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The advantages of miniature electron cyclotron resonance ion thruster (ECRIT) for space propulsion are long-life and simple-structure. The magnetic circuit and antenna position of ECRIT are crucial in the electron heating, plasma confinement and transportation process, which affect the beam extraction and the coupling voltage of neutralizer. In this article, the experimental studies on the ion beam extraction and coupling voltage of 2 cm ECRIT with different magnetic circuits and antenna positions are carried out. By comparing the beam extraction characteristics of the ion source and neutralizer of different magnetic circuits, a reasonable magnetic circuit structure is selected. And the influences of different antenna positions on the beam are compared. The influences of the magnetic circuit and antenna position on the performance of ECRIT are summarized to obtain a reasonable thruster structure. The experimental results show that the extracted beam increases with microwave power and xenon mass flow rate increasing. When the spatial position of antenna is fixed, a suitable magnetic circuit structure can increase electron heating and reduce particle loss, which is suitable for extracting ions and reducing the coupling voltage. With a suitable magnetic circuit, there is a suitable antenna position favourable for extracting ions and reducing the coupling voltage. According to the experimental results, the optimal structure of ion source and neutralizer are selected for neutralization experiments. The results show that when the neutralizer works, the beam extraction of the ion source is affected very little. When the neutralizer and ion source operate under the parameters of power and mass flow rate, respectively, of 1 W and 0.1 sccm (1 sccm = 1 mL/min), and also 2 W and 0.3 sccm, the thruster can operate coordinately to generate an ion beam of 5.3 mA, a discharge loss of 337.5 W/A, propellant utilization efficiency of 24.7%, thrust force of 368.6 μN, thrust specific impulse of 1277.6 s, and neutralizer coupling voltage of 17.4 V. The results can conduce to understanding the mechanism of the thruster and thus providing a reference for its design and performance optimization.
[1] Pencil E J, Kamhawi H, Arrington L A 2004 Proceedings of 40 th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Fort Lauderdale, U.S.A., July 11−14, 2004 p3455
[2] [3] Wirz R, Katz I 2005 Proceedings of 41st AIAA/ASME/ SAE/ASEE Joint Propulsion Conference and Exhibit Tucson, U.S.A., July 10−13, 2005 p3690
[4] Patterson M, Haag T, Rawlin V, Kussmaul M 1994 Proceedings of 30 th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Indianapolis, U.S.A., June 27−29, 1994 p2849
[5] Beattie J R, Matossian J N, Robson R 1990 J. Propulsion 6 145
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[6] Loeb H W, Feili D, Popov G A, Obukhov V A, Balashov V V, Mogulkin A I, Murashko V M, Nesterenko A N, Khartov S 2011 Proceedings of 32 nd International Electric Propulsion Conference Wiesbaden, Germany, September 11−15, 2011 p290
[7] Bassner H, Killinger R, Leiter H, Müller J 2001 Proceedings of 27 th International Electric Propulsion Conference Pasadena, U.S.A., October 15−19, 2001 p105
[8] Takao Y, Masui H, Miyamoto T, Kataharada H, Ijiri H, Nakashima H 2004 Vacuum 73 449
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[9] 金逸舟, 杨涓, 冯冰冰, 罗立涛, 汤明杰 2016 物理学报 65 045201
