FISSION-PRODUCT-RELEASE MEASUREMENT FROM CLAD FUEL SPECIMENS
Xe/sup 133/, Xe/sup 135/, Kr/sup 85m/, Kr/sup 87/, I/sup 131/, I/sup 133/ , and I/sup 135/ release from UO/sub 2/ fuel specimens with four types of metallic claddings was determined during irradintion in 2200 to 3200 deg F flowing helium and oxygen. Fission-gas samples cold trapped from the iurnace sweep gas were identified in a gamma analyzer. Informntion on iodine release was obtained by moritoring xenon produced by iodine decay after irradiation and by washing and scrubbing the loop after irradiation to recover iodine plated out in the system. Uranium contamination of portions of the loop made it impossible to detect releases below a certain level from the specimens. Specimens clad with niobium or niobium-29.6 wt% aluminum-33.7 wt% titanium exhibited release fractions in the range of 10/sup -6/ at 2200 deg F and 10/sup -6/ at 3000 and 3200 deg F. Release values for iron-30 wt% chromium-1 wt% yttriumclad material at 2200 deg F were aroung 2 x 10/sup -2/. Material clad with iron-25 wt% chromium-l wt% yttrium-4.67 wt% aluminum exhibited a release fraction of 1.6 x 10/sup -3/ during irradiation in 2200 deg F oxygen and oxygen saturated with water vapor. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, OH (United States)
- DOE Contract Number:
- W-7405-ENG-92
- NSA Number:
- NSA-17-006645
- OSTI ID:
- 4762829
- Report Number(s):
- BMI-1604
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
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