Type of Document	Master's Thesis
Author	Huang, Kai
URN	etd-1113102-193925
Title	Characterization of an in Vivo Diode Dosimetry System for Clinical Use
Degree	Master of Science (M.S.)
Department	Physics and Astronomy
Advisory Committee	Advisor Name Title Oscar Hidalgo-Salvatierra Committee Chair Erno Sajo Committee Member Mark L. Williams Committee Member Sheldon Johnson Committee Member William S. Bice Committee Member
Keywords	in vivo dosimetry radiotherapy diode
Date of Defense	2002-11-11
Availability	unrestricted
Abstract An in vivo dosimetry system that uses p-type semiconductor diodes with buildup caps was characterized for clinical use. The dose per pulse dependence was investigated. This was done by altering the SSD, field size and wedge for photons, and by altering SSD and cone size for electrons. The off-axis correction and effect of changing repetition rate were also investigated. A model was made to fit the measured diode correction factors.
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