| 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 11/2003 <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 | // MCalibrationIntensityRelTimeCam
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| 27 | //
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| 28 | // Storage container for intensity charge calibration results.
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| 29 | //
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| 30 | // Individual MCalibrationRelTimeCam's can be retrieved with:
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| 31 | // - GetCam() yielding the current cam.
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| 32 | // - GetCam("name") yielding the current camera with name "name".
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| 33 | // - GetCam(i) yielding the i-th camera.
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| 34 | //
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| 35 | // See also: MCalibrationIntensityCam, MCalibrationRelTimeCam,
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| 36 | // MCalibrationRelTimePix, MCalibrationRelTimeCalc, MCalibrationQECam
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| 37 | // MHCalibrationRelTimePix, MHCalibrationRelTimeCam
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| 38 | //
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| 39 | /////////////////////////////////////////////////////////////////////////////
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| 40 | #include "MCalibrationIntensityRelTimeCam.h"
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| 41 | #include "MCalibrationRelTimeCam.h"
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| 42 | #include "MCalibrationChargeCam.h"
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| 43 | #include "MCalibrationRelTimePix.h"
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| 44 | #include "MCalibrationChargePix.h"
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| 45 |
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| 46 | #include "MGeomCam.h"
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| 47 | #include "MGeomPix.h"
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| 48 |
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| 49 | #include "MHCamera.h"
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| 50 |
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| 51 | #include "MLogManip.h"
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| 52 |
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| 53 | #include <TOrdCollection.h>
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| 54 | #include <TGraphErrors.h>
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| 55 | #include <TH1D.h>
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| 56 | #include <TF1.h>
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| 57 |
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| 58 | ClassImp(MCalibrationIntensityRelTimeCam);
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| 59 |
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| 60 | using namespace std;
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| 61 |
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| 62 | // --------------------------------------------------------------------------
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| 63 | //
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| 64 | // Default constructor.
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| 65 | //
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| 66 | MCalibrationIntensityRelTimeCam::MCalibrationIntensityRelTimeCam(const char *name, const char *title)
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| 67 | {
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| 68 |
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| 69 | fName = name ? name : "MCalibrationIntensityRelTimeCam";
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| 70 | fTitle = title ? title : "Results of the Intensity Calibration";
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| 71 |
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| 72 | InitSize(1);
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| 73 | }
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| 74 |
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| 75 | // -------------------------------------------------------------------
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| 76 | //
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| 77 | // Add MCalibrationRelTimeCam's in the ranges from - to.
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| 78 | //
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| 79 | void MCalibrationIntensityRelTimeCam::Add(const UInt_t from, const UInt_t to)
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| 80 | {
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| 81 | for (UInt_t i=from; i<to; i++)
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| 82 | fCams->AddAt(new MCalibrationRelTimeCam,i);
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| 83 | }
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| 84 |
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| 85 | TGraphErrors *MCalibrationIntensityRelTimeCam::GetTimeResVsCharge( const UInt_t pixid, const MCalibrationIntensityChargeCam &chargecam, const MCalibrationCam::PulserColor_t col)
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| 86 | {
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| 87 |
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| 88 | if (chargecam.GetSize() != GetSize())
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| 89 | {
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| 90 | *fLog << err << GetDescriptor() << ": Size mismatch between MCalibrationIntensityRelTimeCam "
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| 91 | << "and MCalibrationIntensityChargeCam. " << endl;
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| 92 | return NULL;
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| 93 | }
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| 94 |
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| 95 | Int_t size = CountNumEntries(col);
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| 96 |
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| 97 | if (size == 0)
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| 98 | return NULL;
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| 99 |
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| 100 | if (size != chargecam.CountNumEntries(col))
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| 101 | {
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| 102 | *fLog << err << GetDescriptor() << ": Size mismatch in colour between MCalibrationIntensityRelTimeCam "
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| 103 | << "and MCalibrationIntensityChargeCam. " << endl;
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| 104 | return NULL;
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| 105 | }
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| 106 |
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| 107 | const Int_t nvalid = chargecam.CountNumValidEntries(pixid,col);
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| 108 |
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| 109 | if (nvalid == 0)
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| 110 | {
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| 111 | *fLog << err << GetDescriptor() << ": Only un-calibrated events in pixel: " << pixid << endl;
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| 112 | return NULL;
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| 113 | }
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| 114 |
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| 115 | TArrayF res(nvalid);
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| 116 | TArrayF reserr(nvalid);
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| 117 | TArrayF sig(nvalid);
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| 118 | TArrayF sigerr(nvalid);
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| 119 |
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| 120 | const Float_t sqrt2 = 1.414;
