Discharge current oscillation in Hall thrusters

Naoji Yamamoto, Kimiya Komurasaki, Yoshihiro Arakawa

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

The discharge current oscillation at a frequency range of 10-100 kHz in Hall thrusters was investigated with the objective of extending their stable operational range. The amplitude of oscillation was measured using two types of Hall thrusters - the anode layer type and the magnetic layer type. The oscillation amplitude was found to be sensitive to the applied magnetic flux density, and this result indicated that the oscillation was affected by electron mobility. An oscillation model was proposed based on the experimental results, and the predicted frequency and stable operational range were found to agree qualitatively agreed with the experimental results. This model shows that the momentum transfer corresponding to plasma fluctuation, that is, the viscosity effect, is crucial to achieving stability. Thus, the oscillation amplitude for various acceleration channel configurations - divergent, parallel, and convergent - was measured because the momentum transfer could be affected by the channel configuration. The stable operational range was successfully extended by the adoption of the convergent configuration in each type of Hall thruster, as shown by this model.

Original languageEnglish
Pages (from-to)870-876
Number of pages7
JournalJournal of Propulsion and Power
Volume21
Issue number5
DOIs
Publication statusPublished - Jan 1 2005

Fingerprint

Hall thrusters
Momentum transfer
oscillation
oscillations
momentum transfer
Electron mobility
Magnetic flux
Anodes
configurations
Viscosity
Plasmas
electron mobility
magnetic flux
anodes
viscosity
flux density
frequency ranges
plasma
electron

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Fuel Technology
  • Mechanical Engineering
  • Space and Planetary Science

Cite this

Discharge current oscillation in Hall thrusters. / Yamamoto, Naoji; Komurasaki, Kimiya; Arakawa, Yoshihiro.

In: Journal of Propulsion and Power, Vol. 21, No. 5, 01.01.2005, p. 870-876.

Research output: Contribution to journalArticle

Yamamoto, Naoji ; Komurasaki, Kimiya ; Arakawa, Yoshihiro. / Discharge current oscillation in Hall thrusters. In: Journal of Propulsion and Power. 2005 ; Vol. 21, No. 5. pp. 870-876.
@article{b95c84761c2c4960bd07b16ed57bbd08,
title = "Discharge current oscillation in Hall thrusters",
abstract = "The discharge current oscillation at a frequency range of 10-100 kHz in Hall thrusters was investigated with the objective of extending their stable operational range. The amplitude of oscillation was measured using two types of Hall thrusters - the anode layer type and the magnetic layer type. The oscillation amplitude was found to be sensitive to the applied magnetic flux density, and this result indicated that the oscillation was affected by electron mobility. An oscillation model was proposed based on the experimental results, and the predicted frequency and stable operational range were found to agree qualitatively agreed with the experimental results. This model shows that the momentum transfer corresponding to plasma fluctuation, that is, the viscosity effect, is crucial to achieving stability. Thus, the oscillation amplitude for various acceleration channel configurations - divergent, parallel, and convergent - was measured because the momentum transfer could be affected by the channel configuration. The stable operational range was successfully extended by the adoption of the convergent configuration in each type of Hall thruster, as shown by this model.",
author = "Naoji Yamamoto and Kimiya Komurasaki and Yoshihiro Arakawa",
year = "2005",
month = "1",
day = "1",
doi = "10.2514/1.12759",
language = "English",
volume = "21",
pages = "870--876",
journal = "Journal of Propulsion and Power",
issn = "0748-4658",
publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",
number = "5",

}

TY - JOUR

T1 - Discharge current oscillation in Hall thrusters

AU - Yamamoto, Naoji

AU - Komurasaki, Kimiya

AU - Arakawa, Yoshihiro

PY - 2005/1/1

Y1 - 2005/1/1

N2 - The discharge current oscillation at a frequency range of 10-100 kHz in Hall thrusters was investigated with the objective of extending their stable operational range. The amplitude of oscillation was measured using two types of Hall thrusters - the anode layer type and the magnetic layer type. The oscillation amplitude was found to be sensitive to the applied magnetic flux density, and this result indicated that the oscillation was affected by electron mobility. An oscillation model was proposed based on the experimental results, and the predicted frequency and stable operational range were found to agree qualitatively agreed with the experimental results. This model shows that the momentum transfer corresponding to plasma fluctuation, that is, the viscosity effect, is crucial to achieving stability. Thus, the oscillation amplitude for various acceleration channel configurations - divergent, parallel, and convergent - was measured because the momentum transfer could be affected by the channel configuration. The stable operational range was successfully extended by the adoption of the convergent configuration in each type of Hall thruster, as shown by this model.

AB - The discharge current oscillation at a frequency range of 10-100 kHz in Hall thrusters was investigated with the objective of extending their stable operational range. The amplitude of oscillation was measured using two types of Hall thrusters - the anode layer type and the magnetic layer type. The oscillation amplitude was found to be sensitive to the applied magnetic flux density, and this result indicated that the oscillation was affected by electron mobility. An oscillation model was proposed based on the experimental results, and the predicted frequency and stable operational range were found to agree qualitatively agreed with the experimental results. This model shows that the momentum transfer corresponding to plasma fluctuation, that is, the viscosity effect, is crucial to achieving stability. Thus, the oscillation amplitude for various acceleration channel configurations - divergent, parallel, and convergent - was measured because the momentum transfer could be affected by the channel configuration. The stable operational range was successfully extended by the adoption of the convergent configuration in each type of Hall thruster, as shown by this model.

UR - http://www.scopus.com/inward/record.url?scp=26244443929&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=26244443929&partnerID=8YFLogxK

U2 - 10.2514/1.12759

DO - 10.2514/1.12759

M3 - Article

AN - SCOPUS:26244443929

VL - 21

SP - 870

EP - 876

JO - Journal of Propulsion and Power

JF - Journal of Propulsion and Power

SN - 0748-4658

IS - 5

ER -