Monte Carlo simulation investigation on the minitype reference radiation employed for the calibration of gamma ray dose or dose rate meters

Minitype reference radiation (MRR) based on a cesium-137 (Cs-137) isotope radioactive source is a
core component for carrying out field calibration on gamma ray dose or dose rate meters. To explore
the source of scattering rays in the MRR, and their influence on dose field distribution, we
calculated the radiation field of the MRR with different shielding wall materials, different sizes
of shielding boxes, and different detectors. The investigation results provide theoretical and
technical support for better understanding the MRR, and for developing field calibration
technologies.

Source: Journal of Radiological Protection - February 15, 2018 Category: Physics Authors: Wenjie Li, Yixin Liu, Biao Wei, Peng Feng, Yang Xu and Benjiang Mao Source Type: research