-/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/*
- $Log$
- Revision 1.6 2000/10/02 15:44:37 jbarbosa
- Fixed forward declarations.
-
- Revision 1.5 2000/07/13 16:19:45 fca
- Mainly coding conventions + some small bug fixes
-
- Revision 1.4 2000/06/30 16:48:58 dibari
- New function GenerateTresholds() for pedestal simulation.
-
- Revision 1.3 2000/06/12 15:17:58 jbarbosa
- Cleaned up version.
-
- Revision 1.2 2000/05/18 13:45:57 jbarbosa
- Fixed feedback photon origin coordinates
-
- Revision 1.1 2000/04/19 12:57:20 morsch
- Newly structured and updated version (JB, AM)
-
-*/
-
+// **************************************************************************
+// * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+// * *
+// * Author: The ALICE Off-line Project. *
+// * Contributors are mentioned in the code where appropriate. *
+// * *
+// * Permission to use, copy, modify and distribute this software and its *
+// * documentation strictly for non-commercial purposes is hereby granted *
+// * without fee, provided that the above copyright notice appears in all *
+// * copies and that both the copyright notice and this permission notice *
+// * appear in the supporting documentation. The authors make no claims *
+// * about the suitability of this software for any purpose. It is *
+// * provided "as is" without express or implied warranty. *
+// **************************************************************************
#include "AliRICHChamber.h"
-
-#include <TLorentzVector.h>
-#include <TParticle.h>
-#include <TRandom.h>
-#include <TObjArray.h>
+#include "AliRICHParam.h"
+#include "AliSegmentation.h"
+#include "AliRICHSegmentationV0.h"
+#include "AliRICHGeometry.h"
+#include "AliRICHResponse.h"
#include <TRotMatrix.h>
-#include <AliRICHTresholdMap.h>
-#include <AliSegmentation.h>
-#include <AliRICHGeometry.h>
-#include <AliRICHResponse.h>
ClassImp(AliRICHChamber)
-
+//______________________________________________________________________________
AliRICHChamber::AliRICHChamber()
{
-
-//
-// Chamber object constructor
-
+//default ctor
+ fpParam=0;
+ fpRotMatrix=0;
+
fSegmentation = 0;
fResponse = 0;
fGeometry = 0;
- fTresh = 0;
- frMin = 0.1;
- frMax = 140;
- fnsec = 1;
- for(Int_t i=0; i<50; ++i) fIndexMap[i] = 0;
}
-
-AliRICHChamber::AliRICHChamber(const AliRICHChamber& Chamber)
+//______________________________________________________________________________
+AliRICHChamber::AliRICHChamber(Int_t iModuleN,AliRICHParam *pParam)
{
-// Copy Constructor
+//main ctor. Defines all geometry parameters for the given module.
+ SetToZenith();//put to up position
+ switch(iModuleN){
+ case 1:
+ RotateX(-pParam->AngleYZ());
+ RotateZ(-pParam->AngleXY());
+ fName="RICHc1";fTitle="RICH chamber 1";
+ break;
+ case 2:
+ RotateZ(-pParam->AngleXY());
+ fName="RICHc2";fTitle="RICH chamber 2";
