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Figure 3
Schematic example of the correction of gain for a single pixel. Artificial example data of exaggerated nonlinearty show the dependence of a single pixel reading dn as a function of the total intensity i at a constant intensity distribution on the entire detector (small black dots). The data have been parametrized to form a calibration curve cn(i) (blue line). An example data tuple (im,dnm) shows a deviation [\Delta d_{{nm}}] from the expected calibrated value c(im). This deviation is subject to a different intensity dependence (gain) than at the the intensity ic at which a quantitative calibration dataset was taken. This deviation in detector response can be accounted for by the ratio [{{c_{n}^{\,{\prime}}(i_{c})} / {c_{n}^{\,{\prime}}(i_{m})}}].

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 22| Part 3| May 2015| Pages 584-591
https://doi.org/10.1107/S1600577515005536
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