Geant4 11.2.2
Toolkit for the simulation of the passage of particles through matter
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G4LENDCombinedCrossSection.cc
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31#include "Randomize.hh"
32
33
35:G4LENDCrossSection("LENDCombinedCrossSection")
36{
37 proj = pd;
38 elasticXS = new G4LENDElasticCrossSection( pd );
39 inelasticXS = new G4LENDInelasticCrossSection( pd );
40 captureXS = new G4LENDCaptureCrossSection( pd );
41 fissionXS = new G4LENDFissionCrossSection( pd );
42}
43
45{
46 elasticXS->BuildPhysicsTable( pd );
47 inelasticXS->BuildPhysicsTable( pd );
48 captureXS->BuildPhysicsTable( pd );
49 fissionXS->BuildPhysicsTable( pd );
51}
52
54 const G4Isotope* isotope , const G4Element* /*elment*/ , const G4Material* material )
55{
56 G4double XS = 0.0;
57 XS += elasticXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
58 XS += inelasticXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
59 XS += captureXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
60 XS += fissionXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
61 //G4cout << "G4LENDCombinedCrossSection::GetIsoCrossSection " << XS/CLHEP::barn << " [barn]" << G4endl;
62 return XS;
63}
64
66 const G4Isotope* isotope , const G4Element* /*elment*/ , const G4Material* material )
67{
68 G4int ichannel = 3;
69 G4double XSs[4];
70 XSs[0] = elasticXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
71 XSs[1] = XSs[0] + inelasticXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
72 XSs[2] = XSs[1] + captureXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
73 XSs[3] = XSs[2] + fissionXS->GetIsoCrossSection( dp, iZ, iA, isotope, NULL , material );
74
75 G4double total = XSs[3];
76
77 G4double random = G4UniformRand();
78 for (G4int i = 0 ; i < 4 ; i++) {
79 if (random*total < XSs[i]) {
80 ichannel = i;
81 break;
82 }
83 }
84
85 return ichannel;
86}
double G4double
Definition G4Types.hh:83
int G4int
Definition G4Types.hh:85
#define G4UniformRand()
Definition Randomize.hh:52
G4LENDCombinedCrossSection(G4ParticleDefinition *pd)
G4double GetIsoCrossSection(const G4DynamicParticle *, G4int, G4int, const G4Isotope *, const G4Element *, const G4Material *)
G4int SelectChannel(const G4DynamicParticle *, G4int, G4int, const G4Isotope *, const G4Element *, const G4Material *)
void BuildPhysicsTable(const G4ParticleDefinition &)
G4double GetIsoCrossSection(const G4DynamicParticle *, G4int, G4int, const G4Isotope *, const G4Element *, const G4Material *)
G4ParticleDefinition * proj
void BuildPhysicsTable(const G4ParticleDefinition &)