Spallation of Tantalum,Tungsten and Gold by 12-GeV Protons

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概要

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• Formation cross sections of spallation products in the nuclear reactions of tan-talum, tungsten, and gold by 12 GeV protons were measured with the y-ray spec-troscopy for 58, 73, and 80 pro<luct nuclides, respectively. The present data were usedto obtain the charge-dispersion and mass-yield curves by the least-squares analysis inthe mass region of product nuclides from 40 to 110 for tantalum and tungsten andfrom 40 to 130 for gold. The N / Z ratio at the charge-dispersiouc peak was determinedto be approximately 1.23 for all the three targets which have the average N /'Z, ratio of1.49. This result is consistent with that obtained for medium-mass targets. The mass-yield curves are compared with results of Monte Carlo simulations of an intranuclearcascade-evaporation model. They are in qualitative agreement in the mass range ofthe spallation products greater than a half of the target mass.

• 社団法人日本物理学会の論文
• 1988-09-15

著者

• Asano Y

  Hokkaido Univ. Sapporo Jpn

• Asano Yuzo

  Institute of Applied Physics, University of Tsukuba

• Mori Shigeki

  Institute of Applied Physics, University of Tsukuba

• SAKANO Misao

  Institute of Applied Physics,University of Tsukuba

• Asano Y

  Hokkaido Univ. Sapporo

• Mori Shigeki

  Institute Of Applied Physics University Of Tsukuba

• Asano Yuzo

  Institute Of Applied Physics University Of Tsukuba

• SAKANO Misao

  University of Tsukuba

• KARIYA Hiroyuki

  Institute of Applied Physics,University of Tsukuba

• OKANO Makoto

  Institute of Applied Physics,University of Tsukuba

• ASANO Yoshihiro

  NTT Electrical communications Laboratories

• Asano Y

  Fukui Univ. Technol. Fukui

• Asano T

  Hokkaido Univ. Sapporo

• Okano M

  Institute Of Applied Physics University Of Tsukuba

• Sakano Misao

  Department Of Physics Faculty Of Science Shinshu University

• Shimada Motoyuki

  National Laboratory For High Energy Physics Kek

• Kariya Hiroyuki

  Institute Of Applied Physics University Of Tsukuba:sumitomo Heavy Industries Ltd.

• Okano Makoto

  Institute for Solid State Physics, University of Tokyo, and CREST, JST, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan

• Sakano Misao

  Institute of Applied Physics, University of Tsukuba, Ibaraki 305

• Okano Makoto

  Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan

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