| 1 | /* ======================================================================== *\
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| 2 | !
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| 3 | ! *
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| 4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
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| 5 | ! * Software. It is distributed to you in the hope that it can be a useful
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| 6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
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| 7 | ! * It is distributed WITHOUT ANY WARRANTY.
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| 8 | ! *
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| 9 | ! * Permission to use, copy, modify and distribute this software and its
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| 10 | ! * documentation for any purpose is hereby granted without fee,
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| 11 | ! * provided that the above copyright notice appear in all copies and
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| 12 | ! * that both that copyright notice and this permission notice appear
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| 13 | ! * in supporting documentation. It is provided "as is" without express
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| 14 | ! * or implied warranty.
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| 15 | ! *
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| 16 | !
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| 17 | !
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| 18 | ! Author(s): Markus Gaug 02/2004 <mailto:markus@ifae.es>
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| 19 | !
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| 20 | ! Copyright: MAGIC Software Development, 2000-2004
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| 21 | !
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| 22 | !
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| 23 | \* ======================================================================== */
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| 24 |
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| 25 | //////////////////////////////////////////////////////////////////////////////
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| 26 | //
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| 27 | // MCalibrationChargeCalc
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| 28 | //
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| 29 | // Task to calculate the calibration conversion factors from the FADC
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| 30 | // time slices. The integrated time slices have to be delivered by an
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| 31 | // MExtractedSignalCam. The pedestals by an MPedestalCam.
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| 32 | //
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| 33 | // The output container MCalibrationCam holds one entry of type MCalibrationChargePix
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| 34 | // for every pixel. It is filled in the following way:
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| 35 | //
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| 36 | // ProProcess: Search for MPedestalCam, MExtractedSignalCam and MExtractedSignalBlindPixel
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| 37 | // Initialize MCalibrationCam
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| 38 | // Initialize pulser light wavelength
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| 39 | //
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| 40 | // ReInit: MCalibrationCam::InitSize(NumPixels) is called which allocates
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| 41 | // memory in a TClonesArray of type MCalibrationChargePix
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| 42 | // Initialize number of used FADC slices
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| 43 | // Optionally exclude pixels from calibration
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| 44 | //
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| 45 | // Process: Every MCalibrationChargePix holds a histogram class,
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| 46 | // MHCalibrationPixel which itself hold histograms of type:
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| 47 | // HCharge(npix) (distribution of summed FADC time slice
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| 48 | // entries)
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| 49 | // HTime(npix) (distribution of position of maximum)
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| 50 | // HChargevsN(npix) (distribution of charges vs. event number.
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| 51 | //
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| 52 | // PostProcess: All histograms HCharge(npix) are fitted to a Gaussian
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| 53 | // All histograms HTime(npix) are fitted to a Gaussian
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| 54 | // The histogram HBlindPixelCharge (blind pixel) is fitted to
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| 55 | // a single PhE fit
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| 56 | //
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| 57 | // The histograms of the PIN Diode are fitted to Gaussians
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| 58 | //
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| 59 | // Fits can be excluded via the commands:
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| 60 | // MalibrationCam::SkipBlindPixelFits() (skip all blind
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| 61 | // pixel fits)
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| 62 | //
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| 63 | // Hi-Gain vs. Lo-Gain Calibration (very memory-intensive)
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| 64 | // can be skipped with the command:
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| 65 | // MalibrationCam::SkipHiLoGainCalibration()
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| 66 | //
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| 67 | // Input Containers:
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| 68 | // MRawEvtData
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| 69 | // MPedestalCam
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| 70 | // MExtractedSignalCam
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| 71 | // MExtractedSignalBlindPixel
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| 72 | //
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| 73 | // Output Containers:
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| 74 | // MCalibrationCam
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| 75 | //
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| 76 | //////////////////////////////////////////////////////////////////////////////
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| 77 | #include "MCalibrationChargeCalc.h"
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| 78 |
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| 79 | // FXIME: Usage of fstream is a preliminary workaround!
