Performance of a rf neutralizer operating with noble gases and iodine

IF 0.9 4区 物理与天体物理 Q4 PHYSICS, APPLIED
Patrick Dietz, F. Becker, K. Keil, K. Holste, P. Klar
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引用次数: 4

Abstract

Neutralization of the extracted ion beam is a mandatory task for any ion thruster based space mission. The required lifetimes are in the order of ten thousand hours. This requirement is fulfilled by hollow cathodes operating with xenon, but has not been demonstrated for operation with iodine yet. Furthermore, the power consumption as well as the demand on mass flow should be kept as low as possible. Since the halogen iodine seems to be a viable alternative to xenon for operating ion thrusters, a suitable neutralizer concept that can operate with the corrosive gas for the time periods stated above is required. We propose to use a neutralizer based on an inductively coupled rf discharge as alternative to hollow cathodes. We studied the performance of a prototypical neutralizer operating with iodine as well as the inert gases xenon and krypton and compared the experimental studies with the results of global modeling.
与惰性气体和碘一起工作的射频中和器的性能
对提取的离子束进行中和是任何基于离子推进器的太空任务的强制性任务。所需的寿命约为1万小时。与氙一起工作的空心阴极可以满足这一要求,但尚未证明与碘一起工作。此外,功耗和对质量流量的需求应尽可能低。由于卤素碘似乎是氙操作离子推进器的可行替代品,因此需要一种合适的中和剂概念,可以在上述时间段内与腐蚀性气体一起操作。我们建议使用基于电感耦合射频放电的中和器来替代空心阴极。我们研究了与碘以及惰性气体氙和氪一起工作的原型中和剂的性能,并将实验研究结果与全局模拟结果进行了比较。
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来源期刊
CiteScore
1.90
自引率
10.00%
发文量
84
审稿时长
1.9 months
期刊介绍: EPJ AP an international journal devoted to the promotion of the recent progresses in all fields of applied physics. The articles published in EPJ AP span the whole spectrum of applied physics research.
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