Radial Profiles of Electron Density and Current Components at Cathode Surface in LaB_6 Hollow Cathode Arc
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概要
- 論文の詳細を見る
Experimental studies on a hydrogen-fed LaB_6 hollow cathode arc have been pursued. The plasma parameter in the cathode has been measured by a Langmuir probe. The radial variation in the electron density inside the cathode was calculated using the continuity and momentum equations, showing good agreement with the experimental results. The electron density at the cathode surface was estimated to be 15%-20% of that at the cathode axis. It was also found from the current balance that the arc current components at the cathode surface consist of a thermionic current which takes into account the Schottky effect, the ion current and the secondary electron current induced by ion bombardment. The ion current and the cathode surface is larger than the electron current emitted from the cathode.
- 社団法人応用物理学会の論文
- 1987-06-20
著者
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Suzuki Setsuo
Energy And Mechanical Research Laboratories Research And Development Center Toshiba Corporation
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Suzuki Setsuo
Energy Science And Technology Laboratory Toshiba R&d Center
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MORIMIYA Osami
Energy and Mechanical Research Laboratories, Research and Development Center, Toshiba Corporation
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ASANO Toshiaki
Toshiba Fuchu Works
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Morimiya Osami
Energy Science And Technology Laboratory Toshiba R&d Center
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