Abstract
Internal conversion electrons and gamma-rays emitted in the decays of the neutron deficient gold isotopes with mass numbers 186–189 have been studied with a double focussing beta-ray spectrometer and a Ge(Li) detector. Multipolarities for the strongest transitions have been deduced. A revised level scheme for189Pt is proposed. The half-lives of186Au,188Au and189Au are found to be (10.7±0.5), (9.0±0.4) and (28.6±1.0) minutes respectively.
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The authors are indebted to Prof. Kai Siegbahn for providing excellent working facilities and for his kind interest. The chemical separations were carried out by Mr. S. Norrby and Mr. C. Bergman and it is a pleasure to thank them for their skilful work.
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Johansson, A., Svahn, B., Nyman, B. et al. Decay studies of Au isotopes in the mass number region 186–189. Z. Physik 230, 291–308 (1970). https://doi.org/10.1007/BF01403119
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DOI: https://doi.org/10.1007/BF01403119