Anomalous Microwave Radiation at Cyclotron Resonance in Partially Ionized Plasmas

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概要

• 論文の詳細を見る

• An anomalous microwave radiation from a dc discharge plasma in a magnetic field was observed. The intensity was extremely large compared with that of black body (about 1×10^4°K) and amounted to the power radiated from the plasma in the thermal equilibrium equivalent to 5.5×10^6°K in the case of Kr and 1.5×10^6°K in the case of Xe. This radiation occurred very sharply at cyclotron resonance field, the width being by one order smaller than that of normal cyclotron radiation. The radiation was observed in Xe, Kr and Ar plasmas in the pressure range of 1×10^<-1>〜5 mmHg, but not in Ne and He plasmas at any pressure. Further, the radiation was observed when the whole tube was placed in a longitudinal magnetic field, but not when only a part of the positive column was immersed in the field. It is discussed whether this anomalous radiation can be interpreted as a phenomenon of the negative radiation temperature at cyclotron resonance in partially ionized plasmas.

• 社団法人日本物理学会の論文
• 1963-12-05

著者

• TANAKA S.

  Department of Periodontology, School of Dentistry, Aichi-Gakuin University

• Kubo Hiroshi

  Yoshida College Kyoto University

• TERUMICHI Yasushi

  Department of Physics,Faculty of Science,Kyoto University

• TANAKA Shigetoshi

  Department of Physics,Faculty of Science,Kyoto University

• Tanaka Shigetoshi

  Institute Of Plasma Physics Nagoya University

• Tanaka Shigetoshi

  Department Of Physics Faculty Of Science Kyoto University

• MITANI Kenji

  Yoshida College, Kyoto University

• Mitani Kenji

  Yoshida College Kyoto University

• TANAKA S.

  Institute of Plasma Physics, Nagoya University

• Terumichi Yasushi

  Department Of Physics Faculty Of Science

• Terumichi Yasushi

  Department Of Physics Faculity Of Science Kyoto University

• KUBO Hiroshi

  Yoshida College, Kyoto University

• Tanaka S.

  Department of Applied Physics, Faculty of Engineering University of Tokyo

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