Tc92 and Tc93 by relative cross-section measurements

Kundu, D. N. ; Pool, M. L. (1948) Tc92 and Tc93 by relative cross-section measurements Physical Review, 74 (12). pp. 1775-1781. ISSN 0031-899X

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Under 5-Mev proton and 10-Mev deuteron bombardments on natural Mo and on electro-magnetically enriched Mo isotopes, activities of 2.7-hour, 47-minute, and 4.5-minute half-lives are found to be produced from Mo92. The relative cross sections for the production of these activities are 25:127:1, respectively. On comparing these figures with those for the (p,n):(p,γ ) reactions from Mo95, the 47-minute activity is assigned to Tc92, and the 2.7-hour and the 4.5-minute activities to Tc93. Tc92 decays by K-capture only attended with 1.5-Mev γ-rays. For the 2.7-hour Tc93, the decay is 93 percent by K-capture and 7 percent by emission of positrons of maximum energy 0.83 Mev. There are also γ-rays of energy 2.0 Mev associated with this activity.

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Source:Copyright of this article belongs to American Physical Society.
ID Code:30840
Deposited On:27 Dec 2010 08:07
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