[826] | 1 | // |
---|
| 2 | // ******************************************************************** |
---|
| 3 | // * License and Disclaimer * |
---|
| 4 | // * * |
---|
| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
| 7 | // * conditions of the Geant4 Software License, included in the file * |
---|
| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
| 9 | // * include a list of copyright holders. * |
---|
| 10 | // * * |
---|
| 11 | // * Neither the authors of this software system, nor their employing * |
---|
| 12 | // * institutes,nor the agencies providing financial support for this * |
---|
| 13 | // * work make any representation or warranty, express or implied, * |
---|
| 14 | // * regarding this software system or assume any liability for its * |
---|
| 15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
| 16 | // * for the full disclaimer and the limitation of liability. * |
---|
| 17 | // * * |
---|
| 18 | // * This code implementation is the result of the scientific and * |
---|
| 19 | // * technical work of the GEANT4 collaboration. * |
---|
| 20 | // * By using, copying, modifying or distributing the software (or * |
---|
| 21 | // * any work based on the software) you agree to acknowledge its * |
---|
| 22 | // * use in resulting scientific publications, and indicate your * |
---|
| 23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
| 24 | // ******************************************************************** |
---|
| 25 | // |
---|
| 26 | // |
---|
| 27 | // $Id: G4ParticleChangeForLoss.hh,v 1.20 2008/01/11 19:57:12 vnivanch Exp $ |
---|
[1058] | 28 | // GEANT4 tag $Name: geant4-09-02-ref-02 $ |
---|
[826] | 29 | // |
---|
| 30 | // |
---|
| 31 | // ------------------------------------------------------------ |
---|
| 32 | // GEANT 4 class header file |
---|
| 33 | // |
---|
| 34 | // |
---|
| 35 | // ------------------------------------------------------------ |
---|
| 36 | // Implemented for the new scheme 23 Mar. 1998 H.Kurahige |
---|
| 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 | // 30.01.06 V.Ivanchenko add ProposedMomentumDirection for AlongStep |
---|
| 42 | // and ProposeWeight for PostStep |
---|
| 43 | // 07.06.06 V.Ivanchenko RemoveProposedMomentumDirection from AlongStep |
---|
| 44 | // 28.08.06 V.Ivanchenko Add access to current track and polarizaion |
---|
| 45 | // |
---|
| 46 | // ------------------------------------------------------------ |
---|
| 47 | // |
---|
| 48 | // Class Description |
---|
| 49 | // This class is a concrete class for ParticleChange for EnergyLoss |
---|
| 50 | // |
---|
| 51 | #ifndef G4ParticleChangeForLoss_h |
---|
| 52 | #define G4ParticleChangeForLoss_h 1 |
---|
| 53 | |
---|
| 54 | #include "globals.hh" |
---|
| 55 | #include "G4ios.hh" |
---|
| 56 | #include "G4VParticleChange.hh" |
---|
| 57 | |
---|
| 58 | class G4DynamicParticle; |
---|
| 59 | |
---|
| 60 | class G4ParticleChangeForLoss: public G4VParticleChange |
---|
| 61 | { |
---|
| 62 | public: |
---|
| 63 | // default constructor |
---|
| 64 | G4ParticleChangeForLoss(); |
---|
| 65 | |
---|
| 66 | // destructor |
---|
| 67 | virtual ~G4ParticleChangeForLoss(); |
---|
| 68 | |
---|
| 69 | // with description |
---|
| 70 | // ---------------------------------------------------- |
---|
| 71 | // --- the following methods are for updating G4Step ----- |
---|
| 72 | |
---|
| 73 | G4Step* UpdateStepForAlongStep(G4Step* Step); |
---|
