The IMPACT Solar Wind Electron Analyzer (SWEA)

Details The IMPACT Solar Wind Electron Analyzer (SWEA) The IMPACT Solar Wind Electron Analyzer (SWEA)

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ssrv..136..227s&link_type=abstract

Space Science Reviews, Volume 136, Issue 1-4, pp. 227-239

Computer Science

Performance

32

Solar Wind, Cme, Electrons, Multipoints

Scientific paper

SWEA, the solar wind electron analyzers that are part of the IMPACT in situ investigation for the STEREO mission, are described. They are identical on each of the two spacecraft. Both are designed to provide detailed measurements of interplanetary electron distribution functions in the energy range 1˜3000 eV and in a 120°×360° solid angle sector. This energy range covers the core or thermal solar wind plasma electrons, and the suprathermal halo electrons including the field-aligned heat flux or strahl used to diagnose the interplanetary magnetic field topology. The potential of each analyzer will be varied in order to maintain their energy resolution for spacecraft potentials comparable to the solar wind thermal electron energies. Calibrations have been performed that show the performance of the devices are in good agreement with calculations and will allow precise diagnostics of all of the interplanetary electron populations at the two STEREO spacecraft locations.

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