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- Title
Fission yield measurements from highly enriched uranium irradiated inside a boron carbide capsule.
- Authors
Metz, L.; Friese, J.; Finn, E.; Greenwood, L.; Kephart, R.; Hines, C.; King, M.; Henry, K.; Wall, D.
- Abstract
A boron carbide capsule was previously designed and tested by Pacific Northwest National Laboratory (PNNL) and Washington State University (WSU) for spectral-tailoring in mixed spectrum reactors. The presented work used this BC capsule to create a fission product sample from the irradiation of highly enriched uranium (HEU) with a fast fission neutron spectrum. An HEU foil was irradiated inside of the capsule in WSU's 1 MW TRIGA reactor at full power for 200 min to produce 5.8 × 10 fissions. After 3 days of cooling, the sample was shipped to PNNL for radiochemical separations and analysis by gamma and beta spectroscopy. Fission yields for products were calculated from the radiometric measurements and compared to measurements from thermal neutron induced fission (analyzed in parallel with the non-thermal sample at PNNL) and published evaluated fast-pooled and thermal nuclear data. Reactor dosimetry measurements were also completed to fully characterize the neutron spectrum and total fluence of the irradiation.
- Subjects
UNITED States; FISSION products; BORON carbides; THERMAL dosimetry; NUCLEAR reactors; RADIOCHEMISTRY; SEPARATION (Technology); URANIUM isotopes; RADIOISOTOPES; PACIFIC Northwest National Laboratory (U.S.)
- Publication
Journal of Radioanalytical & Nuclear Chemistry, 2013, Vol 296, Issue 2, p763
- ISSN
0236-5731
- Publication type
Article
- DOI
10.1007/s10967-012-2089-z