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U.S. Department of Energy
Office of Scientific and Technical Information

RADIATION DOSE RATES DUE TO FISSION PRODUCTS IN THE PWR PRIMARY COOLANT

Technical Report ·
OSTI ID:4342676
It is predicted that, with l000 defective UO/sub 2/ fuel rods, the dose rate 1 ft from the l8 m main coolant piping will decline from a steady-state value of 207 mr/hr at shutdown to a value of l36 mr/hr 24 hr later if the purification system continues in operation. If purification flow is interrupted at reactor shutdown it is predicted that the dose rate will rise from the steady- state operating level to a maximum of 332 mr/hr at 8 hr after shutdown and then decline, with a 77 hr haIf life, to 300 mr/hr at 24 hr. The contribution of deposited crud to the dose rate is also evaluated. (M.H.R.)
Research Organization:
Westinghouse Electric Corp. Atomic Power Div., Pittsburgh
NSA Number:
NSA-12-003265
OSTI ID:
4342676
Report Number(s):
WAPD-CDA(AD)-29
Country of Publication:
United States
Language:
English