| definition |
- The Total Energy Detector (TED) uses eight programmed swept
electrostatic curved-plate analyzers with continuous dynode
electron multipliers (CDEM) to select the particles type and
energy.
The TED measures electron and proton fluxes in the 0.05 to 20
keV energy range. Measurements are related to j (E, alpha), the
differential directional energy flux, found in the number of
protons and electrons in units of number per (m?-s-Sr-keV).
Two independent measurements of the particle flux are made at 0
and 30? from the local vertical. The total energy is divided in
two ranges: 0.05 to 1 keV and 1 to 20 keV. The TED also measures
the maximum differential energy flux density and the energy at
which it occurs for each direction and type (electron and
proton).
The TED consists of eight Electro-Static Analyzers (ESA), Pulse
Height Discriminators (PHD), and In-Flight Calibrator (IFC), two
high voltage (HV) supplies, a sweep voltage supply and
housekeeping circuits. A particle (proton, ion or electron)
enters an entrance of an ESA. If the particle has the right
charge (+ or -) and energy, it passes through the ESA to the
Continuous Dynode Electron Multiplier (CDEM). The CDEM makes a
pulse that is processed by the PHD that sends a logic pulse to
the DPU.
Additional information available at
"http://www.esa.int/export/esaME/ESA8I1V9EYC_sem_0.html"
[Summary provided by ESA]
Group: Instrument_Details
Entry_ID: TED
Group: Instrument_Identification
Instrument_Category: Solar/Space Observing Instruments
Instrument_Class: Particle Detectors
Short_Name: TED
Long_Name: Total Energy Detector
End_Group
Group: Associated_Platforms
Short_Name: NOAA-N PRIME
End_Group
End_Group
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