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Anomalous internal conversion of the K-forbidden 55 keV E1-transition in 177 Hf

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Abstract

The precise γ-ray intensities of the transitions following the decay of the 160.44 day isomeric state in 177Lu have been measured by using four different types of semiconductor photon detectors. The values of the internal-conversion coefficient and penetration parameter λ1 for E1-transition with the energy of 55 keV were determined from intensity balance of 21/2− 1260 keV level in 177Hf.

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Authors and Affiliations

  1. Institute for Nuclear Research, National Academy of Sciences of Ukraine, Prospect Nauky, 47, 03680, Kyiv, Ukraine

    A. P. Lashko, T. M. Lashko, A. M. Savrasov & V. O. Zheltonozhsky

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  1. A. P. Lashko
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  2. T. M. Lashko
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  3. A. M. Savrasov
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  4. V. O. Zheltonozhsky
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Correspondence to A. P. Lashko.

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Communicated by A.A. Korsheninnikov

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Lashko, A.P., Lashko, T.M., Savrasov, A.M. et al. Anomalous internal conversion of the K-forbidden 55 keV E1-transition in 177 Hf. Eur. Phys. J. A 49, 21 (2013). https://doi.org/10.1140/epja/i2013-13021-0

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