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

doi:10.1524/ract.2001.89.11-12.681

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

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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 language	English
Pages (from-to)	681-688
Number of pages	8
Journal	Radiochimica Acta
Volume	89
Issue number	11-12
DOIs	https://doi.org/10.1524/ract.2001.89.11-12.681
Publication status	Published - 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physical and Theoretical Chemistry

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10.1524/ract.2001.89.11-12.681

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@article{c6485e0020204543bf4da002fb426ed6,

title = "Characteristics of two fission modes",

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.",

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

year = "2001",

doi = "10.1524/ract.2001.89.11-12.681",

language = "English",

volume = "89",

pages = "681--688",

journal = "Radiochimica Acta",

issn = "0033-8230",

publisher = "R. Oldenbourg",

number = "11-12",

}

TY - JOUR

T1 - Characteristics of two fission modes

AU - Nagame, Y.

AU - Zhao, Y. L.

AU - Nishinaka, I.

AU - Goto, S.

AU - Kaji, D.

AU - Tanikawa, M.

AU - Tsukada, K.

AU - Asai, M.

AU - Haba, H.

AU - Sakama, M.

AU - Ichikawa, S.

AU - Sueki, K.

AU - Kudo, H.

AU - Nakahara, H.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

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U2 - 10.1524/ract.2001.89.11-12.681

DO - 10.1524/ract.2001.89.11-12.681

M3 - Article

AN - SCOPUS:0035708844

SN - 0033-8230

VL - 89

SP - 681

EP - 688

JO - Radiochimica Acta

JF - Radiochimica Acta

IS - 11-12

ER -

Characteristics of two fission modes

Abstract

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