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Calibration:

Determination Absorbed dose-pixel value

Remember that if using a 48 bits scanner :pixel value per color channel [0,65535]

Some film dosimetry softwares use calibration curves: absorbed dose-pixel value

Fit to a polynomic function or to a rational function (shape corresponding to the dose-

response characteristic of the film)

Fuß et al, PMB 52 (2007)

X(D) = a + b/(D-c)