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The high-spin level structure of 186Au is re-investigated by means of in-beam j-ray spectroscopy via the 172Yb(19F, 5nj)186Au reaction. The oblate bands previously reported are revised and extended to higher-spin states. A new Iπ = (20+) excited state has been identified and assigned to the πh-11/2 ® configuration. The total Routhian surface and cranked shell model calculations suggest that the πhg11/2 ® v&ggr;gg322/2hgg/'2 band in 186Au has a non-axial deformation. [ABSTRACT FROM AUTHOR]

Gamma rays with energies between 80 keV and 1500 keV produced by 133Ba and 152Eu standard sources are measured with the clover detector. Relative efficiencies and add-back factors are determined in both crystals and full clover modes. The add-back characteristics have been calculated using Monte-Carlo simulation code Geant4. The simulation and measurements agree very well. [ABSTRACT FROM AUTHOR]