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

Gamage, K.A.A. and Joyce, M.J. (2011) An analytical approach to γ-ray self-shielding effects for radioactive bodies encountered nuclear decommissioning scenarios. Applied Radiation and Isotopes, 69(10), pp. 1521-1532. (doi: 10.1016/j.apradiso.2011.06.010) (PMID:21723136)

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Abstract

A novel analytical approach is described that accounts for self-shielding of γ 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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Gamage, Professor Kelum
Authors: Gamage, K.A.A., and Joyce, M.J.
College/School:College of Science and Engineering > School of Engineering
Journal Name:Applied Radiation and Isotopes
Publisher:Elsevier
ISSN:0969-8043
ISSN (Online):1872-9800
Published Online:21 June 2011

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