Geant4 Cross Reference

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Geant4/processes/electromagnetic/highenergy/src/G4hhIonisation.cc

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Diff markup

Differences between /processes/electromagnetic/highenergy/src/G4hhIonisation.cc (Version 11.3.0) and /processes/electromagnetic/highenergy/src/G4hhIonisation.cc (Version 4.0)


  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
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  8 // * LICENSE and available at  http://cern.ch/    
  9 // * include a list of copyright holders.         
 10 // *                                              
 11 // * Neither the authors of this software syst    
 12 // * institutes,nor the agencies providing fin    
 13 // * work  make  any representation or  warran    
 14 // * regarding  this  software system or assum    
 15 // * use.  Please see the license in the file     
 16 // * for the full disclaimer and the limitatio    
 17 // *                                              
 18 // * This  code  implementation is the result     
 19 // * technical work of the GEANT4 collaboratio    
 20 // * By using,  copying,  modifying or  distri    
 21 // * any work based  on the software)  you  ag    
 22 // * use  in  resulting  scientific  publicati    
 23 // * acceptance of all terms of the Geant4 Sof    
 24 // *******************************************    
 25 //                                                
 26 //                                                
 27 // -------------------------------------------    
 28 //                                                
 29 // GEANT4 Class file                              
 30 //                                                
 31 //                                                
 32 // File name:     G4hhIonisation                  
 33 //                                                
 34 // Author:        Vladimir Ivanchenko             
 35 //                                                
 36 // Creation date: 30.09.2005                      
 37 //                                                
 38 // Modifications:                                 
 39 // 10-01-06 SetStepLimits -> SetStepFunction (    
 40 // 27-10-06 Add maxKinEnergy (V.Ivantchenko)      
 41 //                                                
 42 //                                                
 43 // -------------------------------------------    
 44 //                                                
 45 //....oooOO0OOooo........oooOO0OOooo........oo    
 46 //....oooOO0OOooo........oooOO0OOooo........oo    
 47                                                   
 48 #include "G4hhIonisation.hh"                      
 49 #include "G4PhysicalConstants.hh"                 
 50 #include "G4SystemOfUnits.hh"                     
 51 #include "G4BraggNoDeltaModel.hh"                 
 52 #include "G4BetheBlochNoDeltaModel.hh"            
 53 #include "G4ICRU73NoDeltaModel.hh"                
 54 #include "G4UniversalFluctuation.hh"              
 55 #include "G4IonFluctuations.hh"                   
 56 #include "G4UnitsTable.hh"                        
 57 #include "G4Electron.hh"                          
 58 #include "G4EmParameters.hh"                      
 59                                                   
 60 //....oooOO0OOooo........oooOO0OOooo........oo    
 61                                                   
 62 G4hhIonisation::G4hhIonisation(const G4String&    
 63   : G4VEnergyLossProcess(name)                    
 64 {                                                 
 65   SetVerboseLevel(1);                             
 66   SetProcessSubType(fIonisation);                 
 67   SetSecondaryParticle(G4Electron::Electron())    
 68 }                                                 
 69                                                   
 70 //....oooOO0OOooo........oooOO0OOooo........oo    
 71                                                   
 72 G4hhIonisation::~G4hhIonisation()                 
 73 {}                                                
 74                                                   
 75 //....oooOO0OOooo........oooOO0OOooo........oo    
 76                                                   
 77 G4bool G4hhIonisation::IsApplicable(const G4Pa    
 78 {                                                 
 79   return (p.GetPDGCharge() != 0.0);               
 80 }                                                 
 81                                                   
 82 //....oooOO0OOooo........oooOO0OOooo........oo    
 83                                                   
 84 G4double G4hhIonisation::MinPrimaryEnergy(cons    
 85             const G4Material*,                    
 86             G4double cut)                         
 87 {                                                 
 88   G4double x = 0.5*cut/electron_mass_c2;          
 89   G4double y = electron_mass_c2/mass;             
 90   G4double gam = x*y + std::sqrt((1. + x)*(1.     
 91   return mass*(gam - 1.0);                        
 92 }                                                 
 93                                                   
 94 //....oooOO0OOooo........oooOO0OOooo........oo    
 95                                                   
 96 void G4hhIonisation::InitialiseEnergyLossProce    
 97          const G4ParticleDefinition* part,        
 98          const G4ParticleDefinition* bpart)       
 99 {                                                 
100   if(isInitialised) { return; }                   
101                                                   
102   theParticle = part;                             
103   if(nullptr != bpart) {                          
104     G4cout << "G4hhIonisation::InitialiseEnerg    
105      << "base particle should be defined for t    
106      << GetProcessName() << G4endl;               
107   }                                               
108   mass  = theParticle->GetPDGMass();              
109   ratio = electron_mass_c2/mass;                  
110   G4double eth = 2*CLHEP::MeV*mass/proton_mass    
111   flucModel = new G4IonFluctuations();            
112                                                   
113   G4EmParameters* param = G4EmParameters::Inst    
114   G4double emin = std::min(param->MinKinEnergy    
115   G4double emax = std::max(param->MaxKinEnergy    
116                                                   
117   SetMinKinEnergy(emin);                          
118   SetMaxKinEnergy(emax);                          
119   G4int bin = G4lrint(param->NumberOfBinsPerDe    
120   SetDEDXBinning(bin);                            
121                                                   
122   G4VEmModel* em = EmModel(0);                    
123   if (nullptr == em) {                            
124     if(part->GetPDGCharge() > 0.0) { em = new     
125     else { em = new G4ICRU73NoDeltaModel(); }     
126   }                                               
127   em->SetLowEnergyLimit(emin);                    
128   em->SetHighEnergyLimit(eth);                    
129   AddEmModel(1, em, flucModel);                   
130                                                   
131   em = EmModel(1);                                
132   if(nullptr == em) { em = new G4BetheBlochNoD    
133   em->SetLowEnergyLimit(eth);                     
134   em->SetHighEnergyLimit(emax);                   
135   AddEmModel(1, em, flucModel);                   
136                                                   
137   if(verboseLevel>1) {                            
138     G4cout << "G4hhIonisation is initialised"     
139   }                                               
140   isInitialised = true;                           
141 }                                                 
142                                                   
143 //....oooOO0OOooo........oooOO0OOooo........oo    
144                                                   
145 void G4hhIonisation::ProcessDescription(std::o    
146 {                                                 
147   out << "G4hhIonisation: no delta rays" << G4    
148   G4VEnergyLossProcess::ProcessDescription(out    
149 }                                                 
150                                                   
151 //....oooOO0OOooo........oooOO0OOooo........oo    
152