Neutral gas is an important part of the Hall thruster discharge process,and the gas density distribution in the channel is an important optimization parameter for Hall thruster.In order to improve gas uniformity inside the Hall thruster channel,research progress at home...MORE Neutral gas is an important part of the Hall thruster discharge process,and the gas density distribution in the channel is an important optimization parameter for Hall thruster.In order to improve gas uniformity inside the Hall thruster channel,research progress at home and abroad was reviewed,and the effects of gas supp...