- agri = 63.54;
- zgri = 29.;
- densgri = 8.96;
- radlgri = 1.43;
-
- // --- Parameters to include in GSMATE related to aluminium sheet
-
- aal = 26.98;
- zal = 13.;
- densal = 2.7;
- radlal = 8.9;
-
- // --- Glass parameters
-
- Float_t aglass[5]={12.01, 28.09, 16., 10.8, 23.};
- Float_t zglass[5]={ 6., 14., 8., 5., 11.};
- Float_t wglass[5]={ 0.5, 0.105, 0.355, 0.03, 0.01};
- Float_t dglass=1.74;
-
-
- AliMaterial(1, "Air $", 14.61, 7.3, .001205, 30420., 67500);
- AliMaterial(6, "HON", ahon, zhon, denshon, radlhon, 0);
- AliMaterial(16, "CSI", ahon, zhon, denshon, radlhon, 0);
- AliMixture(20, "QUA", aqua, zqua, densqua, nlmatqua, wmatqua);
- AliMixture(21, "QUAO", aquao, zquao, densquao, nlmatquao, wmatquao);
- AliMixture(30, "FRE", afre, zfre, densfre, nlmatfre, wmatfre);
- AliMixture(40, "MET", amet, zmet, densmet, nlmatmet, wmatmet);
- AliMixture(41, "METG", amet, zmet, densmet, nlmatmet, wmatmet);
- AliMaterial(11, "GRI", agri, zgri, densgri, radlgri, 0);
- AliMaterial(50, "ALUM", aal, zal, densal, radlal, 0);
- AliMixture(32, "GLASS",aglass, zglass, dglass, 5, wglass);
- AliMaterial(31, "COPPER$", 63.54, 29., 8.96, 1.4, 0.);
-
- tmaxfd = -10.;
- stemax = -.1;
- deemax = -.2;
- epsil = .001;
- stmin = -.001;
-
- AliMedium(1, "DEFAULT MEDIUM AIR$", 1, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(2, "HONEYCOMB$", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(3, "QUARZO$", 20, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(4, "FREON$", 30, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(5, "METANO$", 40, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(6, "CSI$", 16, 1, isxfld, sxmgmx,tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(7, "GRIGLIA$", 11, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(8, "QUARZOO$", 21, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(9, "GAP$", 41, 1, isxfld, sxmgmx,tmaxfd, .1, -deemax, epsil, -stmin);
- AliMedium(10, "ALUMINUM$", 50, 1, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(11, "GLASS", 32, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
- AliMedium(12, "PCB_COPPER", 31, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
-
-
- gMC->SetCerenkov(idtmed[1000], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
- gMC->SetCerenkov(idtmed[1001], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
- gMC->SetCerenkov(idtmed[1002], 26, ppckov, abscoQuarz, efficAll,rIndexQuarz);
- gMC->SetCerenkov(idtmed[1003], 26, ppckov, abscoFreon, efficAll,rIndexFreon);
- gMC->SetCerenkov(idtmed[1004], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
- gMC->SetCerenkov(idtmed[1005], 26, ppckov, abscoCsI, efficCsI, rIndexMethane);
- gMC->SetCerenkov(idtmed[1006], 26, ppckov, abscoGrid, efficGrid, rIndexGrid);
- gMC->SetCerenkov(idtmed[1007], 26, ppckov, abscoOpaqueQuarz, efficAll, rIndexOpaqueQuarz);
- gMC->SetCerenkov(idtmed[1008], 26, ppckov, abscoMethane, efficAll, rIndexMethane);
- gMC->SetCerenkov(idtmed[1009], 26, ppckov, abscoGrid, efficGrid, rIndexGrid);
- gMC->SetCerenkov(idtmed[1010], 26, ppckov, abscoOpaqueQuarz, efficAll, rIndexOpaqueQuarz);
-}
-
-//___________________________________________
-
-Float_t AliRICH::Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)
-{
-
- //ENE(EV), PDOTI=COS(INC.ANG.), PDOTR=COS(POL.PLANE ROT.ANG.)
