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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // 26 // 27 // ------------------------------------------- 27 // ------------------------------------------------------------------- 28 // GEANT 4 class implementation file 28 // GEANT 4 class implementation file 29 // 29 // 30 // CERN, Geneva, Switzerland 30 // CERN, Geneva, Switzerland 31 // 31 // 32 // File name: G4NeutronField.cc 32 // File name: G4NeutronField.cc 33 // 33 // 34 // Author: Alessandro Brunengo (Al 34 // Author: Alessandro Brunengo (Alessandro.Brunengo@ge.infn.it) 35 // 35 // 36 // Creation date: 5 June 2000 36 // Creation date: 5 June 2000 37 // ------------------------------------------- 37 // ------------------------------------------------------------------- 38 << 39 #include "G4NeutronField.hh" 38 #include "G4NeutronField.hh" 40 #include "G4PhysicalConstants.hh" << 39 #include "G4NucleiPropertiesTable.hh" 41 #include "G4SystemOfUnits.hh" << 42 #include "G4VNuclearDensity.hh" 40 #include "G4VNuclearDensity.hh" 43 #include "G4FermiMomentum.hh" 41 #include "G4FermiMomentum.hh" 44 42 >> 43 45 G4NeutronField::G4NeutronField(G4V3DNucleus * 44 G4NeutronField::G4NeutronField(G4V3DNucleus * aNucleus) : 46 G4VNuclearField(aNucleus), theDensity(theN 45 G4VNuclearField(aNucleus), theDensity(theNucleus->GetNuclearDensity()) 47 { 46 { 48 theA = theNucleus->GetMassNumber(); 47 theA = theNucleus->GetMassNumber(); 49 theZ = theNucleus->GetCharge(); 48 theZ = theNucleus->GetCharge(); 50 theFermi.Init(theA, theZ); 49 theFermi.Init(theA, theZ); 51 theR = 2.*theNucleus->GetOuterRadius(); 50 theR = 2.*theNucleus->GetOuterRadius(); 52 for (G4double aR=0.;aR<theR; aR+=0.3*fermi) << 51 G4double aR=0; >> 52 while(aR<theR) 53 { 53 { 54 G4ThreeVector aPosition(0,0,aR); 54 G4ThreeVector aPosition(0,0,aR); 55 G4double density = GetDensity(aPosition); 55 G4double density = GetDensity(aPosition); 56 G4double fermiMom = GetFermiMomentum(densi 56 G4double fermiMom = GetFermiMomentum(density); 57 theFermiMomBuffer.push_back(fermiMom); 57 theFermiMomBuffer.push_back(fermiMom); >> 58 aR+=0.3*fermi; 58 } 59 } 59 { 60 { 60 G4ThreeVector aPosition(0,0,theR); 61 G4ThreeVector aPosition(0,0,theR); 61 G4double density = GetDensity(aPosition); 62 G4double density = GetDensity(aPosition); 62 G4double fermiMom = GetFermiMomentum(density 63 G4double fermiMom = GetFermiMomentum(density); 63 theFermiMomBuffer.push_back(fermiMom); 64 theFermiMomBuffer.push_back(fermiMom); 64 } 65 } 65 { 66 { 66 G4ThreeVector aPosition(0,0,theR+0.001*fermi 67 G4ThreeVector aPosition(0,0,theR+0.001*fermi); 67 theFermiMomBuffer.push_back(0); 68 theFermiMomBuffer.push_back(0); 68 } 69 } 69 { 70 { 70 G4ThreeVector aPosition(0,0,1.*m); 71 G4ThreeVector aPosition(0,0,1.*m); 71 theFermiMomBuffer.push_back(0); 72 theFermiMomBuffer.push_back(0); 72 } 73 } 73 } 74 } 74 75 75 G4NeutronField::~G4NeutronField() 76 G4NeutronField::~G4NeutronField() 76 { } 77 { } 77 78 >> 79 >> 80 const G4NeutronField & G4NeutronField::operator=(const G4NeutronField &) >> 81 { >> 82 throw G4HadronicException(__FILE__, __LINE__, "G4NeutronField::operator= meant not to be accessible"); >> 83 return *this; >> 84 } >> 85 >> 86 >> 87 G4int G4NeutronField::operator==(const G4NeutronField &) const >> 88 { >> 89 throw G4HadronicException(__FILE__, __LINE__, "G4NeutronField::operator== meant not to be accessible"); >> 90 return 0; >> 91 } >> 92 >> 93 >> 94 G4int G4NeutronField::operator!=(const G4NeutronField &) const >> 95 { >> 96 throw G4HadronicException(__FILE__, __LINE__, "G4NeutronField::operator!= meant not to be accessible"); >> 97 return 1; >> 98 } >> 99 >> 100 78 G4double G4NeutronField::GetField(const G4Thre 101 G4double G4NeutronField::GetField(const G4ThreeVector & aPosition) 79 { 102 { 80 G4double x = aPosition.mag(); 103 G4double x = aPosition.mag(); 81 unsigned int index = static_cast<unsigned in << 104 G4int index = static_cast<G4int>(x/(0.3*fermi) ); 82 if( (index+2) > theFermiMomBuffer.size()) re << 105 if(index+2> static_cast<G4int>(theFermiMomBuffer.size())) return theFermiMomBuffer.back(); 83 G4double y1 = theFermiMomBuffer[index]; 106 G4double y1 = theFermiMomBuffer[index]; 84 G4double y2 = theFermiMomBuffer[index+1]; 107 G4double y2 = theFermiMomBuffer[index+1]; 85 G4double x1 = (0.3*fermi)*index; 108 G4double x1 = (0.3*fermi)*index; 86 G4double x2 = (0.3*fermi)*(index+1); 109 G4double x2 = (0.3*fermi)*(index+1); 87 G4double fermiMom = y1 + (x-x1)*(y2-y1)/(x2- 110 G4double fermiMom = y1 + (x-x1)*(y2-y1)/(x2-x1); 88 return -1*(fermiMom*fermiMom)/(2*neutron_mas 111 return -1*(fermiMom*fermiMom)/(2*neutron_mass_c2); 89 } 112 } >> 113 >> 114 90 115 91 G4double G4NeutronField::GetBarrier() 116 G4double G4NeutronField::GetBarrier() 92 { 117 { 93 /* 118 /* 94 * G4double A = theNucleus->GetMassNumber(); 119 * G4double A = theNucleus->GetMassNumber(); 95 * G4double Z = theNucleus->GetCharge(); 120 * G4double Z = theNucleus->GetCharge(); 96 * 121 * 97 * return G4NucleiPropertiesTable::GetBindin 122 * return G4NucleiPropertiesTable::GetBindingEnergy(Z, A)/A; 98 */ 123 */ 99 return 0.; 124 return 0.; 100 } 125 } 101 126 102 127 103 128 104 129 105 130 106 131 107 132