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25 // 22 //
26 // G4ParticleChangeForLoss class implementatio <<
27 // 23 //
28 // Author: Hisaya Kurashige, 23 March 1998 << 24 // $Id: G4ParticleChangeForLoss.cc,v 1.13 2004/06/15 08:17:38 vnivanch Exp $
29 // Revision: Vladimir Ivantchenko, 16 January << 25 // GEANT4 tag $Name: geant4-07-00-cand-01 $
30 // ------------------------------------------- << 26 //
31 << 27 //
>> 28 // --------------------------------------------------------------
>> 29 // GEANT 4 class implementation file
>> 30 //
>> 31 // ------------------------------------------------------------
>> 32 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
>> 33 // --------------------------------------------------------------
>> 34 //
>> 35 // Modified:
>> 36 // 16.01.04 V.Ivanchenko update for model variant of energy loss
>> 37 //
>> 38 // ------------------------------------------------------------
>> 39 //
32 #include "G4ParticleChangeForLoss.hh" 40 #include "G4ParticleChangeForLoss.hh"
33 #include "G4SystemOfUnits.hh" << 41 #include "G4Track.hh"
>> 42 #include "G4Step.hh"
>> 43 #include "G4DynamicParticle.hh"
34 #include "G4ExceptionSeverity.hh" 44 #include "G4ExceptionSeverity.hh"
35 45
36 // ------------------------------------------- << 46 G4ParticleChangeForLoss::G4ParticleChangeForLoss():G4VParticleChange()
37 G4ParticleChangeForLoss::G4ParticleChangeForLo <<
38 { 47 {
39 // Disable flag that is enabled in G4VPartic << 48 theSteppingControlFlag = NormalCondition;
40 debugFlag = false; 49 debugFlag = false;
41 SetNumberOfSecondaries(1); << 50 #ifdef G4VERBOSE
>> 51 if (verboseLevel>2) {
>> 52 G4cout << "G4ParticleChangeForLoss::G4ParticleChangeForLoss() " << G4endl;
>> 53 }
>> 54 #endif
42 } 55 }
43 56
44 // ------------------------------------------- << 57 G4ParticleChangeForLoss::~G4ParticleChangeForLoss()
45 void G4ParticleChangeForLoss::DumpInfo() const <<
46 { 58 {
47 // use base-class DumpInfo << 59 #ifdef G4VERBOSE
48 G4VParticleChange::DumpInfo(); << 60 if (verboseLevel>2) {
>> 61 G4cout << "G4ParticleChangeForLoss::~G4ParticleChangeForLoss() " << G4endl;
>> 62 }
>> 63 #endif
>> 64 }
>> 65
>> 66 G4ParticleChangeForLoss::G4ParticleChangeForLoss(
>> 67 const G4ParticleChangeForLoss &right): G4VParticleChange(right)
>> 68 {
>> 69 if (verboseLevel>1) {
>> 70 G4cout << "G4ParticleChangeForLoss:: copy constructor is called " << G4endl;
>> 71 }
>> 72 currentTrack = right.currentTrack;
>> 73 proposedKinEnergy = right.proposedKinEnergy;
>> 74 currentCharge = right.currentCharge;
>> 75 //theProposedWeight = right.theProposedWeight;
>> 76 proposedMomentumDirection = right.proposedMomentumDirection;
>> 77 }
49 78
50 G4long oldprc = G4cout.precision(8); << 79 // assignment operator
51 G4cout << " --------------------------- << 80 G4ParticleChangeForLoss & G4ParticleChangeForLoss::operator=(
52 G4cout << " G4ParticleChangeForLoss p << 81 const G4ParticleChangeForLoss &right)
53 G4cout << " Charge (eplus) : " << s << 82 {
54 << currentCharge / eplus << G4endl; << 83 if (verboseLevel>1) {
55 G4cout << " Kinetic Energy (MeV): " < << 84 G4cout << "G4ParticleChangeForLoss:: assignment operator is called " << G4endl;
56 << proposedKinEnergy / MeV << G4endl; << 85 }
57 G4cout << " Momentum Direct - x : " < << 86 if (this != &right)
58 << proposedMomentumDirection.x() << G << 87 {
59 G4cout << " Momentum Direct - y : " < << 88 theListOfSecondaries = right.theListOfSecondaries;
60 << proposedMomentumDirection.y() << G << 89 theSizeOftheListOfSecondaries = right.theSizeOftheListOfSecondaries;
61 G4cout << " Momentum Direct - z : " < << 90 theNumberOfSecondaries = right.theNumberOfSecondaries;
62 << proposedMomentumDirection.z() << G << 91 theStatusChange = right.theStatusChange;
63 G4cout.precision(oldprc); << 92 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 93 theSteppingControlFlag = right.theSteppingControlFlag;
>> 94
>> 95 currentTrack = right.currentTrack;
>> 96 proposedKinEnergy = right.proposedKinEnergy;
>> 97 currentCharge = right.currentCharge;
>> 98 //theProposedWeight = right.theProposedWeight;
>> 99 proposedMomentumDirection = right.proposedMomentumDirection;
>> 100 }
>> 101 return *this;
64 } 102 }
65 103
66 // ------------------------------------------- << 104 //----------------------------------------------------------------
>> 105 // methods for updating G4Step
>> 106 //
>> 107
67 G4Step* G4ParticleChangeForLoss::UpdateStepFor 108 G4Step* G4ParticleChangeForLoss::UpdateStepForAlongStep(G4Step* pStep)
68 { 109 {
69 const G4StepPoint* pPreStepPoint = pStep->Ge << 110 // A physics process always calculates the final state of the
>> 111 // particle relative to the initial state at the beginning
>> 112 // of the Step, i.e., based on information of G4Track (or
>> 113 // equivalently the PreStepPoint).
>> 114 // So, the differences (delta) between these two states have to be
>> 115 // calculated and be accumulated in PostStepPoint.
>> 116
>> 117 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint();
70 G4StepPoint* pPostStepPoint = pStep->GetPost 118 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
71 119
72 // accumulate change of the kinetic energy << 120 // calculate new kinetic energy
73 G4double preKinEnergy = pPreStepPoint->GetKi << 121 G4double kinEnergy = pPostStepPoint->GetKineticEnergy()
74 G4double kinEnergy = << 122 + (proposedKinEnergy - pPreStepPoint->GetKineticEnergy());
75 pPostStepPoint->GetKineticEnergy() + (prop << 123
76 << 124 // update kinetic energy and momentum direction
77 pPostStepPoint->SetCharge(currentCharge); << 125 if (kinEnergy < 0.0) {
78 << 126 theLocalEnergyDeposit += kinEnergy;
79 // calculate velocity << 127 kinEnergy = 0.0;
80 if(kinEnergy > 0.0) <<
81 { <<
82 pPostStepPoint->SetKineticEnergy(kinEnergy <<
83 <<
84 // assuming that mass>0, zero mass particl <<
85 pPostStepPoint->SetVelocity(CLHEP::c_light <<
86 } <<
87 else <<
88 { <<
89 pPostStepPoint->SetKineticEnergy(0.0); <<
90 pPostStepPoint->SetVelocity(0.0); <<
91 } <<
92 <<
93 if(isParentWeightProposed) <<
94 { <<
95 pPostStepPoint->SetWeight(theParentWeight) <<
96 } 128 }
97 129
98 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 130 pPostStepPoint->SetKineticEnergy( kinEnergy );
99 pStep->AddNonIonizingEnergyDeposit(theNonIon << 131 pPostStepPoint->SetCharge( currentCharge );
>> 132
>> 133 // update weight
>> 134 // this feature is commented out, it should be overwritten in case
>> 135 // if energy loss processes will use biasing
>> 136 // G4double newWeight = theProposedWeight/(pPreStepPoint->GetWeight())*(pPostStepPoint->GetWeight());
>> 137 // pPostStepPoint->SetWeight( newWeight );
>> 138
>> 139
>> 140 // Not necessary to check now
>> 141 //#ifdef G4VERBOSE
>> 142 // if (debugFlag) CheckIt(*aTrack);
>> 143 //#endif
>> 144
>> 145 // Update the G4Step specific attributes
>> 146 pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
100 return pStep; 147 return pStep;
101 } 148 }
102 149
103 // ------------------------------------------- <<
104 G4Step* G4ParticleChangeForLoss::UpdateStepFor 150 G4Step* G4ParticleChangeForLoss::UpdateStepForPostStep(G4Step* pStep)
105 { 151 {
>> 152 // A physics process always calculates the final state of the
>> 153 // particle relative to the initial state at the beginning
>> 154 // of the Step, i.e., based on information of G4Track (or
>> 155 // equivalently the PreStepPoint).
>> 156 // So, the differences (delta) between these two states have to be
>> 157 // calculated and be accumulated in PostStepPoint.