+ break;
+ case 3:
+ RotateX(-pParam->AngleYZ());
+ fName="RICHc3";fTitle="RICH chamber 3";
+ break;
+ case 4:
+ fName="RICHc4";fTitle="RICH chamber 4"; //no turns
+ break;
+ case 5:
+ RotateX(pParam->AngleYZ());
+ fName="RICHc5";fTitle="RICH chamber 5";
+ break;
+ case 6:
+ RotateZ(pParam->AngleXY());
+ fName="RICHc6";fTitle="RICH chamber 6";
+ break;
+ case 7:
+ RotateX(pParam->AngleYZ());
+ RotateZ(pParam->AngleXY());
+ fName="RICHc7";fTitle="RICH chamber 7";
+ break;
+ default:
+ Fatal("named ctor","Wrong chamber number %i, check CreateChamber ctor",iModuleN);
+ }//switch(iModuleN)
+ RotateZ(pParam->AngleRot());//apply common rotation
+ fpRotMatrix=new TRotMatrix("rot"+fName,"rot"+fName, Rot().ThetaX()*TMath::RadToDeg(), Rot().PhiX()*TMath::RadToDeg(),
+ Rot().ThetaY()*TMath::RadToDeg(), Rot().PhiY()*TMath::RadToDeg(),
+ Rot().ThetaZ()*TMath::RadToDeg(), Rot().PhiZ()*TMath::RadToDeg());
+ fpParam=pParam;
+ fX=fCenterV3.X();fY=fCenterV3.Y();fZ=fCenterV3.Z();
+
+ fSegmentation = 0; fResponse = 0; fGeometry = 0;
}
+//______________________________________________________________________________
-
-AliRICHResponse* AliRICHChamber::GetResponseModel()
+void AliRICHChamber::LocaltoGlobal(Float_t local[3],Float_t global[3])
{
-//
-// Get reference to response model
- return fResponse;
+//Local coordinates to global coordinates transformation
+
+ Double_t *pMatrix;
+ pMatrix = fpRotMatrix->GetMatrix();
+ global[0]=local[0]*pMatrix[0]+local[1]*pMatrix[3]+local[2]*pMatrix[6];
+ global[1]=local[0]*pMatrix[1]+local[1]*pMatrix[4]+local[2]*pMatrix[7];
+ global[2]=local[0]*pMatrix[2]+local[1]*pMatrix[5]+local[2]*pMatrix[8];
+ global[0]+=fX;
+ global[1]+=fY;
+ global[2]+=fZ;
}
-void AliRICHChamber::ResponseModel(AliRICHResponse* thisResponse)
+void AliRICHChamber::GlobaltoLocal(Float_t global[3],Float_t local[3])
{
-// Configure response model
- fResponse=thisResponse;
-}
-
-void AliRICHChamber::Init(Int_t id)
-{
-// Initialise chambers
- fSegmentation->Init(id);
-}
-
-void AliRICHChamber::LocaltoGlobal(Float_t pos[3],Float_t Globalpos[3])
-{
-
-// Local coordinates to global coordinates transformation
-
- Double_t *fMatrix;
- fMatrix = fChamberMatrix->GetMatrix();
- Globalpos[0]=pos[0]*fMatrix[0]+pos[1]*fMatrix[3]+pos[2]*fMatrix[6];
- Globalpos[1]=pos[0]*fMatrix[1]+pos[1]*fMatrix[4]+pos[2]*fMatrix[7];
- Globalpos[2]=pos[0]*fMatrix[2]+pos[1]*fMatrix[5]+pos[2]*fMatrix[8];
- Globalpos[0]+=fChamberTrans[0];
- Globalpos[1]+=fChamberTrans[1];
- Globalpos[2]+=fChamberTrans[2];
-}
-
-void AliRICHChamber::GlobaltoLocal(Float_t pos[3],Float_t Localpos[3])
-{
-
// Global coordinates to local coordinates transformation
-
- Double_t *fMatrixOrig;
- TMatrix fMatrixCopy(3,3);
- fMatrixOrig = fChamberMatrix->GetMatrix();
+ TMatrix matrixCopy(3,3);
+ Double_t *pMatrixOrig = fpRotMatrix->GetMatrix();
