CASE - User contributions [en]

Main Page

2012-09-10T11:07:43Z

RichardLefferts: /* Center for Accelerator Science and Education */

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= Center for Accelerator Science and Education =
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The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
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|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Spring 2012]]
** CASE Faculty hosted and taught at the June 2011 [http://uspas.fnal.gov/programs2/2011/sbu/index.shtml US Particle Accelerator School]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Main Page

2012-09-10T11:06:34Z

RichardLefferts: /* Center for Accelerator Science and Education */

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Spring 2012]]
** CASE Faculty hosted and taught at the June 2011 [http://uspas.fnal.gov/programs2/2011/sbu/index.shtml US Particle Accelerator School]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [http://www.mariachi.stonybrook.edu/wiki/index.php/User:Marx Dr. Michael Marx] Former Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Main Page

2012-01-09T15:13:07Z

RichardLefferts:

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Spring 2012]]
** CASE Faculty hosted and taught at the June 2011 [http://uspas.fnal.gov/programs2/2011/sbu/index.shtml US Particle Accelerator School]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [http://www.mariachi.stonybrook.edu/wiki/index.php/User:Marx Dr. Michael Marx] Former Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Main Page

2012-01-09T15:11:10Z

RichardLefferts: linked Mike Marx to Mariachi and Physics dept memorial pages

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Fall 2010]]
** CASE Faculty will host and teach as the June 2011 [http://uspas.fnal.gov/programs2/2011/sbu/index.shtml US Particle Accelerator School]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [http://www.mariachi.stonybrook.edu/wiki/index.php/User:Marx Dr. Michael Marx] Former Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Tandem

2011-03-22T14:13:52Z

RichardLefferts:

==Background==

The particle accelerator we will be using is FN-8, the eighth ""King Tandem"" built by the High Voltage Engineering Corporation. High Voltage was founded by Robert Van de Graaff and partners as the first commercial manufacturer of Van de Graaff generators. Our FN was built in 1966 and first brought into operation in 1968. The original specification was for 7.5 Million Volts with beam; our FN attained over 10 MV without beam (or accelerator tubes) and has run for experiments at 9.8 MV. It will still reach the original spec. today but the maintenance staff will limit operation to below 8.5MV out of simple fear.

Van de Graaffs are still being produced today by two manufacturers: [http://www.pelletron.com National Electrostatic Corporation] and [http://www.highvolteng.com/ High Voltage Engineering Europa]. The primary uses for VdG's are Accelerator Mass Spectrometry, materials characterization and modification and nuclear physics. HVEE is a descendant of the original HVEC, along with [http://www.vivirad.com/ Vivirad]. Lists of current installations can be found on the manufacturers websites.

== Theory of Operation==

There are many descriptions of the operation of a Van de Graaff available online, in textbooks and in the literature. An excellent reference recently added to the SBU Math/Physics Library is Electrostatic Accelerators: Fundamentals and Applications, edited by Hellborg.

In short, a Van de Graaff produces a high, dc voltage via having a constant current source deliver charge into an enormous resistance.

The constant current source is the charging belt, which mechanically transports charge from ground against the potential and delivers it to the high voltage ''terminal''. In our FN-8, this belt is a chain of aluminum, stainless steel and plastic called a Laddertron. It is ~12 meters long, revolves at 12 meters per second and can deliver a total charge of 250 microAmps. Charge is induced on the links of the belt by exposure to a high voltage (up to 50 kV) power supply while the links are in contact with a grounded, conductive pulley. Each charged link is then moved away from the pulley and is now isolated, except for a very high resistance path back down the chain through the plastic insulators. The charged link is moved to the terminal where another conductive pulley receives the charge.

There are three paths for this charge to return to ground: with the beam, into the corona circuit (used for control, see below) and down the VdG support columns. These columns (locally referred to as High Energy and Low Energy) are split electrically into 200 planes. These planes are connected by 800 MegOhm resistor assemblies, creating a total column resistance of ~80 GigaOhms. If the total beam current is small (less than 1 microAmp) and the control circuit takes 20 microAmps, then 70 microAmps of Laddretron current will result in 80 x 10<sup>9</sup> x 50 x 10<sup>-6</sup> = 4 Million Volts.

Voltage control is achieved with the Corona Circuit. Sharp needles are placed on a motor-driven rod and moved close enough to the terminal to draw ~20 microAmps of current. This current is allowed to flow to ground only through a vacuum triode; control of the grid voltage of that triode regulates the Corona Current and so regulates the terminal voltage. The grid voltage is controlled either by the Generating Voltmeter circuit, which compares the terminal voltage as measured by a GVM to a reference value, or by Beam (sometimes called ''slit'') regulation. In this method the Tandem output beam is bent 90<sup>o</sup> by the Analyzing magnet and allowed to hit a pair of slits. Most of the beam passes through but the tails of the current are intercepted, amplified and compared; a circuit then controls the triode grid to keep the slit currents equal.

== Operation ==

===Preparation===

The Tandem drive motor is interlocked to several systems to prevent danger to operators and equipment. These are all satisfied under normal conditions; one usually finds a problem when the interlock acts by preventing the Drive Motor from starting. They include
* a flow switch on the Cooling Water to the coils inside the High Energy end;
* switches on each of the 4 access ports;
* relays in the Low and High Energy Vacuum gauges; these are set to ~5 x 10<sup>-6</sup> Torr

===Start-up===

* Go to the High Energy end of the tandem
* Ensure that the High Energy vacuum is ~1 x 10(-7) Torr and that the Laddertron tension is ~900 lbs
* Plug in the start switch. "Jog" the belt by pressing Start and then quickly pressing Stop. Ensure that the AC Monitor responds, the Vibration Monitor responds, the Tension Monitor briefly shows lower tension and that the sound of the belt is ... right.
* Start the Drive Motor again. The sound should go up in pitch, stabilize and have a 1 Hz hum. The AC Monitor should show ~118 Vac on all three phases. The Vibration Monitor should show ~1.5 units (the units are actually mm/sec). The tension should fall to ~600lbs.
* If any of the above values are far from nominal, please seek assistance.

===Taking the Tandem to Voltage===

At present, raising and setting the Tandem voltage involves a mixture of analog controls and the Master Control program in LabView. Proceed to the Control Room and you will learn the latest version. As of October 2010 the procedure is:
* Raise the Base Charging potentiometer to 2.2 turns. This will raise the base charging supply to voltage and result in positive charge travelling ''up'' the chain to the terminal. The Laddertron charging ammeter should show ~35 microAmps.
* Raise the Terminal Charging potentiometer to 2.0 turns. This will raise the terminal charging supply to voltage and result in negative charge travelling ''down'' the chain from the terminal. The Laddertron charging ammeter should show ~70 microAmps (35+35).
* Select the Tandem tab in on the front panel of MasterRT.vi. Observe that the displayed voltage will be approximately 3 MV. Use the control to set a voltage near 3MV. You will observe the control signal change on the console oscilloscope and the grid and control currents respond. The Tandem should reach the new reference voltage in 1-2 seconds.
* The desired voltage can be found through calculation from the desired energy. An online utility can be found at [http://casensl4.physics.sunysb.edu CASE Experiment Manager]

===Troubleshooting===
* Seek expert assistance!

Return to [[Lab Manuals]]

Phy 445/515 Calendar

2010-10-08T12:37:46Z

RichardLefferts: removed aug and sep

Lab Manuals

2010-10-07T09:28:43Z

RichardLefferts: Added RLM writeup

=<center>PHY 415/515: Senior/Graduate Laboratory</center>=

<div align="center" width="50%">The CASE Nuclear Structure Lab is offering 2 experiments to students in Phy 445/515. In each instance students will learn to operate the Tandem accelerator facility to do a classic nuclear physics experiment.</div>

{| cellspacing="3" align="center"
|- valign="top"
|width="10%" style="border: 1px solid #aaa; color: #000; background-color: #eeeefe"|
<div style="padding: .4em .9em .9em">

== [[Al (p,n) Si | <sup>27</sup>Al (p,n) <sup>27</sup>Si]] ==

An investigation of the neutron threshold for the <sup>27</sup>Al (p,n) <sup>27</sup>Si nuclear fusion reaction. Determination of a neutron threshold gives information on the isospin (p versus n) dependence of the nuclear force.
</div>

|width="10%" style="border: 1px solid #CAC7B6; color: #000; background-color: #eeeefe"|
<div style="padding: .4em .9em .9em">

==[[B (p,n) C | <sup>11</sup>B (p,n) <sup>11</sup>C]]==

Creation of <sup>11</sup>C from <sup>11</sup>B through the use of a proton beam, and study of the gamma rays produced by positron emission in <sup>11</sup>C. This isotope is of interest for its use in Positron Emission Tomography (PET).

Here is the official PHY445/515 lab manual for this experiment [[Media:C11writeup.doc‎ | 11B(p,n)11C]]

</div>
|}

==Common Schedule==

Doing PHY 445/515 experiments in the CASE NSL requires a more rigid plan than most PHY 445/515 because there is so much to learn and because the accelerator must be shared with other students. A rough plan for either experiment is as follows:

; Session One
: Find the Van de Graaff building, meet the accelerator staff, take an introductory tour, take a lecture on ion source operation;
; Session Two
: Get introduced to LabView basics and the CASE NSL control system, develop and tune an ion source beam, begin work with detection electronics;
; Session Three
: Work with detector and electronics, take a lecture on Van de Graaff operation, bring Tandem VdG to a desired voltage;
; Session Four
: Work with target station and vacuum to install target, take a brief lecture on ion optics of our system, tune a beam to target with help;
; Session Five
: Develop and tune a beam to target with supervision (that's different than help ...), make a preliminary measurement;
; Session Six
: Conduct your experiment.
; Session Seven
: Repeat or refine your measurement as required.
; Session Eight
: Repeat or refine your measurement, investigate systematic errors, begin data reduction.

