Active spacecraft potential control system selection for the Jupiter orbiter with probe mission

Details Active spacecraft potential control system selection for the Jupiter orbiter with probe mission Active spacecraft potential control system selection for the Jupiter orbiter with probe mission

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977scct.conf..143b&link_type=abstract

In its Proc. of the Spacecraft Charging Technol. Conf. p 143-166 (SEE N78-10129 01-12)

Computer Science

Jupiter Probes, Potential, Charged Particles, Charging, Electric Fields, Flux (Rate), Spacecraft

Scientific paper

It is shown that the high flux of energetic plasma electrons and the reduced photoemission rate in the Jovian environment can result in the spacecraft developing a large negative potential. The effects of the electric fields produced by this charging phenomenon are discussed in terms of spacecraft integrity as well as charged particle and fields measurements. The primary area of concern is shown to be the interaction of the electric fields with the measuring devices on the spacecraft. The need for controlling the potential of the spacecraft is identified, and a system capable of active control of the spacecraft potential in the Jupiter environment is proposed. The desirability of using this system to vary the spacecraft potential relative to the ambient plasma potential is also discussed. Various charged particle release devices are identified as potential candidates for use with the spacecraft potential control system. These devices are evaluated and compared on the basis of system mass, power consumption, and system complexity and reliability.

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