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Geant4/particles/management/src/G4NucleiPropertiesTheoreticalTableA.cc

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 25 //
 26 // G4NucleiPropertiesTheoreticalTable
 27 //
 28 // Author: Tatsumi Koi, SLAC
 29 // --------------------------------------------------------------------
 30 
 31 #include "G4NucleiPropertiesTheoreticalTable.hh"
 32 #include "G4PhysicalConstants.hh"
 33 #include "G4SystemOfUnits.hh"
 34 
 35 // Determine the table index for a Nuclide with Z protons and A nucleons
 36 //
 37 G4int G4NucleiPropertiesTheoreticalTable::GetIndex(G4int Z, G4int A)
 38 {
 39   if (A > 339) {
 40     G4Exception("G4NucleiPropertiesTheoreticalTable::GetIndex", "PART202", EventMustBeAborted,
 41                 "Nucleon number larger than 339");
 42   }
 43   else if (A < 16) {
 44     G4Exception("G4NucleiPropertiesTheoreticalTable::GetIndex", "PART202", EventMustBeAborted,
 45                 " Nucleon number smaller than 16");
 46   }
 47   else if (Z > 136) {
 48     G4Exception("G4NucleiPropertiesTheoreticalTable::GetIndex", "PART202", EventMustBeAborted,
 49                 "Proton number larger than 136");
 50   }
 51   else if (Z < 8) {
 52     G4Exception("G4NucleiPropertiesTheoreticalTable::GetIndex", "PART202", EventMustBeAborted,
 53                 "Proton number smaller than 8");
 54   }
 55   else if (Z > A) {
 56     G4Exception("G4NucleiPropertiesTheoreticalTable::GetIndex", "PART202", EventMustBeAborted,
 57                 "Nucleon number smaller than Z");
 58   }
 59 
 60   for (G4int i = shortTable[Z - 8]; i < shortTable[Z - 8 + 1]; ++i) {
 61     if (indexArray[1][i] == A) return i;
 62   }
 63 
 64   return -1;
 65 }
 66 
 67 G4double G4NucleiPropertiesTheoreticalTable::GetMassExcess(G4int Z, G4int A)
 68 {
 69   G4int i = GetIndex(Z, A);
 70   if (i >= 0) {
 71     return AtomicMassExcess[i] * MeV;
 72   }
 73 
 74   return 0.0;
 75 }
 76 
 77 G4double G4NucleiPropertiesTheoreticalTable::GetBindingEnergy(G4int Z, G4int A)
 78 {
 79   G4int i = GetIndex(Z, A);
 80   if (i >= 0) {
 81     const G4double Mh = 7.289034 * MeV;  // hydrogen atom mass excess
 82     const G4double Mn = 8.071431 * MeV;  // neutron mass excess
 83     return G4double(Z) * Mh + G4double(A - Z) * Mn - AtomicMassExcess[i] * MeV;
 84   }
 85 
 86   return 0.0;
 87 }
 88 
 89 G4double G4NucleiPropertiesTheoreticalTable::GetAtomicMass(G4int Z, G4int A)
 90 {
 91   G4int i = GetIndex(Z, A);
 92   if (i >= 0) {
 93     return AtomicMassExcess[i] * MeV + A * amu_c2;
 94   }
 95 
 96   return 0.0;
 97 }
 98 
 99 G4double G4NucleiPropertiesTheoreticalTable::GetNuclearMass(G4int Z, G4int A)
100 {
101   G4int i = GetIndex(Z, A);
102   if (i >= 0) {
103     return GetAtomicMass(Z, A) - G4double(Z) * electron_mass_c2 + ElectronicBindingEnergy(Z);
104   }
105 
106   return 0.0;
107 }
108 
109 G4double G4NucleiPropertiesTheoreticalTable::ElectronicBindingEnergy(G4int Z)
110 {
111   const G4double ael = 1.433e-5 * MeV;  // electronic-binding constant
112   return ael * std::pow(G4double(Z), 2.39);
113 }
114 
115 G4bool G4NucleiPropertiesTheoreticalTable::IsInTable(G4int Z, G4int A)
116 {
117   return (Z <= A && A >= 16 && A <= 339 && Z <= 136 && Z >= 8 && GetIndex(Z, A) >= 0);
118 }
119