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

CHEMISTRY OF DEFECT TEST ON HIGHLY RATED SINTERED UO$sub 2$ FUEL. Test X-2-q

Technical Report ·
OSTI ID:4227392
A highly rated (Sk.d0 = 48 W/cm) sintered UO{sub 2} specimen, 0.8 in. O.D., with a 0.010-in. diameter hole through the Zircaloy sheath, was irradiated in the X-2 loop in the NRX reactor for approximately 16 days. For this irradiation period the escape-rate coefficients calculated for the fission products Kr-88, Cs-138, I-135, I-133 and I-131 were similar to those found in previous defect tests on UO{sub 2} fuel operated at considerably lower heat ratings. The test was terminated due to high activity in the loop water which occurred during a reactor trip-startup cycle. Post-irradiation examination of the defected fuel element indicated no reason for the activity surge. (auth)
Research Organization:
Atomic Energy of Canada Ltd., Chalk River, Ontario (Canada)
NSA Number:
NSA-14-003724
OSTI ID:
4227392
Report Number(s):
EXP-NRX-1806; AECL-906
Country of Publication:
Canada
Language:
English