Gabriele Cosmo
154 lines
5.4 KiB
C++
154 lines
5.4 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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// $Id: G4ePolarizedIonisation.hh,v 1.3 2007/06/11 13:37:56 vnivanch Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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// -------------------------------------------------------------------
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//
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// GEANT4 Class header file
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//
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//
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// File name: G4ePolarizedIonisation
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//
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// Author: A.Schaelicke on base of Vladimir Ivanchenko code
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//
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// Creation date: 10.11.2005
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//
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// Modifications:
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//
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// 10-11-05, include polarization description (A.Schaelicke)
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// , create asymmetry table and determine interactionlength
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// , update polarized differential cross section
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//
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// 20-08-06, modified interface (A.Schaelicke)
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// 11-06-07, add PostStepGetPhysicalInteractionLength (A.Schalicke)
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//
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// Class Description:
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//
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// polarized version of G4eIonisation
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// ----------------------------------------------------------------------------
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// -------------------------------------------------------------------
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//
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#ifndef G4ePolarizedIonisation_h
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#define G4ePolarizedIonisation_h 1
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#include "G4VEnergyLossProcess.hh"
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#include "G4Electron.hh"
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#include "G4Positron.hh"
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class G4Material;
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class G4ParticleDefinition;
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class G4VEmFluctuationModel;
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class G4PolarizedMollerBhabhaModel;
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class G4ePolarizedIonisation : public G4VEnergyLossProcess
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{
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public:
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G4ePolarizedIonisation(const G4String& name = "pol-eIoni");
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virtual ~G4ePolarizedIonisation();
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G4bool IsApplicable(const G4ParticleDefinition& p);
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// Print out of the class parameters
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virtual void PrintInfo();
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protected:
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virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
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const G4ParticleDefinition*);
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virtual G4double MinPrimaryEnergy(const G4ParticleDefinition*,
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const G4Material*, G4double cut);
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// for polarization
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G4double PostStepGetPhysicalInteractionLength(
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const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition
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);
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G4double GetMeanFreePath(const G4Track& track,
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G4double previousStepSize,
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G4ForceCondition* condition);
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virtual void BuildPhysicsTable(const G4ParticleDefinition&);
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G4double ComputeAsymmetry(G4double energy,
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const G4MaterialCutsCouple* couple,
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const G4ParticleDefinition& particle,
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G4double cut,
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G4double &tasm);
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protected:
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const G4ParticleDefinition* DefineBaseParticle(const G4ParticleDefinition* p);
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private:
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G4ePolarizedIonisation & operator=(const G4ePolarizedIonisation &right);
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G4ePolarizedIonisation(const G4ePolarizedIonisation&);
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G4ParticleDefinition* theElectron;
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G4VEmFluctuationModel* flucModel;
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G4PolarizedMollerBhabhaModel* emModel;
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G4bool isElectron;
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G4bool isInitialised;
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// for polarization:
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G4ThreeVector theTargetPolarization;
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size_t numBinAsymmetryTable;
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G4PhysicsTable* theAsymmetryTable; // table for cross section assym.
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G4PhysicsTable* theTransverseAsymmetryTable; // table for transverse cross section assym.
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4double G4ePolarizedIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
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const G4Material*,
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G4double cut)
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{
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G4double x = cut;
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if(isElectron) x += cut;
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return x;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
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inline G4bool G4ePolarizedIonisation::IsApplicable(const G4ParticleDefinition& p)
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{
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return (&p == G4Electron::Electron() || &p == G4Positron::Positron());
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#endif
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