[819] | 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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[963] | 27 | // $Id: G4CoupledTransportation.cc,v 1.27 2008/11/26 13:01:28 japost Exp $ |
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[819] | 28 | // --> Merged with 1.60.4.2.2.3 2007/05/09 09:30:28 japost |
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[1228] | 29 | // GEANT4 tag $Name: geant4-09-03 $ |
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[819] | 30 | // ------------------------------------------------------------ |
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| 31 | // GEANT 4 class implementation |
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| 32 | // ======================================================================= |
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| 33 | // Modified: |
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| 34 | // 13 May 2006, J. Apostolakis: Revised for parallel navigation (PathFinder) |
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| 35 | // 19 Jan 2006, P.MoraDeFreitas: Fix for suspended tracks (StartTracking) |
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| 36 | // 11 Aug 2004, M.Asai: Add G4VSensitiveDetector* for updating stepPoint. |
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| 37 | // 21 June 2003, J.Apostolakis: Calling field manager with |
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| 38 | // track, to enable it to configure its accuracy |
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| 39 | // 13 May 2003, J.Apostolakis: Zero field areas now taken into |
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| 40 | // account correclty in all cases (thanks to W Pokorski). |
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| 41 | // 29 June 2001, J.Apostolakis, D.Cote-Ahern, P.Gumplinger: |
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| 42 | // correction for spin tracking |
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| 43 | // 20 Febr 2001, J.Apostolakis: update for new FieldTrack |
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| 44 | // 22 Sept 2000, V.Grichine: update of Kinetic Energy |
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| 45 | // Created: 19 March 1997, J. Apostolakis |
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| 46 | // ======================================================================= |
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| 47 | |
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| 48 | #include "G4CoupledTransportation.hh" |
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| 49 | #include "G4ProductionCutsTable.hh" |
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| 50 | #include "G4ParticleTable.hh" |
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| 51 | #include "G4ChordFinder.hh" |
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| 52 | #include "G4FieldManagerStore.hh" |
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| 53 | class G4VSensitiveDetector; |
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| 54 | |
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| 55 | ////////////////////////////////////////////////////////////////////////// |
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| 56 | // |
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| 57 | // Constructor |
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| 58 | |
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| 59 | G4CoupledTransportation::G4CoupledTransportation( G4int verboseLevel ) |
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| 60 | : G4VProcess( G4String("CoupledTransportation"), fTransportation ), |
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| 61 | fParticleIsLooping( false ), |
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| 62 | fPreviousSftOrigin (0.,0.,0.), |
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| 63 | fPreviousMassSafety ( 0.0 ), |
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| 64 | fPreviousFullSafety ( 0.0 ), |
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| 65 | fThreshold_Warning_Energy( 100 * MeV ), |
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| 66 | fThreshold_Important_Energy( 250 * MeV ), |
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| 67 | fThresholdTrials( 10 ), |
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| 68 | fUnimportant_Energy( 1 * MeV ), |
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| 69 | fNoLooperTrials(0), |
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| 70 | fSumEnergyKilled( 0.0 ), fMaxEnergyKilled( 0.0 ), |
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| 71 | fVerboseLevel(verboseLevel) // ( verboseLevel ? verboseLevel : 2 ) // or 4 |
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| 72 | { |
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| 73 | G4TransportationManager* transportMgr ; |
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| 74 | |
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| 75 | transportMgr = G4TransportationManager::GetTransportationManager() ; |
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| 76 | |
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| 77 | fMassNavigator = transportMgr->GetNavigatorForTracking() ; |
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| 78 | fFieldPropagator = transportMgr->GetPropagatorInField() ; |
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| 79 | // fGlobalFieldMgr = transportMgr->GetFieldManager() ; |
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| 80 | fNavigatorId= transportMgr->ActivateNavigator( fMassNavigator ); |
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| 81 | if( fVerboseLevel > 0 ){ |
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| 82 | G4cout << " G4CoupledTransportation constructor: ----- " << G4endl; |
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| 83 | G4cout << " Verbose level is " << fVerboseLevel << G4endl; |
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| 84 | G4cout << " Navigator Id obtained in G4CoupledTransportation constructor " |
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| 85 | << fNavigatorId << G4endl; |
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| 86 | } |
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| 87 | fPathFinder= G4PathFinder::GetInstance(); |
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[963] | 88 | fpSafetyHelper = transportMgr->GetSafetyHelper(); // New |
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[819] | 89 | |
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| 90 | // Following assignment is to fix small memory leak from simple use of 'new' |
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| 91 | static G4TouchableHandle nullTouchableHandle; // Points to (G4VTouchable*) 0 |
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| 92 | fCurrentTouchableHandle = nullTouchableHandle; |
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| 93 | // fCurrentTouchableHandle = G4TouchableHandle( 0 ); // new G4TouchableHistory(); |
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| 94 | |
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| 95 | fEndGlobalTimeComputed = false; |
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| 96 | fCandidateEndGlobalTime = 0; |
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| 97 | } |
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| 98 | |
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| 99 | ////////////////////////////////////////////////////////////////////////// |
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| 100 | |
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| 101 | G4CoupledTransportation::~G4CoupledTransportation() |
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| 102 | { |
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| 103 | // fCurrentTouchableHandle is a data member - no deletion required |
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| 104 | |
