Monte Carlo Simulation of the Dose Rate Distribution of a Moroccan Panoramic Gamma Irradiator Using the MCNPX Code
Adil Aknouch, Mohammed Mouhib, Rajaa Sebihi, Abdessamad Didi, Youssef El-ouardi, Amina Boubekraoui, Abdelmajid Choukri
Abstract
Abstract Gamma irradiation technology plays a very important role in the development of agriculture, due to its various advantages, such as the inhibition of germination, the appearance of new varieties, preservation…etc. To properly control and characterize irradiation operations, the dose rate distribution in the irradiation cells must be well controlled, The Monte-Carlo method was used for experiments the high cost to map the dose rate distribution in the irradiation cell each time, and to its precise dosimetric calculation. In this study the MCNPX code was used to simulate the irradiation cell of the National Institute of Agricultural Research (NIAR) of Tangier Morocco, the validation of the latter was based on a comparative assessment between the dose rates absorbed in the area calculated by MCNPX (Gy/min) and those measured values by alanine dosimeters. The comparative results showed a good agreement between the experiment and the simulation.