Detector Counts Need Calibration

Rail Limit Clips Detector

output stops at the cap

An ideal detector rail caps the reported output. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

The affine output can exceed the rail

The unclipped output is 25.

Yraw=25Y_{\text{raw}}=25
Detector calibrationBaseline and gain set the reported signal.measureddarknetoutput1531225

The rail sets the displayed output

The rail is 20, so the displayed output is 20. This is a hard limit, not a saturation curve.

Y=min⁡(25,20)=20Y=\min(25,20)=20
Detector calibrationBaseline and gain set the reported signal.measureddarknetoutput1531220