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| 105 | if( (fVerboseLevel > 0) || (fSumEnergyKilled > 0.0 ) ){ |
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| 106 | G4cout << " G4CoupledTransportation: Statistics for looping particles " << G4endl; |
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| 107 | G4cout << " Sum of energy of loopers killed: " << fSumEnergyKilled << G4endl; |
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| 108 | G4cout << " Max energy of loopers killed: " << fMaxEnergyKilled << G4endl; |
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| 109 | } |
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| 110 | } |
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| 111 | |
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| 112 | ////////////////////////////////////////////////////////////////////////// |
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| 113 | // |
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| 114 | // Responsibilities: |
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| 115 | // Find whether the geometry limits the Step, and to what length |
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| 116 | // Calculate the new value of the safety and return it. |
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| 117 | // Store the final time, position and momentum. |
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| 118 | |
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| 119 | G4double G4CoupledTransportation:: |
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| 120 | AlongStepGetPhysicalInteractionLength( const G4Track& track, |
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| 121 | G4double, // previousStepSize |
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| 122 | G4double currentMinimumStep, |
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| 123 | G4double& proposedSafetyForStart, |
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| 124 | G4GPILSelection* selection ) |
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| 125 | { |
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| 126 | G4double geometryStepLength; |
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| 127 | G4double startMassSafety= 0.0; // estimated safety for start point (mass geometry) |
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| 128 | G4double startFullSafety= 0.0; // estimated safety for start point (all geometries) |
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| 129 | G4double safetyProposal= -1.0; // local copy of proposal |
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| 130 | |
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| 131 | G4ThreeVector EndUnitMomentum ; |
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| 132 | G4double lengthAlongCurve=0.0 ; |
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| 133 | |
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| 134 | fParticleIsLooping = false ; |
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| 135 | |
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| 136 | // Initial actions moved to StartTrack() |
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| 137 | // -------------------------------------- |
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| 138 | // Note: in case another process changes touchable handle |
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| 139 | // it will be necessary to add here (for all steps) |
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| 140 | // fCurrentTouchableHandle = aTrack->GetTouchableHandle(); |
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| 141 | |
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| 142 | // GPILSelection is set to defaule value of CandidateForSelection |
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| 143 | // It is a return value |
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| 144 | // |
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| 145 | *selection = CandidateForSelection ; |
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| 146 | |
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| 147 | // Get initial Energy/Momentum of the track |
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| 148 | // |
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| 149 | const G4DynamicParticle* pParticle = track.GetDynamicParticle() ; |
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| 150 | const G4ParticleDefinition* pParticleDef = pParticle->GetDefinition() ; |
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| 151 | G4ThreeVector startMomentumDir = pParticle->GetMomentumDirection() ; |
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| 152 | G4ThreeVector startPosition = track.GetPosition() ; |
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| 153 | G4VPhysicalVolume* currentVolume= track.GetVolume(); |
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| 154 | |
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| 155 | #ifdef G4DEBUG_TRANSPORT |
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| 156 | if( fVerboseLevel > 1 ) { |
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| 157 | G4cout << "G4CoupledTransportation::AlongStepGPIL> called in volume " |
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| 158 | << currentVolume->GetName() << G4endl; |
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| 159 | } |
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| 160 | #endif |
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| 161 | // G4double theTime = track.GetGlobalTime() ; |
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| 162 | |
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| 163 | // The Step Point safety can be limited by other geometries and/or the |
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| 164 | // assumptions of any process - it's not always the geometrical safety. |
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| 165 | // We calculate the starting point's isotropic safety here. |
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| 166 | // |
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| 167 | G4ThreeVector OriginShift = startPosition - fPreviousSftOrigin ; |
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| 168 | G4double MagSqShift = OriginShift.mag2() ; |
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| 169 | startMassSafety = 0.0; |
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| 170 | startFullSafety= 0.0; |
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| 171 | |
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| 172 | // Recall that FullSafety <= MassSafety |
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| 173 | // Original: if( MagSqShift < sqr(fPreviousMassSafety) ) { |
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| 174 | if( MagSqShift < sqr(fPreviousFullSafety) ) { // Revision proposed by Alex H, 2 Oct 07 |
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| 175 | G4double mag_shift= std::sqrt(MagSqShift); |
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| 176 | startMassSafety = std::max( (fPreviousMassSafety - mag_shift), 0.0); |
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| 177 | startFullSafety = std::max( (fPreviousFullSafety - mag_shift), 0.0); |
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| 178 | // Need to be consistent between full safety with Mass safety |
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| 179 | // in order reproduce results in simple case --> use same calculation method |
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| 180 | |
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| 181 | // Only compute full safety if massSafety > 0. Else it remains 0 |
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| 182 | // startFullSafety = fPathFinder->ComputeSafety( startPosition ); |
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| 183 | } |
