Difference between revisions of "Summer 2010 Projects"

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(New page: == Summer 2010 Projects == === 11C Identification and Measurement === Use 2 2" Sodium Iodide detectors. Manuafacturer is Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint...)
 
 
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== Summer 2010 Projects ==
 
== Summer 2010 Projects ==
  
=== 11C Identification and Measurement ===
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During the summer of 2010 the CASE NSL team worked on several projects:
  
Use 2 2" Sodium Iodide detectors. Manuafacturer is Bicron, now part of [http://www.detectors.saint-gobain.com/ Saint-Gobain]
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* Design and construction of an Ion Source Test Stand  (Simon Freedman, REU from IIT)
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]
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* Mechanical design of a sample changing inverted sputtering negative ion source (Victoria Yu, REU from Rutgers)
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* Ion optical design of a sample changing inverted sputtering negative ion source (Danny Pinghero, REU from Clarkson)
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* Implementation of and lab manuals for 2 Phy 445/515 experiments (Taposhi Biswas, SBU MAT)
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* LabView based control system for the NSL accelerator complex (Greg Wille, SBU MSI)
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* Design and implementation of the database for the CASE AMS facility (Will Lunden, SBU student)
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* Stochastic variation in customer payment assignment for mid-day coffee (Rich Lefferts, Andrzej Lipski, CASE staff)
  
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.
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Truth be told, everybody worked a bit on everything. Except that only Rich and Andrzej gambled over coffee.  
  
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.
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You can learn more about what we accomplished at:
  
PMT
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* The Stony Brook Dept. of Physics and Astronomy Research Experience for Undergraduate [http://www.stonybrook.edu/ureca/physicsreu.htm (REU)] site has abstracts of our students' final presentations.
 
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* We ran a one week [[Workshop | Workshop2010]] for high school teachers and students
Tube BAse, Anode, dynode outs (these also have connections for Peltier Coolers [http://en.wikipedia.org/wiki/Thermoelectric_cooling  Do NOt follow this link!!!]
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NIM Bin
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HV Power supply for Tube Base
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Spectroscopy Amplifier, Unipolar  + Bipolar outs, concept of GAin
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Discriminator, CFD
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Coincidence, Counter Timer
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Latest revision as of 09:38, 27 August 2010

Summer 2010 Projects

During the summer of 2010 the CASE NSL team worked on several projects:

  • Design and construction of an Ion Source Test Stand (Simon Freedman, REU from IIT)
  • Mechanical design of a sample changing inverted sputtering negative ion source (Victoria Yu, REU from Rutgers)
  • Ion optical design of a sample changing inverted sputtering negative ion source (Danny Pinghero, REU from Clarkson)
  • Implementation of and lab manuals for 2 Phy 445/515 experiments (Taposhi Biswas, SBU MAT)
  • LabView based control system for the NSL accelerator complex (Greg Wille, SBU MSI)
  • Design and implementation of the database for the CASE AMS facility (Will Lunden, SBU student)
  • Stochastic variation in customer payment assignment for mid-day coffee (Rich Lefferts, Andrzej Lipski, CASE staff)

Truth be told, everybody worked a bit on everything. Except that only Rich and Andrzej gambled over coffee.

You can learn more about what we accomplished at:

  • The Stony Brook Dept. of Physics and Astronomy Research Experience for Undergraduate (REU) site has abstracts of our students' final presentations.
  • We ran a one week Workshop2010 for high school teachers and students