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

共 2 条

[1] Voxel-based point kernel method for dose rate assessment of non-uniform activity and self-shielding sources in nuclear facility decommissioning
Yang, Li-qun
Liu, Yong-kuo
Peng, Min-jun
Ayodeji, Abiodun
Chao, Nan
RADIATION PHYSICS AND CHEMISTRY, 2019, 164
[2] A simple method for correcting the neutron self-shielding effect of matrix and improving the analytical response in prompt gamma-ray neutron activation analysis
Sudarshan, K
Tripathi, R
Nair, AGC
Acharya, R
Reddy, AVR
Goswami, A
ANALYTICA CHIMICA ACTA, 2005, 549 (1-2) : 205 - 211

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