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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 // GEANT 4 class implementation 30 // 31 // ------- GVFlashShowerParameterisation 32 // 33 // Authors: Joanna Weng - 11.2005 34 // ------------------------------------------- 35 36 #include <cmath> 37 38 #include "GVFlashShowerParameterisation.hh" 39 40 #include "G4PhysicalConstants.hh" 41 #include "G4SystemOfUnits.hh" 42 #include "Randomize.hh" 43 #include "G4ios.hh" 44 #include "G4Material.hh" 45 #include "Gamma.hh" // @@@@ 46 #include "G4MaterialTable.hh" 47 48 GVFlashShowerParameterisation::GVFlashShowerPa 49 : thePar(0), density(0.), A(0.), Z(0.), X0(0 50 { 51 fGamma = new MyGamma; 52 } 53 54 GVFlashShowerParameterisation::~GVFlashShowerP 55 { 56 delete fGamma; 57 } 58 59 G4double GVFlashShowerParameterisation::GetEff 60 { 61 // Returns Z or effective Z=sum(pi*Zi) (if c 62 // of given material 63 // 64 G4double z = 0.; 65 G4int nofElements = (G4int)mat->GetNumberOfE 66 if (nofElements > 1) { 67 for (G4int i = 0; i < nofElements; ++i) { 68 G4double zOfElement = mat->GetElement(i) 69 G4double massFraction = mat->GetFraction 70 // cout << mat->GetElement(i)->GetName() 71 // <<" Z= "<<zOfElement << " , Frac 72 z += zOfElement * massFraction; 73 } 74 } 75 else { 76 z = mat->GetZ(); 77 } 78 return z; 79 } 80 81 G4double GVFlashShowerParameterisation::GetEff 82 { 83 // Returns A or effective A=sum(pi*Ai) (if c 84 // of given material 85 // 86 G4double a = 0.; 87 G4int nofElements = (G4int)mat->GetNumberOfE 88 if (nofElements > 1) { 89 for (G4int i = 0; i < nofElements; ++i) { 90 G4double aOfElement = mat->GetElement(i) 91 G4double massFraction = mat->GetFraction 92 a += aOfElement * massFraction; 93 } 94 } 95 else { 96 a = mat->GetA() / (g / mole); 97 } 98 return a; 99 } 100 101 void GVFlashShowerParameterisation::PrintMater 102 { 103 G4cout << "/******************************** 104 G4cout << " - GVFlashShowerParameterisation 105 G4cout << " Material : " << mat->GetN 106 G4cout << " Z = " << Z << G4endl; 107 G4cout << " A = " << A << G4endl; 108 G4cout << " X0 = " << X0 / cm << " cm" << 109 G4cout << " Rm = " << Rm / cm << " cm" << 110 G4cout << " Ec = " << Ec / MeV << " MeV" < 111 G4cout << "/******************************** 112 } 113 114 G4double GVFlashShowerParameterisation::Genera 115 { 116 G4double Phi = twopi*G4UniformRand() ; 117 return Phi; 118 } 119 120 G4double GVFlashShowerParameterisation::gam(G4 121 { 122 return fGamma->Gamma(a, x); 123 } 124