|SUBJECT:||M.S. Thesis Presentation|
|TIME:||Wednesday, March 17, 2010, 11:00 a.m.|
|TITLE:||Dosimetric Characterization of Elongated Brachytherapy Sources Using Monte Carlo Methods|
|COMMITTEE:||Dr. Mark J. Rivard, Co-Chair (Tufts Medical Center)
Dr. Chris Wang, Co-Chair (NRE/MP)
Dr. Sang Cho (NRE/MP)
Current brachytherapy treatment planning systems are unable to accurately calculate dose distributions in the vicinity of brachytherapy sources having active lengths much greater than 5 mm. While low dose-rate 137Cs sources are dosimetrically characterized using antiquated along-away tables with simple linear-linear interpolation errors in dose calculation exceeding 30% occur due to algorithm inadequacy. The method presented in this thesis permits dosimetric characterization of elongated brachytherapy sources with active lengths 0 < L < 10 cm for implementation on an FDA-approved clinical TPS. Low- and high-energy photon-emitting sources of Pd-103 and Ir-192, respectively, were examined.