Dosimetric characterization of elongated brachytherapy sources using Monte Carlo methods

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bannon_elizabeth_a_201005_mast.pdf (730.69 KB)
Author(s)
Bannon, Elizabeth
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Rivard, Mark J.
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http://hdl.handle.net/1853/33923
Abstract
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.
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2010-04-07
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