The multiple applications of electron emitters in space

Details The multiple applications of electron emitters in space The multiple applications of electron emitters in space

Oct 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976stin...7723369g&link_type=abstract

Presented at the USAF/NASA Spacecraft Charging Technol. Conf., U.S. Air Force Acad., Colo., 27-29 Oct. 1976

Physics

Electric Potential, Electron Emission, Electron Sources, Spacecraft Environments, Cathodes, Earth Magnetosphere, Jupiter (Planet), Spacecraft Design

Scientific paper

The principles which govern the interaction of a spacecraft with its environment are recapitulated, and the various techniques available for controlling the electrostatic potential of a spacecraft are reviewed. It is demonstrated that electron emitters are requisite to any scientific mission in a magnetospheric environment, in the vicinity of Jupiter in particular. It is also emphasized that electron sources can be used simultaneously for a number of additional tasks such as monitoring the degradation of spacecraft material surfaces, converting the thermal motion of plasmas into electrical energy, measuring the density and temperature of the ambient electrons, and receiving waves without antennas.

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