==More Information==

<ul>
<li>[[Accelerator Operation and Components]]</li>
<li>[[Radiation Safety]]</li>
<li>[[Phy 445/515 Calendar]]</li>
</ul>

Even more information on PHY 445 and PHY 515 is available on Stony Brook University [http://blackboard.stonybrook.edu/ Blackboard]

File:C11writeup.doc

2010-10-07T09:25:55Z

RichardLefferts: This is the official lab manual for Phy 445/515 for the 11C experiment

This is the official lab manual for Phy 445/515 for the 11C experiment

Tandem

2010-10-05T13:02:34Z

RichardLefferts:

==Background==

The particle accelerator we will be using is FN-8, the eighth ""King Tandem"" built by the High Voltage Engineering Corporation. High Voltage was founded by Robert Van de Graaff and partners as the first commercial manufacturer of Van de Graaff generators. Our FN was built in 1966 and first brought into operation in 1968. The original specification was for 7.5 Million Volts with beam; our FN attained over 10 MV without beam (or accelerator tubes) and has run for experiments at 9.8 MV. It will still reach the original spec. today but the maintenance staff will limit operation to below 8.5MV out of simple fear.

Van de Graaffs are still being produced today by two manufacturers: [http://www.pelletron.com National Electrostatic Corporation] and [http://www.highvolteng.com/ High Voltage Engineering Europa]. The primary uses for VdG's are Accelerator Mass Spectrometry, materials characterization and modification and nuclear physics. HVEE is a descendant of the original HVEC, along with [http://www.vivirad.com/ Vivirad]. Lists of current installations can be found on the manufacturers websites.

== Theory of Operation==

There are many descriptions of the operation of a Van de Graaff available online, in textbooks and in the literature. An excellent reference recently added to the SBU Math/Physics Library is Electrostatic Accelerators: Fundamentals and Applications, edited by Hellborg.

In short, a Van de Graaff produces a high, dc voltage via having a constant current source deliver charge into an enormous resistance.

The constant current source is the charging belt, which mechanically transports charge from ground against the potential and delivers it to the high voltage ''terminal''. In our FN-8, this belt is a chain of aluminum, stainless steel and plastic called a Laddertron. It is ~12 meters long, revolves at 12 meters per second and can deliver a total charge of 250 microAmps. Charge is induced on the links of the belt by exposure to a high voltage (up to 50 kV) power supply while the links are in contact with a grounded, conductive pulley. Each charged link is then moved away from the pulley and is now isolated, except for a very high resistance path back down the chain through the plastic insulators. The charged link is moved to the terminal where another conductive pulley receives the charge. This is an excellent demonstration of Faraday's Law: the charge transfer takes place within a conductor and so is driven by only the induced voltage (less than 50 kV) on each link.

There are three paths for this charge to return to ground: with the beam, into the corona circuit (used for control, see below) and down the VdG support columns. These columns (locally referred to as High Energy and Low Energy) are split electrically into 200 planes. These planes are connected by 800 MegOhm resistor assemblies, creating a total column resistance of ~80 GigaOhms. If the total beam current is small (less than 1 microAmp) and the control circuit takes 20 microAmps, then 70 microAmps of Laddretron current will result in 80 x 10<sup>9</sup> x 50 x 10<sup>-6</sup> = 4 Million Volts.

Voltage control is achieved with the Corona Circuit. Sharp needles are placed on a motor-driven rod and moved close enough to the terminal to draw ~20 microAmps of current. This current is allowed to flow to ground only through a vacuum triode; control of the grid voltage of that triode regulates the Corona Current and so regulates the terminal voltage. The grid voltage is controlled either by the Generating Voltmeter circuit, which compares the terminal voltage as measured by a GVM to a reference value, or by Beam (sometimes called ''slit'') regulation. In this method the Tandem output beam is bent 90<sup>o</sup> by the Analyzing magnet and allowed to hit a pair of slits. Most of the beam passes through but the tails of the current are intercepted, amplified and compared; a circuit then controls the triode grid to keep the slit currents equal.

== Operation ==

===Preparation===

The Tandem drive motor is interlocked to several systems to prevent danger to operators and equipment. These are all satisfied under normal conditions; one usually finds a problem when the interlock acts by preventing the Drive Motor from starting. They include
* a flow switch on the Cooling Water to the coils inside the High Energy end;
* switches on each of the 4 access ports;
* relays in the Low and High Energy Vacuum gauges; these are set to ~5 x 10<sup>-6</sup> Torr

===Start-up===

* Go to the High Energy end of the tandem
* Ensure that the High Energy vacuum is ~1 x 10(-7) Torr and that the Laddertron tension is ~900 lbs
* Plug in the start switch. "Jog" the belt by pressing Start and then quickly pressing Stop. Ensure that the AC Monitor responds, the Vibration Monitor responds, the Tension Monitor briefly shows lower tension and that the sound of the belt is ... right.
* Start the Drive Motor again. The sound should go up in pitch, stabilize and have a 1 Hz hum. The AC Monitor should show ~118 Vac on all three phases. The Vibration Monitor should show ~1.5 units (the units are actually mm/sec). The tension should fall to ~600lbs.
* If any of the above values are far from nominal, please seek assistance.

===Taking the Tandem to Voltage===

At present, raising and setting the Tandem voltage involves a mixture of analog controls and the Master Control program in LabView. Proceed to the Control Room and you will learn the latest version. As of October 2010 the procedure is:
* Raise the Base Charging potentiometer to 2.2 turns. This will raise the base charging supply to voltage and result in positive charge travelling ''up'' the chain to the terminal. The Laddertron charging ammeter should show ~35 microAmps.
* Raise the Terminal Charging potentiometer to 2.0 turns. This will raise the terminal charging supply to voltage and result in negative charge travelling ''down'' the chain from the terminal. The Laddertron charging ammeter should show ~70 microAmps (35+35).
* Select the Tandem tab in on the front panel of MasterRT.vi. Observe that the displayed voltage will be approximately 3 MV. Use the control to set a voltage near 3MV. You will observe the control signal change on the console oscilloscope and the grid and control currents respond. The Tandem should reach the new reference voltage in 1-2 seconds.
* The desired voltage can be found through calculation from the desired energy. An online utility can be found at [http://casensl4.physics.sunysb.edu CASE Experiment Manager]

===Troubleshooting===
* Seek expert assistance!

Return to [[Lab Manuals]]

Tandem

2010-10-05T13:02:19Z

RichardLefferts: Added brief theory of operation

==Background==

The particle accelerator we will be using is FN-8, the eighth ""King Tandem"" built by the High Voltage Engineering Corporation. High Voltage was founded by Robert Van de Graaff and partners as the first commercial manufacturer of Van de Graaff generators. Our FN was built in 1966 and first brought into operation in 1968. The original specification was for 7.5 Million Volts with beam; our FN attained over 10 MV without beam (or accelerator tubes) and has run for experiments at 9.8 MV. It will still reach the original spec. today but the maintenance staff will limit operation to below 8.5MV out of simple fear.

Van de Graaffs are still being produced today by two manufacturers: [http://www.pelletron.com National Electrostatic Corporation] and [http://www.highvolteng.com/ High Voltage Engineering Europa]. The primary uses for VdG's are Accelerator Mass Spectrometry, materials characterization and modification and nuclear physics. HVEE is a descendant of the original HVEC, along with [http://www.vivirad.com/ Vivirad]. Lists of current installations can be found on the manufacturers websites.

== Theory of Operation==

There are many descriptions of the operation of a Van de Graaff available online, in textbooks and in the literature. An excellent reference recently added to the SBU Math/Physics Library is Electrostatic Accelerators: Fundamentals and Applications, edited by Hellborg.

In short, a Van de Graaff produces a high, dc voltage via having a constant current source deliver charge into an enormous resistance.

The constant current source is the charging belt, which mechanically transports charge from ground against the potential and delivers it to the high voltage ''terminal''. In our FN-8, this belt is a chain of aluminum, stainless steel and plastic called a Laddertron. It is ~12 meters long, revolves at 12 meters per second and can deliver a total charge of 250 microAmps. Charge is induced on the links of the belt by exposure to a high voltage (up to 50 kV) power supply while the links are in contact with a grounded, conductive pulley. Each charged link is then moved away from the pulley and is now isolated, except for a very high resistance path back down the chain through the plastic insulators. The charged link is moved to the terminal where another conductive pulley receives the charge. This is an excellent demonstration of Faraday's Law: the charge transfer takes place within a conductor and so is driven by only the induced voltage (less than 50 kV) on each link.

There are three paths for this charge to return to ground: with the beam, into the corona circuit (used for control, see below) and down the VdG support columns. These columns (locally referred to as High Energy and Low Energy) are split electrically into 200 planes. These planes are connected by 800 MegOhm resistor assemblies, creating a total column resistance of ~80 GigaOhms. If the total beam current is small (less than 1 microAmp) and the control circuit takes 20 microAmps, then 70 microAmps of Laddretron current will result in 80 x 10<sup>9</sup> x 50 x 10<sup>-6</sup> = 4 Million Volts.

Voltage control is achieved with the Corona Circuit. Sharp needles are placed on a motor-driven rod and moved close enough to the terminal to draw ~20 microAmps of current. This current is allowed to flow to ground only through a vacuum triode; control of the grid voltage of that triode regulates the Corona Current and so regulates the terminal voltage. The grid voltage is controlled either by the Generating Voltmeter circuit, which compares the terminal voltage as measured by a GVM to a reference value, or by Beam (sometimes called ''slit'') regulation. In this method the Tandem output beam is bent 90<sup>o</sup> by the Analyzing magnet and allowed to hit a pair of slits. Most of the beam passes through but the tails of the current are intercepted, amplified and compared; a circuit then controls the triode grid to keep the slit currents equal.

