| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 // neutron_hp -- source file
27 // J.P. Wellisch, Nov-1996
28 // A prototype of the low energy neutron transport model.
29 //
30 // P. Arce, June-2014 Conversion neutron_hp to particle_hp
31 //
32 #include "G4ParticleHPFissionBaseFS.hh"
33
34 #include "G4Alpha.hh"
35 #include "G4Deuteron.hh"
36 #include "G4LorentzVector.hh"
37 #include "G4Nucleus.hh"
38 #include "G4ParticleHPDataUsed.hh"
39 #include "G4ParticleHPManager.hh"
40 #include "G4Proton.hh"
41 #include "G4ReactionProduct.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "G4ThreeVector.hh"
44 #include "G4Triton.hh"
45
46 void G4ParticleHPFissionBaseFS::Init(G4double A, G4double Z, G4int M, const G4String& dirName,
47 const G4String& bit, G4ParticleDefinition*)
48 {
49 G4String tString = dirName;
50 G4bool dbool;
51 const G4ParticleHPDataUsed& aFile =
52 theNames.GetName(static_cast<G4int>(A), static_cast<G4int>(Z), M, tString, bit, dbool);
53 const G4String& filename = aFile.GetName();
54 SetAZMs(A, Z, M, aFile);
55 // theBaseA = aFile.GetA();
56 // theBaseZ = aFile.GetZ();
57 // if(!dbool || ( Z<2.5 && ( std::abs(theBaseZ - Z)>0.0001 || std::abs(theBaseA - A)>0.0001) ) )
58 if (!dbool
59 || (Z < 2.5 && (std::abs(theNDLDataZ - Z) > 0.0001 || std::abs(theNDLDataA - A) > 0.0001)))
60 {
61 hasAnyData = false;
62 hasFSData = false;
63 hasXsec = false;
64 return; // no data for exactly this isotope.
65 }
66
67 // std::ifstream theData(filename, std::ios::in);
68 std::istringstream theData(std::ios::in);
69 G4ParticleHPManager::GetInstance()->GetDataStream(filename, theData);
70 G4int dummy;
71 if (!(theData)) {
72 // theData.close();
73 hasFSData = false;
74 hasXsec = false;
75 hasAnyData = false;
76 return; // no data for this FS for this isotope
77 }
78 theData >> dummy >> dummy;
79 G4int total;
80 theData >> total;
81 theXsection->Init(theData, total, eV);
82 if (!(theData >> dummy)) {
83 hasFSData = false;
84 // theData.close();
85 return;
86 }
87 theData >> dummy;
88
89 theAngularDistribution.Init(theData);
90
91 theData >> dummy >> dummy;
92
93 theEnergyDistribution.Init(theData);
94 // theData.close();
95 }
96
97 G4DynamicParticleVector* G4ParticleHPFissionBaseFS::ApplyYourself(G4int nPrompt)
98 {
99 // if therere were no data for this isotope, break out.
100 if (!HasFSData()) {
101 return nullptr;
102 }
103
104 G4int i;
105 auto aResult = new G4DynamicParticleVector;
106 G4ReactionProduct boosted;
107 boosted.Lorentz(*(fCache.Get().theNeutronRP), *(fCache.Get().theTarget));
108 G4double eKinetic = boosted.GetKineticEnergy();
109
110 // Build neutrons
111 std::vector<G4ReactionProduct> theNeutrons;
112 for (i = 0; i < nPrompt; i++) {
113 theNeutrons.emplace_back();
114 theNeutrons[i].SetDefinition(G4Neutron::Neutron());
115 }
116
117 // sample energies
118 G4int dummy;
119 for (i = 0; i < nPrompt; i++) {
120 // always in the lab system (if file-5)
121 theNeutrons[i].SetKineticEnergy(theEnergyDistribution.Sample(eKinetic, dummy));
122 }
123
124 // sample neutron angular distribution
125 for (i = 0; i < nPrompt; i++) {
126 theAngularDistribution.SampleAndUpdate(theNeutrons[i]);
127 }
128
129 // already in lab. Add neutrons to dynamic particle vector
130 for (i = 0; i < nPrompt; i++) {
131 auto it = new G4DynamicParticle;
132 it->SetDefinition(theNeutrons[i].GetDefinition());
133 it->SetMomentum(theNeutrons[i].GetMomentum());
134 aResult->push_back(it);
135 }
136
137 // return the result
138 return aResult;
139 }
140