-
- 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);
-}
-
-//__________________________________________
-Float_t AliRICH::AbsoCH4(Float_t x)
-{
-
- //KLOSCH,SCH4(9),WL(9),EM(9),ALENGTH(31)
- Float_t sch4[9] = {.12,.16,.23,.38,.86,2.8,7.9,28.,80.}; //MB X 10^22
- //Float_t wl[9] = {153.,152.,151.,150.,149.,148.,147.,146.,145};
- Float_t em[9] = {8.1,8.158,8.212,8.267,8.322,8.378,8.435,8.493,8.55};
- const Float_t kLosch=2.686763E19; // LOSCHMIDT NUMBER IN CM-3
- const Float_t kIgas1=100, kIgas2=0, kOxy=10., kWater=5., kPressure=750.,kTemperature=283.;
- Float_t pn=kPressure/760.;
- Float_t tn=kTemperature/273.16;
-
-
-// ------- METHANE CROSS SECTION -----------------
-// ASTROPH. J. 214, L47 (1978)
-
- Float_t sm=0;
- if (x<7.75)
- sm=.06e-22;
-
- if(x>=7.75 && x<=8.1)
- {
- Float_t c0=-1.655279e-1;
- Float_t c1=6.307392e-2;
- Float_t c2=-8.011441e-3;
- Float_t c3=3.392126e-4;
- sm=(c0+c1*x+c2*x*x+c3*x*x*x)*1.e-18;
- }
-
- if (x> 8.1)
- {
- Int_t j=0;
- while (x<=em[j] && x>=em[j+1])
- {
- j++;
- Float_t a=(sch4[j+1]-sch4[j])/(em[j+1]-em[j]);
- sm=(sch4[j]+a*(x-em[j]))*1e-22;
- }
- }
-
- Float_t dm=(kIgas1/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn;
- Float_t abslm=1./sm/dm;
-
-// ------- ISOBUTHANE CROSS SECTION --------------
-// i-C4H10 (ai) abs. length from curves in
-// Lu-McDonald paper for BARI RICH workshop .
-// -----------------------------------------------------------
-
- Float_t ai;
- Float_t absli;
- if (kIgas2 != 0)
- {
- if (x<7.25)
- ai=100000000.;
-
- if(x>=7.25 && x<7.375)
- ai=24.3;
-
- if(x>=7.375)
- ai=.0000000001;
-
- Float_t si = 1./(ai*kLosch*273.16/293.); // ISOB. CRO.SEC.IN CM2
- Float_t di=(kIgas2/100.)*(1.-((kOxy+kWater)/1.e6))*kLosch*pn/tn;
- absli =1./si/di;
- }
- else
- absli=1.e18;
-// ---------------------------------------------------------
-//
-// transmission of O2
-//
-// y= path in cm, x=energy in eV
-// so= cross section for UV absorption in cm2
-// do= O2 molecular density in cm-3
-// ---------------------------------------------------------
-
- Float_t abslo;
- Float_t so=0;
- if(x>=6.0)
- {
- if(x>=6.0 && x<6.5)
- {
- so=3.392709e-13 * TMath::Exp(2.864104 *x);
- so=so*1e-18;
- }
-
- if(x>=6.5 && x<7.0)
- {
- so=2.910039e-34 * TMath::Exp(10.3337*x);
- so=so*1e-18;
- }
-
-
- if (x>=7.0)
- {
- Float_t a0=-73770.76;
- Float_t a1=46190.69;
- Float_t a2=-11475.44;
- Float_t a3=1412.611;
- Float_t a4=-86.07027;
- Float_t a5=2.074234;
- so= a0+(a1*x)+(a2*x*x)+(a3*x*x*x)+(a4*x*x*x*x)+(a5*x*x*x*x*x);
- so=so*1e-18;
- }
-
- Float_t dox=(kOxy/1e6)*kLosch*pn/tn;
- abslo=1./so/dox;
- }
- else
- abslo=1.e18;
-// ---------------------------------------------------------
-//
-// transmission of H2O
-//
-// y= path in cm, x=energy in eV
-// sw= cross section for UV absorption in cm2
-// dw= H2O molecular density in cm-3
-// ---------------------------------------------------------
-
- Float_t abslw;
-
- Float_t b0=29231.65;
- Float_t b1=-15807.74;
- Float_t b2=3192.926;
- Float_t b3=-285.4809;
- Float_t b4=9.533944;
-
- if(x>6.75)
- {
- Float_t sw= b0+(b1*x)+(b2*x*x)+(b3*x*x*x)+(b4*x*x*x*x);
- sw=sw*1e-18;
- Float_t dw=(kWater/1e6)*kLosch*pn/tn;
- abslw=1./sw/dw;
- }
- else
- abslw=1.e18;
-
-// ---------------------------------------------------------
-
- Float_t alength=1./(1./abslm+1./absli+1./abslo+1./abslw);
- return (alength);
-}
-
-
-
-//___________________________________________
-Int_t AliRICH::DistancetoPrimitive(Int_t , Int_t )
-{
-
-// Default value
-
- return 9999;
-}
-
-//___________________________________________
-void AliRICH::MakeBranch(Option_t* option, char *file)
-{
- // Create Tree branches for the RICH.
