| [823] | 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | // $Id: GVFlashShowerParameterisation.cc,v 1.2 2006/06/29 19:14:26 gunter Exp $
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| [1228] | 27 | // GEANT4 tag $Name: geant4-09-03 $
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| [823] | 28 | //
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| 29 | //
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| 30 | // ------------------------------------------------------------
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| 31 | // GEANT 4 class implementation
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| 32 | //
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| 33 | // ------- GVFlashShowerParameterisation -------
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| 34 | //
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| 35 | // Authors: Joanna Weng - 11.2005
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| 36 | // ------------------------------------------------------------
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| 37 |
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| 38 | #include "GVFlashShowerParameterisation.hh"
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| 39 | #include <cmath>
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| 40 | #include "Randomize.hh"
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| 41 | #include "G4ios.hh"
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| 42 | #include "G4Material.hh"
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| 43 | #include "Gamma.hh" // @@@@
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| 44 | #include "G4MaterialTable.hh"
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| 45 |
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| 46 | GVFlashShowerParameterisation::GVFlashShowerParameterisation()
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| 47 | : thePar(0)
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| 48 | {
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| 49 | }
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| 50 |
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| 51 | GVFlashShowerParameterisation::~GVFlashShowerParameterisation()
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| 52 | {
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| 53 | }
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| 54 |
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| 55 | G4double GVFlashShowerParameterisation::GetEffZ(const G4Material * mat )
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| 56 | {
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| 57 | // Returns Z or effective Z=sum(pi*Zi) (if compound/mixture)
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| 58 | // of given material
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| 59 | //
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| 60 | G4double z = 0.;
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| 61 | G4int nofElements = mat->GetNumberOfElements();
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| 62 | if (nofElements > 1)
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| 63 | {
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| 64 | for (G4int i=0; i<nofElements; i++) {
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| 65 | G4double zOfElement = mat->GetElement(i)->GetZ();
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| 66 | G4double massFraction = mat->GetFractionVector()[i];
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| 67 | // cout << mat->GetElement(i)->GetName()
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| 68 | // <<" Z= "<<zOfElement << " , Fraction= "<<massFraction <<endl;
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| 69 | z += zOfElement*massFraction;
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| 70 | }
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| 71 | }
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| 72 | else {
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| 73 | z = mat->GetZ();
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| 74 | }
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| 75 | return z;
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| 76 | }
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| 77 |
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| 78 | G4double GVFlashShowerParameterisation::GetEffA (const G4Material * mat )
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| 79 | {
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| 80 | // Returns A or effective A=sum(pi*Ai) (if compound/mixture)
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| 81 | // of given material
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| 82 | //
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| 83 | G4double a = 0.;
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| 84 | G4int nofElements = mat->GetNumberOfElements();
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| 85 | if (nofElements > 1) {
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| 86 | for (G4int i=0; i<nofElements; i++) {
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| 87 | G4double aOfElement = mat->GetElement(i)->GetA()/(g/mole);
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| 88 | G4double massFraction = mat->GetFractionVector()[i];
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| 89 | a += aOfElement*massFraction;
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| 90 | }
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| 91 | }
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| 92 | else {
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| 93 | a = mat->GetA()/(g/mole);
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| 94 | }
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| 95 | return a;
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| 96 | }
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| 97 |
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| 98 | void GVFlashShowerParameterisation::PrintMaterial(const G4Material * mat)
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| 99 | {
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| 100 | G4cout<<"/********************************************/ " << G4endl;
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| 101 | G4cout<<" - GVFlashShowerParameterisation::Material - " << G4endl;
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| 102 | G4cout<<" Material : " << mat->GetName() << G4endl;
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| 103 | G4cout<<" Z = "<< Z << G4endl;
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| 104 | G4cout<<" A = "<< A << G4endl;
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| 105 | G4cout<<" X0 = "<<X0/cm <<" cm" << G4endl;
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| 106 | G4cout<<" Rm= "<<Rm/cm <<" cm" << G4endl;
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| 107 | G4cout<<" Ec = "<<Ec/MeV << " MeV"<< G4endl;
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| 108 | G4cout<<"/********************************************/ " << G4endl;
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| 109 | }
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| 110 |
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| 111 | G4double GVFlashShowerParameterisation::GeneratePhi()
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| 112 | {
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| 113 | G4double Phi = twopi*G4UniformRand() ;
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| 114 | return Phi;
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| 115 | }
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| 116 |
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| 117 | G4double GVFlashShowerParameterisation::gam(G4double x, G4double a) const
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| 118 | {
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| 119 | static MyGamma theG;
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| 120 | return theG.Gamma(a, x);
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| 121 | }
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