// * about the suitability of this software for any purpose. It is *
// * provided "as is" without express or implied warranty. *
// **************************************************************************
-#include "AliRICHParam.h" //class header
-#include "AliESD.h"
-#include <TCanvas.h> //TestXXX()
-#include <TLatex.h>
-#include <THStack.h>
-#include <TLegend.h>
-#include <TView.h>
-#include <TPolyMarker3D.h>
-#include <TPolyLine3D.h>
-#include <TPolyLine.h>
-#include <TSystem.h>
-#include <TVector2.h>
-#include <TVector3.h>
+#include "AliRICHParam.h" //class header
+#include "AliRICHDigit.h" //ctor
+#include <TCanvas.h> //TestXXX()
+#include <TLatex.h> //TestTrans()
+#include <TView.h> //TestTrans()
+#include <TPolyMarker3D.h> //TestTrans()
#include <TRotation.h>
-#include <AliCDBManager.h> //CdbRead()
-#include <AliCDBStorage.h> //CdbRead()
-#include <AliCDBEntry.h> //CdbRead()
#include <AliRunLoader.h> //Stack()
#include <AliStack.h> //Stack()
#include <TParticle.h> //Stack()
#include "AliRICHHelix.h" //TestTrans()
ClassImp(AliRICHParam)
-AliRICHParam * AliRICHParam::fgInstance =0x0; //singleton pointer
+
+AliRICHParam* AliRICHParam::fgInstance=0x0; //singleton pointer
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AliRICHParam::AliRICHParam():TNamed("RichParam","default version")
{
// Here all the intitializition is taken place when AliRICHParam::Instance() is invoked for the first time.
// In particulare, matrices to be used for LORS<->MARS trasnformations are initialized from TGeo structure.
// Note that TGeoManager should be already initialized from geometry.root file
- for(Int_t iCh=0;iCh<kNchambers;iCh++) fMatrix[iCh]=(TGeoHMatrix*)gGeoManager->GetVolume("ALIC")->GetNode(Form("RICH_%i",iCh+1))->GetMatrix();
- CdbRead(0,0);
+ fX=0.5*AliRICHDigit::SizeAllX();
+ fY=0.5*AliRICHDigit::SizeAllY();
+ for(Int_t i=0;i<7;i++) fM[i]=(TGeoHMatrix*)gGeoManager->GetVolume("ALIC")->GetNode(Form("RICH_%i",i))->GetMatrix();
fgInstance=this;
}//ctor
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-Float_t AliRICHParam::AbsCH4(Float_t eV)
-{
-// Evaluate the absorbtion lenght of CH4 for a photon of energy eV in electron-volts
- const Float_t kLoschmidt=2.686763e19; // LOSCHMIDT NUMBER IN CM-3
- const Float_t kPressure=750.0; //mm of Hg
- const Float_t kTemperature=283.0; //K (10 grad C)
- const Float_t kPn=kPressure/760.;
- const Float_t kTn=kTemperature/273.16;
- const Float_t kC0=-1.655279e-1;
- const Float_t kC1= 6.307392e-2;
- const Float_t kC2=-8.011441e-3;
- const Float_t kC3= 3.392126e-4;
-
- Float_t crossSection=0;
- if (eV<7.75)
- crossSection=0.06e-22;
- else //------ METHANE CROSS SECTION cm-2 ASTROPH. J. 214, L47 (1978)
- crossSection=(kC0+kC1*eV+kC2*eV*eV+kC3*eV*eV*eV)*1.e-18;
-
- Float_t density=kLoschmidt*kPn/kTn; //CH4 molecular concentration (cm^-3)
- return 1.0/(density*crossSection);
-}//AbsoCH4()
-//__________________________________________________________________________________________________sss
-void AliRICHParam::CdbRead(Int_t run,Int_t version)
-{
-// This methode read all the calibration information and initialise corresponding fields for requested run number
-// Arguments: run - run number for which to retrieve calibration
-// version- version number
-// Returns: none
-
- AliCDBEntry *pEntry=AliCDBManager::Instance()->Get("RICH/RICHConfig/RefIdxC6F14",run,0,version); //try to get from common local storage
- if(pEntry){
- fIdxC6F14=(TF2*)pEntry->GetObject();
- if(!(AliCDBManager::Instance()->GetCacheFlag())) delete pEntry;
- }else{
- AliWarning("No valid calibarion, the hardcoded will be used!");
- fIdxC6F14=new TF2("RidxC4F14","sqrt(1+0.554*(1239.84e-9/x)^2/((1239.84e-9/x)^2-5796)-0.0005*(y-20))",5.5e-9,8.5e-9,0,50); //DiMauro mail
- fIdxC6F14->SetUniqueID(20);//T=20 deg C
- }
-}//CdbRead()
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void AliRICHParam::Print(Option_t* opt) const
{
// print some usefull (hopefully) info on some internal guts of RICH parametrisation
