-/**************************************************************************
- * 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. *
- **************************************************************************/
-
-/* $Id$ */
+// **************************************************************************
+// * 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 "AliRICHConst.h" //for r2d
-#include "AliRICHParam.h"
-#include <TRandom.h>
#include <TRotMatrix.h>
-#include "AliRICHTresholdMap.h"
-#include "AliSegmentation.h"
-#include "AliRICHSegmentationV0.h"
-#include "AliRICHGeometry.h"
-#include "AliRICHResponse.h"
+#include <AliLog.h>
+#include "AliRICHParam.h"
ClassImp(AliRICHChamber)
-//______________________________________________________________________________
-AliRICHChamber::AliRICHChamber()
-{//default ctor
- fpParam=0;
- fpRotMatrix=0;
-
- fSegmentation = 0;
- fResponse = 0;
- fGeometry = 0;
- fReconstruction = 0;
- fTresh = 0;
- frMin = 0.1;
- frMax = 140;
- for(Int_t i=0; i<50; ++i) fIndexMap[i] = 0;
-}
-//______________________________________________________________________________
-AliRICHChamber::AliRICHChamber(Int_t iModuleN,AliRICHParam *pParam)
-{//named ctor. Defines all geometry parameters for the given module.
- // 4 5 6 |----> X
- // 1 2 3 |
- // 0 V Z
- SetCenter(0,pParam->Offset(),0);//put to 2 position
- switch(iModuleN){
- case 0:
- RotateX(pParam->AngleYZ());
- fName="RICHc0";fTitle="RICH chamber 0";
- break;
- case 1:
- RotateZ(pParam->AngleXY());
- fName="RICHc1";fTitle="RICH chamber 1";
- break;
- case 2:
- fName="RICHc2";fTitle="RICH chamber 2";
- break;
- case 3:
- RotateZ(-pParam->AngleXY());
- fName="RICHc3";fTitle="RICH chamber 3";
- break;
- case 4:
- RotateX(-pParam->AngleYZ()); //ÐÏÒÑÄÏË ×ÁÖÅÎ, ÐÏ×ÏÒÏÔ ÎÅ ËÏÍÕÔÁÔÉ×ÅÎ
- RotateZ( pParam->AngleXY());
- fName="RICHc4";fTitle="RICH chamber 4";
- break;
- case 5:
- RotateX(-pParam->AngleYZ());
- fName="RICHc5";fTitle="RICH chamber 5";
- break;
- case 6:
- RotateX(-pParam->AngleYZ());
- RotateZ(-pParam->AngleXY());
- fName="RICHc6";fTitle="RICH chamber 6";
- break;
- default:
- Fatal("named ctor","Wrong chamber number %i, check muster class ctor",iModuleN);
- }//switch(iModuleN)
- RotateZ(pParam->AngleRot());//apply common rotation
- new TRotMatrix("rot"+fName,"rot"+fName, Rot().ThetaX()*r2d, Rot().PhiX()*r2d,
- Rot().ThetaY()*r2d, Rot().PhiY()*r2d,
- Rot().ThetaZ()*r2d, Rot().PhiZ()*r2d);
- fpParam=pParam;
-}
//______________________________________________________________________________
-
-void AliRICHChamber::LocaltoGlobal(Float_t pos[3],Float_t Globalpos[3])
-{//Local coordinates to global coordinates transformation
-
- Double_t *pMatrix;
- pMatrix = fpRotMatrix->GetMatrix();
- Globalpos[0]=pos[0]*pMatrix[0]+pos[1]*pMatrix[3]+pos[2]*pMatrix[6];
- Globalpos[1]=pos[0]*pMatrix[1]+pos[1]*pMatrix[4]+pos[2]*pMatrix[7];
- Globalpos[2]=pos[0]*pMatrix[2]+pos[1]*pMatrix[5]+pos[2]*pMatrix[8];
- Globalpos[0]+=fX;
- Globalpos[1]+=fY;
- Globalpos[2]+=fZ;
-}
-
-void AliRICHChamber::GlobaltoLocal(Float_t pos[3],Float_t Localpos[3])
-{// Global coordinates to local coordinates transformation
- 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++)
- matrixCopy(j,i)=pMatrixOrig[j+3*i];
- }
- matrixCopy.Invert();
- Localpos[0] = pos[0] - fX;
- Localpos[1] = pos[1] - fY;
- Localpos[2] = pos[2] - fZ;
- Localpos[0]=Localpos[0]*matrixCopy(0,0)+Localpos[1]*matrixCopy(0,1)+Localpos[2]*matrixCopy(0,2);
- Localpos[1]=Localpos[0]*matrixCopy(1,0)+Localpos[1]*matrixCopy(1,1)+Localpos[2]*matrixCopy(1,2);
- Localpos[2]=Localpos[0]*matrixCopy(2,0)+Localpos[1]*matrixCopy(2,1)+Localpos[2]*matrixCopy(2,2);
-}
-
-void AliRICHChamber::DisIntegration(Float_t eloss, Float_t xhit, Float_t yhit,
