Gabriele Cosmo
222 lines
6.3 KiB
C++
222 lines
6.3 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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// $Id: G4VMscModel.hh,v 1.9 2009/04/07 18:39:47 vnivanch Exp $
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// GEANT4 tag $Name: geant4-09-03 $
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//
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// -------------------------------------------------------------------
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//
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// GEANT4 Class header 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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// 07.04.2009 V.Ivanchenko moved msc methods from G4VEmModel to G4VMscModel
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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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#ifndef G4VMscModel_h
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#define G4VMscModel_h 1
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#include "G4VEmModel.hh"
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#include "G4MscStepLimitType.hh"
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#include "globals.hh"
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#include "G4ThreeVector.hh"
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#include "G4Track.hh"
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#include "G4SafetyHelper.hh"
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class G4ParticleChangeForMSC;
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class G4VMscModel : public G4VEmModel
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{
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public:
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G4VMscModel(const G4String& nam);
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virtual ~G4VMscModel();
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virtual G4double ComputeTruePathLengthLimit(const G4Track& track,
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G4PhysicsTable* theLambdaTable,
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G4double currentMinimalStep);
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virtual G4double ComputeGeomPathLength(G4double truePathLength);
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virtual G4double ComputeTrueStepLength(G4double geomPathLength);
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virtual void SampleScattering(const G4DynamicParticle*,
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G4double safety);
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// empty
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virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double tmin,
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G4double tmax);
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//================================================================
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// Set parameters of multiple scattering models
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//================================================================
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inline void SetStepLimitType(G4MscStepLimitType);
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inline void SetLateralDisplasmentFlag(G4bool val);
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inline void SetRangeFactor(G4double);
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inline void SetGeomFactor(G4double);
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inline void SetSkin(G4double);
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inline void SetSampleZ(G4bool);
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protected:
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// initialisation of the ParticleChange for the model
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G4ParticleChangeForMSC* GetParticleChangeForMSC();
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// initialisation of interface with geometry
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void InitialiseSafetyHelper();
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// shift point of the track PostStep
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void ComputeDisplacement(G4ParticleChangeForMSC*,
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const G4ThreeVector& displDir,
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G4double displacement,
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G4double postsafety);
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// compute safety
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inline G4double ComputeSafety(const G4ThreeVector& position, G4double limit);
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// compute linear distance to a geometry boundary
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inline G4double ComputeGeomLimit(const G4Track& position, G4double& presafety,
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G4double limit);
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private:
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// hide assignment operator
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G4VMscModel & operator=(const G4VMscModel &right);
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G4VMscModel(const G4VMscModel&);
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G4SafetyHelper* safetyHelper;
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protected:
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G4double facrange;
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G4double facgeom;
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G4double facsafety;
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G4double skin;
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G4double dtrl;
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G4double lambdalimit;
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G4double geommax;
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G4MscStepLimitType steppingAlgorithm;
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G4bool samplez;
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G4bool latDisplasment;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetLateralDisplasmentFlag(G4bool val)
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{
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latDisplasment = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetSkin(G4double val)
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{
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skin = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetRangeFactor(G4double val)
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{
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facrange = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetGeomFactor(G4double val)
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{
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facgeom = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetStepLimitType(G4MscStepLimitType val)
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{
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steppingAlgorithm = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline void G4VMscModel::SetSampleZ(G4bool val)
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{
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samplez = val;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline G4double G4VMscModel::ComputeSafety(const G4ThreeVector& position,
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G4double)
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{
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return safetyHelper->ComputeSafety(position);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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inline G4double G4VMscModel::ComputeGeomLimit(const G4Track& track,
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G4double& presafety,
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G4double limit)
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{
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G4double res = geommax;
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if(track.GetVolume() != safetyHelper->GetWorldVolume()) {
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res = safetyHelper->CheckNextStep(
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track.GetStep()->GetPreStepPoint()->GetPosition(),
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track.GetMomentumDirection(),
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limit, presafety);
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}
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return res;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#endif
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