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25 // 25 //
26 // G4ParticleChangeForLoss class implementatio <<
27 // 26 //
28 // Author: Hisaya Kurashige, 23 March 1998 << 27 // $Id: G4ParticleChangeForLoss.cc,v 1.18 2010-07-21 09:30:15 gcosmo Exp $
29 // Revision: Vladimir Ivantchenko, 16 January << 28 // GEANT4 tag $Name: not supported by cvs2svn $
30 // ------------------------------------------- << 29 //
31 << 30 //
>> 31 // --------------------------------------------------------------
>> 32 // GEANT 4 class implementation file
>> 33 //
>> 34 // ------------------------------------------------------------
>> 35 // Implemented for the new scheme 23 Mar. 1998 H.Kurahige
>> 36 // --------------------------------------------------------------
>> 37 //
>> 38 // Modified:
>> 39 // 16.01.04 V.Ivanchenko update for model variant of energy loss
>> 40 // 15.04.05 V.Ivanchenko inline update methods
>> 41 // 28.08.06 V.Ivanchenko Add access to current track and polarizaion
>> 42 //
>> 43 // ------------------------------------------------------------
>> 44 //
32 #include "G4ParticleChangeForLoss.hh" 45 #include "G4ParticleChangeForLoss.hh"
33 #include "G4SystemOfUnits.hh" << 46 #include "G4Track.hh"
>> 47 #include "G4Step.hh"
>> 48 #include "G4DynamicParticle.hh"
34 #include "G4ExceptionSeverity.hh" 49 #include "G4ExceptionSeverity.hh"
>> 50 #include "G4VelocityTable.hh"
35 51
36 // ------------------------------------------- <<
37 G4ParticleChangeForLoss::G4ParticleChangeForLo 52 G4ParticleChangeForLoss::G4ParticleChangeForLoss()
>> 53 : G4VParticleChange(), currentTrack(0), proposedKinEnergy(0.),
>> 54 lowEnergyLimit(1.0*eV), currentCharge(0.)
38 { 55 {
39 // Disable flag that is enabled in G4VPartic << 56 theSteppingControlFlag = NormalCondition;
40 debugFlag = false; 57 debugFlag = false;
41 SetNumberOfSecondaries(1); << 58 #ifdef G4VERBOSE
>> 59 if (verboseLevel>2) {
>> 60 G4cout << "G4ParticleChangeForLoss::G4ParticleChangeForLoss() " << G4endl;
>> 61 }
>> 62 #endif
>> 63 }
>> 64
>> 65 G4ParticleChangeForLoss::~G4ParticleChangeForLoss()
>> 66 {
>> 67 #ifdef G4VERBOSE
>> 68 if (verboseLevel>2) {
>> 69 G4cout << "G4ParticleChangeForLoss::~G4ParticleChangeForLoss() " << G4endl;
>> 70 }
>> 71 #endif
42 } 72 }
43 73
44 // ------------------------------------------- << 74 G4ParticleChangeForLoss::
>> 75 G4ParticleChangeForLoss(const G4ParticleChangeForLoss &right)
>> 76 : G4VParticleChange(right)
>> 77 {
>> 78 if (verboseLevel>1) {
>> 79 G4cout << "G4ParticleChangeForLoss:: copy constructor is called " << G4endl;
>> 80 }
>> 81 currentTrack = right.currentTrack;
>> 82 proposedKinEnergy = right.proposedKinEnergy;
>> 83 lowEnergyLimit = right.lowEnergyLimit;
>> 84 currentCharge = right.currentCharge;
>> 85 proposedMomentumDirection = right.proposedMomentumDirection;
>> 86 }
>> 87
>> 88 // assignment operator
>> 89 G4ParticleChangeForLoss & G4ParticleChangeForLoss::operator=(
>> 90 const G4ParticleChangeForLoss &right)
>> 91 {
>> 92 #ifdef G4VERBOSE
>> 93 if (verboseLevel>1) {
>> 94 G4cout << "G4ParticleChangeForLoss:: assignment operator is called " << G4endl;
>> 95 }
>> 96 #endif
>> 97
>> 98 if (this != &right) {
>> 99 if (theNumberOfSecondaries>0) {
>> 100 #ifdef G4VERBOSE
>> 101 if (verboseLevel>0) {
>> 102 G4cout << "G4ParticleChangeForLoss: assignment operator Warning ";
>> 103 G4cout << "theListOfSecondaries is not empty ";
>> 104 }
>> 105 #endif
>> 106 for (G4int index= 0; index<theNumberOfSecondaries; index++){
>> 107 if ( (*theListOfSecondaries)[index] ) delete (*theListOfSecondaries)[index] ;
>> 108 }
>> 109 }
>> 110 delete theListOfSecondaries;
>> 111 theListOfSecondaries = new G4TrackFastVector();
>> 112 theNumberOfSecondaries = right.theNumberOfSecondaries;
>> 113 for (G4int index = 0; index<theNumberOfSecondaries; index++){
>> 114 G4Track* newTrack = new G4Track(*((*right.theListOfSecondaries)[index] ));
>> 115 theListOfSecondaries->SetElement(index, newTrack); }
>> 116
>> 117 theStatusChange = right.theStatusChange;
