Open Access

Fig. 4.


Histograms of counts measured on a single pixel, with a low-flux illumination (< 1 e frame−1 pixel−1, darker blue) and with a high flux illumination (< 3 e frame−1 pixel−1, lighter blue). The total gain is 50 ADU/e. The histogram without illumination is shown in green and represents the intrinsic statistic of the zero-photon events.

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