for(Int_t i=0;i<3;i++)
{
for(Int_t j=0;j<3;j++)
- fMatrixCopy(j,i)=fMatrixOrig[j+3*i];
+ matrixCopy(j,i)=pMatrixOrig[j+3*i];
}
- fMatrixCopy.Invert();
- //Int_t elements=fMatrixCopy.GetNoElements();
- //printf("Elements:%d\n",elements);
- //fMatrixOrig= (Double_t*) fMatrixCopy;
- Localpos[0] = pos[0] - fChamberTrans[0];
- Localpos[1] = pos[1] - fChamberTrans[1];
- Localpos[2] = pos[2] - fChamberTrans[2];
- //printf("r1:%f, r2:%f, r3:%f\n",Localpos[0],Localpos[1],Localpos[2]);
- //printf("t1:%f t2:%f t3:%f\n",fChamberTrans[0],fChamberTrans[1],fChamberTrans[2]);
- Localpos[0]=Localpos[0]*fMatrixCopy(0,0)+Localpos[1]*fMatrixCopy(0,1)+Localpos[2]*fMatrixCopy(0,2);
- Localpos[1]=Localpos[0]*fMatrixCopy(1,0)+Localpos[1]*fMatrixCopy(1,1)+Localpos[2]*fMatrixCopy(1,2);
- Localpos[2]=Localpos[0]*fMatrixCopy(2,0)+Localpos[1]*fMatrixCopy(2,1)+Localpos[2]*fMatrixCopy(2,2);
- //Localpos[0]-=fChamberTrans[0];
- //Localpos[1]-=fChamberTrans[1];
- //Localpos[2]-=fChamberTrans[2];
+ matrixCopy.Invert();
+ local[0] = global[0] - fX;
+ local[1] = global[1] - fY;
+ local[2] = global[2] - fZ;
+ local[0]=local[0]*matrixCopy(0,0)+local[1]*matrixCopy(0,1)+local[2]*matrixCopy(0,2);
+ local[1]=local[0]*matrixCopy(1,0)+local[1]*matrixCopy(1,1)+local[2]*matrixCopy(1,2);
+ local[2]=local[0]*matrixCopy(2,0)+local[1]*matrixCopy(2,1)+local[2]*matrixCopy(2,2);
}
-
void AliRICHChamber::DisIntegration(Float_t eloss, Float_t xhit, Float_t yhit,
- Int_t& nnew,Float_t newclust[6][500],ResponseType res)
+ Int_t& iNpads,Float_t cluster[5][500],ResponseType res)
{
-//
-// Generates pad hits (simulated cluster)
-// using the segmentation and the response model
-
- Float_t dx, dy;
- Float_t local[3];
- //Float_t source[3];
- Float_t global[3];
- //
- // Width of the integration area
- //
- dx=(fResponse->SigmaIntegration())*(fResponse->ChargeSpreadX());
- dy=(fResponse->SigmaIntegration())*(fResponse->ChargeSpreadY());
- //
- // Get pulse height from energy loss and generate feedback photons
- Float_t qtot=0;
-
- local[0]=xhit;
- // z-position of the wires relative to the RICH mother volume
- // (2 mmm before CsI) old value: 6.076
- local[1]=1.276 + fGeometry->GetGapThickness()/2 - .2;
- //printf("AliRICHChamber feedback origin:%f",local[1]);
- local[2]=yhit;
-
- LocaltoGlobal(local,global);
+//Generates pad hits (simulated cluster) using the segmentation and the response model
+
+ Float_t local[3],global[3];
+// Width of the integration area
+ Float_t dx=(fResponse->SigmaIntegration())*(fResponse->ChargeSpreadX());
+ Float_t dy=(fResponse->SigmaIntegration())*(fResponse->ChargeSpreadY());
+// Get pulse height from energy loss and generate feedback photons
+ Float_t qtot=0;
+ local[0]=xhit;
+//z-position of the wires relative to the RICH mother volume (2 mm before CsI) old value: 6.076 ???????
