// //
///////////////////////////////////////////////////////////////////////////////
+// --- Standard libraries
#include <stdlib.h>
+#include <stdio.h>
// --- ROOT system
#include <TTree.h>
}
}
- if(fIspASystem){
+ /*if(fIspASystem){
fBeamType = "p-A";
AliInfo(" AliZDCDigitizer -> Manually setting beam type to p-A\n");
- }
+ }*/
// Setting beam type for spectator generator and RELDIS generator
if(((fBeamType.CompareTo("UNKNOWN")) == 0) || fIsRELDISgen){
}
printf("\t AliZDCDigitizer -> beam type %s - beam energy = %f GeV\n", fBeamType.Data(), fBeamEnergy);
- CalculatePMTGains();
-
+ if(fBeamEnergy>0.1){
+ ReadPMTGains();
+ //CalculatePMTGains();
+ }
+ else{
+ AliWarning("\n Beam energy is 0 -> ZDC PMT gains can't be set -> NO ZDC DIGITS!!!\n");
+ }
+
// ADC Caen V965
fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
// ### Out of time ADC added (22 channels)
// --- same codification as for signal PTMs (see above)
// ------------------------------------------------------------
- Float_t pmoot[5][5];
- for(Int_t iSector1=0; iSector1<5; iSector1++)
- for(Int_t iSector2=0; iSector2<5; iSector2++){
- pmoot[iSector1][iSector2] = 0;
- }
+ // Float_t pmoot[5][5];
+ // for(Int_t iSector1=0; iSector1<5; iSector1++)
+ // for(Int_t iSector2=0; iSector2<5; iSector2++){
+ // pmoot[iSector1][iSector2] = 0;
+ // }
// impact parameter and number of spectators
Float_t impPar = 0;
}
+//_____________________________________________________________________________
+void AliZDCDigitizer::ReadPMTGains()
+{
+// Read PMT gain from an external file
+
+ char *fname = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/PMTGainsdata.txt");
+ FILE *fdata = fopen(fname,"r");
+ if(fdata==NULL){
+ AliWarning(" Can't open file $ALICE_ROOT/ZDC/PMTGainsdata.txt to read ZDC PMT Gains\n");
+ AliWarning(" -> ZDC signal will be pedestal!!!!!!!!!!!!\n\n");
+ return;
+ }
+ int read=1;
+ Float_t data[5];
+ Int_t beam[12], det[12];
+ Float_t gain[12], aEne[12], bEne[12];
+ for(int ir=0; ir<12; ir++){
+ for(int ic=0; ic<5; ic++){
+ read = fscanf(fdata,"%f ",&data[ic]);
+ if(read==0) AliDebug(3, " Error in reading PMT gains from external file ");
+ }
+ beam[ir] = data[0];
+ det[ir] = data[1];
+ gain[ir] = data[2];
+ aEne[ir] = data[3];
+ bEne[ir] = data[4];
+ }
+ fclose(fdata);
+
+ if(((fBeamType.CompareTo("P-P")) == 0)){
+ for(int i=0; i<12; i++){
+ if(beam[i]==0 && fBeamEnergy!=0.){
+ if(det[i]!=31 && det[i]!=32){
+ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]);
+ }
+ else if(det[i] == 31) fPMGain[2][1] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]);
+ else if(det[i] == 32) fPMGain[2][2] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]);
+ }
+ }
+ //
+ AliInfo(Form("\n ZDC PMT gains for p-p @ %1.0f+%1.0f GeV: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
+ fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]));
+ }
+ else if(((fBeamType.CompareTo("A-A")) == 0)){
+ for(int i=0; i<12; i++){
+ if(beam[i]==1){
+ Float_t scalGainFactor = fBeamEnergy/2760.;
+ if(det[i]!=31 && det[i]!=32){
+ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]/(aEne[i]*scalGainFactor);
+ }
+ else{
+ for(int iq=1; iq<3; iq++) fPMGain[2][iq] = gain[i]/(aEne[i]*scalGainFactor);
+ }
+ }
+ }
+ //
+ AliInfo(Form("\n ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
+ fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
+ }
+ else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A")) == 0)){
+ for(int i=0; i<12; i++){
+ if(beam[i]==0 && fBeamEnergy!=0.){
+ if(det[i]==1 || det[i]==2){
+ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]);
+ }
+ }
+ if(beam[i]==1){
+ Float_t scalGainFactor = fBeamEnergy/2760.;
+ Float_t npartScalingFactor = 208./15.;
+ if(det[i]==4 || det[i]==5){
+ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor);
+ }
+ else if(det[i]==31 || det[i]==32){
+ for(int iq=1; iq<3; iq++) fPMGain[2][iq] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor);
+ }
+ }
+ }
+ AliInfo(Form("\n ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
+ fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]));
+ }
+}
+
//_____________________________________________________________________________
void AliZDCDigitizer::CalculatePMTGains()
{
// Calculate PMT gain according to beam type and beam energy
- if(((fBeamType.CompareTo("P-P")) == 0)){
+ if( ((fBeamType.CompareTo("P-P")) == 0) || ((fBeamType.CompareTo("p-p"))) ){
// PTM gains rescaled to beam energy for p-p
// New correction coefficients for PMT gains needed
// to reproduce experimental spectra (from Grazia Jul 2010)
AliInfo(Form("\n ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
}
- else if(((fBeamType.CompareTo("p-A")) == 0)){
+ else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A"))) ){
// PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A
// PTM gains rescaled to beam energy for p-p on side C
// WARNING! Energies are set by hand for 2011 pA RUN!!!
Float_t scalGainFactor = fBeamEnergy/2760.;
+ Float_t npartScalingFactor = 208./15.;
for(Int_t j = 0; j < 5; j++){
fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; //ZNC (p)
fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; //ZPC (p)
- fPMGain[2][j] = 100000./scalGainFactor; // ZEM (Pb)
+ fPMGain[2][j] = npartScalingFactor*100000./scalGainFactor; // ZEM (Pb)
// Npart max scales from 400 in Pb-Pb to ~8 in pPb -> *40.
- fPMGain[3][j] = 40*50000./(4*scalGainFactor); // ZNA (Pb)
- fPMGain[4][j] = 40*100000./(5*scalGainFactor); // ZPA (Pb)
+ fPMGain[3][j] = npartScalingFactor*50000/(4*scalGainFactor); // ZNA (Pb)
+ fPMGain[4][j] = npartScalingFactor*100000/(5*scalGainFactor); // ZPA (Pb)
}
AliInfo(Form("\n ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]));
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff