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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35
36 #include "globals.hh"
37
38 /** \file G4INCLNDFModifiedHarmonicOscillator.hh
39 * \brief Class for modified harmonic oscillator density
40 *
41 * \date 16 July 2012
42 * \author Davide Mancusi
43 */
44
45 #ifndef G4INCLNDFMODIFIEDHARMONICOSCILLATOR_HH_
46 #define G4INCLNDFMODIFIEDHARMONICOSCILLATOR_HH_
47
48 #include "G4INCLIFunction1D.hh"
49 #include <cmath>
50 #include <algorithm>
51
52 namespace G4INCL {
53
54 namespace NuclearDensityFunctions {
55
56 class ModifiedHarmonicOscillatorRP : public IFunction1D {
57 public:
58 ModifiedHarmonicOscillatorRP(G4double radiusParameter, G4double maximumRadius, G4double diffusenessParameter) :
59 IFunction1D(0., maximumRadius),
60 theRadiusParameter(radiusParameter),
61 theDiffusenessParameter(diffusenessParameter)
62 {}
63
64 inline G4double operator()(const G4double r) const {
65 const G4double arg = std::pow((r/theDiffusenessParameter),2);
66 return std::max(0., -2.0* r*r *arg * (theRadiusParameter - 1.0 - theRadiusParameter*arg)*std::exp(-arg));
67 }
68
69 inline G4double getRadiusParameter() { return theRadiusParameter; };
70 inline G4double getDiffusenessParameter() { return theDiffusenessParameter; };
71
72 inline void setRadiusParameter(G4double r) { theRadiusParameter = r; };
73 inline void setDiffusenessParameter(G4double a) { theDiffusenessParameter = a; };
74
75 protected:
76 G4double theRadiusParameter, theDiffusenessParameter;
77 };
78
79 class ModifiedHarmonicOscillator : public IFunction1D {
80 public:
81 ModifiedHarmonicOscillator(G4double radiusParameter, G4double maximumRadius, G4double diffusenessParameter) :
82 IFunction1D(0., maximumRadius),
83 theRadiusParameter(radiusParameter),
84 theDiffusenessParameter(diffusenessParameter),
85 normalisation(2./((theDiffusenessParameter+theRadiusParameter)*std::pow(theDiffusenessParameter,2.)))
86 {}
87
88 inline G4double operator()(const G4double r) const {
89 const G4double arg = std::pow((r/theDiffusenessParameter),2);
90 return r*r*( 1. + theRadiusParameter * arg) * std::exp(-arg);
91 }
92
93 inline G4double getRadiusParameter() { return theRadiusParameter; };
94 inline G4double getDiffusenessParameter() { return theDiffusenessParameter; };
95
96 inline void setRadiusParameter(G4double r) { theRadiusParameter = r; };
97 inline void setDiffusenessParameter(G4double a) { theDiffusenessParameter = a; };
98
99 protected:
100 G4double theRadiusParameter, theDiffusenessParameter;
101 const G4double normalisation;
102 };
103
104 }
105
106 }
107
108 #endif // G4INCLNDFMODIFIEDHARMONICOSCILLATOR_HH_
109
110