Abstract
Gamma-rays in the disintegration of 5.0 s (1+), 8.5 s (7−, 8−), and 4.4 min (4+, 5+)118In isomers and of 3.5 min (1+) and 5.1 h (8−)118Sb isomers have been investigated using Ge(Li) detectors and Ge(Li)-NaI(Tl) coincidence spectrometers. The decay schemes of these isomers have been constructed incorporating 17 levels in the product nucleus,118Sn, at the following energies (in keV): 0 (0+), 1229.5 (2+), 1757.5 (0+), 2043.1 (2+), 2056.4 (0+), 2280.3 (4+), 2321.3 (5−), 2326.4 (1+, 2+), 2402.7 (4+), 2488.8 (4+), 2496.5 (0+), 2575.2 (7−), 2677.3, 2733.7 (2+), 2929.8, 2963.5 (4+), and 3137.1 (0+). The structure of118Sn is briefly discussed in view of results from recent quasiparticle-model calculations.
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We wish to thank the synchrocyclotron crew at the Gustaf Werner Institute, Uppsala, and Dr. A. Siivola and the isotope-separator crew at the University of Helsinki, for help in obtaining the118Sb sources. Valuable assistance of Mr. J. Kukkonen is also appreciated. One of us (J.H.) is indebted to the Rector of the University of Jyväskylä, Professor I.S. Louhivaara, and another (J.K.) to the Wihuri Foundation, for research grants. This work has in part been supported by the National Research Council for Sciences.
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Hattula, J., Liukkonen, E. & Kantele, J. Levels of118Sn populated in the decay of118In and118Sb isomers. Z. Physik 231, 203–215 (1970). https://doi.org/10.1007/BF01401032
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DOI: https://doi.org/10.1007/BF01401032