// **************************************************************************
-#include "AliRICHv1.h"
+#include "AliRICHv1.h" //class header
#include "AliRICHParam.h"
-#include "AliRICHChamber.h"
-#include <TParticle.h>
+#include <TParticle.h> //Hits2SDigits()
#include <TRandom.h>
-#include <TVirtualMC.h>
-#include <TPDGCode.h>
-
+#include <TVirtualMC.h> //StepManager() for gMC
+#include <TPDGCode.h> //StepHistory()
+#include <AliStack.h> //StepManager(),Hits2SDigits()
+#include <AliLoader.h> //Hits2SDigits()
+#include <AliRunLoader.h> //Hits2SDigits()
#include <AliConst.h>
#include <AliPDG.h>
-#include <AliRun.h>
-#include <AliMC.h>
-
+#include <AliMC.h> //StepManager()
+#include <AliRawDataHeader.h> //Digits2Raw()
+#include <AliDAQ.h> //Digits2Raw()
+#include <AliRun.h> //CreateMaterials()
+#include <AliMagF.h> //CreateMaterials()
+#include <TGeoManager.h> //CreateGeometry()
+#include <TMultiGraph.h> //Optics()
+#include <TGraph.h> //Optics()
+#include <TLegend.h> //Optics()
+#include <TCanvas.h> //Optics()
+#include <TF2.h> //CreateMaterials()
+#include <AliCDBManager.h> //CreateMaterials()
+#include <AliCDBEntry.h> //CreateMaterials()
+
ClassImp(AliRICHv1)
-//__________________________________________________________________________________________________
-void AliRICHv1::StepManager()
+
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::CreateMaterials()
{
-// Full Step Manager.
-// 3- Ckovs absorbed on Collection electrods
-// 5- Ckovs absorbed on Cathode wires
-// 6- Ckovs absorbed on Anod wires
-
- Int_t copy;
- static Int_t iCurrentChamber;
-//history of Cerenkovs
- if(gMC->TrackPid()==kCerenkov){
- if( gMC->IsNewTrack() && gMC->CurrentVolID(copy)==gMC->VolId("RRAD")) fCounters(0)++;// 0- Ckovs produced in radiator
- if(!gMC->IsTrackAlive() && gMC->CurrentVolID(copy)==gMC->VolId("RRAD")) fCounters(1)++;// 1- Ckovs absorbed in radiator
- if(!gMC->IsTrackAlive() && gMC->CurrentVolID(copy)==gMC->VolId("RRWI")) fCounters(2)++;// 2- Ckovs absorbed in radiator window
- if(!gMC->IsTrackAlive() && gMC->CurrentVolID(copy)==gMC->VolId("RICH")) fCounters(4)++;// 4- Ckovs absorbed in CH4
+// Definition of available RICH materials
+// Arguments: none
+// Returns: none
+ AliDebug(1,"Start v1 RICH.");
+
+ const Int_t kNbins=30; //number of photon energy points
+
+ Float_t aAbsC6F14[kNbins]={//New values from A.DiMauro 28.10.03 total 30
+ 32701.4219, 17996.1141, 10039.7281, 1799.1230, 1799.1231, 1799.1231, 1241.4091, 179.0987, 179.0986, 179.0987,
+ 179.0987, 118.9800, 39.5058, 23.7244, 11.1283, 7.1573, 3.6249, 2.1236, 0.7362, 0.5348,
+ 0.3387, 0.3074, 0.3050, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001, 0.0001};
+
+ Float_t aAbsSiO2[kNbins]={//New values from A.DiMauro 28.10.03 total 30
+ 34.4338, 30.5424, 30.2584, 31.4928, 31.7868, 17.8397, 9.3410, 6.4492, 6.1128, 5.8128,
+ 5.5589, 5.2877, 5.0162, 4.7999, 4.5734, 4.2135, 3.7471, 2.6033, 1.5223, 0.9658,
+ 0.4242, 0.2500, 0.1426, 0.0863, 0.0793, 0.0724, 0.0655, 0.0587, 0.0001, 0.0001};
+
+ Float_t aQeCsI[kNbins] = {//New values from A.DiMauro 28.10.03 total 31 the last one cut to provide 30
+ 0.0002, 0.0006, 0.0007, 0.0010, 0.0049, 0.0073, 0.0104, 0.0519, 0.0936, 0.1299,
+ 0.1560, 0.1768, 0.1872, 0.1976, 0.2142, 0.2288, 0.2434, 0.2599, 0.2673, 0.2808,
+ 0.2859, 0.2954, 0.3016, 0.3120, 0.3172, 0.3224, 0.3266, 0.3328, 0.3359, 0.3390}; //0.3431};
+
+ Float_t aQeCsIold[kNbins]={//previous values 26 in total added 0.0001 to the 30
+ 0.0002, 0.0006, 0.0007, 0.0050, 0.0075, 0.0101, 0.0243, 0.0405, 0.0689, 0.1053,
+ 0.1215, 0.1417, 0.1579, 0.1620, 0.1661, 0.1677, 0.1743, 0.1768, 0.1793, 0.1826,
+ 0.1859, 0.1876, 0.1892, 0.1909, 0.2075, 0.2158, 0.0001, 0.0001, 0.0001, 0.0001 };
+
+// radiator window gas metal
+ Float_t aIdxC6F14[kNbins] , aIdxSiO2[kNbins] , aIdxCH4[kNbins] , aIdx0[kNbins] , aIdx1[kNbins] ;
+ Float_t aAbsCH4[kNbins] , aAbsMet[kNbins] ;
+ Float_t aQe1[kNbins] ; //QE for all but PC
+ Float_t aEckov[kNbins]; //Ckov energy in GeV
+
+
+ Double_t eCkovMin=5.5e-9,eCkovMax=8.5e-9; //in GeV
+ TF2 idxC6F14("RidxC4F14","sqrt(1+0.554*(1239.84e-9/x)^2/((1239.84e-9/x)^2-5796)-0.0005*(y-20))" ,eCkovMin,eCkovMax,0,50); //DiMauro mail temp 0-50 degrees C
+ TF1 idxSiO2( "RidxSiO2" ,"sqrt(1+46.411/(10.666*10.666-x*x*1e18)+228.71/(18.125*18.125-x*x*1e18))",eCkovMin,eCkovMax); //TDR p.35
+
+
+ for(Int_t i=0;i<kNbins;i++){
+ aEckov [i] =eCkovMin+0.1e-9*i;//Ckov energy in GeV
+
+ aIdxC6F14 [i] =idxC6F14.Eval(aEckov[i],20); //Simulation for 20 degress C
+ aIdxSiO2 [i] =idxSiO2 .Eval(aEckov[i]);
+ aIdxCH4 [i] =AliRICHParam::IdxCH4 (aEckov[i]); aAbsCH4 [i] =AliRICHParam::AbsCH4 (aEckov[i]);
+ aAbsMet [i] =0.0001; //metal has absorption probability
+ aIdx0 [i] =0; //metal ref idx must be 0 in order to reflect photon
+ aIdx1 [i] =1; //metal ref idx must be 1 in order to apply photon to QE conversion
+ aQe1 [i] =1; //QE for all other materials except for PC must be 1.
