Effect of Anode Dielectric Coating on Hall Thruster Operation

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Description

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.

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824 Kilobytes pages

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Dorf, L.; Raitses, Y.; Fisch, N.J. & Semenov, V. October 20, 2003.

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Description

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.

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824 Kilobytes pages

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INIS; OSTI as DE00820110

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  • Other Information: PBD: 20 Oct 2003

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  • Report No.: pppl-3888
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/820110 | External Link
  • Office of Scientific & Technical Information Report Number: 820110
  • Archival Resource Key: ark:/67531/metadc734551

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  • October 20, 2003

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • April 15, 2016, 9:58 p.m.

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Dorf, L.; Raitses, Y.; Fisch, N.J. & Semenov, V. Effect of Anode Dielectric Coating on Hall Thruster Operation, report, October 20, 2003; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc734551/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.