New binary and ternary spontaneous modes for 252Cf and new band structures with gammasphere
Creators
- Hamilton, J.H.1
- Ramayya, A.V.1
- Ter-Akopian, G.M.2, 3, 4
- Hwang, J.K.4
- Kormicki, J.4
- Babu, B.R.4
- Sandulescu, A.5, 2, 4
- Florescu, A.5, 2, 4
- Greiner, W.6, 2, 4
- Oganessian, Y.T.3
- Daniel, A.V.3, 4
- Zhu, S.J.7, 2, 4
- Wang, M.G.7
- Ginter, T.4
- Deng, J.K.4
- Ma, W.C.8
- Popeko, G.S.9
- Lu, Q.H.
- Jones, E.
- Dodder, R.
- and others
- 1. Vanderbilt University, Physics Department, Nashville, Tennessee 37235 (United States)
- 2. Joint Institute for Heavy Ion Research, Oak Ridge, Tennessee (United States) 37831
- 3. Joint Institute for Nuclear Research, Dubna 141980 (Russian Federation)
- 4. Vanderbilt University, Physics Department, Nashville, Tennessee (United States) 37235
- 5. Institute of Atomic Physics, Bucharest, P.O. box MG-6 (Romania)
- 6. Institute fuer Theoretische Physik, der Universitat Frankfurt/Main, D-60054 (Germany)
- 7. Tsinghua University, Physics Department, Beijing, (China)
- 8. Mississippi State University, Physics Department, Mississippi State, Mississippi (United States) 39762
- 9. Joint Institute for Nuclear Research, Dubna141980 (Russian Federation)
Description
Prompt γ-γ-γ coincidence studies following spontaneous fission of 252Cf were carried out at Gammasphere first with 36 and later with 72 Ge detectors. Yields and neutron multiplicities were measured directly for Sr-Nd, Zr-Ce Mo-Ba, Ru-Xe, and Pd-Te correlated pairs. A new hot fission mode was discovered going via only 108Mo-144Ba, 107Mo-145Ba, and/or 106Mo-146Ba pairs where one or more of 144,145,146Ba are hyperdeformed at scission with 3:1 axis ratio. For the first time correlated pairs involved in cold ternary fission were observed with the third particle 4He, possibly 6He, and 10Be. The 142-146Ba data provide evidence for the predicted disappearance of stable octupole deformation at high spins. New level structures and isotopes include new octupole deformations, identical bands and other structures. copyright 1997 American Institute of Physics
Additional details
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 392
- Journal Issue
- 1
- Journal Page Range
- p. 309-312
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 14. international conference on the application of accelerators in research and industry
- Dates
- 6-9 Nov 1996
- Place
- Denton, TX (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 30006261
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BARIUM 144; BARIUM 146; CALIFORNIA; CALIFORNIUM 252; CORRELATION FUNCTIONS; DEFORMED NUCLEI; ENERGY LEVELS; FISSION PRODUCTS; GAMMA SPECTRA; NEUTRON SPECTRA; SPONTANEOUS FISSION; SYMMETRY BREAKING
- Descriptors DEC
- ACTINIDE NUCLEI; ALKALINE EARTH ISOTOPES; ALPHA DECAY RADIOISOTOPES; BARIUM ISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CALIFORNIUM ISOTOPES; DECAY; DEVELOPED COUNTRIES; EVEN-EVEN NUCLEI; FISSION; FUNCTIONS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; ISOTOPES; MATERIALS; NORTH AMERICA; NUCLEAR DECAY; NUCLEAR REACTIONS; NUCLEI; RADIOACTIVE MATERIALS; RADIOISOTOPES; SECONDS LIVING RADIOISOTOPES; SPECTRA; SPONTANEOUS FISSION RADIOISOTOPES; USA; YEARS LIVING RADIOISOTOPES
Optional Information
- Secondary number(s)
- CONF-961110--