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| 121 | const Float_t fadc2ns = 3.333;
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| 122 |
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| 123 | Int_t cnt = 0;
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| 124 |
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| 125 | for (Int_t i=0;i<GetSize();i++)
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| 126 | {
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| 127 | //
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| 128 | // Get the calibration cam from the intensity cam
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| 129 | //
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| 130 | MCalibrationChargeCam *cam = (MCalibrationChargeCam*)chargecam.GetCam(i);
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| 131 | MCalibrationRelTimeCam *relcam = (MCalibrationRelTimeCam*)GetCam(i);
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| 132 |
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| 133 | if (col != MCalibrationCam::kNONE)
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| 134 | if (relcam->GetPulserColor() != col)
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| 135 | continue;
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| 136 | //
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| 137 | // Get the calibration pix from the calibration cam
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| 138 | //
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| 139 | MCalibrationChargePix &pix = (MCalibrationChargePix&)(*cam)[pixid];
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| 140 | MCalibrationRelTimePix &relpix = (MCalibrationRelTimePix&)(*relcam)[pixid];
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| 141 | //
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| 142 | // Don't use bad pixels
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| 143 | //
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| 144 | if (!pix.IsFFactorMethodValid())
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| 145 | continue;
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| 146 | //
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| 147 | res[cnt] = relpix.GetTimePrecision() / sqrt2 * fadc2ns;
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| 148 | reserr[cnt] = relpix.GetTimePrecisionErr() / sqrt2 * fadc2ns;
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| 149 | //
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| 150 | sig [cnt] = pix.GetPheFFactorMethod();
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| 151 | sigerr[cnt] = pix.GetPheFFactorMethodErr();
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| 152 | cnt++;
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| 153 | }
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| 154 |
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| 155 | TGraphErrors *gr = new TGraphErrors(nvalid,
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| 156 | sig.GetArray(),res.GetArray(),
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| 157 | sigerr.GetArray(),reserr.GetArray());
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| 158 | gr->SetTitle(Form("%s%3i","Pixel ",pixid));
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| 159 | gr->GetXaxis()->SetTitle("<Photo-electrons> [1]");
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| 160 | gr->GetYaxis()->SetTitle("Time Resolution [ns]");
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| 161 | return gr;
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| 162 | }
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| 163 |
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| 164 |
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| 165 | TGraphErrors *MCalibrationIntensityRelTimeCam::GetTimeResVsChargePerArea( const Int_t aidx,const MCalibrationIntensityChargeCam &chargecam, const MGeomCam &geom, const MCalibrationCam::PulserColor_t col)
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| 166 | {
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| 167 |
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| 168 | Int_t size = CountNumEntries(col);
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| 169 |
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| 170 | if (size == 0)
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| 171 | return NULL;
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| 172 |
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| 173 | if (size != chargecam.CountNumEntries(col))
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| 174 | {
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| 175 | *fLog << err << GetDescriptor() << ": Size mismatch in colour between MCalibrationIntensityRelTimeCam "
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| 176 | << "and MCalibrationIntensityChargeCam. " << endl;
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| 177 | return NULL;
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| 178 | }
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| 179 |
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| 180 | if (col == MCalibrationCam::kBLUE)
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| 181 | size -= 5;
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| 182 | if (col == MCalibrationCam::kNONE)
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| 183 | size -= 5;
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| 184 |
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| 185 | const Float_t sqrt2 = 1.414;
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| 186 | const Float_t fadc2ns = 3.333;
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| 187 | const Float_t norm = fadc2ns / sqrt2;
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| 188 |
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| 189 | TArrayD res(size);
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| 190 | TArrayD reserr(size);
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| 191 | TArrayD sig(size);
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| 192 | TArrayD sigerr(size);
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| 193 |
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| 194 | Int_t cnt = 0;
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| 195 |
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| 196 | TH1D *h = 0;
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| 197 |
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| 198 | for (Int_t i=0;i<GetSize();i++)
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| 199 | {
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| 200 | //
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| 201 | // Get the calibration cam from the intensity cam
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| 202 | //
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| 203 | MCalibrationRelTimeCam *relcam = (MCalibrationRelTimeCam*)GetCam(i);
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| 204 | MCalibrationChargeCam *cam = (MCalibrationChargeCam*)chargecam.GetCam(i);
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| 205 |
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| 206 | if (relcam->GetPulserColor() != col && col != MCalibrationCam::kNONE)
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| 207 | continue;
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| 208 |
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| 209 | const MCalibrationChargePix &apix = (MCalibrationChargePix&)cam->GetAverageArea(aidx);
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| 210 | const Double_t phe = (Double_t)apix.GetPheFFactorMethod();
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| 211 | const Double_t pheerr = (Double_t)apix.GetPheFFactorMethodErr();
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| 212 |
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| 213 | if (relcam->GetPulserColor() == MCalibrationCam::kBLUE)
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| 214 | if (aidx == 0)
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| 215 | {
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| 216 | if (phe > 100. && phe < 190.)
