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Sheet Plasma Produced by Hollow Cathode Discharge |
| ZHANG Long;ZHANG Hou-Xian;YANG Xuan-Zong;FANG Chun-Hua;QIAO Bin;WANG Long |
| Institute of Physics, Chinese Academy of Sciences, Beijing 100080
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| Cite this article: |
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ZHANG Long, ZHANG Hou-Xian, YANG Xuan-Zong et al 2003 Chin. Phys. Lett. 20 1984-1987 |
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Abstract A sheet plasma is produced by a hollow cathode discharge under an axial magnetic field. The plasma is about 40 cm in length, 4 cm in width and 1 cm in thickness. The electron density is about 108cm-3. The hollow cathode is made to be shallow with a large opening, which is different from the ordinary deep hollow cathode. A Langmuir probe is used to detect the plasma. The electron density and the spatial distribution of the plasma changed when the voltage, the pressure and the magnetic field vary. A peak and a data fluctuation at about 200 G-300 G are observed in the variation of electron density (or thickness of the sheet plasma) with the magnetic field. Our work will be helpful to characterize the sheet plasma and make the production of dense sheet plasma more controllable.
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| Keywords:
52.80.-s
52.90.+z
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Published: 01 November 2003
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| PACS: |
52.80.-s
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(Electric discharges)
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52.90.+z
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(Other topics in physics of plasmas and electric discharges)
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