Excitation Functions for Alpha-Induced Reactions on Manganese-55
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概要
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Excitation functions for the reactions Mn^<55>(α, n)Co^<58>, Mn^<55>(α, 2n)Co^<57>, Mn^<55>(α, 3n)Co^<56>, Mn^<55>(α, α'n)Mn^<54> and Mn^<55>(α, 2pn)Mn^<56> were measured by the activation method using a "stacked-foil" technique, the alpha-particle energies ranging from 10MeV to 40MeV. Bombardments were made with the alpha-particle beam of 32MeV and 40MeV from the 160cm INSJ cyclotron. The beam was collected in a Faraday cup and measured by a current integrator. After bombardments, manganese, cobalt and iron were chemically separated. The disintegration rates of product nuclei Co^<58>, Co^<57>,Co^<56> and Mn^<54> were obtained by the gamma-ray scintillation spectrometry, while that of Mn^<56> by a calibrated end-window type Geiger counter. The reaction cross section was found to agree with calculated value for a nuclear radius constant γ_0 of 1.7 × 10^<-13>cm. Competition between different reactions was analyzed in terms of the statistical model of nuclear reaction by use of a level density expression of ω = c exp [2(α_<E>)1/2] and it agrees with the calculated value for α = 2MeV^<-1>.
- 社団法人日本物理学会の論文
- 1960-04-05
著者
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Mikumo Takashi
Institute For Nuclear Study University Of Tokyo:(present)faculty Of Science Tokyo University Of Educ
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Amano Hiroshi
Institute For Nuclear Study University Of Tokyo:the Research Institute For Iron Steel And Other Meta
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FURUKAWA Michiaki
Institute for Nuclear Study, University of Tokyo
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TANAKA Shigeo
Institute for Nuclear Study, University of Tokyo
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Furukawa Michiaki
Institute For Nuclear Study University Of Tokyo
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Iwata Shiro
Institute For Nuclear Study University Of Tokyo:faculty Of Science Osaka University
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YAGI Masuo
Institute for Nuclear Study, University of Tokyo
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Yagi Masuo
Institute For Nuclear Study University Of Tokyo:radiochemical Laboratory Shizuoka University
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Mikumo Takashi
Institute For Nuclear Study University Of Tokyo
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Tanaka Shigeo
Institute For Nuclear Study University Of Tokyo
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IWATA Shiro
Institute for Nuclear Study, University of Tokyo:Faculty of Science, Osaka University
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YAGI Masuo
Institute for Nuclear Study, University of Tokyo:Radiochemical Laboratory, Shizuoka University
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