[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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[961] | 27 | // $Id: G4UnknownDecay.cc,v 1.6 2007/12/15 12:29:16 kurasige Exp $ |
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[1007] | 28 | // GEANT4 tag $Name: geant4-09-02 $ |
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[819] | 29 | // |
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| 30 | // |
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| 31 | // -------------------------------------------------------------- |
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| 32 | // GEANT 4 class implementation file |
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| 33 | // |
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| 34 | // ------------------------------------------------------------ |
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| 35 | // |
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| 36 | |
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| 37 | #include "G4UnknownDecay.hh" |
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| 38 | #include "G4DynamicParticle.hh" |
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| 39 | #include "G4DecayProducts.hh" |
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| 40 | #include "G4PhysicsLogVector.hh" |
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| 41 | #include "G4ParticleChangeForDecay.hh" |
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[961] | 42 | #include "G4DecayProcessType.hh" |
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[819] | 43 | |
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[961] | 44 | |
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[819] | 45 | // constructor |
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| 46 | G4UnknownDecay::G4UnknownDecay(const G4String& processName) |
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| 47 | :G4VDiscreteProcess(processName, fDecay), |
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| 48 | verboseLevel(1), |
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| 49 | HighestValue(20.0) |
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| 50 | { |
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[961] | 51 | // set Process Sub Type |
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| 52 | SetProcessSubType(static_cast<int>(DECAY_Unknown)); |
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| 53 | |
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[819] | 54 | #ifdef G4VERBOSE |
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| 55 | if (GetVerboseLevel()>1) { |
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| 56 | G4cout << "G4UnknownDecay constructor " << " Name:" << processName << G4endl; |
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| 57 | } |
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| 58 | #endif |
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| 59 | pParticleChange = &fParticleChangeForDecay; |
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| 60 | } |
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| 61 | |
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| 62 | G4UnknownDecay::~G4UnknownDecay() |
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| 63 | { |
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| 64 | } |
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| 65 | |
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| 66 | G4bool G4UnknownDecay::IsApplicable(const G4ParticleDefinition& aParticleType) |
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| 67 | { |
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| 68 | if(aParticleType.GetParticleName()=="unknown") return true; |
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| 69 | return false; |
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| 70 | } |
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| 71 | |
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| 72 | G4double G4UnknownDecay::GetMeanFreePath(const G4Track& /*aTrack*/,G4double, G4ForceCondition*) |
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| 73 | { |
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| 74 | return DBL_MIN; |
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| 75 | } |
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| 76 | |
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| 77 | void G4UnknownDecay::BuildPhysicsTable(const G4ParticleDefinition&) |
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| 78 | { |
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| 79 | return; |
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| 80 | } |
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| 81 | |
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| 82 | G4VParticleChange* G4UnknownDecay::DecayIt(const G4Track& aTrack, const G4Step& ) |
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| 83 | { |
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| 84 | // The DecayIt() method returns by pointer a particle-change object. |
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| 85 | // Units are expressed in GEANT4 internal units. |
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| 86 | |
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| 87 | // Initialize ParticleChange |
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| 88 | // all members of G4VParticleChange are set to equal to |
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| 89 | // corresponding member in G4Track |
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| 90 | fParticleChangeForDecay.Initialize(aTrack); |
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| 91 | |
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| 92 | // get particle |
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| 93 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle(); |
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| 94 | |
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| 95 | //check if thePreAssignedDecayProducts exists |
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| 96 | const G4DecayProducts* o_products = (aParticle->GetPreAssignedDecayProducts()); |
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| 97 | G4bool isPreAssigned = (o_products != 0); |
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| 98 | G4DecayProducts* products = 0; |
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| 99 | |
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| 100 | if (!isPreAssigned ){ |
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| 101 | fParticleChangeForDecay.SetNumberOfSecondaries(0); |
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| 102 | // Kill the parent particle |
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| 103 | fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ; |
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| 104 | fParticleChangeForDecay.ProposeLocalEnergyDeposit(0.0); |
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| 105 | |
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| 106 | ClearNumberOfInteractionLengthLeft(); |
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| 107 | return &fParticleChangeForDecay ; |
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| 108 | } |