>> 118 theLocalEnergyDeposit = right.theLocalEnergyDeposit;
>> 119 theSteppingControlFlag = right.theSteppingControlFlag;
>> 120 theParentWeight = right.theParentWeight;
>> 121 isParentWeightProposed = right.isParentWeightProposed;
>> 122 isParentWeightSetByProcess = right.isParentWeightSetByProcess;
>> 123 fSetSecondaryWeightByProcess = right.fSetSecondaryWeightByProcess;
>> 124
>> 125 currentTrack = right.currentTrack;
>> 126 proposedKinEnergy = right.proposedKinEnergy;
>> 127 currentCharge = right.currentCharge;
>> 128 proposedMomentumDirection = right.proposedMomentumDirection;
>> 129 }
>> 130 return *this;
>> 131 }
>> 132
>> 133 //----------------------------------------------------------------
>> 134 // methods for printing messages
>> 135 //
>> 136
45 void G4ParticleChangeForLoss::DumpInfo() const 137 void G4ParticleChangeForLoss::DumpInfo() const
46 { 138 {
47 // use base-class DumpInfo << 139 // use base-class DumpInfo
48 G4VParticleChange::DumpInfo(); 140 G4VParticleChange::DumpInfo();
49 141
50 G4long oldprc = G4cout.precision(8); << 142 G4int oldprc = G4cout.precision(3);
51 G4cout << " --------------------------- << 143 G4cout << " Charge (eplus) : "
52 G4cout << " G4ParticleChangeForLoss p << 144 << std::setw(20) << currentCharge/eplus
53 G4cout << " Charge (eplus) : " << s << 145 << G4endl;
54 << currentCharge / eplus << G4endl; << 146 G4cout << " Kinetic Energy (MeV): "
55 G4cout << " Kinetic Energy (MeV): " < << 147 << std::setw(20) << proposedKinEnergy/MeV
56 << proposedKinEnergy / MeV << G4endl; << 148 << G4endl;
57 G4cout << " Momentum Direct - x : " < << 149 G4cout << " Momentum Direct - x : "
58 << proposedMomentumDirection.x() << G << 150 << std::setw(20) << proposedMomentumDirection.x()
59 G4cout << " Momentum Direct - y : " < << 151 << G4endl;
60 << proposedMomentumDirection.y() << G << 152 G4cout << " Momentum Direct - y : "
61 G4cout << " Momentum Direct - z : " < << 153 << std::setw(20) << proposedMomentumDirection.y()
62 << proposedMomentumDirection.z() << G << 154 << G4endl;
>> 155 G4cout << " Momentum Direct - z : "
>> 156 << std::setw(20) << proposedMomentumDirection.z()
>> 157 << G4endl;
63 G4cout.precision(oldprc); 158 G4cout.precision(oldprc);
64 } 159 }
65 160
66 // ------------------------------------------- << 161 G4bool G4ParticleChangeForLoss::CheckIt(const G4Track& aTrack)
67 G4Step* G4ParticleChangeForLoss::UpdateStepFor <<
68 { 162 {
69 const G4StepPoint* pPreStepPoint = pStep->Ge << 163 G4bool itsOK = true;
70 G4StepPoint* pPostStepPoint = pStep->GetPost << 164 G4bool exitWithError = false;
71 165
72 // accumulate change of the kinetic energy << 166 G4double accuracy;
73 G4double preKinEnergy = pPreStepPoint->GetKi <<
74 G4double kinEnergy = <<
75 pPostStepPoint->GetKineticEnergy() + (prop <<
76 167
77 pPostStepPoint->SetCharge(currentCharge); << 168 // Energy should not be lager than initial value
>> 169 accuracy = ( proposedKinEnergy - aTrack.GetKineticEnergy())/MeV;
>> 170 if (accuracy > accuracyForWarning) {
>> 171 #ifdef G4VERBOSE
>> 172 G4cout << "G4ParticleChangeForLoss::CheckIt: ";
>> 173 G4cout << "KinEnergy become larger than the initial value!" << G4endl;
>> 174 G4cout << " Difference: " << accuracy << "[MeV] " <<G4endl;
>> 175 #endif
>> 176 itsOK = false;
>> 177 if (accuracy > accuracyForException) exitWithError = true;
>> 178 }
78 179
79 // calculate velocity << 180 // dump out information of this particle change
80 if(kinEnergy > 0.0) << 181 #ifdef G4VERBOSE
81 { << 182 if (!itsOK) {
82 pPostStepPoint->SetKineticEnergy(kinEnergy << 183 G4cout << "G4ParticleChangeForLoss::CheckIt " << G4endl;
83 << 184 DumpInfo();
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 } 185 }
>> 186 #endif
97 187
98 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 188 // Exit with error
99 pStep->AddNonIonizingEnergyDeposit(theNonIon << 189 if (exitWithError) {
100 return pStep; << 190 G4Exception("G4ParticleChangeForLoss::CheckIt",
>> 191 "TRACK004", EventMustBeAborted,
>> 192 "energy was illegal");
