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25 //
26 //
27 //---------------------------------------------------------------------------
28 //
29 // ClassName: G4ThermalNeutrons
30 //
31 // Author: 4 May 2017 V. Ivanchenko
32 //
33 // Modified:
34 //
35 //----------------------------------------------------------------------------
36 //
37
38 #include "G4ThermalNeutrons.hh"
39
40 #include "G4ParticleDefinition.hh"
41 #include "G4ProcessManager.hh"
42 #include "G4HadronicProcess.hh"
43
44 #include "G4ParticleHPThermalScattering.hh"
45 #include "G4ParticleHPThermalScatteringData.hh"
46 #include "G4HadronicParameters.hh"
47
48 #include "G4BuilderType.hh"
49 #include "G4PhysListUtil.hh"
50 #include "G4SystemOfUnits.hh"
51
52 #include "G4PhysicsConstructorFactory.hh"
53 G4_DECLARE_PHYSCONSTR_FACTORY(G4ThermalNeutrons);
54
55 G4ThermalNeutrons::G4ThermalNeutrons(G4int ver) :
56 G4VHadronPhysics("ThermalNeutrons", ver) {
57 // because it is an addition, the type of this constructor is 0
58 }
59
60 G4ThermalNeutrons::~G4ThermalNeutrons() {}
61
62 void G4ThermalNeutrons::ConstructProcess() {
63
64 if(G4HadronicParameters::Instance()->GetVerboseLevel() > 1) {
65 G4cout << "### " << GetPhysicsName() << " Construct Processes " << G4endl;
66 }
67 G4Neutron* part = G4Neutron::Neutron();
68 G4HadronicProcess* hpel = G4PhysListUtil::FindElasticProcess(part);
69 if(nullptr == hpel) {
70 G4cout << "### " << GetPhysicsName()
71 << " WARNING: Fail to add thermal neutron scattering" << G4endl;
72 return;
73 }
74
75 std::size_t ni = (hpel->GetHadronicInteractionList()).size();
76 if(ni < 1) {
77 G4cout << "### " << GetPhysicsName()
78 << " WARNING: Fail to add thermal neutron scattering - Nint= "
79 << ni << G4endl;
80 return;
81 }
82 (hpel->GetHadronicInteractionList())[ni-1]->SetMinEnergy(4*CLHEP::eV);
83
84 hpel->RegisterMe(new G4ParticleHPThermalScattering());
85 hpel->AddDataSet(new G4ParticleHPThermalScatteringData());
86
87 }
88