Effect of oscillating sheath on near-wall conductivity in Hall thrusters

Daren Yu; Hong Li; Zhiwen Wu; Wei Mao

doi:10.1063/1.2743024

Effect of oscillating sheath on near-wall conductivity in Hall thrusters

Daren Yu, Hong Li^*, Zhiwen Wu, Wei Mao

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The effect of an oscillating sheath on near-wall conductivity has been studied using a model of the incident electron motions with the characteristic parameters of the oscillating sheath quantified. The model predicted an increase in both the frequency of electron-wall collisions and the coefficient of secondary electron emission compared to the steady sheath regime. This effect indicates that near-wall conductivity is enhanced in the oscillating sheath regime.

Original language	English
Article number	064505
Journal	Physics of Plasmas
Volume	14
Issue number	6
DOIs	https://doi.org/10.1063/1.2743024
Publication status	Published - 2007
Externally published	Yes

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Yu, D., Li, H., Wu, Z., & Mao, W. (2007). Effect of oscillating sheath on near-wall conductivity in Hall thrusters. Physics of Plasmas, 14(6), Article 064505. https://doi.org/10.1063/1.2743024

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abstract = "The effect of an oscillating sheath on near-wall conductivity has been studied using a model of the incident electron motions with the characteristic parameters of the oscillating sheath quantified. The model predicted an increase in both the frequency of electron-wall collisions and the coefficient of secondary electron emission compared to the steady sheath regime. This effect indicates that near-wall conductivity is enhanced in the oscillating sheath regime.",

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AU - Li, Hong

AU - Wu, Zhiwen

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AB - The effect of an oscillating sheath on near-wall conductivity has been studied using a model of the incident electron motions with the characteristic parameters of the oscillating sheath quantified. The model predicted an increase in both the frequency of electron-wall collisions and the coefficient of secondary electron emission compared to the steady sheath regime. This effect indicates that near-wall conductivity is enhanced in the oscillating sheath regime.

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Effect of oscillating sheath on near-wall conductivity in Hall thrusters

Abstract

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