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Geant4/processes/electromagnetic/standard/include/G4UniversalFluctuation.hh

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Differences between /processes/electromagnetic/standard/include/G4UniversalFluctuation.hh (Version 11.3.0) and /processes/electromagnetic/standard/include/G4UniversalFluctuation.hh (Version 9.4.p4)


  1 //                                                  1 //
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 25 //                                                 25 //
                                                   >>  26 // $Id: G4UniversalFluctuation.hh,v 1.12 2010-08-08 08:19:59 urban Exp $
                                                   >>  27 // GEANT4 tag $Name: not supported by cvs2svn $
                                                   >>  28 //
 26 // -------------------------------------------     29 // -------------------------------------------------------------------
 27 //                                                 30 //
 28 // GEANT4 Class header file                        31 // GEANT4 Class header file
 29 //                                                 32 //
 30 //                                                 33 //
 31 // File name:     G4UniversalFluctuation           34 // File name:     G4UniversalFluctuation
 32 //                                                 35 //
 33 // Author:        V.Ivanchenko make a class wi     36 // Author:        V.Ivanchenko make a class with the Laszlo Urban model
 34 //                                                 37 //
 35 // Creation date: 03.01.2002                       38 // Creation date: 03.01.2002
 36 //                                                 39 //
 37 // Modifications:                                  40 // Modifications:
 38 //                                                 41 //
                                                   >>  42 // 09-12-02 remove warnings (V.Ivanchenko)
                                                   >>  43 // 28-12-02 add method Dispersion (V.Ivanchenko)
                                                   >>  44 // 07-02-03 change signature (V.Ivanchenko)
                                                   >>  45 // 13-02-03 Add name (V.Ivanchenko)
                                                   >>  46 // 16-10-03 Changed interface to Initialisation (V.Ivanchenko)
                                                   >>  47 // 07-02-05 define problim = 5.e-3 (mma)
 39 //                                                 48 //
 40 // Class Description:                              49 // Class Description:
 41 //                                                 50 //
 42 // Implementation of energy loss fluctuations  <<  51 // Implementation of energy loss fluctuations
 43                                                    52 
 44 // -------------------------------------------     53 // -------------------------------------------------------------------
 45 //                                                 54 //
 46                                                    55 
 47 #ifndef G4UniversalFluctuation_h                   56 #ifndef G4UniversalFluctuation_h
 48 #define G4UniversalFluctuation_h 1                 57 #define G4UniversalFluctuation_h 1
 49                                                    58 
                                                   >>  59 
 50 #include "G4VEmFluctuationModel.hh"                60 #include "G4VEmFluctuationModel.hh"
 51 #include "G4ParticleDefinition.hh"                 61 #include "G4ParticleDefinition.hh"
 52 #include "G4Poisson.hh"                        << 
 53 #include <CLHEP/Random/RandomEngine.h>         << 
 54                                                    62 
 55 class G4UniversalFluctuation : public G4VEmFlu     63 class G4UniversalFluctuation : public G4VEmFluctuationModel
 56 {                                                  64 {
 57                                                    65 
 58 public:                                            66 public:
 59                                                    67 
 60   explicit G4UniversalFluctuation(const G4Stri <<  68   G4UniversalFluctuation(const G4String& nam = "UniFluc");
 61                                                    69 
 62   ~G4UniversalFluctuation() override;          <<  70   virtual ~G4UniversalFluctuation();
 63                                                    71 
 64   G4double SampleFluctuations(const G4Material <<  72   virtual G4double SampleFluctuations(const G4Material*,
 65             const G4DynamicParticle*,          <<  73               const G4DynamicParticle*,
 66                               const G4double,  <<  74               G4double&,
 67             const G4double, const G4double) ov <<  75               G4double&,
 68                                                <<  76               G4double&);
 69   G4double Dispersion(const G4Material*,       <<  77 
 70           const G4DynamicParticle*,            <<  78   virtual G4double Dispersion(    const G4Material*,
 71                       const G4double, const G4 <<  79           const G4DynamicParticle*,
 72                       const G4double) override <<  80           G4double&,
                                                   >>  81           G4double&);
 73                                                    82 
 74   // Initialisation for a new particle type    <<  83   virtual void InitialiseMe(const G4ParticleDefinition*);
 75   void InitialiseMe(const G4ParticleDefinition << 
 76                                                    84 
 77   // Initialisation prestep                        85   // Initialisation prestep
 78   void SetParticleAndCharge(const G4ParticleDe <<  86   virtual void SetParticleAndCharge(const G4ParticleDefinition*, G4double q2);
 79           G4double q2) override;               <<  87 