>> 158
106 G4StepPoint* pPostStepPoint = pStep->GetPost 159 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
107 160
108 pPostStepPoint->SetCharge(currentCharge); << 161 pPostStepPoint->SetKineticEnergy( proposedKinEnergy );
109 pPostStepPoint->SetMomentumDirection(propose << 162 pPostStepPoint->SetCharge( currentCharge );
110 if(proposedKinEnergy > 0.0) << 163 pPostStepPoint->SetMomentumDirection( proposedMomentumDirection );
111 { << 164
112 pPostStepPoint->SetKineticEnergy(proposedK << 165 // update weight
>> 166 // this feature is commented out, it should be overwritten in case
>> 167 // if energy loss processes will use biasing
>> 168 // pPostStepPoint->SetWeight( theProposedWeight );
>> 169
>> 170 // Not necessary to check now
>> 171 //#ifdef G4VERBOSE
>> 172 // if (debugFlag) CheckIt(*aTrack);
>> 173 //#endif
>> 174
>> 175 // Update the G4Step specific attributes
>> 176 pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
>> 177 return pStep;
>> 178 }
>> 179
>> 180 //----------------------------------------------------------------
>> 181 // methods for printing messages
>> 182 //
>> 183
>> 184 void G4ParticleChangeForLoss::DumpInfo() const
>> 185 {
>> 186 // use base-class DumpInfo
>> 187 G4VParticleChange::DumpInfo();
>> 188
>> 189 G4cout.precision(3);
>> 190 G4cout << " Charge (eplus) : "
>> 191 << std::setw(20) << currentCharge/eplus
>> 192 << G4endl;
>> 193 G4cout << " Kinetic Energy (MeV): "
>> 194 << std::setw(20) << proposedKinEnergy/MeV
>> 195 << G4endl;
>> 196 G4cout << " Momentum Direct - x : "
>> 197 << std::setw(20) << proposedMomentumDirection.x()
>> 198 << G4endl;
>> 199 G4cout << " Momentum Direct - y : "
>> 200 << std::setw(20) << proposedMomentumDirection.y()
>> 201 << G4endl;
>> 202 G4cout << " Momentum Direct - z : "
>> 203 << std::setw(20) << proposedMomentumDirection.z()
>> 204 << G4endl;
>> 205 }
>> 206
>> 207 G4bool G4ParticleChangeForLoss::CheckIt(const G4Track& aTrack)
>> 208 {
>> 209 G4bool itsOK = true;
>> 210 G4bool exitWithError = false;
>> 211
>> 212 G4double accuracy;
113 213
114 // assuming that mass>0, zero mass particl << 214 // Energy should not be lager than initial value
115 pPostStepPoint->SetVelocity(CLHEP::c_light << 215 accuracy = ( proposedKinEnergy - aTrack.GetKineticEnergy())/MeV;
>> 216 if (accuracy > accuracyForWarning) {
>> 217 #ifdef G4VERBOSE
>> 218 G4cout << "G4ParticleChangeForLoss::CheckIt: ";
>> 219 G4cout << "KinEnergy become larger than the initial value!" << G4endl;
>> 220 G4cout << " Difference: " << accuracy << "[MeV] " <<G4endl;
>> 221 #endif
>> 222 itsOK = false;
>> 223 if (accuracy > accuracyForException) exitWithError = true;
116 } 224 }
117 else << 225
118 { << 226 // dump out information of this particle change
119 pPostStepPoint->SetKineticEnergy(0.0); << 227 #ifdef G4VERBOSE
120 pPostStepPoint->SetVelocity(0.0); << 228 if (!itsOK) {
>> 229 G4cout << "G4ParticleChangeForLoss::CheckIt " << G4endl;
>> 230 DumpInfo();
121 } 231 }
122 pPostStepPoint->SetPolarization(proposedPola << 232 #endif
123 233
124 if(isParentWeightProposed) << 234 // Exit with error
125 { << 235 if (exitWithError) {
126 pPostStepPoint->SetWeight(theParentWeight) << 236 G4Exception("G4ParticleChangeForLoss::CheckIt",
>> 237 "400",
>> 238 EventMustBeAborted,
>> 239 "energy was illegal");
127 } 240 }
128 241
129 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 242 //correction
130 pStep->AddNonIonizingEnergyDeposit(theNonIon << 243 if (!itsOK) {
131 return pStep; << 244 proposedKinEnergy = aTrack.GetKineticEnergy();
>> 245 }
>> 246
>> 247 itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
>> 248 return itsOK;
132 } 249 }
133 250