/************************************************************************** * 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. * **************************************************************************/ /* $Id$ */ //_________________________________________________________________________ // Implementation version v0 of PHOS Manager class // Layout EMC + PPSD has name GPS2 // //*-- Author: Yves Schutz (SUBATECH) // --- ROOT system --- #include "TBRIK.h" #include "TNode.h" #include "TRandom.h" // --- Standard library --- #include #include #include #include // --- AliRoot header files --- #include "AliPHOSv0.h" #include "AliPHOSHit.h" #include "AliPHOSDigit.h" #include "AliPHOSReconstructioner.h" #include "AliRun.h" #include "AliConst.h" ClassImp(AliPHOSv0) //____________________________________________________________________________ AliPHOSv0::AliPHOSv0() { // ctor fNTmpHits = 0 ; fTmpHits = 0 ; } //____________________________________________________________________________ AliPHOSv0::AliPHOSv0(const char *name, const char *title): AliPHOS(name,title) { // ctor : title is used to identify the layout // GPS2 = 5 modules (EMC + PPSD) // We use 2 arrays of hits : // // - fHits (the "normal" one), which retains the hits associated with // the current primary particle being tracked // (this array is reset after each primary has been tracked). // // - fTmpHits, which retains all the hits of the current event. It // is used for the digitization part. fPinElectronicNoise = 0.010 ; fDigitThreshold = 1. ; // 1 GeV // We do not want to save in TreeH the raw hits // fHits = new TClonesArray("AliPHOSHit",100) ; // gAlice->AddHitList(fHits) ; // But save the cumulated hits instead (need to create the branch myself) // It is put in the Digit Tree because the TreeH is filled after each primary // and the TreeD at the end of the event (branch is set in FinishEvent() ). fTmpHits= new TClonesArray("AliPHOSHit",100) ; fNTmpHits = fNhits = 0 ; fDigits = new TClonesArray("AliPHOSDigit",100) ; fIshunt = 1 ; // All hits are associated with primary particles // gets an instance of the geometry parameters class fGeom = AliPHOSGeometry::GetInstance(title, "") ; if (fGeom->IsInitialized() ) cout << "AliPHOSv0 : PHOS geometry intialized for " << fGeom->GetName() << endl ; else cout << "AliPHOSv0 : PHOS geometry initialization failed !" << endl ; } //____________________________________________________________________________ AliPHOSv0::AliPHOSv0(AliPHOSReconstructioner * Reconstructioner, const char *name, const char *title): AliPHOS(name,title) { // ctor : title is used to identify the layout // GPS2 = 5 modules (EMC + PPSD) // We use 2 arrays of hits : // // - fHits (the "normal" one), which retains the hits associated with // the current primary particle being tracked // (this array is reset after each primary has been tracked). // // - fTmpHits, which retains all the hits of the current event. It // is used for the digitization part. fPinElectronicNoise = 0.010 ; // We do not want to save in TreeH the raw hits //fHits = new TClonesArray("AliPHOSHit",100) ; fDigits = new TClonesArray("AliPHOSDigit",100) ; fTmpHits= new TClonesArray("AliPHOSHit",100) ; fNTmpHits = fNhits = 0 ; fIshunt = 1 ; // All hits are associated with primary particles // gets an instance of the geometry parameters class fGeom = AliPHOSGeometry::GetInstance(title, "") ; if (fGeom->IsInitialized() ) cout << "AliPHOSv0 : PHOS geometry intialized for " << fGeom->GetName() << endl ; else cout << "AliPHOSv0 : PHOS geometry initialization failed !" << endl ; // Defining the PHOS Reconstructioner fReconstructioner = Reconstructioner ; } //____________________________________________________________________________ AliPHOSv0::~AliPHOSv0() { // dtor if ( fTmpHits) { fTmpHits->Delete() ; delete fTmpHits ; fTmpHits = 0 ; } if ( fEmcRecPoints ) { fEmcRecPoints->Delete() ; delete fEmcRecPoints ; fEmcRecPoints = 0 ; } if ( fPpsdRecPoints ) { fPpsdRecPoints->Delete() ; delete fPpsdRecPoints ; fPpsdRecPoints = 0 ; } if ( fTrackSegments ) { fTrackSegments->Delete() ; delete fTrackSegments ; fTrackSegments = 0 ; } } //____________________________________________________________________________ void AliPHOSv0::AddHit(Int_t primary, Int_t Id, Float_t * hits) { // Add a hit to the hit list. // A PHOS hit is the sum of all hits in a single crystal // or in a single PPSD gas cell Int_t hitCounter ; TClonesArray <mphits = *fTmpHits ; AliPHOSHit *newHit ; AliPHOSHit *curHit ; // AliPHOSHit *curHit2 ; Bool_t deja = kFALSE ; // In any case, fills the fTmpHit TClonesArray (with "accumulated hits") newHit = new AliPHOSHit(primary, Id, hits) ; // We do not want to save in TreeH the raw hits // TClonesArray &lhits = *fHits; for ( hitCounter = 0 ; hitCounter < fNTmpHits && !deja ; hitCounter++ ) { curHit = (AliPHOSHit*) ltmphits[hitCounter] ; if( *curHit == *newHit ) { *curHit = *curHit + *newHit ; deja = kTRUE ; } } if ( !deja ) { new(ltmphits[fNTmpHits]) AliPHOSHit(*newHit) ; fNTmpHits++ ; } // We do not want to save in TreeH the raw hits // new(lhits[fNhits]) AliPHOSHit(*newHit) ; // fNhits++ ; // Please note that the fTmpHits array must survive up to the // end of the events, so it does not appear e.g. in ResetHits() ( // which is called at the end of each primary). delete newHit; } //____________________________________________________________________________ void AliPHOSv0::BuildGeometry() { // Build the PHOS geometry for the ROOT display //BEGIN_HTML /*

