Concentrated ion beam emitted from an enlarged cylindrical-anode-layer Hall plasma accelerator and mechanism

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

doi:10.1063/1.4788697

Author(s)

S. F. Geng
D. L. Tang
C. X. Wang
X. M. Qiu
Paul K. Chu

Detail(s)

Original language	English
Article number	43302
Journal / Publication	Journal of Applied Physics
Volume	113
Issue number	4
Publication status	Published - 28 Jan 2013

Link(s)

DOI	DOI https://doi.org/10.1063/1.4788697 Final Published version
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Attachment(s)	Documents 5804072.pdf Final Published version, 3.08 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, X. M. Qiu, and Paul K. Chu , "Concentrated ion beam emitted from an enlarged cylindrical-anode-layer Hall plasma accelerator and mechanism", Journal of Applied Physics 113, 043302 (2013) and may be found at https://doi.org/10.1063/1.4788697.
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84873620926&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(83e78cbf-9086-41dc-8a85-a138f1f7b3fd).html

Abstract

An enlarged cylindrical-anode-layer Hall plasma accelerator with an outlet diameter of 150 mm is experimentally demonstrated to produce a concentrated ion beam, especially at a high discharge voltage, with a high current utilization efficiency of up to ∼0.9. Numerical investigation based on the three-dimensional particle-in-cell method is performed to study the ion dynamics and elucidate the origin of the ion beam characteristics. The simulation results reveal that the equipotential lines play an important role in the surface near the anode emitting the ions. The ion emitting surface is determined by the magnetic field lines near the anode and the magnetic mirror contributes to the concentrated beam significantly. The high current utilization efficiency results from the appropriate obliquity of the magnetic mirror. © 2013 American Institute of Physics.