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DsG4Scintillation.h

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// 
// 
// 
// //////////////////////////////////////////////////////////////////////
//  Scintillation Light Class Implementation
// //////////////////////////////////////////////////////////////////////
// 
//  File:        G4Scintillation.cc 
//  Description: RestDiscrete Process - Generation of Scintillation Photons
//  Version:     1.0
//  Created:     1998-11-07  
//  Author:      Peter Gumplinger
//  Updated:     2005-08-17 by Peter Gumplinger
//               > change variable name MeanNumPhotons -> MeanNumberOfPhotons
//               2005-07-28 by Peter Gumplinger
//               > add G4ProcessType to constructor
//               2004-08-05 by Peter Gumplinger
//               > changed StronglyForced back to Forced in GetMeanLifeTime
//               2002-11-21 by Peter Gumplinger
//               > change to use G4Poisson for small MeanNumberOfPhotons
//               2002-11-07 by Peter Gumplinger
//               > now allow for fast and slow scintillation component
//               2002-11-05 by Peter Gumplinger
//               > now use scintillation constants from G4Material
//               2002-05-09 by Peter Gumplinger
//               > use only the PostStepPoint location for the origin of
//                scintillation photons when energy is lost to the medium
//                by a neutral particle
//                2000-09-18 by Peter Gumplinger
//               > change: aSecondaryPosition=x0+rand*aStep.GetDeltaPosition();
//                aSecondaryTrack->SetTouchable(0);
//                2001-09-17, migration of Materials to pure STL (mma) 
//                2003-06-03, V.Ivanchenko fix compilation warnings
//    
//mail:        gum@triumf.ca
//               

//-----------------------------------------------------------------
// DsG4Scintillation
// 
// A class modified from G4Scintillation.
// Birks' law is used to calculate the scintillation photon number 
// Author: Liang Zhan, 2006/01/27
// Modified: bv@bnl.gov, 2008/4/16 for DetSim
//--------------------------------------------------------------

#ifndef DsG4Scintillation_h
#define DsG4Scintillation_h 1

#include "globals.hh"
#include "templates.hh"
#include "Randomize.hh"
#include "G4Poisson.hh"
#include "G4ThreeVector.hh"
#include "G4ParticleMomentum.hh"
#include "G4Step.hh"
#include "G4VRestDiscreteProcess.hh"
#include "G4OpticalPhoton.hh"
#include "G4DynamicParticle.hh"
#include "G4Material.hh" 
#include "G4PhysicsTable.hh"
#include "G4MaterialPropertiesTable.hh"
#include "G4PhysicsOrderedFreeVector.hh"
#include "G4UImessenger.hh"
#include "DsPhysConsOptical.h"
class G4UIcommand;
class G4UIdirectory;

// Class Description:
// RestDiscrete Process - Generation of Scintillation Photons.
// Class inherits publicly from G4VRestDiscreteProcess.
// Class Description - End:

// Class Definition

class DsG4Scintillation : public G4VRestDiscreteProcess, public G4UImessenger
{ //too lazy to create another UImessenger class

private:

        // Operators

        // DsG4Scintillation& operator=(const DsG4Scintillation &right);

public: // Without description

        // Constructors and Destructor

        DsG4Scintillation(const G4String& processName = "Scintillation",
                          G4ProcessType type = fElectromagnetic);

        // DsG4Scintillation(const DsG4Scintillation &right);

        ~DsG4Scintillation();   

        // Methods

public: // With description

        // DsG4Scintillation Process has both PostStepDoIt (for energy 
        // deposition of particles in flight) and AtRestDoIt (for energy
        // given to the medium by particles at rest)

        G4bool IsApplicable(const G4ParticleDefinition& aParticleType);
        // Returns true -> 'is applicable', for any particle type except
        // for an 'opticalphoton' 

        G4double GetMeanFreePath(const G4Track& aTrack,
                                       G4double ,
                                       G4ForceCondition* );
        // Returns infinity; i. e. the process does not limit the step,
        // but sets the 'StronglyForced' condition for the DoIt to be 
        // invoked at every step.

        G4double GetMeanLifeTime(const G4Track& aTrack,
                                 G4ForceCondition* );
        // Returns infinity; i. e. the process does not limit the time,
        // but sets the 'StronglyForced' condition for the DoIt to be
        // invoked at every step.

        G4VParticleChange* PostStepDoIt(const G4Track& aTrack, 
                                        const G4Step&  aStep);
        G4VParticleChange* AtRestDoIt (const G4Track& aTrack,
                                       const G4Step& aStep);

        // These are the methods implementing the scintillation process.

        void SetTrackSecondariesFirst(const G4bool state);
        // If set, the primary particle tracking is interrupted and any
        // produced scintillation photons are tracked next. When all 
        // have been tracked, the tracking of the primary resumes.

        G4bool GetTrackSecondariesFirst() const;
        // Returns the boolean flag for tracking secondaries first.
        
        void SetScintillationYieldFactor(const G4double yieldfactor);
        // Called to set the scintillation photon yield factor, needed when
        // the yield is different for different types of particles. This
        // scales the yield obtained from the G4MaterialPropertiesTable.
        G4double GetScintillationYieldFactor() const;
        // Returns the photon yield factor.

       void SetUseFastMu300nsTrick(const G4bool fastMu300nsTrick);
       G4bool GetUseFastMu300nsTrick() const;


        void SetScintillationExcitationRatio(const G4double excitationratio);
        // Called to set the scintillation exciation ratio, needed when
        // the scintillation level excitation is different for different
        // types of particles. This overwrites the YieldRatio obtained
        // from the G4MaterialPropertiesTable.

        G4double GetScintillationExcitationRatio() const;
        // Returns the scintillation level excitation ratio.