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| 80 | #include <fstream>
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| 81 |
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| 82 | #include <TSystem.h>
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| 83 | #include <TH1.h>
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| 84 |
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| 85 | #include "MLog.h"
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| 86 | #include "MLogManip.h"
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| 87 |
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| 88 | #include "MParList.h"
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| 89 |
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| 90 | #include "MGeomCam.h"
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| 91 | #include "MRawRunHeader.h"
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| 92 | #include "MRawEvtPixelIter.h"
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| 93 |
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| 94 | #include "MPedestalCam.h"
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| 95 | #include "MPedestalPix.h"
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| 96 |
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| 97 | #include "MCalibrationChargeCam.h"
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| 98 | #include "MCalibrationChargePix.h"
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| 99 | #include "MCalibrationChargePINDiode.h"
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| 100 | #include "MCalibrationChargeBlindPix.h"
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| 101 |
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| 102 | #include "MExtractedSignalCam.h"
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| 103 | #include "MExtractedSignalPix.h"
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| 104 |
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| 105 |
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| 106 | ClassImp(MCalibrationChargeCalc);
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| 107 |
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| 108 | using namespace std;
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| 109 |
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| 110 | // --------------------------------------------------------------------------
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| 111 | //
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| 112 | // Default constructor.
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| 113 | //
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| 114 | MCalibrationChargeCalc::MCalibrationChargeCalc(const char *name, const char *title)
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| 115 | : fPedestals(NULL), fCam(NULL),
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| 116 | fRawEvt(NULL), fRunHeader(NULL), fGeom(NULL), fEvtTime(NULL),
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| 117 | fSignals(NULL), fPINDiode(NULL), fBlindPixel(NULL)
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| 118 | {
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| 119 |
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| 120 | fName = name ? name : "MCalibrationChargeCalc";
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| 121 | fTitle = title ? title : "Task to calculate the calibration constants and MCalibrationCam ";
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| 122 |
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| 123 | AddToBranchList("MRawEvtData.fHiGainPixId");
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| 124 | AddToBranchList("MRawEvtData.fLoGainPixId");
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| 125 | AddToBranchList("MRawEvtData.fHiGainFadcSamples");
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| 126 | AddToBranchList("MRawEvtData.fLoGainFadcSamples");
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| 127 |
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| 128 | Clear();
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| 129 | }
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| 130 |
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| 131 | void MCalibrationChargeCalc::Clear(const Option_t *o)
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| 132 | {
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| 133 |
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| 134 | SETBIT(fFlags, kUseQualityChecks);
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| 135 | SETBIT(fFlags, kHiLoGainCalibration);
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| 136 |
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| 137 | fNumHiGainSamples = 0;
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| 138 | fNumLoGainSamples = 0;
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| 139 | fConversionHiLo = 0;
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| 140 | fNumExcludedPixels = 0;
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| 141 |
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| 142 | }
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| 143 |
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| 144 |
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| 145 | // --------------------------------------------------------------------------
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| 146 | //
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| 147 | // The PreProcess searches for the following input containers:
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| 148 | // - MRawEvtData
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| 149 | // - MPedestalCam
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| 150 | //
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| 151 | // The following output containers are also searched and created if
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| 152 | // they were not found:
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| 153 | //
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| 154 | // - MCalibrationCam
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| 155 | //
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| 156 | // The following output containers are only searched, but not created
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| 157 | //
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| 158 | // - MTime
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| 159 | //
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| 160 | Int_t MCalibrationChargeCalc::PreProcess(MParList *pList)
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| 161 | {
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| 162 |
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| 163 | fRawEvt = (MRawEvtData*)pList->FindObject("MRawEvtData");
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| 164 | if (!fRawEvt)
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| 165 | {
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| 166 | *fLog << err << "MRawEvtData not found... aborting." << endl;
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| 167 | return kFALSE;
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| 168 | }
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| 169 |
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| 170 | const MRawRunHeader *runheader = (MRawRunHeader*)pList->FindObject("MRawRunHeader");
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| 171 | if (!runheader)
