Inserção de imagem de Tomografia Computadorizada no código monte carlo MCNP

Abstract

The appearance of computer tomography (CT) represented a great advance in the imaging diagnosis, since the image formed by the same was three-dimensional and presented more details when compared to conventional radiography. With the increasing use of radiation for treatments and diagnoses, a greater control of radiation doses received by patients and occupationally exposed individuals (OEI) became necessary. OEI's use dosimeters to measure the doses that are exposed. For the patients, due to the impossibility of measuring the dose directly, it is necessary to use simulations of the interaction of radiation with matter in order to avoid tissue reactions or stochastic effects. The Monte Carlo simulation perfectly performs this function, but there is a need to transform the TC image into a file that will be read by MCNP. In this work we performed the conversion of computed tomography images to MCNP input files, in addition to developing an algorithm to make the conversion faster and more efficient.