Article

Calculation of the different shielding properties of locally developed ilmenite-magnetite (I-M) concrete

¹ Department of Nuclear Engineering, University of Dhaka Dhaka-1000, Bangladesh.
² Bangladesh Atomic Energy Commission, Bangladesh.

^* Correspondance : fazlul.huq@du.ac.bd

Received: 28 November 2014
Accepted: 5 February 2015

Abstract

In this study the total atomic cross-section (σ_a), total electronic cross-section (σ_e), effective atomic number (Z_eff) and effective electron density (N_eff) of locally developed ilmenite-magnetite (I-M) concrete were calculated analytically for different photon energies from 1 keV to 20 MeV and compared with concretes of different densities and compositions. The effect of Z_eff on the mass attenuation coefficient (μ/ρ, σ_a, σ_e) is shown graphically. The values of σ_a, σ_e, Z_eff and N_eff of I-M concrete were found to be higher than those of the ordinary concretes and in some cases than those of heavy concretes, which proved I-M concrete’s shielding effectiveness. The results of this study will provide some useful information for a shielding material database for practical shielding calculation.