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Title: On the Possibility of Delayed Fission of Nuclei in the Region of Superheavy Transuranium Elements

Abstract

Delayed fission of atomic nuclei was discovered in 1966. It is observed primarily in odd–odd nuclei for which the energy released in beta decay (K capture) is commensurate with the fission barrier in the nucleus formed after this process. Delayed fission was found in four nuclide regions: neutrondeficient isotopes in the Pb region, neutron-deficient isotopes in the Ac and Pa regions, and neutrondeficient and neutron-rich isotopes of transuranium elements. In the wake of investigations into the properties of isotopes of superheavy transuranium elements, numerous calculations were performed in order to determine the masses of new nuclei and to predict their decay properties. Explored and predicted properties of superheavy-element nuclides, where, for some odd–odd nuclei of transuranium elements, the K-capture energy is commensurate with the fission barriers in the corresponding daughter nuclei formed after K capture, are analyzed. Estimates of the delayed-fission probability are presented for some isotopes of elements whose charge number Z ranges from 103 to 107.

Authors:
 [1]
  1. Joint Institute for Nuclear Research (Russian Federation)
Publication Date:
OSTI Identifier:
22761715
Resource Type:
Journal Article
Journal Name:
Physics of Atomic Nuclei
Additional Journal Information:
Journal Volume: 81; Journal Issue: 4; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-7788
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ACTINIUM; DELAYED NEUTRONS; FISSION; FISSION BARRIER; K CAPTURE; LEAD; NEUTRON-DEFICIENT ISOTOPES; NEUTRON-RICH ISOTOPES; ODD-ODD NUCLEI; PROBABILITY; PROTACTINIUM; TRANSACTINIDE ELEMENTS

Citation Formats

Skobelev, N. K., E-mail: skobelev@jinr.ru. On the Possibility of Delayed Fission of Nuclei in the Region of Superheavy Transuranium Elements. United States: N. p., 2018. Web. doi:10.1134/S1063778818040191.
Skobelev, N. K., E-mail: skobelev@jinr.ru. On the Possibility of Delayed Fission of Nuclei in the Region of Superheavy Transuranium Elements. United States. doi:10.1134/S1063778818040191.
Skobelev, N. K., E-mail: skobelev@jinr.ru. Sun . "On the Possibility of Delayed Fission of Nuclei in the Region of Superheavy Transuranium Elements". United States. doi:10.1134/S1063778818040191.
@article{osti_22761715,
title = {On the Possibility of Delayed Fission of Nuclei in the Region of Superheavy Transuranium Elements},
author = {Skobelev, N. K., E-mail: skobelev@jinr.ru},
abstractNote = {Delayed fission of atomic nuclei was discovered in 1966. It is observed primarily in odd–odd nuclei for which the energy released in beta decay (K capture) is commensurate with the fission barrier in the nucleus formed after this process. Delayed fission was found in four nuclide regions: neutrondeficient isotopes in the Pb region, neutron-deficient isotopes in the Ac and Pa regions, and neutrondeficient and neutron-rich isotopes of transuranium elements. In the wake of investigations into the properties of isotopes of superheavy transuranium elements, numerous calculations were performed in order to determine the masses of new nuclei and to predict their decay properties. Explored and predicted properties of superheavy-element nuclides, where, for some odd–odd nuclei of transuranium elements, the K-capture energy is commensurate with the fission barriers in the corresponding daughter nuclei formed after K capture, are analyzed. Estimates of the delayed-fission probability are presented for some isotopes of elements whose charge number Z ranges from 103 to 107.},
doi = {10.1134/S1063778818040191},
journal = {Physics of Atomic Nuclei},
issn = {1063-7788},
number = 4,
volume = 81,
place = {United States},
year = {2018},
month = {7}
}