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| 217 | continue;
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| 218 | }
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| 219 | else
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| 220 | {
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| 221 | if (phe > 200. && phe < 480.)
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| 222 | continue;
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| 223 | }
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| 224 |
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| 225 | if (relcam->GetPulserColor() == MCalibrationCam::kUV)
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| 226 | *fLog << inf << "NUMBER: " << i << endl;
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| 227 |
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| 228 | sig[cnt] = phe;
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| 229 | sigerr[cnt] = pheerr;
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| 230 |
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| 231 | Double_t resol = 0.;
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| 232 | Double_t resol2 = 0.;
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| 233 | Double_t var = 0.;
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| 234 | Int_t num = 0;
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| 235 |
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| 236 | MHCamera camres(geom,"CamRes","Time Resolution;Time Resolution [ns];channels");
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| 237 | //
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| 238 | // Get the area calibration pix from the calibration cam
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| 239 | //
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| 240 | for (Int_t j=0; j<cam->GetSize(); j++)
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| 241 | {
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| 242 | const MCalibrationChargePix &pix = (MCalibrationChargePix&)(*cam)[j];
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| 243 | const MCalibrationRelTimePix &relpix = (MCalibrationRelTimePix&)(*relcam)[j];
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| 244 | //
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| 245 | // Don't use bad pixels
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| 246 | //
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| 247 | if (!pix.IsFFactorMethodValid())
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| 248 | continue;
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| 249 | //
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| 250 | //
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| 251 | if (aidx != geom[j].GetAidx())
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| 252 | continue;
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| 253 |
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| 254 | const Double_t pres = (Double_t)relpix.GetTimePrecision();
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| 255 |
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| 256 | resol += pres;
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| 257 | resol2 += pres;
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| 258 | num++;
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| 259 |
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| 260 | camres.Fill(j,pres);
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| 261 | camres.SetUsed(j);
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| 262 | }
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| 263 |
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| 264 | if (num > 100)
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| 265 | {
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| 266 | resol /= num;
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| 267 | var = (resol2 - resol*resol*num) / (num-1);
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| 268 |
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| 269 | res[cnt] = resol;
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| 270 | if (var > 0.)
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| 271 | reserr[cnt] = TMath::Sqrt(var);
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| 272 | else
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| 273 | reserr[cnt] = 0.;
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| 274 |
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| 275 | //
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| 276 | // Make also a Gauss-fit to the distributions. The RMS can be determined by
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| 277 | // outlier, thus we look at the sigma and the RMS and take the smaller one, afterwards.
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| 278 | //
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| 279 | h = camres.ProjectionS(TArrayI(),TArrayI(1,&aidx),"_py",750);
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| 280 | h->SetDirectory(NULL);
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| 281 | h->Fit("gaus","QL");
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| 282 | TF1 *fit = h->GetFunction("gaus");
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| 283 |
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| 284 | Double_t ci2 = fit->GetChisquare();
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| 285 | Double_t sigma = fit->GetParameter(2);
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| 286 |
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| 287 | if (ci2 > 500. || sigma > reserr[cnt])
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| 288 | {
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| 289 | h->Fit("gaus","QLM");
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| 290 | fit = h->GetFunction("gaus");
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| 291 |
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| 292 | ci2 = fit->GetChisquare();
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| 293 | sigma = fit->GetParameter(2);
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| 294 | }
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| 295 |
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| 296 | const Double_t mean = fit->GetParameter(1);
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| 297 | const Int_t ndf = fit->GetNDF();
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| 298 |
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| 299 | *fLog << inf << "Mean number photo-electrons: " << sig[cnt] << endl;
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| 300 | *fLog << inf << "Time Resolution area idx: " << aidx << " Results: " << endl;
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| 301 | *fLog << inf << "Mean: " << Form("%4.3f",mean)
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| 302 | << "+-" << Form("%4.3f",fit->GetParError(1))
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| 303 | << " Sigma: " << Form("%4.3f",sigma) << "+-" << Form("%4.3f",fit->GetParError(2))
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| 304 | << " Chisquare: " << Form("%4.3f",fit->GetChisquare()) << " NDF : " << ndf << endl;
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| 305 |
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| 306 | delete h;
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| 307 | gROOT->GetListOfFunctions()->Remove(fit);
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| 308 |
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| 309 | if ((sigma < reserr[cnt] || reserr[cnt]<0.001) && ndf > 2)
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| 310 | {
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| 311 | res [cnt] = mean;
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| 312 | reserr[cnt] = sigma;
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| 313 | }
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| 314 | else
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| 315 | *fLog << warn << "Do not take fit results, but Mean and RMS: " << Form("%4.3f",res[cnt]) << "+-" << Form("%4.3f",reserr[cnt]) << endl;
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| 316 |
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| 317 | res[cnt] *= norm;
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| 318 | reserr[cnt] *= norm;
