POSTIRRADIATION RELEASE OF Xe$sup 133$ FROM OXIDE CERAMICS
Technical Report
·
OSTI ID:4096776
Postirradiation measurements were made at 700 to 1500 deg C of the release of Xe/sup 133/ recoiled into alpha Al/sub 2/O/sub 3/, BeO, MgO, and ZrO/ sub 2/ during neutron irradiation in contact with UO/sub 2/ powder. The release pattern from most of the specimens was identical: a high rate of loss of Xe/sup 133/ for several minutes followed by a slower release for which the cumulative fractional release was linear with the square root of the heating time. Diffusion coefficients for Xe/sup 133/ were calculated from the slope of release curve following the burst. The magnitude of the diffusion coefficients was nearly the same for all of the materials studied, and the activation energy for Xe/sup 133/ release from alpha Al/sub 2/O/sub 3/ above 1000 deg C was found to be 64 kcal per g mole. The xenon release behavior was compared to anion diffusion in these oxides. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, Ohio
- DOE Contract Number:
- W-7405-ENG-92
- NSA Number:
- NSA-18-008712
- OSTI ID:
- 4096776
- Report Number(s):
- BMI-1651
- Country of Publication:
- United States
- Language:
- English
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