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

doi:10.1023/A:1022271529219

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

Research output: Contribution to journal › Article › peer-review

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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 language	English
Pages (from-to)	73-76
Number of pages	4
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	255
Issue number	1
DOIs	https://doi.org/10.1023/A:1022271529219
Publication status	Published - Jan 1 2003
Externally published	Yes

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

UN SDGs

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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

Goto, S, Kaji, D, Nishinaka, I, Nagame, Y, Ichikawa, S, Tsukada, K, Asai, M, Haba, H, Mitsuoka, S, Nishio, K, Sakama, M, Zhao, YL, 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, vol. 255, no. 1, pp. 73-76. https://doi.org/10.1023/A:1022271529219

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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.",

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AU - Goto, S.

AU - Kaji, D.

AU - Nishinaka, I.

AU - Nagame, Y.

AU - Ichikawa, S.

AU - Tsukada, K.

AU - Asai, M.

AU - Haba, H.

AU - Mitsuoka, S.

AU - Nishio, K.

AU - Sakama, M.

AU - Zhao, Y. L.

AU - Sueki, K.

AU - Tanikawa, K.

AU - Takamiya, K.

AU - Kudo, H.

AU - Nakahara, H.

PY - 2003/1/1

Y1 - 2003/1/1

N2 - 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.

AB - 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.

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

Abstract

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