Potential Energy Surfaces for the Fission of the Actinide Nuclei

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概要

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• Collective potential energy surfaces have been systematically calculated for the symmetric fission of the five isotopes of the elements Th, Pu, Cm, Cf, Fm and No and the eight isotopes of the element U. The calculation is performed on the basis of Strutinsky's prescription in which the liquid drop model of v. Groote and Hilf and the modified two-center harmonic oscillator shell model are used for macroscopic and microscopic parts, respectively. Effects of mass asymmetry at the second saddle point are investigated. The properties of the ground state, the second minimum and the first and second saddle points along the static fission path are discussed in comparison with the results of Moller and Nix. The structure of the potential energy surface is found to come mainly from the shell structure which is strongly related to the distance between the mass centers of the nascent fragments. Special attentions are given to the fragment mass distributions and the constancy of the heavy fragment masses is partially explained on the basis of the properties of the second barrier.

• 理論物理学刊行会の論文
• 1976-01-25

著者

• IWAMOTO Akira

  Tokai Research Establishment, Japan Atomic Energy Research Institute (JAERI)

• IWAMOTO Akira

  Advanced Science Research Center Japan Atomic Energy Research Institute

• Iwamoto Akira

  Japan Atomic Energy Research Institute

• Yamaji Shuhei

  The Institute Of Physical And Chemical Research

• YAMAJI Shuhei

  RI Beam Science Laboratory, RIKEN

• SUEKANE Shota

  Japan Atomic Energy Research Institute

• HARADA Kichinosuke

  Japan Atomic Energy Research Institute

• Suekane Shota

  Japan Atomic Energy Research Institute:faculty Of Science Osaka City University

• HARADA Kazuo

  Kurashiki-Sakuyo University

• HARADA Kazuo

  Division of Life-Information Processing, Junior College Sakuyo

• HARADA Kuni

  Department of Physics, Tohoku University

• Iwamoto Akira

  Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan

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