静电约束放电源的电子提取

Proceedings of the Sixteenth National Radio Science Conference. NRSC'99 (IEEE Cat. No.99EX249) Pub Date : 1999-02-23 DOI:10.1109/NRSC.1999.760947

O. Moustafa

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引用次数: 0

摘要

通过在聚焦电极和法拉第杯上施加大于等离子体电位的电势，从静电约束放电源中提取电子束电流。考虑了汇聚磁场、聚焦电压和压力对提取的电子束电流的影响。在2/spl × /10/sup -4/ torr的压力下，在轴向磁场为500高斯的3 kV聚焦电压下，提取了密度为6.2 mA/cm/sup 2/的195 /spl mu/A的电子电流。

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Electron extraction from the electrostatically confined discharge source

Electron beam current has been extracted from the electrostatically confined discharge source by applying a potential greater than the plasma potential on the focusing electrode and the Faraday cup. The effect of a convergent magnetic field, focusing electrical voltage and pressure on the extracted electron beam current have been taken into consideration. An electron current of the order of 195 /spl mu/A corresponding to a density of 6.2 mA/cm/sup 2/ has been extracted at a pressure of 2/spl times/10/sup -4/ torr, and 3 kV focusing voltage with an axial magnetic field of the order of 500 Gauss.

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Proceedings of the Sixteenth National Radio Science Conference. NRSC'99 (IEEE Cat. No.99EX249)

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