Short-lived isomers in {sup 94}Rb

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.011301· OSTI ID:21192002

Tsekhanovich, I; Dare, J A; Smith, A G; Varley, B J ^[1]; Simpson, G S ^[2]; Urban, W; Soldner, T ^[3]; Jolie, J; Linnemann, A ^[4]; Orlandi, R; Smith, J F ^[5]; Scherillo, A ^[6]; Rzaca-Urban, T; Zlomaniec, A ^[7]; Dorvaux, O; Gall, B J. P.; Roux, B ^[8]

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1. Schuster Laboratory, University of Manchester, Manchester M13 9PL (United Kingdom)
2. Laboratoire de Physique Subatomique et de Cosmologie, F-38026 Grenoble (France)
3. Institut Laue-Langevin, 6 rue J. Horowitz, F-38042 Grenoble (France)
4. Institut fuer Kernphysik, Universitaet zu Koeln, Zuelpicherstr. 77, D-50937 Koeln (Germany)
5. University of the West of Scotland, Paisley PA1 2BE (United Kingdom)
6. Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom)
7. Faculty of Physics, Warsaw University, ul. Hoza 69, 00-681 Warsaw (Poland)
8. Institut de Recherches Subatomiques, CNRS-IN2P3, F-67037 Strasbourg (France)

The medium-spin structure of the neutron-rich, odd-odd nucleus {sup 94}Rb was studied by means of {gamma}-ray spectroscopy. Excited levels were populated in the neutron-induced fission of {sup 235}U and in the spontaneous fission of {sup 252}Cf and {sup 248}Cm. Two isomeric states were found at 1485.2 and 2074.8 keV with half-lives of 18 and 107 ns, respectively. The probable structures of the two isomers involve the fully aligned, proton-neutron configurations [{pi}(g{sub 9/2}) x {nu}(g{sub 7/2})]{sub 8{sup +}} and [{pi}(g{sub 9/2}) x {nu}(h{sub 11/2})]{sub 10{sup -}}, respectively. These new data give information on the single-particle energies in the region.

• OSTI ID: 21192002
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALIFORNIUM 252
CONFIGURATION
CURIUM 248
EXCITED STATES
GAMMA SPECTROSCOPY
HALF-LIFE
ISOMERS
KEV RANGE
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR REACTIONS
ODD-ODD NUCLEI
PARTICLES
PROTONS
RUBIDIUM 94
SPIN
SPONTANEOUS FISSION
URANIUM 235