Google Scholar
Jin Y Z, Yang J, Feng B B, Luo L T, Tang M J 2016 Acta Phys. Sin. 65 045201
Google Scholar
[10] Satori S, Kuninaka H, Ohtaki M, Ishikawa Y 1997 Proceedings of 25 th International Electric Propulsion Conference Cleveland, Ohio, August 24–28, 1997 p31
[11] Wen J M, Peng S X, Ren H T, Zhang T, Zhang J F, Wu W B, Sun J, Guo Z Y, Chen J E 2018 Chin. Phys. B 27 055204
Google Scholar
[12] Peng S X, Zhang A L, Ren H T, Zhang T, Xu Y, Zhang J F, Gong J H, Guo Z Y, Chen J E 2015 Chin. Phys. B 24 075203
Google Scholar
[13] Koizumi H, Inagaki T, Kasagi Y, Naoi T, Hayashi T, Funase R, Komurasaki K 2014 Proceedings of 28 th Annual AIAA/USU Conference on Small Satellites Utah, U.S.A., August 4−7, 2014 p6
[14] Koizumi H, Kawahara H, Yaginuma K, Asakawa J, Nakagawa Y, Nakamura Y, Kojima S, Matsuguma T, Funase R, Nakatsuka J, Komurasaki K 2016 Trans. JSASS Aerospace Tech. Japan 14 13
[15] Koizumi H, Komurasaki K, Aoyama J, Yamaguchi K 2017 J. Propuls. Power 34 960
[16] Nishiyama K, Hosoda S, Kuninaka H, Toyoda Y 2009 Proceedings of 31st International Electric Propulsion Conference Ann Arbor, U.S.A., September 20−24, 2009 p21
[17] Koizumi H, Kuninaka H 2008 Proceedings of 44th AIAA/ ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Hartford, U.S.A., July 21−23, 2008 p4531
[18] Koizumi H, Kuninaka H 2010 J. Propuls. Power 26 601
[19] Koizumi H, Kuninaka H 2010 Proceedings of 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Nashville, U.S.A., July 25−28, 2010 p6617
[20] Sugita Y, Koizumi H, Tsukizaki R, Kuninaka H, Takao Y, Yamagiwa Y, Matsui M 2013 Proceedings of 33rd International Electric Propulsion Conference Washington, U.S.A., October 6−10, 2013 p245
[21] Takao Y, Koizumi H, Komurasaki K, Eriguchi K, Ono K 2014 Plasma Sources Sci. Technol. 23 064004
Google Scholar
[22] Hiramoto K, Nakagawa Y, Koizumi H, Takao Y 2017 Phys. Plasmas 24 064504
Google Scholar
[23] Hiramoto K, Nakagawa Y, Koizumi H, Komurasaki K, Takao Y 2016 Proceedings of 52nd AIAA/SAE/ASEE Joint Propulsion Conference & Exhibit Salt Lake City, U.S.A., July 25−27, 2016 p4946
[24] Koizumi H, Kuninaka H 2009 Trans. JSASS Space Tech. Japan 7 89
[25] Koizumi H, Kuninaka H 2009 Proceedings of 31st International Electric Propulsion Conference Ann Arbor, U.S.A., September 20−24, 2009 p178
[26] 汤明杰, 杨涓, 金逸舟, 冯冰冰, 罗立涛 2015 物理学报 64 215202
Google Scholar
Tang M J, Yang J, Jin Y Z, Feng B B, Luo L T 2015 Acta Phys. Sin. 64 215202
Google Scholar
[27] 孟海波, 杨涓, 朱康武, 孙俊, 黄益智, 金逸舟, 刘宪闯 2018 西北工业大学学报 36 42
Google Scholar
Meng H B, Yang J, Zhu K W, Sun J, Huang Y Z, Jin Y Z, Liu X C 2018 J. NorthWest. Polytech. Univ. 36 42
Google Scholar
[28] 黄益智 2018 硕士学位论文 (西安: 西北工业大学)
Huang Y Z 2018 M. S. Thesis (Xi'an: Northwestern Polytechnical University) (in Chinese)
[29] 迈克尔 A. 力伯曼, 阿伦 J. 里登伯格 著 (蒲以康 译) 2007 等离子体放电原理与材料处理 (北京: 科学出版社) 第379−383页
Lieberman M A, Lichtenberg A J (translated by Pu Y K) 2007 Principles of Plasma Discharges and Materials Processing (Beijing: Science Press) pp379−383 (in Chinese)
[30] Yamamoto N, Chikaoka T, Shinya K, Masui H, Nakashima H, Yoshiyuki T 2006 Proceedings of 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Sacramento, U.S.A., July 9−12, 2006 p5177
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图 1 2 cm ECRIT离子源放电室示意图
Figure 1. Schematic diagram of configuration for discharge chamber of 2 cm ECRIT ion source.
