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25 // 22 //
26 // G4ParticleChangeForLoss class implementatio <<
27 // 23 //
28 // Author: Hisaya Kurashige, 23 March 1998 << 24 // $Id: G4ParticleChangeForLoss.cc,v 1.6 2001/07/11 10:08:39 gunter Exp $
29 // Revision: Vladimir Ivantchenko, 16 January << 25 // GEANT4 tag $Name: geant4-05-00 $
30 // ------------------------------------------- << 26 //
>> 27 //
>> 28 // --------------------------------------------------------------
>> 29 // GEANT 4 class implementation file
>> 30 //
>> 31 //
>> 32 //
>> 33 // ------------------------------------------------------------
>> 34 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
>> 35 // --------------------------------------------------------------
31 36
32 #include "G4ParticleChangeForLoss.hh" 37 #include "G4ParticleChangeForLoss.hh"
33 #include "G4SystemOfUnits.hh" << 38 #include "G4Track.hh"
34 #include "G4ExceptionSeverity.hh" << 39 #include "G4Step.hh"
>> 40 #include "G4TrackFastVector.hh"
>> 41 #include "G4DynamicParticle.hh"
35 42
36 // ------------------------------------------- << 43 G4ParticleChangeForLoss::G4ParticleChangeForLoss():G4VParticleChange()
37 G4ParticleChangeForLoss::G4ParticleChangeForLo <<
38 { 44 {
39 // Disable flag that is enabled in G4VPartic <<
40 debugFlag = false; 45 debugFlag = false;
41 SetNumberOfSecondaries(1); << 46 #ifdef G4VERBOSE
>> 47 if (verboseLevel>2) {
>> 48 G4cout << "G4ParticleChangeForLoss::G4ParticleChangeForLoss() " << G4endl;
>> 49 }
>> 50 #endif
42 } 51 }
43 52
44 // ------------------------------------------- << 53 G4ParticleChangeForLoss::~G4ParticleChangeForLoss()
45 void G4ParticleChangeForLoss::DumpInfo() const <<
46 { 54 {
47 // use base-class DumpInfo << 55 #ifdef G4VERBOSE
48 G4VParticleChange::DumpInfo(); << 56 if (verboseLevel>2) {
>> 57 G4cout << "G4ParticleChangeForLoss::~G4ParticleChangeForLoss() " << G4endl;
>> 58 }
>> 59 #endif
>> 60 }
49 61
50 G4long oldprc = G4cout.precision(8); << 62 // copy constructor
51 G4cout << " --------------------------- << 63 G4ParticleChangeForLoss::G4ParticleChangeForLoss(const G4ParticleChangeForLoss &right): G4VParticleChange(right)
52 G4cout << " G4ParticleChangeForLoss p << 64 {
53 G4cout << " Charge (eplus) : " << s << 65 if (verboseLevel>1) {
54 << currentCharge / eplus << G4endl; << 66 G4cout << "G4ParticleChangeForLoss:: copy constructor is called " << G4endl;
55 G4cout << " Kinetic Energy (MeV): " < << 67 }
56 << proposedKinEnergy / MeV << G4endl; << 68 theEnergyChange = right.theEnergyChange;
57 G4cout << " Momentum Direct - x : " < <<
58 << proposedMomentumDirection.x() << G <<
59 G4cout << " Momentum Direct - y : " < <<
60 << proposedMomentumDirection.y() << G <<
61 G4cout << " Momentum Direct - z : " < <<
62 << proposedMomentumDirection.z() << G <<
63 G4cout.precision(oldprc); <<
64 } 69 }
65 70
66 // ------------------------------------------- << 71 // assignemnt operator
67 G4Step* G4ParticleChangeForLoss::UpdateStepFor << 72 G4ParticleChangeForLoss & G4ParticleChangeForLoss::operator=(const G4ParticleChangeForLoss &right)
68 { 73 {
69 const G4StepPoint* pPreStepPoint = pStep->Ge << 74 if (verboseLevel>1) {
70 G4StepPoint* pPostStepPoint = pStep->GetPost << 75 G4cout << "G4ParticleChangeForLoss:: assignment operator is called " << G4endl;
>> 76 }
>> 77 if (this != &right)
>> 78 {
>> 79 theListOfSecondaries = right.theListOfSecondaries;
>> 80 theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
>> 81 theNumberOfSecondaries = right.theNumberOfSecondaries;
>> 82 theStatusChange = right.theStatusChange;
>> 83 theTrueStepLength = right.theTrueStepLength;
>> 84 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 85 theSteppingControlFlag = right.theSteppingControlFlag;
>> 86
>> 87 theEnergyChange = right.theEnergyChange;
>> 88 theLocalEnergyDeposit = right.theLocalEnergyDeposit ;
>> 89 }
>> 90 return *this;
>> 91 }
>> 92
71 93
72 // accumulate change of the kinetic energy << 94 //----------------------------------------------------------------
73 G4double preKinEnergy = pPreStepPoint->GetKi << 95 // functions for Initialization
74 G4double kinEnergy = << 96 //
75 pPostStepPoint->GetKineticEnergy() + (prop << 97
76 << 98 void G4ParticleChangeForLoss::Initialize(const G4Track& track)
77 pPostStepPoint->SetCharge(currentCharge); << 99 {
78 << 100 // use base class's method at first
79 // calculate velocity << 101 G4VParticleChange::Initialize(track);
80 if(kinEnergy > 0.0) << 102
81 { << 103 // set Energy equal to those of the parent particle
82 pPostStepPoint->SetKineticEnergy(kinEnergy << 104 const G4DynamicParticle* pParticle = track.GetDynamicParticle();
83 << 105 theEnergyChange = pParticle->GetKineticEnergy();
84 // assuming that mass>0, zero mass particl << 106 }
85 pPostStepPoint->SetVelocity(CLHEP::c_light << 107
86 } << 108 //----------------------------------------------------------------
87 else << 109 // methods for updating G4Step
88 { << 110 //
>> 111
>> 112 G4Step* G4ParticleChangeForLoss::UpdateStepForAlongStep(G4Step* pStep)
>> 113 {
>> 114 // A physics process always calculates the final state of the
>> 115 // particle relative to the initial state at the beginning
>> 116 // of the Step, i.e., based on information of G4Track (or
>> 117 // equivalently the PreStepPoint).
