地球周回軌道でのイオンスラスタ排出プラズマの挙動及びその周辺環境に及ぼす影響

概要

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The behavior of exhausted plasma from ion thruster in the near earth orbit was analyzed to find its influence on the earths environment. It was found by the analysis of the motion of beam plasma using PIC method that the quasineutral state of the exhausted plasma was broken and the charge separation occurred soon after their exhaust because their density much decreases by the beam divergence and the electric field in the plasma can not keep the electrons to stay in the plasma. So, the ions will be trapped by the geomagnetic field for a long period. It was also found by the analysis using the plasma density distribution model and the ion thruster mission analysis model that the plasma components density distribution near the earth will change by the energy input of these trapped ions if the large scale operation of ion thruster is performed.
社団法人日本航空宇宙学会の論文
2001-04-05