== Operation ==

===Preparation===

The Tandem drive motor is interlocked to several systems to prevent danger to operators and equipment. These are all satisfied under normal conditions; one usually finds a problem when the interlock acts by preventing the Drive Motor from starting. They include
* a flow switch on the Cooling Water to the coils inside the High Energy end;
* switches on each of the 4 access ports;
* relays in the Low and High Energy Vacuum gauges; these are set to ~5 x 10<sup>-6</sup> Torr

===Start-up===

* Go to the High Energy end of the tandem
* Ensure that the High Energy vacuum is ~1 x 10(-7) Torr and that the Laddertron tension is ~900 lbs
* Plug in the start switch. "Jog" the belt by pressing Start and then quickly pressing Stop. Ensure that the AC Monitor responds, the Vibration Monitor responds, the Tension Monitor briefly shows lower tension and that the sound of the belt is ... right.
* Start the Drive Motor again. The sound should go up in pitch, stabilize and have a 1 Hz hum. The AC Monitor should show ~118 Vac on all three phases. The Vibration Monitor should show ~1.5 units (the units are actually mm/sec). The tension should fall to ~600lbs.
* If any of the above values are far from nominal, please seek assistance.

===Taking the Tandem to Voltage===

At present, raising and setting the Tandem voltage involves a mixture of analog controls and the Master Control program in LabView. Proceed to the Control Room and you will learn the latest version. As of October 2010 the procedure is:
* Raise the Base Charging potentiometer to 2.2 turns. This will raise the base charging supply to voltage and result in positive charge travelling ''up'' the chain to the terminal. The Laddertron charging ammeter should show ~35 microAmps.
* Raise the Terminal Charging potentiometer to 2.0 turns. This will raise the terminal charging supply to voltage and result in negative charge travelling ''down'' the chain from the terminal. The Laddertron charging ammeter should show ~70 microAmps (35+35).
* Select the Tandem tab in on the front panel of MasterRT.vi. Observe that the displayed voltage will be approximately 3 MV. Use the control to set a voltage near 3MV. You will observe the control signal change on the console oscilloscope and the grid and control currents respond. The Tandem should reach the new reference voltage in 1-2 seconds.
* The desired voltage can be found through calculation from the desired energy. An online utility can be found at [http://casensl4.physics.sunysb.edu CASE Experiment Manager]

====Troubleshooting====
* Seek expert assistance!

Return to [[Lab Manuals]]

Tandem

2010-10-05T12:33:32Z

RichardLefferts: operation instructions

Tandem

2010-10-05T12:20:30Z

RichardLefferts: make parallel to Ion source

Tandem

2010-10-05T12:18:26Z

RichardLefferts: Adding some background info

Ion Source

2010-10-05T11:13:52Z

RichardLefferts:

==Background==

The ion source we will be using is a General Ionex 860A Inverted Sputter negative ion source. We use negative ions so that we can benefit from (ie. accelerate with) the voltage of the [[Tandem]] Van de Graaff twice. Sources of this type have been commercially available for about 25 years and are still sold by National Electrostatics Corporation (the [http://www.pelletron.com/negion.htm SNICS]), High Voltage Engineering Europa (the [http://www.highvolteng.com/ionsources.html 860A and C] and Peabody Scientific (the [http://www.peabody-scientific.com/page3.html PS-120].

==Theory of Operation==

An inverted sputter source works by creating a beam of positive ions which hit a sample of the material of interest. The positive ions deposit several atomic layers deep and stimulate the sample to sputter out material. Any negative ions which are released are extracted by a large negative potential.

The positive beam in an 860A source consists of cesium plus one (Cs<sup>+</sup>) ions. The source of Cs is called the boiler; it is a small vacuum which holds about 1 gram of Cs with a 40 Watt heater. The Cs boiler temperature is controlled through the current on the boiler power supply.

Cs vapor enters the source head through a feed tube. The neutral Cs vapor finds the ionizer, a coil of tantalum co-axial wire which is heated to 1200<sup>o</sup>C. Cesium vapor pressure is very high at 1200<sup>o</sup>C so the Cs immediately evaporates. However, Ta has [http://environmentalchemistry.com/yogi/periodic/Ta.html work function] of 4.25 eV while Cs has an [http://environmentalchemistry.com/yogi/periodic/Cs.html ionization potential] of 3.89 eV. Therefore, it is energetically favorable for the Cs to evaporate as Cs<sup>+</sup>.

These Cs<sup>+</sup> ions experience an acceleration toward the sample holder of 3-5kV created by the cathode power supply.
The sputtered negative ions are ''pulled'' out by the extraction power supply, typically at 15kV.

More information on the inverted sputter source can be found from manufacturers such as [http://www.pelletron.com/negion.htm NEC]

[[Image:IonSource-1.jpg|500px|thumb|left| Schematic of the 860A]]
[[Image:IonSource-2.jpg|thumb|500px|right| Photo of the 860A, from HVEE]]

<br>
==Operation==

===Preparation===

Before one operates the ion source, there are checks to perform. Only then can one switch the AC power for the ion source table from "wall power" to the motor-generator set. Typically students will do these steps under the direct supervision of the accelerator staff.

It is wise to check that the LabView control system is running before taking further steps. Use the Measurement and Automation Explorer (MAX) to see that all of the satellite computers are on and responding. If a machine does not respond, try a soft re-boot using MAX. If this fails, it may be necessary to do a hard re-boot at the machine.

* Checks: DI water, Vacuum, Gates
* Isolating vacuum and preparing Turbo to be off
* Switching AC Power source
* Restoring vacuum
* Turning on power supplies at Table, Magnet and Source stations
* Closing the Cage
* Opening LE Tube Valve
* Turning on AC power for the Cathode, Extraction and Glassman (table/injection/pre-accel) power supplies

===Start-up===

* Ensure that the ion source drive shaft is on, vacuum is good, power supplies are on, gate is closed, LE Tube valve is open
* Ensure that the control system is running. On MasterRT.vi front panel do the rest.
* Ensure that the LE Faraday Cup is in (Green, as of 8/21/2010) and that the selector switch sends that current to the electrometer
* Ensure that the Extraction Voltage is ~15 kV, the Inflection Magnet is near a useful ion mass (1, 12 or 16 are good choices).
* Raise the ionizer voltage to 8V gradually over a few minutes. Do not exceed 22 Amps. You will observe the heating of the Tantalum by an increase in the resistance of the ionizer. OK, at the very end you may exceed 22 amps if required to reach 8V.
* Set other parameters to likely values:
** Einzel Lens to 3 kV
** Variable Steerer to same as Fixed Steerer
** Ground Station Triplet X to 1.1KV and Y to 1.2KV
** LE Steerer H to -700V and V to +1100 V (note, these units are bogus as of 8/2010)
* Once the ionizer has 8V (~175 Watts) raise the Cathode Voltage slowly. If you see rapid changes to the Extraction Voltage/current or cathode current or a decrease in the ionizer current there may be sparking. In this case, lower the cathode voltage below the sparking point and wait. Increase slowly. A good first value will be 2 kV.

===Tuning===

* Observe the LE Faraday Cup [[Faraday Cups | LE Faraday cup]] current on the electrometer. Note that it should be negative. Recently we have found that one must wait 15 minutes for current to appear: Don't Panic. Once current appears you can tune all of the above mentioned parameters (not the ionizer, however!).
** If there is no current, note your starting value and scan the Inflection magnet. Hint: mass 16 will be present for any sample unless there is something wrong with the set-up.

===Troubleshooting===

If the beam cannot be found or has a low beam current:
*The cesium boiler can be "pushed"; a higher Cs boiler temperature results in higher Cs vapor pressure and higher Cs current.

Return to [[Lab Manuals]]

File:IonSource-2.jpg

2010-10-05T10:58:01Z

RichardLefferts: Photo of an 860A negative ion source (from manufacturer)

Photo of an 860A negative ion source (from manufacturer)

File:IonSource-1.jpg

2010-10-05T10:57:22Z

RichardLefferts: Schematic of an 860A negative ion source

Schematic of an 860A negative ion source

Ion Source

2010-10-05T10:54:55Z

RichardLefferts:

==Background==

The ion source we will be using is a General Ionex 860A Inverted Sputter negative ion source. We use negative ions so that we can benefit from (ie. accelerate with) the voltage of the [[Tandem]] Van de Graaff twice. Sources of this type have been commercially available for about 25 years and are still sold by National Electrostatics Corporation (the [http://www.pelletron.com/negion.htm SNICS]), High Voltage Engineering Europa (the [http://www.highvolteng.com/ionsources.html 860A and C] and Peabody Scientific (the [http://www.peabody-scientific.com/page3.html PS-120].

==Theory of Operation==

An inverted sputter source works by creating a beam of positive ions which hit a sample of the material of interest. The positive ions deposit several atomic layers deep and stimulate the sample to sputter out material. Any negative ions which are released are extracted by a large negative potential.

The positive beam in an 860A source consists of cesium plus one (Cs<sup>+</sup>) ions. The source of Cs is called the boiler; it is a small vacuum which holds about 1 gram of Cs with a 40 Watt heater. The Cs boiler temperature is controlled through the current on the boiler power supply.

Cs vapor enters the source head through a feed tube. The neutral Cs vapor finds the ionizer, a coil of tantalum co-axial wire which is heated to 1200<sup>o</sup>C. Cesium vapor pressure is very high at 1200<sup>o</sup>C so the Cs immediately evaporates. However, Ta has [http://environmentalchemistry.com/yogi/periodic/Ta.html work function] of 4.25 eV while Cs has an [http://environmentalchemistry.com/yogi/periodic/Cs.html ionization potential] of 3.89 eV. Therefore, it is energetically favorable for the Cs to evaporate as Cs<sup>+</sup>.

These Cs<sup>+</sup> ions experience an acceleration toward the sample holder of 3-5kV created by the cathode power supply.
The sputtered negative ions are ''pulled'' out by the extraction power supply, typically at 15kV.

