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Study the sensitivity of dose calculation in prism treatment planning system using Monte Carlo simulation of 6 MeV electron beam

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Prism is a non-commercial Radiotherapy Treatment Planning System (RTPS) develop by Ira J. Kalet from Washington University. Inhomogeneity factor is included in Prism TPS dose calculation. The aim of this study is to investigate the sensitivity of dose calculation on Prism using Monte Carlo simulation. Phase space source from head linear accelerator (LINAC) for Monte Carlo simulation is implemented. To achieve this aim, Prism dose calculation is compared with EGSnrc Monte Carlo simulation. Percentage depth dose (PDD) and R50 from both calculations are observed. BEAMnrc is simulated electron transport in LINAC head and produced phase space file. This file is used as DOSXYZnrc input to simulated electron transport in phantom. This study is started with commissioning process in water phantom. Commissioning process is adjusted Monte Carlo simulation with Prism RTPS. Commissioning result is used for study of inhomogeneity phantom. Physical parameters of inhomogeneity phantom that varied in this study are: density, location and thickness of tissue. Commissioning result is shown that optimum energy of Monte Carlo simulation for 6 MeV electron beam is 6.8 MeV. This commissioning is used R50 and PDD with Practical length (Rp) as references. From inhomogeneity study, the average deviation for all case on interest region is below 5 %. Based on ICRU recommendations, Prism has good ability to calculate the radiation dose in inhomogeneity tissue.

Original languageEnglish
Title of host publication4th International Conference on Advances in Nuclear Science and Engineering, ICANSE 2013
EditorsZaki Su'ud, Abdul Waris
PublisherAmerican Institute of Physics Inc.
Pages213-223
Number of pages11
ISBN (Electronic)9780735412514
DOIs
Publication statusPublished - 2014
Event4th International Conference on Advances in Nuclear Science and Engineering, ICANSE 2013 - Denpasar, Bali, Indonesia
Duration: 16 Sept 201319 Sept 2013

Publication series

NameAIP Conference Proceedings
Volume1615
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference on Advances in Nuclear Science and Engineering, ICANSE 2013
Country/TerritoryIndonesia
CityDenpasar, Bali
Period16/09/1319/09/13

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