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Title: Effect of Anode Dielectric Coating on Hall Thruster Operation

Abstract

An interesting phenomenon observed in the near-anode region of a Hall thruster is that the anode fall changes from positive to negative upon removal of the dielectric coating, which is produced on the anode surface during the normal course of Hall thruster operation. The anode fall might affect the thruster lifetime and acceleration efficiency. The effect of the anode coating on the anode fall is studied experimentally using both biased and emissive probes. Measurements of discharge current oscillations indicate that thruster operation is more stable with the coated anode.

Authors:
; ; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Science (SC) (US)
OSTI Identifier:
820110
Report Number(s):
pppl-3888
TRN: US0305687
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 20 Oct 2003
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATION; ANODES; COATINGS; DIELECTRIC MATERIALS; EFFICIENCY; LIFETIME; OSCILLATIONS; PROBES; REMOVAL; THRUSTERS; GAS DISCHARGES; PLASMA-WALL INTERACTION; SHEATH; HALL THRUSTERS

Citation Formats

L. Dorf, Y. Raitses, N.J. Fisch, and V. Semenov. Effect of Anode Dielectric Coating on Hall Thruster Operation. United States: N. p., 2003. Web. doi:10.2172/820110.
L. Dorf, Y. Raitses, N.J. Fisch, & V. Semenov. Effect of Anode Dielectric Coating on Hall Thruster Operation. United States. doi:10.2172/820110.
L. Dorf, Y. Raitses, N.J. Fisch, and V. Semenov. Mon . "Effect of Anode Dielectric Coating on Hall Thruster Operation". United States. doi:10.2172/820110. https://www.osti.gov/servlets/purl/820110.
@article{osti_820110,
title = {Effect of Anode Dielectric Coating on Hall Thruster Operation},
author = {L. Dorf and Y. Raitses and N.J. Fisch and V. Semenov},
abstractNote = {An interesting phenomenon observed in the near-anode region of a Hall thruster is that the anode fall changes from positive to negative upon removal of the dielectric coating, which is produced on the anode surface during the normal course of Hall thruster operation. The anode fall might affect the thruster lifetime and acceleration efficiency. The effect of the anode coating on the anode fall is studied experimentally using both biased and emissive probes. Measurements of discharge current oscillations indicate that thruster operation is more stable with the coated anode.},
doi = {10.2172/820110},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Oct 20 00:00:00 EDT 2003},
month = {Mon Oct 20 00:00:00 EDT 2003}
}

Technical Report:

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