==Operation==

===Preparation===

Before one operates the ion source, there are checks to perform. Only then can one switch the AC power for the ion source table from "wall power" to the motor-generator set. Typically students will do these steps under the direct supervision of the accelerator staff.

It is wise to check that the LabView control system is running before taking further steps. Use the Measurement and Automation Explorer (MAX) to see that all of the satellite computers are on and responding. If a machine does not respond, try a soft re-boot using MAX. If this fails, it may be necessary to do a hard re-boot at the machine.

* Checks: DI water, Vacuum, Gates
* Isolating vacuum and preparing Turbo to be off
* Switching AC Power source
* Restoring vacuum
* Turning on power supplies at Table, Magnet and Source stations
* Closing the Cage
* Opening LE Tube Valve
* Turning on AC power for the Cathode, Extraction and Glassman (table/injection/pre-accel) power supplies

===Start-up===

* Ensure that the ion source drive shaft is on, vacuum is good, power supplies are on, gate is closed, LE Tube valve is open
* Ensure that the control system is running. On MasterRT.vi front panel do the rest.
* Ensure that the LE Faraday Cup is in (Green, as of 8/21/2010) and that the selector switch sends that current to the electrometer
* Ensure that the Extraction Voltage is ~15 kV, the Inflection Magnet is near a useful ion mass (1, 12 or 16 are good choices).
* Raise the ionizer voltage to 8V gradually over a few minutes. Do not exceed 22 Amps. You will observe the heating of the Tantalum by an increase in the resistance of the ionizer. OK, at the very end you may exceed 22 amps if required to reach 8V.
* Set other parameters to likely values:
** Einzel Lens to 3 kV
** Variable Steerer to same as Fixed Steerer
** Ground Station Triplet X to 1.1KV and Y to 1.2KV
** LE Steerer H to -700V and V to +1100 V (note, these units are bogus as of 8/2010)
* Once the ionizer has 8V (~175 Watts) raise the Cathode Voltage slowly. If you see rapid changes to the Extraction Voltage/current or cathode current or a decrease in the ionizer current there may be sparking. In this case, lower the cathode voltage below the sparking point and wait. Increase slowly. A good first value will be 2 kV.

===Tuning===

* Observe the LE Faraday Cup [[Faraday Cups | LE Faraday cup]] current on the electrometer. Note that it should be negative. Recently we have found that one must wait 15 minutes for current to appear: Don't Panic. Once current appears you can tune all of the above mentioned parameters (not the ionizer, however!).
** If there is no current, note your starting value and scan the Inflection magnet. Hint: mass 16 will be present for any sample unless there is something wrong with the set-up.

===Troubleshooting===

If the beam cannot be found or has a low beam current:
*The cesium boiler can be "pushed"; a higher Cs boiler temperature results in higher Cs vapor pressure and higher Cs current.

Return to [[Lab Manuals]]

Main Page

2010-10-01T09:25:54Z

RichardLefferts: Added USPAS

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Fall 2010]]
** CASE Faculty will host and teach as the June 2011 [http://uspas.fnal.gov/programs2/2011/sbu/index.shtml US Particle Accelerator School]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [[User:MichaelMarx | Dr. Michael Marx]] Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Detectors

2010-09-30T12:37:21Z

RichardLefferts: Added biasing instructions

=== Experiments using Neutron Detectors ===

;Boron Trifluoride
: Here are some references on BF3 detectors
* A commercial source with good information is [http://www.rtftechnologies.org/physics/fusor-mark3-neutron-detector.htm RTF Technologies]
* More design info on detectors-"picture and equations" [http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=jnst1964&cdvol=3&noissue=8&startpage=343&lang=en&from=jnlabstract 1964 Paper]
* BF(3), Facts and Ionization Energy from [http://webbook.nist.gov/cgi/cbook.cgi?ID=C7637072&Mask=20#Ion-Energetics NIST]
* BF3 counter design info from Dr. Paul Frame of Oak Ridge National Lab [http://www.orau.org/ptp/collection/proportional%20counters/bf3info.htm ORAU Collection]

=== 11C Identification and Measurement ===

;Sodium Iodide
: We use 2 2" Sodium Iodide detectors, manufacture by Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint-Gobain]
These detectors have thin, havar windows because they were originally intended to measure light charged particles (proton, deuteron, triton, alpha) in light fusion reactions [http://prc.aps.org/abstract/PRC/v39/i1/p128_1 Paper from 1986]

NaI was one of the first inorganic scintillators discovered (reference) and is still widely used for x-ray and gamma ray detection. It has good "stopping power" or long "radiation length", ie, good ability to stop photons. The energy resolution is poor compared to CsI or BaF2 and is not even in the same league as HPGe. However, it is better than most organic scintillators.

The NaI scintillates in the (blue/uv/don't remember) and so is coupled to a photomultiplier with a (don't know) window. The PMT acts to increase convert the scintillation light into electrons then multiply the electron current until it is large enough for us to amplify or observe.

;Photomultiplier Tube
: Tube Base, Anode, dynode outs (these also have connections for Peltier Coolers [http://en.wikipedia.org/wiki/Thermoelectric_cooling Encyclopedia Reference]

; NIM Bin
: A Nuclear Instrumentation Module (NIM) bin is a rack providing mechanical support and DC power to NIM modules. Similar devices were used as early as the 1950's but the NIM standard dates to 1968. For this experiment we will use the following NIM modules:
* HV Power supply for Tube Base, Ortec Model 478 Bias Supply, Bipolar, 0-2kV or similar
* Linear Fan In/Fan Out, LeCroy Model 428F
* Discriminator, Philips Scientific Model 710, Octal, leading edge discrimination of NIM negative signals
* Coincidence, LeCroy Research Systems Model 363AL 4-Fold Logic Gate
* Scalar, Ortec Model 871 Timer/Counter
[[Image:NIMbinnai.png‎|thumb|450px|left | Drawing of NIM Electronics for 11C experiment]]
[[Image:C11nimbin.jpg|thumb|450px|right| Actual NIM Electronics for 11C experiment with pulses]]

=== Biasing the NaI Detectors ===

We will use two sodium iodide (NaI) detectors and a coincidence circuit to observe the decay of 11C. The NaI's are a pair of Bicron 2XMI 0.5/2H
which are 2" diameter, 2" tall cylindrical crystals with a Havar window and Bicron photomultiplier tube (PMT). The phototube bases were built in the Dept. of Physics and Astronomy Electronics Shop; they distribute the high voltage (negative!) to the PMT dynodes via a resistor chain. The tube base has connections for high voltage ("-HV"), dynode ("D", the seventh dynode) and anode ("A", the tenth and last dynode).

SAFETY NOTE: All surfaces on the detectors, electronics and cables are at ground potential. HV cables have grounded shields and all exposed HV is recessed away from stray fingers. Nevertheless, one should always follow the instructions carefully and be alert to frayed, damaged cables or loose connections.

;Cabling
: 1. Check that the NIM Bin is off before making any high voltage connections.
: 2. Take a high voltage cable from the High Voltage (J1) connector on the rear of an Ortec 478 2kV power supply to the "-HV" input on an NaI tubebase. Note that high voltage cables are "RG-59" cable and have "SHV" connectors, which are not compatible with the signal connectors ("BNC").
: 3. Take a signal cable from the tubebase anode "A" to the oscilloscope. This will be "tee-d" to a cable running to an input on the Philips Scientific Model 710 Discriminator.
: 4. Ensure that the HV power supplies are OFF (switch near the bottom of the front panel) and that they are set to Zero.
: 5. Power the Nim bin. Switch each HV supply ON. The front panel meter should display zero volts but the polarity light should indicate "Negative".

;Setting the HIgh Voltage
Observe the two oscilloscope traces. Prepare the oscilloscope to see negative going pulses with amplitude of a few tens of milliVolts and rise time of tens of nanoSeconds. Put -500V on each detector and observe the result. Increase the voltage to a total of -1000V. You will see the pulses described above on the channel on which you have triggered. Switch the trigger to the other channel. Add -100 to -200 more volts to each detector. A higher voltage will increase the pulse size; it is desireable to have the detectors "gain matched". Voltages circa -1100V should be sufficient; requiring much higher voltage indicates that the crystal or crystal-PMT "coupling" is damaged.

Main Page

2010-09-08T13:55:03Z

RichardLefferts: link for PhD students at BNL

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
**[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Fall 2010]]
** PhD and MSI theses from students at the [http://www.bnl.gov/cad/ardd/Education_CASE.asp BNL ARDD]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [[User:MichaelMarx | Dr. Michael Marx]] Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

PastCourses

2010-09-08T13:50:30Z

RichardLefferts: removed bad link

== Courses Taught by CASE Faculty ==

* Experiments in PHY 445/515, Fall 2010 [[Lab Manuals]]
* CASE Summer Accelerator [[Workshop]], July 26-30, Dr. Hemmick
* WISE 187, Spring 2010, Introduction to Research, Dr. Hemmick
* Summer 1-Day Accelerator Camp, July 16 2009, Dr. Hemmick
* PHY 684, Fall 2007, Physics of Particle Accelerators, Dr. Litvinenko, Kewisch, Mackay, Satogata
* PHY 684, Spring 2007, Physics of Particle Accelerators, Dr. Livinenko
* PHY 684, Spring 2005, Physics of Particle Accelerators, Dr. Mackay
* PHY 684, Spring 2004, Physics of Particle Accelerators, Dr. Peggs

Main Page

2010-09-08T13:47:14Z

RichardLefferts: MM, VL, IB-Zrefer to user page

__NOTOC__
{|width="560" cellspacing="10" cellpadding="10" align="center"
|- valign="top"
|style="border: 0px solid #000; color: #000; background-color: #fff"|
<div style="padding: 1em 1em 1em 1em">
= Center for Accelerator Science and Education =
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #ffffcc"|
<div style="padding: .4em .9em .9em">
The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #efe"|
<div style="padding: .4em .9em .9em">

== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Fall 2010]]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[User:VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[User:IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [[User:MichaelMarx | Dr. Michael Marx]] Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

User:IlanBenZvi

2010-09-08T13:45:14Z

RichardLefferts: created user page

[[Image:IlanBen-Zvi.jpg|thumb|200px|right|Ilan Ben-Zvi]]

Ilan Ben-Zvi, a senior physicist at the U.S. Department of Energy’s Brookhaven National Laboratory, has been recognized as an IEEE Fellow. The IEEE originally represented electrical and electronics engineers, but it has expanded its scope and today is the world’s leading professional association for the advancement of technology. The IEEE Fellowship is one of the organization’s most prestigious honors.