>> 118 // So, the differences (delta) between these two states have to be
>> 119 // calculated and be accumulated in PostStepPoint.
>> 120
>> 121
>> 122 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint();
>> 123 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
>> 124 G4Track* aTrack = pStep->GetTrack();
>> 125
>> 126 // calculate new kinetic energy
>> 127 G4double energy = pPostStepPoint->GetKineticEnergy()
>> 128 + (theEnergyChange - pPreStepPoint->GetKineticEnergy());
>> 129
>> 130 // update kinetic energy and momentum direction
>> 131 if (energy > 0.0) {
>> 132 pPostStepPoint->SetKineticEnergy( energy );
>> 133 } else {
>> 134 // stop case
89 pPostStepPoint->SetKineticEnergy(0.0); 135 pPostStepPoint->SetKineticEnergy(0.0);
90 pPostStepPoint->SetVelocity(0.0); <<
91 } 136 }
92 137
93 if(isParentWeightProposed) << 138 #ifdef G4VERBOSE
94 { << 139 if (debugFlag) CheckIt(*aTrack);
95 pPostStepPoint->SetWeight(theParentWeight) << 140 #endif
96 } <<
97 141
98 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 142 // Update the G4Step specific attributes
99 pStep->AddNonIonizingEnergyDeposit(theNonIon << 143 return UpdateStepInfo(pStep);
100 return pStep; <<
101 } 144 }
102 145
103 // ------------------------------------------- << 146 //----------------------------------------------------------------
104 G4Step* G4ParticleChangeForLoss::UpdateStepFor << 147 // methods for printing messages
>> 148 //
>> 149
>> 150 void G4ParticleChangeForLoss::DumpInfo() const
105 { 151 {
106 G4StepPoint* pPostStepPoint = pStep->GetPost << 152 // use base-class DumpInfo
>> 153 G4VParticleChange::DumpInfo();
107 154
108 pPostStepPoint->SetCharge(currentCharge); << 155 G4cout.precision(3);
109 pPostStepPoint->SetMomentumDirection(propose << 156 G4cout << " Kinetic Energy (MeV): "
110 if(proposedKinEnergy > 0.0) << 157 << G4std::setw(20) << theEnergyChange/MeV
111 { << 158 << G4endl;
112 pPostStepPoint->SetKineticEnergy(proposedK << 159 }
>> 160
>> 161 G4bool G4ParticleChangeForLoss::CheckIt(const G4Track& aTrack)
>> 162 {
>> 163 G4bool itsOK = true;
>> 164 G4bool exitWithError = false;
113 165
114 // assuming that mass>0, zero mass particl << 166 G4double accuracy;
115 pPostStepPoint->SetVelocity(CLHEP::c_light << 167
>> 168 // Energy should not be lager than initial value
>> 169 accuracy = ( theEnergyChange - aTrack.GetKineticEnergy())/MeV;
>> 170 if (accuracy > accuracyForWarning) {
>> 171 G4cout << " G4ParticleChangeForLoss::CheckIt : ";
>> 172 G4cout << "the energy becoes larger than the initial value !!" << G4endl;
>> 173 G4cout << " Difference: " << accuracy << "[MeV] " <<G4endl;
>> 174 itsOK = false;
>> 175 if (accuracy > accuracyForException) exitWithError = true;
116 } 176 }
117 else << 177
118 { << 178 // dump out information of this particle change
119 pPostStepPoint->SetKineticEnergy(0.0); << 179 if (!itsOK) {
120 pPostStepPoint->SetVelocity(0.0); << 180 G4cout << " G4ParticleChangeForLoss::CheckIt " <<G4endl;
>> 181 DumpInfo();
121 } 182 }
122 pPostStepPoint->SetPolarization(proposedPola <<
123 183
124 if(isParentWeightProposed) << 184 // Exit with error
125 { << 185 if (exitWithError) G4Exception("G4ParticleChangeForLoss::CheckIt");
126 pPostStepPoint->SetWeight(theParentWeight) << 186
>> 187 //correction
>> 188 if (!itsOK) {
>> 189 theEnergyChange = aTrack.GetKineticEnergy();
127 } 190 }
128 191
129 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 192 itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
130 pStep->AddNonIonizingEnergyDeposit(theNonIon << 193 return itsOK;
131 return pStep; <<
132 } 194 }
>> 195
>> 196
>> 197
>> 198
>> 199
>> 200
>> 201
>> 202
>> 203
>> 204
>> 205
>> 206
133 207