ISSN:
1572-9486
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The decay of Re 186 was investigated with a double focusing spectrometer and scintillation spectrometer. Four transitions were observed with energies of 122·7±0·1 keV, 137·2 keV, 632·2±1·5 keV and 768·2±1·5 keV and the relativeγ-ray intensities 18, 246, 0·9 and 1 respectively. TheK-conversion coefficients determined for low-energy transitions are in good agreement with the theoretical values (α K 122·7 =0·53±0·05,α K 137·2 =0·44±0·02). The relative intensities of theK, L, M andN conversion lines were also determined for these transitions:K∶L I +II∶L III ∶M=1·20±0·20∶1·32±0·20∶ 1±0·15∶0·57±0·08 for 122·7 keV transition,K∶L I +II∶L III ∶M∶N=1·57±0·08∶1· 72±008∶0·70±0·03∶0·20±0·01 for 137·2 keV transition. In the beta spectrum two groups were observed with the end points of 1076±3 keV and 939±3 keV and relative intensities 74±4% and 21±4% respectively. For the branching ofK-capture it was found that 1·5% populates the 122·7 keV level and 3·5% the ground state. The decay scheme from the present results is proposed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01689040
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