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| 172 | *fLog << warn << "Warning - cannot check file type, MRawRunHeader not found." << endl;
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| 173 | else
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| 174 | if (runheader->IsMonteCarloRun())
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| 175 | return kTRUE;
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| 176 |
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| 177 | fCam = (MCalibrationChargeCam*)pList->FindCreateObj("MCalibrationChargeCam");
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| 178 | if (!fCam)
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| 179 | return kFALSE;
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| 180 |
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| 181 | fPINDiode = (MCalibrationChargePINDiode*)pList->FindCreateObj("MCalibrationChargePINDiode");
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| 182 | if (!fPINDiode)
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| 183 | return kFALSE;
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| 184 |
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| 185 | fCam->SetPINDiode(fPINDiode);
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| 186 |
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| 187 | fBlindPixel = (MCalibrationChargeBlindPix*)pList->FindCreateObj("MCalibrationChargeBlindPix");
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| 188 | if (!fBlindPixel)
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| 189 | return kFALSE;
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| 190 |
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| 191 | fCam->SetBlindPixel(fBlindPixel);
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| 192 |
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| 193 | fEvtTime = (MTime*)pList->FindObject("MTime");
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| 194 |
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| 195 | fPedestals = (MPedestalCam*)pList->FindObject("MPedestalCam");
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| 196 | if (!fPedestals)
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| 197 | {
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| 198 | *fLog << err << "MPedestalCam not found... aborting" << endl;
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| 199 | return kFALSE;
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| 200 | }
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| 201 |
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| 202 | fSignals = (MExtractedSignalCam*)pList->FindObject("MExtractedSignalCam");
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| 203 | if (!fSignals)
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| 204 | {
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| 205 | *fLog << err << "MExtractedSignalCam not found... aborting" << endl;
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| 206 | return kFALSE;
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| 207 | }
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| 208 |
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| 209 | return kTRUE;
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| 210 | }
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| 211 |
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| 212 |
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| 213 | // --------------------------------------------------------------------------
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| 214 | //
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| 215 | // The ReInit searches for the following input containers:
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| 216 | // - MRawRunHeader
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| 217 | //
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| 218 | Bool_t MCalibrationChargeCalc::ReInit(MParList *pList )
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| 219 | {
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| 220 | fRunHeader = (MRawRunHeader*)pList->FindObject("MRawRunHeader");
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| 221 | if (!fRunHeader)
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| 222 | {
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| 223 | *fLog << err << "MRawRunHeader not found... aborting." << endl;
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| 224 | return kFALSE;
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| 225 | }
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| 226 |
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| 227 | fGeom = (MGeomCam*)pList->FindObject("MGeomCam");
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| 228 | if (!fGeom)
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| 229 | {
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| 230 | *fLog << err << "No MGeomCam found... aborting." << endl;
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| 231 | return kFALSE;
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| 232 | }
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| 233 |
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| 234 | fCam->SetGeomCam(fGeom);
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| 235 |
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| 236 | fNumHiGainSamples = fSignals->GetNumUsedHiGainFADCSlices();
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| 237 | fNumLoGainSamples = fSignals->GetNumUsedLoGainFADCSlices();
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| 238 | fSqrtHiGainSamples = TMath::Sqrt((Float_t)fNumHiGainSamples);
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| 239 |
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| 240 | UInt_t npixels = fGeom->GetNumPixels();
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| 241 |
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| 242 | for (UInt_t i=0; i<npixels; i++)
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| 243 | {
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| 244 | MCalibrationChargePix &pix = (*fCam)[i];
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| 245 | pix.DefinePixId(i);
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| 246 |
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| 247 | pix.SetAbsTimeBordersHiGain(fSignals->GetFirstUsedSliceHiGain(),
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| 248 | fSignals->GetLastUsedSliceHiGain());
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| 249 | pix.SetAbsTimeBordersLoGain(fSignals->GetFirstUsedSliceLoGain(),
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| 250 | fSignals->GetLastUsedSliceLoGain());
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| 251 | }
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| 252 |
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| 253 | if (fExcludedPixelsFile.IsNull())
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| 254 | return kTRUE;
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| 255 |
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| 256 | //
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| 257 | // Look for file to exclude pixels from analysis
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| 258 | //
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| 259 | gSystem->ExpandPathName(fExcludedPixelsFile);
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| 260 |
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| 261 | //
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| 262 | // Initialize reading the file
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| 263 | //
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| 264 | ifstream in(fExcludedPixelsFile);
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| 265 | if (!in)
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| 266 | {
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| 267 | *fLog << warn << "Cannot open file '" << fExcludedPixelsFile << "'" << endl;
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| 268 | return kTRUE;
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| 269 | }
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| 270 |
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| 271 | *fLog << inf << "Use excluded pixels from file: '" << fExcludedPixelsFile << "'" << endl;
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| 272 |
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| 273 | //
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| 274 | // Read the file and count the number of entries
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| 275 | //
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| 276 | UInt_t pixel = 0;
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| 277 |
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| 278 | while (++fNumExcludedPixels)
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| 279 | {
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| 280 | in >> pixel;
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| 281 | if (!in)
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| 282 | break;
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| 283 |
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| 284 | //
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| 285 | // Check for out of range
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| 286 | //
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| 287 | if (pixel > npixels)
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| 288 | {
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| 289 | *fLog << warn << "WARNING: To be excluded pixel: " << pixel << " is out of range " << endl;
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| 290 | continue;
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| 291 | }
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| 292 | //
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| 293 | // Exclude pixel
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| 294 | //
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| 295 | MCalibrationChargePix &pix = (*fCam)[pixel];
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| 296 | pix.SetExcluded();
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| 297 |
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| 298 | *fLog << GetDescriptor() << inf << ": Exclude Pixel: " << pixel << endl;
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| 299 |
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| 300 | }
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| 301 |
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| 302 | if (--fNumExcludedPixels == 0)
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| 303 | *fLog << warn << "WARNING: File '" << fExcludedPixelsFile << "'" << " is empty " << endl;
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| 304 | else
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| 305 | fCam->SetNumPixelsExcluded(fNumExcludedPixels);
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| 306 |
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| 307 | return kTRUE;
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| 308 | }
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| 309 |
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| 310 |
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| 311 | // --------------------------------------------------------------------------
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| 312 | //
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| 313 | // Calculate the integral of the FADC time slices and store them as a new
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| 314 | // pixel in the MCerPhotEvt container.
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| 315 | //
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| 316 | Int_t MCalibrationChargeCalc::Process()
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| 317 | {
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| 318 | return kTRUE;
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| 319 | }
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| 320 |
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| 321 | Int_t MCalibrationChargeCalc::PostProcess()
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| 322 | {
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| 323 |
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| 324 | //
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| 325 | // loop over the pedestal events and check if we have calibration
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| 326 | //
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| 327 | Int_t nvalid = 0;
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| 328 | Float_t avinnerped = 0;
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| 329 | Float_t avinnerprms = 0;
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| 330 | Float_t avinnernum = 0;
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| 331 | Float_t avouterped = 0;
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| 332 | Float_t avouterprms = 0;
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| 333 | Float_t avouternum = 0;
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| 334 |
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| 335 | for (Int_t pixid=0; pixid<fPedestals->GetSize(); pixid++)
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| 336 | {
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| 337 |
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| 338 | MCalibrationChargePix &pix = (*fCam)[pixid];
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| 339 |
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| 340 | //
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| 341 | // get the pedestals
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| 342 | //
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| 343 | const Float_t ped = (*fPedestals)[pixid].GetPedestal();
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| 344 | const Float_t prms = (*fPedestals)[pixid].GetPedestalRms();
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| 345 | const Float_t num = TMath::Sqrt((Float_t)fPedestals->GetTotalEntries());
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| 346 |
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| 347 | if (ped == -1.)
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| 348 | pix.SetExcluded();
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| 349 |
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| 350 | //
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| 351 | // Check if the pixel has been excluded from the fits
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| 352 | //
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| 353 | if (pix.IsExcluded())
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| 354 | continue;
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| 355 |
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| 356 | if (fGeom->GetPixRatio(pixid) == 1.)
