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Advanced fuel assembly characterization capabilities based on gamma tomography at the halden boiling water reactor
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Applied Nuclear Physics.
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2012 (English)In: Proc. Int. Conf. on Advances in Reactor Physics, 2012, 3478-3489 p.Conference paper (Refereed)
Abstract [en]

Characterization of individual fuel rods using gamma spectroscopy is a standard part of the Post Irradiation Examinations performed on experimental fuel at the Halden Boiling Water Reactor. However, due to handling and radiological safety concerns, these measurements are presently carried out only at the end of life of the fuel, and not earlier than several days or weeks after its removal from the reactor core. In order to enhance the fuel characterization capabilities at the Halden facilities, a gamma tomography measurement system is now being constructed, capable of characterizing fuel assemblies on a rod-by-rod basis in a more timely and efficient manner. Gamma tomography for measuring nuclear fuel is based on gamma spectroscopy measurements and tomographic reconstruction techniques. The technique, previously demonstrated on irradiated commercial fuel assemblies, is capable of determining rod-by-rod information without the need to dismantle the fuel. The new gamma tomography system will be stationed close to the Halden reactor in order to limit the need for fuel transport, and it will significantly reduce the time required to perform fuel characterization measurements. Furthermore, it will allow rod-by-rod fuel characterization to occur between irradiation cycles, thus allowing for measurement of experimental fuel repeatedly during its irradiation lifetime. The development of the gamma tomography measurement system is a joint project between the Institute for Energy Technology - OECD Halden Reactor Project, Westinghouse (Sweden), and Uppsala University.

Place, publisher, year, edition, pages
2012. 3478-3489 p.
, International Conference on the Physics of Reactors 2012, PHYSOR 2012: Advances in Reactor Physics, 4
Keyword [en]
Gamma spectroscopy, Nuclear fuel, Tomography, Advanced fuels, Commercial fuels, End of lives, Energy technologies, Fuel assembly, Fuel characterization, Fuel rods, Gamma tomography, Joint projects, Measurement system, Post irradiation examinations, Radiological safety, Reactor projects, Tomographic reconstruction, Uppsala University, Westinghouse, Boiling water reactors, Irradiation, Measurements, Nuclear fuels, Radiology, Ultraviolet spectroscopy, Fuels
National Category
Natural Sciences
URN: urn:nbn:se:uu:diva-193922ISBN: 9781622763894OAI: oai:DiVA.org:uu-193922DiVA: diva2:603874
International Conference on the Physics of Reactors 2012: Advances in Reactor Physics, PHYSOR 2012, 15 April 2012 through 20 April 2012, Knoxville, TN
Available from: 2013-02-07 Created: 2013-02-06 Last updated: 2013-02-07Bibliographically approved

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Svärd, Staffan Jacobsson
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