Satellite Instrumentation for Charged Particle Measurements I. Electrostatic Analyzer for 1 to 100 Kev Particles

A low energy proton and electron electrostatic analyzer has been built for use in trapped particle measurements aboard Air Force satellites. This paper describes the basic design features of the instrument as well as the calibration of the plate assembly for particle transmission, of the magnetic electron multiplier sensor for relative efficiency to electrons and protons of various energies and the final calibration of the assembled instrument utilizing electron and proton guns and distributed radioactive sources.