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| 357 | {
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| 358 | avinnerped += ped;
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| 359 | avinnerprms += prms;
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| 360 | avinnernum++;
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| 361 | }
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| 362 | else
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| 363 | {
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| 364 | avouterped += ped;
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| 365 | avouterprms += prms;
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| 366 | avouternum++;
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| 367 | }
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| 368 | //
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| 369 | // set them in the calibration camera
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| 370 | //
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| 371 | if (pix.IsHiGainSaturation())
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| 372 | {
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| 373 | pix.SetPedestal(ped * fNumLoGainSamples,
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| 374 | prms * TMath::Sqrt((Float_t)fNumLoGainSamples),
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| 375 | prms * fNumLoGainSamples / num);
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| 376 | pix.SetNumLoGainSamples((Float_t)fNumLoGainSamples);
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| 377 | pix.ApplyLoGainConversion();
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| 378 | }
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| 379 | else
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| 380 | {
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| 381 | pix.SetPedestal(ped * fNumHiGainSamples,
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| 382 | prms * TMath::Sqrt((Float_t)fNumHiGainSamples),
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| 383 | prms * fNumHiGainSamples / num);
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| 384 | }
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| 385 |
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| 386 | if (!pix.CheckChargeValidity() || !pix.CheckTimeValidity())
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| 387 | continue;
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| 388 |
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| 389 | nvalid++;
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| 390 |
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| 391 | if (!pix.CalcReducedSigma())
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| 392 | continue;
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| 393 |
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| 394 | pix.CalcFFactorMethod();
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| 395 |
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| 396 | }
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| 397 |
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| 398 |
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| 399 |
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| 400 | //
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| 401 | // The Michele check ...
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| 402 | //
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| 403 | if (nvalid == 0)
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| 404 | {
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| 405 | *fLog << err << GetDescriptor() << ": Dear Michele! All pixels have non-valid calibration. "
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| 406 | << "Did you forget to fill the histograms (filling MHCalibrationChargeCam from MExtractedSignalCam using MFillH) ? " << endl;
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| 407 | return kFALSE;
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| 408 | }
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| 409 |
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| 410 | MCalibrationChargePix *avinnerpix = fCam->GetAverageInnerPix();
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| 411 | MCalibrationChargePix *avouterpix = fCam->GetAverageOuterPix();