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| 184 | |
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| 185 | // Is the particle charged ? |
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| 186 | // |
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| 187 | G4double particleCharge = pParticle->GetCharge() ; |
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| 188 | |
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| 189 | fMassGeometryLimitedStep = false ; // Set default - alex |
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| 190 | fAnyGeometryLimitedStep = false; |
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| 191 | |
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| 192 | // fEndGlobalTimeComputed = false ; |
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| 193 | |
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| 194 | // There is no need to locate the current volume. It is Done elsewhere: |
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| 195 | // On track construction |
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| 196 | // By the tracking, after all AlongStepDoIts, in "Relocation" |
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| 197 | // Check whether the particle has an (EM) field force exerted upon it |
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| 198 | // |
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| 199 | G4FieldManager* fieldMgr=0; |
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| 200 | G4bool fieldExertsForce = false; |
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| 201 | if( (particleCharge != 0.0) ) // || (magneticMoment != 0.0 ) ) |
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| 202 | { |
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| 203 | fieldMgr= fFieldPropagator->FindAndSetFieldManager( currentVolume ); |
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| 204 | if (fieldMgr != 0) { |
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| 205 | // Message the field Manager, to configure it for this track |
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| 206 | fieldMgr->ConfigureForTrack( &track ); |
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| 207 | fieldExertsForce = (fieldMgr->GetDetectorField() != 0); |
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| 208 | } |
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| 209 | // the PathFinder will recognise whether the field exerts force |
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| 210 | } |
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| 211 | G4double momentumMagnitude = pParticle->GetTotalMomentum() ; |
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| 212 | G4double restMass = pParticleDef->GetPDGMass() ; |
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| 213 | |
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| 214 | fFieldPropagator->SetChargeMomentumMass( particleCharge, // in e+ units |
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| 215 | momentumMagnitude, // in Mev/c |
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| 216 | restMass ) ; |
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| 217 | // This should be obsolete - the call to SetChargeAndMoments below should do the work |
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| 218 | |
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| 219 | G4ThreeVector spin = track.GetPolarization() ; |
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| 220 | G4FieldTrack theFieldTrack = G4FieldTrack( startPosition, |
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| 221 | track.GetMomentumDirection(), |
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| 222 | 0.0, |
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| 223 | track.GetKineticEnergy(), |
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| 224 | restMass, |
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| 225 | 0.0, // UNUSED: track.GetVelocity(), |
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| 226 | track.GetGlobalTime(), // Lab. |
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| 227 | track.GetProperTime(), // Part. |
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| 228 | &spin ) ; |
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| 229 | theFieldTrack.SetChargeAndMoments( particleCharge ); // EM moments -- future extension |
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| 230 | |
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| 231 | G4int stepNo= track.GetCurrentStepNumber(); |
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| 232 | |
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| 233 | ELimited limitedStep; |
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| 234 | G4FieldTrack endTrackState('a'); // Default values |
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| 235 | |
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| 236 | fMassGeometryLimitedStep = false ; // default |
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| 237 | fAnyGeometryLimitedStep = false ; |
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| 238 | if( currentMinimumStep > 0 ) { |
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| 239 | G4double newMassSafety= 0.0; // temp. for recalculation |
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| 240 | |
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| 241 | // Do the Transport in the field (non recti-linear) |
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| 242 | // |
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| 243 | lengthAlongCurve = fPathFinder->ComputeStep( theFieldTrack, |
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| 244 | currentMinimumStep, |
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| 245 | fNavigatorId, |
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| 246 | stepNo, |
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| 247 | newMassSafety, |
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| 248 | limitedStep, |
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| 249 | endTrackState, |
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| 250 | currentVolume ) ; |
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| 251 | // G4cout << " PathFinder ComputeStep returns " << lengthAlongCurve << G4endl; |
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| 252 | |
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| 253 | G4double newFullSafety= fPathFinder->GetCurrentSafety(); |
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| 254 | // this was estimated already in step above |
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| 255 | // G4double newFullStep= fPathFinder->GetMinimumStep(); |
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| 256 | |
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| 257 | if( limitedStep == kUnique || limitedStep == kSharedTransport ) { |
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| 258 | fMassGeometryLimitedStep = true ; |
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| 259 | } |
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| 260 | |
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| 261 | fAnyGeometryLimitedStep = (fPathFinder->GetNumberGeometriesLimitingStep() != 0); |
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| 262 | |
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| 263 | // #ifdef G4DEBUG |
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| 264 | if( fMassGeometryLimitedStep && !fAnyGeometryLimitedStep ){ |
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| 265 | G4cerr << " Error in determining geometries limiting the step" << G4endl; |
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| 266 | G4cerr << " Limiting: mass=" << fMassGeometryLimitedStep |
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| 267 | << " any= " << fAnyGeometryLimitedStep << G4endl; |
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| 268 | G4Exception("G4CoupledTransportation::AlongStepGetPhysicalInteractionLength()", |
