Electrostatic ion thruster accelerator system, shape and position of plasma sheath prediction

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YADOLLAHI MILAD; SEYED SHAMSTALEGHANI SEYED ARASH; ESFAHANIAN VAHID

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Paper Information

Journal: AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL Year:2019 | Volume:8 | Issue:1 Page(s): 7-16

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Title

Electrostatic ion thruster accelerator system, shape and position of plasma sheath prediction

Author(s)

YADOLLAHI MILAD | SEYED SHAMSTALEGHANI SEYED ARASH | ESFAHANIAN VAHID | Issue Writer Certificate

Keywords

electrostatic ion thrusterQ1

accelerator systemQ1

numerical simulationQ2

particle-in-cell methodQ1

plasma sheathQ1

Abstract

plasma sheath, as ion injection boundary of accelerator system, has direct effect on ion beam characteristics and consequently on ion thruster performance and lifetime. In most of numerical simulations of accelerator system of electrostatic ion thrusters, the effects of electrons on upstream plasma and plasma sheath's shape are simulated by treating them as fluid (Poisson-Boltzmann method) or charged particles. But in this study, plasma sheath are predicted using particle-in-cell (PIC) method and without any calculation for electrons. Predicted plasma sheath shows good agreement with experimental result and is more accurate; in comparison with numerical models that simulates electrons. Calculation results shows that, for specific beam current, nonconformity between test results and plasma sheath that predicted by Poisson-Boltzmann method, leads to ion beam diverges 3. 2 degrees or 18. 28 %, in comparison with the method that directly applied electron effect.

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APA: Copy

YADOLLAHI, MILAD, SEYED SHAMSTALEGHANI, SEYED ARASH, & ESFAHANIAN, VAHID. (2019). Electrostatic ion thruster accelerator system, shape and position of plasma sheath prediction. AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL, 8(1 ), 7-16. SID. https://sid.ir/paper/264194/en

Vancouver: Copy

YADOLLAHI MILAD, SEYED SHAMSTALEGHANI SEYED ARASH, ESFAHANIAN VAHID. Electrostatic ion thruster accelerator system, shape and position of plasma sheath prediction. AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL[Internet]. 2019;8(1 ):7-16. Available from: https://sid.ir/paper/264194/en

IEEE: Copy

MILAD YADOLLAHI, SEYED ARASH SEYED SHAMSTALEGHANI, and VAHID ESFAHANIAN, “Electrostatic ion thruster accelerator system, shape and position of plasma sheath prediction,” AEROSPACE KNOWLEDGE AND TECHNOLOGY JOURNAL, vol. 8, no. 1 , pp. 7–16, 2019, [Online]. Available: https://sid.ir/paper/264194/en

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