Calibration Procedures; Offset Calibration; Figure 36 System Settings Window - Varex Imaging PaxScan 1313DXT-I Manual

A System Settings window appears. The detector image corrections may be changed.
6

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.
Offset calibration should not be performed during X-ray.
Note
The X-ray-to-digital conversion factor does not change as a result of
Note
calibration.
An offset calibration should be performed as often as necessary for
acceptable images in the application the detector is being used in. The offset
Note
varies as a function of detector temperature and frame rate.
36
1313DXT-I/1515DXT-I/2520DX-I/3030DX-I X-ray Detectors
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