High burnup irradiation testing of spherical beryllium oxide based fuel elements for a conceptual high temperature air-cooled reactor

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dc.contributor.authorHanna, GLen_AU
dc.contributor.authorReeve, KDen_AU
dc.date.accessioned2007-11-22T04:22:12Zen_AU
dc.date.accessioned2010-04-30T04:34:34Zen_AU
dc.date.available2007-11-22T04:22:12Zen_AU
dc.date.available2010-04-30T04:34:34Zen_AU
dc.date.issued1973-05en_AU
dc.description.abstractFuelled beryllium oxide spheres, with a thin layer of porous BeO separating the fuelled core from the unfuelled shell, were irradiated at 500ºC, 750ºC and 1000ºC to burnups of 13.4 to 15.6 per cent (U + Th) and fast neutron doses of 1.4 x 10 20 to 1.9 x 1020 nvt. The four spheres irradiated at 1000ºC were apparently undamaged but the shell had fractured in all those irradiated at 500ºC and 750ºC. Failure is believed to have been caused by enhanced expansion of the inner regions of the unfuelled shell arising from exposure to both fast neutrons and energetic β-particles. Further work necessary to prove a fuel element design for the proposed application is briefly outlined.en_AU
dc.identifier.citationHanna, G. L., & Reeve, K. D. (1973). High burnup irradiation testing of spherical beryllium oxide based fuel elements for a conceptual high temperature air-cooled reactor. (AAEC/E239). Lucas Heights, NSW: Australian Atomic Energy Commission.en_AU
dc.identifier.govdoc462en_AU
dc.identifier.isbn0642995680en_AU
dc.identifier.otherAAEC-E-239en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/428en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Atomic Energy Commissionen_AU
dc.subjectBeryllium oxidesen_AU
dc.subjectHTGR type reactorsen_AU
dc.subjectSpheresen_AU
dc.subjectCeramicsen_AU
dc.subjectFuel elementsen_AU
dc.subjectIrradiationen_AU
dc.subjectFission productsen_AU
dc.titleHigh burnup irradiation testing of spherical beryllium oxide based fuel elements for a conceptual high temperature air-cooled reactoren_AU
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