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On the possible existence of superheavy elements in monazite

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

Proton-induced x-ray studies of monazite grains from different occurrences show no evidence for primordial superheavy elements. It is demonstrated that the recently reported evidence for superheavy elements in monazite inclusions of biotite mica showing giant halo formation is not significant: the observed differences in the x-ray spectra of normal and giant halo inclusions are due to different backgrounds in the respective spectra. Moreover, it is shown that the 27.2 keV line tentatively interpreted as theL α1x-ray of elementZ=126 can be entirely attributed to the reaction140Ce(p,n γ)140Pr.

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References

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Authors and Affiliations

  1. Max-Planck-Institut für Kernphysik, Heidelberg

    F. Bosch, A. El Goresy, W. Krätschmer, B. Martin, B. Povh, R. Nobiling, K. Traxel & D. Schwalm

  2. Physikalisches Institut der Universität Heidelberg, Heidelberg

    R. Nobiling & K. Traxel

  3. Gesellschaft für Schwerionenforschung, Darmstadt

    D. Schwalm

Authors
  1. F. Bosch
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  2. A. El Goresy
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  3. W. Krätschmer
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  4. B. Martin
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  5. B. Povh
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  6. R. Nobiling
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  7. K. Traxel
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  8. D. Schwalm
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Additional information

We would like to thank G.V. Gentry, Oak Ridge National Laboratory, for his permission to use the monazite samples (M1) he left at the disposal of T. Kirsten, Heidelberg, for the present investigation. Moreover, we are indebted to G. Herrmann, Mainz and Darmstadt, for supplying us with a monazite crystal (M2) from Ambatofotsikely, Madagascar, and for many stimulating discussions concerning the chemistry of monazite and the interpretation of the results of [1]. We equally wish to thank P. Ramdohr, Heidelberg, for his continuous interest in the present investigation and enlightening discussions.

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Bosch, F., El Goresy, A., Krätschmer, W. et al. On the possible existence of superheavy elements in monazite. Z Physik A 280, 39–44 (1977). https://doi.org/10.1007/BF01438107

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  • DOI: https://doi.org/10.1007/BF01438107

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