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Journal of Applied Science & Engineering

Dhaka University Journal of Applied Science & Engineering

Issue: Vol. 4, No. 1, January 2017
Title: Calculation of the Neutron Shielding Properties of Locally Developed Ilmenite-Magnetite (I-M) Concrete

Keywords: Fast neutrons, I-M concrete, Effective removal cross section, Relaxation length

The fast neutron effective removal cross section, ΣR(cm-1), plays a significant role in determining the shielding effectiveness of any material against fast neutrons. This study has been concerned with the analytical calculation of ΣR(cm-1) of the locally developed Ilmenite-Magnetite (I-M) concrete. For comparisons, the same parameter has been calculated for other types of concretes with different densities and compositions. The calculated value of ΣR for I-M concrete is 0.09078 cm-1 and found to higher than some concretes. The relaxation length and transmission rate of fast neutrons in I-M concrete have been compared graphically with other types of concretes. The results of this study will provide some specific useful information of effective removal cross sections and half value layers of the locally developed I-M concrete and other types of concretes for practical shielding calculations.

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