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MEASURING THE RELEASE OF SHORT-LIVED FISSION GASES DURING CAPSULE IRRADIATIONS

Technical Report ·
DOI:https://doi.org/10.2172/4131618· OSTI ID:4131618
A technique is described for the determination of the release of short- lived fission gases during capsule fuel irradiations. Sweep helium passes over the fuel specimen and carries fission gases to a delay trap located close to the capsule. Short-lived fission gases decay in the trap and deposit long-lived daughters which are assayed by radiochemical methods after trap removal. In two demonstrations of the technique the radiochemical analyses have provided information on the rate of release of 1.7-sec Xe/sup 141/, 16-sec Xe/sup 140/, 3.9 min Xe/sup 137/, and 3.2-min Kr/sup 89/. The technique should find considerable application in the irradiation evaluation of fuel materials when it is necessary to determine the contribution shont-lived fission gases make to the coolant-contamination problem. (auth)
Research Organization:
Battelle Memorial Inst., Columbus, Ohio
DOE Contract Number:
W-7405-ENG-92
NSA Number:
NSA-14-026006
OSTI ID:
4131618
Report Number(s):
BMI-1466
Country of Publication:
United States
Language:
English