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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // >> 26 // $Id: G4ElectronIonPair.hh 81058 2014-05-20 09:04:28Z gcosmo $ >> 27 // >> 28 // 26 #ifndef G4ElectronIonPair_h 29 #ifndef G4ElectronIonPair_h 27 #define G4ElectronIonPair_h 1 30 #define G4ElectronIonPair_h 1 28 31 29 // ------------------------------------------- 32 // ------------------------------------------------------------- 30 // 33 // 31 // GEANT4 Class header file 34 // GEANT4 Class header file 32 // 35 // 33 // 36 // 34 // File name: G4ElectronIonPair 37 // File name: G4ElectronIonPair 35 // 38 // 36 // Author: Vladimir Ivanchenko 39 // Author: Vladimir Ivanchenko 37 // 40 // 38 // Creation date: 08.07.2008 41 // Creation date: 08.07.2008 39 // 42 // 40 // Modifications: 43 // Modifications: 41 // 44 // 42 // 45 // 43 // Class Description: 46 // Class Description: 44 // Compution on number of electon-ion or ele 47 // Compution on number of electon-ion or electorn-hole pairs 45 // at the step of a particle and sampling io 48 // at the step of a particle and sampling ionisation points 46 // in space 49 // in space 47 // 50 // 48 // Based on ICRU Report 31, 1979 51 // Based on ICRU Report 31, 1979 49 // "Average Energy Required to Produce an Ion 52 // "Average Energy Required to Produce an Ion Pair" 50 // 53 // 51 // 06.04.2010 V. Grichine, substitute Gauss by 54 // 06.04.2010 V. Grichine, substitute Gauss by Gamma for ionisation 52 // distribution at fix 55 // distribution at fixed energy deposition 53 // 56 // 54 // ------------------------------------------- 57 // ------------------------------------------------------------- 55 58 56 //....oooOO0OOooo........oooOO0OOooo........oo 59 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 57 //....oooOO0OOooo........oooOO0OOooo........oo 60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 58 61 59 #include "globals.hh" 62 #include "globals.hh" 60 #include "G4Step.hh" 63 #include "G4Step.hh" 61 #include "G4ParticleDefinition.hh" 64 #include "G4ParticleDefinition.hh" 62 #include "G4ThreeVector.hh" 65 #include "G4ThreeVector.hh" 63 #include "G4VProcess.hh" 66 #include "G4VProcess.hh" 64 #include "Randomize.hh" 67 #include "Randomize.hh" 65 #include <vector> 68 #include <vector> 66 69 67 //....oooOO0OOooo........oooOO0OOooo........oo 70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 68 71 69 class G4Material; 72 class G4Material; 70 73 71 class G4ElectronIonPair 74 class G4ElectronIonPair 72 { 75 { 73 public: 76 public: 74 77 75 explicit G4ElectronIonPair(G4int verb); << 78 G4ElectronIonPair(G4int verb); 76 79 77 virtual ~G4ElectronIonPair(); 80 virtual ~G4ElectronIonPair(); 78 81 79 // compute mean number of ionisation points 82 // compute mean number of ionisation points at a step 80 G4double MeanNumberOfIonsAlongStep(const G4P 83 G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*, 81 const G4Material*, 84 const G4Material*, 82 G4double edepTotal, 85 G4double edepTotal, 83 G4double edepNIEL = 0.0); 86 G4double edepNIEL = 0.0); 84 87 85 inline G4double MeanNumberOfIonsAlongStep(co 88 inline G4double MeanNumberOfIonsAlongStep(const G4Step*); 86 89 87 inline G4int SampleNumberOfIonsAlongStep(con 90 inline G4int SampleNumberOfIonsAlongStep(const G4Step*); 88 91 89 // returns pointer to the new vector of posi 92 // returns pointer to the new vector of positions of 90 // ionisation points in the World coordinate 93 // ionisation points in the World coordinate system 91 std::vector<G4ThreeVector>* SampleIonsAlongS 94 std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*); 92 95 93 // compute number of holes in the atom after 96 // compute number of holes in the atom after PostStep interaction 94 G4int ResidualeChargePostStep(const G4Partic 97 G4int ResidualeChargePostStep(const G4ParticleDefinition*, 95 const G4TrackVector* secondary = nullp << 98 const G4TrackVector* secondary = 0, 96 G4int processSubType = -1) const; 99 G4int processSubType = -1) const; 97 100 98 inline G4int ResidualeChargePostStep(const G 101 inline G4int ResidualeChargePostStep(const G4Step*) const; 99 102 100 // find mean energies per ionisation 103 // find mean energies per ionisation 101 G4double FindG4MeanEnergyPerIonPair(const G4 104 G4double FindG4MeanEnergyPerIonPair(const G4Material*) const; 102 105 103 // dump mean energies per ionisation used in 106 // dump mean energies per ionisation used in run time 104 void DumpMeanEnergyPerIonPair() const; 107 void DumpMeanEnergyPerIonPair() const; 105 108 106 // dump G4 list 109 // dump G4 list 107 void DumpG4MeanEnergyPerIonPair() const; 110 void DumpG4MeanEnergyPerIonPair() const; 108 111 109 inline void SetVerbose(G4int); 112 inline void SetVerbose(G4int); 110 113 111 // hide assignment operator << 112 G4ElectronIonPair & operator=(const G4Electr << 113 G4ElectronIonPair(const G4ElectronIonPair&) << 114 << 115 private: 114 private: 116 115 117 void Initialise(); 116 void Initialise(); 118 117 119 G4double FindMeanEnergyPerIonPair(const G4Ma 118 G4double FindMeanEnergyPerIonPair(const G4Material*) const; 120 119 121 // cache << 120 // hide assignment operator >> 121 G4ElectronIonPair & operator=(const G4ElectronIonPair &right); >> 122 G4ElectronIonPair(const G4ElectronIonPair&); >> 123 >> 124 // cash 122 const G4Material* curMaterial; 125 const G4Material* curMaterial; 123 G4double curMeanEnergy; 126 G4double curMeanEnergy; 124 127 125 G4double invFanoFactor; 128 G4double invFanoFactor; 126 129 127 G4int verbose; 130 G4int verbose; 128 G4int nMaterials; 131 G4int nMaterials; 129 132 130 // list of G4 NIST materials with mean energ 133 // list of G4 NIST materials with mean energy per ion defined 131 std::vector<G4double> g4MatData; 134 std::vector<G4double> g4MatData; 132 std::vector<G4String> g4MatNames; 135 std::vector<G4String> g4MatNames; 133 }; 136 }; 134 137 135 inline G4double 138 inline G4double 136 G4ElectronIonPair::MeanNumberOfIonsAlongStep(c 139 G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step) 137 { 140 { 138 return MeanNumberOfIonsAlongStep(step->GetTr 141 return MeanNumberOfIonsAlongStep(step->GetTrack()->GetParticleDefinition(), 139 step->GetPreStepPoint()->GetMateria 142 step->GetPreStepPoint()->GetMaterial(), 140 step->GetTotalEnergyDeposit(), 143 step->GetTotalEnergyDeposit(), 141 step->GetNonIonizingEnergyDeposit() 144 step->GetNonIonizingEnergyDeposit()); 142 } 145 } 143 146 144 inline G4int 147 inline G4int 145 G4ElectronIonPair::SampleNumberOfIonsAlongStep 148 G4ElectronIonPair::SampleNumberOfIonsAlongStep(const G4Step* step) 146 { 149 { 147 // use gamma distribution with mean value n= 150 // use gamma distribution with mean value n=meanion and 148 // dispersion D=meanion/invFanoFactor 151 // dispersion D=meanion/invFanoFactor 149 G4double meanion = MeanNumberOfIonsAlongStep 152 G4double meanion = MeanNumberOfIonsAlongStep(step); 150 return G4lrint(G4RandGamma::shoot(meanion*in 153 return G4lrint(G4RandGamma::shoot(meanion*invFanoFactor,invFanoFactor)); 151 } 154 } 152 155 153 inline G4int 156 inline G4int 154 G4ElectronIonPair::ResidualeChargePostStep(con 157 G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step) const 155 { 158 { 156 G4int subtype = -1; 159 G4int subtype = -1; 157 const G4VProcess* proc = step->GetPostStepPo 160 const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep(); 158 if(proc) { subtype = proc->GetProcessSubType 161 if(proc) { subtype = proc->GetProcessSubType(); } 159 return ResidualeChargePostStep(step->GetTrac 162 return ResidualeChargePostStep(step->GetTrack()->GetParticleDefinition(), 160 step->GetSecondary(), 163 step->GetSecondary(), 161 subtype); 164 subtype); 162 } 165 } 163 166 164 inline void G4ElectronIonPair::SetVerbose(G4in 167 inline void G4ElectronIonPair::SetVerbose(G4int val) 165 { 168 { 166 verbose = val; 169 verbose = val; 167 } 170 } 168 171 169 #endif 172 #endif 170 173 171 174