{alpha} decay of the new isotopes {sup 193,194}Rn
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, V5A-1S6 (Canada)
- Department of Nuclear Physics and Biophysics, Comenius University, Bratislava, SK-84248 (Slovakia)
- Instituut voor Kern- en Stralingsfysica, University of Leuven, B-3001 Leuven (Belgium)
- Gesellschaft fuer Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt (Germany)
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
- Department of Physics and Astronomy, University of Manchester, Manchester, M13 9PL (United Kingdom)
- IPN Orsay, F-91406 Orsay Cedex (France)
The new neutron-deficient isotopes {sup 193,194}Rn have been identified in the complete fusion reaction {sup 52}Cr+{sup 144}Sm{yields}{sup 196}Rn* at the velocity filter SHIP. The {alpha}-decay energy and half-life value of {sup 194}Rn were determined to be E{sub {alpha}}=7700(10) keV and T{sub 1/2}=0.78(16) ms, respectively. For {sup 193}Rn the half-life of T{sub 1/2}=1.15(27) ms and two {alpha} lines at E{sub {alpha}}{sub 1}=7685(15) keV, I{sub {alpha}}{sub 1}=74(20)% and E{sub {alpha}}{sub 2}=7875(20) keV, I{sub {alpha}}{sub 2}=26(12)% were found. The decay pattern of {sup 193}Rn, which is substantially different from that of the heavier odd-A Rn isotopes, provides first experimental evidence for the long-predicted deformation in the very neutron-deficient Rn nuclei.
- OSTI ID:
- 20864191
- Journal Information:
- Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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