Check of the Application of the Monte Carlo Method for Spectrometry of Human Body Radiation in an Experiment on Large Animals

Abstract

This paper is devoted to an experimental check of a method for performing individual calibration of a spectrometer for human body radiation, using the Monte Carlo method, on 35–40 kg pigs. The 241Am content was measured on a low-energy γ spectrometer with a detector based on highly pure germanium. Tomographic images of pigs were used to calculate, using the MCNP4c2 program, the spectra of absorbed energy in a detector. The experimental results are reproduced with an error of less than 30% for injection of 241Am and less than 10% for 241Am introduced in a capsule.