Title :
Low energy plasma analyzer
Author :
Hardy, David A. ; Walton, D.M. ; Johnstone, A.D. ; Smith, M.F. ; Gough, M.P. ; Huber, A. ; Pantazis, J. ; Burkhardt, R.
Author_Institution :
Air Force Phillips Lab., Hanscom AFB, MA, USA
fDate :
4/1/1993 12:00:00 AM
Abstract :
The low energy plasma analyzer (LEPA) that operates in a direct wave-particle mode in which waves (below 30 kHz), measured by separate onboard electric field and wave experiments, and LEPA signals that are directly cross-correlated, is described. LEPA was developed for the Combined Release and Radiation Effects Satellite (CRRES). LEPA is capable of determining the three-dimensional distribution function of electrons and positive ions in this energy range while simultaneously determining the location in the distribution function and the frequency at which coherent wave-particle interactions may be occurring. The LEPA measurement system uses tri-quadrispherical electrostatic analyzers with microchannel plate detectors
Keywords :
artificial satellites; atmospheric measuring apparatus; calibration; image intensifiers; magnetosphere; plasma; plasma diagnostic techniques; 10 to 30 keV; 30 kHz; CRRES; Combined Release and Radiation Effects Satellite; LEPA; coherent wave-particle interactions; direct wave-particle mode; electrons; low energy plasma analyzer; magnetosphere; microchannel plate detectors; onboard electric field; positive ions; three-dimensional distribution function; tri-quadrispherical electrostatic analyzers; wave experiments; Distribution functions; Electric variables measurement; Electrons; Energy measurement; Frequency; Plasma measurements; Plasma waves; Radiation effects; Satellites; Signal analysis;
Journal_Title :
Nuclear Science, IEEE Transactions on