| 74 | G4Step* UpdateStepForPostStep(G4Step* Step); |
---|
| 75 | // A physics process gives the final state of the particle |
---|
| 76 | // based on information of G4Track |
---|
| 77 | |
---|
| 78 | void InitializeForAlongStep(const G4Track&); |
---|
| 79 | void InitializeForPostStep(const G4Track&); |
---|
| 80 | //Initialize all propoerties by using G4Track information |
---|
| 81 | |
---|
| 82 | void AddSecondary(G4DynamicParticle* aParticle); |
---|
| 83 | // Add next secondary |
---|
| 84 | |
---|
| 85 | G4double GetProposedCharge() const; |
---|
| 86 | void SetProposedCharge(G4double theCharge); |
---|
| 87 | // Get/Set theCharge |
---|
| 88 | |
---|
| 89 | G4double GetCharge() const; |
---|
| 90 | void ProposeCharge(G4double finalCharge); |
---|
| 91 | // Get/Propose the final dynamical Charge in G4DynamicParticle |
---|
| 92 | |
---|
| 93 | G4double GetProposedKineticEnergy() const; |
---|
| 94 | void SetProposedKineticEnergy(G4double proposedKinEnergy); |
---|
| 95 | // Get/Set the final kinetic energy of the current particle. |
---|
| 96 | |
---|
| 97 | const G4ThreeVector& GetProposedMomentumDirection() const; |
---|
| 98 | void SetProposedMomentumDirection(const G4ThreeVector& dir); |
---|
| 99 | const G4ThreeVector& GetMomentumDirection() const; |
---|
| 100 | void ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz); |
---|
| 101 | void ProposeMomentumDirection(const G4ThreeVector& Pfinal); |
---|
| 102 | // Get/Propose the MomentumDirection vector: it is the final momentum direction. |
---|
| 103 | |
---|
| 104 | const G4ThreeVector& GetProposedPolarization() const; |
---|
| 105 | void ProposePolarization(const G4ThreeVector& dir); |
---|
| 106 | void ProposePolarization(G4double Px, G4double Py, G4double Pz); |
---|
| 107 | |
---|
| 108 | const G4Track* GetCurrentTrack() const; |
---|
| 109 | |
---|
| 110 | virtual void DumpInfo() const; |
---|
| 111 | |
---|
| 112 | // for Debug |
---|
| 113 | virtual G4bool CheckIt(const G4Track&); |
---|
| 114 | |
---|
| 115 | protected: |
---|
| 116 | // hide copy constructor and assignment operaor as protected |
---|
| 117 | G4ParticleChangeForLoss(const G4ParticleChangeForLoss &right); |
---|
| 118 | G4ParticleChangeForLoss & operator=(const G4ParticleChangeForLoss &right); |
---|
| 119 | |
---|
| 120 | private: |
---|
| 121 | |
---|
| 122 | const G4Track* currentTrack; |
---|
| 123 | // The pointer to G4Track |
---|
| 124 | |
---|
| 125 | G4double proposedKinEnergy; |
---|
| 126 | // The final kinetic energy of the current particle. |
---|
| 127 | |
---|
| 128 | G4double currentCharge; |
---|
| 129 | // The final charge of the current particle. |
---|
| 130 | |
---|
| 131 | G4ThreeVector proposedMomentumDirection; |
---|
| 132 | // The final momentum direction of the current particle. |
---|
| 133 | |
---|
| 134 | G4ThreeVector proposedPolarization; |
---|
| 135 | // The final polarization of the current particle. |
---|
| 136 | }; |
---|
| 137 | |
---|
| 138 | // ------------------------------------------------------------ |
---|
| 139 | |
---|
| 140 | inline G4double G4ParticleChangeForLoss::GetProposedKineticEnergy() const |
---|
| 141 | { |
---|
| 142 | return proposedKinEnergy; |
---|
| 143 | } |
---|
| 144 | |
---|
| 145 | inline void G4ParticleChangeForLoss::SetProposedKineticEnergy(G4double energy) |
---|
| 146 | { |
---|
| 147 | proposedKinEnergy = energy; |
---|
| 148 | } |
---|
| 149 | |
---|
| 150 | inline G4double G4ParticleChangeForLoss::GetProposedCharge() const |
