Linear polarization measurements of γ rays from Zn64

J. C. Wells, Jr., R. L. Robinson, H. J. Kim, R. O. Sayer, A. J. Caffrey, and R. B. Piercey
Phys. Rev. C 18, 2162 – Published 1 November 1978
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Abstract

The linear polarizations of Zn64 γ rays, produced in the Co59(Li7, 2n) reaction with ELi7=18 MeV, have been measured with a Ge(Li) two-crystal Compton polarimeter. These polarization values were used with previously obtained γ-ray angular distribution measurements to make unique parity assignments for several states. The 641- and 1619-keV γ rays have been found to be predominantly E1 transitions, and odd parity has been assigned to the levels at 2999 keV (3), 3925 keV (5), 4635 keV (7), 4981 keV (7), and 5681 keV (8). Even parity assignments have been confirmed for levels at 991 keV (2+), 2736 keV (4+), 3994 keV (6+), and 4237 keV (6+). Also, the spin assignments for levels at 2307 keV (4+) and 4635 keV (7) have been confirmed.

NUCLEAR REACTIONS Co59(Li7, 2n)Zn64, E=18 MeV; measured linear polarization of γ rays; deduced parities and multipole mixing ratios in Zn64.

  • Received 18 May 1978

DOI:https://doi.org/10.1103/PhysRevC.18.2162

©1978 American Physical Society

Authors & Affiliations

J. C. Wells, Jr.

  • Physics Department, Tennessee Technological University, Cookeville, Tennessee 38501 and Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

R. L. Robinson, H. J. Kim, and R. O. Sayer

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

A. J. Caffrey

  • Physics Department, The Johns Hopkins University, Baltimore, Maryland 21218

R. B. Piercey

  • Physics Department, Vanderbilt University, Nashville, Tennessee 37235

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Vol. 18, Iss. 5 — November 1978

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