Geant4 Cross Reference

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Geant4/processes/electromagnetic/dna/models/src/G4DNARuddAngle.cc

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Diff markup

Differences between /processes/electromagnetic/dna/models/src/G4DNARuddAngle.cc (Version 11.3.0) and /processes/electromagnetic/dna/models/src/G4DNARuddAngle.cc (Version 10.0)


  1 //                                                  1 
  2 // *******************************************    
  3 // * License and Disclaimer                       
  4 // *                                              
  5 // * The  Geant4 software  is  copyright of th    
  6 // * the Geant4 Collaboration.  It is provided    
  7 // * conditions of the Geant4 Software License    
  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:     G4DNARuddAngle                  
 33 //                                                
 34 // Author:        Vladimir Ivantcheko             
 35 //                                                
 36 // Creation date: 23 August 2013                  
 37 //                                                
 38 // Modifications:                                 
 39 //                                                
 40 // Class Description:                             
 41 //                                                
 42 // Delta-electron Angular Distribution Generat    
 43 //                                                
 44 // Class Description: End                         
 45 //                                                
 46 // -------------------------------------------    
 47 //                                                
 48                                                   
 49 #include "G4DNARuddAngle.hh"                      
 50 #include "G4PhysicalConstants.hh"                 
 51 #include "Randomize.hh"                           
 52 #include "G4ParticleDefinition.hh"                
 53 #include "G4Electron.hh"                          
 54 #include "G4SystemOfUnits.hh"                     
 55                                                   
 56 using namespace std;                              
 57                                                   
 58 G4DNARuddAngle::G4DNARuddAngle(const G4String&    
 59   : G4VEmAngularDistribution("deltaRudd")         
 60 {                                                 
 61   fElectron = G4Electron::Electron();             
 62 }                                                 
 63                                                   
 64 G4DNARuddAngle::~G4DNARuddAngle()                 
 65 = default;                                        
 66                                                   
 67 G4ThreeVector&                                    
 68 G4DNARuddAngle::SampleDirectionForShell(const     
 69           G4double secKinetic, G4int,             
 70           G4int,                                  
 71           const G4Material*)                      
 72 {                                                 
 73   G4double k = dp->GetKineticEnergy();            
 74   G4double cosTheta = 1.0;                        
 75                                                   
 76   const G4ParticleDefinition* particle = dp->G    
 77   G4double mass = particle->GetPDGMass();         
 78                                                   
 79   G4double maximumEnergyTransfer = k;             
 80   if(particle == fElectron) { maximumEnergyTra    
 81   else if(mass > MeV) {                           
 82     G4double ratio = electron_mass_c2/mass;       
 83     G4double tau  = k/mass;                       
 84     maximumEnergyTransfer = 2.0*electron_mass_    
 85       (1. + 2.0*(tau + 1.)*ratio + ratio*ratio    
 86                                                   
 87   }                                               
 88                                                   
 89   if (secKinetic>100*eV && secKinetic <= maxim    
 90     cosTheta = std::sqrt(secKinetic / maximumE    
 91   } else {                                        
 92     cosTheta = (2.*G4UniformRand())-1.;           
 93   }                                               
 94                                                   
 95   G4double sint = sqrt((1.0 - cosTheta)*(1.0 +    
 96   G4double phi  = twopi*G4UniformRand();          
 97                                                   
 98   fLocalDirection.set(sint*cos(phi), sint*sin(    
 99   fLocalDirection.rotateUz(dp->GetMomentumDire    
100                                                   
101   return fLocalDirection;                         
102 }                                                 
103                                                   
104 G4ThreeVector&                                    
105 G4DNARuddAngle::SampleDirection(const G4Dynami    
106         G4double secEkin, G4int Z,                
107         const G4Material* mat)                    
108 {                                                 
109   return SampleDirectionForShell(dp, secEkin,     
110 }                                                 
111                                                   
112 void G4DNARuddAngle::PrintGeneratorInformation    
113 {}                                                
114