---|
| 151 | { |
---|
| 152 | return currentCharge; |
---|
| 153 | } |
---|
| 154 | |
---|
| 155 | inline G4double G4ParticleChangeForLoss::GetCharge() const |
---|
| 156 | { |
---|
| 157 | return currentCharge; |
---|
| 158 | } |
---|
| 159 | |
---|
| 160 | inline void G4ParticleChangeForLoss::SetProposedCharge(G4double theCharge) |
---|
| 161 | { |
---|
| 162 | currentCharge = theCharge; |
---|
| 163 | } |
---|
| 164 | |
---|
| 165 | inline void G4ParticleChangeForLoss::ProposeCharge(G4double theCharge) |
---|
| 166 | { |
---|
| 167 | currentCharge = theCharge; |
---|
| 168 | } |
---|
| 169 | |
---|
| 170 | inline |
---|
| 171 | const G4ThreeVector& G4ParticleChangeForLoss::GetProposedMomentumDirection() const |
---|
| 172 | { |
---|
| 173 | return proposedMomentumDirection; |
---|
| 174 | } |
---|
| 175 | |
---|
| 176 | inline |
---|
| 177 | const G4ThreeVector& G4ParticleChangeForLoss::GetMomentumDirection() const |
---|
| 178 | { |
---|
| 179 | return proposedMomentumDirection; |
---|
| 180 | } |
---|
| 181 | |
---|
| 182 | inline |
---|
| 183 | void G4ParticleChangeForLoss::ProposeMomentumDirection(const G4ThreeVector& dir) |
---|
| 184 | { |
---|
| 185 | proposedMomentumDirection = dir; |
---|
| 186 | } |
---|
| 187 | |
---|
| 188 | inline |
---|
| 189 | void G4ParticleChangeForLoss::SetProposedMomentumDirection(const G4ThreeVector& dir) |
---|
| 190 | { |
---|
| 191 | proposedMomentumDirection = dir; |
---|
| 192 | } |
---|
| 193 | |
---|
| 194 | inline |
---|
| 195 | void G4ParticleChangeForLoss::ProposeMomentumDirection(G4double Px, G4double Py, G4double Pz) |
---|
| 196 | { |
---|
| 197 | proposedMomentumDirection.setX(Px); |
---|
| 198 | proposedMomentumDirection.setY(Py); |
---|
| 199 | proposedMomentumDirection.setZ(Pz); |
---|
| 200 | } |
---|
| 201 | |
---|
| 202 | inline const G4Track* G4ParticleChangeForLoss::GetCurrentTrack() const |
---|
| 203 | { |
---|
| 204 | return currentTrack; |
---|
| 205 | } |
---|
| 206 | |
---|
| 207 | inline |
---|
| 208 | const G4ThreeVector& G4ParticleChangeForLoss::GetProposedPolarization() const |
---|
| 209 | { |
---|
| 210 | return proposedPolarization; |
---|
| 211 | } |
---|
| 212 | |
---|
| 213 | inline |
---|
| 214 | void G4ParticleChangeForLoss::ProposePolarization(const G4ThreeVector& dir) |
---|
| 215 | { |
---|
| 216 | proposedPolarization = dir; |
---|
| 217 | } |
---|
| 218 | |
---|
| 219 | inline |
---|
| 220 | void G4ParticleChangeForLoss::ProposePolarization(G4double Px, G4double Py, G4double Pz) |
---|
| 221 | { |
---|
| 222 | proposedPolarization.setX(Px); |
---|
| 223 | proposedPolarization.setY(Py); |
---|
| 224 | proposedPolarization.setZ(Pz); |
---|
| 225 | } |
---|
| 226 | |
---|
| 227 | inline void G4ParticleChangeForLoss::InitializeForAlongStep(const G4Track& track) |
---|
| 228 | { |
---|
| 229 | theStatusChange = track.GetTrackStatus(); |
---|
| 230 | theLocalEnergyDeposit = 0.0; |
---|
| 231 | theNonIonizingEnergyDeposit = 0.0; |
---|
| 232 | InitializeSecondaries(track); |
---|
| 233 | theParentWeight = track.GetWeight(); |
---|
| 234 | proposedKinEnergy = track.GetKineticEnergy(); |
---|
| 235 | currentCharge = track.GetDynamicParticle()->GetCharge(); |
---|
| 236 | } |
---|
| 237 | |
---|
| 238 | inline void G4ParticleChangeForLoss::InitializeForPostStep(const G4Track& track) |
---|
| 239 | { |
---|
| 240 | theStatusChange = track.GetTrackStatus(); |
---|
| 241 | theLocalEnergyDeposit = 0.0; |
