Optical test results of fast pnCCDs

Measurements with a high-speed pn-charge coupled device (pnCCD) system have been performed in the optical and near infrared (NIR) wavelength range. Some of the key parameters of the system that were determined include the overall quantum efficiency (QE), the point spread function (PSF) and the photon transfer curve (PTC). The results of these measurements will be presented below. The measurements have been carried out at the optical test bench of ESO in Garching, Germany. There we also demonstrated for the first time the feasibility of a fast readout scheme that allows the system to be operated at a speed of up to 1000 frames per second (fps) for use with optical light. Additionally astronomical test measurements have been performed at the Skinakas telescope on Crete, Greece.