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| 269 | "PathFinderConfused", |
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| 270 | FatalException, |
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| 271 | "Incompatible conditions - was limited by a geometry?"); |
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| 272 | } |
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| 273 | // #endif |
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| 274 | |
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| 275 | // Other potential |
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| 276 | // fAnyGeometryLimitedStep = newFullStep < currentMinimumStep; |
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| 277 | // ^^^ Not good enough; |
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| 278 | // Must compare with maximum requested step size |
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| 279 | // (eg in case another process requested bigger, got this!) |
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| 280 | |
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| 281 | geometryStepLength = std::min( lengthAlongCurve, currentMinimumStep); |
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| 282 | |
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| 283 | // Momentum: Magnitude and direction can be changed too now ... |
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| 284 | // |
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| 285 | fMomentumChanged = true ; |
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| 286 | fTransportEndMomentumDir = endTrackState.GetMomentumDir() ; |
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| 287 | |
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| 288 | // Remember last safety origin & value. |
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| 289 | fPreviousSftOrigin = startPosition ; |
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| 290 | fPreviousMassSafety = newMassSafety ; |
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| 291 | fPreviousFullSafety = newFullSafety ; |
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[963] | 292 | // fpSafetyHelper->SetCurrentSafety( newFullSafety, startPosition); |
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[819] | 293 | |
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| 294 | #ifdef G4DEBUG_TRANSPORT |
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| 295 | if( fVerboseLevel > 1 ){ |
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| 296 | G4cout << "G4Transport:CompStep> " |
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| 297 | << " called the pathfinder for a new step at " << startPosition |
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| 298 | << " and obtained step = " << lengthAlongCurve << G4endl; |
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| 299 | G4cout << " New safety (preStep) = " << newMassSafety |
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| 300 | << " versus precalculated = " << startMassSafety << G4endl; |
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| 301 | } |
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| 302 | #endif |
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| 303 | |
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| 304 | // Store as best estimate value |
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| 305 | startMassSafety = newMassSafety ; |
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| 306 | startFullSafety = newFullSafety ; |
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| 307 | |
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| 308 | // Get the End-Position and End-Momentum (Dir-ection) |
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| 309 | fTransportEndPosition = endTrackState.GetPosition() ; |
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| 310 | fTransportEndKineticEnergy = endTrackState.GetKineticEnergy() ; |
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| 311 | } else { |
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| 312 | geometryStepLength = lengthAlongCurve= 0.0 ; |
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| 313 | fMomentumChanged = false ; |
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| 314 | // fMassGeometryLimitedStep = false ; // --- ??? |
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| 315 | // fAnyGeometryLimitedStep = true; |
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| 316 | fTransportEndMomentumDir = track.GetMomentumDirection(); |
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| 317 | fTransportEndKineticEnergy = track.GetKineticEnergy(); |
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| 318 | |
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| 319 | fTransportEndPosition = startPosition; |
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| 320 | // If the step length requested is 0, and we are on a boundary |
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| 321 | // then a boundary will also limit the step. |
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| 322 | if( startMassSafety == 0.0 ) { |
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| 323 | fMassGeometryLimitedStep = true ; |
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| 324 | fAnyGeometryLimitedStep = true; |
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| 325 | } |
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| 326 | // TODO: Add explicit logical status for being at a boundary |
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| 327 | } |
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| 328 | // G4FieldTrack aTrackState(endTrackState); |
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| 329 | |
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| 330 | if( !fieldExertsForce ) |
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| 331 | { |
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| 332 | fParticleIsLooping = false ; |
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| 333 | fMomentumChanged = false ; |
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| 334 | fEndGlobalTimeComputed = false ; |
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| 335 | // G4cout << " global time is false " << G4endl; |
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| 336 | } |
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| 337 | else |
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| 338 | { |
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| 339 | |
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| 340 | #ifdef G4DEBUG_TRANSPORT |
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| 341 | if( fVerboseLevel > 1 ){ |
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| 342 | G4cout << " G4CT::CS End Position = " << fTransportEndPosition << G4endl; |
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| 343 | G4cout << " G4CT::CS End Direction = " << fTransportEndMomentumDir << G4endl; |
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| 344 | } |
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| 345 | #endif |
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| 346 | // G4cout << " G4CoupledTransportation Before if change energy statement: " << fFieldPropagator->GetCurrentFieldManager()->DoesFieldChangeEnergy() << G4endl; |
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| 347 | if( fFieldPropagator->GetCurrentFieldManager()->DoesFieldChangeEnergy() ) |
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| 348 | { |
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| 349 | // If the field can change energy, then the time must be integrated |
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| 350 | // - so this should have been updated |
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| 351 | // |
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| 352 | fCandidateEndGlobalTime = endTrackState.GetLabTimeOfFlight(); |