- Printf("Pads in chamber (%3i,%3i) in sector (%2i,%2i) pad size (%4.2f,%4.2f)",NpadsX(),NpadsY(),NpadsXsec(),NpadsYsec(),PadSizeX(),PadSizeY());
- for(Int_t i=0;i<kNchambers;i++) fMatrix[i]->Print(opt);
+ for(Int_t i=0;i<7;i++) fM[i]->Print(opt);
}//Print()
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
-void AliRICHParam::TestSeg()
-{
-// Provides a set of pictures to test segementation currently in use.
-// Arguments: none
-// Returns: none
- new TCanvas("pads","PC segmentation - pads display",700,600);
- gPad->Range(-5,-5,PcSizeX()+5,PcSizeY()+15);
- TVector p(2); TVector2 c; TVector2 b; //current: pad, pad center, pad boundary
-// list of corners:
- Double_t x0=0,x1=SecSizeX(),x2=SecSizeX()+DeadZone() ,x3=PcSizeX();
- Double_t y0=0,y1=SecSizeY(),y2=SecSizeY()+DeadZone(),y3=2*SecSizeY()+DeadZone(),y4=PcSizeY()-SecSizeY(),y5=PcSizeY();
- DrawSectors();
-//header
- TLatex t;
- t.SetTextSize(0.02); t.SetTextColor(kBlack); t.SetTextAlign(11);
- t.DrawLatex(0,PcSizeY()+10,Form("IP in front of this page. pad size %.2fx%.2fcm dead zone %.2fcm",PadSizeX(),PadSizeY(),DeadZone()));
- t.DrawLatex(0,PcSizeY()+ 5,Form("Pc %.2fx%.2f cm %ix%i pads Sec %.2fx%.2f cm %ix%i pads",
- PcSizeX() , PcSizeY() , NpadsX() , NpadsY() ,
- SecSizeX() , SecSizeY() , NpadsXsec() , NpadsYsec() ));
-//sectors
- t.SetTextSize(0.015); t.SetTextColor(kRed); t.SetTextAlign(22);
- c=Pad2Loc( 40, 24); t.DrawText(c.X(),c.Y(),Form("sec 1 (%.2f,%.2f)",c.X(),c.Y() ));
- c=Pad2Loc( 40, 75); t.DrawText(c.X(),c.Y(),Form("sec 3 (%.2f,%.2f)",c.X(),c.Y() ));
- c=Pad2Loc( 40,121); t.DrawText(c.X(),c.Y(),Form("sec 5 (%.2f,%.2f)",c.X(),c.Y() ));
- c=Pad2Loc(120, 24); t.DrawText(c.X(),c.Y(),Form("sec 2 (%.2f,%.2f)",c.X(),c.Y() ));
- c=Pad2Loc(120, 75); t.DrawText(c.X(),c.Y(),Form("sec 4 (%.2f,%.2f)",c.X(),c.Y() ));
- c=Pad2Loc(120,121); t.DrawText(c.X(),c.Y(),Form("sec 6 (%.2f,%.2f)",c.X(),c.Y() ));
-//coners
- t.SetTextSize(0.015); t.SetTextColor(kBlue);
-
- b.Set(x0,y0);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x0,y1);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x0,y2);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x0,y3);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x0,y4);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x0,y5);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
-
- b.Set(x1,y0);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x1,y1);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x1,y2);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x1,y3);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x1,y4);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x1,y5);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
-
- b.Set(x2,y0);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x2,y1);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x2,y2);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x2,y3);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x2,y4);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(11);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x2,y5);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(13);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
-
- b.Set(x3,y0);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x3,y1);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x3,y2);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x3,y3);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x3,y4);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(31);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
- b.Set(x3,y5);p=Loc2Pad(b);c=Pad2Loc(p);t.SetTextAlign(33);t.DrawText(c.X(),c.Y(),Form("(%.2f,%.2f)-(%.0f,%.0f)-(%.2f,%.2f)",b.X(),b.Y(),p(0),p(1),c.X(),c.Y()));
-}//TestSeg()
-//__________________________________________________________________________________________________
-void AliRICHParam::TestResp()
-{
-// Provides a set of plot to check the response parametrisation currently in use.