}
-
-//Treat photons
- static TLorentzVector cerX4;
- if((gMC->TrackPid()==kCerenkov||gMC->TrackPid()==kFeedback)&&gMC->CurrentVolID(copy)==gMC->VolId("RPC ")){//photon in PC
- if(gMC->Edep()>0){//photon in PC +DE
- if(IsLostByFresnel()){
- if(gMC->TrackPid()==kCerenkov) fCounters(7)++;// 7- Ckovs reflected from CsI
- gMC->StopTrack();
- return;
- }
- gMC->TrackPosition(cerX4); gMC->CurrentVolOffID(2,iCurrentChamber);//RICH-RPPF-RPC
-
- AddHit(iCurrentChamber,gAlice->GetMCApp()->GetCurrentTrackNumber(),cerX4.Vect(),cerX4.Vect());//HIT for PHOTON in conditions CF+CSI+DE
- fCounters(8)++;//4- Ckovs converted to electron on CsI
- GenerateFeedbacks(iCurrentChamber);
- }//photon in PC and DE >0
- }//photon in PC
-//Treat charged particles
- static Float_t eloss;
- static TLorentzVector mipInX4,mipOutX4;
- if(gMC->TrackCharge() && gMC->CurrentVolID(copy)==gMC->VolId("RGAP")){//MIP in GAP
- gMC->CurrentVolOffID(1,iCurrentChamber);//RICH-RGAP
- if(gMC->IsTrackEntering()||gMC->IsNewTrack()) {//MIP in GAP entering or newly created
- eloss=0;
- gMC->TrackPosition(mipInX4);
- }else if(gMC->IsTrackExiting()||gMC->IsTrackStop()||gMC->IsTrackDisappeared()){//MIP in GAP exiting or disappeared
- eloss+=gMC->Edep();//take into account last step dEdX
- gMC->TrackPosition(mipOutX4);
- AddHit(iCurrentChamber,gAlice->GetMCApp()->GetCurrentTrackNumber(),mipInX4.Vect(),mipOutX4.Vect(),eloss);//HIT for MIP: MIP in GAP Exiting
- GenerateFeedbacks(iCurrentChamber,eloss);//MIP+GAP+Exit
- }else//MIP in GAP going inside
- eloss += gMC->Edep();
- }//MIP in GAP
-}//StepManager()
-//__________________________________________________________________________________________________
+//data from PDG booklet 2002 density [gr/cm^3] rad len [cm] abs len [cm]
+ Float_t aAir[4]={12,14,16,36} , zAir[4]={6,7,8,18} , wAir[4]={0.000124,0.755267,0.231781,0.012827} , dAir=0.00120479; Int_t nAir=4;//mixture 0.9999999
+ Float_t aC6F14[2]={ 12.01 , 18.99} , zC6F14[2]={ 6 , 9} , wC6F14[2]={6 , 14} , dC6F14=1.68 ; Int_t nC6F14=-2;
+ Float_t aSiO2[2]={ 28.09 , 15.99} , zSiO2[2]={14 , 8} , wSiO2[2]={1 , 2} , dSiO2=2.64 ; Int_t nSiO2=-2;
+ Float_t aCH4[2]={ 12.01 , 1.01} , zCH4[2]={ 6 , 1} , wCH4[2]={1 , 4} , dCH4=7.17e-4 ; Int_t nCH4=-2;
+ Float_t aCsI[2]={132.90 ,126.90} , zCsI[2]={55 ,53} , wCsI[2]={1 , 1} , dCsI=0.1 ; Int_t nCsI=-2;
+ Float_t aRoha= 12.01 , zRoha= 6 , dRoha= 0.10 , radRoha= 18.80 , absRoha= 86.3/dRoha; //special material- quazi carbon
+ Float_t aCu= 63.55 , zCu= 29 , dCu= 8.96 , radCu= 1.43 , absCu= 134.9/dCu ;
+ Float_t aW=183.84 , zW= 74 , dW= 19.30 , radW= 0.35 , absW= 185.0/dW ;
+ Float_t aAl= 26.98 , zAl= 13 , dAl= 2.70 , radAl= 8.90 , absAl= 106.4/dAl ;
+
+ Int_t matId=0; //tmp material id number
+ Int_t unsens = 0, sens=1; //sensitive or unsensitive medium
+ Int_t itgfld = gAlice->Field()->Integ(); //type of field intergration 0 no field -1 user in guswim 1 Runge Kutta 2 helix 3 const field along z
+ Float_t maxfld = gAlice->Field()->Max(); //max field value
+ Float_t tmaxfd = -10.0; //max deflection angle due to magnetic field in one step
+ Float_t deemax = - 0.2; //max fractional energy loss in one step
+ Float_t stemax = - 0.1; //mas step allowed [cm]
+ Float_t epsil = 0.001; //abs tracking precision [cm]
+ Float_t stmin = - 0.001; //min step size [cm] in continius process transport, negative value: choose it automatically
+ AliMixture(++matId,"Air" ,aAir ,zAir ,dAir ,nAir ,wAir ); AliMedium(kAir ,"Air" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMixture(++matId,"C6F14",aC6F14,zC6F14,dC6F14,nC6F14,wC6F14); AliMedium(kC6F14,"C6F14",matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMixture(++matId,"SiO2" ,aSiO2 ,zSiO2 ,dSiO2 ,nSiO2 ,wSiO2 ); AliMedium(kSiO2 ,"SiO2" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMixture(++matId,"CH4" ,aCH4 ,zCH4 ,dCH4 ,nCH4 ,wCH4 ); AliMedium(kCH4 ,"CH4" ,matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMixture(++matId,"CsI" ,aCsI ,zCsI ,dCsI ,nCsI ,wCsI ); AliMedium(kCsI ,"CsI" ,matId, sens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);//sensitive
+
+ AliMaterial(++matId,"Roha",aRoha,zRoha,dRoha,radRoha,absRoha); AliMedium(kRoha,"Roha", matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMaterial(++matId,"Cu" ,aCu ,zCu ,dCu ,radCu ,absCu ); AliMedium(kCu ,"Cu" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMaterial(++matId,"W" ,aW ,zW ,dW ,radW ,absW ); AliMedium(kW ,"W" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+ AliMaterial(++matId,"Al" ,aAl ,zAl ,dAl ,radAl ,absAl ); AliMedium(kAl ,"Al" , matId, unsens, itgfld, maxfld, tmaxfd, stemax, deemax, epsil, stmin);
