Identification of the {gamma} transitions in Tc and Cs products of {sup 252}Cf fission and possible 7/2{sup +}[413] bands in {sup 105{minus}109}Tc isotopes
- Physics Department, Vanderbilt University, Nashville, Tennessee 37235 (United States)
- Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Joint Institute for Nuclear Research, Dubna 141980 (Russia)
- Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee 37835 (United States)
- Department of Physics, Mississippi State University, Mississippi 39762 (United States)
- Idaho National Engineering Laboratory, Idaho Falls, Idaho 83415-2114 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
- Nuclear Engineering Department, University of California, Berkeley, California 94720 (United States)
- University of Michigan, Ann Arbor, Michigan 48104 (United States)
- University Federal do Rio de Janeiro, Rio de Janeiro, CP 68528, RG (Brazil)
Several {gamma} transitions in {sup 105{minus}109}Tc nuclei were identified for the first time from spontaneous fission studies with a {sup 252}Cf source and the Gammasphere. New level schemes are proposed and related to the underlying nuclear structure. Positive parity bands with a large signature splitting observed in {sup 105,107,109}Tc are evidently derived from g{sub 9/2} orbitals and are similar to analogous bands in {sup 103}Rh,{sup 103}Ag, and {sup 99}Y. New {gamma} transitions have also been identified in {sup 139{minus}143}Cs and used to construct level schemes for these isotopes. Correlated-pair fission yields extracted from the data show an appreciable field for the zero neutron {sup 109}Tc/{sup 143}Cs pair. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 603149
- Journal Information:
- Physical Review, C, Vol. 57, Issue 5; Other Information: PBD: May 1998
- Country of Publication:
- United States
- Language:
- English
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