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TDAS-Extractor

Timestamp:

02/21/05 21:15:10 (20 years ago)

Author:

gaug

Message:

*** empty log message ***

File:

-              r6656
+              r6659
 Unfortunately, part of our recent data, taken in December~2004 and January~2005 had a severe problem with the pulse location
 within the recorded FADC slices. In the recorded samples, the low-gain pulse situated so far to the right that a part of
 it has not been recorded any more. This poses severe problems to all extractors which integrate the entire low-gain pulse.
+within the recorded FADC slices. In the recorded samples, the low-gain pulse is situated so far to the right that a part of
+it reaches out of the recorded window. This poses severe problems to all extractors which integrate the entire low-gain pulse.
 We have seen that the spline extractor and the digital filter over 4~FADC slices are still capable to reconstruct the low-gain
+pulse properly for this partly corrupt data sample.
+pulse properly for this partly corrupt data sample, although the linearity of the reconstructed signal might still be affected above
+signals of about 300~photo-electrons per pixel.
+\par
+Special caution has to be made if the F-Factor method is applied for calibration with signal extractors which have an
+intensity-dependent resolution. This applies especially to the spline algorithms and the digital filter over a window size
+of 4~FADC slices.
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