PHOS in ALICE displayed by root

  • All Views

    All Views

  • Front View

    Front View

  • 3D View 1

    3D View 1

  • 3D View 2

    3D View 2

*/ //END_HTML this->BuildGeometryforPHOS() ; if ( ( strcmp(fGeom->GetName(), "GPS2" ) == 0 ) ) this->BuildGeometryforPPSD() ; else cout << "AliPHOSv0::BuildGeometry : no charged particle identification system installed" << endl; } //____________________________________________________________________________ void AliPHOSv0:: BuildGeometryforPHOS(void) { // Build the PHOS-EMC geometry for the ROOT display const Int_t kColorPHOS = kRed ; const Int_t kColorXTAL = kBlue ; Double_t const kRADDEG = 180.0 / kPI ; new TBRIK( "OuterBox", "PHOS box", "void", fGeom->GetOuterBoxSize(0)/2, fGeom->GetOuterBoxSize(1)/2, fGeom->GetOuterBoxSize(2)/2 ); // Textolit Wall box, position inside PHOS new TBRIK( "TextolitBox", "PHOS Textolit box ", "void", fGeom->GetTextolitBoxSize(0)/2, fGeom->GetTextolitBoxSize(1)/2, fGeom->GetTextolitBoxSize(2)/2); // Polystyrene Foam Plate new TBRIK( "UpperFoamPlate", "PHOS Upper foam plate", "void", fGeom->GetTextolitBoxSize(0)/2, fGeom->GetSecondUpperPlateThickness()/2, fGeom->GetTextolitBoxSize(2)/2 ) ; // Air Filled Box new TBRIK( "AirFilledBox", "PHOS air filled box", "void", fGeom->GetAirFilledBoxSize(0)/2, fGeom->GetAirFilledBoxSize(1)/2, fGeom->GetAirFilledBoxSize(2)/2 ); // Crystals Box Float_t xtlX = fGeom->GetCrystalSize(0) ; Float_t xtlY = fGeom->GetCrystalSize(1) ; Float_t xtlZ = fGeom->GetCrystalSize(2) ; Float_t xl = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ; Float_t yl = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 + fGeom->GetModuleBoxThickness() / 2.0 ; Float_t zl = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ; new TBRIK( "CrystalsBox", "PHOS crystals box", "void", xl, yl, zl ) ; // position PHOS into ALICE Float_t r = fGeom->GetIPtoOuterCoverDistance() + fGeom->GetOuterBoxSize(1) / 2.0 ; Int_t number = 988 ; Float_t pphi = TMath::ATan( fGeom->GetOuterBoxSize(0) / ( 2.0 * fGeom->GetIPtoOuterCoverDistance() ) ) ; pphi *= kRADDEG ; TNode * top = gAlice->GetGeometry()->GetNode("alice") ; char * nodename = new char[20] ; char * rotname = new char[20] ; for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { Float_t angle = pphi * 2 * ( i - fGeom->GetNModules() / 2.0 - 0.5 ) ; sprintf(rotname, "%s%d", "rot", number++) ; new TRotMatrix(rotname, rotname, 90, angle, 90, 90 + angle, 0, 0); top->cd(); sprintf(nodename,"%s%d", "Module", i) ; Float_t x = r * TMath::Sin( angle / kRADDEG ) ; Float_t y = -r * TMath::Cos( angle / kRADDEG ) ; TNode * outerboxnode = new TNode(nodename, nodename, "OuterBox", x, y, 0, rotname ) ; outerboxnode->SetLineColor(kColorPHOS) ; fNodes->Add(outerboxnode) ; outerboxnode->cd() ; // now inside the outer box the textolit box y = ( fGeom->GetOuterBoxThickness(1) - fGeom->GetUpperPlateThickness() ) / 2. ; sprintf(nodename,"%s%d", "TexBox", i) ; TNode * textolitboxnode = new TNode(nodename, nodename, "TextolitBox", 0, y, 0) ; textolitboxnode->SetLineColor(kColorPHOS) ; fNodes->Add(textolitboxnode) ; // upper foam plate inside outre box outerboxnode->cd() ; sprintf(nodename, "%s%d", "UFPlate", i) ; y = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetSecondUpperPlateThickness() ) / 2.0 ; TNode * upperfoamplatenode = new TNode(nodename, nodename, "UpperFoamPlate", 0, y, 0) ; upperfoamplatenode->SetLineColor(kColorPHOS) ; fNodes->Add(upperfoamplatenode) ; // air filled box inside textolit box (not drawn) textolitboxnode->cd(); y = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetAirFilledBoxSize(1) ) / 2.0 - fGeom->GetSecondUpperPlateThickness() ; sprintf(nodename, "%s%d", "AFBox", i) ; TNode * airfilledboxnode = new TNode(nodename, nodename, "AirFilledBox", 0, y, 0) ; fNodes->Add(airfilledboxnode) ; // crystals box inside air filled box airfilledboxnode->cd() ; y = fGeom->GetAirFilledBoxSize(1) / 2.0 - yl - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() ) ; sprintf(nodename, "%s%d", "XTBox", i) ; TNode * crystalsboxnode = new TNode(nodename, nodename, "CrystalsBox", 0, y, 0) ; crystalsboxnode->SetLineColor(kColorXTAL) ; fNodes->Add(crystalsboxnode) ; } } //____________________________________________________________________________ void AliPHOSv0:: BuildGeometryforPPSD(void) { // Build the PHOS-PPSD geometry for the ROOT display //BEGIN_HTML /*

