Breathing oscillations in enlarged cylindrical-anode-layer Hall plasma accelerator

S. F. Geng; D. L. Tang; C. X. Wang; R. K Y Fu; X. M. Qiu; Paul K. Chu

doi:10.1063/1.4807584

Breathing oscillations in enlarged cylindrical-anode-layer Hall plasma accelerator

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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3 Scopus Citations

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Author(s)

S. F. Geng
D. L. Tang
C. X. Wang
R. K Y Fu
X. M. Qiu

Detail(s)

Original language	English
Article number	203302
Journal / Publication	Journal of Applied Physics
Volume	113
Issue number	20
Publication status	Published - 2013

Link(s)

DOI	DOI https://doi.org/10.1063/1.4807584 Final Published version
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Attachment(s)	Documents 5808173.pdf Final Published version, 2.12 MB, PDF Publisher's Copyright Statement COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in S. F. Geng, D. L. Tang, C. X. Wang, R. K. Y. Fu, X. M. Qiu, and Paul K. Chu , "Breathing oscillations in enlarged cylindrical-anode-layer Hall plasma accelerator", Journal of Applied Physics 113, 203302 (2013) and may be found at https://doi.org/10.1063/1.4807584.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84879108027&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(d656ff7e-02e7-4cc9-a31b-0fdb3feec6b5).html

Abstract

Breathing oscillations in the discharge of an enlarged cylindrical-anode- layer Hall plasma accelerator are investigated by three-dimensional particle-in-cell (PIC) simulation. Different from the traditional breathing mode in a circular Hall plasma accelerator, the bulk plasma oscillation here is trigged by the potential barrier generated by the concentrated ion beam and substantial enough to compete with the anode voltage. The electric field near the anode is suppressed by the potential barrier thereby decreasing the electron density by ∼36%. The discharge is restored to the normal level after the concentrated beam explodes and then it completes one cycle of electro-driven breathing oscillation. The breathing mode identified by the PIC simulation has a frequency range of ∼156 kHz-∼250 kHz and does not vary monotonically with the discharge voltage. © 2013 AIP Publishing LLC.