Accession Number : ADA133588

Title :   Proton Electrostatic Analyzer.

Descriptive Note : Final rept. 24 Nov 80-24 Sep 82,

Corporate Author : IRT CORP SAN DIEGO CA

Personal Author(s) : Judge,Roger

PDF Url : ADA133588

Report Date : Feb 1983

Pagination or Media Count : 113

Abstract : A multichannel proton electrostatic analyzer has been developed to monitor spacecraft charging by observing changes in the energy spectrum of the proton flux incident on the spacecraft. The analyzer uses electrostatic deflection plates to select incident ions within each energy band for detection by a channel electron multiplier. Command, control, input and output channel and mode selection, count accumulation, and processing are provided by a microprocessor under firmware control from replaceable programmable memories. (Author)

Descriptors :   *ELECTROSTATIC ANALYZERS, *SPACE CHARGE, *SPACECRAFT, *MONITORING, MULTICHANNEL, MICROPROCESSORS, SCHEMATIC DIAGRAMS, ANALOG SYSTEMS, CIRCUITS, DIGITAL SYSTEMS, COMPUTER PROGRAMS, SPECTROMETERS, ELECTRON MULTIPLIERS, ENERGY BANDS, PROTONS

Subject Categories : Test Facilities, Equipment and Methods
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE