Comprehensive Monte-Carlo Simulator for Industrial Gamma Ray Radiography in Non-destructive Testing

Speaker:
Kabir, Mostafa; Amirkabir University of Technology; Iran

Authors:
Afarideh, H.; Amirkabir University of Technology (Tehran Polytechnic); Iran
Kabir, M.; Amirkabir University of Technology (Tehran Polytechnic); Iran
Movafeghi, A.; Nuclear Science and Technology Research Institute, Atomic Energy Organization of Iran; Iran
Rokrok, B.; Nuclear Science and Technology Research Institute, Atomic Energy Organization of Iran; Iran

ID: ECNDT-0612-2018
Session: X-ray & CT modeling 2
Room: G3
Date: 2018-06-14
Time: 11:50 - 12:10

In the present paper, a monte-carlo simulator for conventional industrial radiography has been introduced. Acquiring the acceptable precise simulated radiographic image respecting of the object geometrical shape, atomic number, density etc. was the main purpose of this study. Although there are some commercial softwares available for this purpose, all of these softwares have been using analytical or finite element methods for simulating the radiographic images. They don’t influence the complicated random behavior of Gamma ray photons due to not affecting the photons’ cross-sections with different matters in different energies. Co-60, Se-70, Cs-137 and Ir-192 are the most usable radioisotopes which simulated in our simulator. We have utilized a monte-carlo code MCNPX2.7e for transporting Gamma ray photons. Our comprehensive monte-carlo simulator can get radioisotopes’ energy distribution and then pass photons through geometrical shapes. Results showed our technique for simulating radiographic testing can strongly be accurate even for exact simulations. Unlike the other models, our monte-carlo modeling observations showed it is able to measure and able to map the scattered photons as well as primary ones. It is very crucial if we want to investigate the effective parameters on our radiographic testing in order to optimize them before implementing experimental set-up.