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The Concept of a Hybrid Pulsed Plasma Thruster for Small-Size Space Satellites

  • S. A. PopovEmail author
  • E. L. Dubrovskaya
  • A. V. Batrakov
Article
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A concept of a hybrid plasma source to be used as a micro satellite thruster is proposed, where the propellant is a liquid gallium–indium alloy. The plasma source operates in two modes: 1) generation of laser ablation plasma and 2) generation of plasma in a laser-triggered, low-voltage vacuum-arc discharge. The cathode in the discharge cell of the source represents a stainless-steel capillary filled with the working liquid. The laser beam target is the working liquid meniscus. Without any voltage in the discharge gap, only laser-ablated plasma is generated. Upon application of even a relatively low voltage (<1 kV), the ablation initiates a high-current vacuum-arc discharge. In the experiments, the discharge current and voltage waveforms were recorded and so were the images of plasma glow obtained with a HSFC-Pro 4-channel high-speed camera. Regularities of current flow in the high-current vacuum-arc discharge, initiated by the cathode laser ablation, are investigated.

Keywords

laser ablation high-current vacuum-arc discharge hybrid plasma source plasma thruster of a micro satellite 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • S. A. Popov
    • 1
    Email author
  • E. L. Dubrovskaya
    • 1
  • A. V. Batrakov
    • 1
  1. 1.Institute of High-Current Electronics of the Siberian Branch of the Russian Academy of SciencesTomskRussia

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