-
- const Int_t kBufferSize = 4000;
- char branchname[20];
-
- AliDetector::MakeBranch(option,file);
-
- const char *cH = strstr(option,"H");
- const char *cD = strstr(option,"D");
- const char *cR = strstr(option,"R");
- const char *cS = strstr(option,"S");
-
-
- if (cH) {
- sprintf(branchname,"%sCerenkov",GetName());
- if (fCerenkovs && gAlice->TreeH()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeH(),
- branchname, &fCerenkovs, kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- }
- sprintf(branchname,"%sSDigits",GetName());
- if (fSDigits && gAlice->TreeH()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeH(),
- branchname, &fSDigits, kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- //printf("Making branch %sSDigits in TreeH\n",GetName());
- }
- }
-
- if (cS) {
- sprintf(branchname,"%sSDigits",GetName());
- if (fSDigits && gAlice->TreeS()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeS(),
- branchname, &fSDigits, kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- //printf("Making branch %sSDigits in TreeS\n",GetName());
- }
- }
-
- if (cD) {
- //
- // one branch for digits per chamber
- //
- Int_t i;
-
- for (i=0; i<kNCH ;i++) {
- sprintf(branchname,"%sDigits%d",GetName(),i+1);
- if (fDchambers && gAlice->TreeD()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeD(),
- branchname, &((*fDchambers)[i]), kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- //printf("Making Branch %sDigits%d\n",GetName(),i+1);
- }
- }
- }
-
- if (cR) {
- //
- // one branch for raw clusters per chamber
- //
-
- //printf("Called MakeBranch for TreeR\n");
-
- Int_t i;
-
- for (i=0; i<kNCH ;i++) {
- sprintf(branchname,"%sRawClusters%d",GetName(),i+1);
- if (fRawClusters && gAlice->TreeR()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeR(),
- branchname, &((*fRawClusters)[i]), kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- }
- }
- //
- // one branch for rec hits per chamber
- //
- for (i=0; i<kNCH ;i++) {
- sprintf(branchname,"%sRecHits1D%d",GetName(),i+1);
- if (fRecHits1D && gAlice->TreeR()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeR(),
- branchname, &((*fRecHits1D)[i]), kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- }
- }
- for (i=0; i<kNCH ;i++) {
- sprintf(branchname,"%sRecHits3D%d",GetName(),i+1);
- if (fRecHits3D && gAlice->TreeR()) {
- TBranch* branch = gAlice->MakeBranchInTree(gAlice->TreeR(),
- branchname, &((*fRecHits3D)[i]), kBufferSize, file) ;
- branch->SetAutoDelete(kFALSE);
- }
- }
- }
-}
-
-//___________________________________________
-void AliRICH::SetTreeAddress()
-{
- // Set branch address for the Hits and Digits Tree.
- char branchname[20];
- Int_t i;
-
- AliDetector::SetTreeAddress();
-
- TBranch *branch;
- TTree *treeH = gAlice->TreeH();
- TTree *treeD = gAlice->TreeD();
- TTree *treeR = gAlice->TreeR();
- TTree *treeS = gAlice->TreeS();
-
- if (treeH) {
- if (fCerenkovs) {
- branch = treeH->GetBranch("RICHCerenkov");
- if (branch) branch->SetAddress(&fCerenkovs);
- }
- if (fSDigits) {
- branch = treeH->GetBranch("RICHSDigits");
- if (branch)
- {
- branch->SetAddress(&fSDigits);
- //printf("Setting sdigits branch address at %p in TreeH\n",&fSDigits);
- }
- }
- }
-
- if (treeS) {
- if (fSDigits) {
- branch = treeS->GetBranch("RICHSDigits");
- if (branch)
- {
- branch->SetAddress(&fSDigits);
- //printf("Setting sdigits branch address at %p in TreeS\n",&fSDigits);
- }
- }
- }
-
-
- if (treeD) {
- for (int i=0; i<kNCH; i++) {
- sprintf(branchname,"%sDigits%d",GetName(),i+1);
- if (fDchambers) {
- branch = treeD->GetBranch(branchname);
- if (branch) branch->SetAddress(&((*fDchambers)[i]));
- }
- }
- }
- if (treeR) {
- for (i=0; i<kNCH; i++) {
- sprintf(branchname,"%sRawClusters%d",GetName(),i+1);
- if (fRawClusters) {
- branch = treeR->GetBranch(branchname);
- if (branch) branch->SetAddress(&((*fRawClusters)[i]));
- }
- }
-
- for (i=0; i<kNCH; i++) {
- sprintf(branchname,"%sRecHits1D%d",GetName(),i+1);
- if (fRecHits1D) {
- branch = treeR->GetBranch(branchname);
- if (branch) branch->SetAddress(&((*fRecHits1D)[i]));
- }
- }
-
- for (i=0; i<kNCH; i++) {
- sprintf(branchname,"%sRecHits3D%d",GetName(),i+1);
- if (fRecHits3D) {
