摘要
安装在卫星上的霍尔推力器工作时喷出的高速束流会对卫星太阳电池阵列产生溅射,卫星太阳电池阵列溅射产物返回至卫星敏感区对敏感设备产生沉积污染。本文建立了兰州空间技术物理研究所LHT-100霍尔推力器的束流模型,应用LHT-100霍尔推力器束流模型计算了霍尔推力器的束流分布和束流发散半角。并结合该束流模型建立了卫星敏感区沉积模型,计算了安装在卫星上的LHT-100霍尔推力器束流在卫星敏感区域的沉积率,对敏感器在卫星上的安装布局提供重要的理论指导,同时也为LHT-100霍尔推力器在卫星上的安装倾角提供理论依据。
The pollution on the surfaces of the sensitive components of a satellite, deposited through sputtering of the solar an-ays by the high-speed, ion beam from the Hall thruster （LHT-100, lab-built in Lanzhou Institute of Physics）, was modeled, approximated, and simulated. In the simulation, the ion beam distribution and beam divergence angle were calcu- lated. The possible deposition rate on the sensitive components of the satellite was estimated on the basis of the simulated data. When it comes to the installation of the sensitive components in the satellite, the simulated results is of much techno- logical interest. In addition, the simulation provides a theoretical guidance for optimization of the cant angle of IAtT-100 Hall electric thruster on satellite.
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2013年第9期883-887,共5页
Chinese Journal of Vacuum Science and Technology
基金
重点实验室基金项目(No.9140C5504041001)
关键词
LHT-100霍尔推力器
束流模型
沉积污染模型
LHT-100 Hall thruster, Ion beam mathematical model, Deposition pollution mathematical model
