Acta Physica Sinica, Volume. 68, Issue 23, 235202-1(2019)

Experimental study of magnetic circuit and antenna position influence on performance of 2 cm electron cyclotron resonance ion thruster

Xu Xia1, Juan Yang1、*, Yi-Zhou Jin2, Guan-Rong Hang2, Yu-Liang Fu1, and Zhan Hu1
Author Affiliations
  • 1School of Astronautics, Northwestern Polytechnical University, Xi’an 710072, China
  • 2Shanghai Institute of Space Propulsion, Shanghai 201112, China
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    Figures & Tables(13)
    Schematic diagram of configuration for discharge chamber of 2 cm ECRIT ion source.2 cm ECRIT离子源放电室示意图
    Distribution of magnetic flux density inside of the discharge chambers: (a) Chamber 1; (b) chamber 2; (c) chamber 3; (d) chamber 4.放电室内磁场分布 (a) 1号放电室; (b) 2号放电室; (c) 3号放电室; (d) 4号放电室
    Distribution of microwave electric field intensity inside of discharge chamber 4: (a) L1 = 2.1 mm, L2 = 0.7 mm; (b) L1 = 2.5 mm, L2 = 0.7 mm; (c) L1 = 2.9 mm, L2 = 0.7 mm.不同天线位置下4号放电室内微波电场分布 (a) L1 = 2.1 mm, L2 = 0.7 mm; (b) L1 = 2.5 mm, L2 = 0.7 mm; (c) L1 = 2.9 mm, L2 = 0.7 mm
    Distribution of electron heating index in ECR layer of different discharge chambers: (a) Chamber 1; (b) chamber 2; (c) chamber 3; (d) chamber 4.不同放电室在ECR区的电子获能指标分布 (a) 1号; (b) 2号; (c) 3号; (d) 4号
    Schematic of the experimental system.实验系统图
    Ion beam current of four ion sources at fixed antenna position.固定天线位置下四种离子源引出的离子束流
    Ion beam current of ion source 4 at different antenna position: (a) L1 = 2.1 mm, L2 = 0.7 mm; (b) L1 = 2.5 mm, L2 = 0.7 mm; (c) L1 = 2.9 mm, L2 = 0.7 mm.不同的天线位置下4号离子源的离子束流引出实验结果 (a) L1 = 2.1 mm, L2 = 0.7 mm; (b) L1 = 2.5 mm, L2 = 0.7 mm; (c) L1 = 2.9 mm, L2 = 0.7 mm
    Voltage for electron extraction vs. electron beam current from different neutralizers: (a) No.1; (b) No.2; (c) No.3; (d) No.4.电子引出电压随电子束流的变化 (a) 1号中和器; (b) 2号中和器; (c) 3号中和器; (d) 4号中和器
    Electron extraction results of neutralizer 2 with different L1 at Pi = 1 W.不同L1尺寸下2号中和器在Pi = 1 W时的电子引出结果
    Ion beam current at the neutralization state.中和时引出离子束流变化规律
    The coupling voltage of neutralizer at the neutraliza-tion state.中和时中和器耦合电压变化规律
    • Table 1.

      Grid geometry.

      栅极结构

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      Table 1.

      Grid geometry.

      栅极结构

      厚度/ mm 孔径/ mm 孔数栅极间距/ mm 电压/V材料
      屏栅0.250.362110.31500不锈钢
      加速栅0.250.22110.3–350
    • Table 2.

      The magnetic circuit structure parameters of four discharge chambers.

      四种放电室的磁路结构参数

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      Table 2.

      The magnetic circuit structure parameters of four discharge chambers.

      四种放电室的磁路结构参数

      放电室外磁环高度H1/mm 外磁环宽度W1/mm 内磁环高度H2/mm 内磁环宽度W2/mm
      1号5.42.05.41.65
      2号5.62.75.81.8
      3号5.72.95.71.8
      4号5.83.05.61.8
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    Xu Xia, Juan Yang, Yi-Zhou Jin, Guan-Rong Hang, Yu-Liang Fu, Zhan Hu. Experimental study of magnetic circuit and antenna position influence on performance of 2 cm electron cyclotron resonance ion thruster[J]. Acta Physica Sinica, 2019, 68(23): 235202-1

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    Paper Information

    Received: Jul. 21, 2019

    Accepted: --

    Published Online: Sep. 17, 2020

    The Author Email:

    DOI:10.7498/aps.68.20191122

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