Here are some posters presented by students who have worked for me the past few years on a NSF-REU research grant.
My students studied the development of low cost "cheap" radiation detectors for radioisotopes.
The purpose of this experiment was to develop an inexpensive detector, for radioactive isotopes, that could be used in fieldwork. This experiment required the use of a thin, long, inexpensive, plastic scintillator fiber, cardboard tube, aluminum foil, multi-channel analyzer, voltage source, and a computer. The sources used for the experiment were Sr-90, Tl-204, Cs-137 and Co-60 allowing for studies of both gamma and beta radiation. These source types are the most prevalent in the biomedical and chemical fields. Through this process a simulation of the apparatus was designed in a Monte Carlo program using C++. Initially the scintillator cable was placed into a dark box through which readings were taken, to determine the attenuation of light in different positions on the cable. This attenuation curve was used, in the Monte Carlo program, to simulate the experiments and account for the attenuation of light as it propagates through the cable when it is spiraled around the cardboard tube. The cable was then tested in a spiral configuration wrapped around a tube. Small radioisotope samples were passed through the center of the tube, allowing detection of the source by the cable. Experimental and Monte Carlo results are compared and the sensitivity of the detector, to source type and location, are reported.
Janet Sanford presented work from the summer of 2005.
She presented at,
o Radiation Detection Multi Channel Analyzer and a Phototube: The study of a flat panel scintillator Janet Sanford, Chris George, Thomas Dooling
o October, 2005 - Society of Physics Students Zone 5 Meeting- UNCP
o April, 2006 -N
-National Conference on Undergraduate Research (NCUR 20)At UNC Ashville (This was a national peer reviewed conference!)
Maureen Sikes and Natasha McNair carried out preliminary work in the summer of 2004
They presented at,
November, 2004SERMACS (Southeastern Regional Meeting of the American Chemical Society)A Monte Carlo Simulation of Energy Deposited in Scinti-Safe Plus 50% by a Charged ParticleMaureen J. Sikes ,Natasha McNair, Tom Dooling(Advisor)
October, 2004Society of Physics Students Zone 5 MeetingA Monte Carlo Simulation of Energy Deposited in Scinti-Safe Plus 50% by a Charged ParticleMaureen J. Sikes, Natasha McNair, Tom Dooling(Advisor)
October, 2004Society of Physics Students Zone 5 MeetingThe Detection of Radioactive Decay Products in Liquid Scintillator
Maureen's Presentation is here.
and Natahsa's here.