+
+ gMC->SetCerenkov((*fIdtmed)[kC6F14] , kNbins, aEckov, aAbsC6F14 , aQe1 , aIdxC6F14 );
+ gMC->SetCerenkov((*fIdtmed)[kSiO2] , kNbins, aEckov, aAbsSiO2 , aQe1 , aIdxSiO2 );
+ gMC->SetCerenkov((*fIdtmed)[kCH4] , kNbins, aEckov, aAbsCH4 , aQe1 , aIdxCH4 );
+ gMC->SetCerenkov((*fIdtmed)[kCu] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 );
+ gMC->SetCerenkov((*fIdtmed)[kW] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 ); //n=0 means reflect photons
+ gMC->SetCerenkov((*fIdtmed)[kCsI] , kNbins, aEckov, aAbsMet , aQeCsI, aIdx1 ); //n=1 means convert photons
+ gMC->SetCerenkov((*fIdtmed)[kAl] , kNbins, aEckov, aAbsMet , aQe1 , aIdx0 );
+
+ AliDebug(1,"Stop v1 RICH.");
+ TString ttl=GetTitle();
+ if(!ttl.Contains("ShowOptics")) return; //do not plot optical curves
+ {
+ const Double_t kWidth=0.25,kHeight=0.2;
+ const Int_t kC6F14Marker=24 , kC6F14Color=kRed;
+ const Int_t kCH4Marker =25 , kCH4Color =kGreen;
+ const Int_t kSiO2M =26 , kSiO2Color =kBlue;
+ const Int_t kCsIMarker = 2 , kCsIColor =kMagenta;
+
+//Ref index
+ TGraph *pIdxC6F14=new TGraph(kNbins,aEckov,aIdxC6F14);pIdxC6F14->SetMarkerStyle(kC6F14Marker);pIdxC6F14->SetMarkerColor(kC6F14Color);
+ TGraph *pIdxSiO2 =new TGraph(kNbins,aEckov,aIdxSiO2); pIdxSiO2 ->SetMarkerStyle(kSiO2M) ;pIdxSiO2 ->SetMarkerColor(kSiO2Color);
+ TGraph *pIdxCH4 =new TGraph(kNbins,aEckov,aIdxCH4); pIdxCH4 ->SetMarkerStyle(kCH4Marker) ;pIdxCH4 ->SetMarkerColor(kCH4Color);
+ TMultiGraph *pIdxMG=new TMultiGraph("refidx","Ref index;E_{#check{C}} [GeV]"); TLegend *pIdxLe=new TLegend(0.5,0.21,0.5+kWidth,0.21+kHeight);
+ pIdxMG->Add(pIdxC6F14); pIdxLe->AddEntry(pIdxC6F14,"C6F14" ,"p");
+ pIdxMG->Add(pIdxSiO2) ; pIdxLe->AddEntry(pIdxSiO2 ,"SiO2" ,"p");
+ pIdxMG->Add(pIdxCH4) ; pIdxLe->AddEntry(pIdxCH4 ,"CH4" ,"p");
+//Absorbtion
+ TGraph *pAbsC6F14=new TGraph(kNbins,aEckov,aAbsC6F14);pAbsC6F14->SetMarkerStyle(kC6F14Marker); pAbsC6F14->SetMarkerColor(kC6F14Color);
+ TGraph *pAbsSiO2 =new TGraph(kNbins,aEckov,aAbsSiO2) ;pAbsSiO2 ->SetMarkerStyle(kSiO2M) ; pAbsSiO2 ->SetMarkerColor(kSiO2Color);
+ TGraph *pAbsCH4 =new TGraph(kNbins,aEckov,aAbsCH4) ;pAbsCH4 ->SetMarkerStyle(kCH4Marker) ; pAbsCH4 ->SetMarkerColor(kCH4Color);
+
+ TMultiGraph *pAbsMG=new TMultiGraph("abs","Absorption [cm];E_{#check{C}} [GeV]"); TLegend *pAbsLe=new TLegend(0.2,0.15,0.2+kWidth,0.15+kHeight);
+ pAbsMG->Add(pAbsC6F14); pAbsLe->AddEntry(pAbsC6F14, "C6F14" ,"p");
+ pAbsMG->Add(pAbsSiO2); pAbsLe->AddEntry(pAbsSiO2 , "SiO2" ,"p");
+ pAbsMG->Add(pAbsCH4); pAbsLe->AddEntry(pAbsCH4 , "CH4" ,"p");
+//QE new and old
+ TGraph *pQeCsI =new TGraph(kNbins,aEckov,aQeCsI); pQeCsI ->SetMarkerStyle(kCsIMarker); pQeCsI ->SetMarkerColor(kCsIColor);
+ TGraph *pQeCsIold=new TGraph(kNbins,aEckov,aQeCsIold); pQeCsIold->SetMarkerStyle(kC6F14Marker);pQeCsIold->SetMarkerColor(kC6F14Color);
+ TMultiGraph *pCompMG=new TMultiGraph("qe","QE;E_{#check{C}} [GeV]"); TLegend *pCompLe=new TLegend(0.2,0.6,0.2+kWidth,0.6+kHeight);
+ pCompMG->Add(pQeCsI); pCompLe->AddEntry(pQeCsI, "QE new 30.10.03", "p");
+ pCompMG->Add(pQeCsIold); pCompLe->AddEntry(pQeCsIold, "QE old 01.01.02", "p");
+//transmission
+ Float_t aTrC6F14[kNbins],aTrSiO2[kNbins],aTrCH4[kNbins],aTrTotal[kNbins];
+ for(Int_t i=0;i<kNbins;i++){//calculate probability for photon to survive during transversing a volume of material with absorption length
+ aTrC6F14[i] =TMath::Exp(-AliRICHParam::RadThick() / (aAbsC6F14[i]+0.0001)); //radiator
+ aTrSiO2[i] =TMath::Exp(-AliRICHParam::WinThick() / (aAbsSiO2[i] +0.0001)); //window
+ aTrCH4[i] =TMath::Exp(-AliRICHParam::Pc2Win() / (aAbsCH4[i] +0.0001)); //from window to PC
+ aTrTotal[i] =aTrC6F14[i]*aTrSiO2[i]*aTrCH4[i]*aQeCsI[i];
+ }
+ TGraph *pTrC6F14=new TGraph(kNbins,aEckov,aTrC6F14) ;pTrC6F14->SetMarkerStyle(kC6F14Marker);pTrC6F14->SetMarkerColor(kC6F14Color);
+ TGraph *pTrSiO2 =new TGraph(kNbins,aEckov,aTrSiO2) ;pTrSiO2 ->SetMarkerStyle(kSiO2M) ;pTrSiO2 ->SetMarkerColor(kSiO2Color);
+ TGraph *pTrCH4 =new TGraph(kNbins,aEckov,aTrCH4) ;pTrCH4 ->SetMarkerStyle(kCH4Marker) ;pTrCH4 ->SetMarkerColor(kCH4Color);
+ TGraph *pTrTotal=new TGraph(kNbins,aEckov,aTrTotal) ;pTrTotal->SetMarkerStyle(30) ;pTrTotal->SetMarkerColor(kYellow);
+ TMultiGraph *pTrMG=new TMultiGraph("trans","Transmission;E_{#check{C}} [GeV]"); TLegend *pTrLe=new TLegend(0.2,0.4,0.2+kWidth,0.4+kHeight);
+ pTrMG->Add(pQeCsI); pTrLe->AddEntry(pQeCsI, "CsI QE", "p");
