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4.1 Overview
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pht_hb
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3.10 ISOPHOT Modes of
4. Instrumental Characteristics
Subsections
4.1 Overview
4.2 Detector Properties
4.2.1 Detector responsivity
4.2.2 Signal non-linearities
4.2.3 Transient behaviour after flux change
4.2.4 Drift behaviour of responsivity
4.2.5 Curing procedures
4.2.6 Dark signal and noise
4.2.7 Detector flat-fields
4.2.8 Detector saturation
4.3 Features due to Electronics
4.3.1 Anomalous first readouts on a ramp
4.3.2 CRE (ramp) linearity
4.3.3 Signal dependence on reset interval
4.3.4 Detector bias: de-biasing effects
4.3.5 Readout saturation
4.3.6 Disturbances by chopper commanding
4.3.7 CRE latch-up
4.4 Effects of Ionising Radiation
4.5 Optical Performance
4.5.1 Instrumental footprint on the sky
4.5.2 Point source intensity fractions
4.5.3 Chopper vignetting/offset
4.5.4 Inhomogeneous FCS illumination
4.6 Spectral Performance
4.6.1 PHT-S instrumental line profile
4.6.2 PHT-S wavelength calibration
4.7 Straylight
4.7.1 Straylight during FCS calibrations
4.7.2 Instrumental straylight
4.7.3 Spectral straylight
4.8 Instrumental Polarisation
4.9 Backgrounds
4.9.1 Confusion due to diffuse galactic emission
4.9.2 Confusion by galaxies
4.9.3 Zodiacal light
4.10 Global Instrument Data
ISO Handbook Volume IV (PHT), Version 2.0.1, SAI/1999-069/Dc
