A MECHANISM OF TERNARY NUCLEAR-FISSION

Authors
Citation
Va. Shigin, A MECHANISM OF TERNARY NUCLEAR-FISSION, Physics of atomic nuclei, 56(9), 1993, pp. 1173-1178
Citations number
15
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
ISSN journal
10637788
Volume
56
Issue
9
Year of publication
1993
Pages
1173 - 1178
Database
ISI
SICI code
1063-7788(1993)56:9<1173:AMOTN>2.0.ZU;2-2
Abstract
A mechanism of ternary nuclear fission is described, using a statistic al approach to the final stage of nuclear fission before the fragment separation, and also a surface potential well for the interaction of a n alpha particle or other light nuclei with the fragments. After its p roduction in the equatorial region of the touching fragments, the thir d light nucleus, as the fragments separate, first moves into the gap b etween the fragments. Then, once it is in the gap, it climbs up the ou ter slopes of the potential wells of the two fragments, reaching the w ell edges. After this, the light fragment leaves the potential well of one of the fragments and descends into the potential well of the othe r. After undergoing reflection from the inner wall of the potential we ll of this fragment, it surmounts the outer barrier and travels toward the neighboring fragment. It is then accelerated in the Coulomb field of the two fragments. Some light nuclei fall into the potential gutte r surrounding the fragment and leave the fragment in the direction of its motion. The mechanism makes it possible to find the momentum distr ibution of light nuclei before acceleration in the Coulomb field of th e fragments. The mechanism predicts the presence, in ternary fission, of two components of light nuclei with different properties, which ari se in their reflection from different fragments. Experiments to verify this mechanism are proposed.