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For a novel propulsion system

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PRINCIPLE

The right figure shows the schematic of ion acceleration mechanism of this thruster. The plasma is generated by microwave discharge. Electrons is trapped in a magnetic tube, where is the area between magnetic mirrors. Electrons gain energy from the microwaves and they collide propellant particles and the propellant atoms are ionized. The ions are accelerated by the potential difference between the plasma inside the thruster and the space, if the discharge chamber is kept the potential same as the space potential. High energetic electrons can also go out to downstream with ions against the potential difference. These electrons and ions outside the thruster are neutralized; it does not need a neutralizer. Therefore, this thruster is very simple and small, and it can operate in low power consumption.
We are expecting the generation of the Double Layer. If double layer is generated, ions are accelerated by more high potential difference. Therefore, we call this thruster TDL(Thruster with Double Layer).



ナビゲーション

ADDRESS

Depatment of Advanced Energy Engineering Science,
Kyushu University
6-1, 816-8580, Japan, Kasuga