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27 // P. Arce, June-2014 Conversion neutron_hp to 27 // P. Arce, June-2014 Conversion neutron_hp to particle_hp
28 // 28 //
29 #ifndef G4ParticleHPSimpleEvapSpectrum_h 29 #ifndef G4ParticleHPSimpleEvapSpectrum_h
30 #define G4ParticleHPSimpleEvapSpectrum_h 1 30 #define G4ParticleHPSimpleEvapSpectrum_h 1
31 31
32 #include "G4Exp.hh" 32 #include "G4Exp.hh"
33 #include "G4Log.hh" 33 #include "G4Log.hh"
34 #include "G4ParticleHPVector.hh" 34 #include "G4ParticleHPVector.hh"
35 #include "G4VParticleHPEDis.hh" 35 #include "G4VParticleHPEDis.hh"
36 #include "G4ios.hh" 36 #include "G4ios.hh"
37 #include "Randomize.hh" 37 #include "Randomize.hh"
38 #include "globals.hh" 38 #include "globals.hh"
39 39
40 #include <CLHEP/Units/SystemOfUnits.h> 40 #include <CLHEP/Units/SystemOfUnits.h>
41 41
42 #include <fstream> 42 #include <fstream>
43 43
44 // we will need a List of these .... one per t 44 // we will need a List of these .... one per term.
45 45
46 class G4ParticleHPSimpleEvapSpectrum : public 46 class G4ParticleHPSimpleEvapSpectrum : public G4VParticleHPEDis
47 { 47 {
48 public: 48 public:
49 G4ParticleHPSimpleEvapSpectrum() { expm1 = 49 G4ParticleHPSimpleEvapSpectrum() { expm1 = G4Exp(-1.); }
50 ~G4ParticleHPSimpleEvapSpectrum() override 50 ~G4ParticleHPSimpleEvapSpectrum() override = default;
51 51
52 inline void Init(std::istream& aDataFile) 52 inline void Init(std::istream& aDataFile) override
53 { 53 {
54 theFractionalProb.Init(aDataFile, CLHEP: 54 theFractionalProb.Init(aDataFile, CLHEP::eV);
55 theThetaDist.Init(aDataFile, CLHEP::eV); 55 theThetaDist.Init(aDataFile, CLHEP::eV);
56 } 56 }
57 57
58 inline G4double GetFractionalProbability(G 58 inline G4double GetFractionalProbability(G4double anEnergy) override
59 { 59 {
60 return theFractionalProb.GetY(anEnergy); 60 return theFractionalProb.GetY(anEnergy);
61 } 61 }
62 62
63 inline G4double Sample(G4double anEnergy) 63 inline G4double Sample(G4double anEnergy) override
64 { 64 {
65 G4double theta = theThetaDist.GetY(anEne 65 G4double theta = theThetaDist.GetY(anEnergy) * CLHEP::eV;
66 G4double random, cut, max, result = 0.; 66 G4double random, cut, max, result = 0.;
67 max = 10. * theta; 67 max = 10. * theta;
68 G4int icounter = 0; 68 G4int icounter = 0;
69 G4int icounter_max = 1024; 69 G4int icounter_max = 1024;
70 do { 70 do {
71 icounter++; 71 icounter++;
72 if (icounter > icounter_max) { 72 if (icounter > icounter_max) {
73 G4cout << "Loop-counter exceeded the 73 G4cout << "Loop-counter exceeded the threshold value at " << __LINE__ << "th line of "
74 << __FILE__ << "." << G4endl; 74 << __FILE__ << "." << G4endl;
75 break; 75 break;
76 } 76 }
77 random = G4UniformRand(); 77 random = G4UniformRand();
78 result = -theta * G4Log(random); 78 result = -theta * G4Log(random);
79 cut = G4UniformRand(); 79 cut = G4UniformRand();
80 } while (cut > result / max); // Loop c 80 } while (cut > result / max); // Loop checking, 11.05.2015, T. Koi
81 return result; 81 return result;
82 } 82 }
83 83
84 private: 84 private:
85 inline G4double Evapo(G4double anEnergy, G 85 inline G4double Evapo(G4double anEnergy, G4double theta)
86 { 86 {
87 G4double result = (anEnergy * CLHEP::eV) 87 G4double result = (anEnergy * CLHEP::eV) * G4Exp(-anEnergy * CLHEP::eV / theta);
88 return result; 88 return result;
89 } 89 }
90 90
91 private: 91 private:
92 G4double expm1; 92 G4double expm1;
93 93
94 G4ParticleHPVector theFractionalProb; 94 G4ParticleHPVector theFractionalProb;
95 95
96 G4ParticleHPVector theThetaDist; 96 G4ParticleHPVector theThetaDist;
97 }; 97 };
98 98
99 #endif 99 #endif
100 100