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Gabriele Cosmo
2016-06-09 12:11:21 +02:00
parent 516dbf1a58
commit d93e1e39a9
5384 changed files with 125662 additions and 82444 deletions
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source/processes/electromagnetic/standard/include/G4eplusAnnihilation.hh
+83 -120
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@@ -20,149 +20,112 @@
// * statement, and all its terms. *
// ********************************************************************
//
// $Id: G4eplusAnnihilation.hh,v 1.17 2005/05/12 11:06:43 vnivanch Exp $
// GEANT4 tag $Name: geant4-07-01 $
//
// $Id: G4eplusAnnihilation.hh,v 1.15 2004/11/10 08:53:19 vnivanch Exp $
// GEANT4 tag $Name: geant4-07-00-cand-01 $
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name: G4eplusAnnihilation
//
// Author: Vladimir Ivanchenko on base of Michel Maire code
//
// Creation date: 02.08.2004
//
// Modifications:
// 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko)
// 15-03-05 Update interface according to changings in G4VEmProcess (V.Ivanchenko)
// 08-04-05 Major optimisation of internal interfaces (V.Ivanchenko)
// 04-05-05, Make class to be default (V.Ivanchenko)
//
//
// Class Description:
//
// This class manages the process of e+ annihilation into 2 gammas
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
// 10-01-97, crossection table + meanfreepath table, M.Maire
// 17-03-97, merge 'in fly' and 'at rest', M.Maire
// 31-08-98, new methods SetBining() and PrintInfo()
// 03-08-01, new methods Store/Retrieve PhysicsTable (mma)
// 06-08-01, BuildThePhysicsTable() called from constructor (mma)
// 20-09-01, DoIt: fminimalEnergy = 1*eV (mma)
// 01-10-01, come back to BuildPhysicsTable(const G4ParticleDefinition&)
// 05-08-04, suppress .icc file
// 13-08-04, public ComputeCrossSectionPerAtom() and ComputeMeanFreePath()
// 09-11-04, Remove Store/Retrieve tables (V.Ivantchenko)
// -------------------------------------------------------------------
//
// class description
//
// e+ e- ---> gamma gamma
// inherit from G4VRestDiscreteProcess
//
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
#ifndef G4eplusAnnihilation_h
#define G4eplusAnnihilation_h 1
#include "G4ios.hh"
#include "globals.hh"
#include "Randomize.hh"
#include "G4VRestDiscreteProcess.hh"
#include "G4PhysicsTable.hh"
#include "G4PhysicsLogVector.hh"
#include "G4ElementTable.hh"
#include "G4Gamma.hh"
#include "G4VEmProcess.hh"
#include "G4Positron.hh"
#include "G4Step.hh"
#include "G4VEmModel.hh"
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
class G4eplusAnnihilation : public G4VEmProcess
{
class G4eplusAnnihilation : public G4VRestDiscreteProcess
public:
{
public: // with description
G4eplusAnnihilation(const G4String& processName ="annihil",
G4ProcessType type = fElectromagnetic);
~G4eplusAnnihilation();
G4eplusAnnihilation(const G4String& name = "annihil");
G4bool IsApplicable(const G4ParticleDefinition&);
// true for positron only.
void SetPhysicsTableBining(G4double lowE, G4double highE, G4int nBins);
// Allows to define the binning of the PhysicsTables,
// before to build them.
void BuildPhysicsTable(const G4ParticleDefinition&);
// It builds the total CrossSectionPerAtom table, for e+,
// and for every element contained in the elementTable.
// It builds the MeanFreePath table, for e+,
// and for every material contained in the materialTable.
virtual ~G4eplusAnnihilation();
G4bool StorePhysicsTable(const G4ParticleDefinition* ,
const G4String& directory, G4bool);
// store CrossSection and MeanFreePath tables into an external file
// specified by 'directory' (must exist before invokation)
virtual G4bool IsApplicable(const G4ParticleDefinition& p);
//G4bool RetrievePhysicsTable(const G4ParticleDefinition* ,
// const G4String& directory, G4bool);
// retrieve CrossSection and MeanFreePath tables from an external file
// specified by 'directory'
void PrintInfoDefinition();
// Print few lines of informations about the process: validity range,
// origine ..etc..
