Abstract:
The high-spin states of 206At have been studied in the reaction 197Au (12C,3n) 206At at 12C energies from 60 to 80 MeV. In-beam measurements of γ-ray excitation functions, γ-γ-t coincidences, and γ-ray angular distributions were carried out with seven BGO(AC)HPGe detectors and one intrinsic Ge planar detector. A level scheme for 206At with 25 γ rays was established for the first time, including a 10− isomer with a measured half-life of 410 ± 80 ns. The level scheme of 206At consists of two disconnected cascades, probably corresponding to the proton excitations and the neutron-hole excitations, respectively.
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Receieved: 13 September 1999
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Feng, X., Guo, Y., Zhou, X. et al. Level sructure in 206At . Eur. Phys. J. A 6, 235–237 (1999). https://doi.org/10.1007/s100500050339
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DOI: https://doi.org/10.1007/s100500050339