Lightest Isotope of Bh Produced via the Bi209(Cr52,n)Bh260 Reaction

S. L. Nelson, K. E. Gregorich, I. Dragojević, M. A. Garcia, J. M. Gates, R. Sudowe, and H. Nitsche
Phys. Rev. Lett. 100, 022501 – Published 14 January 2008

Abstract

The lightest isotope of Bh was produced in the new Bi209(Cr52,n)Bh260 reaction at the Lawrence Berkeley National Laboratory’s 88-Inch Cyclotron. Positive identification was made by observation of eight correlated alpha particle decay chains in the focal plane detector of the Berkeley Gas-Filled Separator. Bh260 decays with a 359+19ms half-life by alpha particle emission mainly by a group at 10.16 MeV. The measured cross section of 5920+29pb is compared to model predictions. The influence of the N=152 and Z=108 shells on alpha decay properties is discussed.

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  • Received 7 May 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.022501

©2008 American Physical Society

Authors & Affiliations

S. L. Nelson1,2, K. E. Gregorich1, I. Dragojević1,2, M. A. Garcia1,2, J. M. Gates1,2, R. Sudowe1,*, and H. Nitsche1,2

  • 1Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
  • 2Department of Chemistry, University of California, Berkeley, California 94720, USA

  • *Present address: University of Nevada Las Vegas, Department of Health Physics, 4505 MD Parkway, Campus Box 453037, Las Vegas, NV 89154-3037, USA.

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Vol. 100, Iss. 2 — 18 January 2008

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