Abstract
High energy photon therapy beam from the 50 MV racetrack microtron has been evaluated using the Monte Carlo code MCNP4B. The spatial and energy distribution of photons, radial and depth dose distributions in the phantom are calculated for the stationary and scanned photon beams from different targets. The calculated dose distributions are compared to the experimental data using a silicon diode detector. Measured and calculated depth-dose distributions are in fairly good agreement, within 2-3% for the positions in the range 2-30 cm in the phantom, whereas the larger discrepancies up to 10% are observed in the dose build-up region. For the stationary beams the differences in the calculated and measured radial dose distributions axe about 2-10%.
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© 2001 Springer-Verlag Berlin Heidelberg
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Gudowska, I., Sorcini, B., Svensson, R. (2001). Evaluation of a 50-MV Photon Therapy Beam from a Racetrack Microtron Using MCNP4B Monte Carlo Code. In: Kling, A., Baräo, F.J.C., Nakagawa, M., Távora, L., Vaz, P. (eds) Advanced Monte Carlo for Radiation Physics, Particle Transport Simulation and Applications. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-18211-2_50
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DOI: https://doi.org/10.1007/978-3-642-18211-2_50
Publisher Name: Springer, Berlin, Heidelberg
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