| 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 | // Rich advanced example for Geant4
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| 27 | // PadHpdPhotoElectricEffect.hh for Rich of LHCb
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| 28 | // History:
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| 29 | // Created: Sajan Easo (Sajan.Easo@cern.ch)
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| 30 | // Revision and changes: Patricia Mendez (Patricia.Mendez@cern.ch)
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| 31 | /////////////////////////////////////////////////////////////////////////////
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| 32 | #ifndef PadHpdPhotoElectricEffect_h
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| 33 | #define PadHpdPhotoElectricEffect_h 1
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| 34 | #include "G4ios.hh"
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| 35 | #include "globals.hh"
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| 36 | #include "Randomize.hh"
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| 37 | #include "G4VDiscreteProcess.hh"
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| 38 | #include "G4PhotoElectricEffect.hh"
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| 39 | #include "G4DynamicParticle.hh"
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| 40 | #include "G4OpticalPhoton.hh"
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| 41 | #include "G4Electron.hh"
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| 42 | #include "G4Step.hh"
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| 43 | #include "RichTbMaterialParameters.hh"
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| 44 | class RichTbAnalysisManager;
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| 45 | class RichTbRunConfig;
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| 46 |
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| 47 | class PadHpdPhotoElectricEffect : public G4VDiscreteProcess {
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| 48 | public:
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| 49 |
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| 50 | PadHpdPhotoElectricEffect(const G4String&,RichTbRunConfig* );
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| 51 | virtual ~PadHpdPhotoElectricEffect();
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| 52 |
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| 53 | G4bool IsApplicable(const G4ParticleDefinition& );
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| 54 | // is applicable for optical photon only
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| 55 |
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| 56 | G4double GetMeanFreePath(const G4Track& ,
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| 57 | G4double ,
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| 58 | G4ForceCondition* condition);
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| 59 | //returns infinity (max integer possible) . This means the process does
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| 60 | // not limit the step, but sets the Forced condition for the DoIt to be
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| 61 | // invoked at every step. But only at the boundary between Hpd quartz
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| 62 | // window and the Hpd photocathode any action be taken.
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| 63 |
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| 64 | G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
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| 65 | const G4Step& aStep);
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| 66 | //The method for implementing the HpdPhotoelectric effect.
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| 67 |
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| 68 |
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| 69 | G4double getHpdQEff(G4int, G4double);
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| 70 | // To interpolate the QE from QE data.
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| 71 | G4double getHpdPhElectronKE()
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| 72 | {return HpdPhElectronKE; }
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| 73 | G4double getPhCathodeToSilDetDist()
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| 74 | {return PhCathodeToSilDetDist; }
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| 75 | G4double getHpdDemag(G4int hpdnum) {return DemagnificationFactor[hpdnum]; }
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| 76 | private:
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| 77 | // RichTbAnalysisManager* rAnalysisPhy;
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| 78 | RichTbRunConfig* rConfig;
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| 79 | G4String PrePhotoElectricVolName;
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| 80 | G4String PostPhotoElectricVolName;
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| 81 | G4double HpdPhElectronKE;
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| 82 | G4double PhCathodeToSilDetDist;
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| 83 | G4double PSFsigma;
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| 84 | std::vector<G4double>DemagnificationFactor;
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| 85 | std::vector<G4double>DemagnificationQuadFactor;
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| 86 | std::vector<std::vector<G4double> >HpdQE;
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| 87 | std::vector<std::vector<G4double> >HpdWabin;
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| 88 |
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| 89 | };
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| 90 |
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| 91 | #endif
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