PHY 415/515: Senior/Graduate Laboratory
An investigation of the neutron threshold for the 27Al (p,n) 27Si nuclear fusion reaction. Determination of a neutron threshold gives information on the isospin (p versus n) dependence of the nuclear force.
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.
Even more information on PHY 445 and PHY 515 is available on Stony Brook University Blackboard