// Invoked by BuildThePhysicsTable().
G4double GetMeanFreePath(const G4Track& aTrack,
G4double previousStepSize,
G4ForceCondition* condition);
// It returns the MeanFreePath of the process for the current track :
// (energy, material)
// The previousStepSize and G4ForceCondition* are not used.
// This function overloads a virtual function of the base class.
// It is invoked by the ProcessManager of the Particle.
G4double GetCrossSectionPerAtom(G4DynamicParticle* aDynamicPositron,
G4Element* anElement);
// It returns the total CrossSectionPerAtom of the process,
// for the current DynamicPositron (energy), in anElement.
virtual G4VParticleChange* AtRestDoIt(
const G4Track& track,
const G4Step& stepData);
G4VParticleChange* PostStepDoIt(const G4Track& aTrack,
const G4Step& aStep);
// It computes the final state of the process (at end of step),
// returned as a ParticleChange object.
// This function overloads a virtual function of the base class.
// It is invoked by the ProcessManager of the Particle.
G4double AtRestGetPhysicalInteractionLength(
const G4Track& track,
G4ForceCondition* condition
);
G4double GetMeanLifeTime(const G4Track& aTrack,
G4ForceCondition* condition);
// It is invoked by the ProcessManager of the Positron if this
// e+ has a kinetic energy null. Then it return 0 to force the
// call of AtRestDoIt.
// This function overloads a virtual function of the base class.
G4VParticleChange* AtRestDoIt(const G4Track& aTrack,
const G4Step& aStep);
// It computes the final state of the process:
// e+ (at rest) e- (at rest) ---> gamma gamma,
// returned as a ParticleChange object.
// This function overloads a virtual function of the base class.
// It is invoked by the ProcessManager of the Particle.
// Print out of the class parameters
virtual void PrintInfo();
virtual
G4double ComputeCrossSectionPerAtom(G4double PositKinEnergy,
G4double AtomicNumber);
protected:
G4double ComputeMeanFreePath(G4double PositKinEnergy,
G4Material* aMaterial);
virtual void InitialiseProcess(const G4ParticleDefinition*);
private:
std::vector<G4DynamicParticle*>* SecondariesPostStep(
G4VEmModel*,
const G4MaterialCutsCouple*,
const G4DynamicParticle*);
private:
// hide assignment operator
G4eplusAnnihilation & operator=(const G4eplusAnnihilation &right);
G4eplusAnnihilation(const G4eplusAnnihilation&);
// hide assignment operator as private
G4eplusAnnihilation& operator=(const G4eplusAnnihilation& right);
G4eplusAnnihilation(const G4eplusAnnihilation& );
private:
G4bool isInitialised;
G4PhysicsTable* theCrossSectionTable;
G4PhysicsTable* theMeanFreePathTable;
G4double LowestEnergyLimit; // low energy limit of the tables
G4double HighestEnergyLimit; // high energy limit of the tables
G4int NumbBinTable; // number of bins in the tables
G4double fminimalEnergy; // minimalEnergy of produced particles
};
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline G4bool G4eplusAnnihilation::IsApplicable(const G4ParticleDefinition& p)
{
return (&p == G4Positron::Positron());
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline G4double G4eplusAnnihilation::AtRestGetPhysicalInteractionLength(
const G4Track&, G4ForceCondition* condition)
{
*condition = NotForced;
return 0.0;
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
inline std::vector<G4DynamicParticle*>* G4eplusAnnihilation::SecondariesPostStep(
G4VEmModel* model,
const G4MaterialCutsCouple* couple,
const G4DynamicParticle* dp)
{
fParticleChange.ProposeTrackStatus(fStopAndKill);
return model->SampleSecondaries(couple, dp);
}
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
#endif