microelectronics/src/MicroElecSiPhysics.cc

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 // -------------------------------------------------------------------
0027 // -------------------------------------------------------------------
0028
0029 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0030
0031 #include "MicroElecSiPhysics.hh"
0032 #include "G4SystemOfUnits.hh"
0033
0034 // Geant4-MicroElec MODELS
0035
0036 #include "G4MicroElecElastic.hh"
0037 #include "G4MicroElecElasticModel.hh"
0038
0039 #include "G4MicroElecInelastic.hh"
0040 #include "G4MicroElecInelasticModel.hh"
0041 //
0042
0043 #include "G4LossTableManager.hh"
0044 #include "G4EmConfigurator.hh"
0045 #include "G4VEmModel.hh"
0046 #include "G4DummyModel.hh"
0047 #include "G4eIonisation.hh"
0048 #include "G4hIonisation.hh"
0049 #include "G4ionIonisation.hh"
0050 #include "G4eMultipleScattering.hh"
0051 #include "G4hMultipleScattering.hh"
0052 #include "G4BraggModel.hh"
0053 #include "G4BraggIonModel.hh"
0054 #include "G4BetheBlochModel.hh"
0055 #include "G4UrbanMscModel.hh"
0056 #include "G4MollerBhabhaModel.hh"
0057 #include "G4IonFluctuations.hh"
0058 #include "G4UniversalFluctuation.hh"
0059
0060 #include "ElectronCapture.hh"
0061
0062 #include "G4UAtomicDeexcitation.hh"
0063
0064 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0065
0066 MicroElecSiPhysics::MicroElecSiPhysics():  G4VUserPhysicsList()
0067 {
0068   defaultCutValue = 1*micrometer;
0069   cutForGamma     = defaultCutValue;
0070   cutForElectron  = defaultCutValue;
0071   cutForPositron  = defaultCutValue;
0072   cutForProton    = defaultCutValue;
0073
0074   SetVerboseLevel(1);
0075 }
0076
0077 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0078
0079 MicroElecSiPhysics::~MicroElecSiPhysics()
0080 {}
0081
0082 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0083
0084 void MicroElecSiPhysics::ConstructParticle()
0085 {
0086   ConstructBosons();
0087   ConstructLeptons();
0088   ConstructBarions();
0089 }
0090
0091 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0092
0093 void MicroElecSiPhysics::ConstructBosons()
0094 {
0095   // gamma
0096   G4Gamma::GammaDefinition();
0097 }
0098  //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0099
0100 void MicroElecSiPhysics::ConstructLeptons()
0101 {
0102   // leptons
0103   G4Electron::ElectronDefinition();
0104   G4Positron::PositronDefinition();
0105 }
0106
0107 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0108
0109 void MicroElecSiPhysics::ConstructBarions()
0110 {
0111   //  baryons
0112   G4Proton::ProtonDefinition();
0113   G4GenericIon::GenericIonDefinition();
0114 }
0115
0116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0117
0118 void MicroElecSiPhysics::ConstructProcess()
0119 {
0120   AddTransportation();
0121   ConstructEM();
0122   ConstructGeneral();
0123 }
0124
0125 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0126
0127 void MicroElecSiPhysics::ConstructEM()
0128 {
0129
0130   auto particleIterator=GetParticleIterator();
0131   particleIterator->reset();
0132
0133   while( (*particleIterator)() )
0134   {
0135
0136     G4ParticleDefinition* particle = particleIterator->value();
0137     G4ProcessManager* pmanager = particle->GetProcessManager();
0138     G4String particleName = particle->GetParticleName();
0139
0140     // *********************************
0141     // 1) Processes for the World region
0142     // *********************************
0143
0144     if (particleName == "e-") {
0145
0146       // STANDARD msc is active in the world