-// Arguments: none
-// Returns: none
- TCanvas *pC=new TCanvas("c","Amplification test",900,800);
- pC->Divide(1,2);
-
-
- const Int_t kNpoints=8;
- THStack *pStackPhot=new THStack("StackPhot","photons");
- THStack *pStackMip =new THStack("StackMip","mips");
- TLegend *pLeg=new TLegend(0.6,0.2,0.9,0.5,"legend");
- TH1F *apHphot[kNpoints];
- TH1F *apHmip[kNpoints];
-
- Double_t starty=0;
- Double_t deltay=AliRICHParam::SecSizeY()/kNpoints;
-
- for(int i=0;i<kNpoints;i++){
- apHphot[i]=new TH1F(Form("hphot%i",i),"Qdc for Photon;QDC;Counts",500,0,500); apHphot[i]->SetLineColor(i);pStackPhot->Add(apHphot[i]);
- apHmip[i] =new TH1F(Form("hmip%i",i),"Qdc for Mip;QDC;Counts",4000,0,4000); apHmip[i]->SetLineColor(i);pStackMip->Add(apHmip[i]);
-
- pLeg->AddEntry(apHphot[i],Form("@(10,%5.2f->%5.2f)",starty+i*deltay,starty+i*deltay-SecSizeY()/2));
- }
-
-
- TVector2 x2(0,0);
- for(Int_t i=0;i<10000;i++){//events loop
- for(int j=0;j<kNpoints;j++){
- x2.Set(10,starty+j*deltay);
- apHphot[j]->Fill(TotQdc(x2,0));
- apHmip[j]->Fill(TotQdc(x2,gRandom->Landau(600,150)*1e-9));
- }
- }
-
- pC->cd(1); pStackMip->Draw("nostack");
- pC->cd(2); pStackPhot->Draw("nostack"); pLeg->Draw();
-}//TestResp()
-//__________________________________________________________________________________________________
-void AliRICHParam::TestTrans()
-{
-// Tests transformation methods
-// Arguments: none
-// Returns: none
-
- AliRICHParam *pParam=AliRICHParam::Instance();
- Int_t iNpointsX=50,iNpointsY=50;
- new TCanvas("trasform","Test LORS-MARS transform"); TLatex t; t.SetTextSize(0.02);
-
- TView *pView=new TView(1); pView->SetRange(-400,-400,-400,400,400,400);
- DrawAxis();
- for(Int_t iCham=1;iCham<=7;iCham++){//chamber loop
- AliRICHHelix helix(2.5,Norm(iCham).Theta()*TMath::RadToDeg(),Norm(iCham).Phi()*TMath::RadToDeg());
- helix.RichIntersect(AliRICHParam::Instance());
- TPolyMarker3D *pChamber=new TPolyMarker3D(iNpointsX*iNpointsY);
- Int_t i=0;
- for(Double_t x=0;x<PcSizeX();x+=PcSizeX()/iNpointsX)
- for(Double_t y=0;y<PcSizeY();y+=PcSizeY()/iNpointsY){//step loop
- TVector3 v3=pParam->Lors2Mars(iCham,x,y,kPc); TVector2 v2=pParam->Mars2Lors(iCham,v3,kPc);//LORS->MARS->LORS
- Double_t dx=v2.X()-x , dy=v2.Y()-y;
- if(dx>0.000001 || dy>0.000001) Printf("Problem in MARS<->LORS transformations dx=%f dy=%f!!!",dx,dy);
- pChamber->SetPoint(i++,v3.X(),v3.Y(),v3.Z());//Pc plane point in MARS
- }//step loop
- pChamber->SetMarkerSize(1);
- pChamber->SetMarkerColor(iCham);
- pChamber->Draw();
- helix.Draw();
- t.SetNDC();t.SetTextColor(iCham); t.DrawText(0.1,iCham*0.1,Form("Chamber %i",iCham));
- }//chambers loop
-}//TestTrans()
-//__________________________________________________________________________________________________
-void AliRICHParam::DrawAxis()
-{
