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25 // 25 //
26 // G4ParticleChangeForMSC class implementation <<
27 // 26 //
28 // Author: Hisaya Kurashige, 23 March 1998 << 27 // $Id: G4ParticleChangeForMSC.cc,v 1.13 2006/06/29 21:15:09 gunter Exp $
29 // Revision: Vladimir Ivantchenko, 16 January << 28 // GEANT4 tag $Name: geant4-08-02 $
30 // 23 August 2 << 29 //
31 // ------------------------------------------- << 30 //
>> 31 // --------------------------------------------------------------
>> 32 // GEANT 4 class implementation file
>> 33 //
>> 34 //
>> 35 //
>> 36 // ------------------------------------------------------------
>> 37 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
>> 38 // Update for model variant of msc 16 Jan 2004 V.Ivanchenko
>> 39 // --------------------------------------------------------------
32 40
33 #include "G4ParticleChangeForMSC.hh" 41 #include "G4ParticleChangeForMSC.hh"
34 #include "G4SystemOfUnits.hh" <<
35 #include "G4Track.hh" 42 #include "G4Track.hh"
36 #include "G4Step.hh" 43 #include "G4Step.hh"
>> 44 #include "G4DynamicParticle.hh"
37 #include "G4ExceptionSeverity.hh" 45 #include "G4ExceptionSeverity.hh"
38 46
39 // ------------------------------------------- << 47 G4ParticleChangeForMSC::G4ParticleChangeForMSC():G4VParticleChange()
40 G4ParticleChangeForMSC::G4ParticleChangeForMSC << 48 {
>> 49 #ifdef G4VERBOSE
>> 50 if (verboseLevel>2) {
>> 51 G4cout << "G4ParticleChangeForMSC::G4ParticleChangeForMSC() " << G4endl;
>> 52 }
>> 53 #endif
>> 54 }
>> 55
>> 56 G4ParticleChangeForMSC::~G4ParticleChangeForMSC()
>> 57 {
>> 58 #ifdef G4VERBOSE
>> 59 if (verboseLevel>2) {
>> 60 G4cout << "G4ParticleChangeForMSC::~G4ParticleChangeForMSC() " << G4endl;
>> 61 }
>> 62 #endif
>> 63 }
>> 64
>> 65 G4ParticleChangeForMSC::G4ParticleChangeForMSC(
>> 66 const G4ParticleChangeForMSC &right): G4VParticleChange(right)
>> 67 {
>> 68 if (verboseLevel>1) {
>> 69 G4cout << "G4ParticleChangeForMSC:: copy constructor is called " << G4endl;
>> 70 }
>> 71 theMomentumDirection = right.theMomentumDirection;
>> 72 thePosition = right.thePosition;
>> 73 }
>> 74
>> 75 // assignment operator
>> 76 G4ParticleChangeForMSC & G4ParticleChangeForMSC::operator=(
>> 77 const G4ParticleChangeForMSC &right)
41 { 78 {
42 // Disable flag that is enabled in G4VPartic << 79 if (verboseLevel>1) {
43 debugFlag = false; << 80 G4cout << "G4ParticleChangeForMSC:: assignment operator is called " << G4endl;
>> 81 }
>> 82 if (this != &right)
>> 83 {
>> 84 theListOfSecondaries = right.theListOfSecondaries;
>> 85 theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
>> 86 theNumberOfSecondaries = right.theNumberOfSecondaries;
>> 87 theStatusChange = right.theStatusChange;
>> 88 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 89 theSteppingControlFlag = right.theSteppingControlFlag;
>> 90 theTrueStepLength = right.theTrueStepLength;
>> 91
>> 92 theMomentumDirection = right.theMomentumDirection;
>> 93 thePosition = right.thePosition;
>> 94 }
>> 95 return *this;
44 } 96 }
45 97
46 // ------------------------------------------- << 98 //----------------------------------------------------------------
>> 99 // methods for updating G4Step
>> 100 //
>> 101
47 G4Step* G4ParticleChangeForMSC::UpdateStepForA 102 G4Step* G4ParticleChangeForMSC::UpdateStepForAlongStep(G4Step* pStep)
48 { 103 {