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| 319 | cnt++;
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| 320 | }
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| 321 | }
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| 322 |
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| 323 | TGraphErrors *gr = new TGraphErrors(size,
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| 324 | sig.GetArray(),res.GetArray(),
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| 325 | sigerr.GetArray(),reserr.GetArray());
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| 326 | gr->SetTitle(Form("%s%3i","Area Index ",aidx));
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| 327 | gr->GetXaxis()->SetTitle("<phes> [1]");
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| 328 | gr->GetYaxis()->SetTitle("Time Resolution [ns]");
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| 329 | return gr;
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| 330 | }
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| 331 |
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| 332 | TGraphErrors *MCalibrationIntensityRelTimeCam::GetTimeResVsSqrtPhePerArea( const Int_t aidx,const MCalibrationIntensityChargeCam &chargecam, const MGeomCam &geom, const MCalibrationCam::PulserColor_t col)
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| 333 | {
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| 334 |
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| 335 | const Int_t size = CountNumEntries(col);
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| 336 |
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| 337 | if (size == 0)
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| 338 | return NULL;
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| 339 |
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| 340 | const Int_t asiz = chargecam.CountNumEntries(col);
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| 341 |
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| 342 | if (size != asiz)
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| 343 | {
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| 344 | *fLog << err << GetDescriptor() << ": Size mismatch in colour between MCalibrationIntensityRelTimeCam "
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| 345 | << "and MCalibrationIntensityChargeCam. " << endl;
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| 346 | return NULL;
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| 347 | }
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| 348 |
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| 349 | const Float_t sqrt2 = 1.414;
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| 350 | const Float_t fadc2ns = 3.333;
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| 351 | const Float_t norm = fadc2ns / sqrt2;
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| 352 |
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| 353 | TArrayF res(size);
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| 354 | TArrayF reserr(size);
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| 355 | TArrayF sig(size);
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| 356 | TArrayF sigerr(size);
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| 357 |
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| 358 | Int_t cnt = 0;
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| 359 |
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| 360 | TH1D *h = 0;
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| 361 |
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| 362 | for (Int_t i=0;i<GetSize();i++)
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| 363 | {
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| 364 | //
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| 365 | // Get the calibration cam from the intensity cam
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| 366 | //
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| 367 | MCalibrationRelTimeCam *relcam = (MCalibrationRelTimeCam*)GetCam(i);
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| 368 | MCalibrationChargeCam *cam = (MCalibrationChargeCam*)chargecam.GetCam(i);
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| 369 |
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| 370 | if (relcam->GetPulserColor() != col && col != MCalibrationCam::kNONE)
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| 371 | continue;
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| 372 |
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| 373 | const MCalibrationChargePix &apix = (MCalibrationChargePix&)cam->GetAverageArea(aidx);
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| 374 | const Float_t phe = apix.GetPheFFactorMethod();
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| 375 | const Float_t phesq = phe > 0. ? TMath::Sqrt(phe) : 0.;
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| 376 | const Float_t phesqerr = phe > 0. ? 0.5*apix.GetPheFFactorMethodErr()/phesq : 0.;
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| 377 |
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| 378 | sig[cnt] = phesq;
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| 379 | sigerr[cnt] = phesqerr;
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| 380 |
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| 381 | Double_t resol = 0.;
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| 382 | Double_t resol2 = 0.;
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| 383 | Double_t var = 0.;
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| 384 | Int_t num = 0;
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| 385 |
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| 386 | MHCamera camres(geom,"CamRes","Time Resolution;Time Resolution [ns];channels");
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| 387 | //
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| 388 | // Get the area calibration pix from the calibration cam
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| 389 | //
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| 390 | for (Int_t j=0; j<cam->GetSize(); j++)
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| 391 | {
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| 392 | const MCalibrationChargePix &pix = (MCalibrationChargePix&)(*cam)[j];
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| 393 | const MCalibrationRelTimePix &relpix = (MCalibrationRelTimePix&)(*relcam)[j];
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| 394 | //
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| 395 | // Don't use bad pixels
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| 396 | //
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| 397 | if (!pix.IsFFactorMethodValid())
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| 398 | continue;
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| 399 | //
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| 400 | //
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| 401 | if (aidx != geom[j].GetAidx())
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| 402 | continue;
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| 403 |
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| 404 | const Float_t pres = relpix.GetTimePrecision();
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| 405 |
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| 406 | resol += pres;
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| 407 | resol2 += pres;
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| 408 | num++;
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| 409 |
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| 410 | camres.Fill(j,pres);
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| 411 | camres.SetUsed(j);
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| 412 | }
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| 413 |
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| 414 | if (num > 1)
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| 415 | {
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| 416 | resol /= num;
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| 417 | var = (resol2 - resol*resol*num) / (num-1);
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| 418 |
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| 419 | res[cnt] = resol;
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| 420 | if (var > 0.)