Ben-Zvi was recognized “for leadership in superconducting accelerators, high brightness electron sources and free electron lasers.”

Ben-Zvi is head of the superconducting accelerator and electron cooling group at Brookhaven Lab’s Collider-Accelerator Department, where he develops state-of-the-art superconducting radio frequency accelerator elements and high-current, high-brightness electron beams. As director of Brookhaven Lab’s Accelerator Test Facility (ATF) for 15 years, Ben-Zvi saw to its development as the premiere advanced accelerator physics facility in the world. Working at the ATF, Ben-Zvi developed devices and techniques for improving free electron lasers, instruments used to study a wide variety of materials and chemical reactions; and devices for more efficiently operating accelerators for physics research.

After earning a Ph.D. in physics from the Weizmann Institute of Science, Israel, in 1970, Ben-Zvi went to Stanford University, where he helped develop superconducting linear accelerators. In 1975, he returned to Weizmann and founded a cryogenic technology laboratory. From 1980-1982, Ben-Zvi was a visiting associate professor of physics at Stony Brook University. He helped to establish an accelerator at Stony Brook, and he invented and developed accelerator systems now used throughout the world.

Ben-Zvi joined Brookhaven Lab as a visiting physicist in 1988 and rose through the ranks to become a senior physicist in 1997. He served as head of Brookhaven’s Accelerator Test Facility from 1992 to 2007, and he is currently the associate chair for superconducting accelerator R&D at Brookhaven’s Collider-Accelerator Department as well as an adjunct professor of physics at Stony Brook.

Ben-Zvi is a Fellow of both the American Association for the Advancement of Science and the American Physical Society. He is also the recipient of the IEEE Accelerator Science and Technology Award in 1999 and the IEEE Nuclear & Plasma Sciences Society Merit Award in 2008. He received Brookhaven Lab’s Science and Technology Award in 2001 and the Free Electron Laser Prize in 2007, sponsored by the International Free Electron Laser Conference. He has served in leading roles in many international scientific meetings and distinguished scientific panels, including a National Academy of Sciences’ committee. He is the author or coauthor of over 375 publications.

User:VladimirLitvinenko

2010-09-08T13:44:30Z

RichardLefferts: created user page

[[Image:VladimirLitvinenko.jpg|thumb|200px|right|Vladimir Litvinenko]]

Vladimir Litvinenko, a physicist at the U.S. Department of Energy's Brookhaven National Laboratory, won the 2004 Free Electron Laser (FEL) Prize along with Hiroyuki Hama of Tohoku University, Japan. Sponsored by the International Free Electron Laser Conference to recognize outstanding contributions to FEL science and technology, the prize consists of a certificate and a plaque, and approximately $2,500 for each of the recipients. Litvinenko and Hama received their awards at the conference this month, which was held in Trieste, Italy.
Photo of Vladimir Litvinenko

A free electron laser is a research tool that combines the focus of lasers and the intensity of synchrotrons, and it is useful in studying a wide variety of materials and chemical interactions. Litvinenko and Hama worked independently and were honored for separate contributions to the field.

"I am honored to accept the FEL Prize, which acknowledges my work at the Institute for Nuclear Physics in Russia and at Duke University," Litvinenko said. "I'd also like to thank my colleague, Igor Pinayev, for working along side me in Russia, at Duke, and now at Brookhaven Lab. His contributions were very important to my research in the FEL field."

Litvinenko and his team built a number of FELs based on the design of an optical klystron, an advanced version of an FEL. In 1988 and 1999, the team was the first in the world to extend the range of an FEL to the ultraviolet wavelength and to the vacuum ultraviolet, respectively. This work makes possible a wider variety of experiments in numerous scientific fields.

A theorist as well as an experimentalist, Litvinenko also was the first to develop the theory of storage-ring FELs, such as the one he and his team designed and built at Duke, with excellent agreement between theory and experiments. In addition, he invented and perfected "super-pulses" to generate very high power FEL light. These super-pulses increase sensitivity a thousand fold for nuclear physics experiments, and they are used in medical applications. Also, these super-pulses generate high harmonics, meaning they can provide photons for FEL experiments that have up to seven times more energy than usual. This improvement may lead to x-ray FELs - a powerful tool that may be used to study the structure of single biological molecules.

At Duke University, Litvinenko developed a high-intensity gamma ray user facility based on the storage ring FEL. This facility generated gamma ray beams of unprecedented quality and intensity, leading to new discoveries using an experimental technique called nuclear resonant fluorescence. The ability of this source to generate gamma rays in very pure form made it the ideal instrument to calibrate a gamma ray telescope to look at galaxies and observe supernovas.

Litvinenko earned his bachelor's and master's degrees in physics from Novosibirsk State University, Russia, in 1975 and 1977, respectively, and he earned his Ph.D. in physics and mathematics from the Institute for Nuclear Physics, Russia, in 1989. After working at the Institute for Nuclear Physics from 1973 to 1991, Litvinenko became a faculty member at Duke University in 1991. A frequent guest researcher at Brookhaven Lab, Litvinenko joined Brookhaven as a senior physicist in 2003, and he is currently head of the Accelerator Physics Group for Brookhaven's newest facility for nuclear physics research, the Relativistic Heavy Ion Collider. He also became an adjunct professor at Stony Brook University in 2003.

User:MichaelMarx

2010-09-08T13:43:28Z

RichardLefferts: created user page

[[Image:MichaelMarx.jpg|thumb|200px|right|Michael Marx]]

As the doors open for Stony Brook University’s (SBU) new on-site Office of Brookhaven Affairs in Bldg. 460, Michael Marx, SBU’s Associate Vice President for Brookhaven Affairs,
announced several benefits at SBU available to all BNL employees. BNL is managed for DOE by Brookhaven Science Associates, a limited-liability company formed by partners Battelle and SBU.

''I am very excited to offer BNLers access to some of the great things going on at Stony Brook. We hope these opportunities will strengthen relationships between Stony Brook and BNL as we further the world-class science being done at these closely linked research institutions,'' Marx stated.

The benefits include:
* Staller Center for the Arts: $3 discount on ticket price (two tickets per BNL ID)
* Seawolves/Athletic Events: 40 percent off ticket price (two tickets per BNL ID)
* Library Collections: borrowing privileges with BNL ID
* Wellness Center: 40 percent off subscription rate with BNL ID
* Sports Complex: $75 per person per year; $150 per family of four per year. Includes access to track, open basketball court, racquetball court, squash court, weight room, and pool (when not used for classes)
* Parking: may purchase garage passes; BNL tag may be used in faculty/staff free parking lots

SBU’s Office of Brookhaven Affairs is led by Provost and Vice President Eric Kaler. He replaced retiree Bob McGrath in 2007, and in 2008, he appointed Michael Marx as the Associate Vice President for Brookhaven Affairs. Marx, a physics professor, completed his thesis at BNL’s Alternating Gradient Synchrotron
and has collaborated with Lab scientists for more than 40 years. He continues to explore new avenues to build closer relationships between BNL and university scientists and staff.

Marx and Stony Brook’s Office of Brookhaven Affairs welcome
new ideas and suggestions that will help connect those at BNL and Stony Brook. Marx can be reached at 631-632-8102 or Michael.Marx@StonyBrook.edu.

Main Page

2010-09-08T13:38:08Z

RichardLefferts: TKH refers to user page

__NOTOC__
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= Center for Accelerator Science and Education =
</div>
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The Center for Accelerator Science and Education (CASE) will pursue cutting edge accelerator science and R&D, training of next generation accelerator scientists - graduate and post doctoral – through courses, laboratory and experiments on accelerators. Undergraduate opportunities will play a significant goal of attracting students to the graduate program through introduction to accelerator courses, accelerator laboratory work and summer research opportunities at BNL. The proposed educational program will start with a short term abbreviated educational program of undergraduate, graduate and R&D that will evolve over time.
</div>
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{| cellspacing="3" align="center"
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== Goals ==
The main goals of CASE are:
* To train scientists and engineers with the aim of advancing the field of accelerator science;
[[PastCourses| Courses taught by CASE Faculty]] including [[Lab Manuals | PHY 445/515 Fall 2010]]
* To develop a unique program of educational outreach that will provide broad access to a research accelerator; and,
* To attract Federal and industrial funding for an expanding interdisciplinary research and education program that utilizes accelerators.
The development of CASE capitalizes on resources at both institutions:
* The BNL [http://www.bnl.gov/cad/ardd/ Accelerator Research and Development Division] is a premier center for accelerator development in a broad spectrum of sciences, with many outstanding scientists already affiliated with and teaching at SBU; many of the SBU faculty in various fields already use the existing accelerator based facilities at BNL for their own research;
* Stony Brook University has a recently retired research accelerator – the Tandem Van de Graaff (TvDG) – whose control room has been renovated to become a modern [http://www-mariachi.physics.sunysb.edu/wiki/index.php/MARIACHI_Teaching_Lab Physics Teaching Laboratory (PTL)] that serves graduate, undergraduate students as well as K-12 teachers and students.
</div>

|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #fee"|
<div style="padding: .4em .9em .9em">

==The Collaboration==
* [[User:ThomasHemmick | Dr. Thomas K. Hemmick]] CASE Director, Distinguished Teaching Professor of Physics, Stony Brook University
* [[VladimirLitvinenko | Dr. Vladimir Litvinenko]] CASE Director, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[IlanBenZvi | Dr. Ilan Ben Zvi]] Deputy Director for Research, Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory [http://www.bnl.gov/cad/ecooling/IBZ.asp CV for Dr. Ben Zvi]
* [[MichaelMarx | Dr. Michael Marx]] Associate Vice President for Brookhaven Affairs, Professor of Physics, Stony Brook University
* [http://skipper.physics.sunysb.edu/~abhay Dr. Abhay Deshpande] Professor of Physics, Stony Brook University [http://skipper.physics.sunysb.edu/~abhay/research.html Research]
* [[PaulGrannis | Dr. Paul Grannis]] Distinguished Professor of Physics, Stony Brook University
* [[Derek Lowenstein | Dr. Derek Lowenstein]] Senior Scientist, Collider-Accelerator Department, Brookhaven National Laboratory
* [[StevePeggs | Dr. Steve Peggs]] Superconducting Magnet Division, Brookhaven National Laboratory[http://www.rhichome.bnl.gov/People/peggs/ Home Page]
* [[AxelDrees | Dr. Axel Drees]] Professor of Physics, Stony Brook University
* [[LinwoodLee | Dr. Linwood Lee]] Emeritus Professor of Physics, Stony Brook University
* [[RoyLacey | Dr. Roy Lacey]] Professor of Chemistry, Stony Brook University

* [[USER:SocoroDelquaglio| Socoro Delquaglio]] Project administrator, Stony Brook University
</div>
|}

{| cellspacing="3" align="center"
|- valign="top"
|width="50%" style="border: 1px solid #aaa; color: #000; background-color: #eee"|
<div style="padding: .4em .9em .9em">

== Research Opportunities ==

CASE faculty are involved in many exciting projects. Please contact us for more information.

<ul>

<li> The Department of Energy (DOE) Office of Science (SC) has established the DOE Office of Science Graduate Fellowship [http://www.scied.science.doe.gov/SCGF.html ( DOE SCGF)] program to support outstanding students to pursue graduate training in basic research
<li>[http://www.linearcollider.org/cms/ ILC] is just starting a 2 year very detailed investigation on the electron cloud phenomena using the CESR ring at Cornell. This is a unique opportunity. Anyone interested should contact:<br>
'''Contact: Mike Harrison <[mailto:Harrison@bnl.gov Harrison@bnl.gov]>'''

<li>Students needed to help in developing simulation codes in two areas:
<ol>
<li> spin dynamics and tracking <br>
<li> dynamics of high intensity beams: space charge,impedances, beam-beam, etc <br>
'''Contact: Alfredo U Luccio <[mailto:Luccio@bnl.gov Luccio@bnl.gov]>'''
</ol>

<li>We are looking for students to work on the Stony Brook Tandem Van de Graff accelerator to:
<ol>
<li>Finish implementing the new control system.
<li>Implement new experiments for the Stony Brook Graduate Laboratory.
</ol>
These are ideal MSI minor projects. '''Contact: Thomas K Hemmick <[mailto:Thomas.Hemmick@stonybrook.edu Thomas.Hemmick@stonybrook.edu]>'''

<li> We are looking for graduate students to do thesis research on Superconducting RF (SRF). This is currently the leading accelerator technology with a huge demand for post docs, staff members and faculty.
<ol>
<li>Develop various SRF cavities for linear accelerators and storage rings
<li>Develop advanced techniques in high-power electron and ion beams.
</ol>
There are both MSI and Ph.D. topics. '''Contact: Ilan Ben-Zvi <[mailto:Ilan.Ben-Zvi@StonyBrook.edu Ilan.Ben-Zvi@StonyBrook.edu]>'''

<li>'''Brookhaven National Laboratory, Upton, New York is looking for a POST DOC:''' The person will be working (at least partly)on HTS magnet technology. Requires a Ph.D. in physics, material science, engineering or related fields with an interest in carrying out hands-on research in magnet technology. Practical experience in measuring properties of High Temperature Superconductors (HTS) and/or working with HTS coils is desirable but not necessary. Experience with magnetic and/or mechanical design software is a plus but not a requirement. A successful candidate will get an opportunity to advance his/her career in HTS magnet and/or conductor technology. The candidate is initially expected to work on a project developing radiation-resistant HTS magnets for the proposed Facility of Rare Isotope Beams (FRIB).
<li>Some of the activities in this area can be found at: www.bnl.gov/magnets/Staff/Gupta/

<li>For more information please contact '''Ramesh Gupta gupta@bnl.gov or 631-344-4805 or Arup Ghosh aghosh@bnl.gov or 631-344-3974''' at Brookhaven National Laboratory.
</ul>

</div>
|width="50%" style="border: 1px solid #CAC7B6; color: #000; background-color: #ccffff"|
<div style="padding: .4em .9em .9em">

==Past Projects==

[[Image:StonyBrookVdG.jpg|thumb|left|190px| 9MV FN-8 Tandem Van de Graaff]] First on its own and then as an injector to the Superconducting Heavy Ion Linac, FN-8 was used for Nuclear Physics research at Stony Brook for 40 years.
<br>
<br>

[[Image:SLRplating.jpg|thumb|right|190px| Pb/Sn plated Split Loop Resonator]]
The Stony Brook Superconducting Heavy Ion Linac was commissioned in 1983 and used until 2007. Superconducting RF research at Stony Brook led to the development of the SQWR, the SRFQ and the CPM based SRF controller, among other achievements.

[http://www.stonybrook.edu/nsl/nslhistory.html NSL LAB History]

From July 26-30, 2010, CASE held a [[Workshop]] in accelerator physics for high school teachers and students.

</div>
|}

Detectors

2010-09-08T13:35:48Z

RichardLefferts: fixed references

Accelerator Operation and Components

2010-09-08T13:11:11Z

RichardLefferts:

;The [[Ion Source]]
:The CASE Nuclear Structure Lab ion source is a General Ionex 860A (now part of High Voltage Europa [http://www.highvolteng.com/Ion_Accelerator_Systems.html HVEE]), purchased in 1983. It is a negative ion source capable of making microAmp beams of most elements from the periodic table (exceptions include noble gases).
;The [[Tandem]]
:The CASE Nuclear Structure Lab accelerator is the FN-8 Tandem Van de Graaff built by High Voltage Engineering Corporation in 1967. It uses a pelletized charging chain to create voltages up to 8 Million Volts.
;The [[Ion Optics]]
:A variety of ion optical elements are used to steer and focus the beam.
;The [[Target Room]]
:The CASE NSL Target Room has 6 beamlines available for experiments in nuclear physics, atomic physics, condensed matter, radiation damage and Accelerator Mass Spectromtry.</li>
; The [[Detectors]]
:Each experiment uses specialized detectors to count, identify and characterize the reaction products.

Return to [[Lab Manuals]]

Detectors

2010-09-08T13:10:35Z

RichardLefferts: added photo from workshop

=== Experiments using Neutron Detectors ===

Main Reference Site for Detectors - "How-To"
[http://www.rtftechnologies.org/physics/neutron-detector.htm
]

More design info on detectors-"picture and equations"
[http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=jnst1964&cdvol=3&noissue=8&startpage=343&lang=en&from=jnlabstract]

BF(3), Facts and Ionization Energy
[http://webbook.nist.gov/cgi/cbook.cgi?ID=C7637072&Mask=20#Ion-Energetics]

Alpha Dog, Alpha Particle - All the Facts
[http://www.orau.org/ptp/collection/proportional%20counters/bf3info.htm]

=== 11C Identification and Measurement ===

;Sodium Iodide
: We use 2 2" Sodium Iodide detectors, manufacture by Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint-Gobain]
These detectors have thin, havar windows because they were originally intended to measure light charged particles (proton, deuteron, triton, alpha) in light fusion reactions [http://prc.aps.org/abstract/PRC/v39/i1/p128_1 Paper from 1986]

NaI was one of the first inorganic scintillators discovered (reference) and is still widely used for x-ray and gamma ray detection. It has good "stopping power" or long "radiation length", ie, good ability to stop photons. The energy resolution is poor compared to CsI or BaF2 and is not even in the same league as HPGe. However, it is better than most organic scintillators.

The NaI scintillates in the (blue/uv/don't remember) and so is coupled to a photomultiplier with a (don't know) window. The PMT acts to increase convert the scintillation light into electrons then multiply the electron current until it is large enough for us to amplify or observe.

;Photomultiplier Tube
: Tube BAse, Anode, dynode outs (these also have connections for Peltier Coolers [http://en.wikipedia.org/wiki/Thermoelectric_cooling Do Not follow this link!!!]

; NIM Bin
: A Nuclear Instrumentation Module (NIM) bin is a rack providing mechanical support and DC power to NIM modules. Similar devices were used as early as the 1950's but the NIM standard dates to 1968. For this experiment we will use the following NIM modules:
* HV Power supply for Tube Base, Ortec Model 478 Bias Supply, Bipolar, 0-2kV or similar
* Linear Fan In/Fan Out, LeCroy Model 428F
* Discriminator, Philips Scientific Model 710, Octal, leading edge discrimination of NIM negative signals
* Coincidence, LeCroy Research Systems Model 363AL 4-Fold Logic Gate
* Scalar, Ortec Model 871 Timer/Counter
[[Image:NIMbinnai.png‎|thumb|450px|left | Drawing of NIM Electronics for 11C experiment]]
[[Image:C11nimbin.jpg|thumb|450px|right| Actual NIM Electronics for 11C experiment with pulses]]

File:C11nimbin.jpg

2010-09-08T13:06:04Z

RichardLefferts: Photo of 11C Nim bin electronics and pulses

Photo of 11C Nim bin electronics and pulses

Phy 445/515 Calendar

2010-09-08T10:20:28Z

RichardLefferts: fixed Thanksgiving week

=== PHY 445/515 Autumn 2010 ===

Course meets MoWe and TuTh in B-131 12:50-15:50. Students doing experiments in the CASE NSL should observe these same times except when otherwise arranged.

