Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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CIRCUIT MODEL SIMULATION FOR IONOSPHERIC PLASMA RESPONSE TO HIGH POTENTIAL SYSTEM

  • Rhee, Hwang-Jae (Radio Research Laboratory/Ministry of Information and Communication) ;
  • Raitt, W.-John (Center for Atmospheric and Space Sciences, Utah State University)
  • Published : 2000.06.01
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Abstract

When a deployed probe is biased by a high positive potential during a space experiment, the payload is induced to a negative voltage in order to balance the total current in the whole system. The return currents are due to the responding ions and secondary electrons on the payload surface. In order to understand the current collection mechanism, the process was simulated with a combination of resistor, inductor, and capacitor in SPICE program which was equivalent to the background plasma sheath. The simulation results were compared with experimental results from SPEAR-3 (Space Power Experiment Aboard Rocket-3). The return current curve in the simulation was compatible to the experimental result, and the simulation helped to predict the transient plasma response to a high voltage during the plasma sheath formation.

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References

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