图 2 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
Figure 2. Distribution of magnetic flux density inside of the discharge chambers: (a) Chamber 1; (b) chamber 2; (c) chamber 3; (d) chamber 4.
图 3 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
Figure 3. 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.
图 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
Figure 4. Distribution of electron heating index in ECR layer of different discharge chambers: (a) Chamber 1; (b) chamber 2; (c) chamber 3; (d) chamber 4.
图 5 实验系统图
Figure 5. Schematic of the experimental system.
图 6 固定天线位置下四种离子源引出的离子束流
Figure 6. Ion beam current of four ion sources at fixed antenna position.
图 7 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
Figure 7. 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.
图 8 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
Figure 8. Voltage for electron extraction vs. electron beam current from different neutralizers: (a) No.1; (b) No.2; (c) No.3; (d) No.4.
图 9 不同L1尺寸下2号中和器在Pi = 1 W时的电子引出结果
Figure 9. Electron extraction results of neutralizer 2 with different L1 at Pi = 1 W.
图 10 中和时引出离子束流变化规律
Figure 10. Ion beam current at the neutralization state.
图 11 中和时中和器耦合电压变化规律
Figure 11. The coupling voltage of neutralizer at the neutraliza-tion state.
表 1 栅极结构
Table 1. Grid geometry.
厚度/
mm孔径/
mm孔数 栅极间距/
mm电压/V 材料 屏栅 0.25 0.36 211 0.3 1500 不锈钢 加速栅 0.25 0.2 211 0.3 –350 
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表 2 四种放电室的磁路结构参数
Table 2. The magnetic circuit structure parameters of four discharge chambers.
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 5.4 2.0 5.4 1.65 2号 5.6 2.7 5.8 1.8 3号 5.7 2.9 5.7 1.8 4号 5.8 3.0 5.6 1.8
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[1] Pencil E J, Kamhawi H, Arrington L A 2004 Proceedings of 40 th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Fort Lauderdale, U.S.A., July 11−14, 2004 p3455
[2] [3] Wirz R, Katz I 2005 Proceedings of 41st AIAA/ASME/ SAE/ASEE Joint Propulsion Conference and Exhibit Tucson, U.S.A., July 10−13, 2005 p3690
[4] Patterson M, Haag T, Rawlin V, Kussmaul M 1994 Proceedings of 30 th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit Indianapolis, U.S.A., June 27−29, 1994 p2849
[5] Beattie J R, Matossian J N, Robson R 1990 J. Propulsion 6 145
Google Scholar
[6] Loeb H W, Feili D, Popov G A, Obukhov V A, Balashov V V, Mogulkin A I, Murashko V M, Nesterenko A N, Khartov S 2011 Proceedings of 32 nd International Electric Propulsion Conference Wiesbaden, Germany, September 11−15, 2011 p290
[7] Bassner H, Killinger R, Leiter H, Müller J 2001 Proceedings of 27 th International Electric Propulsion Conference Pasadena, U.S.A., October 15−19, 2001 p105
[8] Takao Y, Masui H, Miyamoto T, Kataharada H, Ijiri H, Nakashima H 2004 Vacuum 73 449
Google Scholar
[9] 金逸舟, 杨涓, 冯冰冰, 罗立涛, 汤明杰 2016 物理学报 65 045201
Google Scholar
Jin Y Z, Yang J, Feng B B, Luo L T, Tang M J 2016 Acta Phys. Sin. 65 045201
Google Scholar
[10] Satori S, Kuninaka H, Ohtaki M, Ishikawa Y 1997 Proceedings of 25 th International Electric Propulsion Conference Cleveland, Ohio, August 24–28, 1997 p31
