A Space-Borne Plasma Analyser for Three-Dimensional Measurements of the Velocity Distribution

1 January 1985

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science

Vol. 32 (1) , 139-144
https://doi.org/10.1109/tns.1985.4336809

Abstract

A new type of plasma analyser, capable of covering the three-dimensional energy distribution of charged particles from a spinning spacecraft, has been built for the AMPTE and GIOTTO spacecraft. The novel features are the use of 260° of deflection in a spherical plate electrostatic analyser to obtain energy discrimination simultaneously with dispersion in angle and the use of a microchannel plate with position-sensitive readout to obtain the angular distribution. The sensor achieves a field of view greater than 140°; a well-defined and nearly-ideal shape for the acceptance volume in velocity space and a relatively large geometric factor.

Keywords

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