LEMuSR Particle Change for Multiple Scattering.
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paraiso
238
geant4/LEMuSR/src/LEMuSRParticleChangeForMSC.cc
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238
geant4/LEMuSR/src/LEMuSRParticleChangeForMSC.cc
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//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: LEMuSRParticleChangeForMSC.cc,v 1.12 2004/12/02 06:38:05 kurasige Exp $
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// GEANT4 tag $Name: geant4-07-01 $
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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 "LEMuSRParticleChangeForMSC.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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LEMuSRParticleChangeForMSC::LEMuSRParticleChangeForMSC():G4VParticleChange()
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{
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Post_Update=false;
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#ifdef G4VERBOSE
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if (verboseLevel>2) {
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G4cout << "LEMuSRParticleChangeForMSC::LEMuSRParticleChangeForMSC() " << G4endl;
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}
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#endif
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}
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LEMuSRParticleChangeForMSC::~LEMuSRParticleChangeForMSC()
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{
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#ifdef G4VERBOSE
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if (verboseLevel>2) {
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G4cout << "LEMuSRParticleChangeForMSC::~LEMuSRParticleChangeForMSC() " << G4endl;
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}
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#endif
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}
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LEMuSRParticleChangeForMSC::LEMuSRParticleChangeForMSC(
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const LEMuSRParticleChangeForMSC &right): G4VParticleChange(right)
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{
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if (verboseLevel>1) {
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G4cout << "LEMuSRParticleChangeForMSC:: 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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LEMuSRParticleChangeForMSC & LEMuSRParticleChangeForMSC::operator=(
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const LEMuSRParticleChangeForMSC &right)
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{
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if (verboseLevel>1) {
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G4cout << "LEMuSRParticleChangeForMSC:: 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* LEMuSRParticleChangeForMSC::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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// DumpInfo();
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return pStep;
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}
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G4Step* LEMuSRParticleChangeForMSC::UpdateStepForPostStep(G4Step* pStep)
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{
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G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
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/* G4cout << "POST STEP UPDATE DATA: " ;
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G4cout.precision(6);
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G4cout << " Energy [MeV] : "
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<< std::setw(20) <<
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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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*/
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// theStatusChange = pStep->GetTrack()->GetTrackStatus();
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// A physics process always calculates the final state of the particle
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// update position
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pPostStepPoint->SetPosition( thePosition );
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// update momentum direction
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// G4cout<<"Momentum to set: "<<theMomentumDirection<<G4endl;
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pPostStepPoint->SetMomentumDirection(theMomentumDirection);
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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 LEMuSRParticleChangeForMSC::DumpInfo() const
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{
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// use base-class DumpInfo
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G4VParticleChange::DumpInfo();
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G4cout.precision(6);
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G4cout << " Energy [MeV] : "
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<< std::setw(20) <<
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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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}
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G4bool LEMuSRParticleChangeForMSC::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::abs(theMomentumDirection.mag2()-1.0);
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if (accuracy > accuracyForWarning) {
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#ifdef G4VERBOSE
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G4cout << " LEMuSRParticleChangeForMSC::CheckIt : ";
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G4cout << "the Momentum Change is not unit vector !!" << G4endl;
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G4cout << " Difference: " << accuracy << G4endl;
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#endif
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itsOK = false;
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if (accuracy > accuracyForException) exitWithError = true;
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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) {
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G4cout << " LEMuSRParticleChangeForMSC::CheckIt " <<G4endl;
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DumpInfo();
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}
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#endif
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// Exit with error
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if (exitWithError) {
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G4Exception("LEMuSRParticleChangeForMSC::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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