Yi-De Zhao, Juan Li, Zong-Hai Wu, Yong-Jie Huang, Jian-Peng Li, Tian-Ping Zhang. Influence of screen gird aperture diameter in outer region on performance of dual-mode ion thruster [J]. Acta Physica Sinica, 2020, 69(11): 115203-1
- Acta Physica Sinica
- Vol. 69, Issue 11, 115203-1 (2020)
Fig. 1. Radial beam current density profiles of 30 cm dual-mode ion thruster.
Fig. 2. The power and discharge loss of 30 cm dual-mode ion thruster with same aperture diameter grid optical system during 300 h operation: (a) Low thrust-high specific impulse mode; (b) large thrust-high power mode.
Fig. 3. The power and discharge loss of 30 cm dual-mode ion thruster with small aperture diameter grid optical system during 300 h operation: (a) Low thrust-high specific impulse mode; (b) large thrust-high power mode.
Fig. 4. Photography of decelerate grid: (a) and (b) are the same aperture diameter grid optical system after 300 h and 600 h operation respectively; (c) and (d) are the small aperture diameter grid optical system after 300 h and 600 h opera-tion respectively.
Fig. 5. Relative variation of decelerate grid apertures diameter at the different radial position after 300 h and 600 h operation: (a) The same aperture diameter grid optical system; (b) the small aperture diameter grid optical system.
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Table 1. Main parameters of 30 cm dual-mode ion thruster.
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Table 2.
Steady-state operating parameters of 30 cm dual-mode ion thruster at two kinds of grid optical system.
两种栅极下30 cm双模式离子推力器工作平衡时电参数
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