- Int_t& nnew,Float_t newclust[5][500],ResponseType res)
+AliRICHChamber::AliRICHChamber(Int_t iChamber):TNamed()
{
-// 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);
-
- Int_t nFp=0;
-
-
- // 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);
- nFp = fResponse->FeedBackPhotons(global,qtot);
- //printf("feedbacks:%d\n",nFp);
- } else if (res==kCerenkov) {
- qtot = fResponse->IntPH(newy);
- nFp = fResponse->FeedBackPhotons(global,qtot);
- //printf("feedbacks:%d\n",nFp);
- }
-
- //printf("Feedbacks:%d\n",nFp);
-
- //
- // Loop Over Pads
-
- Float_t qcheck=0, qp=0;
-
- nnew=0;
- for (fSegmentation->FirstPad(xhit, yhit, 0, dx, dy);
- fSegmentation->MorePads();
- fSegmentation->NextPad())
- {
- qp= fResponse->IntXY(fSegmentation);
- qp= TMath::Abs(qp);
-
- //printf("Qp:%f Qtot %f\n",qp,qtot);
-
- if (qp > 1.e-4) {
- qcheck+=qp;
- //
- // --- store signal information
- newclust[0][nnew]=qp*qtot;
- newclust[1][nnew]=fSegmentation->Ix();
- newclust[2][nnew]=fSegmentation->Iy();
- newclust[3][nnew]=fSegmentation->ISector();
- nnew++;
- //printf("Newcluster:%d\n",i);
- }
- } // Pad loop
-}//void AliRICHChamber::DisIntegration(...
-//______________________________________________________________________________
-void AliRICHChamber::GenerateTresholds()
-{//Generates random treshold charges for all pads
- Int_t nx = fSegmentation->Npx();
- Int_t ny = fSegmentation->Npy();
-
- fTresh = new AliRICHTresholdMap(fSegmentation);
- 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));
- fTresh->SetHit(i,j,pedestal);
- }
- }
-}//void AliRICHChamber::GenerateTresholds()
-//______________________________________________________________________________
-void AliRICHChamber::Print(Option_t *option) const
+//main ctor. Defines all geometry parameters for the given module.
+// 7 6 ^
+// 5 4 3 |
+// 2 1 |
+// <-----z y . x
+ if(iChamber!=0){ //if iChamber=0 then special test config: chamber without any shift and rotation
+ 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 20 grad
+
+ RotY(90);//rotate around y since initial position is in XY plane
+ fRad .SetXYZ(490-2 ,0,0); //position of the entrance to freon 1.5 cm of freon+0.5 cm of quartz window
+ fCenter.SetXYZ(490 ,0,0); //shift center along x by 490 cm
+ fAnod .SetXYZ(490+8-0.2,0,0); //position of the center of apmlification gap (anod wires plane)
+ fPc .SetXYZ(490+8 ,0,0); //position of the center of PC
+ switch(iChamber){
+ case 1:
+ RotY(kAngHor); RotZ(-kAngVer); //right and down
+ break;
+ case 2:
+ RotZ(-kAngVer); //down
+ break;
+ case 3:
+ RotY(kAngHor); //right
+ break;
+ case 4:
+ break; //no rotation
+ case 5:
+ RotY(-kAngHor); //left
+ break;
+ case 6:
+ RotZ(kAngVer); //up
+ break;
+ case 7:
+ RotY(-kAngHor); RotZ(kAngVer); //left and up
+ break;
+ default:
+ Fatal("named ctor","Wrong chamber number %i, check CreateChamber ctor",iChamber);
+ }//switch(iChamber)
+ RotZ(kAngCom); //apply common rotation
+ }//if(iChamber
+ fName=Form("RICHc%i",iChamber);fTitle=Form("RICH chamber %i",iChamber);
+ 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());
+}//main ctor
+//__________________________________________________________________________________________________
+void AliRICHChamber::Print(Option_t *opt) const
{
- Info(fName.Data(),"r=%8.3f theta=%5.1f phi=%5.1f x=%8.3f y=%8.3f z=%8.3f",
- Rho(), Theta()*r2d,Phi()*r2d , X(), Y(), Z());
-}//void AliRICHChamber::Print(Option_t *option)const
+// Debug printout
+ TNamed::Print(opt);
+ fRad.Print(opt);
+ fCenter.Print(opt);
+ fAnod.Print(opt);
+ fPc.Print(opt);
+}//Print()
+//__________________________________________________________________________________________________
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff