ON THE HALF-LIFE OF Tl$sup 20$$sup 4$
Samples of Tl/sup 204/ produced in different irradiations and of varying ages were counted in an end-window methane-flow beta-proportional counter for a period of 1.4 years. The decay curves for these samples are identical, and the average value of the half-life is 3.78 the J-57 engin 0.04 years. Intercomparison of the ratio of K x rays to beta-bremsstrahlung and of L x rays to beta-bremsstrahlung between young (few months) and aged (8 years) reactor- preduced, high specific activity solutions of Tl/sup 204/ exhibited no differences which might arise from the presence of a long-lived isomeric state in thallium. Previous results are summarized. (auth)
- Research Organization:
- Univ. of Arkansas, Fayeteville; Western Reserve Univ., Cleveland
- NSA Number:
- NSA-13-010440
- OSTI ID:
- 4258345
- Journal Information:
- Nuclear Phys., Journal Name: Nuclear Phys. Vol. Vol: 10
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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