Multicluster accompanied fission

Journal Article · Tue Jun 01 00:00:00 EDT 1999 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.59.3457· OSTI ID:341441

Poenaru, D N; Gherghescu, R A ^[1]; Poenaru, D N; Greiner, W; Gherghescu, R A ^[2]; Poenaru, D N; Greiner, W; Hamilton, J H; Ramayya, A V ^[3]; Poenaru, D N; Hourany, E ^[4]

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1. National Institute of Physics and Nuclear Engineering, P.O. Box MG-6, RO-76900 Bucharest (Romania)
2. Institut fuer Theoretische Physik der Universitaet, Postfach 111932, D-60054 Frankfurt am Main (Germany)
3. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
4. Institut de Physique Nucleaire, F-91406 Orsay Cedex (France)

In this process a heavy or superheavy nucleus spontaneously breaks into four, five, or six nuclei of which two are asymmetric or symmetric heavy fragments and the others are light clusters, e.g., {alpha} particles, {sup 10}Be, {sup 14}C, {sup 20}O, or combinations of them. Examples are presented for the two-, three-, and four-cluster accompanied cold fission of {sup 252}Cf and {sup 262}Rf, in which the emitted clusters are 2{alpha}, {alpha}+{sup 6}He, {alpha}+{sup 10}Be, {alpha}+{sup 14}C, 3{alpha}, {alpha}+{sup 6}He+{sup 10}Be, 2{alpha}+{sup 6}He, 2{alpha}+{sup 8}Be, 2{alpha}+{sup 14}C, and 4{alpha}. A comparison is made with the recently observed {sup 252}Cf cold binary fission, and cold ternary (accompanied by {alpha} particle or by {sup 10}Be cluster). The strong shell effect corresponding to the doubly magic heavy fragment {sup 132}Sn is emphasized. The most favorable mechanism of such a decay mode should be the emission from an elongated neck formed between the two heavy fragments. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 341441
• Journal Information: Physical Review, C, Vol. 59, Issue 6; Other Information: PBD: Jun 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SPONTANEOUS FISSION
NUCLEAR FRAGMENTATION
CALIFORNIUM 252
ALPHA PARTICLES
HELIUM 6
BERYLLIUM 10
CARBON 14
TIN 132
NUCLEAR DECAY
SHELL MODELS