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Nondestructive assay of spent nuclear fuel with gamma-ray spectroscopy
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. (Forskargruppen för Kärnbränslediagnostik och safeguards)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. (Forskargruppen för Kärnbränslediagnostik och safeguards)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Neutron Research. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. (Forskargruppen för Kärnbränslediagnostik och safeguards)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, Nuclear Physics. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics. (Forskargruppen för Kärnbränslediagnostik och safeguards)
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2006 (English)In: Annals of Nuclear Energy, ISSN 0306-4549, Vol. 33, no 5, 427-438 p.Article in journal (Refereed) Published
Abstract [en]

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%.

Place, publisher, year, edition, pages
2006. Vol. 33, no 5, 427-438 p.
National Category
Subatomic Physics
Research subject
Applied Nuclear Physics; Physics with specialization in Applied Nuclear Physics
Identifiers
URN: urn:nbn:se:uu:diva-77666OAI: oai:DiVA.org:uu-77666DiVA: diva2:105578
Available from: 2007-02-13 Created: 2007-02-13 Last updated: 2012-03-09

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http://dx.doi.org/10.1016/j.anucene.2005.12.005

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Willman, ChristoferHåkansson, AneOsifo, OtasowieBäcklin, AndersJacobsson Svärd, Staffan

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Willman, ChristoferHåkansson, AneOsifo, OtasowieBäcklin, AndersJacobsson Svärd, Staffan
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Subatomic Physics

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