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U.S. Department of Energy
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Spent fuel reaction - the behavior of the {epsilon}-phase over 3.1 years

Conference ·
OSTI ID:477547
The release fractions of the five elements in the {epsilon}-phase ({sup 99}Tc, {sup 97}Mo, Ru, Rh, and Pd) as well as that of {sup 238}U are reported for the reaction of two oxide fuels (ATM-103 and ATM-106) in unsaturated tests under oxidizing conditions. The {sup 99}Tc release fractions provide a lower limit for the magnitude of the spent fuel reaction. The {sup 99}Tc release fractions indicate that a surface reaction might be the rate controlling mechanism for fuel reaction under unsaturated conditions and the oxidant is possibly H{sub 2}O{sub 2}, a product of alpha radiolysis of water.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE Office of Civilian Radioactive Waste Management, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
477547
Report Number(s):
ANL/CMT/CP--90408; CONF-961202--79; ON: DE97003167
Country of Publication:
United States
Language:
English