0147       G4eMultipleScattering* msc = new G4eMultipleScattering();
0148       msc->AddEmModel(1, new G4UrbanMscModel());
0149       pmanager->AddProcess(msc, -1, 1, -1);
0150
0151       // STANDARD ionisation is active in the world
0152       G4eIonisation* eion = new G4eIonisation();
0153       pmanager->AddProcess(eion, -1, 2, 2);
0154
0155       // MicroElec elastic is not active in the world
0156       G4MicroElecElastic* theMicroElecElasticProcess = new G4MicroElecElastic("e-_G4MicroElecElastic");
0157       theMicroElecElasticProcess->SetEmModel(new G4DummyModel());
0158       pmanager->AddDiscreteProcess(theMicroElecElasticProcess);
0159
0160       // MicroElec ionisation is not active in the world
0161       G4MicroElecInelastic* microelecioni = new G4MicroElecInelastic("e-_G4MicroElecInelastic");
0162       microelecioni->SetEmModel(new G4DummyModel());
0163       pmanager->AddDiscreteProcess(microelecioni);
0164
0165       // THE FOLLOWING PROCESS WILL KILL ALL ELECTRONS BELOW A SELECTED ENERY THRESHOLD
0166       // Capture of low-energy e-
0167       ElectronCapture* ecap = new ElectronCapture("Target", 16.7*eV);
0168       pmanager->AddDiscreteProcess(ecap);
0169
0170     } else if ( particleName == "proton" ) {
0171
0172       // STANDARD msc is active in the world
0173       G4hMultipleScattering* msc = new G4hMultipleScattering();
0174       msc->AddEmModel(1, new G4UrbanMscModel());
0175       pmanager->AddProcess(msc, -1, 1, -1);
0176
0177       // STANDARD ionisation is active in the world
0178       G4hIonisation* hion = new G4hIonisation();
0179       pmanager->AddProcess(hion, -1, 2, 2);
0180
0181       // MicroElec ionisation is not active in the world
0182       G4MicroElecInelastic* microelecioni = new G4MicroElecInelastic("p_G4MicroElecInelastic");
0183       microelecioni->SetEmModel(new G4DummyModel());
0184       microelecioni->SetEmModel(new G4DummyModel());
0185       pmanager->AddDiscreteProcess(microelecioni);
0186
0187     } else if (particleName == "GenericIon") {
0188
0189       // STANDARD msc is active in the world
0190       G4hMultipleScattering* msc = new G4hMultipleScattering();
0191       msc->AddEmModel(1, new G4UrbanMscModel());
0192       pmanager->AddProcess(new G4hMultipleScattering, -1, 1, -1);
0193
0194       // STANDARD ionisation is active in the world
0195       G4ionIonisation* hion = new G4ionIonisation();
0196       pmanager->AddProcess(hion, -1, 2, 2);
0197
0198       // MicroElec ionisation is not active in the world
0199       G4MicroElecInelastic* microelecioni = new G4MicroElecInelastic("ion_G4MicroElecInelastic");
0200       microelecioni->SetEmModel(new G4DummyModel());
0201       microelecioni->SetEmModel(new G4DummyModel());
0202       pmanager->AddDiscreteProcess(microelecioni);
0203     }
0204   }
0205
0206   // **************************************
0207   // 2) Define processes for Target region
0208   // **************************************
0209
0210   // STANDARD EM processes should be inactivated when corresponding MicroElec processes are used
0211   // - STANDARD EM e- processes are inactivated below 100 MeV
0212   // - STANDARD EM proton & ion processes are inactivated below standEnergyLimit
0213   //
0214   G4EmConfigurator* em_config = G4LossTableManager::Instance()->EmConfigurator();
0215
0216   G4VEmModel* mod;
0217   // *** e-
0218
0219   // ---> STANDARD EM processes are inactivated below 100 MeV
0220
0221   G4UrbanMscModel* msc =  new G4UrbanMscModel();
0222   msc->SetActivationLowEnergyLimit(100*MeV);
0223   em_config->SetExtraEmModel("e-","msc",msc,"Target");
0224
