Characteristics of the asymmetric mass distribution in proton-induced fission of actinides

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

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Abstract

To study the correlation between fragment mass distributions and shell structures of fission fragments, fragment mass and energy distributions in proton-induced fission of 232Th and uranium isotopes, 233,235,238U, were precisely measured using a double-TOF method. It was found that the lighter side of the heavier wing of asymmetric mass distributions shifts to larger fragment mass number corresponding to the N/Z value of the fissioning nucleus. The results are explained qualitatively by the change of the most probable mass number of fission fragments of Z = 50 proton-shell.

Original languageEnglish
Pages (from-to)73-76
Number of pages4
JournalJournal of Radioanalytical and Nuclear Chemistry
Volume255
Issue number1
DOIs
Publication statusPublished - Jan 1 2003
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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    Goto, S., Kaji, D., Nishinaka, I., Nagame, Y., Ichikawa, S., Tsukada, K., Asai, M., Haba, H., Mitsuoka, S., Nishio, K., Sakama, M., Zhao, Y. L., Sueki, K., Tanikawa, K., Takamiya, K., Kudo, H., & Nakahara, H. (2003). Characteristics of the asymmetric mass distribution in proton-induced fission of actinides. Journal of Radioanalytical and Nuclear Chemistry, 255(1), 73-76. https://doi.org/10.1023/A:1022271529219