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| 353 | fEndGlobalTimeComputed = true; |
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| 354 | // G4cout << " setting global time to true - why? " << G4endl; |
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| 355 | |
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| 356 | // was ( fCandidateEndGlobalTime != track.GetGlobalTime() ); |
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| 357 | // a cleaner way is to have FieldTrack knowing whether time is updated. |
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| 358 | } |
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| 359 | else |
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| 360 | { |
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| 361 | // The energy should be unchanged by field transport, |
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| 362 | // - so the time changed will be calculated elsewhere |
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| 363 | // |
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| 364 | fEndGlobalTimeComputed = false; |
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| 365 | |
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| 366 | // Check that the integration preserved the energy |
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| 367 | // - and if not correct this! |
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| 368 | G4double startEnergy= track.GetKineticEnergy(); |
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| 369 | G4double endEnergy= fTransportEndKineticEnergy; |
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| 370 | |
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| 371 | static G4int no_inexact_steps=0; // , no_large_ediff; |
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| 372 | G4double absEdiff = std::fabs(startEnergy- endEnergy); |
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| 373 | if( absEdiff > perMillion * endEnergy ) { |
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| 374 | no_inexact_steps++; |
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| 375 | // Possible statistics keeping here ... |
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| 376 | } |
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| 377 | #ifdef G4VERBOSE |
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| 378 | if( (fVerboseLevel > 1) && ( absEdiff > perThousand * endEnergy) ){ |
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| 379 | ReportInexactEnergy(startEnergy, endEnergy); |
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| 380 | } // end of if (fVerboseLevel) |
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| 381 | #endif |
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| 382 | |
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| 383 | // Correct the energy for fields that conserve it |
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| 384 | // This - hides the integration error |
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| 385 | // - but gives a better physical answer |
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| 386 | fTransportEndKineticEnergy= track.GetKineticEnergy(); |
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| 387 | } |
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| 388 | } |
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| 389 | |
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| 390 | endpointDistance = (fTransportEndPosition - startPosition).mag() ; |
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| 391 | fParticleIsLooping = fFieldPropagator->IsParticleLooping() ; |
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| 392 | |
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| 393 | fTransportEndSpin = endTrackState.GetSpin(); |
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| 394 | |
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| 395 | // Calculate the safety |
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| 396 | safetyProposal= startFullSafety; // used to be startMassSafety |
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| 397 | // Changed to accomodate processes that cannot update the safety -- JA 22 Nov 06 |
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| 398 | |
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| 399 | // Update safety for the end-point, if becomes negative at the end-point. |
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[963] | 400 | |
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| 401 | if( (startFullSafety < endpointDistance ) |
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| 402 | && ( particleCharge != 0.0 ) ) // Only needed to prepare for Mult Scat. |
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| 403 | // && !fAnyGeometryLimitedStep ) // To-Try: No safety update if at a boundary |
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[819] | 404 | { |
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| 405 | G4double endFullSafety = |
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| 406 | fPathFinder->ComputeSafety( fTransportEndPosition); |
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| 407 | // Expected mission -- only mass geometry's safety |
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| 408 | // fMassNavigator->ComputeSafety( fTransportEndPosition) ; |
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| 409 | // Yet discrete processes only have poststep -- and this cannot |
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| 410 | // currently revise the safety |
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| 411 | // ==> so we use the all-geometry safety as a precaution |
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| 412 | |
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[963] | 413 | fpSafetyHelper->SetCurrentSafety( endFullSafety, fTransportEndPosition); |
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| 414 | // Pushing safety to Helper avoids recalculation at this point |
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| 415 | |
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[819] | 416 | G4ThreeVector centerPt= G4ThreeVector(0.0, 0.0, 0.0); // Used for return value |
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| 417 | G4double endMassSafety= fPathFinder->ObtainSafety( fNavigatorId, centerPt); |
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| 418 | // Retrieves the mass value from PathFinder (it calculated it) |
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| 419 | |
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| 420 | fPreviousMassSafety = endMassSafety ; |
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| 421 | fPreviousFullSafety = endFullSafety; |
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| 422 | fPreviousSftOrigin = fTransportEndPosition ; |
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| 423 | |
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| 424 | // The convention (Stepping Manager's) is safety from the start point |
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| 425 | // |
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| 426 | safetyProposal = endFullSafety + endpointDistance; |
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| 427 | // --> was endMassSafety |
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| 428 | // Changed to accomodate processes that cannot update the safety -- JA 22 Nov 06 |
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| 429 | |
---|
| 430 | // #define G4DEBUG_TRANSPORT 1 |
---|
| 431 | |
---|
| 432 | #ifdef G4DEBUG_TRANSPORT |
---|
| 433 | int prec= G4cout.precision(12) ; |
---|
| 434 | G4cout << "***Transportation::AlongStepGPIL ** " << G4endl ; |
---|
| 435 | G4cout << " Revised Safety at endpoint " << fTransportEndPosition |
---|
| 436 | << " give safety values: Mass= " << endMassSafety |
---|
| 437 | << " All= " << endFullSafety << G4endl ; |
---|
| 438 | G4cout << " Adding endpoint distance " << endpointDistance |
---|
| 439 | << " to obtain pseudo-safety= " << safetyProposal << G4endl ; |
---|
| 440 | G4cout.precision(prec); |
---|
| 441 | } |
---|
| 442 | else{ |
---|
| 443 | int prec= G4cout.precision(12) ; |
---|
| 444 | G4cout << "***Transportation::AlongStepGPIL ** " << G4endl ; |
---|
| 445 | G4cout << " Quick Safety estimate at endpoint " << fTransportEndPosition |
---|
| 446 | << " gives safety endpoint value = " << startFullSafety - endpointDistance |
---|
| 447 | << " using start-point value " << startFullSafety |
---|
| 448 | << " and endpointDistance " << endpointDistance << G4endl; |
---|
| 449 | G4cout.precision(prec); |
---|
| 450 | #endif |
---|
| 451 | } |
---|
| 452 | |
---|
| 453 | proposedSafetyForStart= safetyProposal; |
---|
| 454 | fParticleChange.ProposeTrueStepLength(geometryStepLength) ; |
---|
| 455 | |
---|
| 456 | return geometryStepLength ; |
---|
| 457 | } |
---|
| 458 | |
---|
| 459 | ////////////////////////////////////////////////////////////////////////// |
---|
| 460 | |
---|
| 461 | G4VParticleChange* G4CoupledTransportation::AlongStepDoIt( const G4Track& track, |
---|
| 462 | const G4Step& stepData ) |
---|
| 463 | { |
---|
| 464 | static G4int noCalls=0; |
---|
| 465 | static const G4ParticleDefinition* fOpticalPhoton = |
---|
| 466 | G4ParticleTable::GetParticleTable()->FindParticle("opticalphoton"); |
---|
| 467 | |
---|
| 468 | noCalls++; |
---|
| 469 | |
---|
| 470 | fParticleChange.Initialize(track) ; |
---|
| 471 | // sets all its members to the value of corresponding members in G4Track |
---|
| 472 | |
---|
| 473 | // Code specific for Transport |
---|
| 474 | // |
---|
| 475 | fParticleChange.ProposePosition(fTransportEndPosition) ; |
---|
| 476 | // G4cout << " G4CoupledTransportation::AlongStepDoIt" |
---|
| 477 | // << " proposes position = " << fTransportEndPosition |
---|
| 478 | // << " and end momentum direction = " << fTransportEndMomentumDir << G4endl; |
---|
| 479 | fParticleChange.ProposeMomentumDirection(fTransportEndMomentumDir) ; |
---|
| 480 | fParticleChange.ProposeEnergy(fTransportEndKineticEnergy) ; |
---|
| 481 | fParticleChange.SetMomentumChanged(fMomentumChanged) ; |
---|
| 482 | |
---|
| 483 | fParticleChange.ProposePolarization(fTransportEndSpin); |
---|
| 484 | |
---|
| 485 | G4double deltaTime = 0.0 ; |
---|
| 486 | |
---|
| 487 | // Calculate Lab Time of Flight (ONLY if field Equations used it!) |
---|
| 488 | // G4double endTime = fCandidateEndGlobalTime; |
---|
| 489 | // G4double delta_time = endTime - startTime; |
---|
| 490 | |
---|
| 491 | G4double startTime = track.GetGlobalTime() ; |
---|
| 492 | |
---|
| 493 | if (!fEndGlobalTimeComputed) |
---|
| 494 | { |
---|
| 495 | G4double finalInverseVel= DBL_MAX, initialInverseVel=DBL_MAX; |
---|
| 496 | |
---|
| 497 | // The time was not integrated .. make the best estimate possible |
---|
| 498 | // |
---|
| 499 | G4double finalVelocity = track.GetVelocity() ; |
---|
| 500 | if( finalVelocity > 0.0 ) { finalInverseVel= 1.0 / finalVelocity; } |
---|
| 501 | G4double initialVelocity = stepData.GetPreStepPoint()->GetVelocity() ; |
---|
| 502 | if( initialVelocity > 0.0 ) { initialInverseVel= 1.0 / initialVelocity; } |
---|
| 503 | G4double stepLength = track.GetStepLength() ; |
---|
| 504 | |
---|
| 505 | const G4DynamicParticle* fpDynamicParticle = track.GetDynamicParticle(); |
---|
| 506 | if (fpDynamicParticle->GetDefinition()== fOpticalPhoton) |
---|
| 507 | { |
---|
| 508 | // A photon is in the medium of the final point |
---|
| 509 | // during the step, so Peter says it has the final velocity. |
---|
| 510 | deltaTime = stepLength * finalInverseVel ; |
---|
| 511 | // G4cout << " dt = s / finalV " << " s = " << stepLength |
---|
| 512 | // << " 1 / finalV= " << finalInverseVel << G4endl; |
---|
| 513 | } |
---|
| 514 | else if (finalVelocity > 0.0) |
---|
| 515 | { |
---|
| 516 | // deltaTime = stepLength/finalVelocity ; |
---|
| 517 | G4double meanInverseVelocity = 0.5 * ( initialInverseVel + finalInverseVel ); |
---|
| 518 | deltaTime = stepLength * meanInverseVelocity ; |
---|
| 519 | // G4cout << " dt = s * mean(1/v) , with " << " s = " << stepLength |
---|
| 520 | // << " mean(1/v)= " << meanInverseVelocity << G4endl; |
---|
| 521 | } |
---|
| 522 | else |
---|
| 523 | { |
---|
| 524 | deltaTime = stepLength * initialInverseVel ; |
---|
| 525 | // G4cout << " dt = s / initV " << " s = " << stepLength |
---|
| 526 | // << " 1 / initV= " << initialInverseVel << G4endl; |
---|
| 527 | } // Could do with better estimate for final step (finalVelocity = 0) ? |
---|
| 528 | |
---|
| 529 | fCandidateEndGlobalTime = startTime + deltaTime ; |
---|
| 530 | |
---|
| 531 | // G4cout << " Calculated global time from start = " << startTime << " and " |
---|
| 532 | // << " delta time = " << deltaTime << G4endl; |
---|
| 533 | } |
---|
| 534 | else |
---|
| 535 | { |
---|
| 536 | deltaTime = fCandidateEndGlobalTime - startTime ; |
---|
| 537 | // G4cout << " Calculated global time from candidate end time = " |
---|
| 538 | // << fCandidateEndGlobalTime << " and start time = " << startTime << G4endl; |
---|
| 539 | } |
---|
| 540 | |
---|
| 541 | // G4cout << " G4CoupledTransportation::AlongStepDoIt " |
---|
| 542 | // << " flag whether computed time = " << fEndGlobalTimeComputed << " and " |
---|
| 543 | // << " is proposes end time " << fCandidateEndGlobalTime << G4endl; |
---|
| 544 | fParticleChange.ProposeGlobalTime( fCandidateEndGlobalTime ) ; |
---|
| 545 | |
---|
| 546 | // Now Correct by Lorentz factor to get "proper" deltaTime |
---|
| 547 | |
---|
| 548 | G4double restMass = track.GetDynamicParticle()->GetMass() ; |
---|
| 549 | G4double deltaProperTime = deltaTime*( restMass/track.GetTotalEnergy() ) ; |
---|
| 550 | |
---|
| 551 | fParticleChange.ProposeProperTime(track.GetProperTime() + deltaProperTime) ; |
---|
| 552 | //fParticleChange. ProposeTrueStepLength( track.GetStepLength() ) ; |
---|
| 553 | |
---|
| 554 | // If the particle is caught looping or is stuck (in very difficult |
---|
| 555 | // boundaries) in a magnetic field (doing many steps) |
---|
| 556 | // THEN this kills it ... |
---|
| 557 | // |
---|
| 558 | if ( fParticleIsLooping ) |
---|
| 559 | { |
---|
| 560 | G4double endEnergy= fTransportEndKineticEnergy; |
---|
| 561 | |
---|
| 562 | if( (endEnergy < fThreshold_Important_Energy) |
---|
| 563 | || (fNoLooperTrials >= fThresholdTrials ) ){ |
---|
| 564 | // Kill the looping particle |
---|
| 565 | // |
---|
| 566 | fParticleChange.ProposeTrackStatus( fStopAndKill ) ; |
---|
| 567 | |
---|
| 568 | // 'Bare' statistics |
---|
| 569 | fSumEnergyKilled += endEnergy; |
---|
| 570 | if( endEnergy > fMaxEnergyKilled) { fMaxEnergyKilled= endEnergy; } |
---|
| 571 | |
---|
| 572 | #ifdef G4VERBOSE |
---|
| 573 | if( (fVerboseLevel > 1) || |
---|
| 574 | ( endEnergy > fThreshold_Warning_Energy ) ) { |
---|
| 575 | G4cout << " G4CoupledTransportation is killing track that is looping or stuck " << G4endl |
---|
| 576 | << " This track has " << track.GetKineticEnergy() / MeV |
---|
| 577 | << " MeV energy." << G4endl; |
---|
| 578 | } |
---|
| 579 | if( fVerboseLevel > 0 ) { |
---|
| 580 | G4cout << " Steps by this track: " << track.GetCurrentStepNumber() << G4endl; |
---|
| 581 | } |
---|
| 582 | #endif |
---|
| 583 | fNoLooperTrials=0; |
---|
| 584 | } else{ |
---|
| 585 | fNoLooperTrials ++; |
---|
| 586 | #ifdef G4VERBOSE |
---|
| 587 | if( (fVerboseLevel > 2) ){ |
---|
| 588 | G4cout << " ** G4CoupledTransportation::AlongStepDoIt(): Particle looping - " << G4endl |
---|
| 589 | << " Number of consecutive problem step (this track) = " << fNoLooperTrials << G4endl |
---|
| 590 | << " Steps by this track: " << track.GetCurrentStepNumber() << G4endl |
---|
| 591 | << " Total no of calls to this method (all tracks) = " << noCalls << G4endl; |
---|
| 592 | } |
---|
| 593 | #endif |
---|
| 594 | } |
---|
| 595 | }else{ |
---|
| 596 | fNoLooperTrials=0; |
---|
| 597 | } |
---|
| 598 | |
---|
| 599 | // Another (sometimes better way) is to use a user-limit maximum Step size |
---|
