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Beta-delayed neutrons and high-energy gamma-rays from decay of137I

  • Nuclei
  • Published:
Zeitschrift für Physik A Atoms and Nuclei

Abstract

Beta-delayed neutrons and high-energyγ-rays following decay of137I have been studied in order to characterizeβ-decay to and deexcitation of neutron-unbound levels in137Xe. The totalγ-ray intensity observed accounts for at least 20% of theβ-intensity to levels aboveB n . No evidence was found for neutron andγ-ray emission from the same levels. With the experimentalβ-strength function aboveB n detailed tests were performed on the reproduction of the experimental neutron spectrum, the level density and Porter-Thomas fluctuations of the reducedβ-transition probabilities to highly excited states in137Xe.

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Author notes

  1. W. Rudolph

    Present address: NUKEM, D-6450, Hanau, Federal Republic of Germany

Authors and Affiliations

  1. Institut für Kernchemie, Universität Mainz, Mainz, Federal Republic of Germany

    H. Ohm, M. Zendel, S. G. Prussin, W. Rudolph, A. Schröder & K. -L. Kratz

  2. Centre d'Etudes Nucléaires Grenoble, France

    C. Ristori, J. A. Pinston, E. Monnand & F. Schussler

  3. Centre de Recherches Nucléaires et Université Louis Pasteur, Strasbourg, France

    J. P. Zirnheld

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  1. H. Ohm
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  2. M. Zendel
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  3. S. G. Prussin
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  4. W. Rudolph
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  5. A. Schröder
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  6. K. -L. Kratz
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  7. C. Ristori
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  8. J. A. Pinston
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  9. E. Monnand
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Additional information

Alexander von Humboldt-Fellow, on sabbatical leave from Department of Nuclear Engineering, University of California, Berkeley, CA 94720, USA

The authors would like to acknowledge the assistance of M. Brügger during part of the experiments, and helpful discussions with G. Herrmann. We also thank the staff of the Mainz TRIGA reactor for numerous irradiations and the staff of LOHENGRIN for their support and the maintainance of the separator facility. This work was, in part, supported by the German Bundesministerium für Forschung und Technologie.

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Ohm, H., Zendel, M., Prussin, S.G. et al. Beta-delayed neutrons and high-energy gamma-rays from decay of137I. Z Physik A 296, 23–33 (1980). https://doi.org/10.1007/BF01415611

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  • DOI: https://doi.org/10.1007/BF01415611

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