[966] | 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // $Id: G4ElectronIonPair.hh,v 1.2 2008/10/17 14:46:16 vnivanch Exp $ |
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[1007] | 27 | // GEANT4 tag $Name: geant4-09-02 $ |
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[966] | 28 | // |
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| 29 | // |
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| 30 | #ifndef G4ElectronIonPair_h |
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| 31 | #define G4ElectronIonPair_h 1 |
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| 32 | |
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| 33 | // ------------------------------------------------------------- |
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| 34 | // |
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| 35 | // GEANT4 Class header file |
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| 36 | // |
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| 37 | // |
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| 38 | // File name: G4ElectronIonPair |
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| 39 | // |
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| 40 | // Author: Vladimir Ivanchenko |
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| 41 | // |
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| 42 | // Creation date: 08.07.2008 |
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| 43 | // |
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| 44 | // Modifications: |
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| 45 | // |
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| 46 | // |
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| 47 | // Class Description: |
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| 48 | // Compution on number of electon-ion or electorn-hole pairs |
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| 49 | // at the step of a particle and sampling ionisation points |
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| 50 | // in space |
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| 51 | // |
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| 52 | // Based on ICRU Report 31, 1979 |
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| 53 | // "Average Energy Required to Produce an Ion Pair" |
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| 54 | // |
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| 55 | // ------------------------------------------------------------- |
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| 56 | |
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| 57 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 58 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 59 | |
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| 60 | #include "globals.hh" |
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| 61 | #include "G4Step.hh" |
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| 62 | #include "G4ParticleDefinition.hh" |
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| 63 | #include "G4ThreeVector.hh" |
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| 64 | #include "G4TrackVector.hh" |
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| 65 | #include "G4VProcess.hh" |
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| 66 | #include <vector> |
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| 67 | |
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| 68 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... |
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| 69 | |
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| 70 | class G4Material; |
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| 71 | |
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| 72 | class G4ElectronIonPair |
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| 73 | { |
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| 74 | public: |
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| 75 | |
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| 76 | G4ElectronIonPair(); |
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| 77 | |
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| 78 | virtual ~G4ElectronIonPair(); |
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| 79 | |
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| 80 | // compute mean number of ionisation points at a step |
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| 81 | G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*, |
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| 82 | const G4Material*, |
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| 83 | G4double edepTotal, |
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| 84 | G4double edepNIEL = 0.0); |
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| 85 | |
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| 86 | inline G4double MeanNumberOfIonsAlongStep(const G4Step*); |
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| 87 | |
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| 88 | // returns pointer to the new vector of positions of |
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| 89 | // ionisation points in the World coordinate system |
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| 90 | std::vector<G4ThreeVector>* |
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| 91 | SampleIonsAlongStep(const G4ThreeVector& prePosition, |
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| 92 | const G4ThreeVector& postPosition, |
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| 93 | G4double numberOfIonisations); |
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| 94 | |
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| 95 | std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*); |
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| 96 | |
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| 97 | // compute number of holes in the atom after PostStep interaction |
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| 98 | G4int ResidualeChargePostStep(const G4ParticleDefinition*, |
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| 99 | const G4TrackVector* secondary = 0, |
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| 100 | G4int processSubType = -1); |
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| 101 | |
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| 102 | inline G4int ResidualeChargePostStep(const G4Step*); |
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| 103 | |
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| 104 | // find mean energies per ionisation |
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| 105 | G4double FindG4MeanEnergyPerIonPair(const G4Material*); |
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| 106 | |
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| 107 | // dump mean energies per ionisation used in run time |
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| 108 | void DumpMeanEnergyPerIonPair(); |
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| 109 | |
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| 110 | // dump G4 list |
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| 111 | void DumpG4MeanEnergyPerIonPair(); |
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| 112 | |
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| 113 | inline void SetVerbose(G4int); |
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| 114 | |
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| 115 | private: |
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| 116 | |
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| 117 | // hide assignment operator |
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| 118 | G4ElectronIonPair & operator=(const G4ElectronIonPair &right); |
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| 119 | G4ElectronIonPair(const G4ElectronIonPair&); |
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| 120 | |
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| 121 | G4double FindMeanEnergyPerIonPair(const G4Material*); |
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| 122 | |
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| 123 | void Initialise(); |
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| 124 | |
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| 125 | const G4ParticleDefinition* gamma; |
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| 126 | |
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| 127 | // cash |
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| 128 | const G4Material* curMaterial; |
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| 129 | G4double curMeanEnergy; |
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| 130 | |
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| 131 | G4int verbose; |
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| 132 | G4int nMaterials; |
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| 133 | |
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| 134 | // list of G4 NIST materials with mean energy per ion defined |
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| 135 | std::vector<G4double> g4MatData; |
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| 136 | std::vector<G4String> g4MatNames; |
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| 137 | |
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| 138 | }; |
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| 139 | |
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| 140 | inline G4double |
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| 141 | G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step) |
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| 142 | { |
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| 143 | return MeanNumberOfIonsAlongStep(step->GetTrack()->GetDefinition(), |
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| 144 | step->GetPreStepPoint()->GetMaterial(), |
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| 145 | step->GetTotalEnergyDeposit(), |
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| 146 | step->GetNonIonizingEnergyDeposit()); |
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| 147 | } |
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| 148 | |
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| 149 | inline std::vector<G4ThreeVector>* |
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| 150 | G4ElectronIonPair::SampleIonsAlongStep(const G4Step* step) |
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| 151 | { |
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| 152 | return SampleIonsAlongStep(step->GetPreStepPoint()->GetPosition(), |
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| 153 | step->GetPostStepPoint()->GetPosition(), |
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| 154 | MeanNumberOfIonsAlongStep(step)); |
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| 155 | } |
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| 156 | |
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| 157 | inline |
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| 158 | G4int G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step) |
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| 159 | { |
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| 160 | G4int subtype = -1; |
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| 161 | const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep(); |
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| 162 | if(proc) subtype = proc->GetProcessSubType(); |
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| 163 | return ResidualeChargePostStep(step->GetTrack()->GetDefinition(), |
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| 164 | step->GetSecondary(), |
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| 165 | subtype); |
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| 166 | } |
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| 167 | |
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| 168 | inline void G4ElectronIonPair::SetVerbose(G4int val) |
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| 169 | { |
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| 170 | verbose = val; |
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| 171 | } |
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| 172 | |
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| 173 | #endif |
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| 174 | |
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