---|
| 242 | theNonIonizingEnergyDeposit = 0.0; |
---|
| 243 | InitializeSecondaries(track); |
---|
| 244 | theParentWeight = track.GetWeight(); |
---|
| 245 | proposedKinEnergy = track.GetKineticEnergy(); |
---|
| 246 | currentCharge = track.GetDynamicParticle()->GetCharge(); |
---|
| 247 | proposedMomentumDirection = track.GetMomentumDirection(); |
---|
| 248 | proposedPolarization = track.GetPolarization(); |
---|
| 249 | currentTrack = &track; |
---|
| 250 | } |
---|
| 251 | |
---|
| 252 | //---------------------------------------------------------------- |
---|
| 253 | // methods for updating G4Step |
---|
| 254 | // |
---|
| 255 | |
---|
| 256 | inline G4Step* G4ParticleChangeForLoss::UpdateStepForAlongStep(G4Step* pStep) |
---|
| 257 | { |
---|
| 258 | G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); |
---|
| 259 | |
---|
| 260 | // accumulate change of the kinetic energy |
---|
| 261 | G4double kinEnergy = pPostStepPoint->GetKineticEnergy() + |
---|
| 262 | (proposedKinEnergy - pStep->GetPreStepPoint()->GetKineticEnergy()); |
---|
| 263 | |
---|
| 264 | // update kinetic energy and charge |
---|
| 265 | if (kinEnergy < DBL_MIN) { |
---|
| 266 | theLocalEnergyDeposit += kinEnergy; |
---|
| 267 | kinEnergy = 0.0; |
---|
| 268 | } else { |
---|
| 269 | pPostStepPoint->SetCharge( currentCharge ); |
---|
| 270 | } |
---|
| 271 | pPostStepPoint->SetKineticEnergy( kinEnergy ); |
---|
| 272 | |
---|
| 273 | // update weight |
---|
| 274 | // this feature is commented out, it should be overwritten in case |
---|
| 275 | // if energy loss processes will use biasing |
---|
| 276 | // G4double newWeight = theParentWeight*(pPostStepPoint->GetWeight()) |
---|
| 277 | // /(pPreStepPoint->GetWeight()); |
---|
| 278 | // pPostStepPoint->SetWeight( newWeight ); |
---|
| 279 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
---|
| 280 | pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit ); |
---|
| 281 | return pStep; |
---|
| 282 | } |
---|
| 283 | |
---|
| 284 | inline G4Step* G4ParticleChangeForLoss::UpdateStepForPostStep(G4Step* pStep) |
---|
| 285 | { |
---|
| 286 | G4StepPoint* pPostStepPoint = pStep->GetPostStepPoint(); |
---|
| 287 | pPostStepPoint->SetCharge( currentCharge ); |
---|
| 288 | pPostStepPoint->SetMomentumDirection( proposedMomentumDirection ); |
---|
| 289 | pPostStepPoint->SetKineticEnergy( proposedKinEnergy ); |
---|
| 290 | pPostStepPoint->SetPolarization( proposedPolarization ); |
---|
| 291 | // update weight if process cannot do that |
---|
| 292 | if (!fSetParentWeightByProcess) |
---|
| 293 | pPostStepPoint->SetWeight( theParentWeight ); |
---|
| 294 | |
---|
| 295 | pStep->AddTotalEnergyDeposit( theLocalEnergyDeposit ); |
---|
| 296 | pStep->AddNonIonizingEnergyDeposit( theNonIonizingEnergyDeposit ); |
---|
| 297 | return pStep; |
---|
| 298 | } |
---|
| 299 | |
---|
| 300 | inline void G4ParticleChangeForLoss::AddSecondary(G4DynamicParticle* aParticle) |
---|
| 301 | { |
---|
| 302 | // create track |
---|
| 303 | G4Track* aTrack = new G4Track(aParticle, currentTrack->GetGlobalTime(), |
---|
| 304 | currentTrack->GetPosition()); |
---|
| 305 | |
---|
| 306 | // Touchable handle is copied to keep the pointer |
---|
| 307 | aTrack->SetTouchableHandle(currentTrack->GetTouchableHandle()); |
---|
| 308 | |
---|
| 309 | // add a secondary |
---|
| 310 | G4VParticleChange::AddSecondary(aTrack); |
---|
| 311 | } |
---|
| 312 | |
---|
| 313 | #endif |
---|
| 314 | |
---|