Calculation of Radiation Damage for Simulation of Neutron Radiation Damage by Ion Irradiation and Development AMTRACK Program.

Mohammadi, A; Hamidi, S; Asadi Asadabad, M

doi:10.29252/ijpr.18.2.251

Calculation of Radiation Damage for Simulation of Neutron Radiation Damage by Ion Irradiation and Development AMTRACK Program.

Authors

A Mohammadi

S Hamidi

M Asadi Asadabad

https://doi.org/10.29252/ijpr.18.2.251

Abstract

One of the most important results of neutron irradiation on targets is that atoms are displaced from their lattice sites after that a nuclear reaction. The neutron irradiation damage is often simulated by using light/heavy ion irradiations, which prepare flexible irradiation conditions. The knowledge of primary knock-on atoms (PKA) and point defect energy distribution is the first step to simulate radiation damage induced by neutrons and also calculation of the amount of damage in “displacements per atom” (DPA) and damage profile in target is another purpose. In this study the MCNP code and SRIM code have been used to simulate the interaction of neutrons and energetic ions with materials then a new program was written by MATLAB software, AMTRACK, which analyzed PKA and point defect specifications. Finally the comparison of fraction of recoils spectra as well as weighted recoil spectra induced by ions/neutrons leads to determine best ions and its energy to simulate damage in reactors and our final goal is to be able to predict the amount and profile of radiation damage by best ion and neutron spectrum.

Keywords

Radiation damage

defect production

Primary recoil spectra

weighted recoil spectra

MCNP code

SRIM code

AMTRACK program

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