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26 ////////////////////////////////////////////////////////////////////////////////
27 // //
28 // File: G4LENDGammaModel.cc //
29 // Date: 30 March 2020 //
30 // Author: Dennis H. Wright //
31 // //
32 // Description: model for inelastic scattering of gammas from nuclei //
33 // including gamma-induced fission. This model is very similar //
34 // to G4LENDCombinedModel except that it does not sample //
35 // elastic or capture reactions since there are no such data //
36 // for gammas in GND. //
37 // //
38 ////////////////////////////////////////////////////////////////////////////////
39
40 #include "G4LENDGammaModel.hh"
41 #include "G4LENDGammaCrossSection.hh"
42 #include "G4LENDInelastic.hh"
43 #include "G4LENDFission.hh"
44 #include "G4DynamicParticle.hh"
45
46 G4LENDGammaModel::G4LENDGammaModel(G4ParticleDefinition* pd)
47 :G4LENDModel("LENDGammaModel") {
48 proj = pd;
49 crossSection = new G4LENDGammaCrossSection(pd);
50 inelastic = new G4LENDInelastic(pd);
51 fission = new G4LENDFission(pd);
52 channels[0] = inelastic;
53 channels[1] = fission;
54 }
55
56 void G4LENDGammaModel::BuildPhysicsTable(const G4ParticleDefinition& projectile) {
57 crossSection->BuildPhysicsTable(projectile);
58 create_used_target_map();
59 }
60
61 G4bool G4LENDGammaModel::HasData(const G4DynamicParticle*, G4int iZ, G4int iA,
62 G4int iM, const G4Isotope*, const G4Element*,
63 const G4Material*)
64 {
65 G4bool result = false;
66 if (get_target_from_map(lend_manager->GetNucleusEncoding(iZ, iA, iM) ) != nullptr) result = true;
67 return result;
68 }
69
70
71 G4HadFinalState* G4LENDGammaModel::ApplyYourself(const G4HadProjectile& aTrack,
72 G4Nucleus& aTarg)
73 {
74 G4LENDModel* channel = nullptr;
75
76 G4int iZ = aTarg.GetZ_asInt();
77 G4int iA = aTarg.GetA_asInt();
78 //To pass kinetic energy, need to generate dynamic particle
79 G4DynamicParticle* dp = new G4DynamicParticle(proj, G4ThreeVector(0.,0.,1.),
80 aTrack.GetKineticEnergy() );
81 G4int ichannel = crossSection->SelectChannel(dp, iZ, iA, aTarg.GetIsotope(),
82 nullptr, aTrack.GetMaterial() );
83 delete dp;
84 channel = channels[ichannel];
85 return channel->ApplyYourself(aTrack, aTarg);
86 }
87
88