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U.S. Department of Energy
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GCFR irradiation experiments

Conference ·
OSTI ID:6008836
The fuel rods in the gas-cooled fast breeder reactor (GCFR) are vented and pressure equalized to avoid creep collapse of the cladding under external overpressure of 9 MPa (90 atm) of the helium coolant. The GCFR thermal flux mixed oxide fuel rod tests consisted of sealed rod experiment P-8 and vented rod sweep gas capsule experiments GB-9 and GB-10 in ORR. The GCFR epithermal flux tests include planned single-rod vented sweep gas experiment GB-11 and the helium loop tests of 12-ribbed-rod, vented bundle tests HELM 2 (UO/sub 2/ fueled) and HELM 3 (PuO/sub 2/--UO/sub 2/ fueled), which are currently under way. The GCFR fast flux experiments consist of 13 encapsulated rods (7 rods at a time) in F-1 (X094), 10 encapsulated rods in F-3 (X206), and 43 unencapsulated rods (31 rods at a time) in the F-5 (X317) grid spaced bundle experiment. The objectives of the GCFR irradiation tests are given.
Research Organization:
General Atomic Co., San Diego, CA (USA)
DOE Contract Number:
EY-76-C-03-0167-023
OSTI ID:
6008836
Report Number(s):
GA-A-14820; CONF-790306-17
Country of Publication:
United States
Language:
English