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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,v 1.5 2010-10-25 17:23:01 vnivanch Exp $ >> 27 // GEANT4 tag $Name: not supported by cvs2svn $ >> 28 // >> 29 // 26 #ifndef G4ElectronIonPair_h 30 #ifndef G4ElectronIonPair_h 27 #define G4ElectronIonPair_h 1 31 #define G4ElectronIonPair_h 1 28 32 29 // ------------------------------------------- 33 // ------------------------------------------------------------- 30 // 34 // 31 // GEANT4 Class header file 35 // GEANT4 Class header file 32 // 36 // 33 // 37 // 34 // File name: G4ElectronIonPair 38 // File name: G4ElectronIonPair 35 // 39 // 36 // Author: Vladimir Ivanchenko 40 // Author: Vladimir Ivanchenko 37 // 41 // 38 // Creation date: 08.07.2008 42 // Creation date: 08.07.2008 39 // 43 // 40 // Modifications: 44 // Modifications: 41 // 45 // 42 // 46 // 43 // Class Description: 47 // Class Description: 44 // Compution on number of electon-ion or ele 48 // Compution on number of electon-ion or electorn-hole pairs 45 // at the step of a particle and sampling io 49 // at the step of a particle and sampling ionisation points 46 // in space 50 // in space 47 // 51 // 48 // Based on ICRU Report 31, 1979 52 // Based on ICRU Report 31, 1979 49 // "Average Energy Required to Produce an Ion << 53 // "Average Energy Required to Produce an Ion Pair" 50 // << 51 // 06.04.2010 V. Grichine, substitute Gauss by << 52 // distribution at fix << 53 // 54 // 54 // ------------------------------------------- 55 // ------------------------------------------------------------- 55 56 56 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 57 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 58 59 59 #include "globals.hh" 60 #include "globals.hh" 60 #include "G4Step.hh" 61 #include "G4Step.hh" 61 #include "G4ParticleDefinition.hh" 62 #include "G4ParticleDefinition.hh" 62 #include "G4ThreeVector.hh" 63 #include "G4ThreeVector.hh" 63 #include "G4VProcess.hh" 64 #include "G4VProcess.hh" 64 #include "Randomize.hh" << 65 #include <vector> 65 #include <vector> 66 66 67 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 68 68 69 class G4Material; 69 class G4Material; 70 70 71 class G4ElectronIonPair 71 class G4ElectronIonPair 72 { 72 { 73 public: 73 public: 74 74 75 explicit G4ElectronIonPair(G4int verb); << 75 G4ElectronIonPair(); 76 76 77 virtual ~G4ElectronIonPair(); 77 virtual ~G4ElectronIonPair(); 78 78 79 // compute mean number of ionisation points 79 // compute mean number of ionisation points at a step 80 G4double MeanNumberOfIonsAlongStep(const G4P 80 G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*, 81 const G4Material*, 81 const G4Material*, 82 G4double edepTotal, 82 G4double edepTotal, 83 G4double edepNIEL = 0.0); 83 G4double edepNIEL = 0.0); 84 84 85 inline G4double MeanNumberOfIonsAlongStep(co 85 inline G4double MeanNumberOfIonsAlongStep(const G4Step*); 86 86 87 inline G4int SampleNumberOfIonsAlongStep(con 87 inline G4int SampleNumberOfIonsAlongStep(const G4Step*); 88 88 89 // returns pointer to the new vector of posi 89 // returns pointer to the new vector of positions of 90 // ionisation points in the World coordinate 90 // ionisation points in the World coordinate system 91 std::vector<G4ThreeVector>* SampleIonsAlongS 91 std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*); 92 92 93 // compute number of holes in the atom after 93 // compute number of holes in the atom after PostStep interaction 94 G4int ResidualeChargePostStep(const G4Partic 94 G4int ResidualeChargePostStep(const G4ParticleDefinition*, 95 const G4TrackVector* secondary = nullp << 95 const G4TrackVector* secondary = 0, 96 G4int processSubType = -1) const; << 96 G4int processSubType = -1); 97 97 98 inline G4int ResidualeChargePostStep(const G << 98 inline