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Investigation of Algebraic Reconstruction Techniques for Tomographic Measurements on Spent Nuclear Fuel Assemblies
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Radiation Sciences.
2004 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

A non-destructive tomographic measurement technique for application on nuclear fuel assemblies has beendeveloped at the Uppsala University. Using this technique, the rod-by-rod distribution of selectedradioactive isotopes is determined experimentally.

In the present work, the numerical technique to reconstruct the activity distribution inside the fuelassemblies has been analyzed. Three iterative reconstruction algorithms have been investigated, ART(Additive Reconstruction Technique), ML (Maximum Likelihood) and ASIRT (Additive SimultaneousIterative Reconstruction Technique).

It was found that the ART algorithm is too sensitive to data points where the gamma-ray intensityis low, while ASIRT handles it in the best manner. Furthermore, ASIRT appears to be the most stablealgorithm and produces the best agreement to theoretical data.

Place, publisher, year, edition, pages
2004. , p. 41
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-307832OAI: oai:DiVA.org:uu-307832DiVA, id: diva2:1048737
Educational program
Master Programme in Physics
Supervisors
Available from: 2017-05-04 Created: 2016-11-22 Last updated: 2017-05-04Bibliographically approved

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CiteExportLink to record
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