Abstract
The decay of121 g+m In to the excited states of121Sn was investigated.121In was produced by the122Sn(γ,p)121In reaction on an enriched SnO2 target. Strong indications of the isomeric transition of 321 keV to the121In ground state were found. In the beta decay of121mIn excited states at 60.1, 908.9, 1101.9, 1120.4, 1403.0, 2864.1, 3119.8 and 3228 keV in121Sn withJ π values 1/2+, 3/2(5/2)+, 3/2+, 5/2+, 5/2+ and 1/2+ or 3/2+ for the three levels around 3 MeV, are fed. In the decay of the121In ground state only the 7/2+ level in121Sn at 925.3 keV is fed.
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Research workers of the “Interuniversitair Instituut voor Kernwetenschappen”, Belgium.
The authors would like to express their gratitude to Prof. J. L. Verhaeghe for his support and his continued interest in this work. Prof. A. Gallmann, director of the “Laboratoire de Physique Nucléaire et d'Instrumentation Nucléaire-Strasbourg” is acknowledged for the use of a 25 cm3 detector constructed in his laboratory. We also thank Dr. J. Uyttenhove for helping with the electronic equipment and Dr. K. Heyde for many fruitfull discussions.
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De Frenne, D., Jacobs, E. The decay of121g+mIn to levels in121Sn. Z. Physik 258, 38–45 (1973). https://doi.org/10.1007/BF01392706
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DOI: https://doi.org/10.1007/BF01392706