The evaluation of fission gas release from spherical fuel during irradiation testing is critical to understand expected fuel performance under real reactor conditions. Online measurements of krypton and xenon fission products explain coated particle performance and contributions from graphitic matrix materials used in fuel manufacture and irradiation rig materials. Methods that are being developed to accurately evaluate fission gas release are described here together with examples of evaluations performed on irradiation tests HFR-K5, -K6, and EU1bis.

Issue Section:
Nuclear Power
Keywords:
fission products, fission reactor fuel, krypton, radiation effects, xenon
Topics:
Contamination, Fuels, Irradiation (Radiation exposure), Nuclear fission, Particulate matter, Temperature
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 by American Society of Mechanical Engineers
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