Radio‐frequency ion sources for space propulsion (invited)
Radio‐frequency ion sources for space propulsion (invited)
复制标题
用于空间推进的射频离子源（特邀）
DOI：
10.1063/1.1142875
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发表时间：
1992
影响因子：
1.6
通讯作者：
H. Loeb
中科院分区：
文献类型：
--
作者：
K. Groh;H. Loeb
经过25年多的射频离子推进器（RIT）的研究、开发和鉴定工作，RIT 10发动机，专为地球同步卫星的南北站保持设计，现在准备在欧洲可回收载体EURECA上进行空间测试。两年来，欧洲空间局ESA/ESTEC一直致力于一颗名为ARTEMIS的新技术卫星，该卫星上的离子推进装置将用于南北空间站的维护。在RIT 10地面鉴定工作的范围内，设计并建造了一个离子束诊断装置来确定机械束参数。此外，还设计了一个小型测试台，允许全推力器工作，以便在消声测试室中测量辐射电磁频谱。此外，以氙、氪和氩为推进剂的50mn发动机RIT 15的研制和试验也取得了成功。测量了离子束的分布，研究了加速衰减比对离子束发散的影响。一种大型离子发动机，离子发生器直径35厘米，RIT 35，已经开发用于主推进，目标推力水平在250 mN范围内。一个实验室原型已经经受了广泛的测试和性能映射。这项初步工作已经完成，等待进一步的方案决定。
After more than 25 years of research, development, and qualification work at Radiofrequency Ion Thrusters, so‐called RIT, the RIT 10 engine, designed for north–south stationkeeping of geosynchronous satellites, is now ready for a space test onboard the European Retrievable Carrier EURECA. Since two years, the European Space Agency ESA/ESTEC is working at a new technological satellite, called ARTEMIS, at which ion propulsion shall be used operationally for north–south stationkeeping. In the scope of the RIT 10 ground qualification work, an ion beam diagnostic device has been designed and built up to determine the mechanical beam parameters. Moreover, a small test stand has been designed that allows full thruster operation in order to measure the radiated electromagnetic spectrum in an anechoic test chamber. Besides, the development and tests of a scaled‐up 50 mN engine RIT 15 have been continued successfully with xenon, krypton, and also argon as propellants. The ion beam profiles have been measured and the influence of the accel‐decel ratio on the beam divergence has been studied. A large ion engine with 35 cm ionizer diameter, the RIT 35, has been developed for primary propulsion aiming at a thrust level in the 250 mN range. A laboratory prototype has been subjected to extensive testing and performance mapping. This preliminary work has been finished waiting for further programmatic decisions.