Simulação de um acelerador LINAC 6MV para determinação da dose de profundidade e razão tecido fantoma utilizando MCNPx e EGSnrc
DOI:
https://doi.org/10.15392/bjrs.v4i2.201Keywords:
Método de Monte Carlo, Simulação computacional, Dosimetria, RadioterapiaAbstract
O objetivo deste trabalho é publicar os resultados obtidos de um exercício de intercomparação que envolve a modelagem e simulação de um feixe clínico de um acelerador linear de 6 MV em um campo 10x10 cm², utilizando dois diferentes códigos de Monte Carlo, o MCNPx e o EGSnrc. Devido ao grau de complexidade no processo de modelagem da geometria do sistema, a simulação e as respostas obtidas para os parâmetros dosimétricos, PDD20,10 e TPR20,10 foram comparadas com os dados experimentais obtidos no Instituto de Radioterapia e Megavoltagem de Minas Gerais. Os prinicpais desafios sobre a modelagem computacional do sistema foi relacionado e estão discutidos aqui, para fins didáticos na área de modelagem e simulação bem como na área de radioterapia.
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