Levels in Pb205 Populated by the Decay of Bi205

J. H. Hamilton, V. Ananthakrishnan, A. V. Ramayya, W. M. LaCasse, D. C. Camp, J. J. Pinajian, L. H. Kern, and J. C. Manthuruthil
Phys. Rev. C 6, 1265 – Published 1 October 1972
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Abstract

Chemically and isotopically separated sources of Bi205 were used to study the level structure of Pb205. γ-ray data were taken with Ge(Li) detectors in the singles mode, with a Compton suppression spectrometer, and with a Ge(Li)-Ge(Li) two-parameter analyzer system in a 4096 × 2048 coincidence mode. Conversion-electron data were taken with a Si(Li) detector. From these data 146 transitions were identified in the decay of Bi205, and 130 were placed in a level scheme which included 26 definite and 1 tentatively assigned levels. Previously suggested levels at 1575.26, 1705.03, 1965.9, and 2521.40 keV were confirmed from coincidence data, while a 1129.9-keV level was not. New levels at 1756.4 and 1842.01 are established and an 1818-keV level tentatively assigned. Several new spin and parity assignments are made. Experimental results are compared with recent shell-model calculations.

  • Received 24 April 1972

DOI:https://doi.org/10.1103/PhysRevC.6.1265

©1972 American Physical Society

Authors & Affiliations

J. H. Hamilton*, V. Ananthakrishnan*, A. V. Ramayya*, and W. M. LaCasse*

  • Physics Department, Vanderbilt University, Nashville, Tennessee 37235

D. C. Camp

  • Lawrence Livermore Laboratory, Livermore, California 94550

J. J. Pinajian and L. H. Kern

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

J. C. Manthuruthil

  • Aerospace Research Laboratories, Wright-Patterson Air Force Base, Ohio 45433

  • *Work supported in part by a grant from the National Science Foundation.
  • Work was performed under the auspices of the Atomic Energy Commission.
  • Research sponsored by the U. S. Atomic Energy Commission under contract with Union Carbide Corporation.

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Issue

Vol. 6, Iss. 4 — October 1972

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