{| class="wikitable" style="text-align:center" border="1"

|+ <h3>August 2010</h3>

|- style="background:silver"
! Sunday || Monday || Tuesday || Wednesday || Thursday || Friday || Saturday
|-

|width="100" | 1
|width="100" | 2
|width="100" | 3
|width="100" | 4
|width="100" | 5
|width="100" | 6
|width="100" | 7

|-

| 8
| 9
| 10
| 11
| 12
| 13
| 14

|-

| 15
| 16
| 17
| 18
| 19
| 20
| 21

|-

| 22
| 23
| 24
| 25
| 26
| 27
| 28

|-

| 29
| style="background:silver" | 30 <br> First Meeting for MW Section B-131
| style="background:silver" | 31 <br> First Meeting for TTh Section B-131
|
|
|
|

|}

{| class="wikitable" style="text-align:center" border="1"

|+ <h3> September 2010 </h3>

|- style="background:silver"
! Sunday || Monday || Tuesday || Wednesday || Thursday || Friday || Saturday
|-

|width="100" |
|width="100" |
|width="100" |
|width="100" style="background:silver" | 1 <br> In B-131 1-4pm
|width="100" style="background:silver" | 2 <br> In B-131 1-4pm
|width="100" | 3
|width="100" | 4

|-

| 5
| style="background:lightgreen" | 6 <br> Labor Day <br> No Classes
| style="background:silver" | 7 <br> MW Start Lab Work
| style="background:silver" | 8 <br> TTh Start Lab Work
| style="background:lightblue" | 9 <br> Rosh Hashanah No Classes
| style="background:lightblue" | 10 <br> Rosh Hashanah No Classes
| 11

|-

| 12
| style="background:silver" | 13 <br> 12:50-15:50
| style="background:silver" | 14 <br> 12:50-15:50
| style="background:silver" | 15 <br> 12:50-15:50
| style="background:silver" | 16 <br> 12:50-15:50
| style="background:lightblue" | 17 <br> No Classes after 5pm
| style="background:lightblue" | 18 <br> Yom Kippur

|-

| 19
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Detectors

2010-09-08T10:06:55Z

RichardLefferts: Minor edits and add image

Detectors

2010-09-08T10:03:10Z

RichardLefferts:

File:NIMbinnai.png

2010-09-08T09:41:01Z

RichardLefferts: Nim electronics for NaI coincidence, made by Taposhi Biswas

Nim electronics for NaI coincidence, made by Taposhi Biswas

File:MarionPRev100-1-1955.pdf

2010-09-07T14:59:15Z

RichardLefferts: Marion and Bonner use counter ratio method to find excited states in light heavy nuclei

Marion and Bonner use counter ratio method to find excited states in light heavy nuclei

File:LeePPev115-4-1959.pdf

2010-09-07T14:57:04Z

RichardLefferts: Lee uses a Li n capture resonance to improve on the counter ratio method

Lee uses a Li n capture resonance to improve on the counter ratio method

File:BonnerPRev100-1a-1955.pdf

2010-09-07T14:54:18Z

RichardLefferts: Bonner using counter ratio method for medium weight targets

Bonner using counter ratio method for medium weight targets

File:BonnerPRev100-1-1955.pdf

2010-09-07T14:53:21Z

RichardLefferts: Bonner using counter ratio method

Bonner using counter ratio method

File:BonnerPRev96-1-1954.pdf

2010-09-07T14:52:50Z

RichardLefferts: Bonner using long counter

Bonner using long counter

File:BonnerPRev83-6-1951.pdf

2010-09-07T14:52:09Z

RichardLefferts: Bonner using BF3, early trials

Bonner using BF3, early trials

Detectors

2010-09-06T14:54:25Z

RichardLefferts: very crude version, links and phrases

=== Experiments using Neutron Detectors ===

Main Reference Site for Detectors - "How-To"
[http://www.rtftechnologies.org/physics/neutron-detector.htm
]

More design info on detectors-"picture and equations"
[http://www.journalarchive.jst.go.jp/jnlpdf.php?cdjournal=jnst1964&cdvol=3&noissue=8&startpage=343&lang=en&from=jnlabstract]

BF(3), Facts and Ionization Energy
[http://webbook.nist.gov/cgi/cbook.cgi?ID=C7637072&Mask=20#Ion-Energetics]

Alpha Dog, Alpha Particle - All the Facts
[http://www.orau.org/ptp/collection/proportional%20counters/bf3info.htm]

=== 11C Identification and Measurement ===

Use 2 2" Sodium Iodide detectors. Manuafacturer is Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint-Gobain]
These detectors have thin, havar windows because they were originally intended to measure light charged particles (proton, deuteron, triton, alpha) in light fusion reactions [http://prc.aps.org/abstract/PRC/v39/i1/p128_1 Paper from 1986]

NaI was one of the first inorganic scintillators discovered (reference) and is still widely used for x-ray and gamma ray detection. It has good "stopping power" or long "radiation length", ie, good ability to stop photons. The energy resolution is poor compared to CsI or BaF2 and is not even in the same league as HPGe. However, it is better than most organic scintillators.

The NaI scintillates in the (blue/uv/don't remember) and so is coupled to a photomultiplier with a (don't know) window. The PMT acts to increase convert the scintillation light into electrons then multiply the electron current until it is large enough for us to amplify or observe.

PMT

Tube BAse, Anode, dynode outs (these also have connections for Peltier Coolers [http://en.wikipedia.org/wiki/Thermoelectric_cooling Do NOt follow this link!!!]

NIM Bin

HV Power supply for Tube Base

Spectroscopy Amplifier, Unipolar + Bipolar outs, concept of GAin

Discriminator, CFD

Coincidence, Counter Timer

Accelerator Operation and Components

2010-09-06T14:51:47Z

RichardLefferts: add Detectors and wiki-ize

;The [[Ion Source]]
:The CASE Nuclear Structure Lab ion source is a General Ionex 860A (now part of High Voltage Europa [http://www.highvolteng.com/Ion_Accelerator_Systems.html HVEE]), purchased in 1983. It is a negative ion source capable of making microAmp beams of most elements from the periodic table (exceptions include noble gases).
;The [[Tandem]]
:The CASE Nuclear Structure Lab accelerator is the FN-8 Tandem Van de Graaff built by High Voltage Engineering Corporation in 1967. It uses a pelletized charging chain to create voltages up to 8 Million Volts.
;The [[Ion Optics]]
:A variety of ion optical elements are used to steer and focus the beam.
;The [[Target Room]]
:The CASE NSL Target Room has 6 beamlines available for experiments in nuclear physics, atomic physics, condensed matter, radiation damage and Accelerator Mass Spectromtry.</li>
; The [[Detectors]]
Each experiment uses specialized detectors to count, identify and characterize the reaction products.

Return to [[Lab Manuals]]

B (p,n) C

2010-09-06T14:47:37Z

RichardLefferts: parallel other reaction

==Background==

In this experiment a proton fuses with <sup>11</sup>B nucleus then boils out a neutron to form the short lived isotope <sup>11</sup>C. We seek to identify <sup>11</sup>C by its half-life and to investigate the angular correlation of gamma-rays which we detect as a result of its decay.

==Goals==

At the completion of this experiment students will be able to:

* Describe the principles behind the production of a negative ion beam;
* Operate an inverted sputter negative ion source;
* Describe the principles of high voltage production with a Van de Graaff;
* Operate the FN-8 Tandem Van de Graaff;
* Describe the ion optics principles and devices used in a low-energy heavy ion accelerator;
* Develop and tune an ion beam to target using the accelerator facility;
* Describe the principles behind gamma ray detection;
* Use a gamma detector (NaI) and signal processing electronics (NIM based)to collect count rates of correlated photons;
* Analyze count rate versus angle to characterize the decay mode of <sup>11</sup>C;
* Analyze count rate versus time data to extract the <sup>11</sup>C half-life;
* Describe the nuclear physics meaning of their results.

==Accelerator Operation==

In order to acquire sufficiently energetic protons for this experiment, you will have to learn to create and direct a proton ion beam in the tandem accelerator. There are a number of components to the accelerator, which you will need to know the function of and how they will affect the nature of the proton beam.

===Components===

<ul>
<li><b>The [[Ion Source]]:</b> Negative H<sup>-</sup> are created here and accelerated at relatively low energies.</li>
<li><b>The [[Tandem | Tandem Accelerator]]:</b> Negative H<sup>-</sup> ions are accelerated to the center of the tandem, stripped of the electrons to create protons, and then accelerated through the rest of the tandem to a high energy.</li>
<li><b>The [[Target Room]]:</b> The high energy proton beam is directed onto an aluminum foil target, hopefully creating a nuclear fusion reaction.</li>
<li><b>The [[Detectors]]:</b> Specialized detectors are used to identify, count and characterize reaction products.</li>
</ul>

In addition to these main sections of the accelerator, you will need to be able to use the [[Ion Optics | ion optics]] in the accelerator effectively to steer and focus the beam.

===Technique===

To create <sup>11</sup>C, we will conduct a fusion evaporation reaction with a proton beam and <sup>11</sup>B target.
The literature guides us to use a proton energy of about 6 MeV. When designing a target, one should consider the effect of energy straggling and how other materials exposed to the beam (target frames, beam stops) may contribute to contamination of the measurement.

