Electron Cyclotron Harmonic Waves Excited in a Helical Electron Beam-Plasma System
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概要
- 論文の詳細を見る
The instabilities of electron cyclotron harmonic waves due to the anisotropy of theelectron velocity distribution produced by the injection of the electron beam per-pendicular to the magnetic field. A strong spontaneous emission growing up 60 dBabove background noise appears near the electron cyclotron harmonics. This instabilitycannot be launched or sychronized by external modulation. The amplitude is usuallynot steady in time, but switches off and on in time intervals of 10 - 100 psec. It growsexponentially 111 time initially, saturates and disappears. This instability can beexplained by dispersion relations of electron cyclotron harmonic waves propagatingperpendicular to the magnetic field in a plasma with a mixture of ring and Maxwellianelectron distributions. The measured growth rate is smaller by 2 to 5 times than thetheoretical ones.
- 社団法人日本物理学会の論文
- 1977-10-15
著者
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Sugaya Reiji
Department Of Physics Faculty Of Science Ehime University
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Sugaya Reiji
Department Of Physics Faculty Of Science Ehime Univerrsity
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Sugawa Masao
Department Of Physics Faculty Of Science Ehime University
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Sugawa Masao
Department Of Physics Faculty Of Science Ehime Univerrsity
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NOMOTO Hisayuki
Department of Physics,Faculty of Science,Ehime University
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Nomoto Hisayuki
Department Of Physics Faculty Of Science Ehime University
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Sugawa Masao
Department of Physics,Faculty of Science,Ehime University
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