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25 // 25 //
26 // G4ParticleChangeForMSC class implementation 26 // G4ParticleChangeForMSC class implementation
27 // 27 //
28 // Author: Hisaya Kurashige, 23 March 1998 28 // Author: Hisaya Kurashige, 23 March 1998
29 // Revision: Vladimir Ivantchenko, 16 January 29 // Revision: Vladimir Ivantchenko, 16 January 2004
30 // 23 August 2 <<
31 // ------------------------------------------- 30 // --------------------------------------------------------------------
32 31
33 #include "G4ParticleChangeForMSC.hh" 32 #include "G4ParticleChangeForMSC.hh"
34 #include "G4SystemOfUnits.hh" 33 #include "G4SystemOfUnits.hh"
35 #include "G4Track.hh" 34 #include "G4Track.hh"
36 #include "G4Step.hh" 35 #include "G4Step.hh"
>> 36 #include "G4DynamicParticle.hh"
37 #include "G4ExceptionSeverity.hh" 37 #include "G4ExceptionSeverity.hh"
38 38
39 // ------------------------------------------- 39 // --------------------------------------------------------------------
40 G4ParticleChangeForMSC::G4ParticleChangeForMSC << 40 G4ParticleChangeForMSC::G4ParticleChangeForMSC()
>> 41 : G4VParticleChange()
41 { 42 {
42 // Disable flag that is enabled in G4VPartic << 43 }
43 debugFlag = false; << 44
>> 45 // --------------------------------------------------------------------
>> 46 G4ParticleChangeForMSC::~G4ParticleChangeForMSC()
>> 47 {
>> 48 }
>> 49
>> 50 // --------------------------------------------------------------------
>> 51 G4ParticleChangeForMSC::
>> 52 G4ParticleChangeForMSC(const G4ParticleChangeForMSC& right)
>> 53 : G4VParticleChange(right)
>> 54 {
>> 55 theMomentumDirection = right.theMomentumDirection;
>> 56 thePosition = right.thePosition;
>> 57 }
>> 58
>> 59 // --------------------------------------------------------------------
>> 60 G4ParticleChangeForMSC&
>> 61 G4ParticleChangeForMSC::operator=(const G4ParticleChangeForMSC& right)
>> 62 {
>> 63 if(this != &right)
>> 64 {
>> 65 theListOfSecondaries = right.theListOfSecondaries;
>> 66 theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
>> 67 theNumberOfSecondaries = right.theNumberOfSecondaries;
>> 68 theStatusChange = right.theStatusChange;
>> 69 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 70 theSteppingControlFlag = right.theSteppingControlFlag;
>> 71 theTrueStepLength = right.theTrueStepLength;
>> 72
>> 73 theMomentumDirection = right.theMomentumDirection;
>> 74 thePosition = right.thePosition;
>> 75 }
>> 76 return *this;
44 } 77 }
45 78
46 // ------------------------------------------- 79 // --------------------------------------------------------------------
47 G4Step* G4ParticleChangeForMSC::UpdateStepForA 80 G4Step* G4ParticleChangeForMSC::UpdateStepForAlongStep(G4Step* pStep)
48 { 81 {
49 // update the G4Step specific attributes 82 // update the G4Step specific attributes
50 pStep->SetStepLength(theTrueStepLength); 83 pStep->SetStepLength(theTrueStepLength);
>> 84 theStatusChange = pStep->GetTrack()->GetTrackStatus();
51 85
52 // multiple scattering calculates the final 86 // multiple scattering calculates the final state of the particle
53 G4StepPoint* pPostStepPoint = pStep->GetPost 87 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
54 88
55 // update momentum direction 89 // update momentum direction
56 pPostStepPoint->SetMomentumDirection(theMome 90 pPostStepPoint->SetMomentumDirection(theMomentumDirection);