+ pTrMG->Add(pTrC6F14); pTrLe->AddEntry(pTrC6F14, "C6F14" , "p");
+ pTrMG->Add(pTrSiO2); pTrLe->AddEntry(pTrSiO2, "SiO2" , "p");
+ pTrMG->Add(pTrCH4); pTrLe->AddEntry(pTrCH4, "CH4" , "p");
+ pTrMG->Add(pTrTotal); pTrLe->AddEntry(pTrTotal, "total" , "p");
+
+ TCanvas *pC=new TCanvas("c1","RICH optics to check",1100,900); pC->Divide(2,2);
+ pC->cd(1); pIdxMG ->Draw("AP"); pIdxLe ->Draw(); //ref idx
+ pC->cd(2); gPad->SetLogy(); pAbsMG ->Draw("AP"); pAbsLe ->Draw(); //absorption
+ pC->cd(3); pCompMG->Draw("AP"); pCompLe->Draw(); //QE
+ pC->cd(4); pTrMG ->Draw("AP"); pTrLe ->Draw(); //transmission
+ }
+}//void AliRICH::CreateMaterials()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::CreateGeometry()
+{
+//Creates detailed geometry simulation (currently GEANT volumes tree)
+ AliDebug(1,"Start main.");
+ if(!gMC->IsRootGeometrySupported()) return;
+
+ Double_t cm=1,mm=0.1*cm,mkm=0.001*mm,dx,dy,dz;//default is cm
+
+ TGeoVolume *pRich=gGeoManager->MakeBox("RICH",gGeoManager->GetMedium("RICH_CH4"),dx=(6*mm+1681*mm+6*mm)/2, //main RICH volume
+ dy=(6*mm+1466*mm+6*mm)/2,
+ dz=(80*mm+40*mm)*2/2); //x,y taken from 2033P1 z from p84 TDR
+ const Double_t kAngHor=19.5; // horizontal angle between chambers 19.5 grad
+ const Double_t kAngVer=20; // vertical angle between chambers 20 grad
+ const Double_t kAngCom=30; // common RICH rotation with respect to x axis 30 grad
+ const Double_t trans[3]={490,0,0}; //center of the chamber is on window-gap surface
+ for(Int_t iCh=1;iCh<=7;iCh++){//place 7 chambers
+ TGeoHMatrix *pMatrix=new TGeoHMatrix;
+ pMatrix->RotateY(90); //rotate around y since initial position is in XY plane -> now in YZ plane
+ pMatrix->SetTranslation(trans); //now plane in YZ is shifted along x
+ switch(iCh){
+ case 1: pMatrix->RotateY(kAngHor); pMatrix->RotateZ(-kAngVer); break; //right and down
+ case 2: pMatrix->RotateZ(-kAngVer); break; //down
+ case 3: pMatrix->RotateY(kAngHor); break; //right
+ case 4: break; //no rotation
+ case 5: pMatrix->RotateY(-kAngHor); break; //left
+ case 6: pMatrix->RotateZ(kAngVer); break; //up
+ case 7: pMatrix->RotateY(-kAngHor); pMatrix->RotateZ(kAngVer); break; //left and up
+ }
+ pMatrix->RotateZ(kAngCom); //apply common rotation in XY plane
+ gGeoManager->GetVolume("ALIC")->AddNode(pRich,iCh,pMatrix);
+ }
+
+ Float_t par[3];
+ Int_t matrixIdReturn=0; //matrix id returned by AliMatrix
+//Pad Panel frame 6 sectors
+ par[0]=648*mm/2;par[1]= 411*mm/2;par[2]=40 *mm/2;gMC->Gsvolu("Rppf" ,"BOX ",(*fIdtmed)[kAl] ,par,3);//PPF 2001P2 inner size of the slab by 1mm more
+ par[0]=181*mm/2;par[1]=89.25*mm/2;par[2]=38.3*mm/2;gMC->Gsvolu("RppfLarge","BOX ",(*fIdtmed)[kAir] ,par,3);//large whole
+ par[0]=114*mm/2;par[1]=89.25*mm/2;par[2]=38.3*mm/2;gMC->Gsvolu("RppfSmall","BOX ",(*fIdtmed)[kAir] ,par,3);//small whole
+ par[0]=644*mm/2;par[1]= 407*mm/2;par[2]= 1.7*mm/2;gMC->Gsvolu("Rpc" ,"BOX ",(*fIdtmed)[kCsI] ,par,3);//by 0.2 mm more then actual size (PCB 2006P1)
+
+ gMC->Gspos("Rppf",1,"RICH", -335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY");//F1 2040P1 z p.84 TDR
+ gMC->Gspos("Rppf",2,"RICH", +335*mm, -433*mm, 8*cm+20*mm, 0,"ONLY");
+ gMC->Gspos("Rppf",3,"RICH", -335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY");
+ gMC->Gspos("Rppf",4,"RICH", +335*mm, 0*mm, 8*cm+20*mm, 0,"ONLY");
+ gMC->Gspos("Rppf",5,"RICH", -335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY");
+ gMC->Gspos("Rppf",6,"RICH", +335*mm, +433*mm, 8*cm+20*mm, 0,"ONLY");
+ gMC->Gspos("Rpc" ,1,"Rppf", 0*mm, 0*mm, -19.15*mm, 0,"ONLY");//PPF 2001P2
+ gMC->Gspos("RppfLarge",1,"Rppf", -224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",2,"Rppf", -224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",3,"Rppf", -224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",4,"Rppf", -224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",1,"Rppf", - 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",2,"Rppf", - 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",3,"Rppf", - 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",4,"Rppf", - 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",5,"Rppf", + 65.0*mm, -151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",6,"Rppf", + 65.0*mm, - 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",7,"Rppf", + 65.0*mm, + 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfSmall",8,"Rppf", + 65.0*mm, +151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",5,"Rppf", +224.5*mm, -151.875*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",6,"Rppf", +224.5*mm, - 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",7,"Rppf", +224.5*mm, + 50.625*mm, 0.85*mm, 0,"ONLY");
+ gMC->Gspos("RppfLarge",8,"Rppf", +224.5*mm, +151.875*mm, 0.85*mm, 0,"ONLY");
+//Gap - anod wires 6 copies to RICH
+ par[0]=648*mm/2;par[1]= 411*mm/2 ;par[2]=4.45*mm/2;gMC->Gsvolu("Rgap","BOX ",(*fIdtmed)[kCH4] ,par,3);//xy as PPF 2001P2 z WP 2099P1
+ par[0]= 0*mm ;par[1]= 20*mkm/2 ;par[2]= 648*mm/2;gMC->Gsvolu("Rano","TUBE",(*fIdtmed)[kW] ,par,3);//WP 2099P1 z = gap x PPF 2001P2
+ AliMatrix(matrixIdReturn,180,0, 90,90, 90,0); //wires along x
+
+ gMC->Gspos("Rgap",1,"RICH", -335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY"); //F1 2040P1 z WP 2099P1
+ gMC->Gspos("Rgap",2,"RICH", +335*mm, -433*mm,8*cm-2.225*mm, 0,"ONLY");
+ gMC->Gspos("Rgap",3,"RICH", -335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY");
+ gMC->Gspos("Rgap",4,"RICH", +335*mm, 0*mm,8*cm-2.225*mm, 0,"ONLY");
+ gMC->Gspos("Rgap",5,"RICH", -335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY");
+ gMC->Gspos("Rgap",6,"RICH", +335*mm, +433*mm,8*cm-2.225*mm, 0,"ONLY");
+ for(int i=1;i<=96;i++)
+ gMC->Gspos("Rano",i,"Rgap", 0*mm, -411/2*mm+i*4*mm, 0.185*mm, matrixIdReturn,"ONLY"); //WP 2099P1
+//Defines radiators geometry
+ par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 24*mm/2; gMC->Gsvolu("Rrad" ,"BOX ",(*fIdtmed)[kC6F14] ,par,3); // Rad 2011P1
+ par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 4*mm/2; gMC->Gsvolu("RradFront" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //front
+ par[0]=1330*mm/2 ;par[1]= 413*mm/2 ;par[2]= 5*mm/2; gMC->Gsvolu("RradWin" ,"BOX ",(*fIdtmed)[kSiO2] ,par,3); //window
+ par[0]=1330*mm/2 ;par[1]= 5*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradLong" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //long side
+ par[0]= 10*mm/2 ;par[1]= 403*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradShort" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //short side
+ par[0]= 0 ;par[1]= 10*mm/2 ;par[2]= 15*mm/2; gMC->Gsvolu("RradSpacer","TUBE",(*fIdtmed)[kSiO2] ,par,3); //spacer
+
+ gMC->Gspos("Rrad",1,"RICH", 0*mm,-434*mm, -12*mm, 0,"ONLY"); //3 radiators to RICH
+ gMC->Gspos("Rrad",2,"RICH", 0*mm, 0*mm, -12*mm, 0,"ONLY");
+ gMC->Gspos("Rrad",3,"RICH", 0*mm,+434*mm, -12*mm, 0,"ONLY");
+ gMC->Gspos("RradFront",1,"Rrad", 0*mm, 0*mm, -10.0*mm, 0,"ONLY"); //front cover
+ gMC->Gspos("RradWin" ,1,"Rrad", 0*mm, 0*mm, 9.5*mm, 0,"ONLY"); //quartz window (back cover)
+ gMC->Gspos("RradLong" ,1,"Rrad", 0*mm,-204*mm, -0.5*mm, 0,"ONLY"); //long side
+ gMC->Gspos("RradLong" ,2,"Rrad", 0*mm,+204*mm, -0.5*mm, 0,"ONLY"); //long side
+ gMC->Gspos("RradShort",1,"Rrad",-660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side
+ gMC->Gspos("RradShort",2,"Rrad",+660*mm, 0*mm, -0.5*mm, 0,"ONLY"); //short side
+ for(int i=0;i<3;i++)
+ for(int j=0;j<10;j++)
+ gMC->Gspos("RradSpacer",10*i+j,"Rrad",-1330*mm/2+116*mm+j*122*mm,(i-1)*105*mm,-0.5*mm,0,"ONLY");//spacers
+//Defines SandBox geometry
+ par[0]=1419*mm/2 ;par[1]=1378*mm/2;par[2]=50.5*mm/2; gMC->Gsvolu("Rsb" ,"BOX ",(*fIdtmed)[kAir] ,par,3); //2072P1
+ par[0]=1419*mm/2 ;par[1]=1378*mm/2;par[2]= 0.5*mm/2; gMC->Gsvolu("RsbCover","BOX ",(*fIdtmed)[kAl] ,par,3); //cover
+ par[0]=1359*mm/2 ;par[1]=1318*mm/2;par[2]=49.5*mm/2; gMC->Gsvolu("RsbComb" ,"BOX ",(*fIdtmed)[kRoha] ,par,3); //honeycomb structure
+
+ gMC->Gspos("Rsb",1,"RICH", 0*mm, 0*mm, -73.75*mm, 0,"ONLY"); //p.84 TDR sandbox to rich
+ gMC->Gspos("RsbComb" ,1,"Rsb", 0*mm, 0*mm, 0*mm, 0,"ONLY"); //2072P1 honeycomv to sandbox
+ gMC->Gspos("RsbCover",1,"Rsb", 0*mm, 0*mm, +25*mm, 0,"ONLY"); //cover to sandbox
+ gMC->Gspos("RsbCover",2,"Rsb", 0*mm, 0*mm, -25*mm, 0,"ONLY"); //cover to sandbox
+ AliDebug(1,"Stop v1. HMPID option");
+}//CreateGeometry()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::Init()
+{
+// This methode defines ID for sensitive volumes, i.e. such geometry volumes for which there are if(gMC->CurrentVolID()==XXX) statements in StepManager()
+// Arguments: none
+// Returns: none
+ AliDebug(1,"Start v1 HMPID.");
+ fIdRad = gMC->VolId("Rrad");
+ fIdWin = gMC->VolId("RradWin");
+ fIdPc = gMC->VolId("Rpc");
+ fIdAmpGap = gMC->VolId("Rgap");
+ fIdProxGap = gMC->VolId("Rgap");
+ AliDebug(1,"Stop v1 HMPID.");
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Bool_t AliRICHv1::IsLostByFresnel()
{
// Calculate probability for the photon to be lost by Fresnel reflection.
