Gabriele Cosmo
113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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/// \file field/field06/src/F06ExtraPhysics.cc
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/// \brief Implementation of the F06ExtraPhysics class
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//
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//
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//
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#include "globals.hh"
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#include "G4ParticleDefinition.hh"
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#include "G4ParticleTable.hh"
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#include "G4ProcessManager.hh"
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#include "G4Decay.hh"
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#include "G4DecayTable.hh"
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#include "G4NeutronBetaDecayChannel.hh"
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#include "G4UserSpecialCuts.hh"
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#include "G4StepLimiter.hh"
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#include "G4SystemOfUnits.hh"
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#include "F06ExtraPhysics.hh"
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F06ExtraPhysics::F06ExtraPhysics()
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: G4VPhysicsConstructor("Extra") {;}
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F06ExtraPhysics::~F06ExtraPhysics() {;}
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void F06ExtraPhysics::ConstructParticle() {;}
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void F06ExtraPhysics::ConstructProcess()
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{
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theParticleIterator->reset();
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while ((*theParticleIterator)()) {
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G4ParticleDefinition* particle = theParticleIterator->value();
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G4ProcessManager* pmanager = particle->GetProcessManager();
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G4String particleName = particle->GetParticleName();
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if (!pmanager) {
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std::ostringstream o;
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o << "Particle " << particleName << "without a Process Manager";
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G4Exception("F06ExtraPhysics::ConstructProcess()","",
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FatalException,o.str().c_str());
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}
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pmanager->AddDiscreteProcess(new G4StepLimiter());
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pmanager->AddDiscreteProcess(new G4UserSpecialCuts());
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}
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AddBetaDecay();
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}
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void F06ExtraPhysics::AddBetaDecay()
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{
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theParticleIterator->reset();
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while ((*theParticleIterator)()) {
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G4ParticleDefinition* particle = theParticleIterator->value();
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G4String particleName = particle->GetParticleName();
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if (particleName == "neutron") {
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particle->SetPDGLifeTime(885.7*second);
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particle->SetPDGStable(false);
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G4DecayTable * table = new G4DecayTable();
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G4VDecayChannel* mode = new G4NeutronBetaDecayChannel("neutron",1.00);
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table->Insert(mode);
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particle->SetDecayTable(table);
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G4ProcessManager* pmanager = particle->GetProcessManager();
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if (!pmanager) {
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std::ostringstream o;
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o << "Particle " << particleName << "without a Process Manager";
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G4Exception("F06ExtraPhysics::ConstructProcess()","",
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FatalException,o.str().c_str());
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}
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G4Decay* theDecayProcess = new G4Decay();
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pmanager->AddProcess(theDecayProcess);
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pmanager->SetProcessOrdering(theDecayProcess,idxPostStep);
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pmanager->SetProcessOrdering(theDecayProcess,idxAtRest);
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break;
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}
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}
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}
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