Mapa dosimétrico de la planta de irradiación gamma del Servicio Geológico Colombiano a partir de herramientas de simulación Monte Carlo

Abstract

The first gamma radiation facility in Colombia began operating in 1972. The facility, in charge of the Colombian Geological Service, has been used for research purposes and industrial applications that improve the quality conditions of products in various entities and companies. The control, safety and operation of the plant depend on the calibration of the dosimetric system that is performed inside the irradiation room; for this reason, in this document a dose mapping was performed in which the dose rate was established at different points of the radioactive facility, using a toolkit derived from Geant4, which maintains the main components of Monte Carlo and makes the language in terms of parameters, which makes the construction of a physical environment related to the transport of particles more comprehensible. In the dose mapping, despite the lack of clarity in the records of several variables in the experiment performed, it was determined that the comparison of the simulated dose rate and the dose rate recorded by the gamma plant employees presents coincidences in terms of the trend of the values obtained, keeping 81.25% of the data below 15% error, which poses an acceptable approximation to meet the objective of this paper.