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Gamma-Gamma Coincidence Measurements and the Level Structure of Xe132

J. H. Hamilton*

H. K. Carter*,†

J. J. Pinajian‡

  • Physics Department, Vanderbilt University, Nashville, Tennessee 37203

  • Physics Department, Vanderbilt University, Nashville, Tennessee 37203 and Physics Department, Furman University, Greenville, South Carolina 29613

  • Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830

  • *Work supported in part by a grant from the National Science Foundation.
  • †Present address: Furman University, Greenville, S.C.
  • ‡Research sponsored by the U.S. Atomic Energy Commission under contract with the Union Carbide Corporation.
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Phys. Rev. C 1, 666 – Published 1 February, 1970

DOI: https://doi.org/10.1103/PhysRevC.1.666

Abstract

Two-parameter, 4096×4096, γ−γ coincidence measurements have been carried out to establish the energy levels and placement of new γ rays observed in the decay of I132 to Xe132. A NaI-Ge(Li) detector arrangement with a ND 3300 system was used. Spectra from the Ge(Li) detector in coincidence with 60-keV-wide NaI gates centered at 515, 630, 772, 800, 954, 1110, and 1170 keV and 120-keV-wide gates centered at 1270 and 1410 keV were analyzed. These data were used to place 63 transitions into a scheme with the following energies (in keV), spins, and parities: 667.67, 2+; 1297.84, 2+; 1440.27, 4+; 1803.66, 3+; 1962.92, (3, 4) +; 1985.3, 2(+); 2110.18, (3, 4) +; 2111.8, (5, 6) +; 2350.67, (3-5); 2394.93, (3, 4) +; 2424.89, (3.4) +; 2583.75, (3-5) +; 2588.66, (3, 4); 2613.50, (3-5) +; 2669.95, (3, 4) +; 2754.43, (3, 4); 2838.70, (3-5) +; 2840.29, (3, 4) +; 2890.74, (3, 4); and 3058.17, (3,4). Each level is based on observed coincidence relations. A tentative level assignment was also made for a 2041-keV (5—) level. An additional 10 levels are required by unplaced high-energy transitions.

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Phys. Rev. C 1, 666– Published 1 February, 1970
  • Received 23 May 1969

© 1970 American Physical Society

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