Figure 5
(Top) Distribution of the standard deviation of dark noise, which is averaged over dark images. Closed and open symbols correspond to the results for the CCD and CMOS, respectively (circles: without binning; triangles: 2×2 binning; squares: 3×3 binning). To compare the different configurations, both abscissas and ordinates are normalized. The abscissas are normalized by the number of pixels in a bin. The ordinates are normalized by the number of pixels in a single frame. (Bottom) Semi-log plot of the result for the CCD without binning. The solid line indicates the fitting result with a Gaussian function. |