Calibration
General Principle
Notation
Calibration can be done by image acquisition S/W. The gain-
offset correction (under calibration) will be done with one dark, at
least one bright and object frame.
Parameter Description
Offset Dark image, acquired image without X-ray exposure
Bright Acquired image with X-ray exposure
Object Bright image with object, will be calibrated
Gain Gain of imaging system, offset subtracted image
Offset correction Offset subtract
Gain correction Compensate gain variance of pixel
X-ray
detector
should be
used at stable state
within driving
temperature range.
Acquire the X-ray
images after power
on and 5 minutes
warming up to
obtain high quality
images.
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