49 // update the G4Step specific attributes << 104 // Update the G4Step specific attributes
50 pStep->SetStepLength(theTrueStepLength); 105 pStep->SetStepLength(theTrueStepLength);
>> 106 theStatusChange = pStep->GetTrack()->GetTrackStatus();
>> 107 return pStep;
>> 108 }
51 109
52 // multiple scattering calculates the final << 110 G4Step* G4ParticleChangeForMSC::UpdateStepForPostStep(G4Step* pStep)
>> 111 {
>> 112 // A physics process always calculates the final state of the particle
53 G4StepPoint* pPostStepPoint = pStep->GetPost 113 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
54 114
55 // update momentum direction 115 // update momentum direction
56 pPostStepPoint->SetMomentumDirection(theMome 116 pPostStepPoint->SetMomentumDirection(theMomentumDirection);
57 117
58 // update position 118 // update position
59 pPostStepPoint->SetPosition(thePosition); << 119 pPostStepPoint->SetPosition( thePosition );
>> 120
>> 121 // Update the G4Step specific attributes
60 return pStep; 122 return pStep;
61 } 123 }
>> 124
>> 125
>> 126 //----------------------------------------------------------------
>> 127 // methods for printing messages
>> 128 //
>> 129
>> 130 void G4ParticleChangeForMSC::DumpInfo() const
>> 131 {
>> 132 // use base-class DumpInfo
>> 133 G4VParticleChange::DumpInfo();
>> 134
>> 135 G4cout.precision(3);
>> 136 G4cout << " Position - x (mm) : "
>> 137 << std::setw(20) << thePosition.x()/mm
>> 138 << G4endl;
>> 139 G4cout << " Position - y (mm) : "
>> 140 << std::setw(20) << thePosition.y()/mm
>> 141 << G4endl;
>> 142 G4cout << " Position - z (mm) : "
>> 143 << std::setw(20) << thePosition.z()/mm
>> 144 << G4endl;
>> 145 G4cout << " Momentum Direct - x : "
>> 146 << std::setw(20) << theMomentumDirection.x()
>> 147 << G4endl;
>> 148 G4cout << " Momentum Direct - y : "
>> 149 << std::setw(20) << theMomentumDirection.y()
>> 150 << G4endl;
>> 151 G4cout << " Momentum Direct - z : "
>> 152 << std::setw(20) << theMomentumDirection.z()
>> 153 << G4endl;
>> 154 }
>> 155
>> 156
>> 157 G4bool G4ParticleChangeForMSC::CheckIt(const G4Track& aTrack)
>> 158 {
>> 159 G4bool itsOK = true;
>> 160 G4bool exitWithError = false;
>> 161
>> 162 G4double accuracy;
>> 163
>> 164 // check
>> 165
>> 166 // MomentumDirection should be unit vector
>> 167 accuracy = std::abs(theMomentumDirection.mag2()-1.0);
>> 168 if (accuracy > accuracyForWarning) {
>> 169 #ifdef G4VERBOSE
>> 170 G4cout << " G4ParticleChangeForMSC::CheckIt : ";
>> 171 G4cout << "the Momentum Change is not unit vector !!" << G4endl;
>> 172 G4cout << " Difference: " << accuracy << G4endl;
>> 173 #endif
>> 174 itsOK = false;
>> 175 if (accuracy > accuracyForException) exitWithError = true;
>> 176 }
>> 177
>> 178 // dump out information of this particle change
>> 179 #ifdef G4VERBOSE
>> 180 if (!itsOK) {
>> 181 G4cout << " G4ParticleChangeForMSC::CheckIt " <<G4endl;
>> 182 DumpInfo();
>> 183 }
>> 184 #endif
>> 185
>> 186 // Exit with error
>> 187 if (exitWithError) {
>> 188 G4Exception("G4ParticleChangeForMSC::CheckIt",
>> 189 "300",
>> 190 EventMustBeAborted,
>> 191 "momentum direction was illegal");
>> 192 }
>> 193 //correction
>> 194 if (!itsOK) {
>> 195 G4double vmag = theMomentumDirection.mag();
>> 196 theMomentumDirection = (1./vmag)*theMomentumDirection;
>> 197 }
>> 198
>> 199 itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
>> 200 return itsOK;
>> 201 }
>> 202
>> 203
>> 204
62 205
63 206