Abstract
Gamma rays in the disintegration of208Tl(ThC″) have been studied with Ge(Li)-Na I(Tl) anti-Compton and coincidence spectrometers. Several new transitions are reported most of which are placed in a decay scheme incorporating excited states in208Pb at 2,614.5, 3,197.6, 3,475.0, 3,708.3, 3,919.8, 3,960.9, 3,998.5, 4,125.3, 4,180.4, 4,296.1 and 4,480.0 keV. According to the present data, the recently reported intensity of 4.5±1.5% of beta groups feeding levels near 4.3 MeV is far too large.
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This work has been supported by the National Research Council for Sciences. One of us (A. P.) thanks the Rector of the University of Jyväskylä, Professor I. S.Louhivaara, the other (J. K.) the Wihuri Foundation, and the third (P. S.) Osk. Huttunen Foundation, for research grants
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Pakkanen, A., Kantele, J. & Suominen, P. Levels in208Pb populated in the decay of208Tl(ThC″). Z. Physik 218, 273–281 (1969). https://doi.org/10.1007/BF01458409
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DOI: https://doi.org/10.1007/BF01458409