G4int ResidualeChargePostStep(const G4Step*); 99 99 100 // find mean energies per ionisation 100 // find mean energies per ionisation 101 G4double FindG4MeanEnergyPerIonPair(const G4 << 101 G4double FindG4MeanEnergyPerIonPair(const G4Material*); 102 102 103 // dump mean energies per ionisation used in 103 // dump mean energies per ionisation used in run time 104 void DumpMeanEnergyPerIonPair() const; << 104 void DumpMeanEnergyPerIonPair(); 105 105 106 // dump G4 list 106 // dump G4 list 107 void DumpG4MeanEnergyPerIonPair() const; << 107 void DumpG4MeanEnergyPerIonPair(); 108 108 109 inline void SetVerbose(G4int); 109 inline void SetVerbose(G4int); 110 110 111 // hide assignment operator << 112 G4ElectronIonPair & operator=(const G4Electr << 113 G4ElectronIonPair(const G4ElectronIonPair&) << 114 << 115 private: 111 private: 116 112 117 void Initialise(); 113 void Initialise(); 118 114 119 G4double FindMeanEnergyPerIonPair(const G4Ma << 115 G4double FindMeanEnergyPerIonPair(const G4Material*); >> 116 >> 117 // hide assignment operator >> 118 G4ElectronIonPair & operator=(const G4ElectronIonPair &right); >> 119 G4ElectronIonPair(const G4ElectronIonPair&); 120 120 121 // cache << 121 // cash 122 const G4Material* curMaterial; 122 const G4Material* curMaterial; 123 G4double curMeanEnergy; 123 G4double curMeanEnergy; 124 124 125 G4double invFanoFactor; << 125 G4double FanoFactor; 126 126 127 G4int verbose; 127 G4int verbose; 128 G4int nMaterials; 128 G4int nMaterials; 129 129 130 // list of G4 NIST materials with mean energ 130 // list of G4 NIST materials with mean energy per ion defined 131 std::vector<G4double> g4MatData; 131 std::vector<G4double> g4MatData; 132 std::vector<G4String> g4MatNames; 132 std::vector<G4String> g4MatNames; 133 }; 133 }; 134 134 135 inline G4double 135 inline G4double 136 G4ElectronIonPair::MeanNumberOfIonsAlongStep(c << 136 G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step) 137 { 137 { 138 return MeanNumberOfIonsAlongStep(step->GetTr 138 return MeanNumberOfIonsAlongStep(step->GetTrack()->GetParticleDefinition(), 139 step->GetPreStepPoint()->GetMateria 139 step->GetPreStepPoint()->GetMaterial(), 140 step->GetTotalEnergyDeposit(), 140 step->GetTotalEnergyDeposit(), 141 step->GetNonIonizingEnergyDeposit() 141 step->GetNonIonizingEnergyDeposit()); 142 } 142 } 143 143 144 inline G4int << 144 inline 145 G4ElectronIonPair::SampleNumberOfIonsAlongStep << 145 G4int G4ElectronIonPair::SampleNumberOfIonsAlongStep(const G4Step* step) 146 { 146 { 147 // use gamma distribution with mean value n= << 148 // dispersion D=meanion/invFanoFactor << 149 G4double meanion = MeanNumberOfIonsAlongStep 147 G4double meanion = MeanNumberOfIonsAlongStep(step); 150 return G4lrint(G4RandGamma::shoot(meanion*in << 148 G4double sig = FanoFactor*std::sqrt(meanion); >> 149 G4int nion = G4int(G4RandGauss::shoot(meanion,sig) + 0.5); >> 150 return nion; 151 } 151 } 152 152 153 inline G4int << 153 inline 154 G4ElectronIonPair::ResidualeChargePostStep(con << 154 G4int G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step) 155 { 155 { 156 G4int subtype = -1; 156 G4int subtype = -1; 157 const G4VProcess* proc = step->GetPostStepPo 157 const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep(); 158 if(proc) { subtype = proc->GetProcessSubType 158 if(proc) { subtype = proc->GetProcessSubType(); } 159 return ResidualeChargePostStep(step->GetTrac 159 return ResidualeChargePostStep(step->GetTrack()->GetParticleDefinition(), 160 step->GetSecondary(), 160 step->GetSecondary(), 161 subtype); 161 subtype); 162 } 162 } 163 163 164 inline void G4ElectronIonPair::SetVerbose(G4in 164 inline void G4ElectronIonPair::SetVerbose(G4int val) 165 { 165 { 166 verbose = val; 166 verbose = val; 167 } 167 } 168 168 169 #endif 169 #endif 170 170 171 171