Geant4 Cross Reference |
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 // Hadronic Process: Nuclear De-excitations 29 // by V. Lara 30 31 32 #include "G4StatMFParameters.hh" 33 #include "G4SystemOfUnits.hh" 34 #include "G4PhysicalConstants.hh" 35 36 const G4double G4StatMFParameters::fKappa = 1. 37 38 const G4double G4StatMFParameters::fKappaCoulo 39 40 const G4double G4StatMFParameters::fEpsilon0 = 41 42 // Bethe-Weizsacker coefficients 43 const G4double G4StatMFParameters::fE0 = 16.0* 44 45 const G4double G4StatMFParameters::fBeta0 = 18 46 47 const G4double G4StatMFParameters::fGamma0 = 2 48 49 // Critical temperature (for liquid-gas phase 50 const G4double G4StatMFParameters::fCriticalTe 51 52 // Nuclear radius 53 const G4double G4StatMFParameters::fr0 = 1.17* 54 55 const G4double G4StatMFParameters::fCoulomb = 56 (1.0 - 1.0/std::pow(1.0+fKappaCoulomb,1./3.) 57 58 G4StatMFParameters::G4StatMFParameters() 59 {} 60 61 G4StatMFParameters::~G4StatMFParameters() 62 {} 63 64 G4double G4StatMFParameters::GetKappa() 65 { 66 return fKappa; 67 } 68 69 G4double G4StatMFParameters::GetKappaCoulomb() 70 { 71 return fKappaCoulomb; 72 } 73 74 G4double G4StatMFParameters::GetEpsilon0() 75 { 76 return fEpsilon0; 77 } 78 79 G4double G4StatMFParameters::GetE0() 80 { 81 return fE0; 82 } 83 84 G4double G4StatMFParameters::GetBeta0() 85 { 86 return fBeta0; 87 } 88 89 G4double G4StatMFParameters::GetGamma0() 90 { 91 return fGamma0; 92 } 93 94 G4double G4StatMFParameters::GetCriticalTemp() 95 { 96 return fCriticalTemp; 97 } 98 99 G4double G4StatMFParameters::Getr0() 100 { 101 return fr0; 102 } 103 104 G4double G4StatMFParameters::GetCoulomb() 105 { 106 return fCoulomb; 107 } 108 109 G4double G4StatMFParameters::Beta(G4double T) 110 { 111 G4double res = 0.0; 112 if (T < fCriticalTemp) { 113 G4double CriticalTempSqr = fCriticalTemp*f 114 G4double TempSqr = T*T; 115 G4double tmp = (CriticalTempSqr-TempSqr)/( 116 117 res = fBeta0*tmp*std::pow(tmp,0.25); 118 } 119 return res; 120 } 121 122 G4double G4StatMFParameters::DBetaDT(G4double 123 { 124 G4double res = 0.0; 125 if (T < fCriticalTemp) { 126 G4double CriticalTempSqr = fCriticalTemp*f 127 G4double TempSqr = T*T; 128 G4double tmp = (CriticalTempSqr-TempSqr)/( 129 130 res = -5.0*fBeta0*std::pow(tmp,0.25)*(Crit 131 ((CriticalTempSqr+TempSqr)*(CriticalTemp 132 } 133 return res; 134 } 135 136 G4double 137 G4StatMFParameters::GetMaxAverageMultiplicity( 138 { 139 // Maximun average multiplicity: M_0 = 2.6 f 140 // and M_0 = 3.3 for A <= 110 141 G4double MaxAverageMultiplicity = 2.6; 142 if (A <= 110) { MaxAverageMultiplicity = 3.3 143 return MaxAverageMultiplicity; 144 } 145 146