Characteristics of two fission modes

Y. Nagame, Y. L. Zhao, I. Nishinaka, S. Goto, D. Kaji, M. Tanikawa, K. Tsukada, M. Asai, H. Haba, M. Sakama, S. Ichikawa, K. Sueki, H. Kudo, H. Nakahara

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Characteristics of nuclear deformation properties at scission of two fission modes, symmetric and asymmetric, are reviewed. Existence of two kinds of scission configurations associated with the symmetric and asymmetric fission modes is pointed out: elongated and compact configurations. Each symmetric and asymmetric scission property is discussed in terms of shape elongation evaluated from fragment total kinetic energy (TKE). Fragment deformation at scission is also discussed based on neutron multiplicity data. From the systematic study of the scission properties in a wide range of actinide fission, the bimodal fission observed in spontaneous fission (SF) of the heavy actinides is interpreted as the result of the presence of the two fission paths of the ordinary asymmetric mode and a strongly shell-influenced symmetric one. The correlation between the fragment shell structures and the asymmetric mass-yield curves is described.

Original languageEnglish
Pages (from-to)681-688
Number of pages8
JournalRadiochimica Acta
Volume89
Issue number11-12
DOIs
Publication statusPublished - Jan 1 2001

Fingerprint

Actinoid Series Elements
fission
cleavage
Kinetic energy
Elongation
Neutrons
fragments
nuclear deformation
configurations
elongation
kinetic energy
neutrons
curves

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry

Cite this

Nagame, Y., Zhao, Y. L., Nishinaka, I., Goto, S., Kaji, D., Tanikawa, M., ... Nakahara, H. (2001). Characteristics of two fission modes. Radiochimica Acta, 89(11-12), 681-688. https://doi.org/10.1524/ract.2001.89.11-12.681

Characteristics of two fission modes. / Nagame, Y.; Zhao, Y. L.; Nishinaka, I.; Goto, S.; Kaji, D.; Tanikawa, M.; Tsukada, K.; Asai, M.; Haba, H.; Sakama, M.; Ichikawa, S.; Sueki, K.; Kudo, H.; Nakahara, H.

In: Radiochimica Acta, Vol. 89, No. 11-12, 01.01.2001, p. 681-688.

Research output: Contribution to journalArticle

Nagame, Y, Zhao, YL, Nishinaka, I, Goto, S, Kaji, D, Tanikawa, M, Tsukada, K, Asai, M, Haba, H, Sakama, M, Ichikawa, S, Sueki, K, Kudo, H & Nakahara, H 2001, 'Characteristics of two fission modes', Radiochimica Acta, vol. 89, no. 11-12, pp. 681-688. https://doi.org/10.1524/ract.2001.89.11-12.681
Nagame Y, Zhao YL, Nishinaka I, Goto S, Kaji D, Tanikawa M et al. Characteristics of two fission modes. Radiochimica Acta. 2001 Jan 1;89(11-12):681-688. https://doi.org/10.1524/ract.2001.89.11-12.681
Nagame, Y. ; Zhao, Y. L. ; Nishinaka, I. ; Goto, S. ; Kaji, D. ; Tanikawa, M. ; Tsukada, K. ; Asai, M. ; Haba, H. ; Sakama, M. ; Ichikawa, S. ; Sueki, K. ; Kudo, H. ; Nakahara, H. / Characteristics of two fission modes. In: Radiochimica Acta. 2001 ; Vol. 89, No. 11-12. pp. 681-688.
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