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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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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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21 | // * any work based on the software) you agree to acknowledge its * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // $Id: G4hMultipleScattering.cc,v 1.13 2008/10/15 17:53:44 vnivanch Exp $ |
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27 | // GEANT4 tag $Name: geant4-09-02 $ |
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28 | // |
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29 | // ----------------------------------------------------------------------------- |
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30 | // |
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31 | // GEANT4 Class file |
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32 | // |
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33 | // File name: G4hMultipleScattering |
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34 | // |
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35 | // Author: Laszlo Urban |
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36 | // |
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37 | // Creation date: 24.10.2006 cloned from G4MultipleScattering |
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38 | // |
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39 | // Modified: |
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40 | // 12-02-07 skin can be changed via UI command (VI) |
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41 | // 20.03.07 Remove local parameter skin, set facgeom=0.1(V.Ivanchenko) |
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42 | // |
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43 | // ----------------------------------------------------------------------------- |
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44 | // |
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45 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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46 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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47 | |
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48 | #include "G4hMultipleScattering.hh" |
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49 | #include "G4UrbanMscModel.hh" |
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50 | #include "G4UrbanMscModel90.hh" |
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51 | #include "G4MscStepLimitType.hh" |
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52 | |
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53 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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54 | |
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55 | using namespace std; |
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56 | |
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57 | G4hMultipleScattering::G4hMultipleScattering(const G4String& processName) |
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58 | : G4VMultipleScattering(processName) |
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59 | { |
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60 | isInitialized = false; |
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61 | isIon = false; |
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62 | SetStepLimitType(fMinimal); |
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63 | } |
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64 | |
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65 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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66 | |
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67 | G4hMultipleScattering::~G4hMultipleScattering() |
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68 | {} |
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69 | |
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70 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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71 | |
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72 | G4bool G4hMultipleScattering::IsApplicable (const G4ParticleDefinition& p) |
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73 | { |
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74 | return (p.GetPDGCharge() != 0.0 && !p.IsShortLived()); |
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75 | } |
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76 | |
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77 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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78 | |
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79 | void G4hMultipleScattering::InitialiseProcess(const G4ParticleDefinition* p) |
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80 | { |
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81 | // Modification of parameters between runs |
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82 | if(isInitialized) { |
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83 | if (p->GetParticleType() != "nucleus" && p->GetPDGMass() < GeV) { |
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84 | mscUrban->SetStepLimitType(StepLimitType()); |
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85 | mscUrban->SetLateralDisplasmentFlag(LateralDisplasmentFlag()); |
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86 | mscUrban->SetSkin(Skin()); |
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87 | mscUrban->SetRangeFactor(RangeFactor()); |
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88 | mscUrban->SetGeomFactor(GeomFactor()); |
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89 | } |
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90 | return; |
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91 | } |
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92 | |
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93 | // defaults for ions, which cannot be overwritten |
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94 | if (p->GetParticleType() == "nucleus" || p->GetPDGMass() > GeV) { |
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95 | SetStepLimitType(fMinimal); |
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96 | SetLateralDisplasmentFlag(false); |
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97 | SetBuildLambdaTable(false); |
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98 | if(p->GetParticleType() == "nucleus") isIon = true; |
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99 | } |
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100 | |
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101 | // initialisation of parameters |
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102 | G4String part_name = p->GetParticleName(); |
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103 | mscUrban = new G4UrbanMscModel90(); |
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104 | |
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105 | mscUrban->SetStepLimitType(StepLimitType()); |
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106 | mscUrban->SetLateralDisplasmentFlag(LateralDisplasmentFlag()); |
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107 | mscUrban->SetSkin(Skin()); |
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108 | mscUrban->SetRangeFactor(RangeFactor()); |
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109 | mscUrban->SetGeomFactor(GeomFactor()); |
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110 | |
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111 | AddEmModel(1,mscUrban); |
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112 | isInitialized = true; |
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113 | } |
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114 | |
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115 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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116 | |
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117 | void G4hMultipleScattering::PrintInfo() |
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118 | { |
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119 | G4cout << " RangeFactor= " << RangeFactor() |
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120 | << ", step limit type: " << StepLimitType() |
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121 | << ", lateralDisplacement: " << LateralDisplasmentFlag() |
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122 | << ", skin= " << Skin() |
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123 | // << ", geomFactor= " << GeomFactor() |
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124 | << G4endl; |
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125 | } |
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126 | |
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127 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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128 | |
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129 | G4double G4hMultipleScattering::AlongStepGetPhysicalInteractionLength( |
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130 | const G4Track& track, |
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131 | G4double, |
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132 | G4double currentMinimalStep, |
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133 | G4double& currentSafety, |
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134 | G4GPILSelection* selection) |
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135 | { |
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136 | // get Step limit proposed by the process |
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137 | valueGPILSelectionMSC = NotCandidateForSelection; |
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138 | |
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139 | G4double escaled = track.GetKineticEnergy(); |
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140 | if(isIon) escaled *= track.GetDynamicParticle()->GetMass()/proton_mass_c2; |
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141 | |
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142 | G4double steplength = GetMscContinuousStepLimit(track, |
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143 | escaled, |
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144 | currentMinimalStep, |
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145 | currentSafety); |
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146 | // G4cout << "StepLimit= " << steplength << G4endl; |
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147 | // set return value for G4GPILSelection |
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148 | *selection = valueGPILSelectionMSC; |
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149 | return steplength; |
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150 | } |
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151 | |
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152 | //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo...... |
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153 | |
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