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Figure 4
(a) Intensity profile of the 1000th row of a dark-current image recorded with an accumulation time of 1 s. (b) A difference profile between two dark-current images recorded with a 1 s accumulation time. The standard deviation of the difference profile is 5.1 ADU which is comparable to convolution of the σall values of the two images.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 42| Part 6| December 2009| Pages 1165-1175
https://doi.org/10.1107/S0021889809042277
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