Axial structure of a plasma column produced by a large-amplitude electromagnetic surface wave
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- I. Zhelyazkov
- Faculty of Physics, Sofia University, BG-1126 Sofia and Department of Physics, Institute for Foreign Students, BG-1111 Sofia, Bulgaria
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- E. Benova
- Department of Physics, Institute for Foreign Students, BG-1111 Sofia, Bulgaria
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- V. Atanassov
- Institute of Electronics, Bulgarian Academy of Sciences, BG-1784 Sofia, Bulgaria
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<jats:p>Electromagnetic surface waves in the rf and microwave frequency range can be used to produce long large/small-diameter plasma columns. We propose a theory of surface-wave-produced plasmas at two different low-pressure gas-discharge regimes, diffusion and recombination, respectively. For a given regime the axial plasma density profile is specified by two quantities: a numerical parameter σ=ωR/c (ω being the wave frequency, R the tube radius, and c denoting the speed of light) and the collision frequency ν (ν≪ω). Our theory predicts the magnitude of the axial electron number density gradient. The very good agreement between the experimentally measured plasma density gradients and the theoretically calculated ones for diffusion-controlled surface-wave-produced plasma columns confirms the adequacy of the proposed model.</jats:p>
収録刊行物
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- Journal of Applied Physics
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Journal of Applied Physics 59 (5), 1466-1472, 1986-03-01
AIP Publishing
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詳細情報 詳細情報について
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- CRID
- 1363670318582197504
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- NII論文ID
- 30015831001
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- NII書誌ID
- AA00693547
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- DOI
- 10.1063/1.336501
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- ISSN
- 10897550
- 00218979
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