57 91
58 // update position 92 // update position
59 pPostStepPoint->SetPosition(thePosition); 93 pPostStepPoint->SetPosition(thePosition);
60 return pStep; 94 return pStep;
61 } 95 }
62 96
>> 97 // --------------------------------------------------------------------
>> 98 G4Step* G4ParticleChangeForMSC::UpdateStepForPostStep(G4Step* pStep)
>> 99 {
>> 100 // multiple scattering calculates the final state of the particle
>> 101 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
>> 102
>> 103 // update momentum direction
>> 104 pPostStepPoint->SetMomentumDirection(theMomentumDirection);
>> 105
>> 106 // update position
>> 107 pPostStepPoint->SetPosition(thePosition);
>> 108
>> 109 // update the G4Step specific attributes
>> 110 return pStep;
>> 111 }
>> 112
>> 113 // --------------------------------------------------------------------
>> 114 void G4ParticleChangeForMSC::DumpInfo() const
>> 115 {
>> 116 // use base-class DumpInfo
>> 117 G4VParticleChange::DumpInfo();
>> 118
>> 119 G4int oldprc = G4cout.precision(3);
>> 120 G4cout << " Position - x (mm) : " << std::setw(20)
>> 121 << thePosition.x() / mm << G4endl;
>> 122 G4cout << " Position - y (mm) : " << std::setw(20)
>> 123 << thePosition.y() / mm << G4endl;
>> 124 G4cout << " Position - z (mm) : " << std::setw(20)
>> 125 << thePosition.z() / mm << G4endl;
>> 126 G4cout << " Momentum Direct - x : " << std::setw(20)
>> 127 << theMomentumDirection.x() << G4endl;
>> 128 G4cout << " Momentum Direct - y : " << std::setw(20)
>> 129 << theMomentumDirection.y() << G4endl;
>> 130 G4cout << " Momentum Direct - z : " << std::setw(20)
>> 131 << theMomentumDirection.z() << G4endl;
>> 132 G4cout.precision(oldprc);
>> 133 }
>> 134
>> 135 // --------------------------------------------------------------------
>> 136 G4bool G4ParticleChangeForMSC::CheckIt(const G4Track& aTrack)
>> 137 {
>> 138 G4bool itsOK = true;
>> 139 G4bool exitWithError = false;
>> 140
>> 141 G4double accuracy;
>> 142
>> 143 // check
>> 144
>> 145 // MomentumDirection should be unit vector
>> 146 accuracy = std::fabs(theMomentumDirection.mag2() - 1.0);
>> 147 if(accuracy > accuracyForWarning)
>> 148 {
>> 149 itsOK = false;
>> 150 exitWithError = (accuracy > accuracyForException);
>> 151 #ifdef G4VERBOSE
>> 152 G4cout << " G4ParticleChangeForMSC::CheckIt : ";
>> 153 G4cout << "the Momentum Change is not unit vector !!"
>> 154 << " Difference: " << accuracy << G4endl;
>> 155 G4cout << aTrack.GetDefinition()->GetParticleName()
>> 156 << " E=" << aTrack.GetKineticEnergy() / MeV
>> 157 << " pos=" << aTrack.GetPosition().x() / m << ", "
>> 158 << aTrack.GetPosition().y() / m << ", "
>> 159 << aTrack.GetPosition().z() / m << G4endl;
>> 160 #endif
>> 161 }
>> 162
>> 163 // dump out information of this particle change
>> 164 #ifdef G4VERBOSE
>> 165 if(!itsOK) { DumpInfo(); }
>> 166 #endif
>> 167
>> 168 // exit with error
>> 169 if(exitWithError)
>> 170 {
>> 171 G4Exception("G4ParticleChangeForMSC::CheckIt()", "300", EventMustBeAborted,
>> 172 "momentum direction was illegal");
>> 173 }
>> 174 // correction
>> 175 if(!itsOK)
>> 176 {
>> 177 G4double vmag = theMomentumDirection.mag();
>> 178 theMomentumDirection = (1. / vmag) * theMomentumDirection;
>> 179 }
>> 180
>> 181 itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
>> 182 return itsOK;
>> 183 }
63 184