| 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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