EPIC Instrument
The Energetic Particles and Ion Composition (EPIC) instrument
(block diagram)
is actually composed of two separate sensor and processing assemblies.
- The
STICS assembly
(Supra-Thermal Ion Composition Spectrometer) uses a
quadrispherical electrostatic analyzer followed by a foil/solid state
detector time-of-flight (TOF) telecope to measure charge state, mass and
energy of ions with energies of 30 - 230 keV/charge. It uses an
electrostatic analyzer with a geometry factor of 0.05 cm**2 sr, time of
flight and energy analysis.
- The
ICS assembly
(Ion Composition Subsystem) measures mass and energy
properties of energetic ions with energies of less than 50 keV to 3 MeV. It
uses a pair of collimators with sweeping magnets to reject electrons,
followed by TOF and energy analysis, with a geometry factor of 0.2 cm**2 sr.
A thin foil/solid state detector electron telescope measures electrons higher
than 30 keV.
Epic Channels listing
energy bands, head and sector configuration, and time resolution.
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EPIC Ground-based Data Conversions and Corrections
The ground-based data processing steps for data conversions and corrections for the EPIC instrument are
provided in a PDF document.