-// This utility methode draws axis on geometry scene
-// Arguments: none
-// Returns: none
- Double_t x[6]={0,0,0,300,0,0}; Double_t y[6]={0,0,0,0,300,0}; Double_t z[6]={0,0,0,0,0,300};
- TPolyLine3D *pXaxis=new TPolyLine3D(2,x);pXaxis->SetLineColor(kRed); pXaxis->Draw();
- TPolyLine3D *pYaxis=new TPolyLine3D(2,y);pYaxis->SetLineColor(kGreen); pYaxis->Draw();
- TPolyLine3D *pZaxis=new TPolyLine3D(2,z);pZaxis->SetLineColor(kBlue); pZaxis->Draw();
-}
-//__________________________________________________________________________________________________
-void AliRICHParam::DrawSectors()
-{
-// Utility methode draws RICH chamber sectors on event display.
-// Arguments: none
-// Returns: none
- Double_t xLeft[5] = {0,0,SecSizeX(),SecSizeX(),0};
- Double_t xRight[5] = {SecSizeX()+DeadZone(),SecSizeX()+DeadZone(),PcSizeX(),PcSizeX(),SecSizeX()+DeadZone()};
-
- Double_t yDown[5] = {0,SecSizeY(),SecSizeY(),0,0};
- Double_t yCenter[5] = { SecSizeY()+DeadZone(),2*SecSizeY()+DeadZone(),2*SecSizeY()+DeadZone(),
- SecSizeY()+DeadZone(),SecSizeY()+DeadZone()};
- Double_t yUp[5] = {2*SecSizeY()+2*DeadZone(),PcSizeY(),PcSizeY(),2*SecSizeY()+2*DeadZone(),2*SecSizeY()+2*DeadZone()};
-
- TPolyLine *sec1 = new TPolyLine(5,xLeft ,yDown); sec1->SetLineColor(21); sec1->Draw();
- TPolyLine *sec2 = new TPolyLine(5,xRight,yDown); sec2->SetLineColor(21); sec2->Draw();
- TPolyLine *sec3 = new TPolyLine(5,xLeft ,yCenter); sec3->SetLineColor(21); sec3->Draw();
- TPolyLine *sec4 = new TPolyLine(5,xRight,yCenter); sec4->SetLineColor(21); sec4->Draw();
- TPolyLine *sec5 = new TPolyLine(5,xLeft, yUp); sec5->SetLineColor(21); sec5->Draw();
- TPolyLine *sec6 = new TPolyLine(5,xRight,yUp); sec6->SetLineColor(21); sec6->Draw();
-}//DrawSectors()
-//__________________________________________________________________________________________________
-TVector3 AliRICHParam::ForwardTracing(TVector3 entranceTrackPoint, TVector3 vectorTrack, Double_t thetaC, Double_t phiC)
-{
-// Trace a single Ckov photon from a given emission point up to photocathode taking into account ref indexes of materials it travereses
- TVector3 vBad(-999,-999,-999);
- TVector3 nPlane(0,0,1);
- Double_t planeZposition = 0.5*RadThick();
- TVector3 planePoint(0,0,0.5*RadThick()); //this is plane parallel to window which contains emission point
- TVector3 emissionPoint = PlaneIntersect(vectorTrack,entranceTrackPoint,nPlane,planePoint);
- Double_t thetaout,phiout;
- AnglesInDRS(vectorTrack.Theta(),vectorTrack.Phi(),thetaC,phiC,thetaout,phiout);
- TVector3 vectorPhotonInC6F14;
- vectorPhotonInC6F14.SetMagThetaPhi(1,thetaout,phiout);
- planeZposition=RadThick();
- planePoint.SetXYZ(0,0,planeZposition);
- TVector3 entranceToSiO2Point = PlaneIntersect(vectorPhotonInC6F14,emissionPoint,nPlane,planePoint);
-