+ local[1]=1.276 + fGeometry->GetGapThickness()/2 - .2;
+ local[2]=yhit;
+
+ LocaltoGlobal(local,global);
+
+
+
+//To calculate wire sag, the origin of y-position must be the middle of the photcathode
+ AliRICHSegmentationV0* segmentation = (AliRICHSegmentationV0*) GetSegmentationModel();
+ Float_t newy;
+ if (yhit>0)
+ newy = yhit - segmentation->GetPadPlaneLength()/2;
+ else
+ newy = yhit + segmentation->GetPadPlaneLength()/2;
+
+ if(res==kMip){
+ qtot = fResponse->IntPH(eloss, newy);
+ fResponse->FeedBackPhotons(global,qtot);
+ }else if(res==kPhoton){
+ qtot = fResponse->IntPH(newy);
+ fResponse->FeedBackPhotons(global,qtot);
+ }
- Int_t nFp=0;
-
- if (res==kMip) {
- qtot = fResponse->IntPH(eloss);
- nFp = fResponse->FeedBackPhotons(global,qtot);
- } else if (res==kCerenkov) {
- qtot = fResponse->IntPH();
- nFp = fResponse->FeedBackPhotons(global,qtot);
- }
-
- //printf("Feedbacks:%d\n",nFp);
-
- //
// Loop Over Pads
-
- Float_t qcheck=0, qp=0;
-
- nnew=0;
- for (Int_t i=1; i<=fnsec; i++) {
- qcheck=0;
- for (fSegmentation->FirstPad(xhit, yhit, 0, dx, dy);
- fSegmentation->MorePads();
- fSegmentation->NextPad())
- {
- qp= fResponse->IntXY(fSegmentation);
- qp= TMath::Abs(qp);
-
- //printf("Qp:%f\n",qp);
-
- if (qp > 1.e-4) {
- qcheck+=qp;
- //
- // --- store signal information
- newclust[0][nnew]=qtot;
- newclust[1][nnew]=fSegmentation->Ix();
- newclust[2][nnew]=fSegmentation->Iy();
- newclust[3][nnew]=qp * qtot;
- newclust[4][nnew]=fSegmentation->ISector();
- newclust[5][nnew]=(Float_t) i;
- nnew++;
- //printf("Newcluster:%d\n",i);
- }
- } // Pad loop
- } // Cathode plane loop
- //if (fSegmentation->ISector()==2)
- //printf("Nnew:%d\n\n\n\n",nnew);
-}
-
-
-AliRICHChamber& AliRICHChamber::operator=(const AliRICHChamber& rhs)
-{
-// Assignment operator
- return *this;
-
-}
-
-void AliRICHChamber::GenerateTresholds()
-{
-
-// Generates random treshold charges for all pads
-
- //printf("Pads : %dx%d\n",fSegmentation->Npx(),fSegmentation->Npy());
-
- Int_t nx = fSegmentation->Npx();
- Int_t ny = fSegmentation->Npy();
-
- //Int_t size=nx*ny;
-
- //printf("Size:%d\n",size);
-
- fTresh = new AliRICHTresholdMap(fSegmentation);
-
- //printf("Generating tresholds...\n");
-
- for(Int_t i=-nx/2;i<nx/2;i++)
- {
- for(Int_t j=-ny/2;j<ny/2;j++)
- {
- Int_t pedestal = (Int_t)(gRandom->Gaus(50, 10));
- //Int_t pedestal =0;
- fTresh->SetHit(i,j,pedestal);
- //printf("Pad %d %d has pedestal %d.\n",i,j,pedestal);
- }
+ Float_t qcheck=0, qp=0;
+
+ iNpads=0;
+ for(fSegmentation->FirstPad(xhit, yhit, 0, dx, dy); fSegmentation->MorePads(); fSegmentation->NextPad()) {
+ qp= fResponse->IntXY(fSegmentation);
+ qp= TMath::Abs(qp);
+ if(qp >1.e-4){
+ qcheck+=qp;
+ cluster[0][iNpads]=qp*qtot;// --- store signal information
+ cluster[1][iNpads]=fSegmentation->Ix();
+ cluster[2][iNpads]=fSegmentation->Iy();
+ cluster[3][iNpads]=fSegmentation->ISector();
+ iNpads++;
}
-
-}
+ }//pad loop
+}//DisIntegration(...
+//__________________________________________________________________________________________________
+void AliRICHChamber::Print(Option_t *) const
+{
+//debug printout method
+ printf("%s r=%8.3f theta=%5.1f phi=%5.1f x=%8.3f y=%8.3f z=%8.3f %6.2f,%6.2f %6.2f,%6.2f %6.2f,%6.2f\n",fName.Data(),
+ Rho(), ThetaD(),PhiD(), X(), Y(), Z(),
+ ThetaXd(),PhiXd(),ThetaYd(),PhiYd(),ThetaZd(),PhiZd());
+}//Print()
+//__________________________________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff