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Detection of Dislocated Individual Fuel Rods in a Nuclear Fuel Assembly using Tomographic Measurements
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.ORCID iD: 0000-0003-3411-7058
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences. (Nuclear fission diagnostics and safeguards)ORCID iD: 0000-0002-3136-5665
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences. Uppsala University.
1998 (English)Report (Other academic)
Abstract [en]

A method is suggested for identifying and quantifying possible dislocations of individual fuel rods in an irradiated nuclear fuel assembly. The method is designed for application in tomographic measurements of nuclear fuel assemblies. The source distribution of gamma radiation is reconstructed using a tomographic algorithm, in which the pixel pattern is adapted to the assembly geometry. By comparing the reconstructed source concentration in opposite parts of each fuel rod in the assembly, quantitative information may be obtained about possible dislocations.

Theoretical considerations have been applied and data from simulations of a nuclear fuel assembly with single dislocated rods have been used in tomographic reconstructions. The investigations indicate that the method should be applicable for identification of dislocations larger than a few tenths of a mm.

Place, publisher, year, edition, pages
Uppsala: Uppsala universitet, 1998. , p. 17
Keywords [en]
Tomography, Nuclear fuel, Dislocation
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-355510OAI: oai:DiVA.org:uu-355510DiVA, id: diva2:1229407
Available from: 2018-06-29 Created: 2018-06-29 Last updated: 2018-07-02Bibliographically approved

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Jacobsson Svärd, StaffanHåkansson, AneJansson, PeterBäcklin, Anders
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