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 | // |
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27 | // ********************************************************************** |
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28 | // * * |
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29 | // * GEANT 4 xray_telescope advanced example * |
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30 | // * * |
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31 | // * MODULE: XrayTelStepCut.hh * |
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32 | // * ------- * |
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33 | // * * |
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34 | // * Version: 0.4 * |
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35 | // * Date: 06/11/00 * |
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36 | // * Author: R Nartallo * |
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37 | // * Organisation: ESA/ESTEC, Noordwijk, THe Netherlands * |
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38 | // * * |
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39 | // ********************************************************************** |
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40 | // |
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41 | // CHANGE HISTORY |
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42 | // -------------- |
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43 | // |
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44 | // 06.11.2000 R.Nartallo |
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45 | // - First implementation of X-ray Telescope advanced example. |
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46 | // - Based on Chandra and XMM models |
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47 | // |
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48 | // |
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49 | // ********************************************************************** |
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50 | |
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51 | #ifndef XrayTelStepCut_h |
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52 | #define XrayTelStepCut_h 1 |
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53 | |
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54 | #include "G4ios.hh" |
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55 | #include "G4VDiscreteProcess.hh" |
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56 | #include "G4Step.hh" |
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57 | #include "globals.hh" |
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58 | |
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59 | class XrayTelStepCut : public G4VDiscreteProcess |
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60 | { |
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61 | public: |
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62 | |
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63 | XrayTelStepCut(const G4String& processName ="UserStepCut" ); |
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64 | XrayTelStepCut(XrayTelStepCut &); |
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65 | |
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66 | ~XrayTelStepCut(); |
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67 | |
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68 | G4double PostStepGetPhysicalInteractionLength( |
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69 | const G4Track& track, |
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70 | G4double previousStepSize, |
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71 | G4ForceCondition* condition |
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72 | ); |
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73 | |
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74 | G4VParticleChange* PostStepDoIt( |
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75 | const G4Track& , |
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76 | const G4Step& |
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77 | ); |
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78 | |
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79 | void SetMaxStep(G4double); |
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80 | |
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81 | protected: |
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82 | |
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83 | // it is not needed here ! |
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84 | G4double GetMeanFreePath(const G4Track& aTrack, |
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85 | G4double previousStepSize, |
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86 | G4ForceCondition* condition |
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87 | ); |
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88 | |
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89 | |
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90 | private: |
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91 | |
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92 | // hide assignment operator as private |
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93 | XrayTelStepCut & operator=(const XrayTelStepCut &right); |
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94 | |
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95 | private: |
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96 | |
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97 | G4double MaxChargedStep ; |
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98 | }; |
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99 | |
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100 | // inlined function members implementation |
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101 | |
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102 | #include "G4Step.hh" |
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103 | #include "G4Track.hh" |
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104 | #include "G4UserLimits.hh" |
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105 | #include "G4VParticleChange.hh" |
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106 | #include "G4EnergyLossTables.hh" |
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107 | |
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108 | inline G4double XrayTelStepCut::PostStepGetPhysicalInteractionLength( |
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109 | const G4Track& aTrack, |
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110 | G4double, |
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111 | G4ForceCondition* condition |
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112 | ) |
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113 | { |
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114 | // condition is set to "Not Forced" |
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115 | *condition = NotForced; |
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116 | |
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117 | G4double ProposedStep = DBL_MAX; |
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118 | |
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119 | if((MaxChargedStep > 0.) && |
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120 | (aTrack.GetVolume() != NULL) && |
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121 | (aTrack.GetVolume()->GetName() == "Absorber") && |
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122 | (aTrack.GetDynamicParticle()->GetDefinition()->GetPDGCharge() != 0.)) |
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123 | ProposedStep = MaxChargedStep ; |
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124 | |
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125 | return ProposedStep; |
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126 | } |
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127 | |
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128 | inline G4VParticleChange* XrayTelStepCut::PostStepDoIt( |
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129 | const G4Track& aTrack, |
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130 | const G4Step& |
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131 | ) |
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132 | { |
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133 | // do nothing |
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134 | aParticleChange.Initialize(aTrack); |
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135 | return &aParticleChange; |
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136 | } |
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137 | |
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138 | inline G4double XrayTelStepCut::GetMeanFreePath(const G4Track&, |
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139 | G4double, |
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140 | G4ForceCondition* |
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141 | ) |
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142 | { |
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143 | return 0.; |
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144 | } |
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145 | |
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146 | #endif |
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147 | |
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