- branch = treeR->GetBranch(branchname);
- if (branch) branch->SetAddress(&((*fRecHits3D)[i]));
- }
- }
-
- }
-}
-//___________________________________________
-void AliRICH::ResetHits()
-{
- // Reset number of clusters and the cluster array for this detector
- AliDetector::ResetHits();
- fNSDigits = 0;
- fNcerenkovs = 0;
- if (fSDigits) fSDigits->Clear();
- if (fCerenkovs) fCerenkovs->Clear();
-}
-
-
-//____________________________________________
-void AliRICH::ResetDigits()
-{
- //
- // Reset number of digits and the digits array for this detector
- //
- for ( int i=0;i<kNCH;i++ ) {
- if (fDchambers && (*fDchambers)[i]) (*fDchambers)[i]->Clear();
- if (fNdch) fNdch[i]=0;
- }
-}
-
-//____________________________________________
-void AliRICH::ResetRawClusters()
-{
- //
- // Reset number of raw clusters and the raw clust array for this detector
- //
- for ( int i=0;i<kNCH;i++ ) {
- if ((*fRawClusters)[i]) ((TClonesArray*)(*fRawClusters)[i])->Clear();
- if (fNrawch) fNrawch[i]=0;
- }
-}
-
-//____________________________________________
-void AliRICH::ResetRecHits1D()
-{
- //
- // Reset number of raw clusters and the raw clust array for this detector
- //
-
- for ( int i=0;i<kNCH;i++ ) {
- if ((*fRecHits1D)[i]) ((TClonesArray*)(*fRecHits1D)[i])->Clear();
- if (fNrechits1D) fNrechits1D[i]=0;
- }
-}
-
-//____________________________________________
-void AliRICH::ResetRecHits3D()
-{
- //
- // Reset number of raw clusters and the raw clust array for this detector
- //
-
- for ( int i=0;i<kNCH;i++ ) {
- if ((*fRecHits3D)[i]) ((TClonesArray*)(*fRecHits3D)[i])->Clear();
- if (fNrechits3D) fNrechits3D[i]=0;
- }
-}
-
-//___________________________________________
-void AliRICH::SetGeometryModel(Int_t id, AliRICHGeometry *geometry)
-{
-
-//
-// Setter for the RICH geometry model
-//
-
-
- ((AliRICHChamber*) (*fChambers)[id])->GeometryModel(geometry);
-}
-
-//___________________________________________
-void AliRICH::SetSegmentationModel(Int_t id, AliSegmentation *segmentation)
-{
-
-//
-// Setter for the RICH segmentation model
-//
-
- ((AliRICHChamber*) (*fChambers)[id])->SetSegmentationModel(segmentation);
-}
-
-//___________________________________________
-void AliRICH::SetResponseModel(Int_t id, AliRICHResponse *response)
-{
-
-//
-// Setter for the RICH response model
-//
-
- ((AliRICHChamber*) (*fChambers)[id])->ResponseModel(response);
-}
-
-void AliRICH::SetReconstructionModel(Int_t id, AliRICHClusterFinder *reconst)
-{
-
-//
-// Setter for the RICH reconstruction model (clusters)
-//
-
- ((AliRICHChamber*) (*fChambers)[id])->SetReconstructionModel(reconst);
-}
-
-//___________________________________________
-void AliRICH::StepManager()
-{
-
-// Full Step Manager
-
- Int_t copy, id;
- static Int_t idvol;
- static Int_t vol[2];
- Int_t ipart;
- static Float_t hits[22];
- static Float_t ckovData[19];
- TLorentzVector position;
- TLorentzVector momentum;
- Float_t pos[3];
- Float_t mom[4];
- Float_t localPos[3];
- Float_t localMom[4];
- Float_t localTheta,localPhi;
- Float_t theta,phi;
- Float_t destep, step;
- Float_t ranf[2];
- Int_t nPads;
- Float_t coscerenkov;
- static Float_t eloss, xhit, yhit, tlength;
- const Float_t kBig=1.e10;
-
- TClonesArray &lhits = *fHits;
- TParticle *current = (TParticle*)(*gAlice->Particles())[gAlice->CurrentTrack()];
-
- //if (current->Energy()>1)
- //{
-
- // Only gas gap inside chamber
- // Tag chambers and record hits when track enters
-
- idvol=-1;
- id=gMC->CurrentVolID(copy);
- Float_t cherenkovLoss=0;
- //gAlice->KeepTrack(gAlice->CurrentTrack());
-
- gMC->TrackPosition(position);
- pos[0]=position(0);
- pos[1]=position(1);
- pos[2]=position(2);
- //bzero((char *)ckovData,sizeof(ckovData)*19);
- ckovData[1] = pos[0]; // X-position for hit
- ckovData[2] = pos[1]; // Y-position for hit
- ckovData[3] = pos[2]; // Z-position for hit
- ckovData[6] = 0; // dummy track length
- //ckovData[11] = gAlice->CurrentTrack();
-
- //printf("\n+++++++++++\nTrack: %d\n++++++++++++\n",gAlice->CurrentTrack());
-
- //AliRICH *RICH = (AliRICH *) gAlice->GetDetector("RICH");
-
- /********************Store production parameters for Cerenkov photons************************/
-//is it a Cerenkov photon?
