Gabriele Cosmo
144 lines
3.1 KiB
C++
144 lines
3.1 KiB
C++
|
|
#include "globals.hh"
|
|
|
|
|
|
#ifndef G4NucleiPropertiesTheoreticalTable_h
|
|
#define G4NucleiPropertiesTheoreticalTable_h 1
|
|
|
|
// Class Description
|
|
// Encapsulates Data from W.D. Myers, W.J. Swiatecki, P. Moller and J.R. Nix,
|
|
// 1. Jan. 1995.
|
|
// Atomic Mass Excess
|
|
//
|
|
|
|
|
|
class G4NucleiPropertiesTheoreticalTable
|
|
{
|
|
private:
|
|
|
|
// Default constructor
|
|
G4NucleiPropertiesTheoreticalTable(G4double dummy);
|
|
|
|
static G4NucleiPropertiesTheoreticalTable theInstance;
|
|
|
|
public:
|
|
|
|
// Destructor
|
|
~G4NucleiPropertiesTheoreticalTable() { };
|
|
|
|
enum {nEntries = 8979, shortTableSize = 137};
|
|
|
|
// Other Operations
|
|
|
|
public: // With Description
|
|
// Operation: GetMassExcess
|
|
static G4double GetMassExcess(G4int Z, G4int A);
|
|
|
|
// Operation: GetNuclearMass
|
|
static G4double GetNuclearMass(G4int Z, G4int A);
|
|
|
|
// Operation: GetAtomicMass
|
|
static G4double GetAtomicMass(G4int Z, G4int A);
|
|
|
|
// Operation: GetBindingEnergy
|
|
static G4double GetBindingEnergy(G4int Z, G4int A);
|
|
|
|
// Is the nucleus (Z,A) in table?
|
|
static G4bool IsInTable(G4int Z, G4int A);
|
|
|
|
|
|
private:
|
|
|
|
// Operation: GetIndex
|
|
static G4int GetIndex(G4int Z, G4int A);
|
|
|
|
static G4double ElectronicBindingEnergy(G4int Z);
|
|
|
|
|
|
|
|
|
|
// Mass Excess
|
|
static G4double AtomicMassExcess[nEntries];
|
|
|
|
|
|
|
|
|
|
// Table of Z (number of protons) and A (number of nucleons)
|
|
// indexArray[0][ ] --> Z
|
|
// indexArray[1][ ] --> A
|
|
static G4int indexArray[2][nEntries];
|
|
|
|
// Reduced Table of Z for shorter index search.
|
|
// The index in this table coincide with Z-1
|
|
// For each Z value shortTable[Z-1] has the index of the 1st occurrence in
|
|
// the indexArray[][]
|
|
static G4int shortTable[shortTableSize];
|
|
|
|
|
|
};
|
|
|
|
inline G4double G4NucleiPropertiesTheoreticalTable::GetMassExcess(G4int Z, G4int A)
|
|
{
|
|
G4int i=GetIndex(Z, A);
|
|
if (i >= 0) {
|
|
return AtomicMassExcess[i]*MeV;
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
inline G4double G4NucleiPropertiesTheoreticalTable::GetBindingEnergy(G4int Z, G4int A)
|
|
{
|
|
G4int i=GetIndex(Z, A);
|
|
if (i >= 0){
|
|
const G4double Mh = 7.289034*MeV; // hydrogen atom mass excess
|
|
const G4double Mn = 8.071431*MeV; // neutron mass excess
|
|
return G4double(Z)*Mh + G4double(A-Z)*Mn - AtomicMassExcess[i]*MeV;
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
inline G4double G4NucleiPropertiesTheoreticalTable::GetAtomicMass(G4int Z, G4int A)
|
|
{
|
|
G4int i=GetIndex(Z, A);
|
|
if (i >= 0) {
|
|
return AtomicMassExcess[i]*MeV + A*amu_c2;
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
inline G4double G4NucleiPropertiesTheoreticalTable::GetNuclearMass(G4int Z, G4int A)
|
|
{
|
|
G4int i=GetIndex(Z, A);
|
|
if (i >= 0) {
|
|
return GetAtomicMass(Z,A) - G4double(Z)*electron_mass_c2 + ElectronicBindingEnergy(Z);
|
|
} else {
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
inline G4double G4NucleiPropertiesTheoreticalTable::ElectronicBindingEnergy(G4int Z) {
|
|
const G4double ael = 1.433e-5*MeV; // electronic-binding constant
|
|
return ael*pow(G4double(Z),2.39);
|
|
}
|
|
|
|
inline G4bool G4NucleiPropertiesTheoreticalTable::IsInTable(G4int Z, G4int A)
|
|
{
|
|
return (Z <= A && A >= 16 && A <= 339 && Z <= 136 && Z >= 8 && GetIndex(Z, A) >= 0);
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
|