Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Data summary report for fission product release test HI-3

Technical Report ·
OSTI ID:6837266
The third in a series of high-temperature fission product release tests was conducted for 20 min at 2000/sup 0/C in flowing steam. The test specimen, a 20-cm-long section of H.B. Robinson fuel rod that had been irradiated to approx. 25,200 MWd/t, was heated in an induction furnace in a hot cell. Posttest examination showed that the Zircaloy cladding had melted, causing extensive disintegration of the UO/sub 2/ fuel and formation of molten phases that appeared to be rich in uranium. Analyses of test components revealed very high fractional releases of /sup 85/Kr (59.0%), /sup 137/Cs (58.8%), and /sup 129/I (35.4%). The releases of /sup 125/Sb and /sup 110m/Ag, however, were much less than those observed in test HI-2 at 1700/sup 0/C, perhaps as a result of lower steam flow rate in test HI-3. The extent of aerosol formation, as evidenced by mass of material collected on filters, was similar in the two tests.
Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6837266
Report Number(s):
NUREG/CR-3335; ORNL/TM-8793; ON: DE84010352
Country of Publication:
United States
Language:
English