Research Article

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

Table 8

CEX impingement current of the accelerator grid and mean incident energy from different regions at .

Generation region (A) (eV)
2-grid3-grid2-grid3-grid

Upstream1944.11946.8
Extraction (center)344.44300.53
Extraction (edge)211.76222.22
Downstream128.46172.18
Total307.83257.38