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| 421 | reserr[cnt] = TMath::Sqrt(var);
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| 422 | else
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| 423 | reserr[cnt] = 0.;
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| 424 |
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| 425 | //
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| 426 | // Make also a Gauss-fit to the distributions. The RMS can be determined by
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| 427 | // outlier, thus we look at the sigma and the RMS and take the smaller one, afterwards.
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| 428 | //
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| 429 | h = camres.ProjectionS(TArrayI(),TArrayI(1,&aidx),"_py",750);
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| 430 | h->SetDirectory(NULL);
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| 431 | h->Fit("gaus","QL");
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| 432 | TF1 *fit = h->GetFunction("gaus");
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| 433 |
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| 434 | Float_t ci2 = fit->GetChisquare();
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| 435 | Float_t sigma = fit->GetParameter(2);
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| 436 |
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| 437 | if (ci2 > 500. || sigma > reserr[cnt])
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| 438 | {
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| 439 | h->Fit("gaus","QLM");
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| 440 | fit = h->GetFunction("gaus");
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| 441 |
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| 442 | ci2 = fit->GetChisquare();
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| 443 | sigma = fit->GetParameter(2);
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| 444 | }
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| 445 |
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| 446 | const Float_t mean = fit->GetParameter(1);
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| 447 | const Float_t ndf = fit->GetNDF();
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|---|
| 448 |
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|---|
| 449 |
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|---|
| 450 | *fLog << inf << "Sqrt Mean number photo-electrons: " << sig[cnt] << endl;
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|---|
| 451 | *fLog << inf << "Time Resolution area idx: " << aidx << " Results: " << endl;
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|---|
| 452 | *fLog << inf << "Mean: " << Form("%4.3f",mean)
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|---|
| 453 | << "+-" << Form("%4.3f",fit->GetParError(1))
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|---|
| 454 | << " Sigma: " << Form("%4.3f",sigma) << "+-" << Form("%4.3f",fit->GetParError(2))
|
|---|
| 455 | << " Chisquare: " << Form("%4.3f",fit->GetChisquare()) << " NDF : " << ndf << endl;
|
|---|
| 456 |
|
|---|
| 457 | delete h;
|
|---|
| 458 | gROOT->GetListOfFunctions()->Remove(fit);
|
|---|
| 459 |
|
|---|
| 460 | if (sigma < reserr[cnt] && ndf > 2)
|
|---|
| 461 | {
|
|---|
| 462 | res [cnt] = mean;
|
|---|
| 463 | reserr[cnt] = sigma;
|
|---|
| 464 | }
|
|---|
| 465 |
|
|---|
| 466 | res[cnt] *= norm;
|
|---|
| 467 | reserr[cnt] *= norm;
|
|---|
| 468 | }
|
|---|
| 469 | else
|
|---|
| 470 | {
|
|---|
| 471 | res[cnt] = -1.;
|
|---|
| 472 | reserr[cnt] = 0.;
|
|---|
| 473 | }
|
|---|
| 474 | cnt++;
|
|---|
| 475 | }
|
|---|
| 476 |
|
|---|
| 477 | TGraphErrors *gr = new TGraphErrors(size,
|
|---|
| 478 | sig.GetArray(),res.GetArray(),
|
|---|
| 479 | sigerr.GetArray(),reserr.GetArray());
|
|---|
| 480 | gr->SetTitle(Form("%s%3i","Area Index ",aidx));
|
|---|
| 481 | gr->GetXaxis()->SetTitle("Sqrt(<phes>) [1]");
|
|---|
| 482 | gr->GetYaxis()->SetTitle("Time Resolution [ns]");
|
|---|
| 483 | return gr;
|
|---|
| 484 | }
|
|---|
