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References (8)
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High Neutron Multiplicity and Cold Binary and Ternary Spontaneous Fission of252Cf -
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J. Hamilton, A. Ramayya, J. Kormicki, Wen Ma, Q. Lu, D. Shi, J. Deng, S. Zhu, A. Sandulescu, W. Greiner, G. Akopian, Y. Oganessian, G. Popeko, A. Daniel, J. Kliman, V. Polhorský, M. Morhác, J. Cole, R. Aryaeinejad, I. Lee, N. Johnson, F. McGowan (1994)
Zero neutron emission in spontaneous fission of 252Cf: a form of cluster radioactivityJournal of Physics G, 20
- Publisher
- Springer Journals
- Copyright
- Copyright © 2001 by Akadémiai Kiadó
- Subject
- Physics; Nuclear Physics, Heavy Ions, Hadrons
- ISSN
- 1219-7580
- eISSN
- 1588-2675
- DOI
- 10.1556/APH.14.2001.1-4.16
- Publisher site
- See Article on Publisher Site
Abstract
The spontaneous fission of 252Cf has been studied via γ-γ-γ coincidence and γ-γ light charged particle coincidence with Gammasphere. The binary fission yields of correlated Mo−Ba pairs with 0–10 neutron emission have been remeasured. The existence of “hot” fission mode with 8–10 neutron emission seen previously in the Mo−Ba split is confirmed but with lower intensities. By gating on the light charged particles detected in ΔE-E detectors and a γ ray in one partner, the relative yields of correlated pairs in alpha ternary SF with zero to 6n emission are observed for the first time with the distribution peaked at 2.5n. New correlated pairs are identified in 10Be ternary SF. We observed essentially only cold, On 10Be and little, if any, hot, xn 10Be. New γ-γ-γ data with 2.3 times the total events show weak non-Doppler broadened high energy peaks in coincidence with transitions in correlated pairs in 10Be SF shifted by the same 6,1 to 26 keV from the 2-0 energy in 10Be as seen earlier.
Journal
Acta Physica Hungarica Series A, Heavy Ion Physics – Springer Journals
Published: Aug 28, 2009