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25 //
26 // neutron_hp -- source file
27 // J.P. Wellisch, Nov-1996
28 // A prototype of the low energy neutron trans
29 //
30 // P. Arce, June-2014 Conversion neutron_hp to
31 //
32 #include "G4ParticleHPIsotropic.hh"
33
34 #include "G4Alpha.hh"
35 #include "G4Deuteron.hh"
36 #include "G4Electron.hh"
37 #include "G4Gamma.hh"
38 #include "G4He3.hh"
39 #include "G4IonTable.hh"
40 #include "G4Neutron.hh"
41 #include "G4PhysicalConstants.hh"
42 #include "G4Positron.hh"
43 #include "G4Proton.hh"
44 #include "G4SystemOfUnits.hh"
45 #include "G4Triton.hh"
46 #include "Randomize.hh"
47
48 void G4ParticleHPIsotropic::Init(std::istream&
49
50 G4ReactionProduct* G4ParticleHPIsotropic::Samp
51 {
52 auto result = new G4ReactionProduct;
53 auto Z = static_cast<G4int>(massCode / 1000)
54 auto A = static_cast<G4int>(massCode - 1000
55
56 if (massCode == 0) {
57 result->SetDefinition(G4Gamma::Gamma());
58 }
59 else if (A == 0) {
60 result->SetDefinition(G4Electron::Electron
61 if (Z == 1) result->SetDefinition(G4Positr
62 }
63 else if (A == 1) {
64 result->SetDefinition(G4Neutron::Neutron()
65 if (Z == 1) result->SetDefinition(G4Proton
66 }
67 else if (A == 2) {
68 result->SetDefinition(G4Deuteron::Deuteron
69 }
70 else if (A == 3) {
71 result->SetDefinition(G4Triton::Triton());
72 if (Z == 2) result->SetDefinition(G4He3::H
73 }
74 else if (A == 4) {
75 result->SetDefinition(G4Alpha::Alpha());
76 // 110607 TK modified following parts for
77 // if(Z!=2) throw G4HadronicException(__FI
78 if (Z != 2) {
79 result->SetDefinition(G4IonTable::GetIon
80 }
81 }
82 else {
83 // 110607 TK modified following parts for
84 result->SetDefinition(G4IonTable::GetIonTa
85 // throw G4HadronicException(__FILE__, __L
86 }
87
88 // Bug #1745 DHW G4double cosTh = G4UniformR
89 G4double cosTh = 2. * G4UniformRand() - 1.;
90 G4double phi = twopi * G4UniformRand();
91 G4double theta = std::acos(cosTh);
92 G4double sinth = std::sin(theta);
93
94 // we need the the Q value of the reaction
95 result->SetKineticEnergy(std::max(0.001 * Me
96 G4double mtot = result->GetTotalMomentum();
97 G4ThreeVector tempVector(mtot * sinth * std:
98 mtot * cosTh);
99 result->SetMomentum(tempVector);
100
101 return result;
102 }
103