Radiation shielding of concretes containing different lime/silica ratios

被引：88
作者：
El-Khayatt, A. M. [1 ]
机构：
[1] Atom Energy Author, Nucl Res Ctr, Reactor Phys Dept, Cairo, Egypt
来源：
ANNALS OF NUCLEAR ENERGY | 2010年 / 37卷 / 07期
关键词：
Concrete; Lime/silica ratio; Removal cross-section; Photon attenuation; Shielding; ENERGY-ABSORPTION COEFFICIENTS; ATTENUATION COEFFICIENTS;
D O I：
10.1016/j.anucene.2010.03.001
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The shielding of gamma-rays and fast neutrons by concrete has been studied for concretes containing different lime/silica ratios. Calculations were carried out for six different concrete samples. The total mass attenuation coefficients (mu/rho, cm(2) g(-1)) have been computed at photon energies of 1 keV to 100 GeV using the personal computer software package WinXCom. Also the macroscopic effective fast neutron removal cross-sections (Sigma(R), cm(-1)) have been calculated using MERCSF-N program and the removal cross-section database for all required elements. The obtained results showed that the lime/silica ratio of concrete has significant and insignificant effects on mu/rho and Sigma(R) values, respectively. (C) 2010 Elsevier Ltd. All rights reserved.
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收藏
页码：991 / 995
页数：5
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