Structure of neutron-rich nuclei and rare processes in spontaneous fission of {sup 252}Cf

Journal Article · Mon Dec 21 04:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.57359· OSTI ID:21207838

Ramayya, A V; Hamilton, J H; Hwang, J K ^[1]

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1. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennesse 37295 (United States)

The high selectivity and sensitivity offered by large detector arrays such as Gammasphere and Eurogam enable one to identify gamma rays from individual neutron-rich nuclei produced in the spontaneous fission (SF) of {sup 252}Cf and {sup 248}Cm. We have identified new {gamma} transitions in {sup 101,102,103}Nb, {sup 98,100}Y, {sup 103,107,109}Mo and {sup 109,111}Ru. In Nb nuclei we observed pairing-free rotational bands with J{sub exp}/J{sub rigid}{approx_equal}1. In {sup 103}Mo and {sup 109,111}Ru we identified bands with close doublet structures which may be a general consequence of rotation alignment for configurations of half-filled j-shells, which are weakly coupled to the deformed shapes. In addition, rare processes such as cold neutronless binary fission, {alpha}-accompanied ternary fission and {sup 10}Be-accompanied ternary fission are observed.

• OSTI ID: 21207838
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 455; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 10
BINARY FISSION
CALIFORNIUM 252
CURIUM 248
GAMMA SPECTRA
MOLYBDENUM 103
MOLYBDENUM 109
NEUTRON-RICH ISOTOPES
NIOBIUM 101
NIOBIUM 102
NIOBIUM 103
NUCLEAR STRUCTURE
ROTATIONAL STATES
RUTHENIUM 111
SHELL MODELS
SPONTANEOUS FISSION
TERNARY FISSION
YTTRIUM 100