Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7742e...2d&link_type=abstract
High Energy, Optical, and Infrared Detectors for Astronomy IV. Edited by Holland, Andrew D.; Dorn, David A. Proceedings of th
Astronomy and Astrophysics
Astronomy
Scientific paper
EMCCDs are devices capable of sub-electron read-out noise at high pixel rate, together with a high quantum efficiency (QE). However, they are plagued by an excess noise factor (ENF) which has the same effect on photometric measurement as if the QE would be halved. In order to get rid of the ENF, the photon counting (PC) operation is mandatory, with the drawback of counting only one photon per pixel per frame. The high frame rate capability of the EMCCDs comes to the rescue, at the price of increased clock induced charges (CIC), which dominates the noise budget of the EMCCD. The CIC can be greatly reduced with an appropriate clocking, which renders the PC operation of the EMCCD very efficient for faint flux photometry or spectroscopy, adaptive optics, ultrafast imaging and Lucky Imaging. This clocking is achievable with a new EMCCD controller: CCCP, the CCD Controller for Counting Photons. This new controller, which is now commercialized by Nüvü cameras inc., was integrated into an EMCCD camera and tested at the observatoire du mont-M'egantic. The results are presented in this paper.
Daigle Olivier
Lessard Simon
Quirion Pierre-Olivier
No associations
LandOfFree
The darkest EMCCD ever does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The darkest EMCCD ever, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The darkest EMCCD ever will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-981944