ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Gamma-gamma directional correlations have been investigated for several cascades in56Fe formed in the decay of56Mn or56Co. A combination of NaI(Tl) and Ge(Li) detectors was used for the experiments. It was established that a level at 3601 keV is populated in the decay of56Co. Spins given in the paranthesis were assigned to levels at the following energies: 2658(2), 2960(2), 3123(4), 3370(2), 3445(3), 3601(2), 3856(3), 4049(3), 4100(4), 4120(3), 4298(4), 4395(3) and 4459 keV (3,4). Multipole mixing ratios were determined forγ transitions of the following energies: 978, 1038, 1175, 1360, 1772, 1811, 1964, 2015, 2035, 2113, 2213, 2523, 2599, 3010, 3202, 3254, 3273, 3451 and 3548 keV. Theγ-rays from the decay of56Co of energies 674.7 and 2657.4 keV have been observed for the first time, and the presence of several other weakγ-rays in the56Fe decay has been confirmed. Nine angular correlations in the decay of56Ni have been investigated. The spin sequence 4, 3, 2, 0, 1 was unambiguously determined for the levels at 0, 158.2, 970.1, 1450.7 and 1720.0 keV. The multipolarity of theγ-rays of energies 158.2, 749.9 and 811.9 keV was determined as almost pure M1. The results are discussed within the framework of recent shell model calculations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01677445
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