Solar Electron Proton Telescope (SEPT)
ESTEC, University of Kiel
SEPT consists of two dual,
double-ended magnet/foil solid state detector particle telescopes that
cleanly separate and measure electrons in the energy range 20-400 keV
and protons from 20-7000 keV, while providing anisotropy information
through use of several fields of view. Each SSD detector in SEPT is 300
microns thick and 0.53 cm2 in area. A rare-earth permanent magnet is
used to sweep away electrons for ion detection, while a parylene foil
transmits electrons but stops protons. SEPT is divided into two pieces
for field-of-view reasons. The SEPT-E telescope is housed with the rest
of the SEP Package on the body of the spacecraft. It looks in the
ecliptic plane along the Parker Spiral magnetic field direction, both
forward and backward. SEPT-N/S is housed separately at a different
spacecraft location, and looks out of the ecliptic plane perpendicular
to the nominal magnetic field, both north and south. The viewing cones
for the SEPT telescopes are each ~60 degrees. |
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SWEA | STE | MAG | SEPT | SIT | LET | HET
Boom Suite | SEP Package
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