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Title: Ternary fission of nuclei into comparable fragments

The problem of nuclear fission into three comparable fragments is considered. A mechanism of true ternary fission is proposed. In contrast to sequential fission, where the three fragments arise upon two sequential events of binary fission, the mechanism in question relies on a scenario that originally involves fission into three fragments. This mechanism is driven by a hexadecapole deformation of the fissioning nucleus, in contrast to binary fission associated with quadrupole vibrations of the nuclear surface. The fragment-mass ratios are estimated. The dynamics of formation of collinear fragments and their subsequent motion in opposite directions is traced. The calculated probability of true ternary fission complies with observed values.
Authors:
 [1]
  1. D.I. Mendeleev Institute forMetrology (VNIIM) (Russian Federation)
Publication Date:
OSTI Identifier:
22472187
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Atomic Nuclei; Journal Volume: 78; Journal Issue: 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BINARY FISSION; COMPARATIVE EVALUATIONS; MASS; NUCLEAR DEFORMATION; NUCLEAR FRAGMENTS; NUCLEI; PROBABILITY; SURFACES; TERNARY FISSION