Levels inPopulated by the Decay of
- 12 April 1965
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 138 (1B), B9-B17
- https://doi.org/10.1103/physrev.138.b9
Abstract
The decay of 8.4-h has been investigated using high-resolution gamma-ray and conversion-electron spectroscopy. Strong , , and conversion lines of a 157.32±0.03-keV transition converted in rhodium are observed to grow in initially pure sources and ultimately to decay with a half-life of 4.43±0.06 days. This isomeric transition is classified as on the basis of its radiative lifetime of (1.3±0.3)× sec. Other transitions attributed to decay have been observed with energies 24.46, 269.60, 296.13, 320.7, 453.2, 565.5, 590.3, 723.4, 748.3, 992.6, 1177.2, 1202.1, 1218.6, 1289.3, and 1312.8 keV. Energy-sum relationships and coincidence studies reveal levels in with the following energies, spins, and inferred parities: 0 (½-), 157.32 (), 181.78 (), 477.9 (), 747.5 (), 905.3 (+), 1359.2 (+), and 1470.6 (+) keV. The ground-state spin and parity is suggested for . A comparison is made between the energy levels of as found in this investigation and the properties of low-lying levels reported for neighboring nuclei. The existence of additional collective states in is suggested.
Keywords
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