Microwave Radiation from a Plasma in a Magnetic Field
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概要
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The microwave radiations from a dc discharge plasma in a magnetic field were studied. The experimental results showed that the resonant radiations of the extraordinary wave, propagating perpendicular to a magnetic field, were observed not only at ω=(ω_p^2+ω_b^2)^<1/2>, but also near the cyclotron harmonics. On the other hand, it was shown that the dispersion relation for the plasma type oscillations derived by Bernstein had a harmonic structure : In our experimental condition their dispersion curve was divided into many branches, each of which approched asymptotically to the curves given by ω^2=ω_p^2+ω_b^2 and by ω=n ω_b (n being an integer). The resonant radiation detected was interpreted as the plasma type radiation, above mentioned. The gaps in the radiation spectrum at the cyclotron harmonics were not measured in our discharge plasmas. Further, the number of the successive harmonics in a radiation increased with decreasing the gas pressure, independently of the kind of gas used.
- 核融合科学研究所の論文
著者
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Kubo Hiroshi
Yoshida College Kyoto University
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Tanaka Shigetoshi
Institute Of Plasma Physics Nagoya University
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Tanaka Shigetoshi
Research Information Center Institute Of Plasma Physics Nagoya University
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MITANI Kenji
Yoshida College, Kyoto University
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Mitani Kenji
Yoshida College Kyoto University
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KUBO Hiroshi
Research and Development Laboratories, Recording Media Products Division, Fuji Photo Film Co., Ltd
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TANAKA S.
Institute of Plasma Physics, Nagoya University
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MITANI Kenji
Research Information Center, Institute of Plasma Physics, Nagoya University
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Kubo Hiroshi
Research & Development Center Recording Media Products Division Fuji Photo Film Co. Ltd.
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KUBO Hiroshi
Yoshida College, Kyoto University
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