STUDY ON THE LOW ENERGY AREA OF THE GAMMA SPECTROMETRY USING THE MCNP4C2 CODE

Abstract

The MCNP4C2 (Monte Carlo N-Particle, version 4C2) code is one of simulation tools that are reliable, use the Monte Carlo method to simulate the transport of neutron, photon and electron in matter. In recent years, there were many scientific paper proving the remarkable agreement between experimental and calculation gamma spectra at the high energy area (greater than 300 keV). However, at the low energy area (less than 300 keV), the MCNP4C2 code based calculation and the experimental results were still different. In this work, some reasons from selecting the input parameters and setting up  the experiment as well were presented to explain the difference between experimental and calculation gamma spectra at the low energy area.