PPSD displayed by root

  • Zoom on PPSD: Front View

    PPSD Front View

  • Zoom on PPSD: Perspective View

    PPSD Prespective View

*/ //END_HTML Double_t const kRADDEG = 180.0 / kPI ; const Int_t kColorPHOS = kRed ; const Int_t kColorPPSD = kGreen ; const Int_t kColorGas = kBlue ; const Int_t kColorAir = kYellow ; // Box for a full PHOS module new TBRIK( "PPSDBox", "PPSD box", "void", fGeom->GetPPSDBoxSize(0)/2, fGeom->GetPPSDBoxSize(1)/2, fGeom->GetPPSDBoxSize(2)/2 ); // Box containing one micromegas module new TBRIK( "PPSDModule", "PPSD module", "void", fGeom->GetPPSDModuleSize(0)/2, fGeom->GetPPSDModuleSize(1)/2, fGeom->GetPPSDModuleSize(2)/2 ); // top lid new TBRIK ( "TopLid", "Micromegas top lid", "void", fGeom->GetPPSDModuleSize(0)/2, fGeom->GetLidThickness()/2, fGeom->GetPPSDModuleSize(2)/2 ) ; // composite panel (top and bottom) new TBRIK ( "TopPanel", "Composite top panel", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, fGeom->GetCompositeThickness()/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; new TBRIK ( "BottomPanel", "Composite bottom panel", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, fGeom->GetCompositeThickness()/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; // gas gap (conversion and avalanche) new TBRIK ( "GasGap", "gas gap", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() )/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; // anode and cathode new TBRIK ( "Anode", "Anode", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, fGeom->GetAnodeThickness()/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; new TBRIK ( "Cathode", "Cathode", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, fGeom->GetCathodeThickness()/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; // PC new TBRIK ( "PCBoard", "Printed Circuit", "void", ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() )/2, fGeom->GetPCThickness()/2, ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() )/2 ) ; // Gap between Lead and top micromegas new TBRIK ( "LeadToM", "Air Gap top", "void", fGeom->GetPPSDBoxSize(0)/2, fGeom->GetMicro1ToLeadGap()/2, fGeom->GetPPSDBoxSize(2)/2 ) ; // Gap between Lead and bottom micromegas new TBRIK ( "MToLead", "Air Gap bottom", "void", fGeom->GetPPSDBoxSize(0)/2, fGeom->GetLeadToMicro2Gap()/2, fGeom->GetPPSDBoxSize(2)/2 ) ; // Lead converter new TBRIK ( "Lead", "Lead converter", "void", fGeom->GetPPSDBoxSize(0)/2, fGeom->GetLeadConverterThickness()/2, fGeom->GetPPSDBoxSize(2)/2 ) ; // position PPSD into ALICE char * nodename = new char[20] ; char * rotname = new char[20] ; Float_t r = fGeom->GetIPtoTopLidDistance() + fGeom->GetPPSDBoxSize(1) / 2.0 ; Int_t number = 988 ; TNode * top = gAlice->GetGeometry()->GetNode("alice") ; for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { // the number of PHOS modules Float_t angle = fGeom->GetPHOSAngle(i) ; sprintf(rotname, "%s%d", "rotg", number++) ; new TRotMatrix(rotname, rotname, 90, angle, 90, 90 + angle, 0, 0); top->cd(); sprintf(nodename, "%s%d", "Moduleg", i) ; Float_t x = r * TMath::Sin( angle / kRADDEG ) ; Float_t y = -r * TMath::Cos( angle / kRADDEG ) ; TNode * ppsdboxnode = new TNode(nodename , nodename ,"PPSDBox", x, y, 0, rotname ) ; ppsdboxnode->SetLineColor(kColorPPSD) ; fNodes->Add(ppsdboxnode) ; ppsdboxnode->cd() ; // inside the PPSD box: // 1. fNumberOfModulesPhi x fNumberOfModulesZ top micromegas x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. ; { for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) { // the number of micromegas modules in phi per PHOS module Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. ; TNode * micro1node ; for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) { // the number of micromegas modules in z per PHOS module y = ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas1Thickness() ) / 2. ; sprintf(nodename, "%s%d%d%d", "Mic1", i, iphi, iz) ; micro1node = new TNode(nodename, nodename, "PPSDModule", x, y, z) ; micro1node->SetLineColor(kColorPPSD) ; fNodes->Add(micro1node) ; // inside top micromegas micro1node->cd() ; // a. top lid y = ( fGeom->GetMicromegas1Thickness() - fGeom->GetLidThickness() ) / 2. ; sprintf(nodename, "%s%d%d%d", "Lid", i, iphi, iz) ; TNode * toplidnode = new TNode(nodename, nodename, "TopLid", 0, y, 0) ; toplidnode->SetLineColor(kColorPPSD) ; fNodes->Add(toplidnode) ; // b. composite panel y = y - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; sprintf(nodename, "%s%d%d%d", "CompU", i, iphi, iz) ; TNode * compupnode = new TNode(nodename, nodename, "TopPanel", 0, y, 0) ; compupnode->SetLineColor(kColorPPSD) ; fNodes->Add(compupnode) ; // c. anode y = y - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ; sprintf(nodename, "%s%d%d%d", "Ano", i, iphi, iz) ; TNode * anodenode = new TNode(nodename, nodename, "Anode", 0, y, 0) ; anodenode->SetLineColor(kColorPHOS) ; fNodes->Add(anodenode) ; // d. gas y = y - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ; sprintf(nodename, "%s%d%d%d", "GGap", i, iphi, iz) ; TNode * ggapnode = new TNode(nodename, nodename, "GasGap", 0, y, 0) ; ggapnode->SetLineColor(kColorGas) ; fNodes->Add(ggapnode) ; // f. cathode y = y - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ; sprintf(nodename, "%s%d%d%d", "Cathode", i, iphi, iz) ; TNode * cathodenode = new TNode(nodename, nodename, "Cathode", 0, y, 0) ; cathodenode->SetLineColor(kColorPHOS) ; fNodes->Add(cathodenode) ; // g. printed circuit y = y - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ; sprintf(nodename, "%s%d%d%d", "PC", i, iphi, iz) ; TNode * pcnode = new TNode(nodename, nodename, "PCBoard", 0, y, 0) ; pcnode->SetLineColor(kColorPPSD) ; fNodes->Add(pcnode) ; // h. composite