L. V. Titova, S. G. Kadmensky, Ya. O. Otvodenko, E. S. Petrykina
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Low-Energy Ternary Fission of Actinide Nuclei with the Emission of Nucleons and Light Nuclei
Probabilities that are close for the (s, f) and (nth, f) fission reactions of the corresponding nuclei are estimated for the formation of third particles in the neck of a fissile nucleus. The probabilities are obtained using formulas for calculating the widths of spontaneous and thermal neutron-induced ternary fission of atomic nuclei with the emission of light charged particles. The formulas are based on an approach that views ternary fission as a virtual process, in combination with experimental energy distributions of α particles, hydrogen isotopes, and 6He nuclei in the ternary fission of actinide nuclei. It is shown that spontaneous and induced ternary fissions of actinide nuclei with the emission of light charged particles and nucleons occurs from close configurations of the fissile nucleus. The bonding energy of the thermal neutron introduced into the fissile compound nucleus in reactions (nth, f) is added to the energy of deformation the fissile nucleus but not to the kinetic energy of the third light particle.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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