An analytical approach to γ-ray self-shielding effects for radioactive bodies encountered nuclear decommissioning scenarios

被引：7

作者：

Gamage, K. A. A. ^{[1
]}

Joyce, M. J. ^{[1
]}

机构：

[1] Univ Lancaster, Dept Engn, Lancaster LA1 4YR, England

来源：

APPLIED RADIATION AND ISOTOPES | 2011年 / 69卷 / 10期

关键词：

Self-shielding; Self-absorption; Self-attenuation; Decommissioning; ABSORPTION; EFFICIENCY; CRYSTAL;

D O I：

10.1016/j.apradiso.2011.06.010

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A novel analytical approach is described that accounts for self-shielding of gamma radiation in decommissioning scenarios. The approach is developed with plutonium-239, cobalt-60 and caesium-137 as examples; stainless steel and concrete have been chosen as the media for cobalt-60 and caesium-137, respectively. The analytical methods have been compared MCNPX 2.6.0 simulations. A simple, linear correction factor relates the analytical results and the simulated estimates. This has the potential to greatly simplify the estimation of self-shielding effects in decommissioning activities. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1521 / 1532

页数：12

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