- if (gMC->TrackPid() == 50000050) {
-
- //if (gMC->VolId("GAP ")==gMC->CurrentVolID(copy))
- //{
- Float_t ckovEnergy = current->Energy();
- //energy interval for tracking
- if (ckovEnergy > 5.6e-09 && ckovEnergy < 7.8e-09 )
- //if (ckovEnergy > 0)
- {
- if (gMC->IsTrackEntering()){ //is track entering?
- //printf("Track entered (1)\n");
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- { //is it in freo?
- if (gMC->IsNewTrack()){ //is it the first step?
- //printf("I'm in!\n");
- Int_t mother = current->GetFirstMother();
-
- //printf("Second Mother:%d\n",current->GetSecondMother());
-
- ckovData[10] = mother;
- ckovData[11] = gAlice->CurrentTrack();
- ckovData[12] = 1; //Media where photon was produced 1->Freon, 2->Quarz
- //printf("Produced in FREO\n");
- fCkovNumber++;
- fFreonProd=1;
- //printf("Index: %d\n",fCkovNumber);
- } //first step question
- } //freo question
-
- if (gMC->IsNewTrack()){ //is it first step?
- if (gMC->VolId("QUAR")==gMC->CurrentVolID(copy)) //is it in quarz?
- {
- ckovData[12] = 2;
- //printf("Produced in QUAR\n");
- } //quarz question
- } //first step question
-
- //printf("Before %d\n",fFreonProd);
- } //track entering question
-
- if (ckovData[12] == 1) //was it produced in Freon?
- //if (fFreonProd == 1)
- {
- if (gMC->IsTrackEntering()){ //is track entering?
- //printf("Track entered (2)\n");
- //printf("Current volume (should be META): %s\n",gMC->CurrentVolName());
- //printf("VolId: %d, CurrentVolID: %d\n",gMC->VolId("META"),gMC->CurrentVolID(copy));
- if (gMC->VolId("META")==gMC->CurrentVolID(copy)) //is it in gap?
- {
- //printf("Got in META\n");
- gMC->TrackMomentum(momentum);
- mom[0]=momentum(0);
- mom[1]=momentum(1);
- mom[2]=momentum(2);
- mom[3]=momentum(3);
- // Z-position for hit
-
-
- /**************** Photons lost in second grid have to be calculated by hand************/
-
- Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
- Float_t t = (1. - .025 / cophi) * (1. - .05 / cophi);
- gMC->Rndm(ranf, 1);
- //printf("grid calculation:%f\n",t);
- if (ranf[0] > t) {
- gMC->StopTrack();
- ckovData[13] = 5;
- AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- //printf("Added One (1)!\n");
- //printf("Lost one in grid\n");
- }
- /**********************************************************************************/
- } //gap
-
- //printf("Current volume (should be CSI) (1): %s\n",gMC->CurrentVolName());
- //printf("VolId: %d, CurrentVolID: %d\n",gMC->VolId("CSI "),gMC->CurrentVolID(copy));
- if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy)) //is it in csi?
- {
- //printf("Got in CSI\n");
- gMC->TrackMomentum(momentum);
- mom[0]=momentum(0);
- mom[1]=momentum(1);
- mom[2]=momentum(2);
- mom[3]=momentum(3);
-
- /********* Photons lost by Fresnel reflection have to be calculated by hand********/
- /***********************Cerenkov phtons (always polarised)*************************/
-
- Float_t cophi = TMath::Cos(TMath::ATan2(mom[0], mom[1]));
- Float_t t = Fresnel(ckovEnergy*1e9,cophi,1);
- gMC->Rndm(ranf, 1);
- if (ranf[0] < t) {
- gMC->StopTrack();
- ckovData[13] = 6;
- AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- //printf("Added One (2)!\n");
- //printf("Lost by Fresnel\n");
- }
- /**********************************************************************************/
- }
- } //track entering?
-
-
- /********************Evaluation of losses************************/
- /******************still in the old fashion**********************/
-
- TArrayI procs;
- Int_t i1 = gMC->StepProcesses(procs); //number of physics mechanisms acting on the particle
- for (Int_t i = 0; i < i1; ++i) {
- // Reflection loss
- if (procs[i] == kPLightReflection) { //was it reflected
- ckovData[13]=10;
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- ckovData[13]=1;
- if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
- ckovData[13]=2;
- //gMC->StopTrack();
- //AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- } //reflection question
-
- // Absorption loss
- else if (procs[i] == kPLightAbsorption) { //was it absorbed?
