AXIAL VARIATIONS IN THE FRACTIONAL RELEASE OF FISSION PRODUCT XENON AND CAESIUM FROM UO-2 PELLETS
The distribution of xenon and caesium in a water reactor fuel pellet has been measured by electron probe microanalysis. The fractional xenon release was found to be 14 % at the pellet ends compared with 28 % at the mid-pellet position. At the mid-radial position, the concentration of retained xenon decreased sharply within 1 mm of the pellet ends after which it did not change significantly. The axial concentration profile for caesium exhibited a similar trend to that of xenon.
Bibliographic Reference: BNES CONFERENCE ON NUCLEAR FUEL PERFORMANCE, STRATFORD-UPON-AVON (UK), MARCH 25-29, 1985 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31623 ORA
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Record Number: 1989123046000 / Last updated on: 1987-01-01
Available languages: en