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

C.W. Townley | Zendy; G.E. Raines | Zendy; W.S. Diethorn | Zendy; D.N. Sunderman | Zendy

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

Author(s) -

C.W. Townley,

G.E. Raines,

W.S. Diethorn,

D.N. Sunderman

Publication year - 1960

Language(s) - English

Resource type - Reports

DOI - 10.2172/4131618

Subject(s) - fission , fission products , radiochemistry , xenon , helium , chemistry , nuclear physics , irradiation , neutron , physics , organic chemistry

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

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