2D hybrid-PIC simulation of the two and three-grid system of ion thruster

Yanhui JIA (贾艳辉); Juanjuan CHEN (陈娟娟); Ning GUO (郭宁); Xinfeng SUN (孙新锋); Chenchen WU (吴辰宸); Tianping ZHANG (张天平)

doi:10.1088/2058-6272/aace52

Plasma Science and Technology > 2018 > 20(10): 105502. > DOI: 10.1088/2058-6272/aace52

Yanhui JIA (贾艳辉), Juanjuan CHEN (陈娟娟), Ning GUO (郭宁), Xinfeng SUN (孙新锋), Chenchen WU (吴辰宸), Tianping ZHANG (张天平). 2D hybrid-PIC simulation of the two and three-grid system of ion thruster[J]. Plasma Science and Technology, 2018, 20(10): 105502. DOI: 10.1088/2058-6272/aace52

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2D hybrid-PIC simulation of the two and three-grid system of ion thruster

National Key Laboratory of Science and Technology on Vacuum Technology and Physics, Lanzhou Institute of Physics, Lanzhou 730000, People’s Republic of China

Funds: This work was supported by National Natural Science Foundation of China (No. 11702123), Technology Based Research Projects of SASTIND (No. JSZL2017203B008), Fund for Distinguished Young Talents of CAST (No. 9140C550206130C55003).

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Received Date: March 12, 2018

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Abstract

Abstract

A 2D hybrid-PIC simulation model is proposed to investigate the beam extraction phenomena of the ion thruster. In which the electrons of the plasma sheath upstream the accelerator grid are assumed as particles while the downstream are fluid for improving the calculation efficiency. The ion transparency, plasma sheath formation, ion beam extraction characteristic of a two- and three-grid system have been compared in detail in this paper. From the comparison of the appearing time of the under-perveance phenomena in the two- and three-grid system, it illustrated that the two grid system has the wider operation range of the plasma densities than the three-grid one.
- ion thruster,
- grid system,
- plasma sheath,
- ion beam

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References (27)

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