Alpha-Gamma Angular Correlations in Three Heavy Odd-ANuclides
- 20 May 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 157 (4), 1093-1098
- https://doi.org/10.1103/physrev.157.1093
Abstract
Angular correlations between alpha particles and gamma rays have been measured in liquid sources of three separate nuclides, americium-243, uranium-233, and neptunium-237. The angular-correlation functions were experimentally determined for five transitions, and the relative angular-momentum mixing ratios for these transitions were deduced. The mixing ratios of agree with theory, but the mixing ratios are somewhat higher than predicted. Upper limits of the half-lives of 99-keV and 45-keV states in were measured, respectively, as 0.8× and 1.2× sec. From a comparison of the attenuated angular correlation in , and a previously measured angular correlation in , it is deduced that an extranuclear interaction occurs whose time duration is less than 1.2× sec.
Keywords
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