1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // Calculation of the total, elastic and inelastic cross-sections |
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27 | // based on Barashenkov parametrisations of pion data |
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28 | // |
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29 | // 16.08.06 V.Ivanchenko - first implementation |
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30 | // 22.01.07 V.Ivanchenko - add cross section interfaces with Z and A |
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31 | // 05.03.07 V.Ivanchenko - add IfZAApplicable |
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32 | // |
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33 | |
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34 | |
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35 | #ifndef G4UPiNuclearCrossSection_h |
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36 | #define G4UPiNuclearCrossSection_h |
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37 | |
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38 | #include "G4VCrossSectionDataSet.hh" |
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39 | #include "G4DynamicParticle.hh" |
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40 | #include "G4DataVector.hh" |
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41 | #include "globals.hh" |
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42 | #include <vector> |
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43 | |
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44 | class G4PhysicsTable; |
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45 | |
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46 | class G4UPiNuclearCrossSection : public G4VCrossSectionDataSet |
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47 | { |
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48 | public: |
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49 | |
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50 | G4UPiNuclearCrossSection(); |
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51 | |
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52 | virtual ~G4UPiNuclearCrossSection(); |
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53 | |
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54 | virtual |
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55 | G4bool IsApplicable(const G4DynamicParticle* aParticle, |
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56 | const G4Element* anElement); |
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57 | |
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58 | virtual |
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59 | G4bool IsZAApplicable(const G4DynamicParticle* aParticle, |
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60 | G4double Z, G4double A); |
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61 | |
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62 | virtual |
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63 | G4double GetCrossSection(const G4DynamicParticle* aParticle, |
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64 | const G4Element* anElement, G4double T=0.); |
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65 | |
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66 | virtual |
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67 | G4double GetIsoZACrossSection(const G4DynamicParticle* aParticle, |
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68 | G4double Z, G4double A, G4double T=0.); |
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69 | |
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70 | G4double GetElasticCrossSection(const G4DynamicParticle* aParticle, |
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71 | const G4Element* anElement); |
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72 | |
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73 | G4double GetElasticCrossSection(const G4DynamicParticle* aParticle, |
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74 | G4double Z, G4double A); |
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75 | |
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76 | G4double GetInelasticCrossSection(const G4DynamicParticle* aParticle, |
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77 | const G4Element* anElement); |
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78 | |
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79 | G4double GetInelasticCrossSection(const G4DynamicParticle* aParticle, |
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80 | G4double Z, G4double A); |
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81 | |
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82 | void BuildPhysicsTable(const G4ParticleDefinition&); |
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83 | |
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84 | void DumpPhysicsTable(const G4ParticleDefinition&); |
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85 | |
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86 | private: |
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87 | |
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88 | void Initialise(); |
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89 | |
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90 | void AddDataSet(const G4String& p, const G4double* tot, |
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91 | const G4double* in, const G4double* e, G4int n); |
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92 | |
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93 | G4double Interpolate(G4double Z, G4double A, G4double ekin, |
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94 | G4PhysicsTable*); |
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95 | |
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96 | G4int NZ; |
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97 | std::vector<G4int> theZ; |
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98 | G4DataVector theA; |
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99 | G4PhysicsTable* piPlusElastic; |
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100 | G4PhysicsTable* piPlusInelastic; |
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101 | G4PhysicsTable* piMinusElastic; |
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102 | G4PhysicsTable* piMinusInelastic; |
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103 | |
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104 | G4double aPower; |
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105 | G4double elow; |
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106 | G4double elowest; |
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107 | G4double APower[93]; |
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108 | |
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109 | const G4ParticleDefinition* piPlus; |
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110 | const G4ParticleDefinition* piMinus; |
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111 | }; |
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112 | |
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113 | inline G4bool G4UPiNuclearCrossSection::IsApplicable( |
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114 | const G4DynamicParticle* part, |
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115 | const G4Element* elm) |
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116 | { |
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117 | return IsZAApplicable(part, elm->GetZ(), elm->GetN()); |
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118 | } |
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119 | |
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120 | inline G4bool G4UPiNuclearCrossSection::IsZAApplicable( |
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121 | const G4DynamicParticle* part, |
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122 | G4double Z, G4double) |
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123 | { |
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124 | return ((part->GetDefinition() == piMinus || |
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125 | part->GetDefinition() == piPlus) && |
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126 | Z > 1.5); |
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127 | } |
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128 | |
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129 | inline G4double G4UPiNuclearCrossSection::GetCrossSection( |
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130 | const G4DynamicParticle* dp, |
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131 | const G4Element* elm, G4double) |
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132 | { |
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133 | return GetInelasticCrossSection(dp, elm->GetZ(), elm->GetN()); |
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134 | } |
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135 | |
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136 | inline G4double G4UPiNuclearCrossSection::GetIsoZACrossSection( |
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137 | const G4DynamicParticle* dp, |
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138 | G4double Z, G4double A, G4double) |
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139 | { |
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140 | return GetInelasticCrossSection(dp, Z, A); |
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141 | } |
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142 | |
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143 | inline G4double G4UPiNuclearCrossSection::GetInelasticCrossSection( |
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144 | const G4DynamicParticle* dp, |
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145 | const G4Element* elm) |
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146 | { |
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147 | return GetInelasticCrossSection(dp, elm->GetZ(), elm->GetN()); |
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148 | } |
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149 | |
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150 | inline G4double G4UPiNuclearCrossSection::GetElasticCrossSection( |
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151 | const G4DynamicParticle* dp, |
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152 | const G4Element* elm) |
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153 | { |
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154 | return GetElasticCrossSection(dp, elm->GetZ(), elm->GetN()); |
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155 | } |
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156 | |
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157 | #endif |
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