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25 // 25 //
26 // author: Vladimir.Grichine@cern.ch 26 // author: Vladimir.Grichine@cern.ch
27 // 27 //
28 // Implements data from: Barashenkov V.S., Nuc 28 // Implements data from: Barashenkov V.S., Nucleon-Nucleus Cross Section,
29 // Preprint JINR P2-89-770, p. 12, Dubna 1989 29 // Preprint JINR P2-89-770, p. 12, Dubna 1989 (scanned version from KEK)
30 // Based on G. Folger version of G4PiNuclearCr 30 // Based on G. Folger version of G4PiNuclearCrossSection class
31 // 31 //
32 // Modified: 16.08.2018 V.Ivanchenko - major u 32 // Modified: 16.08.2018 V.Ivanchenko - major update
33 // 33 //
34 34
35 #include "G4NucleonNuclearCrossSection.hh" 35 #include "G4NucleonNuclearCrossSection.hh"
36 #include "G4DynamicParticle.hh" 36 #include "G4DynamicParticle.hh"
37 #include "G4ParticleDefinition.hh" 37 #include "G4ParticleDefinition.hh"
>> 38 #include "G4Neutron.hh"
>> 39 #include "G4Proton.hh"
38 #include "G4ComponentBarNucleonNucleusXsc.hh" 40 #include "G4ComponentBarNucleonNucleusXsc.hh"
39 41
>> 42 // factory
>> 43 #include "G4CrossSectionFactory.hh"
>> 44 //
>> 45 G4_DECLARE_XS_FACTORY(G4NucleonNuclearCrossSection);
>> 46
40 ////////////////////////////////////////////// 47 ///////////////////////////////////////////////////////////////////////////////
41 48
42 G4NucleonNuclearCrossSection::G4NucleonNuclear 49 G4NucleonNuclearCrossSection::G4NucleonNuclearCrossSection()
43 : G4VCrossSectionDataSet(Default_Name()) << 50 : G4VCrossSectionDataSet(Default_Name()),
>> 51 fTotalXsc(0.0), fInelasticXsc(0.0), fElasticXsc(0.0)
44 { 52 {
>> 53 theNeutron = G4Neutron::Neutron();
>> 54 theProton = G4Proton::Proton();
45 fBarash = new G4ComponentBarNucleonNucleusXs 55 fBarash = new G4ComponentBarNucleonNucleusXsc();
46 } 56 }
47 57
>> 58 ///////////////////////////////////////////////////////////////////////////////
>> 59 //
>> 60
>> 61 G4NucleonNuclearCrossSection::~G4NucleonNuclearCrossSection()
>> 62 {}
>> 63
48 ////////////////////////////////////////////// 64 ////////////////////////////////////////////////////////////////////////////
49 65
50 G4bool G4NucleonNuclearCrossSection::IsElement 66 G4bool G4NucleonNuclearCrossSection::IsElementApplicable(
51 const G4DynamicParticle*, G4int Z, cons 67 const G4DynamicParticle*, G4int Z, const G4Material*)
52 { 68 {
53 return (Z > 1); 69 return (Z > 1);
54 } 70 }
55 71
56 ////////////////////////////////////////////// 72 ////////////////////////////////////////////////////////////////////////////
57 73
58 G4double G4NucleonNuclearCrossSection::GetElem 74 G4double G4NucleonNuclearCrossSection::GetElementCrossSection(
59 const G4DynamicParticle* dp, G4int Z, 75 const G4DynamicParticle* dp, G4int Z, const G4Material*)
60 { 76 {
61 ComputeCrossSections(dp->GetDefinition(), dp 77 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
62 return fInelasticXsc; 78 return fInelasticXsc;
63 } 79 }
64 80
65 ////////////////////////////////////////////// 81 ////////////////////////////////////////////////////////////////////////////
66 82
67 void G4NucleonNuclearCrossSection::ComputeCros 83 void G4NucleonNuclearCrossSection::ComputeCrossSections(
68 const G4ParticleDefinition* pd, 84 const G4ParticleDefinition* pd,
69 G4double kinEnergy, G4int Z) 85 G4double kinEnergy, G4int Z)
70 { 86 {
71 fBarash->ComputeCrossSections(pd, kinEnergy, 87 fBarash->ComputeCrossSections(pd, kinEnergy, Z);
72 fTotalXsc = fBarash->GetTotalXsc(); 88 fTotalXsc = fBarash->GetTotalXsc();
73 fInelasticXsc = fBarash->GetInelasticXsc(); 89 fInelasticXsc = fBarash->GetInelasticXsc();
74 fElasticXsc = fBarash->GetElasticXsc(); 90 fElasticXsc = fBarash->GetElasticXsc();
>> 91 }
>> 92
>> 93 ////////////////////////////////////////////////////////////////////////////
>> 94
>> 95 void G4NucleonNuclearCrossSection::BuildPhysicsTable(const G4ParticleDefinition& part)
>> 96 {
>> 97 fBarash->BuildPhysicsTable(part);
75 } 98 }
76 99
77 ////////////////////////////////////////////// 100 ////////////////////////////////////////////////////////////////////////////
78 101
79 void 102 void
80 G4NucleonNuclearCrossSection::CrossSectionDesc 103 G4NucleonNuclearCrossSection::CrossSectionDescription(std::ostream& outFile) const
81 { 104 {
82 outFile << "G4NucleonNuclearCrossSection is 105 outFile << "G4NucleonNuclearCrossSection is a variant of the Barashenkov\n"
83 << "cross section parameterization t 106 << "cross section parameterization to be used of protons and\n"
84 << "nucleons on targets heavier than 107 << "nucleons on targets heavier than hydrogen. It is intended for\n"
85 << "use as a cross section component 108 << "use as a cross section component and is currently used by\n"
86 << "G4BGGNucleonInelasticXS. It is 109 << "G4BGGNucleonInelasticXS. It is valid for incident energies up\n"
87 << "to 1 TeV.\n"; 110 << "to 1 TeV.\n";
88 } 111 }
89 112
90 ////////////////////////////////////////////// 113 ////////////////////////////////////////////////////////////////////////////
91 114
92 115