Authors:
J. St-Pierre Ecole Polytechnique P.O. Box 6079 Downtown, Montreal Quebec H3C 3A7 Canada

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G. Kennedy Ecole Polytechnique P.O. Box 6079 Downtown, Montreal Quebec H3C 3A7 Canada

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Abstract  

Neutron activation analysis using the single comparator method or the k0 method may be less accurate in the cases of non-1/v nuclides if irradiations are done at varying reactor temperatures. We propose a method to correct this effect, using available reactor moderator temperature readings. It was verified by the irradiation of two non-1/v nuclides, 176Lu and 151Eu. Irradiations were carried out in two irradiation sites at two reactor powers and at estimated neutron temperatures varying from 18 to 46 °C. In all cases the measured activities showed a variation with temperature consistent with published tables of the variation of the Westcott g-factor. The method should be accurate to 1% for most small reactors and eliminates the need to irradiate temperature monitors.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)