- //printf("Got in absorption\n");
- ckovData[13]=20;
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- ckovData[13]=11;
- if (gMC->CurrentVolID(copy) == gMC->VolId("QUAR"))
- ckovData[13]=12;
- if (gMC->CurrentVolID(copy) == gMC->VolId("META"))
- ckovData[13]=13;
- if (gMC->CurrentVolID(copy) == gMC->VolId("GAP "))
- ckovData[13]=13;
-
- if (gMC->CurrentVolID(copy) == gMC->VolId("SRIC"))
- ckovData[13]=15;
-
- // CsI inefficiency
- if (gMC->CurrentVolID(copy) == gMC->VolId("CSI ")) {
- ckovData[13]=16;
- }
- gMC->StopTrack();
- AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- //printf("Added One (3)!\n");
- //printf("Added cerenkov %d\n",fCkovNumber);
- } //absorption question
-
-
- // Photon goes out of tracking scope
- else if (procs[i] == kPStop) { //is it below energy treshold?
- ckovData[13]=21;
- gMC->StopTrack();
- AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- //printf("Added One (4)!\n");
- } // energy treshold question
- } //number of mechanisms cycle
- /**********************End of evaluation************************/
- } //freon production question
- } //energy interval question
- //}//inside the proximity gap question
- } //cerenkov photon question
-
- /**************************************End of Production Parameters Storing*********************/
-
-
- /*******************************Treat photons that hit the CsI (Ckovs and Feedbacks)************/
-
- if (gMC->TrackPid() == 50000050 || gMC->TrackPid() == 50000051) {
- //printf("Cerenkov\n");
- if (gMC->VolId("CSI ")==gMC->CurrentVolID(copy))
- {
- //printf("Current volume (should be CSI) (2): %s\n",gMC->CurrentVolName());
- //printf("VolId: %d, CurrentVolID: %d\n",gMC->VolId("CSI "),gMC->CurrentVolID(copy));
- //printf("Got in CSI\n");
- if (gMC->Edep() > 0.){
- gMC->TrackPosition(position);
- gMC->TrackMomentum(momentum);
- pos[0]=position(0);
- pos[1]=position(1);
- pos[2]=position(2);
- mom[0]=momentum(0);
- mom[1]=momentum(1);
- mom[2]=momentum(2);
- mom[3]=momentum(3);
- Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
- Double_t rt = TMath::Sqrt(tc);
- theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
- phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
- gMC->Gmtod(pos,localPos,1);
- gMC->Gmtod(mom,localMom,2);
-
- gMC->CurrentVolOffID(2,copy);
- vol[0]=copy;
- idvol=vol[0]-1;
-
- //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
- //->Sector(localPos[0], localPos[2]);
- //printf("Sector:%d\n",sector);
-
- /*if (gMC->TrackPid() == 50000051){
- fFeedbacks++;
- printf("Feedbacks:%d\n",fFeedbacks);
- }*/
-
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(localPos[0], localPos[2], localPos[1]);
- if(idvol<kNCH) {
- ckovData[0] = gMC->TrackPid(); // particle type
- ckovData[1] = pos[0]; // X-position for hit
- ckovData[2] = pos[1]; // Y-position for hit
- ckovData[3] = pos[2]; // Z-position for hit
- ckovData[4] = theta; // theta angle of incidence
- ckovData[5] = phi; // phi angle of incidence
- ckovData[8] = (Float_t) fNSDigits; // first sdigit
- ckovData[9] = -1; // last pad hit
- ckovData[13] = 4; // photon was detected
- ckovData[14] = mom[0];
- ckovData[15] = mom[1];
- ckovData[16] = mom[2];
-
- destep = gMC->Edep();
- gMC->SetMaxStep(kBig);
- cherenkovLoss += destep;
- ckovData[7]=cherenkovLoss;
-
- nPads = Hits2SDigits(localPos[0],localPos[2],cherenkovLoss,idvol,kCerenkov);
-
- if (fNSDigits > (Int_t)ckovData[8]) {
- ckovData[8]= ckovData[8]+1;
- ckovData[9]= (Float_t) fNSDigits;
- }
-
- //printf("Cerenkov loss: %f\n", cherenkovLoss);
-
- ckovData[17] = nPads;
- //printf("nPads:%d",nPads);
-
- //TClonesArray *Hits = RICH->Hits();
- AliRICHHit *mipHit = (AliRICHHit*) (fHits->UncheckedAt(0));
- if (mipHit)
- {
- mom[0] = current->Px();
- mom[1] = current->Py();
- mom[2] = current->Pz();
- Float_t mipPx = mipHit->fMomX;
- Float_t mipPy = mipHit->fMomY;
- Float_t mipPz = mipHit->fMomZ;
-
- Float_t r = mom[0]*mom[0] + mom[1]*mom[1] + mom[2]*mom[2];
- Float_t rt = TMath::Sqrt(r);
- Float_t mipR = mipPx*mipPx + mipPy*mipPy + mipPz*mipPz;
- Float_t mipRt = TMath::Sqrt(mipR);
- if ((rt*mipRt) > 0)
- {
- coscerenkov = (mom[0]*mipPx + mom[1]*mipPy + mom[2]*mipPz)/(rt*mipRt);
- }
- else
- {
- coscerenkov = 0;
- }
- Float_t cherenkov = TMath::ACos(coscerenkov);
- ckovData[18]=cherenkov;
- }
- //if (sector != -1)
- //{
- AddHit(gAlice->CurrentTrack(),vol,ckovData);
- AddCerenkov(gAlice->CurrentTrack(),vol,ckovData);
- //printf("Added One (5)!\n");
- //}
- }
- }
- }
- }
-
- /***********************************************End of photon hits*********************************************/
-
-
- /**********************************************Charged particles treatment*************************************/
-
- else if (gMC->TrackCharge())
- //else if (1 == 1)
- {
-//If MIP
- /*if (gMC->IsTrackEntering())
- {
- hits[13]=20;//is track entering?