| 600 | // to alleviate this problem .. |
---|
| 601 | |
---|
| 602 | // Add smooth curved trajectories to particle-change |
---|
| 603 | // |
---|
| 604 | // fParticleChange.SetPointerToVectorOfAuxiliaryPoints |
---|
| 605 | // (fFieldPropagator->GimmeTrajectoryVectorAndForgetIt() ); |
---|
| 606 | |
---|
| 607 | return &fParticleChange ; |
---|
| 608 | } |
---|
| 609 | |
---|
| 610 | ////////////////////////////////////////////////////////////////////////// |
---|
| 611 | // |
---|
| 612 | // This ensures that the PostStep action is always called, |
---|
| 613 | // so that it can do the relocation if it is needed. |
---|
| 614 | // |
---|
| 615 | |
---|
| 616 | G4double G4CoupledTransportation:: |
---|
| 617 | PostStepGetPhysicalInteractionLength( const G4Track&, |
---|
| 618 | G4double, // previousStepSize |
---|
| 619 | G4ForceCondition* pForceCond ) |
---|
| 620 | { |
---|
| 621 | // Must act as PostStep action -- to relocate particle |
---|
| 622 | *pForceCond = Forced ; |
---|
| 623 | return DBL_MAX ; |
---|
| 624 | } |
---|
| 625 | |
---|
| 626 | static |
---|
| 627 | void ReportMove( G4ThreeVector OldVector, G4ThreeVector NewVector, G4String& Quantity ) |
---|
| 628 | { |
---|
| 629 | G4ThreeVector moveVec = ( NewVector - OldVector ); |
---|
| 630 | |
---|
| 631 | G4cerr << G4endl |
---|
| 632 | << "**************************************************************" << G4endl; |
---|
| 633 | G4cerr << "Endpoint has moved between value expected from TransportEndPosition " |
---|
| 634 | << " and value from Track in PostStepDoIt. " << G4endl |
---|
| 635 | << "Change of " << Quantity << " is " << moveVec.mag() / mm << " mm long, " |
---|
| 636 | << " and its vector is " << (1.0/mm) * moveVec << " mm " << G4endl |
---|
| 637 | << "Endpoint of ComputeStep was " << OldVector |
---|
| 638 | << " and current position to locate is " << NewVector << G4endl; |
---|
| 639 | } |
---|
| 640 | |
---|
| 641 | ///////////////////////////////////////////////////////////////////////////// |
---|
| 642 | |
---|
| 643 | G4VParticleChange* G4CoupledTransportation::PostStepDoIt( const G4Track& track, |
---|
| 644 | const G4Step& ) |
---|
| 645 | { |
---|
| 646 | G4TouchableHandle retCurrentTouchable ; // The one to return |
---|
| 647 | |
---|
| 648 | // Initialize ParticleChange (by setting all its members equal |
---|
| 649 | // to corresponding members in G4Track) |
---|
| 650 | // fParticleChange.Initialize(track) ; // To initialise TouchableChange |
---|
| 651 | |
---|
| 652 | fParticleChange.ProposeTrackStatus(track.GetTrackStatus()) ; |
---|
| 653 | |
---|
| 654 | // Check that the end position and direction are preserved |
---|
| 655 | // since call to AlongStepDoIt |
---|
| 656 | if( (fTransportEndPosition - track.GetPosition()).mag2() >= 1.0e-16 ){ |
---|
| 657 | static G4String EndLabelString("End of Step Position"); |
---|
| 658 | ReportMove( track.GetPosition(), fTransportEndPosition, EndLabelString ); |
---|
| 659 | G4cerr << " Problem in G4CoupledTransportation::PostStepDoIt " << G4endl; |
---|
| 660 | } |
---|
| 661 | |
---|
| 662 | // If the Step was determined by the volume boundary, relocate the particle |
---|
| 663 | // The pathFinder will know that the geometry limited the step (!?) |
---|
| 664 | |
---|
| 665 | if( fVerboseLevel > 0 ){ |
---|
| 666 | G4cout << " Calling PathFinder::Locate() from " |
---|
| 667 | << " G4CoupledTransportation::PostStepDoIt " << G4endl; |
---|
| 668 | G4cout << " fAnyGeometryLimitedStep is " << fAnyGeometryLimitedStep << G4endl; |
---|
| 669 | |
---|
| 670 | } |
---|
| 671 | if(fAnyGeometryLimitedStep) |
---|
| 672 | { |
---|
| 673 | fPathFinder->Locate( track.GetPosition(), |
---|
| 674 | track.GetMomentumDirection(), |
---|
| 675 | true); |
---|
| 676 | |
---|
| 677 | // fCurrentTouchable will now become the previous touchable, |
---|
| 678 | // and what was the previous will be freed. |
---|
| 679 | // (Needed because the preStepPoint can point to the previous touchable) |
---|
| 680 | if( fVerboseLevel > 0 ) |
---|
| 681 | G4cout << "G4CoupledTransportation::PostStepDoIt --- fNavigatorId = " |
---|
| 682 | << fNavigatorId << G4endl; |
---|
| 683 | |
---|
| 684 | fCurrentTouchableHandle= |
---|
| 685 | fPathFinder->CreateTouchableHandle( fNavigatorId ); |
---|
| 686 | |
---|
| 687 | // Check whether the particle is out of the world volume |
---|
| 688 | // If so it has exited and must be killed. |
---|
| 689 | // |
---|
| 690 | #ifdef G4DEBUG_TRANSPORT |
---|
| 691 | if( fVerboseLevel > 1 ){ |
---|
| 692 | G4VPhysicalVolume* vol= fCurrentTouchableHandle->GetVolume(); |
---|
| 693 | G4cout << "CHECK !!!!!!!!!!! fCurrentTouchableHandle->GetVolume() = " << vol; |
---|
| 694 | if( vol ) { G4cout << "Name=" << vol->GetName(); } |
---|
| 695 | G4cout << G4endl; |
---|
| 696 | } |
---|
| 697 | #endif |
---|
| 698 | if( fCurrentTouchableHandle->GetVolume() == 0 ) |
---|
| 699 | { |
---|
| 700 | fParticleChange.ProposeTrackStatus( fStopAndKill ) ; |
---|
| 701 | } |
---|
| 702 | retCurrentTouchable = fCurrentTouchableHandle ; |
---|
| 703 | // fParticleChange.SetTouchableHandle( fCurrentTouchableHandle ) ; |
---|
| 704 | |
---|
| 705 | // Notify particle change that this is last step in volume |
---|
| 706 | fParticleChange.ProposeLastStepInVolume(true); |
---|
| 707 | // Double check that a boundary limited the step, and |
---|
| 708 | // if( fLinearNavigator->Get |
---|
| 709 | |
---|
| 710 | } |
---|
| 711 | else // fAnyGeometryLimitedStep is false |
---|
| 712 | { |
---|
| 713 | #ifdef G4DEBUG_TRANSPORT |
---|
| 714 | if( fVerboseLevel > 1 ){ |
---|
| 715 | G4cout << "G4CoupledTransportation::PostStepDoIt -- " |
---|
| 716 | << " fAnyGeometryLimitedStep = " << fAnyGeometryLimitedStep |
---|
| 717 | << " must be false " << G4endl; |
---|
| 718 | } |
---|
| 719 | #endif |
---|
| 720 | // This serves only to move each of the Navigator's location |
---|
| 721 | // |
---|
| 722 | // fLinearNavigator->LocateGlobalPointWithinVolume( track.GetPosition() ) ; |
---|
| 723 | |
---|
| 724 | // G4cout << "G4CoupledTransportation calling PathFinder::ReLocate() " << G4endl; |
---|
| 725 | fPathFinder->ReLocate( track.GetPosition() ); |
---|
| 726 | // track.GetMomentumDirection() ); |
---|
| 727 | |
---|
| 728 | // Keep the value of the track's current Touchable is retained, |
---|
| 729 | // and use it to overwrite the (unset) one in particle change. |
---|
| 730 | // Expect this must be fCurrentTouchable too |
---|
| 731 | // - could it be different, eg at the start of a step ? |
---|
| 732 | // |
---|
| 733 | retCurrentTouchable = track.GetTouchableHandle() ; |
---|
| 734 | // fParticleChange.SetTouchableHandle( track.GetTouchableHandle() ) ; |
---|
| 735 | |
---|
| 736 | // Have not reached a boundary |
---|
| 737 | fParticleChange.ProposeLastStepInVolume(false); |
---|
| 738 | } // endif ( fAnyGeometryLimitedStep ) |
---|
| 739 | |
---|
| 740 | const G4VPhysicalVolume* pNewVol = retCurrentTouchable->GetVolume() ; |
---|
| 741 | const G4Material* pNewMaterial = 0 ; |
---|
| 742 | const G4VSensitiveDetector* pNewSensitiveDetector = 0 ; |
---|
| 743 | |
---|
| 744 | if( pNewVol != 0 ) |
---|
| 745 | { |
---|
| 746 | pNewMaterial= pNewVol->GetLogicalVolume()->GetMaterial(); |
---|
| 747 | pNewSensitiveDetector= pNewVol->GetLogicalVolume()->GetSensitiveDetector(); |
---|
| 748 | } |
---|
| 749 | |
---|
| 750 | // ( const_cast<G4Material *> pNewMaterial ) ; |
---|
| 751 | // ( const_cast<G4VSensitiveDetetor *> pNewSensitiveDetector) ; |
---|
| 752 | |
---|
| 753 | fParticleChange.SetMaterialInTouchable( (G4Material *) pNewMaterial ) ; |
---|
| 754 | fParticleChange.SetSensitiveDetectorInTouchable( (G4VSensitiveDetector *) pNewSensitiveDetector ) ; |
---|
| 755 | // "temporarily" until Get/Set Material of ParticleChange, |
---|
| 756 | // and StepPoint can be made const. |
---|
| 757 | |
---|
| 758 | const G4MaterialCutsCouple* pNewMaterialCutsCouple = 0; |
---|
| 759 | if( pNewVol != 0 ) |
---|
| 760 | { |
---|
| 761 | pNewMaterialCutsCouple=pNewVol->GetLogicalVolume()->GetMaterialCutsCouple(); |
---|
| 762 | if( pNewMaterialCutsCouple!=0 |
