Detectors And Arrays Of ISO's Photopolarimeter

The Infrared Space Observatory's (ISO) photometer experiment ISOPHOT provides 4 sub-systems, as described in LEMKE 1985, which optimizes the different ways of photometric measurements. They allow multiband - multiaperture photopolarimetry, multicolor - polarimetric imaging and spectrophotometry. In order to cover the wide wavelength range 2.5...240μm five different detector materials have to be used. They are arranged according to their application as 2D-arrays, linear arrays and single detectors, a total of 223 detectors are present, see tab. 1.