- }*/
- if (gMC->VolId("FRE1")==gMC->CurrentVolID(copy) || gMC->VolId("FRE2")==gMC->CurrentVolID(copy))
- {
- gMC->TrackMomentum(momentum);
- mom[0]=momentum(0);
- mom[1]=momentum(1);
- mom[2]=momentum(2);
- mom[3]=momentum(3);
- hits [19] = mom[0];
- hits [20] = mom[1];
- hits [21] = mom[2];
- fFreonProd=1;
- }
-
- if (gMC->VolId("GAP ")== gMC->CurrentVolID(copy)) {
-// Get current particle id (ipart), track position (pos) and momentum (mom)
-
- gMC->CurrentVolOffID(3,copy);
- vol[0]=copy;
- idvol=vol[0]-1;
-
- //Int_t sector=((AliRICHChamber*) (*fChambers)[idvol])
- //->Sector(localPos[0], localPos[2]);
- //printf("Sector:%d\n",sector);
-
- gMC->TrackPosition(position);
- gMC->TrackMomentum(momentum);
- pos[0]=position(0);
- pos[1]=position(1);
- pos[2]=position(2);
- mom[0]=momentum(0);
- mom[1]=momentum(1);
- mom[2]=momentum(2);
- mom[3]=momentum(3);
- gMC->Gmtod(pos,localPos,1);
- gMC->Gmtod(mom,localMom,2);
-
- ipart = gMC->TrackPid();
- //
- // momentum loss and steplength in last step
- destep = gMC->Edep();
- step = gMC->TrackStep();
-
- //
- // record hits when track enters ...
- if( gMC->IsTrackEntering()) {
-// gMC->SetMaxStep(fMaxStepGas);
- Double_t tc = mom[0]*mom[0]+mom[1]*mom[1];
- Double_t rt = TMath::Sqrt(tc);
- theta = Float_t(TMath::ATan2(rt,Double_t(mom[2])))*kRaddeg;
- phi = Float_t(TMath::ATan2(Double_t(mom[1]),Double_t(mom[0])))*kRaddeg;
-
-
- Double_t localTc = localMom[0]*localMom[0]+localMom[2]*localMom[2];
- Double_t localRt = TMath::Sqrt(localTc);
- localTheta = Float_t(TMath::ATan2(localRt,Double_t(localMom[1])))*kRaddeg;
- localPhi = Float_t(TMath::ATan2(Double_t(localMom[2]),Double_t(localMom[0])))*kRaddeg;
-
- hits[0] = Float_t(ipart); // particle type
- hits[1] = localPos[0]; // X-position for hit
- hits[2] = localPos[1]; // Y-position for hit
- hits[3] = localPos[2]; // Z-position for hit
- hits[4] = localTheta; // theta angle of incidence
- hits[5] = localPhi; // phi angle of incidence
- hits[8] = (Float_t) fNSDigits; // first sdigit
- hits[9] = -1; // last pad hit
- hits[13] = fFreonProd; // did id hit the freon?
- hits[14] = mom[0];
- hits[15] = mom[1];
- hits[16] = mom[2];
- hits[18] = 0; // dummy cerenkov angle
-
- tlength = 0;
- eloss = 0;
- fFreonProd = 0;
-
- Chamber(idvol).LocaltoGlobal(localPos,hits+1);
-
-
- //To make chamber coordinates x-y had to pass localPos[0], localPos[2]
- xhit = localPos[0];
- yhit = localPos[2];
- // Only if not trigger chamber
- if(idvol<kNCH) {
- //
- // Initialize hit position (cursor) in the segmentation model
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(localPos[0], localPos[2], localPos[1]);
- }
- }
-
- //
- // Calculate the charge induced on a pad (disintegration) in case
- //
- // Mip left chamber ...
