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Nuclear orientation of152,154Tb in gadolinium

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Czechoslovak Journal of Physics B Aims and scope

Abstract

The anisotropy in the directional distribution of gamma-rays from the decay of152,154Tb oriented in a gadolinium matrix at low temperatures, has been measured at the angles of 0 and π/2 with respect to the applied magnetic field direction at temperature of (15±1) mK. Unambiguous values of spin have been deduced for several levels in152Gd. Multipole mixing ratios of many gamma-ray transitions occurring in152Gd have been found and results are compared with the similar transitions in150,154,156Gd and they are discussed in terms of the rotational-vibrational model and dynamic deformation theory based on the Strutinsky method. Our results confirm the spin value of 0 for 21·4 h isomer in154Tb and they establish the spin value of 3 for the 2277·0 and 2336·1 keV levels and the spin value of 4 for the 2416·3 keV level in154Gd.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, USSR

    J. Ferencei, M. Finger, J. Dupák, A. Jankech, J. Koníček & F. A. Schus

  2. Czech Technical University, Prague

    J. Říkovská & A. Machová

  3. Faculty of Mechanical Engineering, Department of Physics, Suchbátarova 4, 160 00, Praha 6, Czechoslovakia

    J. Říkovská

  4. Faculty of Nuclear Physics and Technical Engineering, Křemencová 10, 110 00, Praha 1, Czechoslovakia

    A. Machová

  5. University of Sussex, Brighton, UK

    D. W. Hamilton

Authors
  1. J. Ferencei
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  2. M. Finger
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  3. J. Dupák
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  4. A. Jankech
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  5. J. Koníček
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  6. F. A. Schus
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  7. J. Říkovská
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  8. A. Machová
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  9. D. W. Hamilton
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Additional information

Dedicated to the 25th anniversary of the Joint Institute for Nuclear Research.

The authors are indebted to V. M. Tsupko-Sitnikov, V. I. Fominykh and M. I. Fominykh for the help with the arrangement of the experimental equipment and data transmission.

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Ferencei, J., Finger, M., Dupák, J. et al. Nuclear orientation of152,154Tb in gadolinium. Czech J Phys 31, 511–521 (1981). https://doi.org/10.1007/BF01596417

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  • DOI: https://doi.org/10.1007/BF01596417

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