In-beam study of Pb206 level scheme including conversion electrons ≳ 40 keV

James E. Draper, Richard J. McDonald, and Nicholas S. P. King
Phys. Rev. C 16, 1594 – Published 1 October 1977
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Abstract

In-beam time-sorted measurements of internal-conversion electrons, γ rays, and γγ coincidence are reported for Pb206. The range of measurable kinetic energies of electrons was ∼40-1600keV with powder targets using the reaction Hg204(α,2n)Pb206. The results confirm the yrast 12+, 10+, and 9- levels in Pb206 which, based on partial evidence, were tentatively proposed by the group in Stockholm. The effective quadrupole charge of the i132 neutron is (0.89 ± 0.05)e. Conversion coefficients and multipolarities of 10 transitions in Pb206 are reported.

NUCLEAR REACTIONS Hg204(α,2n), Eα=30 MeV; measured 40-1600 keV internal conversion electron spectra, γ spectra, and γγ coincidence spectra in eight time bands after beam burst. Deduced levels, J, π, ICC. Si(Li) and Ge(Li) detectors.

  • Received 26 May 1977

DOI:https://doi.org/10.1103/PhysRevC.16.1594

©1977 American Physical Society

Authors & Affiliations

James E. Draper, Richard J. McDonald, and Nicholas S. P. King*,†

  • Crocker Nuclear Laboratory, University of California, Davis, California 95616

  • *Present address: Los Alamos Scientific Laboratories, Los Alamos, New Mexico 87545.
  • Work supported in part by National Science Foundation.

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Issue

Vol. 16, Iss. 4 — October 1977

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