Cascade summing effects in close geometry gamma-ray spectrometry

Johnston, P, Hult, M and Gasparro, J 2006, 'Cascade summing effects in close geometry gamma-ray spectrometry', Applied Radiation and Isotopes, vol. 64, no. 10-11, pp. 1323-1328.


Document type: Journal Article
Collection: Journal Articles

Title Cascade summing effects in close geometry gamma-ray spectrometry
Author(s) Johnston, P
Hult, M
Gasparro, J
Year 2006
Journal name Applied Radiation and Isotopes
Volume number 64
Issue number 10-11
Start page 1323
End page 1328
Total pages 5
Publisher Pergamon
Abstract Low-level gamma-ray spectrometry, particularly in underground laboratories, is used to measure radioactivity in diverse close geometries, often placing samples directly on the detector which favours strong cascade summing effects. Monte-Carlo modelling of the efficiency is extended to cascade summing effects from complete decay sequences including positron emitting radionuclides. The effect of geometrical uncertainties on the overall uncertainty is presented. The results reinforce the need for radiography of the detector and inclusion of the detector shielding in the model.
Subject Nuclear Physics
DOI - identifier 10.1016/j.apradiso.2006.02.038
Copyright notice © 2006 Elsevier
ISSN 0969-8043
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