K-conversion coefficient of the 53.3 keV transition and\frac{K}{{L + M}}-ratio of the 13.34 keV transition in73Ge |
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Authors: | K -P Vester |
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Institution: | 1. I. Physikalisches Institut, Freie Universit?t Berlin, Berlin West, Germany
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Abstract: | TheK-conversion coefficient of the 53.3 keV transition in73Ge was measured by coincidence techniques to be αk 1=7.1 ± 0.6 indicating very good agreement with heory forM2-radiation. The \(\frac{K}{{L + M}}\) -ratio of the 13.34 keV transition to the ground state was determined using the same techniques. The resulting value \(\left( {\frac{K}{{L + M}}} \right)_2 \) =0.36 ± 0.03 supports theE2-character of this radiation and therefore a spin assignment of \(\frac{5}{2}\) for the 13.34 keV level. The measured lifetime of this transition (T 1,2=(2.95 ± 0.05) μsec) corresponds to a factor of 15 greater than the Weisskopf estimation for a pureE2-transition. A short discussion of a possible transfer of the collectivity of the72Ge-nucleus to the73Ge-nucleus is given. |
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