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Decay of oriented149Nd and levels in theN=88149Pm nucleus

  • Nuclear Properties Magnetic Dipole Moments
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Abstract

Levels in the149Pm nucleus populated via149Nd decay were studied using the low temperature nuclear orientation technique. The parent149Nd nuclei were oriented in a gadolinium host. The normalized gamma-ray intensities were determined for twenty five transitions in the daughter149Pm nucleus. The spins of the149Pm levels at 288.2 and 425.3 keV were determined as 9/2 and 7/2, respectively, and for several other149Pm levels the previous spin-assignments could be unambiguously confirmed. Substantial new information on multipole mixing ratios of gamma-transitions in149Pm is presented. Low-energy level spacing in the149Pm nucleus is found to be in reasonable agreement with recent particle-rotor model calculations including the variable moment of inertia.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, USSR

    P. Šimeček, I. Procházka, M. Finger, T. Lešner, P. Malinský, I. L. Sashin & E. Šimečková

  2. Czech Technical University, Prague, Czechoslovakia

    Z. Janout & J. Koníček

Authors
  1. P. Šimeček
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  2. I. Procházka
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  3. M. Finger
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  4. T. Lešner
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  5. P. Malinský
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  6. I. L. Sashin
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  7. E. Šimečková
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  8. Z. Janout
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  9. J. Koníček
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Šimeček, P., Procházka, I., Finger, M. et al. Decay of oriented149Nd and levels in theN=88149Pm nucleus. Hyperfine Interact 34, 123–126 (1987). https://doi.org/10.1007/BF02072691

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  • DOI: https://doi.org/10.1007/BF02072691

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