Gabriele Cosmo
111 lines
4.0 KiB
C++
111 lines
4.0 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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// G4ParticleChangeForMSC
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//
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// Class description:
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//
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// Concrete "Particle Change" class for Multiple Scattering process.
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// Author: Hisaya Kurashige, 23 March 1998
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// Revision: Vladimir Ivantchenko, 16 January 2004
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// 23 August 2022
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// --------------------------------------------------------------------
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#ifndef G4ParticleChangeForMSC_hh
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#define G4ParticleChangeForMSC_hh 1
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#include "globals.hh"
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#include "G4ios.hh"
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#include "G4ThreeVector.hh"
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#include "G4VParticleChange.hh"
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class G4ParticleChangeForMSC final : public G4VParticleChange
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{
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public:
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G4ParticleChangeForMSC();
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~G4ParticleChangeForMSC() override = default;
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G4ParticleChangeForMSC(const G4ParticleChangeForMSC& right) = delete;
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G4ParticleChangeForMSC& operator=
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(const G4ParticleChangeForMSC& right) = delete;
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// A multiple scattering process gives the final state of the particle
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G4Step* UpdateStepForAlongStep(G4Step* step) final;
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// Initialise only properties changed by multiple scattering
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inline void InitialiseMSC(const G4Track&, const G4Step& step);
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inline void ProposeMomentumDirection(const G4ThreeVector& Pfinal);
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inline const G4ThreeVector* GetProposedMomentumDirection() const;
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inline void ProposePosition(const G4ThreeVector& finalPosition);
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inline const G4ThreeVector& GetProposedPosition() const;
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private:
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G4ThreeVector theMomentumDirection;
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// It is the vector containing the final momentum direction
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// after multiple scattering is applied along step
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G4ThreeVector thePosition;
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// The changed of post step position after multiple scattering
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};
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inline void G4ParticleChangeForMSC::ProposeMomentumDirection(
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const G4ThreeVector& P)
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{
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theMomentumDirection = P;
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}
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inline const G4ThreeVector*
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G4ParticleChangeForMSC::GetProposedMomentumDirection() const
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{
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return &theMomentumDirection;
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}
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inline void G4ParticleChangeForMSC::ProposePosition(const G4ThreeVector& P)
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{
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thePosition = P;
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}
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inline const G4ThreeVector& G4ParticleChangeForMSC::GetProposedPosition() const
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{
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return thePosition;
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}
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inline void
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G4ParticleChangeForMSC::InitialiseMSC(const G4Track& track, const G4Step& step)
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{
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theStatusChange = track.GetTrackStatus();
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auto poststep = step.GetPostStepPoint();
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thePosition = poststep->GetPosition();
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theMomentumDirection = poststep->GetMomentumDirection();
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theCurrentTrack = &track;
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}
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#endif
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