Calculation of fast neutron removal cross-sections for some compounds and materials

被引：180

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 / 02期

关键词：

D O I：

10.1016/j.anucene.2009.10.022

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：

Shielding materials usually contain some well-known compounds or substances. Thus, construction of a database for the effective fast neutrons mass removal cross-sections, Sigma(R)/rho (cm(2) g(-1)), for these compounds and materials will facilitate the shielding design problem. In this work, building of such database for different compounds and materials which have been widely used in shielding media has been suggested. Furthermore, a short version of this database was given. It includes the calculated values of Sigma(R)/rho (cm(2) g(-1)) and Sigma(R) (cm(-1)) for some common compounds found in concrete, Portland cement clinker, iron ores and polymers. By using this database, a quick short hand calculation method for rough estimation of macroscopic removal cross-section Sigma(R) for these materials can be developed. It is interesting to note that considerable removal cross-section values for PVC, PP, PA6, PA6/6, PA6/10, PA11 and PPS polymers were noticed. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：218 / 222

页数：5

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