
Light Sources, Detectors, and Irradiation Guidelines 59
electron-hole pairs per incident photon even enables determin-
ing the energy of the incident photons.
Like conventional photodiodes, the noise generated in a CCD
chip can be reduced by active cooling. Sensitive CCD chips are
oen equipped with integrated thermoelectric (TE) coolers to
ensure a homogenous and constant temperature distribution of
the chip.
e dynamic range of any detector is dened as the ratio
between the largest input signal that can be measured without
saturating the detector and the smallest signal that can be distin-
guished from noise. e dynamic range is of par ...