Gabriele Cosmo
167 lines
5.4 KiB
C++
167 lines
5.4 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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// $Id: G4MscModel.hh,v 1.7 2005/10/04 08:42:51 vnivanch Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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//
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// -------------------------------------------------------------------
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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: G4MscModel
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//
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// Author: Laszlo Urban
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//
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// Creation date: 01.03.2001
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//
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// Modifications:
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//
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// 27-03-03 Move model part from G4MultipleScattering (V.Ivanchenko)
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// 27-03-03 Rename (V.Ivanchenko)
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//
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// 05-08-03 angle distribution has been modified (L.Urban)
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// 26-11-03 new data member currentRange (L.Urban)
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// 01-03-04 changes in data members + signature changed in SampleCosineTheta
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// 11-03-04 changes in data members (L.Urban)
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// 23-04-04 changes in data members and in signature of SampleCosineTheta
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// (L.Urban)
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// 17-08-04 name of data member facxsi changed to factail (L.Urban)
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// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
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// 15-04-05 optimize internal interface - add SampleSecondaries method (V.Ivanchenko)
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// 11-08-05 computation of lateral correlation added (L.Urban)
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// 02-10-05 nuclear size correction computation removed, the correction
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// included in the (theoretical) tabulated values (L.Urban)
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//
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// Class Description:
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//
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// Implementation of the model of multiple scattering based on
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// H.W.Lewis Phys Rev 78 (1950) 526 and L.Urban model
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// -------------------------------------------------------------------
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//
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#ifndef G4MscModel_h
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#define G4MscModel_h 1
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "G4VEmModel.hh"
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class G4ParticleChangeForMSC;
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class G4Navigator;
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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class G4MscModel : public G4VEmModel
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{
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public:
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G4MscModel(G4double dtrl,G4double factail, G4bool samplez,
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const G4String& nam = "MscUni");
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~G4MscModel();
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void Initialise(const G4ParticleDefinition*, const G4DataVector&);
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G4double ComputeCrossSectionPerAtom(
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const G4ParticleDefinition* particle,
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G4double KineticEnergy,
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G4double AtomicNumber,
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G4double AtomicWeight=0.,
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G4double cut =0.,
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G4double emax=0.);
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G4double CrossSectionPerVolume(const G4Material*,
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const G4ParticleDefinition*,
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G4double kineticEnergy,
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G4double cutEnergy = 0.0,
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G4double maxEnergy = DBL_MAX);
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std::vector<G4DynamicParticle*>* SampleSecondaries(
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const G4MaterialCutsCouple*,
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const G4DynamicParticle*,
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G4double length,
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G4double safety);
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G4double GeomPathLength(G4PhysicsTable* theLambdaTable,
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const G4MaterialCutsCouple* couple,
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const G4ParticleDefinition* particle,
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G4double& kineticEnergy,
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G4double lambda,
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G4double range,
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G4double truePathLength);
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G4double TrueStepLength(G4double geomStepLength);
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G4double SampleCosineTheta(G4double trueStepLength,G4double KineticEnergy);
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G4double SampleDisplacement();
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G4double LatCorrelation();
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void SetLateralDisplasmentFlag(G4bool val) { latDisplasment = val;};
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private:
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const G4ParticleDefinition* particle;
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G4ParticleChangeForMSC* fParticleChange;
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G4Navigator* navigator;
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G4double mass;
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G4double charge;
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G4double massRate;
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G4double taubig;
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G4double tausmall;
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G4double taulim;
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G4double currentTau;
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G4double dtrl;
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G4double factail ;
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G4double b;
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G4double xsi;
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G4double lambda0;
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G4double lambdaeff;
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G4double tPathLength;
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G4double zPathLength;
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G4double par1,par2,par3 ;
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G4double stepmin ;
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G4double currentKinEnergy;
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G4double currentRange ;
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G4double currentRadLength;
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G4bool samplez;
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G4bool latDisplasment;
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G4bool isInitialized;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#endif
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