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The decay of93gRu,93mRu,91gMo,91mMo,91gTc and91mTc

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Decay studies on a number of short-lived odd nuclei in theN=50 region are described. The 59.6-s 93Ru ground state decay was studied in detail for the first time; in these experiments the 10.8-s activity93mRu was discovered. The91Tc activities were also observed for the first time. The ground state and an isomeric state of this nucleus decay with nearby equal half-lives (3.14 and 3.3-min). The activities91gMo (16.6-min) and95mMo (65.1-s) have been reinvestigated. A number ofγ-rays, previously erroneously assigned to the91Mo activities, could be eliminated. A strong similarity is noted for the decay schemes of theN=49 isotones91mMo and93mRu. The energy of the 1/2− isomeric state in93Ru and theB(M4)-value of the isomeric transition fit well into the systematics of the previously knownN=49 isotones.

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Authors and Affiliations

  1. Natuurkundig Laboratorium, Vrije Universiteit, Amsterdam

    J. C. de Lange, J. Bron, A. van Poelgeest & H. Verheul

  2. Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

    W. B. Ewbank

Authors
  1. J. C. de Lange
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  2. J. Bron
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  3. A. van Poelgeest
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  4. H. Verheul
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  5. W. B. Ewbank
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Additional information

We express our gratitude to F. Rauch for stimulating discussions, to J. Rethmeier and his cyclotron crew for the numerous irradiations and to M.H. Valkenburg and B. Bakker, responsible as they were for the rabbit system.

This investigation was partly supported by the Foundation of Fundamental Research of Matter (F.O.M.), financially supported by the Netherlands Organization for Pure Scientific Research (Z.W.O.).

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de Lange, J.C., Bron, J., van Poelgeest, A. et al. The decay of93gRu,93mRu,91gMo,91mMo,91gTc and91mTc. Z Physik A 279, 79–91 (1976). https://doi.org/10.1007/BF01409094

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  • DOI: https://doi.org/10.1007/BF01409094

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