Determination of the {sup 190}Po {alpha} reduced width

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.949· OSTI ID:286836

Batchelder, J C; Toth, K S; Zganjar, E F; Moltz, D M; Bingham, C R; Ognibene, T J; Powell, J; Rowe, M W ^[1]

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1. Louisiana State University, Baton Rouge, Louisiana 70803 Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)

The isotope {sup 190}Po was produced in the {sup 144}Sm({sup 48}Ti,2{ital n}) reaction and its {alpha}-decay energy and half-life were measured to be 7.49(4) MeV and 2.0{sub {minus}1.0}{sup +0.5} ms, respectively. These data compare as follows with preliminary values reported by Quint {ital et} {ital al}.: {ital E}{sub {alpha}}=7482(20) keV and a {ital T}{sub 1/2}=9.6{sub {minus}4.4}{sup +47} ms. While the two energies agree, the half-lives differ by a factor of almost 5. The earlier data yield an {alpha} reduced width which is much smaller than those of neighboring nuclides; our {sup 190}Po energy and half-life result in a width that fits the overall {alpha}-decay-rate systematics in the mass region above the {ital Z}=82 closed shell. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Lawrence Berkeley National Laboratory
• DOE Contract Number: AC03-76SF00098; AC05-84OR21400; FG05-84ER40159; FG05-87ER40361
• OSTI ID: 286836
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALPHA DECAY
ENERGY
HALF-LIFE
MEV RANGE 01-10
NEUTRONS
POLONIUM ISOTOPES
SAMARIUM 144 TARGET
TITANIUM 48 REACTIONS
WIDTH