ホールスラスタの推進性能と加速チャンネル壁近傍のプラズマ特性の関係  [in Japanese] Relationships between Thrust Performance and Plasma Characteristics in the Vicinity of Acceleration Channel Wall of a Hall Thruster  [in Japanese]

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Author(s)

Abstract

For a Hall thruster, the influences of discharge channel wall material on thrust performance and plasma characteristics in the vicinity of the channel wall were investigated. In this study, THT-III 1-kW class Hall thruster was operated with three dielectric channel walls of BN, BNAlN and BNSiN. Discharge current and thrust were measured; specific impulses and thrust efficiencies were evaluated. The plasma potential, channel wall potential, electron temperature and electron number density were measured with an electrostatic single probe. The process of ion generation and acceleration in a Hall thruster was discussed with measured results. The thrust performances were affected by nature of the channel walls. Measured plasma characteristics suggested that the channel wall material affected an ionization region and ion wall losses in the channel, resulting from secondary electron emission. The difference of discharge current between channel materials was considered to be caused by the difference of current density near the inner channel wall.

Journal

  • JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

    JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 54(629), 235-241, 2006-06-05

    THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

References:  15

Codes

  • NII Article ID (NAID)
    10018055198
  • NII NACSIS-CAT ID (NCID)
    AA11307372
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    13446460
  • NDL Article ID
    7996728
  • NDL Source Classification
    ZN25(科学技術--運輸工学--航空機・ロケット)
  • NDL Call No.
    Z74-B503
  • Data Source
    CJP  NDL  J-STAGE 
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