0225   mod = new G4MollerBhabhaModel();
0226   mod->SetActivationLowEnergyLimit(100*MeV);
0227   em_config->SetExtraEmModel("e-","eIoni",mod,"Target",0.0,10*TeV, new G4UniversalFluctuation());
0228
0229   // ---> MicroElec processes activated
0230
0231   mod = new G4MicroElecElasticModel();
0232   em_config->SetExtraEmModel("e-","e-_G4MicroElecElastic",mod,"Target",0.0,100*MeV);
0233
0234   mod = new G4MicroElecInelasticModel();
0235   em_config->SetExtraEmModel("e-","e-_G4MicroElecInelastic",mod,"Target",16.7*eV,100*MeV);
0236
0237   // *** proton
0238
0239   // ---> STANDARD EM processes inactivated below standEnergyLimit
0240
0241   // STANDARD msc is still active
0242   // Inactivate following STANDARD processes
0243
0244   mod = new G4BraggModel();
0245   mod->SetActivationHighEnergyLimit(50*keV);
0246   em_config->SetExtraEmModel("proton","hIoni",mod,"Target",0.0,2*MeV, new G4IonFluctuations());
0247
0248   mod = new G4BetheBlochModel();
0249   mod->SetActivationLowEnergyLimit(10*GeV);
0250   em_config->SetExtraEmModel("proton","hIoni",mod,"Target",2*MeV,10*TeV, new G4IonFluctuations());
0251
0252   // ---> MicroElec processes activated
0253   mod = new G4MicroElecInelasticModel();
0254   mod->SetActivationLowEnergyLimit(50*keV);
0255   em_config->SetExtraEmModel("proton","p_G4MicroElecInelastic",mod,"Target",0.0,10*GeV);
0256   em_config->SetExtraEmModel("proton","p_G4MicroElecInelastic",new G4DummyModel,
0257                  "Target",10*GeV,10*TeV);
0258
0259  // *** ion
0260
0261   // ---> STANDARD EM processes inactivated below standEnergyLimit
0262
0263   // STANDARD msc is still active
0264   // Inactivate following STANDARD processes
0265
0266   mod = new G4BraggIonModel();
0267   mod->SetActivationHighEnergyLimit(50*keV);
0268   em_config->SetExtraEmModel("GenericIon","ionIoni",mod,"Target",0.0,2*MeV, new G4IonFluctuations());
0269
0270   mod = new G4BetheBlochModel();
0271   mod->SetActivationLowEnergyLimit(10*GeV);
0272   em_config->SetExtraEmModel("GenericIon","ionIoni",mod,"Target",2*MeV,10*TeV, new G4IonFluctuations());
0273
0274   // ---> MicroElec processes activated
0275   mod = new G4MicroElecInelasticModel();
0276   mod->SetActivationLowEnergyLimit(50*keV);
0277   em_config->SetExtraEmModel("GenericIon","ion_G4MicroElecInelastic",mod,
0278                  "Target",0.0,10*GeV);
0279   em_config->SetExtraEmModel("GenericIon","ion_G4MicroElecInelastic",new G4DummyModel,
0280                  "Target",10*GeV,10*TeV);
0281
0282   // Deexcitation
0283   //
0284   G4VAtomDeexcitation* de = new G4UAtomicDeexcitation();
0285   G4LossTableManager::Instance()->SetAtomDeexcitation(de);
0286   de->SetFluo(true);
0287   de->SetAuger(true);
0288   de->SetPIXE(true);
0289   de->InitialiseForNewRun();
0290
0291
0292 }
0293
0294 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0295
0296 void MicroElecSiPhysics::ConstructGeneral()
0297 { }
0298
0299 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0300
0301 void MicroElecSiPhysics::SetCuts()
0302 {
0303   if (verboseLevel >0)
0304   {
0305     G4cout << "MicroElecSiPhysics::SetCuts:";
0306     G4cout << "CutLength : " << G4BestUnit(defaultCutValue,"Length") << G4endl;
0307   }
0308
0309   // set cut values for gamma at first and for e- second and next for e+,
0310   // because some processes for e+/e- need cut values for gamma
0311   SetCutValue(cutForGamma, "gamma");
0312   SetCutValue(cutForElectron, "e-");
0313   SetCutValue(cutForPositron, "e+");
0314   SetCutValue(cutForProton, "proton");
0315
0316   if (verboseLevel>0) { DumpCutValuesTable(); }
0317 }