[807] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | |
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| 27 | #include "ExN04StackingAction.hh" |
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| 28 | #include "G4SDManager.hh" |
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| 29 | #include "G4RunManager.hh" |
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| 30 | #include "G4Event.hh" |
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| 31 | #include "G4HCofThisEvent.hh" |
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| 32 | #include "G4Track.hh" |
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| 33 | #include "G4TrackStatus.hh" |
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| 34 | #include "G4ParticleDefinition.hh" |
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| 35 | #include "G4ParticleTypes.hh" |
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| 36 | #include "ExN04StackingActionMessenger.hh" |
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| 37 | #include "G4ios.hh" |
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| 38 | |
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| 39 | ExN04StackingAction::ExN04StackingAction() |
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| 40 | : trkHits(0), muonHits(0), stage(0) |
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| 41 | { |
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| 42 | angRoI = 30.0*deg; |
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| 43 | reqMuon = 2; |
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| 44 | reqIso = 10; |
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| 45 | theMessenger = new ExN04StackingActionMessenger(this); |
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| 46 | } |
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| 47 | |
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| 48 | ExN04StackingAction::~ExN04StackingAction() |
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| 49 | { delete theMessenger; } |
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| 50 | |
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| 51 | G4ClassificationOfNewTrack |
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| 52 | ExN04StackingAction::ClassifyNewTrack(const G4Track * aTrack) |
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| 53 | { |
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| 54 | G4ClassificationOfNewTrack classification = fWaiting; |
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| 55 | switch(stage) |
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| 56 | { |
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| 57 | case 0: // Stage 0 : Primary muons only |
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| 58 | if(aTrack->GetParentID()==0) |
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| 59 | { |
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| 60 | G4ParticleDefinition * particleType = aTrack->GetDefinition(); |
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| 61 | if((particleType==G4MuonPlus::MuonPlusDefinition()) |
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| 62 | ||(particleType==G4MuonMinus::MuonMinusDefinition())) |
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| 63 | { classification = fUrgent; } |
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| 64 | } |
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| 65 | break; |
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| 66 | |
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| 67 | case 1: // Stage 1 : Charged primaries only |
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| 68 | // Suspended tracks will be sent to the waiting stack |
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| 69 | if(aTrack->GetParentID()!=0) { break; } |
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| 70 | if(aTrack->GetTrackStatus()==fSuspend) { break; } |
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| 71 | if(aTrack->GetDefinition()->GetPDGCharge()==0.) { break; } |
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| 72 | classification = fUrgent; |
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| 73 | break; |
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| 74 | |
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| 75 | default: // Stage 2 : Accept all primaries |
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| 76 | // Accept all secondaries in RoI |
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| 77 | // Kill secondaries outside RoI |
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| 78 | if(aTrack->GetParentID()==0) |
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| 79 | { |
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| 80 | classification = fUrgent; |
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| 81 | break; |
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| 82 | } |
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| 83 | if((angRoI<0.)||InsideRoI(aTrack,angRoI)) |
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| 84 | { |
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| 85 | classification = fUrgent; |
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| 86 | break; |
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| 87 | } |
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| 88 | classification = fKill; |
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| 89 | } |
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| 90 | return classification; |
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| 91 | } |
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| 92 | |
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| 93 | G4bool ExN04StackingAction::InsideRoI(const G4Track * aTrack,G4double ang) |
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| 94 | { |
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| 95 | if(!muonHits) |
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| 96 | { muonHits = (ExN04MuonHitsCollection*)GetCollection("muonCollection"); } |
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| 97 | if(!muonHits) |
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| 98 | { G4cerr << "muonCollection NOT FOUND" << G4endl; |
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| 99 | return true; } |
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| 100 | |
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| 101 | G4int nhits = muonHits->entries(); |
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| 102 | |
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| 103 | const G4ThreeVector trPos = aTrack->GetPosition(); |
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| 104 | for(G4int i=0;i<nhits;i++) |
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| 105 | { |
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| 106 | G4ThreeVector muHitPos = (*muonHits)[i]->GetPos(); |
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| 107 | G4double angl = muHitPos.angle(trPos); |
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| 108 | if(angl<ang) { return true; } |
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| 109 | } |
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| 110 | |
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| 111 | return false; |
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| 112 | } |
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| 113 | |
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| 114 | G4VHitsCollection* ExN04StackingAction::GetCollection(G4String colName) |
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| 115 | { |