- Double_t photonEn = EckovMean();
- Double_t angleInSiO2 = SnellAngle(IdxC6F14(EckovMean()),IdxSiO2(EckovMean()),vectorPhotonInC6F14.Theta());if(angleInSiO2<0) return vBad;
- TVector3 vectorPhotonInSiO2;
- vectorPhotonInSiO2.SetMagThetaPhi(1,angleInSiO2,phiout);
-// planeZposition+=AliRICHParam::SiO2Thickness();
- planeZposition+=WinThick();
- planePoint.SetXYZ(0,0,planeZposition);
- TVector3 entranceToCH4 = PlaneIntersect(vectorPhotonInSiO2,entranceToSiO2Point,nPlane,planePoint);
-// entranceToCH4.Dump();
-
- // Double_t angleInCH4 = SnellAngle(AliRICHParam::IndOfRefSiO2(6.755),AliRICHParam::IndOfRefCH4,angleInSiO2);
- Double_t angleInCH4 = SnellAngle(IdxSiO2(photonEn),IdxCH4(photonEn),vectorPhotonInSiO2.Theta());if(angleInCH4<0) return vBad;
- TVector3 vectorPhotonInCH4;
- vectorPhotonInCH4.SetMagThetaPhi(1,angleInCH4,phiout);
-// planeZposition+=AliRICHParam::GapProx();
- planeZposition+=Pc2Win();
- planePoint.SetXYZ(0,0,planeZposition);
- TVector3 impactToPC = PlaneIntersect(vectorPhotonInCH4,entranceToCH4,nPlane,planePoint);
-// impactToPC.Dump();
- return impactToPC;
-}//FowardTracing
-//__________________________________________________________________________________________________
-TVector3 AliRICHParam::PlaneIntersect(const TVector3 &lineDir,const TVector3 &linePoint,const TVector3 &planeNorm,const TVector3 &planePoint)
-{
-// Finds an intersection point between a line and plane.
-// Arguments: lineDir,linePoint - vector along the line and any point of the line
-// planeNorm,planePoint - vector normal to the plane and any point of the plane
-// Returns: point of intersection if any
- if(planeNorm*lineDir==0) return TVector3(-999,-999,-999);
- TVector3 diff=planePoint-linePoint;
- Double_t sint=(planeNorm*diff)/(planeNorm*lineDir);
- return linePoint+sint*lineDir;
-}//PlaneIntersect
-//__________________________________________________________________________________________________
-Double_t AliRICHParam::SnellAngle(Float_t n1, Float_t n2, Float_t theta1)
-{
-// Compute the angle of refraction out of Snell law
-// Arguments: n1 - ref idx of first substance
-// n2 - ref idx of second substance
-// n1 - photon impact angle in the first substance i.e. angle between the photon direction and vector normal to the surface (radians)
-// Returns: photon refraction angle, i.e. angle in the second substance (radians)
- Double_t sinref=(n1/n2)*TMath::Sin(theta1);
- if(sinref>1.) return -999;
- else return TMath::ASin(sinref);
-}//SnellAngle
-//__________________________________________________________________________________________________
-void AliRICHParam::AnglesInDRS(Double_t trackTheta,Double_t trackPhi,Double_t thetaCerenkov,Double_t phiCerenkov,Double_t &tout,Double_t &pout)
-{
-// Setup the rotation matrix of the track...