                                                   >>  88 private:
 80                                                    89 
 81   // hide assignment operator                      90   // hide assignment operator
 82   G4UniversalFluctuation & operator=           <<  91   G4UniversalFluctuation & operator=(const  G4UniversalFluctuation &right);
 83   (const G4UniversalFluctuation &right) = dele <<  92   G4UniversalFluctuation(const  G4UniversalFluctuation&);
 84   G4UniversalFluctuation(const G4UniversalFluc <<  93 
 85                                                <<  94   const G4ParticleDefinition* particle;
 86 protected:                                     <<  95   const G4Material* lastMaterial;
 87                                                <<  96 
 88   virtual G4double SampleGlandz(CLHEP::HepRand <<  97   G4double particleMass;
 89                                 const G4Materi <<  98   G4double chargeSquare;
 90                                                <<  99 
 91   inline void AddExcitation(CLHEP::HepRandomEn << 100   // data members to speed up the fluctuation calculation
 92                             const G4double ax, << 101   G4double ipotFluct;
 93                             G4double& eav,     << 102   G4double electronDensity;
 94                             G4double& eloss, G << 103   
 95                                                << 104   G4double f1Fluct;
 96   inline void SampleGauss(CLHEP::HepRandomEngi << 105   G4double f2Fluct;
 97                           const G4double eav,  << 106   G4double e1Fluct;
 98                           G4double& eloss);    << 107   G4double e2Fluct;
 99                                                << 108   G4double e1LogFluct;
100   // particle properties                       << 109   G4double e2LogFluct;
101   G4double particleMass = 0.0;                 << 110   G4double ipotLogFluct;
102   G4double m_Inv_particleMass = DBL_MAX;       << 111   G4double e0;
103   G4double m_massrate = DBL_MAX;               << 112   G4double esmall;
104   G4double chargeSquare = 1.0;                 << 
105                                                << 
106   // material properties                       << 
107   G4double ipotFluct = 0.0;                    << 
108   G4double ipotLogFluct = 0.0;                 << 
109   G4double e0 = 0.0;                           << 
110                                                   113 
111   // model parameters                          << 114   G4double e1,e2;
112   G4double minNumberInteractionsBohr = 10.0;   << 115 
                                                   >> 116   G4double minNumberInteractionsBohr;
                                                   >> 117   G4double theBohrBeta2;
113   G4double minLoss;                               118   G4double minLoss;
114   G4double nmaxCont = 8.0;                     << 119   G4double nmaxCont;
115   G4double rate = 0.56;                        << 120   G4double rate,fw;
116   G4double fw = 4.0;                           << 
117   G4double a0 = 42.0;                          << 
118   G4double w2 = 0.0;                           << 
119   G4double meanLoss = 0.0;                     << 
120                                                << 
121   const G4ParticleDefinition* particle = nullp << 
122   G4double* rndmarray = nullptr;               << 
123   G4int sizearray = 30;                        << 
124 };                                             << 
125                                                   121 
126 //....oooOO0OOooo........oooOO0OOooo........oo << 
127                                                   122 
128 inline void                                    << 123 };
129 G4UniversalFluctuation::AddExcitation(CLHEP::H << 
130                                       const G4 << 
131                                       G4double << 
132                                       G4double << 
133 {                                              << 
134   if(ax > nmaxCont) {                          << 
135     eav  += ax*ex;                             << 
136     esig2 += ax*ex*ex;                         << 
137   } else {                                     << 
138     const G4int p = (G4int)G4Poisson(ax);      << 
139     if(p > 0) { eloss += ((p + 1) - 2.*rndm->f << 
140   }                                            << 
141 }                                              << 
142                                                << 
143 //....oooOO0OOooo........oooOO0OOooo........oo << 
144                                                << 
145 inline void                                    << 
146 G4UniversalFluctuation::SampleGauss(CLHEP::Hep << 
147                                     const G4do << 
148                                     G4double&  << 
149 {                                              << 
150   G4double x = eav;                            << 
151   const G4double sig = std::sqrt(esig2);       << 
152   if(eav < 0.25*sig) {                         << 
153     x += (2.*rndm->flat() - 1.)*eav;           << 
154   } else {                                     << 
155     do {                                       << 
156       x = G4RandGauss::shoot(rndm, eav, sig);  << 
157     } while (x < 0.0 || x > 2*eav);            << 
158     // Loop checking, 23-Feb-2016, Vladimir Iv << 
159   }                                            << 
160   eloss += x;                                  << 
161 }                                              << 
162                                                   124 
163 //....oooOO0OOooo........oooOO0OOooo........oo    125 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
164                                                   126 
165 #endif                                            127 #endif
166                                                   128 
167                                                   129