Release of volatile fission products from uranium dioxide [electronic resource]
Post-irradiation anneal experiments have been used to determine the release of iodine and tellurium from lightly irradiated UO₂ samples maintained at stoichiometry. The applicability of the equivalent-sphere model of diffusion to release of fission gases has been tested. Diffusion coefficients and a...
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Online Access |
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| Corporate Authors: | , |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Berkeley, Calif. : Oak Ridge, Tenn. :
Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1983.
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| Subjects: |
| Summary: | Post-irradiation anneal experiments have been used to determine the release of iodine and tellurium from lightly irradiated UO₂ samples maintained at stoichiometry. The applicability of the equivalent-sphere model of diffusion to release of fission gases has been tested. Diffusion coefficients and activation energies have been evaluated. The diffusion coefficient of ¹³²Te at 1400°C was found to be of an order-of-magnitude larger than that of ¹³¹I. This result may be of importance for an understanding of the pellet-cladding interaction and for a better evaluation of the source term for fission-product release under accident conditions. Qualitatively, the influence of the stoichiometry on the release of ¹³³Xe, ¹³¹I, and ¹³²Te has been established. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 03/01/1983. "lbl-15222" "DE83012471" Bayen, D. |
| Physical Description: | Pages: 51 : digital, PDF file. |