}else
return kFALSE;
}//IsLostByFresnel()
-//__________________________________________________________________________________________________
-void AliRICHv1::GenerateFeedbacks(Int_t iChamber,Float_t eloss)
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::GenFee(Int_t iChamber,Float_t eloss)
{
// Generate FeedBack photons for the current particle. To be invoked from StepManager().
// eloss=0 means photon so only pulse height distribution is to be analysed. This one is done in AliRICHParam::TotQdc()
TLorentzVector x4;
gMC->TrackPosition(x4);
- TVector2 x2=C(iChamber)->Mrs2Pc(x4);//hit position on photocathode plane
+ TVector2 x2=AliRICHParam::Instance()->Mars2Lors(iChamber,x4.Vect(),AliRICHParam::kPc);//hit position on photocathode plane
TVector2 xspe=x2;
- Int_t sector=P()->Loc2Sec(xspe); if(sector==kBad) return; //hit in dead zone, nothing to produce
- Int_t iTotQdc=P()->TotQdc(x2,eloss);
- Int_t iNphotons=gMC->GetRandom()->Poisson(P()->C(iChamber)->AlphaFeedback(sector)*iTotQdc);
+ Int_t sector=AliRICHParam::Loc2Sec(xspe); if(sector==-1) return; //hit in dead zone, nothing to produce
+ Int_t iTotQdc=AliRICHParam::TotQdc(x2,eloss);
+ Int_t iNphotons=gMC->GetRandom()->Poisson(AliRICHParam::AlphaFeedback(iChamber,sector)*iTotQdc);
AliDebug(1,Form("N photons=%i",iNphotons));
Int_t j;
Float_t cthf, phif, enfp = 0, sthf, e1[3], e2[3], e3[3], vmod, uswop,dir[3], phi,pol[3], mom[4];
for(j=0;j<3;j++) pol[j]=e1[j]*TMath::Sin(phi)+e2[j]*TMath::Cos(phi);
gMC->Gdtom(pol, pol, 2);
Int_t outputNtracksStored;
- gAlice->GetMCApp()->PushTrack(1, //do not transport
+ gAlice->GetMCApp()->PushTrack(1, //transport
gAlice->GetMCApp()->GetCurrentTrackNumber(),//parent track
- kFeedback, //PID
- mom[0],mom[1],mom[2],mom[3], //track momentum
- x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
- pol[0],pol[1],pol[2], //polarization
- kPFeedBackPhoton,
- outputNtracksStored,
- 1.0);
+ kFeedback, //PID
+ mom[0],mom[1],mom[2],mom[3], //track momentum
+ x4.X(),x4.Y(),x4.Z(),x4.T(), //track origin
+ pol[0],pol[1],pol[2], //polarization
+ kPFeedBackPhoton, //process ID
+ outputNtracksStored, //on return how many new photons stored on stack
+ 1.0); //weight
}//feedbacks loop
AliDebug(1,"Stop.");
}//GenerateFeedbacks()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::Hits2SDigits()
+{
+// Create a list of sdigits corresponding to list of hits. Every hit generates one or more sdigits.
+ AliDebug(1,"Start.");
+ for(Int_t iEventN=0;iEventN<GetLoader()->GetRunLoader()->GetAliRun()->GetEventsPerRun();iEventN++){//events loop
+ GetLoader()->GetRunLoader()->GetEvent(iEventN);//get next event
+
+ if(!GetLoader()->TreeH()) GetLoader()->LoadHits(); GetLoader()->GetRunLoader()->LoadHeader();
+ if(!GetLoader()->GetRunLoader()->TreeK()) GetLoader()->GetRunLoader()->LoadKinematics();//from
+ if(!GetLoader()->TreeS()) GetLoader()->MakeTree("S"); MakeBranch("S");//to
+
+ for(Int_t iPrimN=0;iPrimN<GetLoader()->TreeH()->GetEntries();iPrimN++){//prims loop
+ GetLoader()->TreeH()->GetEntry(iPrimN);
+ for(Int_t iHitN=0;iHitN<Hits()->GetEntries();iHitN++){//hits loop
+ AliRICHHit *pHit=(AliRICHHit*)Hits()->At(iHitN);//get current hit
+ TVector2 x2 = AliRICHParam::Instance()->Mars2Lors(pHit->C(),0.5*(pHit->InX3()+pHit->OutX3()),AliRICHParam::kAnod);//hit position in the anod plane
+ Int_t iTotQdc=AliRICHParam::TotQdc(x2,pHit->Eloss());//total charge produced by hit, 0 if hit in dead zone
+ if(iTotQdc==0) continue;
+ //
+ //need to quantize the anod....