panel y = y - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; sprintf(nodename, "%s%d%d%d", "CompDown", i, iphi, iz) ; TNode * compdownnode = new TNode(nodename, nodename, "BottomPanel", 0, y, 0) ; compdownnode->SetLineColor(kColorPPSD) ; fNodes->Add(compdownnode) ; z = z - fGeom->GetPPSDModuleSize(2) ; ppsdboxnode->cd() ; } // end of Z module loop x = x - fGeom->GetPPSDModuleSize(0) ; ppsdboxnode->cd() ; } // end of phi module loop } // 2. air gap ppsdboxnode->cd() ; y = ( fGeom->GetPPSDBoxSize(1) - 2 * fGeom->GetMicromegas1Thickness() - fGeom->GetMicro1ToLeadGap() ) / 2. ; sprintf(nodename, "%s%d", "GapUp", i) ; TNode * gapupnode = new TNode(nodename, nodename, "LeadToM", 0, y, 0) ; gapupnode->SetLineColor(kColorAir) ; fNodes->Add(gapupnode) ; // 3. lead converter y = y - fGeom->GetMicro1ToLeadGap() / 2. - fGeom->GetLeadConverterThickness() / 2. ; sprintf(nodename, "%s%d", "LeadC", i) ; TNode * leadcnode = new TNode(nodename, nodename, "Lead", 0, y, 0) ; leadcnode->SetLineColor(kColorPPSD) ; fNodes->Add(leadcnode) ; // 4. air gap y = y - fGeom->GetLeadConverterThickness() / 2. - fGeom->GetLeadToMicro2Gap() / 2. ; sprintf(nodename, "%s%d", "GapDown", i) ; TNode * gapdownnode = new TNode(nodename, nodename, "MToLead", 0, y, 0) ; gapdownnode->SetLineColor(kColorAir) ; fNodes->Add(gapdownnode) ; // 5. fNumberOfModulesPhi x fNumberOfModulesZ bottom micromegas x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. - fGeom->GetPhiDisplacement() ; { for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) { Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. - fGeom->GetZDisplacement() ;; TNode * micro2node ; for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) { y = - ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas2Thickness() ) / 2. ; sprintf(nodename, "%s%d%d%d", "Mic2", i, iphi, iz) ; micro2node = new TNode(nodename, nodename, "PPSDModule", x, y, z) ; micro2node->SetLineColor(kColorPPSD) ; fNodes->Add(micro2node) ; // inside bottom micromegas micro2node->cd() ; // a. top lid y = ( fGeom->GetMicromegas2Thickness() - fGeom->GetLidThickness() ) / 2. ; sprintf(nodename, "%s%d", "Lidb", i) ; TNode * toplidbnode = new TNode(nodename, nodename, "TopLid", 0, y, 0) ; toplidbnode->SetLineColor(kColorPPSD) ; fNodes->Add(toplidbnode) ; // b. composite panel y = y - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; sprintf(nodename, "%s%d", "CompUb", i) ; TNode * compupbnode = new TNode(nodename, nodename, "TopPanel", 0, y, 0) ; compupbnode->SetLineColor(kColorPPSD) ; fNodes->Add(compupbnode) ; // c. anode y = y - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ; sprintf(nodename, "%s%d", "Anob", i) ; TNode * anodebnode = new TNode(nodename, nodename, "Anode", 0, y, 0) ; anodebnode->SetLineColor(kColorPPSD) ; fNodes->Add(anodebnode) ; // d. conversion gas y = y - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ; sprintf(nodename, "%s%d", "GGapb", i) ; TNode * ggapbnode = new TNode(nodename, nodename, "GasGap", 0, y, 0) ; ggapbnode->SetLineColor(kColorGas) ; fNodes->Add(ggapbnode) ; // f. cathode y = y - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ; sprintf(nodename, "%s%d", "Cathodeb", i) ; TNode * cathodebnode = new TNode(nodename, nodename, "Cathode", 0, y, 0) ; cathodebnode->SetLineColor(kColorPPSD) ; fNodes->Add(cathodebnode) ; // g. printed circuit y = y - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ; sprintf(nodename, "%s%d", "PCb", i) ; TNode * pcbnode = new TNode(nodename, nodename, "PCBoard", 0, y, 0) ; pcbnode->SetLineColor(kColorPPSD) ; fNodes->Add(pcbnode) ; // h. composite pane y = y - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; sprintf(nodename, "%s%d", "CompDownb", i) ; TNode * compdownbnode = new TNode(nodename, nodename, "BottomPanel", 0, y, 0) ; compdownbnode->SetLineColor(kColorPPSD) ; fNodes->Add(compdownbnode) ; z = z - fGeom->GetPPSDModuleSize(2) ; ppsdboxnode->cd() ; } // end of Z module loop x = x - fGeom->GetPPSDModuleSize(0) ; ppsdboxnode->cd() ; } // end of phi module loop } } // PHOS modules delete rotname ; delete nodename ; } //____________________________________________________________________________ void AliPHOSv0::CreateGeometry() { // Create the PHOS geometry for Geant AliPHOSv0 *phostmp = (AliPHOSv0*)gAlice->GetModule("PHOS") ; if ( phostmp == NULL ) { fprintf(stderr, "PHOS detector not found!\n") ; return; } // Get pointer to the array containing media indeces Int_t *idtmed = fIdtmed->GetArray() - 699 ; Float_t bigbox[3] ; bigbox[0] = fGeom->GetOuterBoxSize(0) / 2.0 ; bigbox[1] = ( fGeom->GetOuterBoxSize(1) + fGeom->GetPPSDBoxSize(1) ) / 2.0 ; bigbox[2] = fGeom->GetOuterBoxSize(2) / 2.0 ; gMC->Gsvolu("PHOS", "BOX ", idtmed[798], bigbox, 3) ; this->CreateGeometryforPHOS() ; if ( strcmp( fGeom->GetName(), "GPS2") == 0 ) this->CreateGeometryforPPSD() ; else cout << "AliPHOSv0::CreateGeometry : no charged particle identification system installed" << endl; // --- Position PHOS mdules in ALICE setup --- Int_t idrotm[99] ; Double_t const kRADDEG = 180.0 / kPI ; for( Int_t i = 1; i <= fGeom->GetNModules(); i++ ) { Float_t angle = fGeom->GetPHOSAngle(i) ; AliMatrix(idrotm[i-1], 90.0, angle, 90.0, 90.0+angle, 0.0, 0.0) ; Float_t r = fGeom->GetIPtoOuterCoverDistance() + ( fGeom->GetOuterBoxSize(1) + fGeom->GetPPSDBoxSize(1) ) / 2.0 ; Float_t xP1 = r * TMath::Sin( angle / kRADDEG ) ; Float_t yP1 = -r * TMath::Cos( angle / kRADDEG ) ; gMC->Gspos("PHOS", i, "ALIC", xP1, yP1, 0.0, idrotm[i-1], "ONLY") ; } // for GetNModules } //____________________________________________________________________________ void AliPHOSv0::CreateGeometryforPHOS() { // Create the PHOS-EMC geometry for GEANT //BEGIN_HTML /*

