Gabriele Cosmo
182 lines
7.4 KiB
C++
182 lines
7.4 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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/////////////////////////////////////////////////////////////////////////////////
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// Class Name: G4AdjointPrimaryGeneratorAction
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// Author: L. Desorgher
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// Organisation: SpaceIT GmbH
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// Contract: ESA contract 21435/08/NL/AT
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// Customer: ESA/ESTEC
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/////////////////////////////////////////////////////////////////////////////////
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//
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// CHANGE HISTORY
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// --------------
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// ChangeHistory:
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// 10-01-2007 creation by L. Desorgher
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// 1-11-2009 Splitting of G4AdjointPrimaryGeneratorAction in two classes
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// G4AdjointPrimaryGeneratorAction and G4AdjointPrimaryGenerator
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// L.Desorgher
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//
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//
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//-------------------------------------------------------------
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// Documentation:
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// This class represents the PrimaryGeneratorAction that is used during the
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//entire
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// adjoint simulation. It uses the class G4AdjointPrimaryGenerator to
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// generate randomly adjoint primary particles on a user selected adjoint
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// source (External surface of a volume or Sphere). The spectrum of the
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// primary adjoint particles is set as 1/E with user defined max and min
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// energy. The weight of the primary is set according to ReverseMC theory as
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// w=log(Emax/Emin)*E*adjoint_source_area*pi/n, with E the energy of the
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// particle, n the number of adjoint primary particles of same type that will be
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// generated during the simulation. Different types of adjoint particles are
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// generated event after event in order to cover all the type of primaries
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// and secondaries needed for the simulation. For example if reverse e-
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// ionisation, brem, photo
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// electric effect, and compton are considered both adjoint gamma and adjoint
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// e- will be considered alternatively as adjoint primary. The user can
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// decide to consider/neglect some type of particle by using the macro commands
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// /adjoint/ConsiderAsPrimary and
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/// adjoint/NeglectAsPrimary. If an adjoint primary or its secondary has
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/// reached the
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// external surface, in the next event a fwd primary particle equivalent to
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// the last generated adjoint primary is generated with the same position,
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// energy but opposite direction and the forward tracking phase starts.
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//
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//
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//
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#ifndef G4AdjointPrimaryGeneratorAction_h
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#define G4AdjointPrimaryGeneratorAction_h 1
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#include "G4ThreeVector.hh"
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#include "G4VUserPrimaryGeneratorAction.hh"
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#include "globals.hh"
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#include <iterator>
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#include <map>
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#include <vector>
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class G4AdjointPosOnPhysVolGenerator;
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class G4ParticleGun;
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class G4Event;
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class G4AdjointPrimaryGenerator;
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class G4ParticleDefinition;
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/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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class G4AdjointPrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
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{
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public: // constructor, destructor
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G4AdjointPrimaryGeneratorAction();
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~G4AdjointPrimaryGeneratorAction();
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public: // public methods
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void GeneratePrimaries(G4Event*);
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void SetRndmFlag(const G4String& val) { rndmFlag = val; }
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void SetEmin(G4double val);
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void SetEmax(G4double val);
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void SetEminIon(G4double val);
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void SetEmaxIon(G4double val);
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void SetSphericalAdjointPrimarySource(G4double radius, G4ThreeVector pos);
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void SetAdjointPrimarySourceOnAnExtSurfaceOfAVolume(
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const G4String& volume_name);
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void ConsiderParticleAsPrimary(const G4String& particle_name);
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void NeglectParticleAsPrimary(const G4String& particle_name);
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void SetPrimaryIon(G4ParticleDefinition* adjointIon,
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G4ParticleDefinition* fwdIon);
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void UpdateListOfPrimaryParticles();
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inline size_t GetNbOfAdjointPrimaryTypes()
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{
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return ListOfPrimaryAdjParticles.size();
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}
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inline std::vector<G4ParticleDefinition*>* GetListOfPrimaryFwdParticles()
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{
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return &ListOfPrimaryFwdParticles;
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}
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inline const G4String& GetPrimaryIonName() { return ion_name; }
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inline void SetNbPrimaryFwdGammasPerEvent(G4int nb)
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{
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nb_fwd_gammas_per_event = nb;
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}
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inline void SetNbAdjointPrimaryGammasPerEvent(G4int nb)
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{
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nb_adj_primary_gammas_per_event = nb;
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}
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inline void SetNbAdjointPrimaryElectronsPerEvent(G4int nb)
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{
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nb_adj_primary_electrons_per_event = nb;
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}
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inline G4ParticleDefinition* GetLastGeneratedFwdPrimaryParticle()
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{
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return ListOfPrimaryFwdParticles[index_particle];
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}
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private: // private methods
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G4double ComputeEnergyDistWeight(G4double energy, G4double E1, G4double E2);
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private: // attributes
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G4String rndmFlag; // flag for a rndm impact point
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// The generator of primary vertex except for weight
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G4AdjointPrimaryGenerator* theAdjointPrimaryGenerator;
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// Emin and Emax energies of the adjoint source
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//---------------------------------------------
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G4double Emin;
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G4double Emax;
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G4double EminIon;
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G4double EmaxIon;
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// List of type of primary adjoint and forward particle used in the
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// simulation
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//---------------------------------------------------------------------------
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std::vector<G4ParticleDefinition*> ListOfPrimaryFwdParticles;
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std::vector<G4ParticleDefinition*> ListOfPrimaryAdjParticles;
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std::map<G4String, G4bool>
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PrimariesConsideredInAdjointSim; // if true considered if
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// false not considered
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size_t index_particle;
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G4ThreeVector pos, direction, p;
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G4String type_of_adjoint_source; // Spherical ExtSurfaceOfAVolume
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G4double radius_spherical_source;
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G4ThreeVector center_spherical_source;
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G4int nb_fwd_gammas_per_event;
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G4int nb_adj_primary_gammas_per_event;
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G4int nb_adj_primary_electrons_per_event;
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// For simulation with ions
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//--------------------------
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G4ParticleDefinition* fwd_ion;
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G4ParticleDefinition* adj_ion;
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G4String ion_name;
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// disable copy constructor and assignement operator
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G4AdjointPrimaryGeneratorAction(const G4AdjointPrimaryGeneratorAction&);
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G4AdjointPrimaryGeneratorAction& operator=(
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const G4AdjointPrimaryGeneratorAction&);
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};
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#endif
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