XENON CHASE AND SAMARIUM BURNUP IN THE HFIR
Technical Report
·
OSTI ID:4843217
Calculations were made in connection with xenon and samarium transients in the HFIR, including associated variations in the power distribution. Of particular interest was the possibility of burning samarium out of a core that was shutdown for a prolonged period of time after eleven or more days of operation at full power. The results indicate that such a core between the ages of 11 and 13 days old can complete the normal 15-day cycle after samarium burning times of zero to 50 days, respectively, in a 1.0-Mw natural convection cooling facility. A core shutdown for a prolonged time after 13 days could not complete the 15-day cycle. The variations in power distribution associated with the xenon and samarium transients do not appear to be a problem if the hotspot heat flux is limited only by the maximum permissible fuel plate temperature. In any event, the maximum increase in hot-spot heat flux above normal is only 15%. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- NSA Number:
- NSA-15-028833
- OSTI ID:
- 4843217
- Report Number(s):
- CF-61-7-87
- Country of Publication:
- United States
- Language:
- English
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