Geant3 geometry tree of PHOS-EMC in ALICE

EMC geant tree

*/ //END_HTML // Get pointer to the array containing media indexes Int_t *idtmed = fIdtmed->GetArray() - 699 ; // --- // --- Define PHOS box volume, fPUFPill with thermo insulating foam --- // --- Foam Thermo Insulating outer cover dimensions --- // --- Put it in bigbox = PHOS Float_t dphos[3] ; dphos[0] = fGeom->GetOuterBoxSize(0) / 2.0 ; dphos[1] = fGeom->GetOuterBoxSize(1) / 2.0 ; dphos[2] = fGeom->GetOuterBoxSize(2) / 2.0 ; gMC->Gsvolu("EMCA", "BOX ", idtmed[706], dphos, 3) ; Float_t yO = - fGeom->GetPPSDBoxSize(1) / 2.0 ; gMC->Gspos("EMCA", 1, "PHOS", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Textolit Wall box, position inside EMCA --- // --- Textolit Wall box dimentions --- Float_t dptxw[3]; dptxw[0] = fGeom->GetTextolitBoxSize(0) / 2.0 ; dptxw[1] = fGeom->GetTextolitBoxSize(1) / 2.0 ; dptxw[2] = fGeom->GetTextolitBoxSize(2) / 2.0 ; gMC->Gsvolu("PTXW", "BOX ", idtmed[707], dptxw, 3); yO = ( fGeom->GetOuterBoxThickness(1) - fGeom->GetUpperPlateThickness() ) / 2. ; gMC->Gspos("PTXW", 1, "EMCA", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Upper Polystyrene Foam Plate, place inside PTXW --- // --- immediately below Foam Thermo Insulation Upper plate --- // --- Upper Polystyrene Foam plate thickness --- Float_t dpufp[3] ; dpufp[0] = fGeom->GetTextolitBoxSize(0) / 2.0 ; dpufp[1] = fGeom->GetSecondUpperPlateThickness() / 2. ; dpufp[2] = fGeom->GetTextolitBoxSize(2) /2.0 ; gMC->Gsvolu("PUFP", "BOX ", idtmed[703], dpufp, 3) ; yO = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetSecondUpperPlateThickness() ) / 2.0 ; gMC->Gspos("PUFP", 1, "PTXW", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define air-filled box, place inside PTXW --- // --- Inner AIR volume dimensions --- Float_t dpair[3] ; dpair[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ; dpair[1] = fGeom->GetAirFilledBoxSize(1) / 2.0 ; dpair[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ; gMC->Gsvolu("PAIR", "BOX ", idtmed[798], dpair, 3) ; yO = ( fGeom->GetTextolitBoxSize(1) - fGeom->GetAirFilledBoxSize(1) ) / 2.0 - fGeom->GetSecondUpperPlateThickness() ; gMC->Gspos("PAIR", 1, "PTXW", 0.0, yO, 0.0, 0, "ONLY") ; // --- Dimensions of PbWO4 crystal --- Float_t xtlX = fGeom->GetCrystalSize(0) ; Float_t xtlY = fGeom->GetCrystalSize(1) ; Float_t xtlZ = fGeom->GetCrystalSize(2) ; Float_t dptcb[3] ; dptcb[0] = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ; dptcb[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 + fGeom->GetModuleBoxThickness() / 2.0 ; dptcb[2] = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 + fGeom->GetModuleBoxThickness() ; gMC->Gsvolu("PTCB", "BOX ", idtmed[706], dptcb, 3) ; yO = fGeom->GetAirFilledBoxSize(1) / 2.0 - dptcb[1] - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() ) ; gMC->Gspos("PTCB", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Crystal BLock filled with air, position it inside PTCB --- Float_t dpcbl[3] ; dpcbl[0] = fGeom->GetNPhi() * ( xtlX + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 ; dpcbl[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ; dpcbl[2] = fGeom->GetNZ() * ( xtlZ + 2 * fGeom->GetGapBetweenCrystals() ) / 2.0 ; gMC->Gsvolu("PCBL", "BOX ", idtmed[798], dpcbl, 3) ; // --- Divide PCBL in X (phi) and Z directions -- gMC->Gsdvn("PROW", "PCBL", Int_t (fGeom->GetNPhi()), 1) ; gMC->Gsdvn("PCEL", "PROW", Int_t (fGeom->GetNZ()), 3) ; yO = -fGeom->GetModuleBoxThickness() / 2.0 ; gMC->Gspos("PCBL", 1, "PTCB", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define STeel (actually, it's titanium) Cover volume, place inside PCEL Float_t dpstc[3] ; dpstc[0] = ( xtlX + 2 * fGeom->GetCrystalWrapThickness() ) / 2.0 ; dpstc[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ; dpstc[2] = ( xtlZ + 2 * fGeom->GetCrystalWrapThickness() + 2 * fGeom->GetCrystalHolderThickness() ) / 2.0 ; gMC->Gsvolu("PSTC", "BOX ", idtmed[704], dpstc, 3) ; gMC->Gspos("PSTC", 1, "PCEL", 0.0, 0.0, 0.0, 0, "ONLY") ; // --- // --- Define Tyvek volume, place inside PSTC --- Float_t dppap[3] ; dppap[0] = xtlX / 2.0 + fGeom->GetCrystalWrapThickness() ; dppap[1] = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 ; dppap[2] = xtlZ / 2.0 + fGeom->GetCrystalWrapThickness() ; gMC->Gsvolu("PPAP", "BOX ", idtmed[702], dppap, 3) ; yO = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 - ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() + fGeom->GetCrystalHolderThickness() ) / 2.0 ; gMC->Gspos("PPAP", 1, "PSTC", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define PbWO4 crystal volume, place inside PPAP --- Float_t dpxtl[3] ; dpxtl[0] = xtlX / 2.0 ; dpxtl[1] = xtlY / 2.0 ; dpxtl[2] = xtlZ / 2.0 ; gMC->Gsvolu("PXTL", "BOX ", idtmed[699], dpxtl, 3) ; yO = ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 - xtlY / 2.0 - fGeom->GetCrystalWrapThickness() ; gMC->Gspos("PXTL", 1, "PPAP", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define crystal support volume, place inside PPAP --- Float_t dpsup[3] ; dpsup[0] = xtlX / 2.0 + fGeom->GetCrystalWrapThickness() ; dpsup[1] = fGeom->GetCrystalSupportHeight() / 2.0 ; dpsup[2] = xtlZ / 2.0 + fGeom->GetCrystalWrapThickness() ; gMC->Gsvolu("PSUP", "BOX ", idtmed[798], dpsup, 3) ; yO = fGeom->GetCrystalSupportHeight() / 2.0 - ( xtlY + fGeom->GetCrystalSupportHeight() + fGeom->GetCrystalWrapThickness() ) / 2.0 ; gMC->Gspos("PSUP", 1, "PPAP", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define PIN-diode volume and position it inside crystal support --- // --- right behind PbWO4 crystal // --- PIN-diode dimensions --- Float_t dppin[3] ; dppin[0] = fGeom->GetPinDiodeSize(0) / 2.0 ; dppin[1] = fGeom->GetPinDiodeSize(1) / 2.0 ; dppin[2] = fGeom->GetPinDiodeSize(2) / 2.0 ; gMC->Gsvolu("PPIN", "BOX ", idtmed[705], dppin, 3) ; yO = fGeom->GetCrystalSupportHeight() / 2.0 - fGeom->GetPinDiodeSize(1) / 2.0 ; gMC->Gspos("PPIN", 1, "PSUP", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Upper Cooling Panel, place it on top of PTCB --- Float_t dpucp[3] ; // --- Upper Cooling Plate thickness --- dpucp[0] = dptcb[0] ; dpucp[1] = fGeom->GetUpperCoolingPlateThickness() ; dpucp[2] = dptcb[2] ; gMC->Gsvolu("PUCP", "BOX ", idtmed[701], dpucp,3) ; yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetUpperCoolingPlateThickness() ) / 2. - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetModuleBoxThickness() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() - fGeom->GetUpperCoolingPlateThickness() ) ; gMC->Gspos("PUCP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Al Support Plate, position it inside PAIR --- // --- right beneath PTCB --- // --- Al Support Plate thickness --- Float_t dpasp[3] ; dpasp[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ; dpasp[1] = fGeom->GetSupportPlateThickness() / 2.0 ; dpasp[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ; gMC->Gsvolu("PASP", "BOX ", idtmed[701], dpasp, 3) ; yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetSupportPlateThickness() ) / 2. - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 ) ; gMC->Gspos("PASP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Thermo Insulating Plate, position it inside PAIR --- // --- right beneath PASP --- // --- Lower Thermo Insulating Plate thickness --- Float_t dptip[3] ; dptip[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ; dptip[1] = fGeom->GetLowerThermoPlateThickness() / 2.0 ; dptip[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ; gMC->Gsvolu("PTIP", "BOX ", idtmed[706], dptip, 3) ; yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetLowerThermoPlateThickness() ) / 2. - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 + fGeom->GetSupportPlateThickness() ) ; gMC->Gspos("PTIP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ; // --- // --- Define Textolit Plate, position it inside PAIR --- // --- right beneath PTIP --- // --- Lower Textolit Plate thickness --- Float_t dptxp[3] ; dptxp[0] = fGeom->GetAirFilledBoxSize(0) / 2.0 ; dptxp[1] = fGeom->GetLowerTextolitPlateThickness() / 2.0 ; dptxp[2] = fGeom->GetAirFilledBoxSize(2) / 2.0 ; gMC->Gsvolu("PTXP", "BOX ", idtmed[707], dptxp, 3) ; yO = ( fGeom->GetAirFilledBoxSize(1) - fGeom->GetLowerTextolitPlateThickness() ) / 2. - ( fGeom->GetIPtoCrystalSurface() - fGeom->GetIPtoOuterCoverDistance() - fGeom->GetUpperPlateThickness() - fGeom->GetSecondUpperPlateThickness() + dpcbl[1] * 2 + fGeom->GetSupportPlateThickness() + fGeom->GetLowerThermoPlateThickness() ) ; gMC->Gspos("PTXP", 1, "PAIR", 0.0, yO, 0.0, 0, "ONLY") ; } //____________________________________________________________________________ void AliPHOSv0::CreateGeometryforPPSD() { // Create the PHOS-PPSD geometry for GEANT //BEGIN_HTML /*

