Geant4  10.03.p03
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G4NuclearShellModelDensity.cc
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26 
28 #include "G4PhysicalConstants.hh"
29 #include "G4SystemOfUnits.hh"
30 #include "G4Exp.hh"
31 #include "G4Log.hh"
32 #include "G4Pow.hh"
33 
35 : theA(anA)//, theZ(aZ)
36 {
37  const G4double r0sq=0.8133*fermi*fermi;
38  theRsquare= r0sq * G4Pow::GetInstance()->Z23(theA);
39  G4double x = 1./(pi*theRsquare);
40  Setrho0(x*std::sqrt(x));
41 }
42 
44 
46 {
47  return G4Exp(-1*aPosition.mag2()/theRsquare);
48 }
49 
51 {
52 
53  return (maxRelativeDensity>0 && maxRelativeDensity <= 1 ) ?
54  std::sqrt(theRsquare * G4Log(1/maxRelativeDensity) ) : DBL_MAX;
55 }
56 
58 {
59  return -2* aPosition.mag() / theRsquare * GetDensity(aPosition);
60 }
static G4Pow * GetInstance()
Definition: G4Pow.cc:55
G4double GetDeriv(const G4ThreeVector &aPosition) const
G4double GetRelativeDensity(const G4ThreeVector &aPosition) const
tuple x
Definition: test.py:50
void Setrho0(G4double arho0)
int G4int
Definition: G4Types.hh:78
G4double G4Log(G4double x)
Definition: G4Log.hh:230
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition: G4Exp.hh:183
G4NuclearShellModelDensity(G4int anA, G4int aZ)
G4double GetDensity(const G4ThreeVector &aPosition) const
G4double GetRadius(const G4double maxRelativeDenisty) const
double mag2() const
G4double Z23(G4int Z) const
Definition: G4Pow.hh:154
static constexpr double pi
Definition: G4SIunits.hh:75
double G4double
Definition: G4Types.hh:76
static constexpr double fermi
Definition: G4SIunits.hh:103
double mag() const
#define DBL_MAX
Definition: templates.hh:83