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Proceedings Paper

The darkest EMCCD ever
Author(s): Olivier Daigle; Pierre-Olivier Quirion; Simon Lessard
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Paper Abstract

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.

Paper Details

Date Published: 20 July 2010
PDF: 11 pages
Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 774203 (20 July 2010); doi: 10.1117/12.856405
Show Author Affiliations
Olivier Daigle, Nüvü Cameras (Canada)
Univ. de Montréal (Canada)
Pierre-Olivier Quirion, Canadian Space Agency (Canada)
Simon Lessard, Photon etc. Inc. (Canada)


Published in SPIE Proceedings Vol. 7742:
High Energy, Optical, and Infrared Detectors for Astronomy IV
Andrew D. Holland; David A. Dorn, Editor(s)

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