电推力器羽流离子能谱测试仪设计及在轨数据分析  

INSTRUMENTS DESIGN AND ON-ORBIT TESTING DATA ANALYSIS FOR ION ENERGY DISTRIBUTION MEASUREMENT OF THE THRUSTER PLUME

作　　者：马亚莉[1] 薛玉雄[1] 陈益锋[1] 王鹢[1] 高欣[1] 苗育君 田恺[1] 

机构地区：[1]兰州空间技术物理研究所空间环境材料行为及评价技术重点实验室,甘肃兰州730000

出　　处：《真空与低温》2014年第2期90-93,108,共5页Vacuum and Cryogenics

摘　　要：阻滞势分析仪(RPA)可有效获得等离子体离子能量分布,针对空间电推力器产生的交换电荷等离子体羽流参数范围与特性,开展了专用RPA的设计,着重描述已用于航天器上搭载的RPA设计方法及影响因素分析。在轨测试表明,所设计RPA获得了理想的测试结果,通过对测试数据分析获得了羽流等离子体的离子能谱和束流密度。Plasma ion energy per unit charge distribution can be measured effectively by Retarding Potential Analyzer （ RPA ）. RPA should be designed specially according to plume plasma parameters range and feature of the Xe thruster. Major principles usable for good RPA design are discussed carefully. Design and the influence factors of RPA being used for on orbit spacecraft are described. On-orbit testing results show that desired data were achieved by the RPA. The data achieved by RPA are given and analyzed.

关 键 词：推力器羽流 离子能量分布 阻滞势分析仪 在轨测量 

分 类 号：TL65[核科学技术—核技术及应用]