Gabriele Cosmo
176 lines
5.8 KiB
C++
176 lines
5.8 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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//
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// -------------------------------------------------------------------
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//
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// GEANT4 Class file
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//
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//
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// File name: G4VMscModel
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//
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// Author: Vladimir Ivanchenko
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//
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// Creation date: 07.03.2008
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//
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// Modifications:
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//
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//
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// Class Description:
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//
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// General interface to msc models
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// -------------------------------------------------------------------
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//
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#include "G4VMscModel.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4ParticleChangeForMSC.hh"
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#include "G4TransportationManager.hh"
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#include "G4LossTableManager.hh"
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#include "G4LossTableBuilder.hh"
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#include "G4EmParameters.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VMscModel::G4VMscModel(const G4String& nam):
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G4VEmModel(nam),
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safetyHelper(nullptr),
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ionisation(nullptr),
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facrange(0.04),
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facgeom(2.5),
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facsafety(0.3),
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skin(1.0),
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dtrl(0.05),
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lambdalimit(mm),
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geomMin(1.e-6*CLHEP::mm),
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geomMax(1.e50*CLHEP::mm),
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fDisplacement(0.,0.,0.),
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steppingAlgorithm(fUseSafety),
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samplez(false),
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latDisplasment(true)
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{
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dedx = 2.0*CLHEP::MeV*CLHEP::cm2/CLHEP::g;
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localrange = DBL_MAX;
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localtkin = 0.0;
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currentPart = nullptr;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4VMscModel::~G4VMscModel()
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ParticleChangeForMSC*
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G4VMscModel::GetParticleChangeForMSC(const G4ParticleDefinition* p)
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{
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// recomputed for each new run
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if(!safetyHelper) {
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safetyHelper = G4TransportationManager::GetTransportationManager()
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->GetSafetyHelper();
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safetyHelper->InitialiseHelper();
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}
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G4ParticleChangeForMSC* change = nullptr;
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if (pParticleChange) {
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change = static_cast<G4ParticleChangeForMSC*>(pParticleChange);
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} else {
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change = new G4ParticleChangeForMSC();
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}
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if(p) {
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// table is never built for GenericIon
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if(p->GetParticleName() == "GenericIon") {
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if(xSectionTable) {
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xSectionTable->clearAndDestroy();
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delete xSectionTable;
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xSectionTable = nullptr;
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}
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// table is always built for low mass particles
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} else if(p->GetPDGMass() < 4.5*GeV || ForceBuildTableFlag()) {
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G4EmParameters* param = G4EmParameters::Instance();
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idxTable = 0;
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G4LossTableBuilder* builder =
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G4LossTableManager::Instance()->GetTableBuilder();
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if(IsMaster()) {
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G4double emin = std::max(LowEnergyLimit(), LowEnergyActivationLimit());
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G4double emax = std::min(HighEnergyLimit(), HighEnergyActivationLimit());
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emin = std::max(emin, param->MinKinEnergy());
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emax = std::min(emax, param->MaxKinEnergy());
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if(emin < emax) {
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xSectionTable = builder->BuildTableForModel(xSectionTable, this, p,
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emin, emax, true);
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}
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}
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theDensityFactor = builder->GetDensityFactors();
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theDensityIdx = builder->GetCoupleIndexes();
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}
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}
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return change;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4ThreeVector&
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G4VMscModel::SampleScattering(const G4ThreeVector&, G4double)
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{
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return fDisplacement;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4VMscModel::ComputeTruePathLengthLimit(const G4Track&, G4double&)
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{
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return DBL_MAX;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4VMscModel::ComputeGeomPathLength(G4double truePathLength)
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{
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return truePathLength;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double G4VMscModel::ComputeTrueStepLength(G4double geomPathLength)
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{
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return geomPathLength;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void G4VMscModel::SampleSecondaries(std::vector<G4DynamicParticle*>*,
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double, G4double)
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{}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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