Influence of the Decelerator Grid on the Optical Performance of the Ion Thruster

Table 10

The downstream reflux CEX ion impingement current of the accelerator grid and the reduction ratio.

Density	Total (A)			Aperture barrel (A)			Downstream surface (A)
	2-grid	3-grid	Reduction (%)	2-grid	3-grid	Reduction (%)	2-grid	3-grid	Reduction (%)
0.075			43.4			-802.4			91.4
0.2			52.8			-1100.0			84.6
0.75			60.7			-138.5			70.0
2.0			52.0			8.0			54.3