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| 116 | G4SDManager* SDMan = G4SDManager::GetSDMpointer(); |
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| 117 | G4RunManager* runMan = G4RunManager::GetRunManager(); |
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| 118 | int colID = SDMan->GetCollectionID(colName); |
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| 119 | if(colID>=0) |
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| 120 | { |
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| 121 | const G4Event* currentEvent = runMan->GetCurrentEvent(); |
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| 122 | G4HCofThisEvent* HCE = currentEvent->GetHCofThisEvent(); |
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| 123 | return HCE->GetHC(colID); |
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| 124 | } |
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| 125 | return 0; |
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| 126 | } |
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| 127 | |
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| 128 | void ExN04StackingAction::NewStage() |
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| 129 | { |
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| 130 | stage++; |
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| 131 | G4int nhits; |
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| 132 | if(stage==1) |
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| 133 | { |
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| 134 | // Stage 0->1 : check if at least "reqMuon" hits on muon chamber |
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| 135 | // otherwise abort current event |
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| 136 | if(!muonHits) |
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| 137 | { muonHits = (ExN04MuonHitsCollection*)GetCollection("muonCollection"); } |
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| 138 | if(!muonHits) |
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| 139 | { G4cerr << "muonCollection NOT FOUND" << G4endl; |
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| 140 | return; } |
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| 141 | nhits = muonHits->entries(); |
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| 142 | G4cout << "Stage 0->1 : " << nhits << " hits found in the muon chamber." |
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| 143 | << G4endl; |
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| 144 | if(nhits<reqMuon) |
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| 145 | { |
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| 146 | stackManager->clear(); |
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| 147 | G4cout << "++++++++ event aborted" << G4endl; |
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| 148 | return; |
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| 149 | } |
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| 150 | stackManager->ReClassify(); |
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| 151 | return; |
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| 152 | } |
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| 153 | |
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| 154 | else if(stage==2) |
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| 155 | { |
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| 156 | // Stage 1->2 : check the isolation of muon tracks |
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| 157 | // at least "reqIsoMuon" isolated muons |
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| 158 | // otherwise abort current event. |
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| 159 | // Isolation requires "reqIso" or less hits |
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| 160 | // (including own hits) in the RoI region |
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| 161 | // in the tracker layers. |
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| 162 | nhits = muonHits->entries(); |
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| 163 | if(!trkHits) |
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| 164 | { trkHits = (ExN04TrackerHitsCollection*)GetCollection("trackerCollection"); } |
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| 165 | if(!trkHits) |
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| 166 | { G4cerr << "trackerCollection NOT FOUND" << G4endl; |
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| 167 | return; } |
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| 168 | G4int nTrkhits = trkHits->entries(); |
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| 169 | G4int isoMuon = 0; |
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| 170 | for(G4int j=0;j<nhits;j++) |
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| 171 | { |
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| 172 | G4ThreeVector hitPos = (*muonHits)[j]->GetPos(); |
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| 173 | G4int nhitIn = 0; |
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| 174 | for(G4int jj=0;(jj<nTrkhits)&&(nhitIn<=reqIso);jj++) |
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| 175 | { |
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| 176 | G4ThreeVector trkhitPos = (*trkHits)[jj]->GetPos(); |
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| 177 | if(trkhitPos.angle(hitPos)<angRoI) nhitIn++; |
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| 178 | } |
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| 179 | if(nhitIn<=reqIso) isoMuon++; |
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| 180 | } |
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| 181 | G4cout << "Stage 1->2 : " << isoMuon << " isolated muon found." << G4endl; |
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| 182 | if(isoMuon<reqIsoMuon) |
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| 183 | { |
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| 184 | stackManager->clear(); |
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| 185 | G4cout << "++++++++ event aborted" << G4endl; |
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| 186 | return; |
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| 187 | } |
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| 188 | stackManager->ReClassify(); |
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| 189 | return; |
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| 190 | } |
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| 191 | |
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| 192 | else |
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| 193 | { |
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| 194 | // Other stage change : just re-classify |
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| 195 | stackManager->ReClassify(); |
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| 196 | } |
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| 197 | } |
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| 198 | |
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| 199 | void ExN04StackingAction::PrepareNewEvent() |
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| 200 | { |
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| 201 | stage = 0; |
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| 202 | trkHits = 0; |
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| 203 | muonHits = 0; |
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| 204 | } |
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| 205 | |
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| 206 | |
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