+ TVector padHit=AliRICHParam::Loc2Pad(x2);
+ TVector2 padHitXY=AliRICHParam::Pad2Loc(padHit);
+ TVector2 anod;
+ if((x2.Y()-padHitXY.Y())>0) anod.Set(x2.X(),padHitXY.Y()+AliRICHParam::AnodPitch()/2);
+ else anod.Set(x2.X(),padHitXY.Y()-AliRICHParam::AnodPitch()/2);
+ //end to quantize anod
+ //
+ TVector area=AliRICHParam::Loc2Area(anod);//determine affected pads, dead zones analysed inside
+ AliDebug(1,Form("hitanod(%6.2f,%6.2f)->area(%3.0f,%3.0f)-(%3.0f,%3.0f) QDC=%4i",anod.X(),anod.Y(),area[0],area[1],area[2],area[3],iTotQdc));
+ TVector pad(2);
+ for(pad[1]=area[1];pad[1]<=area[3];pad[1]++)//affected pads loop
+ for(pad[0]=area[0];pad[0]<=area[2];pad[0]++){
+ Double_t padQdc=iTotQdc*AliRICHParam::FracQdc(anod,pad);
+ AliDebug(1,Form("current pad(%3.0f,%3.0f) with QDC =%6.2f",pad[0],pad[1],padQdc));
+ if(padQdc>0.1) SDigAdd(pHit->C(),pad,padQdc,GetLoader()->GetRunLoader()->Stack()->Particle(pHit->GetTrack())->GetPdgCode(),pHit->GetTrack());
+ }//affected pads loop
+ }//hits loop
+ }//prims loop
+ GetLoader()->TreeS()->Fill();
+ GetLoader()->WriteSDigits("OVERWRITE");
+ SDigReset();
+ }//events loop
+ GetLoader()->UnloadHits(); GetLoader()->GetRunLoader()->UnloadHeader(); GetLoader()->GetRunLoader()->UnloadKinematics();
+ GetLoader()->UnloadSDigits();
+ AliDebug(1,"Stop.");
+}//Hits2SDigits()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::Digits2Raw()
+{
+//Creates raw data files in DDL format. Invoked by AliSimulation
+//loop over events is done outside in AliSimulation
+//Arguments: none
+// Returns: none
+ AliDebug(1,"Start.");
+ GetLoader()->LoadDigits();
+ GetLoader()->TreeD()->GetEntry(0);
+
+ ofstream file[AliRICHDigit::kNddls]; //output streams
+ Int_t cnt[AliRICHDigit::kNddls]; //data words counters for DDLs
+ AliRawDataHeader header; //empty DDL header
+ UInt_t w32=0; //32 bits data word
+
+ for(Int_t i=0;i<AliRICHDigit::kNddls;i++){//open all 14 DDL in parallel
+ file[i].open(AliDAQ::DdlFileName("RICH",i));
+ file[i].write((char*)&header,sizeof(header)); //write dummy header as place holder, actual will be written later when total size of DDL is known
+ cnt[i]=0; //reset counters
+ }
+
+ for(Int_t iCh=0;iCh<fNcham;iCh++){ //digits are stored on chamber by chamber basis
+ TClonesArray *pDigs=(TClonesArray*)fDig->UncheckedAt(iCh);
+ for(Int_t iDig=0;iDig<pDigs->GetEntriesFast();iDig++){//digits loop for a given chamber
+ AliRICHDigit *pDig=(AliRICHDigit*)pDigs->At(iDig);
+ Int_t ddl=pDig->Dig2Raw(w32); //ddl is 0..13
+ file[ddl].write((char*)&w32,sizeof(w32)); cnt[ddl]++;//write formated digit to the propriate file (as decided in Dig2Raw) and increment corresponding counter
+ }//digits loop for a given chamber
+ }//chambers loop
+ for(Int_t i=0;i<AliRICHDigit::kNddls;i++){
+ header.fSize=sizeof(header)+cnt[i]*sizeof(w32); //now calculate total number of bytes for each DDL file
+ header.SetAttribute(0);
+ file[i].seekp(0); file[i].write((char*)&header,sizeof(header));//rewrite DDL header with fSize field properly set
+ file[i].close(); //close DDL file
+ }
+ GetLoader()->UnloadDigits();
+ AliDebug(1,"Stop.");
+}//Digits2Raw()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+Float_t AliRICHv1::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
+{
+// Correction for Fresnel ???????????
+// Arguments: ene - photon energy [GeV],
+// PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
+// Returns:
+ Float_t en[36] = {5.0,5.1,5.2,5.3,5.4,5.5,5.6,5.7,5.8,5.9,6.0,6.1,6.2,
+ 6.3,6.4,6.5,6.6,6.7,6.8,6.9,7.0,7.1,7.2,7.3,7.4,7.5,7.6,7.7,
+ 7.8,7.9,8.0,8.1,8.2,8.3,8.4,8.5};
+ Float_t csin[36] = {2.14,2.21,2.33,2.48,2.76,2.97,2.99,2.59,2.81,3.05,
+ 2.86,2.53,2.55,2.66,2.79,2.96,3.18,3.05,2.84,2.81,2.38,2.11,
+ 2.01,2.13,2.39,2.73,3.08,3.15,2.95,2.73,2.56,2.41,2.12,1.95,
+ 1.72,1.53};
+ Float_t csik[36] = {0.,0.,0.,0.,0.,0.196,0.408,0.208,0.118,0.49,0.784,0.543,
+ 0.424,0.404,0.371,0.514,0.922,1.102,1.139,1.376,1.461,1.253,0.878,
+ 0.69,0.612,0.649,0.824,1.347,1.571,1.678,1.763,1.857,1.824,1.824,
+ 1.714,1.498};
+ Float_t xe=ene;
+ Int_t j=Int_t(xe*10)-49;
+ Float_t cn=csin[j]+((csin[j+1]-csin[j])/0.1)*(xe-en[j]);
+ Float_t ck=csik[j]+((csik[j+1]-csik[j])/0.1)*(xe-en[j]);
+
+ //FORMULAE FROM HANDBOOK OF OPTICS, 33.23 OR
+ //W.R. HUNTER, J.O.S.A. 54 (1964),15 , J.O.S.A. 55(1965),1197
+
+ Float_t sinin=TMath::Sqrt(1-pdoti*pdoti);
+ Float_t tanin=sinin/pdoti;
+
+ Float_t c1=cn*cn-ck*ck-sinin*sinin;
+ Float_t c2=4*cn*cn*ck*ck;
+ Float_t aO=TMath::Sqrt(0.5*(TMath::Sqrt(c1*c1+c2)+c1));
+ Float_t b2=0.5*(TMath::Sqrt(c1*c1+c2)-c1);
+
+ Float_t rs=((aO-pdoti)*(aO-pdoti)+b2)/((aO+pdoti)*(aO+pdoti)+b2);
+ Float_t rp=rs*((aO-sinin*tanin)*(aO-sinin*tanin)+b2)/((aO+sinin*tanin)*(aO+sinin*tanin)+b2);
+
+
+ //CORRECTION FACTOR FOR SURFACE ROUGHNESS
+ //B.J. STAGG APPLIED OPTICS, 30(1991),4113
+
+ Float_t sigraf=18.;
+ Float_t lamb=1240/ene;
+ Float_t fresn;
+
+ Float_t rO=TMath::Exp(-(4*TMath::Pi()*pdoti*sigraf/lamb)*(4*TMath::Pi()*pdoti*sigraf/lamb));
+
+ if(pola)
+ {
+ Float_t pdotr=0.8; //DEGREE OF POLARIZATION : 1->P , -1->S
+ fresn=0.5*(rp*(1+pdotr)+rs*(1-pdotr));
+ }
+ else
+ fresn=0.5*(rp+rs);
+
+ fresn = fresn*rO;
+ return fresn;
+}//Fresnel()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::Print(Option_t *option)const
+{
+// Debug printout
+ TObject::Print(option);
+ Printf("Total number of MIP reached radiator %9i",fCounters(kMipEnterRad));