        G4PhysicsTable* GetFastIntegralTable() const;
        // Returns the address of the fast scintillation integral table.

        G4PhysicsTable* GetSlowIntegralTable() const;
        // Returns the address of the slow scintillation integral table.

        G4PhysicsTable* GetReemissionIntegralTable() const;
        // Returns the address of the reemission integral table.

        void DumpPhysicsTable() const;
        // Prints the fast and slow scintillation integral tables.

        // Configuration
        G4double GetPhotonWeight() const { return fPhotonWeight; }
        void SetPhotonWeight(G4double weight) { fPhotonWeight = weight; }
        void SetDoReemission(bool tf = true) { doReemission = tf; }
        bool GetDoReemission() { return doReemission; }
        void SetDoBothProcess(bool tf = true) { doBothProcess = tf; }
        bool GetDoBothProcess() { return doBothProcess; }

        G4bool GetApplyPreQE() const { return fApplyPreQE; }
        void SetApplyPreQE(G4bool a) { fApplyPreQE = a; }

        G4double GetPreQE() const { return fPreQE; }
        void SetPreQE(G4double a) { fPreQE = a; }

        void SetBirksConstant1(double c1) {birksConstant1 = c1;}
        double GetBirksConstant1() {return birksConstant1;}
        void SetBirksConstant2(double c2) {birksConstant2 = c2;}
        double GetBirksConstant2() {return birksConstant2;}

        // Don't actually do anything.  This is needed, as apposed to
        // simply not including the scintilation process, because
        // w/out this process no optical photons make it into the
        // photocathode (???) 
        void SetNoOp(bool tf = true) { m_noop = tf; }
private:

        void BuildThePhysicsTable();
        // It builds either the fast or slow scintillation integral table; 
        // or both. 

        // Class Data Members

protected:

        G4PhysicsTable* theSlowIntegralTable;
        G4PhysicsTable* theFastIntegralTable;
        G4PhysicsTable* theReemissionIntegralTable;

        // on/off flag for absorbed opticalphoton reemission
        G4bool doReemission;
        // choose only reemission of Cerenkov or both of Cerenkov and Scintillaton;
        G4bool doBothProcess;

        // Birks constant C1 and C2
        double  birksConstant1;
        double  birksConstant2;

private:

        G4bool fTrackSecondariesFirst;

        G4double YieldFactor;
        G4bool FastMu300nsTrick;
        G4double ExcitationRatio;
  
        //mean number of true photons per secondary track in GLG4Scint
        G4double fPhotonWeight;
        G4bool   fApplyPreQE;
        G4double fPreQE;
        bool m_noop;
};

// Inline methods

inline 
G4bool DsG4Scintillation::IsApplicable(const G4ParticleDefinition& aParticleType)
{
        if (aParticleType.GetParticleName() == "opticalphoton"){
           return true;
        } else {
           return true;
        }
}

inline 
void DsG4Scintillation::SetTrackSecondariesFirst(const G4bool state) 
{ 
        fTrackSecondariesFirst = state;
}

inline
G4bool DsG4Scintillation::GetTrackSecondariesFirst() const
{
        return fTrackSecondariesFirst;
}

inline
void DsG4Scintillation::SetScintillationYieldFactor(const G4double yieldfactor)
{
        YieldFactor = yieldfactor;
}


inline
G4double DsG4Scintillation::GetScintillationYieldFactor() const
{
        return YieldFactor;
}

inline 
void DsG4Scintillation::SetUseFastMu300nsTrick(const G4bool fastMu300nsTrick)
{
        FastMu300nsTrick = fastMu300nsTrick;
}

inline 
G4bool DsG4Scintillation::GetUseFastMu300nsTrick() const
{
      return  FastMu300nsTrick;
}




inline
void DsG4Scintillation::SetScintillationExcitationRatio(const G4double excitationratio)
{
        ExcitationRatio = excitationratio;
}

inline
G4double DsG4Scintillation::GetScintillationExcitationRatio() const
{
        return ExcitationRatio;
}

inline
G4PhysicsTable* DsG4Scintillation::GetSlowIntegralTable() const
{
        return theSlowIntegralTable;
}

inline
G4PhysicsTable* DsG4Scintillation::GetFastIntegralTable() const
{
        return theFastIntegralTable;
}

inline
G4PhysicsTable* DsG4Scintillation::GetReemissionIntegralTable() const
{
        return theReemissionIntegralTable;
}

inline
void DsG4Scintillation::DumpPhysicsTable() const
{
        if (theFastIntegralTable) {
           G4int PhysicsTableSize = theFastIntegralTable->entries();
           G4PhysicsOrderedFreeVector *v;

           for (G4int i = 0 ; i < PhysicsTableSize ; i++ )
           {
                v = (G4PhysicsOrderedFreeVector*)(*theFastIntegralTable)[i];
                v->DumpValues();
           }
         }

        if (theSlowIntegralTable) {
           G4int PhysicsTableSize = theSlowIntegralTable->entries();
           G4PhysicsOrderedFreeVector *v;

           for (G4int i = 0 ; i < PhysicsTableSize ; i++ )
           {
                v = (G4PhysicsOrderedFreeVector*)(*theSlowIntegralTable)[i];
                v->DumpValues();
           }
         }

        if (theReemissionIntegralTable) {
           G4int PhysicsTableSize = theReemissionIntegralTable->entries();
           G4PhysicsOrderedFreeVector *v;

           for (G4int i = 0 ; i < PhysicsTableSize ; i++ )
           {
                v = (G4PhysicsOrderedFreeVector*)(*theReemissionIntegralTable)[i];
                v->DumpValues();
           }
         }
}

#endif /* DsG4Scintillation_h */

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