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The α -decay properties of 186Bi
Authors:J. C. Batchelder  K. S. Toth  C. R. Bingham  L. T. Brown  L. F. Conticchio  C. N. Davids  T. Davinson  D. J. Henderson  R. J. Irvine  D. Seweryniak  W. B. Walters  P. J. Woods  J. Wauters  E. F. Zganjar
Affiliation:1. Louisiana State University, Baton Rouge, LA, 70803, USA
2. Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
3. University of Tennessee, Knoxville, TN, 37996, USA
4. Vanderbilt University, Nashville, TN, 37235, USA
5. Argonne National Laboratory, Argonne, IL, 60439, USA
6. University of Maryland, College Park, MD, 20742, USA
7. University of Edinburgh, Edinburgh, EH9 3JZ, UK
Abstract:The α decay of 186Bi was investigated via the 97Mo(92Mo, p2n) reaction and the use of a fragment mass analyzer with a double-sided Si strip detector. In contrast to an earlier work wherein only one α transition was reported, we observed two transitions arising from two isomers in 186Bi with energies and half-lives of: 7158(20) keV, T1/2 = 15.0(17) ms; and 7261(20) keV, T1/2 = 9.8(13) ms.
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