THE STABILITY OF "STABLE" FISSION-PRODUCT POISONING
Journal Article
·
· Nuclear Sci. and Eng.
OSTI ID:4146519
In reactor-lifetime calculations it is customary to take account of the transient behavior of two fission product poisons, Xe/sup 135/ and Sm/sup 149/, and to assume the gross poisoning due to all other products is a function of the total timeintegrated exposure irrespective of the detailed flux history. This description tacitly assumes that the gross poisoning of the other products is stable. The adequacy of the description is demonstrated experimentally for a natural UO/sub 2/ sample irradiated in a reactor flux of 2 x 10/sup 14/ n/cm/sup 2/-sec to an exposure of 6300 Mwd/ton. The poisoning associated with the so- called "stable" fission products is found to chsnge only (--7 plus or minus 3) barns/fission per year. (auth)
- Research Organization:
- Westinghouse Electric Corp., Pittsburgh
- NSA Number:
- NSA-14-023716
- OSTI ID:
- 4146519
- Journal Information:
- Nuclear Sci. and Eng., Journal Name: Nuclear Sci. and Eng. Vol. Vol: 8
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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