Low-light detection with the new ORCA II

Hamamatsu Photonics is introducing the successor to the ORCA II range. The new ORCA II is pushing the limits in ultra-low light detection and now comes with a 1M pixel Back-thinned CCD (BT-CCD), cooled down to -90degC and programmable trigger signal output. This restricts dark current to 0.0012 electrons/pixel/seconds and provides very high quantum efficiency (QE) across the broad spectrum of 200 nm to 900 nm with a peak QE >90 per cent. These key features, together with very long exposure times (of up to 120 minutes), allows for the detection of even the faintest light. The new camera is supplied with programmable trigger signal outputs to guarantee precise measurement control and data capture.