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Suprathermal Electron Telescope (STE)
UC Berkeley
| STE is a new instrument that covers electrons in the energy range ~2-20 keV which are present as a superhalo on the solar wind electrons, and as CME shock-accelerated, or flare-accelerated populations extending beyond the SWEA range. STE utilizes passively cooled silicon semiconductor devices (SSDs) which measure all energies simultaneously. The STE consists of two arrays of four SSDs in a row, each ~0.1 cm2 area and ~500 microns thick. Each array looks through a rectangular opening that provides a ~20X80 degree field of view for each SSD with the 80 degree direction perpendicular to the ecliptic. Adjacent FOVs are offset for a total FOV of ~80X80 degrees. The two arrays are mounted back-to-back, looking in opposite directions, centered about 25 deg. from the average Parker Spiral field direction. STE is located just inboard of SWEA on the STEREO boom to clear its field of view and remain in shadow. |  |
SWEA | STE | MAG | SEPT | SIT | LET | HET
Boom Suite | SEP Package
