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The half-life of87Rb measured as difference between the isotopes87Rb and85Rb

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Zeitschrift für Physik

Abstract

The half-lifeT of87Rb was determined by means of a 4π proportional counter using thin sources of RbCl on thin conducting backings. The total thicknessD investigated (RbCl+support) ranged from 11 to 525 μg/cm2. Comparative measurements with (inactive) layers of85RbCl showed that, in the energy range below 185 eV, RbCl layers give rise to spurious pulses. Linear extrapolation of the specific activity belowD=45 μg/cm2 toD=0 yieldsT=(4.88 +0.06−0.10 )·1010 y. Previously published half-lives are discussed.

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Authors and Affiliations

  1. Institut für Kernphysik, Universität Münster, Germany

    W. Neumann & E. Huster

Authors
  1. W. Neumann
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  2. E. Huster
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Additional information

Dissertation (W.N.), Münster, 1973.

We are indebted to the Landesamt für Forschung des Landes Nordrhein-Westfalen for financial support.

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Neumann, W., Huster, E. The half-life of87Rb measured as difference between the isotopes87Rb and85Rb. Z. Physik 270, 121–127 (1974). https://doi.org/10.1007/BF01677443

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  • DOI: https://doi.org/10.1007/BF01677443

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