Absolute Cross Section of the Reaction Cu^<63>(γ, n)Cu^<62> for Lithium Gamma Rays

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概要

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• The cross section of the reaction Cu^<63>(γ, n)Cu^<62> for Li gamma rays was measured in order to discover some causes of the existing discrepancy between values measured by bremsstrahlungs and by nuclear gamma rays. Experimental procedures used in this experiment were much improved as compared with those used in previous measurements performed in our laboratory for the same purpose. The present results were as follows: ^σ<L>i-γ = 62±4mb for Li gamma rays, and σ_<17.6> = 76±5mb for 17.6Mev γ-rays. This value is about 30 per cent lower than the average cross section value determined by the photon difference method in several bremsstrahlungs' experiments. Therefore, we suggest that the modified spectrum method proposed by Penfold and Leiss might eliminate not only the above-mentioned discrepancy but also the discrepancy between theoretical and experimental values in the form σ_<-2> 〓 ∫σ_<E>^<-2>dE, as pointed out by Levinger.

• 社団法人日本物理学会の論文
• 1960-11-05

著者

• MASAIKE Akira

  Department of Physics, 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

• MASUDA Yoshiko

  Department of Surgery, National Hospital Organization Kumamoto Medical Center

• YATA Minoru

  Department of Physics, Faculty of Science, Kyoto University

• YASUMI Shinjiro

  Department of Physics, Faculty of Science, Kyoto University

• Yata Minoru

  Department Of Physics Faculty Of Science Kyoto University:(present)sumitomo Electric Industries Co.

• Masuda Yoshiko

  Department Of Physics Faculty Of Science Kyoto University

• Yasumi Shinjiro

  Department Of Physics Faculty Of Science Kyoto University

• Yasumi Shinjiro

  Department Of Physics Faculity Of Science Kyoto University

• Yasumi S.

  Department Of Physics Faculty Of Science Kyoto University

• TAKAMATSU Kunio

  Department of Engineering, Miyazaki University

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