Some Properties of the States at 1.346, 1.459, and 1.554 MeV in F19

A. R. Poletti, J. A. Becker, and R. E. McDonald
Phys. Rev. 182, 1054 – Published 20 June 1969
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Abstract

Measurements of the radiative decay of the triplet of levels at 1.346, 1.459, and 1.554 MeV in F19 have been made with a Ge(Li) γ-ray spectrometer. Results of lifetime measurements for these states when averaged with previous work are, respectively, τm=4.9±0.5 psec, 0.084±0.020 psec, and 4.42.0+2.4 fsec. Accurate energies of the three states were determined to be 1345.75±0.20, 1459.1±0.5, and 1554.1±0.3 keV. Information on decay modes and mixing ratios has also been obtained for these states. The decay branching of the 1.459-MeV level was found to differ significantly from that reported by previous investigators. The results are compared with various model predictions.

  • Received 9 December 1968

DOI:https://doi.org/10.1103/PhysRev.182.1054

©1969 American Physical Society

Authors & Affiliations

A. R. Poletti*, J. A. Becker, and R. E. McDonald

  • Lockheed Palo Alto Research Laboratory, Palo Alto, California 94304

  • *Present address: Department of Physics, University of Auckland, Auckland, New Zealand.

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Issue

Vol. 182, Iss. 4 — June 1969

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