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| 412 | //
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| 413 | // set the pedestans in the calibration camera
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| 414 | //
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| 415 | if (avinnerpix->IsHiGainSaturation())
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| 416 | {
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| 417 | avinnerpix->SetPedestal(avinnerped/avinnernum * fNumLoGainSamples,
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| 418 | avinnerprms/avinnernum * TMath::Sqrt((Float_t)fNumLoGainSamples),
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| 419 | avinnerprms/avinnernum * TMath::Sqrt((Float_t)fNumLoGainSamples/avinnernum));
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| 420 | avinnerpix->SetNumLoGainSamples((Float_t)fNumLoGainSamples);
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| 421 | avinnerpix->ApplyLoGainConversion();
|
|---|
| 422 | }
|
|---|
| 423 | else
|
|---|
| 424 | {
|
|---|
| 425 | avinnerpix->SetPedestal(avinnerped/avinnernum * fNumHiGainSamples,
|
|---|
| 426 | avinnerprms/avinnernum * TMath::Sqrt((Float_t)fNumHiGainSamples),
|
|---|
| 427 | avinnerprms/avinnernum * TMath::Sqrt((Float_t)fNumHiGainSamples/avinnernum));
|
|---|
| 428 | }
|
|---|
| 429 |
|
|---|
| 430 | if (avouterpix->IsHiGainSaturation())
|
|---|
| 431 | {
|
|---|
| 432 | avouterpix->SetPedestal(avouterped/avouternum * fNumLoGainSamples,
|
|---|
| 433 | avouterprms/avouternum * TMath::Sqrt((Float_t)fNumLoGainSamples),
|
|---|
| 434 | avouterprms/avouternum * TMath::Sqrt((Float_t)fNumLoGainSamples/avouternum));
|
|---|
| 435 | avouterpix->SetNumLoGainSamples((Float_t)fNumLoGainSamples);
|
|---|
| 436 | avouterpix->ApplyLoGainConversion();
|
|---|
| 437 | }
|
|---|
| 438 | else
|
|---|
| 439 | {
|
|---|
| 440 | avouterpix->SetPedestal(avouterped/avouternum * fNumHiGainSamples,
|
|---|
| 441 | avouterprms/avouternum * TMath::Sqrt((Float_t)fNumHiGainSamples),
|
|---|
| 442 | avouterprms/avouternum * TMath::Sqrt((Float_t)fNumHiGainSamples/avouternum));
|
|---|
| 443 | }
|
|---|
| 444 |
|
|---|
| 445 | if (!avinnerpix->CheckChargeValidity() || !avinnerpix->CheckTimeValidity())
|
|---|
| 446 | if (!avinnerpix->CalcReducedSigma())
|
|---|
| 447 | avinnerpix->CalcFFactorMethod();
|
|---|
| 448 |
|
|---|
| 449 | if (!avouterpix->CheckChargeValidity() || !avouterpix->CheckTimeValidity())
|
|---|
| 450 | if (!avouterpix->CalcReducedSigma())
|
|---|
| 451 | avouterpix->CalcFFactorMethod();
|
|---|
| 452 |
|
|---|
| 453 |
|
|---|
| 454 | if (!fBlindPixel->CheckChargeFitValidity())
|
|---|
| 455 | {
|
|---|
| 456 | *fLog << warn << "Could not calculate the flux of photons from the PIN Diode, charge fit not valid " << endl;
|
|---|
| 457 | fCam->SetBlindPixelMethodValid(kFALSE);
|
|---|
| 458 | }
|
|---|
| 459 | else
|
|---|
| 460 | {
|
|---|
| 461 | if (!fBlindPixel->CalcFluxInsidePlexiglass())
|
|---|
| 462 | {
|
|---|
| 463 | *fLog << warn << "Could not calculate the flux of photons from the PIN Diode, will skip PIN Diode Calibration " << endl;
|
|---|
| 464 | fCam->SetBlindPixelMethodValid(kFALSE);
|
|---|
| 465 | }
|
|---|
| 466 | else
|
|---|
| 467 | {
|
|---|
| 468 | fCam->SetBlindPixelMethodValid(kTRUE);
|
|---|
| 469 | fCam->ApplyBlindPixelCalibration();
|
|---|
| 470 | }
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 | if (!fPINDiode->CheckChargeFitValidity() || !fPINDiode->CheckTimeFitValidity())
|
|---|
| 474 | {
|
|---|
| 475 | *fLog << warn << "Could not calculate the flux of photons from the PIN Diode, charge fit not valid " << endl;
|
|---|
| 476 | fCam->SetPINDiodeMethodValid(kFALSE);
|
|---|
| 477 | }
|
|---|
| 478 | else
|
|---|
| 479 | {
|
|---|
| 480 | if (!fPINDiode->CalcFluxOutsidePlexiglass())
|
|---|
| 481 | {
|
|---|
| 482 | *fLog << warn << "Could not calculate the flux of photons from the PIN Diode, will skip PIN Diode Calibration " << endl;
|
|---|
| 483 | fCam->SetPINDiodeMethodValid(kFALSE);
|
|---|
| 484 | }
|
|---|
| 485 | else
|
|---|
| 486 | {
|
|---|
| 487 | fCam->SetPINDiodeMethodValid(kTRUE);
|
|---|
| 488 | fCam->ApplyPINDiodeCalibration();
|
|---|
| 489 | }
|
|---|
| 490 | }
|
|---|
| 491 | fCam->SetReadyToSave();
|
|---|
| 492 |
|
|---|
| 493 | return kTRUE;
|
|---|
| 494 | }
|
|---|