Geant3 geometry tree of PHOS-PPSD in ALICE

PPSD geant tree

*/ //END_HTML // Get pointer to the array containing media indexes Int_t *idtmed = fIdtmed->GetArray() - 699 ; // The box containing all ppsd's for one PHOS module filled with air Float_t ppsd[3] ; ppsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ; ppsd[1] = fGeom->GetPPSDBoxSize(1) / 2.0 ; ppsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ; gMC->Gsvolu("PPSD", "BOX ", idtmed[798], ppsd, 3) ; Float_t yO = fGeom->GetOuterBoxSize(1) / 2.0 ; gMC->Gspos("PPSD", 1, "PHOS", 0.0, yO, 0.0, 0, "ONLY") ; // Now we build a micromegas module // The box containing the whole module filled with epoxy (FR4) Float_t mppsd[3] ; mppsd[0] = fGeom->GetPPSDModuleSize(0) / 2.0 ; mppsd[1] = fGeom->GetPPSDModuleSize(1) / 2.0 ; mppsd[2] = fGeom->GetPPSDModuleSize(2) / 2.0 ; gMC->Gsvolu("MPPS", "BOX ", idtmed[708], mppsd, 3) ; // Inside mppsd : // 1. The Top Lid made of epoxy (FR4) Float_t tlppsd[3] ; tlppsd[0] = fGeom->GetPPSDModuleSize(0) / 2.0 ; tlppsd[1] = fGeom->GetLidThickness() / 2.0 ; tlppsd[2] = fGeom->GetPPSDModuleSize(2) / 2.0 ; gMC->Gsvolu("TLPS", "BOX ", idtmed[708], tlppsd, 3) ; Float_t y0 = ( fGeom->GetMicromegas1Thickness() - fGeom->GetLidThickness() ) / 2. ; gMC->Gspos("TLPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 2. the upper panel made of composite material Float_t upppsd[3] ; upppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; upppsd[1] = fGeom->GetCompositeThickness() / 2.0 ; upppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("UPPS", "BOX ", idtmed[709], upppsd, 3) ; y0 = y0 - fGeom->GetLidThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; gMC->Gspos("UPPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 3. the anode made of Copper Float_t anppsd[3] ; anppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; anppsd[1] = fGeom->GetAnodeThickness() / 2.0 ; anppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("ANPS", "BOX ", idtmed[710], anppsd, 3) ; y0 = y0 - fGeom->GetCompositeThickness() / 2. - fGeom->GetAnodeThickness() / 2. ; gMC->Gspos("ANPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 4. the conversion gap + avalanche gap filled with gas Float_t ggppsd[3] ; ggppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; ggppsd[1] = ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2.0 ; ggppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("GGPS", "BOX ", idtmed[715], ggppsd, 3) ; // --- Divide GGPP in X (phi) and Z directions -- gMC->Gsdvn("GROW", "GGPS", fGeom->GetNumberOfPadsPhi(), 1) ; gMC->Gsdvn("GCEL", "GROW", fGeom->GetNumberOfPadsZ() , 3) ; y0 = y0 - fGeom->GetAnodeThickness() / 2. - ( fGeom->GetConversionGap() + fGeom->GetAvalancheGap() ) / 2. ; gMC->Gspos("GGPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 6. the cathode made of Copper Float_t cappsd[3] ; cappsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; cappsd[1] = fGeom->GetCathodeThickness() / 2.0 ; cappsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("CAPS", "BOX ", idtmed[710], cappsd, 3) ; y0 = y0 - ( fGeom->GetAvalancheGap() + fGeom->GetAvalancheGap() ) / 2. - fGeom->GetCathodeThickness() / 2. ; gMC->Gspos("CAPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 7. the printed circuit made of G10 Float_t pcppsd[3] ; pcppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2,.0 ; pcppsd[1] = fGeom->GetPCThickness() / 2.0 ; pcppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("PCPS", "BOX ", idtmed[711], cappsd, 3) ; y0 = y0 - fGeom->GetCathodeThickness() / 2. - fGeom->GetPCThickness() / 2. ; gMC->Gspos("PCPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // 8. the lower panel made of composite material Float_t lpppsd[3] ; lpppsd[0] = ( fGeom->GetPPSDModuleSize(0) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; lpppsd[1] = fGeom->GetCompositeThickness() / 2.0 ; lpppsd[2] = ( fGeom->GetPPSDModuleSize(2) - fGeom->GetMicromegasWallThickness() ) / 2.0 ; gMC->Gsvolu("LPPS", "BOX ", idtmed[709], lpppsd, 3) ; y0 = y0 - fGeom->GetPCThickness() / 2. - fGeom->GetCompositeThickness() / 2. ; gMC->Gspos("LPPS", 1, "MPPS", 0.0, y0, 0.0, 0, "ONLY") ; // Position the fNumberOfModulesPhi x fNumberOfModulesZ modules (mppsd) inside PPSD to cover a PHOS module // the top and bottom one's (which are assumed identical) : Float_t yt = ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas1Thickness() ) / 2. ; Float_t yb = - ( fGeom->GetPPSDBoxSize(1) - fGeom->GetMicromegas2Thickness() ) / 2. ; Int_t copyNumbertop = 0 ; Int_t copyNumberbot = fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() ; Float_t x = ( fGeom->GetPPSDBoxSize(0) - fGeom->GetPPSDModuleSize(0) ) / 2. ; for ( Int_t iphi = 1; iphi <= fGeom->GetNumberOfModulesPhi(); iphi++ ) { // the number of micromegas modules in phi per PHOS module Float_t z = ( fGeom->GetPPSDBoxSize(2) - fGeom->GetPPSDModuleSize(2) ) / 2. ; for ( Int_t iz = 1; iz <= fGeom->GetNumberOfModulesZ(); iz++ ) { // the number of micromegas modules in z per PHOS module gMC->Gspos("MPPS", ++copyNumbertop, "PPSD", x, yt, z, 