Validation of Monte Carlo calculated surface doses for megavoltage photon beams

Published: Jan 4, 2005
Abstract
Recent work has shown that there is significant uncertainty in measuring build-up doses in mega-voltage photon beams especially at high energies. In this present investigation we used a phantom-embedded extrapolation chamber (PEEC) made of Solid Water to validate Monte Carlo (MC)-calculated doses in the dose build-up region for 6 and 18 MV x-ray beams. The study showed that the percentage depth ionizations (PDIs) obtained from measurements are...
Paper Details
Title
Validation of Monte Carlo calculated surface doses for megavoltage photon beams
Published Date
Jan 4, 2005
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