+ Printf("Total number of Ckov created %9i",fCounters(kCkovNew));
+ Printf("number of Ckov created in radiator %9i",fCounters(kCkovNewRad));
+ Printf("number of Ckov created in window %9i",fCounters(kCkovNewWin));
+ Printf("number of Ckov created in proximity gap %9i",fCounters(kCkovNewProxGap));
+ Printf("number of Ckov created in amplification gap %9i",fCounters(kCkovNewAmpGap));
+ Printf("number of Ckov reached PC %9i",fCounters(kCkovEnterPc));
+ Printf("number of photelectrons %9i",fCounters(kPhotoEle));
+}//void AliRICH::Print(Option_t *option)const
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::StepCount()
+{
+// Count number of ckovs created
+ Int_t copy;
+ if(gMC->TrackCharge() &&gMC->CurrentVolID(copy)==fIdRad &&gMC->IsTrackEntering() ) fCounters(kMipEnterRad)++;
+ if(gMC->TrackPid()==kCerenkov &&gMC->IsNewTrack() ) fCounters(kCkovNew)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdRad &&gMC->IsNewTrack() ) fCounters(kCkovNewRad)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdWin &&gMC->IsNewTrack() ) fCounters(kCkovNewWin)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdProxGap&&gMC->IsNewTrack() ) fCounters(kCkovNewProxGap)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdAmpGap &&gMC->IsNewTrack() ) fCounters(kCkovNewAmpGap)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdPc &&gMC->IsTrackEntering() ) fCounters(kCkovEnterPc)++;
+ if(gMC->TrackPid()==kCerenkov&&gMC->CurrentVolID(copy)==fIdPc &&gMC->IsTrackEntering() &&gMC->Edep()>0) fCounters(kPhotoEle)++;
+}
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::StepHistory()
+{
+// This methode is invoked from StepManager() in order to print out
+ static Int_t iStepN;
+ const char *sParticle;
+ switch(gMC->TrackPid()){
+ case kProton: sParticle="PROTON" ;break;
+ case kNeutron: sParticle="neutron" ;break;
+ case kGamma: sParticle="gamma" ;break;
+ case kCerenkov: sParticle="CKOV" ;break;
+ case kPi0: sParticle="Pi0" ;break;
+ case kPiPlus: sParticle="Pi+" ;break;
+ case kPiMinus: sParticle="Pi-" ;break;
+ case kElectron: sParticle="electron" ;break;
+ default: sParticle="not known" ;break;
+ }
+
+ TString flag="fanny combination";
+ if(gMC->IsTrackAlive())
+ if(gMC->IsTrackEntering()) flag="enters to";
+ else if(gMC->IsTrackExiting()) flag="exits from";
+ else if(gMC->IsTrackInside()) flag="inside";
+ else
+ if(gMC->IsTrackStop()) flag="stoped in";
+
+ Int_t vid=0,copy=0;
+ TString path=gMC->CurrentVolName(); path.Prepend("-");path.Prepend(gMC->CurrentVolOffName(1));//current volume and his mother are always there
+ vid=gMC->CurrentVolOffID(2,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));}
+ vid=gMC->CurrentVolOffID(3,copy); if(vid) {path.Prepend("-");path.Prepend(gMC->VolName(vid));}
+
+ Printf("Step %i: %s (%i) %s %s m=%.6f GeV q=%.1f dEdX=%.4f",iStepN,sParticle,gMC->TrackPid(),flag.Data(),path.Data(),gMC->TrackMass(),gMC->TrackCharge(),gMC->Edep()*1e9);
+
+ Printf("Step %i: tid=%i flags alive=%i disap=%i enter=%i exit=%i inside=%i out=%i stop=%i new=%i",
+ iStepN, gAlice->GetMCApp()->GetCurrentTrackNumber(),
+ gMC->IsTrackAlive(), gMC->IsTrackDisappeared(),gMC->IsTrackEntering(), gMC->IsTrackExiting(),
+ gMC->IsTrackInside(),gMC->IsTrackOut(), gMC->IsTrackStop(), gMC->IsNewTrack());
+
+ Float_t a,z,den,rad,abs; a=z=den=rad=abs=-1;
+ Int_t mid=gMC->CurrentMaterial(a,z,den,rad,abs);
+ Printf("Step %i: id=%i a=%7.2f z=%7.2f den=%9.4f rad=%9.2f abs=%9.2f\n\n",iStepN,mid,a,z,den,rad,abs);
+ iStepN++;
+}//StepHistory()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+void AliRICHv1::StepManager()
+{
+// Full Step Manager.
+// Arguments: none
+// Returns: none
+// StepHistory(); return; //uncomment to print tracks history
+// StepCount(); return; //uncomment to count photons
+
+ Int_t copy; //volume copy aka node
+ static Int_t iCham;
+//Treat photons
+ static TLorentzVector cerX4;
+ if((gMC->TrackPid()==kCerenkov||gMC->TrackPid()==kFeedback)&&gMC->CurrentVolID(copy)==fIdPc){//photon in PC
+ if(gMC->Edep()>0){//photon survided QE test i.e. produces electron
+ if(IsLostByFresnel()){ gMC->StopTrack(); return;} //photon lost due to fersnel reflection
+ gMC->TrackPosition(cerX4); gMC->CurrentVolOffID(2,iCham);//RICH-Rppf-Rpc
+ HitAdd(iCham,gMC->GetStack()->GetCurrentTrackNumber(),gMC->TrackPid(),cerX4.Vect(),cerX4.Vect());//HIT for PHOTON in conditions CF+CSI+DE
+ GenFee(iCham);
+ }//photon in PC and DE >0
+ }//photon in PC
+
+//Treat charged particles
+ static Float_t eloss;
+ static TLorentzVector mipInX4,mipOutX4;
+ if(gMC->TrackCharge() && gMC->CurrentVolID(copy)==fIdAmpGap){//MIP in amplification gap
+ gMC->CurrentVolOffID(1,iCham);//RICH-Rgap
+ if(gMC->IsTrackEntering()||gMC->IsNewTrack()) {//MIP in GAP entering or newly created
+ eloss=0;
+ gMC->TrackPosition(mipInX4);
+ }else if(gMC->IsTrackExiting()||gMC->IsTrackStop()||gMC->IsTrackDisappeared()){//MIP in GAP exiting or disappeared
+ eloss+=gMC->Edep();//take into account last step dEdX
+ gMC->TrackPosition(mipOutX4);
+ HitAdd(iCham,gMC->GetStack()->GetCurrentTrackNumber(),gMC->TrackPid(),mipInX4.Vect(),mipOutX4.Vect(),eloss);//HIT for MIP: MIP in GAP Exiting
+ GenFee(iCham,eloss);//MIP+GAP+Exit
+ }else//MIP in GAP going inside
+ eloss += gMC->Edep();
+ }//MIP in GAP
+}//StepManager()
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff