1313DXT-I/1515DXT-I/2520DX-I/3030DX-I X-ray Detectors
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U
SER
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ANUAL
6
A
System Settings
window appears. The detector image corrections may be changed.
Figure 36
System Settings Window
10.5
Calibration Procedures
This section describes the different calibration procedures that are necessary for the detector
function.
10.5.1
Offset Calibration
Offset calibration compensates for fixed pattern pixel intensity variations in the image associated
with the dark current and electronic offsets. The offset reference image is an average of a series of
frames acquired without X-ray illumination and referred to as dark fields.
Note
Offset calibration should not be performed during X-ray.
Note
The X-ray-to-digital conversion factor does not change as a result of
calibration.
Note
An offset calibration should be performed as often as necessary for
acceptable images in the application the detector is being used in. The offset
varies as a function of detector temperature and frame rate.
