A field effect spacecraft neutralizer for the LISA Pathfinder mission

被引:10
|
作者
Kent, BJ [1 ]
Aplin, KL
Wang, L
Huq, SE
Stevens, R
Malik, A
Nicolini, D
机构
[1] Rutherford Appleton Lab, Space Sci & Technol Dept, Chilton, Oxon, England
[2] Rutherford Appleton Lab, Cent Microstruct Facil, Chilton, Oxon, England
[3] European Space Technol Ctr, NL-2200 AG Noordwijk, Netherlands
关键词
D O I
10.1088/0264-9381/22/10/047
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We outline the design, construction and testing of a field effect neutralizer, which provides a source of up to 6 mA of electron emission to maintain charge neutrality for the LISA Pathfinder mission spacecraft. The low mass, low power neutralizer uses silicon field emitter arrays and has been engineered for integration into the LISA Pathfinder micro-propulsion system. The silicon emitters are constructed using micro-fabrication techniques and electron beam lithography to ensure uniformity and precise control of emitter location. Control of the manufacture processes, plasma-enhanced vapour deposition, wet and dry plasma etch and various coatings, has been optimized to achieve robust reproducible devices suitable for space use.
引用
收藏
页码:S483 / S486
页数:4
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