START/AliSTARTParameters.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id:  */
  17
  18 //____________________________________________________________________
  19 //
  20 // START - T0.
  21 //
  22 // This class is a singleton that handles various parameters of
  23 // the START detectors.
  24 // Eventually, this class will use the Conditions DB to get the
  25 // various parameters, which code can then request from here.
  26 //
  27 #include "AliLog.h"
  28 #include "AliSTARTParameters.h"
  29 #include "AliSTARTCalibData.h"
  30 #include "AliSTARTAlignData.h"
  31 #include <AliCDBManager.h>
  32 #include <AliCDBEntry.h>
  33 #include <AliCDBStorage.h>
  34 #include <Riostream.h>
  35
  36 AliSTARTAlignData* AliSTARTParameters::fgAlignData = 0;
  37 AliSTARTCalibData* AliSTARTParameters::fgCalibData = 0;
  38 //====================================================================
  39 ClassImp(AliSTARTParameters)
  40 #if 0
  41   ; // This is here to keep Emacs for indenting the next line
  42 #endif
  43
  44 //____________________________________________________________________
  45 AliSTARTParameters* AliSTARTParameters::fgInstance = 0;
  46 //____________________________________________________________________
  47 AliSTARTParameters*
  48 AliSTARTParameters::Instance()
  49 {
  50   // Get static instance
  51   if (!fgInstance) fgInstance = new AliSTARTParameters;
  52   return fgInstance;
  53 }
  54
  55 //____________________________________________________________________
  56 AliSTARTParameters::AliSTARTParameters()
  57   : fIsInit(kFALSE)
  58 {
  59   // Default constructor
  60   for (Int_t ipmt=0; ipmt<24; ipmt++)
  61     {
  62       SetTimeDelayCablesCFD(ipmt);
  63       SetTimeDelayCablesLED(ipmt);
  64       SetTimeDelayElectronicCFD(ipmt);
  65       SetTimeDelayElectronicLED(ipmt);
  66       SetTimeDelayPMT(ipmt);
  67       SetVariableDelayLine(ipmt);
  68       SetSlewingLED(ipmt);
  69       SetPh2Mip();
  70       SetChannelWidth();
  71       SetmV2channel();
  72       SetGain();
  73       SetQTmin();
  74       SetQTmax();
  75       SetPMTeff(ipmt);
  76    }
  77   SetZposition();
  78
  79 }
  80
  81 //__________________________________________________________________
  82 void
  83 AliSTARTParameters::Init()
  84 {
  85   // Initialize the parameters manager.  We need to get stuff from the
  86   // CDB here.
  87   //  if (fIsInit) return;
  88
  89   AliCDBManager* cdb      = AliCDBManager::Instance();
  90   cout<<" AliSTARTParameters::Init() CDB "<<cdb<<endl;
  91   AliCDBStorage *stor = cdb->GetStorage("local://$ALICE_ROOT");
  92   fCalibentry  = stor->Get("START/Calib/Gain_TimeDelay_Slewing_Walk",1);
  93   if (fCalibentry){
  94    fgCalibData  = (AliSTARTCalibData*)fCalibentry->GetObject();
  95    cout<<" got calibdata "<<endl;
  96   }
  97    fAlignentry     = stor-> Get("START/Align/Positions",1);
  98   if (fAlignentry){
  99    fgAlignData  = (AliSTARTAlignData*) fAlignentry->GetObject();
 100    cout<<" got align data "<<endl;
 101   }
 102   cout<<" in INT :: calib "<<fCalibentry<<" align "<<fAlignentry<<endl;
 103
 104   fIsInit = kTRUE;
 105 }
 106
 107
 108 //__________________________________________________________________
 109 Float_t
 110 AliSTARTParameters::GetGain(Int_t ipmt) const
 111 {
 112   // Returns the calibrated gain for each PMT
 113   //
 114
 115   if (!fCalibentry)
 116     return fFixedGain;
 117
 118   return fgCalibData->GetGain(ipmt);
 119 }
 120
 121 //__________________________________________________________________
 122 Float_t
 123 AliSTARTParameters::GetTimeDelayLED(Int_t ipmt)
 124 {
 125   // return time delay for LED channel
 126   //
 127   if (!fCalibentry) {
 128     fTimeDelayLED = fTimeDelayCablesLED[ipmt] + fTimeDelayElectronicLED[ipmt] + fTimeDelayPMT[ipmt];
 129     return  fTimeDelayLED;
 130   }
 131   return fgCalibData ->GetTimeDelayLED(ipmt);
 132 }
 133 //__________________________________________________________________
 134 Float_t
 135 AliSTARTParameters::GetTimeDelayCFD(Int_t ipmt)
 136 {
 137   // return time delay for CFD channel
 138    //
 139   if (!fCalibentry)
 140     {
 141       fTimeDelayCFD = fTimeDelayCablesCFD[ipmt] + fTimeDelayElectronicCFD[ipmt] + fTimeDelayPMT[ipmt] + fVariableDelayLine[ipmt];
 142       return fTimeDelayCFD;
 143     }
 144
 145   return fgCalibData->GetTimeDelayCFD(ipmt);
 146 }
 147
 148 //__________________________________________________________________
 149
 150 void
 151 AliSTARTParameters::SetSlewingLED(Int_t ipmt)
 152 {
 153   //  Set Slweing Correction for LED channel
 154
 155   Float_t mv[23] = {25, 30,40,60, 80,100,150,200,250,300,400,500,600,800,1000,1500, 2000, 3000, 4000, 5500, 6000, 7000,8000};
 156   Float_t y[23] = {5044, 4719, 3835, 3224, 2847, 2691,2327,  1937, 1781, 1560, 1456 ,1339, 1163.5, 1027, 819, 650, 520, 370.5, 234, 156, 78, 0};
 157
 158   TGraph* gr = new TGraph(23,mv,y);
 159   fSlewingLED.AddAtAndExpand(gr,ipmt);
 160  }
 161 //__________________________________________________________________
 162 void
 163 AliSTARTParameters::SetPMTeff(Int_t ipmt)
 164 {
 165   Float_t lambda[50];
 166   Float_t eff[50 ] = {0,        0,       0.23619,  0.202909, 0.177913,
 167                     0.175667, 0.17856, 0.190769, 0.206667, 0.230286,
 168                     0.252276, 0.256267,0.26,     0.27125,  0.281818,
 169                     0.288118, 0.294057,0.296222, 0.301622, 0.290421,
 170                     0.276615, 0.2666,  0.248,    0.23619,  0.227814,
 171                     0.219818, 0.206667,0.194087, 0.184681, 0.167917,
 172                     0.154367, 0.1364,  0.109412, 0.0834615,0.0725283,
 173                     0.0642963,0.05861, 0.0465,   0.0413333,0.032069,
 174                     0.0252203,0.02066, 0.016262, 0.012,    0.00590476,
 175                     0.003875, 0.00190, 0,        0,        0          } ;
 176   for (Int_t i=0; i<50; i++) lambda[i]=200+10*i;
 177
 178   TGraph* gr = new TGraph(50,lambda,eff);
 179   fPMTeff.AddAtAndExpand(gr,ipmt);
 180 }