Gabriele Cosmo
221 lines
7.0 KiB
C++
221 lines
7.0 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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//
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// $Id: G4ParticleChangeForMSC.cc 68795 2013-04-05 13:24:46Z gcosmo $
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//
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//
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// --------------------------------------------------------------
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// GEANT 4 class implementation file
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//
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//
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//
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// ------------------------------------------------------------
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// Implemented for the new scheme 23 Mar. 1998 H.Kurahige
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// Update for model variant of msc 16 Jan 2004 V.Ivanchenko
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// --------------------------------------------------------------
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#include "G4ParticleChangeForMSC.hh"
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#include "G4SystemOfUnits.hh"
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#include "G4Track.hh"
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#include "G4Step.hh"
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#include "G4DynamicParticle.hh"
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#include "G4ExceptionSeverity.hh"
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G4ParticleChangeForMSC::G4ParticleChangeForMSC()
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: G4VParticleChange()
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{
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#ifdef G4VERBOSE
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if (verboseLevel>2) {
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G4cout << "G4ParticleChangeForMSC::G4ParticleChangeForMSC() " << G4endl;
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}
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#endif
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}
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G4ParticleChangeForMSC::~G4ParticleChangeForMSC()
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{
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#ifdef G4VERBOSE
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if (verboseLevel>2) {
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G4cout << "G4ParticleChangeForMSC::~G4ParticleChangeForMSC() " << G4endl;
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}
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#endif
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}
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G4ParticleChangeForMSC::
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G4ParticleChangeForMSC(const G4ParticleChangeForMSC &right)
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: G4VParticleChange(right)
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{
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if (verboseLevel>1) {
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G4cout << "G4ParticleChangeForMSC:: copy constructor is called " << G4endl;
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}
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theMomentumDirection = right.theMomentumDirection;
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thePosition = right.thePosition;
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}
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// assignment operator
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G4ParticleChangeForMSC & G4ParticleChangeForMSC::operator=(
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const G4ParticleChangeForMSC &right)
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{
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if (verboseLevel>1) {
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G4cout << "G4ParticleChangeForMSC:: assignment operator is called " << G4endl;
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}
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if (this != &right)
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{
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theListOfSecondaries = right.theListOfSecondaries;
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theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
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theNumberOfSecondaries = right.theNumberOfSecondaries;
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theStatusChange = right.theStatusChange;
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theLocalEnergyDeposit = right.theLocalEnergyDeposit;
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theSteppingControlFlag = right.theSteppingControlFlag;
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theTrueStepLength = right.theTrueStepLength;
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theMomentumDirection = right.theMomentumDirection;
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thePosition = right.thePosition;
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}
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return *this;
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}
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//----------------------------------------------------------------
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// methods for updating G4Step
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//
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G4Step* G4ParticleChangeForMSC::UpdateStepForAlongStep(G4Step* pStep)
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{
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// Update the G4Step specific attributes
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pStep->SetStepLength(theTrueStepLength);
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theStatusChange = pStep->GetTrack()->GetTrackStatus();
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// Multiple scattering calculates the final state of the particle
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G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
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// update momentum direction
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pPostStepPoint->SetMomentumDirection(theMomentumDirection);
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// update position
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pPostStepPoint->SetPosition( thePosition );
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return pStep;
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}
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G4Step* G4ParticleChangeForMSC::UpdateStepForPostStep(G4Step* pStep)
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{
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// Multiple scattering calculates the final state of the particle
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G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
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// update momentum direction
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pPostStepPoint->SetMomentumDirection(theMomentumDirection);
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// update position
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pPostStepPoint->SetPosition( thePosition );
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// Update the G4Step specific attributes
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return pStep;
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}
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//----------------------------------------------------------------
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// methods for printing messages
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//
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void G4ParticleChangeForMSC::DumpInfo() const
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{
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// use base-class DumpInfo
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G4VParticleChange::DumpInfo();
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G4int oldprc = G4cout.precision(3);
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G4cout << " Position - x (mm) : "
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<< std::setw(20) << thePosition.x()/mm
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<< G4endl;
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G4cout << " Position - y (mm) : "
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<< std::setw(20) << thePosition.y()/mm
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<< G4endl;
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G4cout << " Position - z (mm) : "
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<< std::setw(20) << thePosition.z()/mm
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<< G4endl;
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G4cout << " Momentum Direct - x : "
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<< std::setw(20) << theMomentumDirection.x()
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<< G4endl;
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G4cout << " Momentum Direct - y : "
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<< std::setw(20) << theMomentumDirection.y()
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<< G4endl;
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G4cout << " Momentum Direct - z : "
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<< std::setw(20) << theMomentumDirection.z()
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<< G4endl;
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G4cout.precision(oldprc);
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}
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G4bool G4ParticleChangeForMSC::CheckIt(const G4Track& aTrack)
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{
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G4bool itsOK = true;
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G4bool exitWithError = false;
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G4double accuracy;
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// check
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// MomentumDirection should be unit vector
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accuracy = std::fabs(theMomentumDirection.mag2()-1.0);
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if (accuracy > accuracyForWarning) {
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itsOK = false;
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exitWithError = (accuracy > accuracyForException);
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#ifdef G4VERBOSE
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G4cout << " G4ParticleChangeForMSC::CheckIt : ";
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G4cout << "the Momentum Change is not unit vector !!"
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<< " Difference: " << accuracy << G4endl;
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G4cout << aTrack.GetDefinition()->GetParticleName()
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<< " E=" << aTrack.GetKineticEnergy()/MeV
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<< " pos=" << aTrack.GetPosition().x()/m
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<< ", " << aTrack.GetPosition().y()/m
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<< ", " << aTrack.GetPosition().z()/m
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<<G4endl;
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#endif
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}
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// dump out information of this particle change
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#ifdef G4VERBOSE
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if (!itsOK) DumpInfo();
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#endif
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// Exit with error
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if (exitWithError) {
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G4Exception("G4ParticleChangeForMSC::CheckIt",
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"300",
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EventMustBeAborted,
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"momentum direction was illegal");
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}
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//correction
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if (!itsOK) {
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G4double vmag = theMomentumDirection.mag();
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theMomentumDirection = (1./vmag)*theMomentumDirection;
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}
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itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
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return itsOK;
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}
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