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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /////////////////////////////////////////////////////////////////////////////////
0027 //  Class:    G4IonIonisationModel
0028 //  Author:         L. Desorgher
0029 //  Organisation:   SpaceIT GmbH
0030 //
0031 //  Adjoint EM model for discrete reverse ion ionisation
0032 /////////////////////////////////////////////////////////////////////////////////
0033 
0034 #ifndef G4AdjointIonIonisationModel_h
0035 #define G4AdjointIonIonisationModel_h 1
0036 
0037 #include "globals.hh"
0038 #include "G4VEmAdjointModel.hh"
0039 
0040 class G4Track;
0041 class G4ParticleChange;
0042 class G4ParticleDefinition;
0043 class G4VEmModel;
0044 class G4VParticleChange;
0045 
0046 class G4AdjointIonIonisationModel : public G4VEmAdjointModel
0047 {
0048  public:
0049   G4AdjointIonIonisationModel();
0050 
0051   ~G4AdjointIonIonisationModel() override;
0052 
0053   void SampleSecondaries(const G4Track& aTrack, G4bool isScatProjToProj,
0054                          G4ParticleChange* fParticleChange) override;
0055 
0056   G4double DiffCrossSectionPerAtomPrimToSecond(
0057     G4double kinEnergyProj,  // kin energy of primary before interaction
0058     G4double kinEnergyProd,  // kinetic energy of the secondary particle
0059     G4double Z, G4double A = 0.) override;
0060 
0061   void CorrectPostStepWeight(G4ParticleChange* fParticleChange,
0062                              G4double old_weight, G4double adjointPrimKinEnergy,
0063                              G4double projectileKinEnergy,
0064                              G4bool isScatProjToProj) override;
0065 
0066   G4double GetSecondAdjEnergyMaxForScatProjToProj(
0067     G4double primAdjEnergy) override;
0068 
0069   G4double GetSecondAdjEnergyMinForScatProjToProj(G4double primAdjEnergy,
0070                                                   G4double tcut = 0.) override;
0071 
0072   G4double GetSecondAdjEnergyMaxForProdToProj(G4double primAdjEnergy) override;
0073 
0074   G4double GetSecondAdjEnergyMinForProdToProj(G4double primAdjEnergy) override;
0075 
0076   inline void SetUseOnlyBragg(G4bool aBool) { fUseOnlyBragg = aBool; }
0077 
0078   void SetIon(G4ParticleDefinition* adj_ion, G4ParticleDefinition* fwd_ion);
0079 
0080   G4AdjointIonIonisationModel(G4AdjointIonIonisationModel&) = delete;
0081   G4AdjointIonIonisationModel& operator=(
0082     const G4AdjointIonIonisationModel& right) = delete;
0083 
0084  private:
0085   void DefineProjectileProperty();
0086 
0087   G4VEmModel* fBraggIonDirectEMModel;
0088   G4VEmModel* fBetheBlochDirectEMModel;
0089 
0090   // projectile properties
0091   G4double fMass           = 0.;
0092   G4double fSpin           = 0.;
0093   G4double fMagMoment2     = 0.;
0094   G4double fChargeSquare   = 0.;
0095   G4double fMassRatio      = 0.;
0096   G4double fRatio          = 0.;
0097   G4double fOnePlusRatio2  = 0.;
0098   G4double fOneMinusRatio2 = 0.;
0099   G4double fFormFact       = 0.;
0100 
0101   G4bool fUseOnlyBragg = false;
0102 };
0103 
0104 #endif