---|
| 763 | && pNewMaterialCutsCouple->GetMaterial()!=pNewMaterial ) |
---|
| 764 | { |
---|
| 765 | // for parametrized volume |
---|
| 766 | // |
---|
| 767 | pNewMaterialCutsCouple = |
---|
| 768 | G4ProductionCutsTable::GetProductionCutsTable() |
---|
| 769 | ->GetMaterialCutsCouple(pNewMaterial, |
---|
| 770 | pNewMaterialCutsCouple->GetProductionCuts()); |
---|
| 771 | } |
---|
| 772 | } |
---|
| 773 | fParticleChange.SetMaterialCutsCoupleInTouchable( pNewMaterialCutsCouple ); |
---|
| 774 | |
---|
| 775 | // Must always set the touchable in ParticleChange, whether relocated or not |
---|
| 776 | fParticleChange.SetTouchableHandle(retCurrentTouchable) ; |
---|
| 777 | |
---|
| 778 | return &fParticleChange ; |
---|
| 779 | } |
---|
| 780 | |
---|
| 781 | // New method takes over the responsibility to reset the state of |
---|
| 782 | // G4CoupledTransportation object: |
---|
| 783 | // - at the start of a new track, and |
---|
| 784 | // - on the resumption of a suspended track. |
---|
| 785 | |
---|
| 786 | void |
---|
| 787 | G4CoupledTransportation::StartTracking(G4Track* aTrack) |
---|
| 788 | { |
---|
| 789 | |
---|
| 790 | static G4TransportationManager* transportMgr= |
---|
| 791 | G4TransportationManager::GetTransportationManager(); |
---|
| 792 | |
---|
| 793 | // G4VProcess::StartTracking(aTrack); |
---|
| 794 | |
---|
| 795 | // The 'initialising' actions |
---|
| 796 | // once taken in AlongStepGPIL -- if ( track.GetCurrentStepNumber()==1 ) |
---|
| 797 | |
---|
| 798 | // fStartedNewTrack= true; |
---|
| 799 | |
---|
| 800 | fMassNavigator = transportMgr->GetNavigatorForTracking() ; |
---|
| 801 | fNavigatorId= transportMgr->ActivateNavigator( fMassNavigator ); // Confirm it! |
---|
| 802 | |
---|
| 803 | // if( fVerboseLevel > 1 ){ |
---|
| 804 | // G4cout << " Navigator Id obtained in StartTracking " << fNavigatorId << G4endl; |
---|
| 805 | // } |
---|
| 806 | G4ThreeVector position = aTrack->GetPosition(); |
---|
| 807 | G4ThreeVector direction = aTrack->GetMomentumDirection(); |
---|
| 808 | |
---|
| 809 | // if( fVerboseLevel > 1 ){ |
---|
| 810 | // G4cout << " Calling PathFinder::PrepareNewTrack from " |
---|
| 811 | // << " G4CoupledTransportation::StartTracking -- which calls Locate()" << G4endl; |
---|
| 812 | // } |
---|
| 813 | fPathFinder->PrepareNewTrack( position, direction); |
---|
| 814 | // This implies a call to fPathFinder->Locate( position, direction ); |
---|
| 815 | |
---|
| 816 | // Global field, if any, must exist before tracking is started |
---|
| 817 | fGlobalFieldExists= DoesGlobalFieldExist(); |
---|
| 818 | // reset safety value and center |
---|
| 819 | // |
---|
| 820 | fPreviousMassSafety = 0.0 ; |
---|
| 821 | fPreviousFullSafety = 0.0 ; |
---|
| 822 | fPreviousSftOrigin = G4ThreeVector(0.,0.,0.) ; |
---|
| 823 | |
---|
| 824 | // reset looping counter -- for motion in field |
---|
| 825 | fNoLooperTrials= 0; |
---|
| 826 | // Must clear this state .. else it depends on last track's value |
---|
| 827 | // --> a better solution would set this from state of suspended track TODO ? |
---|
| 828 | // Was if( aTrack->GetCurrentStepNumber()==1 ) { .. } |
---|
| 829 | |
---|
| 830 | // ChordFinder reset internal state |
---|
| 831 | // |
---|
| 832 | if( fGlobalFieldExists ) { |
---|
| 833 | fFieldPropagator->ClearPropagatorState(); |
---|
| 834 | // Resets safety values, in case of overlaps. |
---|
| 835 | |
---|
| 836 | G4ChordFinder* chordF= fFieldPropagator->GetChordFinder(); |
---|
| 837 | if( chordF ) chordF->ResetStepEstimate(); |
---|
| 838 | } |
---|
| 839 | // Clear the chord finders of all fields (ie managers) derived objects |
---|
| 840 | static G4FieldManagerStore* fieldMgrStore= G4FieldManagerStore::GetInstance(); |
---|
| 841 | fieldMgrStore->ClearAllChordFindersState(); |
---|
| 842 | |
---|
| 843 | #ifdef G4DEBUG_TRANSPORT |
---|
| 844 | if( fVerboseLevel > 1 ){ |
---|
| 845 | G4cout << " Returning touchable handle " << fCurrentTouchableHandle << G4endl; |
---|
| 846 | } |
---|
| 847 | #endif |
---|
| 848 | |
---|
| 849 | // Update the current touchable handle (from the track's) |
---|
| 850 | // |
---|
| 851 | fCurrentTouchableHandle = aTrack->GetTouchableHandle(); |
---|
| 852 | } |
---|
| 853 | |
---|
| 854 | void |
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| 855 | G4CoupledTransportation:: |
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| 856 | ReportInexactEnergy(G4double startEnergy, G4double endEnergy) |
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| 857 | { |
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| 858 | static G4int no_warnings= 0, warnModulo=1, moduloFactor= 10, no_large_ediff= 0; |
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| 859 | |
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| 860 | if( std::fabs(startEnergy- endEnergy) > perThousand * endEnergy ) |
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| 861 | { |
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| 862 | no_large_ediff ++; |
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| 863 | if( (no_large_ediff% warnModulo) == 0 ) |
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| 864 | { |
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| 865 | no_warnings++; |
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| 866 | G4cout << "WARNING - G4CoupledTransportation::AlongStepGetPIL() " |
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| 867 | << " Energy change in Step is above 1^-3 relative value. " << G4endl |
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| 868 | << " Relative change in 'tracking' step = " |
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| 869 | << std::setw(15) << (endEnergy-startEnergy)/startEnergy << G4endl |
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| 870 | << " Starting E= " << std::setw(12) << startEnergy / MeV << " MeV " << G4endl |
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| 871 | << " Ending E= " << std::setw(12) << endEnergy / MeV << " MeV " << G4endl; |
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| 872 | G4cout << " Energy has been corrected -- however, review" |
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| 873 | << " field propagation parameters for accuracy." << G4endl; |
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| 874 | if( (fVerboseLevel > 2 ) || (no_warnings<4) || (no_large_ediff == warnModulo * moduloFactor) ){ |
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| 875 | G4cout << " These include EpsilonStepMax(/Min) in G4FieldManager " |
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| 876 | << " which determine fractional error per step for integrated quantities. " << G4endl |
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| 877 | << " Note also the influence of the permitted number of integration steps." |
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| 878 | << G4endl; |
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| 879 | } |
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| 880 | G4cerr << "ERROR - G4CoupledTransportation::AlongStepGetPIL()" << G4endl |
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| 881 | << " Bad 'endpoint'. Energy change detected" |
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| 882 | << " and corrected. " |
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| 883 | << " Has occurred already " |
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| 884 | << no_large_ediff << " times." << G4endl; |
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| 885 | if( no_large_ediff == warnModulo * moduloFactor ) |
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| 886 | { |
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| 887 | warnModulo *= moduloFactor; |
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| 888 | } |
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| 889 | } |
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| 890 | } |
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| 891 | } |
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