- if( gMC->IsTrackExiting() || gMC->IsTrackStop() || gMC->IsTrackDisappeared()){
- gMC->SetMaxStep(kBig);
- eloss += destep;
- tlength += step;
-
-
- // Only if not trigger chamber
- if(idvol<kNCH) {
- if (eloss > 0)
- {
- if(gMC->TrackPid() == kNeutron)
- printf("\n\n\n\n\n Neutron Making Pad Hit!!! \n\n\n\n");
- nPads = Hits2SDigits(xhit,yhit,eloss,idvol,kMip);
- hits[17] = nPads;
- //printf("nPads:%d",nPads);
- }
- }
-
- hits[6]=tlength;
- hits[7]=eloss;
- if (fNSDigits > (Int_t)hits[8]) {
- hits[8]= hits[8]+1;
- hits[9]= (Float_t) fNSDigits;
- }
-
- //if(sector !=-1)
- new(lhits[fNhits++]) AliRICHHit(fIshunt,gAlice->CurrentTrack(),vol,hits);
- eloss = 0;
- //
- // Check additional signal generation conditions
- // defined by the segmentation
- // model (boundary crossing conditions)
- } else if
- (((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenCond(localPos[0], localPos[2], localPos[1]))
- {
- ((AliRICHChamber*) (*fChambers)[idvol])
- ->SigGenInit(localPos[0], localPos[2], localPos[1]);
- if (eloss > 0)
- {
- if(gMC->TrackPid() == kNeutron)
- printf("\n\n\n\n\n Neutron Making Pad Hit!!! \n\n\n\n");
- nPads = Hits2SDigits(xhit,yhit,eloss,idvol,kMip);
- hits[17] = nPads;
- //printf("Npads:%d",NPads);
- }
- xhit = localPos[0];
- yhit = localPos[2];
- eloss = destep;
- tlength += step ;
- //
- // nothing special happened, add up energy loss
- } else {
- eloss += destep;
- tlength += step ;
- }
- }
- }
- /*************************************************End of MIP treatment**************************************/
- //}
-}
-
-void AliRICH::FindClusters(Int_t nev,Int_t lastEntry)
-{
-
-//
-// Loop on chambers and on cathode planes
-//
- for (Int_t icat=1;icat<2;icat++) {
- gAlice->ResetDigits();
- gAlice->TreeD()->GetEvent(0);
- for (Int_t ich=0;ich<kNCH;ich++) {
- AliRICHChamber* iChamber=(AliRICHChamber*) (*fChambers)[ich];
- TClonesArray *pRICHdigits = this->DigitsAddress(ich);
- if (pRICHdigits == 0)
- continue;
- //
- // Get ready the current chamber stuff
- //
- AliRICHResponse* response = iChamber->GetResponseModel();
- AliSegmentation* seg = iChamber->GetSegmentationModel();
- AliRICHClusterFinder* rec = iChamber->GetReconstructionModel();
- if (seg) {
- rec->SetSegmentation(seg);
- rec->SetResponse(response);
- rec->SetDigits(pRICHdigits);
- rec->SetChamber(ich);
- if (nev==0) rec->CalibrateCOG();
- rec->FindRawClusters();
- }
- TClonesArray *fRch;
- fRch=RawClustAddress(ich);
- fRch->Sort();
- } // for ich
-
- gAlice->TreeR()->Fill();
- TClonesArray *fRch;
- for (int i=0;i<kNCH;i++) {
- fRch=RawClustAddress(i);
- int nraw=fRch->GetEntriesFast();
- printf ("Chamber %d, raw clusters %d\n",i,nraw);
- }
-
- ResetRawClusters();
-
- } // for icat
-
- char hname[30];
- sprintf(hname,"TreeR%d",nev);
- gAlice->TreeR()->Write(hname,kOverwrite,0);
- gAlice->TreeR()->Reset();
-
- //gObjectTable->Print();
-}
-
-AliRICHSDigit* AliRICH::FirstPad(AliRICHHit* hit,TClonesArray *clusters )
-{
-//
- // Initialise the pad iterator
- // Return the address of the first sdigit for hit
- TClonesArray *theClusters = clusters;
- Int_t nclust = theClusters->GetEntriesFast();
- if (nclust && hit->fPHlast > 0) {
- sMaxIterPad=Int_t(hit->fPHlast);
- sCurIterPad=Int_t(hit->fPHfirst);
- return (AliRICHSDigit*) clusters->UncheckedAt(sCurIterPad-1);
- } else {
- return 0;
- }
-
-}
-
-AliRICHSDigit* AliRICH::NextPad(TClonesArray *clusters)
-{
-
- // Iterates over pads
-
- sCurIterPad++;
- if (sCurIterPad <= sMaxIterPad) {
- return (AliRICHSDigit*) clusters->UncheckedAt(sCurIterPad-1);
- } else {
- return 0;
- }
-}
-
-AliRICH& AliRICH::operator=(const AliRICH& rhs)
-{
-// Assignment operator
- return *this;
-
-}
-
-
-