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It is found that the vacuum backpressure affects the flow of background gas into a Hall thruster channel. The flow of background gas can affect the ionization of propellants and the conductivity of electrons, and thereby affect the physical process and discharge characteristic of Hall thrusters. In order to investigate these effects, the atomic and the ionic emission spectra in the discharge channel and the ions energy distribution are measured under different vacuum backpressures. The experimental results indicate that the increase of vacuum backpressure can reduce the electron temperature and ionization efficiency of propellants and a new ionization region appears near exit plane in the channel; and moreover, it is found that the new ionization region penetrates into the channel more deeply under the higher vacuum backpressure case.
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Keywords:
- Hall thruster /
- vacuum backpressure /
- discharge characteristics
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[15] E P, Yu D R, Wu Z W, Han K 2009 Acta Phys. Sin. 58 2535(in Chinese)[鄂 鹏、于达仁、武志文、韩 轲 2009 物理学报 58 2535]
[16] E P 2009 Ph. D. Dissertation (Harbin: Harbin Institute of Technology) (in Chinese) [鄂 鹏 2009 博士学位论文(哈尔滨: 哈尔滨工业大学)]
[17] E P, Duan P, Jiang B H, Liu H, Wei L Q, Xu D G 2010 Acta Phys. Sin. 59 7181 (in Chinese)[鄂 鹏、段 萍、江滨浩、刘辉、魏立秋、徐殿国 2010 物理学报 59 7181]
[18] Dzierzega K, Griesmann U, Nave G 2001 Phys. Scr. 63 209
[19] Thorne A P 1974 Spectrophysics (London: Chapman and Hall) p162
[20] Mills R L, Ray P C, Nansteel M, Xuemin C, Mayo R M, Hu J L, Dhandapani B 2003 IEEE Trans. Plasma Sci. 31 338
[21] Tsurubuchi S, Kobayashi H, Hyodo M 2003 J. Phys. B 36 2629
[22] Garrigues L, Boyd I D, Boeuf J P 2001 J. Propul. Power 17 772
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[1] Hegeler F, Masten G, Leiker G, Krompholz H, Kristiansen M 1993 Proceedings of the 9th IEEE Pulsed Power Conference (New Mexico:Institute of Electrical and Electronics Engineers) p237
[2] Randolph T, Kim V, Kaufman H, Kozubsky K, Zhurin V V, Day M 1993 Proceedings of the 23rd International Electric Propulsion Conference (Worthingto: The Electric Rocket Propulsion Society) p95
[3] Hofer R R, Peterson P Y, Gallimore A D 2001 Proceedings of the 27th International Electric Propulsion Conference (Worthingto: The Electric Rocket Propulsion Society) p45
[4] Walker M L R 2005 Ph. D. Dissertation (Michigan: University of Michigan)
[5] Walker M L R, Victor A L, Hofer R R, Gallimore A D 2005 J. Propul. Power 21 408
[6] Geng S F, Tang D L, Zhao J, Qiu X M 2009 Acta Phys. Sin. 58 5520 (in Chinese)[耿少飞、唐德礼、赵 杰、邱孝明 2009 物理学报 58 5520]
[7] Hofer R R, Peterson P Y, Gallimore A D 1990 Proceedings of the 21st International Electric Propulsion Conference (Worthingto: The Electric Rocket Propulsion Society) p41
[8] Yang J, Liu W Y, Zhu G Q, Mao G W 2007 Acta Phys. Sin. 56 366 (in Chinese)[杨 涓、刘文一、朱国强、毛根旺 2007 物理学报 56 366]
[9] Byers D, Dankanich J W 2009 Proceedings of the 31st International Electric Propulsion Conference (Worthingto: The Electric Rocket Propulsion Society) p76
[10] Morozov A I, Savelyev V V 2001 Reviews of Plasma Physics (Vol.21) (New York: Consultants Bureau) p375
[11] Yang J, Mao G W, He H Q, Tang J L, Song J, Su W Y 2004 Acta Phys. Sin. 53 4282 (in Chinese)[杨 涓、毛根旺、何洪庆、唐金兰、宋 军、苏纬仪 2004 物理学报 53 4282]
[12] Bugrova A I, Desyatskov A V, Morozov A I, Kharchevnikov V K 2000 Plasma Phys. Rep. 26 715
[13] Yu D R, Zhang F K, Li H, Liu H 2009 Acta Phys. Sin. 58 1844 (in Chinese)[于达仁、张凤奎、李 鸿、刘 辉 2009 物理学报 58 1844]
[14] Li Y Q, Yu D R 2006 Plasma Sci. Technol. 8 666
[15] E P, Yu D R, Wu Z W, Han K 2009 Acta Phys. Sin. 58 2535(in Chinese)[鄂 鹏、于达仁、武志文、韩 轲 2009 物理学报 58 2535]
[16] E P 2009 Ph. D. Dissertation (Harbin: Harbin Institute of Technology) (in Chinese) [鄂 鹏 2009 博士学位论文(哈尔滨: 哈尔滨工业大学)]
[17] E P, Duan P, Jiang B H, Liu H, Wei L Q, Xu D G 2010 Acta Phys. Sin. 59 7181 (in Chinese)[鄂 鹏、段 萍、江滨浩、刘辉、魏立秋、徐殿国 2010 物理学报 59 7181]
[18] Dzierzega K, Griesmann U, Nave G 2001 Phys. Scr. 63 209
[19] Thorne A P 1974 Spectrophysics (London: Chapman and Hall) p162
[20] Mills R L, Ray P C, Nansteel M, Xuemin C, Mayo R M, Hu J L, Dhandapani B 2003 IEEE Trans. Plasma Sci. 31 338
[21] Tsurubuchi S, Kobayashi H, Hyodo M 2003 J. Phys. B 36 2629
[22] Garrigues L, Boyd I D, Boeuf J P 2001 J. Propul. Power 17 772
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