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- W2732875590 abstract "The effects of a radio-frequency (RF) power on the ion generation and electrostatic acceleration in a helicon electrostatic thruster were investigated with a constant discharge voltage of 300 V using argon as the working gas at a flow rate either of 0.5 Aeq (Ampere equivalent) or 1.0 Aeq. A RF power that was even smaller than a direct-current (DC) discharge power enhanced the ionization of the working gas, thereby both the ion beam current and energy were increased. However, an excessively high RF power input resulted in their saturation, leading to an unfavorable increase in an ionization cost with doubly charged ion production being accompanied. From the tradeoff between the ion production by the RF power and the electrostatic acceleration made by the direct current discharge power, the thrust efficiency has a maximum value at an optimal RF to DC discharge power ratio of 0.6 – 1.0." @default.
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- W2732875590 date "2017-10-01" @default.
- W2732875590 modified "2023-09-26" @default.
- W2732875590 title "Power matching between plasma generation and electrostatic acceleration in helicon electrostatic thruster" @default.
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- W2732875590 doi "https://doi.org/10.1016/j.actaastro.2017.06.032" @default.
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