0, "ONLY") ; gMC->Gspos("MPPS", ++copyNumberbot, "PPSD", x, yb, z, 0, "ONLY") ; z = z - fGeom->GetPPSDModuleSize(2) ; } // end of Z module loop x = x - fGeom->GetPPSDModuleSize(0) ; } // end of phi module loop // The Lead converter between two air gaps // 1. Upper air gap Float_t uappsd[3] ; uappsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ; uappsd[1] = fGeom->GetMicro1ToLeadGap() / 2.0 ; uappsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ; gMC->Gsvolu("UAPPSD", "BOX ", idtmed[798], uappsd, 3) ; y0 = ( fGeom->GetPPSDBoxSize(1) - 2 * fGeom->GetMicromegas1Thickness() - fGeom->GetMicro1ToLeadGap() ) / 2. ; gMC->Gspos("UAPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ; // 2. Lead converter Float_t lcppsd[3] ; lcppsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ; lcppsd[1] = fGeom->GetLeadConverterThickness() / 2.0 ; lcppsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ; gMC->Gsvolu("LCPPSD", "BOX ", idtmed[712], lcppsd, 3) ; y0 = y0 - fGeom->GetMicro1ToLeadGap() / 2. - fGeom->GetLeadConverterThickness() / 2. ; gMC->Gspos("LCPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ; // 3. Lower air gap Float_t lappsd[3] ; lappsd[0] = fGeom->GetPPSDBoxSize(0) / 2.0 ; lappsd[1] = fGeom->GetLeadToMicro2Gap() / 2.0 ; lappsd[2] = fGeom->GetPPSDBoxSize(2) / 2.0 ; gMC->Gsvolu("LAPPSD", "BOX ", idtmed[798], lappsd, 3) ; y0 = y0 - fGeom->GetLeadConverterThickness() / 2. - fGeom->GetLeadToMicro2Gap() / 2. ; gMC->Gspos("LAPPSD", 1, "PPSD", 0.0, y0, 0.0, 0, "ONLY") ; } //___________________________________________________________________________ Int_t AliPHOSv0::Digitize(Float_t Energy) { // Applies the energy calibration Float_t fB = 100000000. ; Float_t fA = 0. ; Int_t chan = Int_t(fA + Energy*fB ) ; return chan ; } //___________________________________________________________________________ void AliPHOSv0::FinishEvent() { // Makes the digits from the sum of summed hit in a single crystal or PPSD gas cell // Adds to the energy the electronic noise // Keeps digits with energy above fDigitThreshold // Save the cumulated hits instead of raw hits (need to create the branch myself) // It is put in the Digit Tree because the TreeH is filled after each primary // and the TreeD at the end of the event. if ( ! (gAlice->IsLegoRun()) ) { // only when not in lego plot mode if ( fTmpHits && gAlice->TreeD() ) { char branchname[10] ; sprintf(branchname, "%sCH", GetName()) ; gAlice->TreeD()->Branch(branchname, &fTmpHits, fBufferSize) ; } else cout << "AliPHOSv0::AliPHOSv0: Failed to create branch PHOSCH in TreeD " << endl ; } Int_t i ; Int_t relid[4]; Int_t j ; TClonesArray &lDigits = *fDigits ; AliPHOSHit * hit ; AliPHOSDigit * newdigit ; AliPHOSDigit * curdigit ; Bool_t deja = kFALSE ; for ( i = 0 ; i < fNTmpHits ; i++ ) { hit = (AliPHOSHit*)fTmpHits->At(i) ; newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ; deja =kFALSE ; for ( j = 0 ; j < fNdigits ; j++) { curdigit = (AliPHOSDigit*) lDigits[j] ; if ( *curdigit == *newdigit) { *curdigit = *curdigit + *newdigit ; deja = kTRUE ; } } if ( !deja ) { new(lDigits[fNdigits]) AliPHOSDigit(* newdigit) ; fNdigits++ ; } delete newdigit ; } // Noise induced by the PIN diode of the PbWO crystals Float_t energyandnoise ; for ( i = 0 ; i < fNdigits ; i++ ) { newdigit = (AliPHOSDigit * ) fDigits->At(i) ; fGeom->AbsToRelNumbering(newdigit->GetId(), relid) ; if (relid[1]==0){ // Digits belong to EMC (PbW0_4 crystals) energyandnoise = newdigit->GetAmp() + Digitize(gRandom->Gaus(0., fPinElectronicNoise)) ; if (energyandnoise < 0 ) energyandnoise = 0 ; if ( newdigit->GetAmp() < fDigitThreshold ) // if threshold not surpassed, remove digit from list fDigits->RemoveAt(i) ; } } fDigits->Compress() ; fNdigits = fDigits->GetEntries() ; for (i = 0 ; i < fNdigits ; i++) { newdigit = (AliPHOSDigit *) fDigits->At(i) ; newdigit->SetIndexInList(i) ; } } //____________________________________________________________________________ void AliPHOSv0::Init(void) { // Just prints an information message Int_t i; printf("\n"); for(i=0;i<35;i++) printf("*"); printf(" PHOS_INIT "); for(i=0;i<35;i++) printf("*"); printf("\n"); // Here the PHOS initialisation code (if any!) for(i=0;i<80;i++) printf("*"); printf("\n"); } //___________________________________________________________________________ void AliPHOSv0::MakeBranch(Option_t* opt) { // Create new branche in the current Root Tree in the digit Tree AliDetector::MakeBranch(opt) ; char branchname[10]; sprintf(branchname,"%s",GetName()); char *cdD = strstr(opt,"D"); if (fDigits && gAlice->TreeD() && cdD) { gAlice->TreeD()->Branch(branchname, &fDigits, fBufferSize); } } //____________________________________________________________________________ RecPointsList * AliPHOSv0::PpsdRecPoints(Int_t evt) { // returns the pointer to the PPSD RecPoints list // if the list is empty, get it from TreeR on the disk file RecPointsList * rv = 0 ; if ( fPpsdRecPoints ) rv = fPpsdRecPoints ; else { fPpsdRecPoints = new TClonesArray("AliPHOSPpsdRecPoint", 100) ; gAlice->GetEvent(evt) ; TTree * fReconstruct = gAlice->TreeR() ; fReconstruct->SetBranchAddress( "PHOSPpsdRP", &fPpsdRecPoints) ; fReconstruct->GetEvent(0) ; rv = fPpsdRecPoints ; } fPpsdRecPoints->Expand( fPpsdRecPoints->GetEntries() ) ; return rv ; } //_____________________________________________________________________________ void AliPHOSv0::Reconstruction(AliPHOSReconstructioner * Reconstructioner) { // 1. Reinitializes the existing RecPoint, TrackSegment, and RecParticles Lists and // 2. Creates TreeR wit a branch for each list // 3. Steers the reconstruction processes // 4. Saves the 3 lists in TreeR // 5. Write the Tree to File fReconstructioner = Reconstructioner ; char branchname[10] ; // 1. gAlice->MakeTree("R") ; Int_t splitlevel = 0 ; if (fEmcRecPoints) { fEmcRecPoints->Delete() ; delete fEmcRecPoints ; fEmcRecPoints = 0 ; } // fEmcRecPoints= new RecPointsList("AliPHOSEmcRecPoint", 100) ; if TClonesArray fEmcRecPoints= new RecPointsList(100) ; if ( fEmcRecPoints && gAlice->TreeR() ) { sprintf(branchname,"%sEmcRP",GetName()) ; // gAlice->TreeR()->Branch(branchname, &fEmcRecPoints, fBufferSize); if TClonesArray gAlice->TreeR()->Branch(branchname, "TObjArray", &fEmcRecPoints, fBufferSize, splitlevel) ; } if (fPpsdRecPoints) { fPpsdRecPoints->Delete() ; delete fPpsdRecPoints ; fPpsdRecPoints = 0 ; } // fPpsdRecPoints = new RecPointsList("AliPHOSPpsdRecPoint", 100) ; if TClonesArray fPpsdRecPoints = new RecPointsList(100) ; if ( fPpsdRecPoints && gAlice->TreeR() ) { sprintf(branchname,"%sPpsdRP",GetName()) ; // gAlice->TreeR()->Branch(branchname, &fPpsdRecPoints, fBufferSize); if TClonesArray gAlice->TreeR()->Branch(branchname, "TObjArray", &fPpsdRecPoints, fBufferSize, splitlevel) ; } if (fTrackSegments) { fTrackSegments->Delete() ; delete fTrackSegments ; fTrackSegments = 0 ; } fTrackSegments = new TrackSegmentsList("AliPHOSTrackSegment", 100) ; if ( fTrackSegments && gAlice->TreeR() ) { sprintf(branchname,"%sTS",GetName()) ; gAlice->TreeR()->Branch(branchname, &fTrackSegments, fBufferSize) ; } if (fRecParticles) { fRecParticles->Delete() ; delete fRecParticles ; fRecParticles = 0 ; } fRecParticles = new RecParticlesList("AliPHOSRecParticle", 100) ; if ( fRecParticles && gAlice->TreeR() ) { sprintf(branchname,"%sRP",GetName()) ; gAlice->TreeR()->Branch(branchname, &fRecParticles, fBufferSize) ; } // 3. fReconstructioner->Make(fDigits, fEmcRecPoints, fPpsdRecPoints, fTrackSegments, fRecParticles); // 4. Expand or Shrink the arrays to the proper size Int_t size ; size = fEmcRecPoints->GetEntries() ; fEmcRecPoints->Expand(size) ; size = fPpsdRecPoints->GetEntries() ; fPpsdRecPoints->Expand(size) ; size = fTrackSegments->GetEntries() ; fTrackSegments->Expand(size) ; size = fRecParticles->GetEntries() ; fRecParticles->Expand(size) ; gAlice->TreeR()->Fill() ; // 5. gAlice->TreeR()->Write() ; } //____________________________________________________________________________ void AliPHOSv0::ResetDigits() { // May sound strange, but cumulative hits are store in digits Tree if( fTmpHits ) { fTmpHits->Delete(); fNTmpHits = 0 ; } } //____________________________________________________________________________ void AliPHOSv0::StepManager(void) { // Accumulates hits as long as the track stays in a single crystal or PPSD gas Cell Int_t relid[4] ; // (box, layer, row, column) indices Float_t xyze[4] ; // position wrt MRS and energy deposited TLorentzVector pos ; Int_t copy ; Int_t primary = gAlice->GetPrimary( gAlice->CurrentTrack() ); TString name = fGeom->GetName() ; if ( name == "GPS2" ) { // the CPV is a PPSD if( gMC->CurrentVolID(copy) == gMC->VolId("GCEL") ) // We are inside a gas cell { gMC->TrackPosition(pos) ; xyze[0] = pos[0] ; xyze[1] = pos[1] ; xyze[2] = pos[2] ; xyze[3] = gMC->Edep() ; if ( xyze[3] != 0 ) { // there is deposited energy gMC->CurrentVolOffID(5, relid[0]) ; // get the PHOS Module number gMC->CurrentVolOffID(3, relid[1]) ; // get the Micromegas Module number // 1-> Geom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() upper // > fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() lower gMC->CurrentVolOffID(1, relid[2]) ; // get the row number of the cell gMC->CurrentVolID(relid[3]) ; // get the column number // get the absolute Id number Int_t absid ; fGeom->RelToAbsNumbering(relid, absid) ; // add current hit to the hit list AddHit(primary, absid, xyze); } // there is deposited energy } // We are inside the gas of the CPV } // GPS2 configuration if(gMC->CurrentVolID(copy) == gMC->VolId("PXTL") ) // We are inside a PBWO crystal { gMC->TrackPosition(pos) ; xyze[0] = pos[0] ; xyze[1] = pos[1] ; xyze[2] = pos[2] ; xyze[3] = gMC->Edep() ; if ( xyze[3] != 0 ) { gMC->CurrentVolOffID(10, relid[0]) ; // get the PHOS module number ; relid[1] = 0 ; // means PBW04 gMC->CurrentVolOffID(4, relid[2]) ; // get the row number inside the module gMC->CurrentVolOffID(3, relid[3]) ; // get the cell number inside the module // get the absolute Id number Int_t absid ; fGeom->RelToAbsNumbering(relid, absid) ; // add current hit to the hit list AddHit(primary, absid, xyze); } // there is deposited energy } // we are inside a PHOS Xtal }