00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // $Id$ 00027 // 00028 // ------------------------------------------------------------------- 00029 // 00030 // GEANT4 Class file 00031 // 00032 // 00033 // File name: G4eIonisation 00034 // 00035 // Author: Laszlo Urban 00036 // 00037 // Creation date: 20.03.1997 00038 // 00039 // Modifications: 00040 // 00041 // 07-04-98 remove 'tracking cut' of the ionizing particle, mma 00042 // 04-09-98 new methods SetBining() PrintInfo() 00043 // 07-09-98 Cleanup 00044 // 02-02-99 correction inDoIt , L.Urban 00045 // 10-02-00 modifications , new e.m. structure, L.Urban 00046 // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation 00047 // 09-08-01 new methods Store/Retrieve PhysicsTable (mma) 00048 // 13-08-01 new function ComputeRestrictedMeandEdx() (mma) 00049 // 17-09-01 migration of Materials to pure STL (mma) 00050 // 21-09-01 completion of RetrievePhysicsTable() (mma) 00051 // 29-10-01 all static functions no more inlined (mma) 00052 // 07-11-01 particleMass and Charge become local variables 00053 // 26-03-02 change access to cuts in BuildLossTables (V.Ivanchenko) 00054 // 30-04-02 V.Ivanchenko update to new design 00055 // 23-12-02 Change interface in order to move to cut per region (VI) 00056 // 26-12-02 Secondary production moved to derived classes (VI) 00057 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko) 00058 // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko) 00059 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko) 00060 // 08-08-03 STD substitute standard (V.Ivanchenko) 00061 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko) 00062 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko) 00063 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko) 00064 // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma) 00065 // 02-09-05 Return SetStepLimits(1, 1*mm) (V.Ivantchenko) 00066 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko) 00067 // 14-01-07 use SetEmModel() and SetFluctModel() from G4VEnergyLossProcess (mma) 00068 // 00069 // ------------------------------------------------------------------- 00070 // 00071 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00072 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00073 00074 #include "G4eIonisation.hh" 00075 #include "G4Electron.hh" 00076 #include "G4MollerBhabhaModel.hh" 00077 #include "G4UniversalFluctuation.hh" 00078 #include "G4BohrFluctuations.hh" 00079 #include "G4UnitsTable.hh" 00080 00081 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00082 00083 using namespace std; 00084 00085 G4eIonisation::G4eIonisation(const G4String& name) 00086 : G4VEnergyLossProcess(name), 00087 theElectron(G4Electron::Electron()), 00088 isElectron(true), 00089 isInitialised(false) 00090 { 00091 // SetStepFunction(0.2, 1*mm); 00092 SetProcessSubType(fIonisation); 00093 SetSecondaryParticle(theElectron); 00094 } 00095 00096 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00097 00098 G4eIonisation::~G4eIonisation() 00099 {} 00100 00101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00102 00103 G4double G4eIonisation::MinPrimaryEnergy(const G4ParticleDefinition*, 00104 const G4Material*, 00105 G4double cut) 00106 { 00107 G4double x = cut; 00108 if(isElectron) x += cut; 00109 return x; 00110 } 00111 00112 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00113 00114 G4bool G4eIonisation::IsApplicable(const G4ParticleDefinition& p) 00115 { 00116 return (&p == theElectron || &p == G4Positron::Positron()); 00117 } 00118 00119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00120 00121 void G4eIonisation::InitialiseEnergyLossProcess( 00122 const G4ParticleDefinition* part, 00123 const G4ParticleDefinition*) 00124 { 00125 if(!isInitialised) { 00126 if(part != theElectron) { isElectron = false; } 00127 if (!EmModel()) { SetEmModel(new G4MollerBhabhaModel()); } 00128 EmModel()->SetLowEnergyLimit (MinKinEnergy()); 00129 EmModel()->SetHighEnergyLimit(MaxKinEnergy()); 00130 if (!FluctModel()) { SetFluctModel(new G4UniversalFluctuation()); } 00131 00132 AddEmModel(1, EmModel(), FluctModel()); 00133 isInitialised = true; 00134 } 00135 } 00136 00137 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.... 00138 00139 void G4eIonisation::PrintInfo() 00140 {} 00141 00142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....