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Nondestructive assay of spent nuclear fuel with gamma-ray spectroscopy
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- Willman, Christofer (author)
- Uppsala universitet,Institutionen för kärn- och partikelfysik,Kärnfysik,Forskargruppen för Kärnbränslediagnostik och safeguards
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- Håkansson, Ane (author)
- Uppsala universitet,Institutionen för kärn- och partikelfysik,Institutionen för neutronforskning,Kärnfysik,Tillämpad kärnfysik,Forskargruppen för Kärnbränslediagnostik och safeguards
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- Osifo, Otasowie (author)
- Uppsala universitet,Institutionen för kärn- och partikelfysik,Institutionen för neutronforskning,Kärnfysik,Forskargruppen för Kärnbränslediagnostik och safeguards
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- (creator_code:org_t)
- 2006
- 2006
- English.
- In: Annals of Nuclear Energy. - 0306-4549. ; 33:5, s. 427-438
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- An important issue in nuclear safeguards is to verify operator-declared data of spent nuclear fuel. Various techniques have therefore been assigned for this purpose. A nondestructive approach is to measure the gamma radiation from spent nuclear fuel assemblies. Using this technique, parameters such as burnup and cooling time can be calculated or verified. In this paper, we propose the utilization of gamma rays from 137Cs, 134Cs and 154Eu to determine the consistency of operator-declared information. Specifically, we have investigated to what extent irradiation histories can be verified. Computer simulations were used in order to determine limits for detecting small deviations from declared data. In addition, the technique has been experimentally demonstrated on 12 PWR fuel assemblies. A technique for determining burnup and cooling time for fuel assemblies where no operator-declared information is available is also presented. In such a case, the burnup could be determined with 1.6% relative standard deviation and the cooling time with 1.5%.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- Applied Nuclear Physics
- Tillämpad kärnfysik
- Fysik med inriktning mot tillämpad kärnfysik
- Physics with specialization in Applied Nuclear Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Uppsala University
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