[11] Wen J M, Peng S X, Ren H T, Zhang T, Zhang J F, Wu W B, Sun J, Guo Z Y, Chen J E 2018 Chin. Phys. B 27 055204
Google Scholar
[12] Peng S X, Zhang A L, Ren H T, Zhang T, Xu Y, Zhang J F, Gong J H, Guo Z Y, Chen J E 2015 Chin. Phys. B 24 075203
Google Scholar
[13] Koizumi H, Inagaki T, Kasagi Y, Naoi T, Hayashi T, Funase R, Komurasaki K 2014 Proceedings of 28 th Annual AIAA/USU Conference on Small Satellites Utah, U.S.A., August 4−7, 2014 p6
[14] Koizumi H, Kawahara H, Yaginuma K, Asakawa J, Nakagawa Y, Nakamura Y, Kojima S, Matsuguma T, Funase R, Nakatsuka J, Komurasaki K 2016 Trans. JSASS Aerospace Tech. Japan 14 13
[15] Koizumi H, Komurasaki K, Aoyama J, Yamaguchi K 2017 J. Propuls. Power 34 960
[16] Nishiyama K, Hosoda S, Kuninaka H, Toyoda Y 2009 Proceedings of 31st International Electric Propulsion Conference Ann Arbor, U.S.A., September 20−24, 2009 p21
[17] Koizumi H, Kuninaka H 2008 Proceedings of 44th AIAA/ ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Hartford, U.S.A., July 21−23, 2008 p4531
[18] Koizumi H, Kuninaka H 2010 J. Propuls. Power 26 601
[19] Koizumi H, Kuninaka H 2010 Proceedings of 46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Nashville, U.S.A., July 25−28, 2010 p6617
[20] Sugita Y, Koizumi H, Tsukizaki R, Kuninaka H, Takao Y, Yamagiwa Y, Matsui M 2013 Proceedings of 33rd International Electric Propulsion Conference Washington, U.S.A., October 6−10, 2013 p245
[21] Takao Y, Koizumi H, Komurasaki K, Eriguchi K, Ono K 2014 Plasma Sources Sci. Technol. 23 064004
Google Scholar
[22] Hiramoto K, Nakagawa Y, Koizumi H, Takao Y 2017 Phys. Plasmas 24 064504
Google Scholar
[23] Hiramoto K, Nakagawa Y, Koizumi H, Komurasaki K, Takao Y 2016 Proceedings of 52nd AIAA/SAE/ASEE Joint Propulsion Conference & Exhibit Salt Lake City, U.S.A., July 25−27, 2016 p4946
[24] Koizumi H, Kuninaka H 2009 Trans. JSASS Space Tech. Japan 7 89
[25] Koizumi H, Kuninaka H 2009 Proceedings of 31st International Electric Propulsion Conference Ann Arbor, U.S.A., September 20−24, 2009 p178
[26] 汤明杰, 杨涓, 金逸舟, 冯冰冰, 罗立涛 2015 物理学报 64 215202
Google Scholar
Tang M J, Yang J, Jin Y Z, Feng B B, Luo L T 2015 Acta Phys. Sin. 64 215202
Google Scholar
[27] 孟海波, 杨涓, 朱康武, 孙俊, 黄益智, 金逸舟, 刘宪闯 2018 西北工业大学学报 36 42
Google Scholar
Meng H B, Yang J, Zhu K W, Sun J, Huang Y Z, Jin Y Z, Liu X C 2018 J. NorthWest. Polytech. Univ. 36 42
Google Scholar
[28] 黄益智 2018 硕士学位论文 (西安: 西北工业大学)
Huang Y Z 2018 M. S. Thesis (Xi'an: Northwestern Polytechnical University) (in Chinese)
[29] 迈克尔 A. 力伯曼, 阿伦 J. 里登伯格 著 (蒲以康 译) 2007 等离子体放电原理与材料处理 (北京: 科学出版社) 第379−383页
Lieberman M A, Lichtenberg A J (translated by Pu Y K) 2007 Principles of Plasma Discharges and Materials Processing (Beijing: Science Press) pp379−383 (in Chinese)
[30] Yamamoto N, Chikaoka T, Shinya K, Masui H, Nakashima H, Yoshiyuki T 2006 Proceedings of 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit Sacramento, U.S.A., July 9−12, 2006 p5177
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