Changeset 5977 for trunk/MagicSoft/Mars/manalysis/MMcCalibrationUpdate.cc

Timestamp:

01/24/05 19:38:51 (20 years ago)

Author:

moralejo

Message:

*** empty log message ***

File:

• trunk/MagicSoft/Mars/manalysis/MMcCalibrationUpdate.cc (modified) (3 diffs)

trunk/MagicSoft/Mars/manalysis/MMcCalibrationUpdate.cc

@@ -333 +333 @@
             avqe = MCalibrationQEPix::gkDefaultAverageQE*fOuterPixelsLightCollection;
 
+        qepix.SetAvNormFFactor(1.);
+        // This factor should convert the default average QE to average QE 
+        // for a spectrum like that of Cherenkov light. See the documentation 
+        // of MCalibrationQEPix. Here it is 1 because we calibrate using 
+        // Cherenkov light.
+
         qepix.SetAverageQE(avqe);
     }
@@ -343 +349 @@
 //
 // Fill the MCerPhotPed object
+//
+// This has to be done on an event by event basis because the (calibrated) pedestal 
+// fluctuations depend on whether, for each pixel, we are using the high gain or the 
+// low gain branch.
 //
 Int_t MMcCalibrationUpdate::Process()
@@ -386 +396 @@
         MCalibrationQEPix &qepix = (MCalibrationQEPix&)(*fQECam)[i];
 
-        qepix.SetAvNormFFactor(1.);
-        // This factor should convert the default average QE to average QE 
-        // for a spectrum like that of Cherenkov light. See the documentation 
-        // of MCalibrationQEPix. Here it is 1 because we calibrate using 
-        // Cherenkov light.
-
         Float_t qe       = qepix.GetAverageQE();
         Float_t adc2phot = calpix.GetMeanConvFADC2Phe() / qe;