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Cold and hot binary and ternary fission yields in the spontaneous fission of 252Cf |
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| Authors: | J. H. Hamilton A. V. Ramayya J. K. Hwang G. M. Ter-Akopian A. V. Daniel J. O. Rasmussen S. -C. Wu R. Donangelo C. J. Beyer J. Kormicki X. Q. Zhang A. M. Rodin A. S. Fomichev G. S. Popeko J. Kliman L. Krupa M. Jandel Yu. Ts. Oganessian G. Chubarian D. Seweryniak R. V. F. Janssens W. C. Ma R. B. Piercey W. Greiner J. D. Cole |
| Affiliation: | 10. Department of Physics, Vanderbilt University, Nashville, USA 1. Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Russia 2. Joint Institute for Heavy Ion Research, Oak Ridge, USA 3. Lawrence Berkeley National Laboratory, USA 4. Instituto de Física, Universidade Federal do Río de Janeiro, Brazil 5. Cyclotron Institute, Texas A & M University, USA 6. Argonne National Laboratory, USA 7. Department of Physics, Mississippi State University, USA 8. Institut für Theoretische Physik, J. W. Goethe Universit?t, Frankfurt M., Germany 9. Idaho National Engineering and Environmental Laboratory, USA |
| Abstract: | The spontaneous fission (SF) of 252Cf has been studied via γ-γ-γ coincidence and light charged particle—γ-γ coincidence with Gammasphere. The yields of correlated Mo-Ba pairs in binary fission with 0–10 neutron emission have been remeasured with an uncompressed cube. The previous hot fission mode with 8–10 neutron emission seen in the Mo-Ba split is found to be smaller than earlier results but still present. New 0n binary SF yields are reported. By gating on the light charged particles detected in ΔE-E detectors and γ-γ coincidence with Gammasphere, the relative yields of correlated pairs in alpha ternary fission with zero to 6n emission are observed for the first time. The peak occurs around the α2n channel. A number of correlated pairs are identified in ternary fission with 10Be as the light charged particle. We observed only cold, 0n 10Be and little, if any, hot, xn 10Be channels. |
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