Faculty Mentor(s)

Dr. Kyuil Cho, Physics; Dr. Paul DeYoung, Physics; Dr. Andrew Bunnell, Physics

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Particle accelerators are useful pieces of technology for a variety of experiments, from testing for contaminants in the water supply to testing the durability of materials exposed to radiation. In order to measure the amount of radiation being delivered by the accelerator’s beam, a Faraday cup is used. This tool can measure the amount of ions impacting a surface by measuring the current generated by the incident ions; however, they often overestimate current due to the emission of secondary electrons. This is an inherent property of the Faraday cup, but we still want an accurate measurement of the beam current. So we set out to calibrate the cup. Our research explored the use of the properties of Rutherford backscattering spectroscopy (RBS) and software known as SIMNRA to calibrate the Faraday cup of ion beams.


This research is supported by the Department of Physics and the Dean of Natural and Applied Sciences.

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