To run the experiment, we expose the <sup>11</sup>B target to the <sup>1</sup>H beam for approximately 2 half-lives of <sup>11</sup>C. We then remove the4 target to a beam-free room and use 2 sodium iodide detectors and associated electronics (NIM) to identify coincident events.

==Data Collection==

As of September 2010, we will collect data for this experiment manually! The data are simply a table of counts per unit time versus time.

==Analysis==

Ideally, one will see a simple exponential decay. The presence of contaminants has the potential to introduce other exponentials and complicate the fit.

Return to [[Lab Manuals]]

Detectors

2010-09-06T14:26:23Z

RichardLefferts: creation with some NaI info

=== 11C Identification and Measurement ===

Use 2 2" Sodium Iodide detectors. Manuafacturer is Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint-Gobain]
These detectors have thin, havar windows because they were originally intended to measure light charged particles (proton, deuteron, triton, alpha) in light fusion reactions [http://prc.aps.org/abstract/PRC/v39/i1/p128_1 Paper from 1986]

NaI was one of the first inorganic scintillators discovered (reference) and is still widely used for x-ray and gamma ray detection. It has good "stopping power" or long "radiation length", ie, good ability to stop photons. The energy resolution is poor compared to CsI or BaF2 and is not even in the same league as HPGe. However, it is better than most organic scintillators.

The NaI scintillates in the (blue/uv/don't remember) and so is coupled to a photomultiplier with a (don't know) window. The PMT acts to increase convert the scintillation light into electrons then multiply the electron current until it is large enough for us to amplify or observe.

PMT

Tube BAse, Anode, dynode outs (these also have connections for Peltier Coolers [http://en.wikipedia.org/wiki/Thermoelectric_cooling Do NOt follow this link!!!]

NIM Bin

HV Power supply for Tube Base

Spectroscopy Amplifier, Unipolar + Bipolar outs, concept of GAin

Discriminator, CFD

Coincidence, Counter Timer

B (p,n) C

2010-09-06T14:25:56Z

RichardLefferts: parallel to Al(p,n)Si page

==Background==

The shorthand for this experiment indicates the basics of the process that will take place:

<center><sup>27</sup>Al (p,n) <sup>27</sup>Si</center>

In other words, protons(p) of sufficient energy incident on an <sup>27</sup>Al target will fuse with the the nucleus and then emit a neutron(n), leaving <sup>27</sup>Si, where in both cases 27 indicates the atomic mass. This will only happen if the protons have sufficient kinetic energy to supply the difference in binding energy between <sup>27</sup>Al and <sup>27</sup>Si plus the difference between p and n masses. At the <i>neutron threshold</i> energy the neutrons leave with no kinetic energy so a detailed energy balance can be done to measure the difference in binding n or p to a <sup>26</sup>Si core.

==Goals==

At the completion of this experiment students will be able to:

* Describe the principles behind the production of a negative ion beam;
* Operate an inverted sputter negative ion source;
* Describe the principles of high voltage production with a Van de Graaff;
* Operate the FN-8 Tandem Van de Graaff;
* Describe the ion optics principles and devices used in a low-energy heavy ion accelerator;
* Develop and tune an ion beam to target using the accelerator facility;
* Describe the principles behind neutron detection;
* Use a neutron detector (at present BF3), signal processing electronics (NIM based)and DAQ (at present a PCI MCA card and software) to collect data;
* Analyze count rate versus beam energy data to extract the neutron threshold energy;
* Describe the nuclear physics meaning of their results.

==Accelerator Operation==

In order to acquire sufficiently energetic protons for this experiment, you will have to learn to create and direct a proton ion beam in the tandem accelerator. There are a number of components to the accelerator, which you will need to know the function of and how they will affect the nature of the proton beam.

===Components===

<ul>
<li><b>The [[Ion Source]]:</b> Negative H<sup>-</sup> are created here and accelerated at relatively low energies.</li>
<li><b>The [[Tandem | Tandem Accelerator]]:</b> Negative H<sup>-</sup> ions are accelerated to the center of the tandem, stripped of the electrons to create protons, and then accelerated through the rest of the tandem to a high energy.</li>
<li><b>The [[Target Room]]:</b> The high energy proton beam is directed onto an aluminum foil target, hopefully creating a nuclear fusion reaction.</li>
<li><b>The [[Detectors]]:</b> Specialized detectors are used to identify, count and characterize reaction products.</li>
</ul>

In addition to these main sections of the accelerator, you will need to be able to use the [[Ion Optics | ion optics]] in the accelerator effectively to steer and focus the beam.

===Technique===

To find the neutron threshold, we measure the neutron yield as a function of proton energy. Ideally, one would observe a small but gradually (linearly?) increasing background until one reached the threshold for fusion of the proton followed by evaporation of the neutron. This yield will then increase (linearly) with beam energy. One can fit the data to two lines and extract their intercept.

The literature guides us to want to scan the range of 5-7 MeV of proton energy. Step size should be chosen with regard to desired precision, target thickness and, of course, time constraints. When choosing how to scan over the energy range, one should consider beam activation of apertures in the beampipe and other sources of background neutrons. Placing the detector at 0<sup>o</sup> in the lab frame is best because the low energy neutrons emitted just at threshold are very forward focussed.

==Data Collection==

As of September 2010, we will collect data for this experiment by taking timed energy spectra of the output of a [[Detectors | Boron Trifluoride] detector using an Ortec PCI Multichannel Analyzer (MCA) card and the Ortec software package Maestro. One can use Maestro to implement cuts, background subtraction and integration of the spectra or export the data as comma-separated value (CSV) files for use in other software.

==Analysis==

Ideally, one would observe a small but gradually (linearly?) increasing background of neutron yield until one reaches the threshold for fusion of the proton followed by evaporation of the neutron. This yield will then increase (linearly) with beam energy. One can fit the data to two lines and extract their intercept.

Return to [[Lab Manuals]]

Al (p,n) Si

2010-09-06T14:23:57Z

RichardLefferts: added goals and a few sentences

Lab Manuals

2010-09-06T13:54:50Z

RichardLefferts: added plan for lab sessions

=<center>PHY 415/515: Senior/Graduate Laboratory</center>=

<div align="center" width="50%">The CASE Nuclear Structure Lab is offering 2 experiments to students in Phy 445/515. In each instance students will learn to operate the Tandem accelerator facility to do a classic nuclear physics experiment.</div>

{| cellspacing="3" align="center"
|- valign="top"
|width="10%" style="border: 1px solid #aaa; color: #000; background-color: #eeeefe"|
<div style="padding: .4em .9em .9em">

== [[Al (p,n) Si | <sup>27</sup>Al (p,n) <sup>27</sup>Si]] ==

An investigation of the neutron threshold for the <sup>27</sup>Al (p,n) <sup>27</sup>Si nuclear fusion reaction. Determination of a neutron threshold gives information on the isospin (p versus n) dependence of the nuclear force.
</div>

|width="10%" style="border: 1px solid #CAC7B6; color: #000; background-color: #eeeefe"|
<div style="padding: .4em .9em .9em">

==[[B (p,n) C | <sup>11</sup>B (p,n) <sup>11</sup>C]]==

Creation of <sup>11</sup>C from <sup>11</sup>B through the use of a proton beam, and study of the gamma rays produced by positron emission in <sup>11</sup>C. This isotope is of interest for its use in Positron Emission Tomography (PET).

</div>
|}

==Common Schedule==

Doing PHY 445/515 experiments in the CASE NSL requires a more rigid plan than most PHY 445/515 because there is so much to learn and because the accelerator must be shared with other students. A rough plan for either experiment is as follows:

; Session One
: Find the Van de Graaff building, meet the accelerator staff, take an introductory tour, take a lecture on ion source operation;
; Session Two
: Get introduced to LabView basics and the CASE NSL control system, develop and tune an ion source beam, begin work with detection electronics;
; Session Three
: Work with detector and electronics, take a lecture on Van de Graaff operation, bring Tandem VdG to a desired voltage;
; Session Four
: Work with target station and vacuum to install target, take a brief lecture on ion optics of our system, tune a beam to target with help;
; Session Five
: Develop and tune a beam to target with supervision (that's different than help ...), make a preliminary measurement;
; Session Six
: Conduct your experiment.
; Session Seven
: Repeat or refine your measurement as required.
; Session Eight
: Repeat or refine your measurement, investigate systematic errors, begin data reduction.

==More Information==

<ul>
<li>[[Accelerator Operation and Components]]</li>
<li>[[Radiation Safety]]</li>
<li>[[Phy 445/515 Calendar]]</li>
</ul>

Even more information on PHY 445 and PHY 515 is available on Stony Brook University [http://blackboard.stonybrook.edu/ Blackboard]

Al (p,n) Si

2010-09-06T13:27:40Z

RichardLefferts:

Accelerator Operation and Components

2010-09-06T13:25:24Z

RichardLefferts:

<ul>
<li>The [[Ion Source]]</li>
The CASE Nuclear Structure Lab ion source is a General Ionex 860A (now part of High Voltage Europa [http://www.highvolteng.com/Ion_Accelerator_Systems.html HVEE]), purchased in 1983. It is a negative ion source capable of making microAmp beams of most elements from the periodic table (exceptions include noble gases).
<li>The [[Tandem]]</li>
The CASE Nuclear Structure Lab accelerator is the FN-8 Tandem Van de Graaff built by High Voltage Engineering Corporation in 1967. It uses a pelletized charging chain to create voltages up to 8 Million Volts.
<li>The [[Ion Optics]]</li>
A variety of ion optical elements are used to steer and focus the beam.
<li>The [[Target Room]]</li>
The CASE NSL Target Room has 6 beamlines available for experiments in nuclear physics, atomic physics, condensed matter, radiation damage and Accelerator Mass Spectromtry.</li>
</ul>

Return to [[Lab Manuals]]

Lab Manuals

2010-09-06T13:24:34Z

RichardLefferts: