Angular Distributions of the Reactions Co^<59>(p, α)Fe^<56> at 7.7〜14.1Mev and Mn^<55>(p, α)Cr^<52> at 7.6〜12.9Mev

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概要

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• The angular distributions of the reactions Co^<59>(p, α)Fe^<56> and Mn^<55>(p, α)Cr^<52> resulting in the ground and first excited states of the residual nuclei have been measured at 7.7, 8.7, 9.8, 10.85, 11.9, 13.1 and 14.1Mev and at 7.65, 8.85, 9.65, 10.7, 11.8 and 12.9Mev of the incident proton energy, respectively, making use of proportional counters. Similar behaviour was obtained for these four reactions. For the reaction Co^<59>(p, α)Fe^<56> the forward peak in the angular distribution is prominent at 14.1 and 13.1Mev and disappears gradually with decreasing proton energy, and the angular distribution is approximately 90° symmetrical below about 11Mev. For the reaction Mn^<55>(p, α)Cr^<52> the angular distribution is considerably forward peaked at 12.9 and 11.8Mev and it approximately 90° symmetrical below about 10Mev. It was found that the total cross section integrated from the angular distributions for both reactions decrease smoothly with increasing proton energy. It is considered that the reactions Co^<59>(p, α)Fe^<56> and Mn^<55>(p, α)Cr^<52> resulting in the ground and first excited states of the residual nuclei occur through the similar reaction process, that is, in the lower energy region the compound nucleus process plays a predominant role, although some contribution from the direct interaction process cannot be neglected, and the contribution from the direct interaction process becomes gradually significant with increasing proton energy and is predominant above about 11Mev.

• 社団法人日本物理学会の論文
• 1960-10-05

著者

• KUMABE Isao

  Department of Physics, Faculty of Science, Kyoto University

• OGATA Hiroshi

  Department of Physics, Faculty of Science, Kyoto University

• MASAIKE Akira

  Department of Physics, Kyoto University

• Ogata Hiroshi

  Department Of Nuclear Science Faculty Of Science Kyoto University

• Masaike Akira

  Department Of Physics Faculty Of Science Kyoto University

• Masaike Akira

  Department Of Nuclear Engineering Faculty Of Engineering Kyoto University

• Takamatsu Kunio

  Department Of Physics Faculty Of Science Kyoto University

• Kumabe Isao

  Department Of Nuclear Engineering Faculty Of Engineering Kyushu University

• MASUDA Yoshiko

  Department of Surgery, National Hospital Organization Kumamoto Medical Center

• ITOH Hidehiko

  Department of Nuclear Science, Faculty of Science, Kyoto University

• KAWASHIMA MAUMI

  Department of Physics, Faculty of Science, Kyoto University

• Ogata Hiroshi

  Department Of Agricultural Chemistry College Of Agriculture University Of Osaka

• Itoh Hidehiko

  Department Of Nuclear Science Faculty Of Science Kyoto University

• Masuda Yoshiko

  Department Of Physics Faculty Of Science Kyoto University

• Kawashima Maumi

  Department Of Physics Faculty Of Science Kyoto University

• Ogata H.

  Department Of Biopharmaceutics Meiji College Of Pharmacy

• Ogata H.

  Department of Nuclear Science, Faculty of Science, Kyoto University

• TAKAMATSU Kunio

  Department of Engineering, Miyazaki University

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