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| 109 | |
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| 110 | // copy decay products |
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| 111 | products = new G4DecayProducts(*o_products); |
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| 112 | |
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| 113 | // get parent particle information ................................... |
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| 114 | G4double ParentEnergy = aParticle->GetTotalEnergy(); |
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| 115 | G4double ParentMass = aParticle->GetMass(); |
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| 116 | if (ParentEnergy < ParentMass) { |
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| 117 | ParentEnergy = ParentMass; |
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| 118 | #ifdef G4VERBOSE |
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| 119 | if (GetVerboseLevel()>1) { |
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| 120 | G4cout << "G4UnknownDecay::DoIt : Total Energy is less than its mass" << G4endl; |
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| 121 | G4cout << " Particle: " << aParticle->GetDefinition()->GetParticleName(); |
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| 122 | G4cout << " Energy:" << ParentEnergy/MeV << "[MeV]"; |
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| 123 | G4cout << " Mass:" << ParentMass/MeV << "[MeV]"; |
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| 124 | G4cout << G4endl; |
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| 125 | } |
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| 126 | #endif |
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| 127 | } |
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| 128 | G4ThreeVector ParentDirection(aParticle->GetMomentumDirection()); |
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| 129 | |
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| 130 | G4double energyDeposit = 0.0; |
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| 131 | G4double finalGlobalTime = aTrack.GetGlobalTime(); |
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| 132 | //boost all decay products to laboratory frame |
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| 133 | //if the particle has traveled |
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| 134 | if(aParticle->GetPreAssignedDecayProperTime()>0.) { |
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| 135 | products->Boost( ParentEnergy, ParentDirection); |
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| 136 | } |
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| 137 | |
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| 138 | //add products in fParticleChangeForDecay |
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| 139 | G4int numberOfSecondaries = products->entries(); |
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| 140 | fParticleChangeForDecay.SetNumberOfSecondaries(numberOfSecondaries); |
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| 141 | #ifdef G4VERBOSE |
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| 142 | if (GetVerboseLevel()>1) { |
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| 143 | G4cout << "G4UnknownDecay::DoIt : Decay vertex :"; |
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| 144 | G4cout << " Time: " << finalGlobalTime/ns << "[ns]"; |
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| 145 | G4cout << " X:" << (aTrack.GetPosition()).x() /cm << "[cm]"; |
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| 146 | G4cout << " Y:" << (aTrack.GetPosition()).y() /cm << "[cm]"; |
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| 147 | G4cout << " Z:" << (aTrack.GetPosition()).z() /cm << "[cm]"; |
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| 148 | G4cout << G4endl; |
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| 149 | G4cout << "G4UnknownDecay::DoIt : decay products in Lab. Frame" << G4endl; |
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| 150 | products->DumpInfo(); |
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| 151 | } |
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| 152 | #endif |
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| 153 | G4int index; |
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| 154 | G4ThreeVector currentPosition; |
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| 155 | const G4TouchableHandle thand = aTrack.GetTouchableHandle(); |
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| 156 | for (index=0; index < numberOfSecondaries; index++) |
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| 157 | { |
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| 158 | // get current position of the track |
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| 159 | currentPosition = aTrack.GetPosition(); |
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| 160 | // create a new track object |
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| 161 | G4Track* secondary = new G4Track( products->PopProducts(), |
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| 162 | finalGlobalTime , |
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| 163 | currentPosition ); |
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| 164 | // switch on good for tracking flag |
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| 165 | secondary->SetGoodForTrackingFlag(); |
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| 166 | secondary->SetTouchableHandle(thand); |
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| 167 | // add the secondary track in the List |
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| 168 | fParticleChangeForDecay.AddSecondary(secondary); |
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| 169 | } |
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| 170 | delete products; |
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| 171 | |
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| 172 | // Kill the parent particle |
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| 173 | fParticleChangeForDecay.ProposeTrackStatus( fStopAndKill ) ; |
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| 174 | fParticleChangeForDecay.ProposeLocalEnergyDeposit(energyDeposit); |
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| 175 | fParticleChangeForDecay.ProposeGlobalTime( finalGlobalTime ); |
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| 176 | // reset NumberOfInteractionLengthLeft |
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| 177 | ClearNumberOfInteractionLengthLeft(); |
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| 178 | |
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| 179 | return &fParticleChangeForDecay ; |
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| 180 | } |
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| 181 | |
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| 182 | |
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| 183 | |
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| 184 | |
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| 185 | |
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| 186 | |
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