>> 193 }
>> 194
>> 195 //correction
>> 196 if (!itsOK) {
>> 197 proposedKinEnergy = aTrack.GetKineticEnergy();
>> 198 }
>> 199
>> 200 itsOK = (itsOK) && G4VParticleChange::CheckIt(aTrack);
>> 201 return itsOK;
101 } 202 }
102 203
103 // ------------------------------------------- << 204 //----------------------------------------------------------------
104 G4Step* G4ParticleChangeForLoss::UpdateStepFor << 205 // methods for updating G4Step
>> 206 //
>> 207
>> 208 G4Step* G4ParticleChangeForLoss::UpdateStepForAlongStep(G4Step* pStep)
105 { 209 {
106 G4StepPoint* pPostStepPoint = pStep->GetPost 210 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
107 211
108 pPostStepPoint->SetCharge(currentCharge); << 212 // accumulate change of the kinetic energy
109 pPostStepPoint->SetMomentumDirection(propose << 213 G4double kinEnergy = pPostStepPoint->GetKineticEnergy() +
110 if(proposedKinEnergy > 0.0) << 214 (proposedKinEnergy - pStep->GetPreStepPoint()->GetKineticEnergy());
111 { <<
112 pPostStepPoint->SetKineticEnergy(proposedK <<
113 215
114 // assuming that mass>0, zero mass particl << 216 // update kinetic energy and charge
115 pPostStepPoint->SetVelocity(CLHEP::c_light << 217 if (kinEnergy < lowEnergyLimit) {
>> 218 theLocalEnergyDeposit += kinEnergy;
>> 219 kinEnergy = 0.0;
>> 220 } else {
>> 221 pPostStepPoint->SetCharge( currentCharge );
116 } 222 }
117 else << 223 pPostStepPoint->SetKineticEnergy( kinEnergy );
118 { << 224 // calculate velocity
119 pPostStepPoint->SetKineticEnergy(0.0); << 225 pStep->GetTrack()->SetKineticEnergy(kinEnergy);
120 pPostStepPoint->SetVelocity(0.0); << 226 pPostStepPoint->SetVelocity(pStep->GetTrack()->CalculateVelocity());
>> 227 pStep->GetTrack()->SetKineticEnergy(pStep->GetPreStepPoint()->GetKineticEnergy());
>> 228
>> 229 if (isParentWeightProposed) {
>> 230 // update weight
>> 231 G4StepPoint* pPreStepPoint = pStep->GetPreStepPoint();
>> 232 G4double newWeight= theParentWeight/(pPreStepPoint->GetWeight())
>> 233 * (pPostStepPoint->GetWeight());
>> 234 if (isParentWeightSetByProcess) pPostStepPoint->SetWeight( newWeight );
>> 235 if (!fSetSecondaryWeightByProcess) {
>> 236 //Set weight of secondary tracks
>> 237 for (G4int index= 0; index<theNumberOfSecondaries; index++){
>> 238 if ( (*theListOfSecondaries)[index] ) {
>> 239 ((*theListOfSecondaries)[index])->SetWeight(newWeight); ;
>> 240 }
>> 241 }
>> 242 }
121 } 243 }
122 pPostStepPoint->SetPolarization(proposedPola <<
123 244
124 if(isParentWeightProposed) << 245 pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
125 { << 246 pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit );
126 pPostStepPoint->SetWeight(theParentWeight) << 247 return pStep;
>> 248 }
>> 249
>> 250 G4Step* G4ParticleChangeForLoss::UpdateStepForPostStep(G4Step* pStep)
>> 251 {
>> 252 G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint();
>> 253 pPostStepPoint->SetCharge( currentCharge );
>> 254 pPostStepPoint->SetMomentumDirection( proposedMomentumDirection );
>> 255 pPostStepPoint->SetKineticEnergy( proposedKinEnergy );
>> 256 pStep->GetTrack()->SetKineticEnergy( proposedKinEnergy );
>> 257 pPostStepPoint->SetVelocity(pStep->GetTrack()->CalculateVelocity());
>> 258 pPostStepPoint->SetPolarization( proposedPolarization );
>> 259
>> 260 if (isParentWeightProposed) {
>> 261 if (isParentWeightSetByProcess) pPostStepPoint->SetWeight( theParentWeight );
>> 262 if (!fSetSecondaryWeightByProcess) {
>> 263 // Set weight of secondary tracks
>> 264 for (G4int index= 0; index<theNumberOfSecondaries; index++){
>> 265 if ( (*theListOfSecondaries)[index] ) {
>> 266 ((*theListOfSecondaries)[index])->SetWeight( theParentWeight );
>> 267 }
>> 268 }
>> 269 }
127 } 270 }
128 271
129 pStep->AddTotalEnergyDeposit(theLocalEnergyD << 272 pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit );
130 pStep->AddNonIonizingEnergyDeposit(theNonIon << 273 pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit );
131 return pStep; 274 return pStep;
132 } 275 }
>> 276
133 277