What is the average LsB value in the Dark frames?

[chulheelee-hub]

What is the average LsB value in the Dark frames?

[chulheelee-hub]

Dark Frame: -Detector image acquired without radiating X-rays. -The offset that the detector basically has. -Removes dark images from images acquired by radiating X-rays.

1. S-Panel (0.5sec standard):

   Semi-Auto Trigger dark: Average 100 ~ 300 LSB Manual Trigger dark: Average 2000 ~ 3000 LSB

2. V-Panel (0.5sec standard)

   Auto Trigger dark: Average 800 ~ 1000 LSB Manual Trigger dark: Average 2000 ~ 3000 LSB

3. R-Panel has an average of 2000~4000 LSB for both Auto and Manual Trigger dark.

4. I-Panel averages 1000~3000 LSB for both Auto and Manual Trigger dark

The figure below is a dark frame with temperature CAL and as the temperature increases, the LSB also increases. This is why CAL should be performed after sufficient aging of the detector to obtain a good image in the field.