Decays of Photoreaction Products of Selenium

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概要

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• The decay properties of Se^<73m>, Se^<81> and As^<79> have been studied by scintillation methods. Gamma-ray spectra showed lines of energy 170, 275, 335, 410, 480, 550, 650 and 840KeV belonging to the decay of Se^<81>. The decay scheme of Se^<81> was proposed with the aid of single and coincidence measurements of radiations. The mass difference between the ground states of Se^<81> and Br^<81> is represented by the 1.56-MeV beta ray. In As^<79>, new gamma rays of 360, 440, 725 and 890KeV were found. Beta-gamma and gamma-gamma coincidence measurements confirmed that a 44-min activity in selenium is attributed to Se^<78m>. It is found that the beta-decay energy is 1.86-MeV and that there is no appreciable gamma ray.

• 社団法人日本物理学会の論文
• 1960-12-05

著者

• Kuroyanagi Tokihiro

  Department Of Physics Faculty Of Science Kyushu University

• Kuroyanagi T.

  Department of Physics, Tohoku University

• KUROYANAGI Tokihiro

  Department of Physics, Tohoku University:(Present)Japan Atomic Energy Research Institute

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• Three New Isotopes, Co^, Ga^, and As^
• New Activities in Rare Earth Region Produced by the (γ, p) Reactions
• Some New Activities Produced by Fast Neutron Bombardments
• Decay of Ir^ and Ir^
• Decays of Photoreaction Products of Selenium

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