-
- TRotation mtheta;
- TRotation mphi;
- TRotation minv;
- TRotation mrot;
-
- mtheta.RotateY(trackTheta);
- mphi.RotateZ(trackPhi);
-
- mrot = mphi * mtheta;
- // minv = mrot.Inverse();
-
- TVector3 photonInRadiator(1,1,1);
-
- photonInRadiator.SetTheta(thetaCerenkov);
- photonInRadiator.SetPhi(phiCerenkov);
- photonInRadiator = mrot * photonInRadiator;
- tout=photonInRadiator.Theta();
- pout=photonInRadiator.Phi();
-}//AnglesInDRS
-/*
-void DrawRing()
-{
-
- // Float_t xGraph[1000],yGraph[1000];
-
- Float_t type;
- Float_t MassOfParticle;
- Float_t beta;
- Float_t nfreon;
-
- Float_t ThetaCerenkov;
-
- Float_t Xtoentr = GetEntranceX();
- Float_t Ytoentr = GetEntranceY();
-
- Float_t pmod = GetTrackMomentum();
- Float_t TrackTheta = GetTrackTheta();
- Float_t TrackPhi = GetTrackPhi();
-
- SetPhotonEnergy(AliRICHParam::MeanCkovEnergy());
- SetFreonRefractiveIndex();
-
- SetEmissionPoint(RadiatorWidth/2.);
-
- ThetaCerenkov = GetThetaCerenkov();
- FindBetaFromTheta(ThetaCerenkov);
- nfreon = GetFreonRefractiveIndex();
-
- Int_t nPoints = 100;
-
- Int_t nPointsToDraw = 0;
- for(Int_t i=0;i<nPoints;i++)
- {
- Float_t phpad = 2*TMath::Pi()*i/nPoints;
- SetThetaPhotonInTRS(thetacer);
- SetPhiPhotonInTRS(phpad);
- FindPhotonAnglesInDRS();
- Float_t Radius = FromEmissionToCathode();
- if (Radius == 999.) continue;
- xGraph[nPointsToDraw] = GetXPointOnCathode() + GetShiftX();
- yGraph[nPointsToDraw] = GetYPointOnCathode() + GetShiftY();
- nPointsToDraw++;
- }
- gra = new TGraph(nPointsToDraw,xGraph,yGraph);
- gra->Draw("AC");
-}
-//__________________________________________________________________________________________________
-*/
-void AliRICHParam::TestHit2SDigs(Double_t x,Double_t y,Double_t e,Bool_t isNew)
-{
-//Test hit->sdigits procedures
-//Arguments: isNew - if true use new (abs pad) procedure else use old one (TVector)
-// Returns: none
- TClonesArray *pSDigLst=new TClonesArray("AliRICHDigit");
- Int_t iQtot=-1;
- if(isNew){
- iQtot=Hit2SDigs(10101,e,pSDigLst); //new technique
- }else{
- iQtot=Hit2SDigs(TVector2(x,y),e,pSDigLst);//old technique
- }
- pSDigLst->Print();
- Double_t dQsum=0;
- for(Int_t i=0;i<pSDigLst->GetEntriesFast();i++)
- dQsum+=((AliRICHDigit*)pSDigLst->At(i))->Qdc();
- Printf("Qtot=%i Qsum=%.2f ",iQtot,dQsum);
-}
-//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Int_t AliRICHParam::Stack(Int_t evt,Int_t tid)
{
// Prints some usefull info from stack
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff