Gabriele Cosmo
144 lines
5.3 KiB
C++
144 lines
5.3 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: G4MultipleScattering.hh,v 1.17 2003/08/08 11:31:24 vnivanch Exp $
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// GEANT4 tag $Name: geant4-06-00 $
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//
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//
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//------------- G4MultipleScattering physics process --------------------------
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// by Laszlo Urban, March 2001
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//
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// 07-08-01 new methods Store/Retrieve PhysicsTable
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// 23-08-01 new angle and z distribution,energy dependence reduced,
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// Store,Retrieve methods commented out temporarily, L.Urban
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// 11-09-01 G4MultipleScatteringx put as default: G4MultipleScattering
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// Store,Retrieve methods reactived (mma)
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// 13-09-01 Unused TrueToGeomTransformation method deleted,
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// class description (L.Urban)
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// 19-09-01 come back to previous process name msc
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// 17-04-02 NEW angle distribution + boundary algorithm modified, L.Urban
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// 22-04-02 boundary algorithm modified -> important improvement in timing !!!!
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// (L.Urban)
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// 24-05-02 changes in data members, L.Urban
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// 30-10-02 changes in data members, L.Urban
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// 20-01-03 Migrade to cut per region (V.Ivanchenko)
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// 05-02-03 changes in data members, L.Urban
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// 28-03-03 Move to model design (V.Ivanchenko)
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// 18-04-03 Change name (V.Ivanchenko)
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// 16-06-03: ShortLived are not applicable any more (V.Ivanchenko)
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//
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//------------------------------------------------------------------------------
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//
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// $Id: G4MultipleScattering.hh,v 1.17 2003/08/08 11:31:24 vnivanch Exp $
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// GEANT4 tag $Name: geant4-06-00 $
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// class description
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//
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// The class simulates the multiple scattering for any kind
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// of charged particle.
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//
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// class description - end
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#ifndef G4MultipleScattering_h
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#define G4MultipleScattering_h 1
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#include "G4VMultipleScattering.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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class G4MultipleScattering : public G4VMultipleScattering
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{
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public: // with description
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G4MultipleScattering(const G4String& processName="msc");
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~G4MultipleScattering();
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G4bool IsApplicable (const G4ParticleDefinition& p)
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{return (p.GetPDGCharge() != 0.0 && !p.IsShortLived());};
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// returns true for charged particles, false otherwise
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void InitialiseProcess(const G4ParticleDefinition&);
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// This function initialise models
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G4double TruePathLengthLimit(const G4Track& track,
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G4double& lambda,
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G4double currentMinimalStep);
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void PrintInfoDefinition();
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// Print few lines of informations about the process: validity range,
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void Setsamplez(G4bool value) {samplez = value;};
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// geom. step length distribution should be sampled or not
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void Setdtrl(G4double value) {dtrl = value;};
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// to reduce the energy/step dependence
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void Setfacxsi(G4double value) {facxsi = value;}
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void SetFacrange(G4double val) {facrange=val;
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nsmallstep = G4int(log((cf+facrange-1.)/facrange)/log(cf))+1;}
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// Steplimit after boundary crossing = facrange*range
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// estimated nb of steps at boundary nsmallstep = 1/facrange
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void SetNuclCorrPar(G4double val) {NuclCorrPar = val;};
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void SetFactPar(G4double val) {FactPar = val;};
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// corrs to transport cross section for high energy
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private:
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// hide assignment operator as private
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G4MultipleScattering & operator = (const G4MultipleScattering &right);
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G4MultipleScattering ( const G4MultipleScattering &);
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private: // data members
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G4double lowKineticEnergy;
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G4double highKineticEnergy;
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G4int totBins;
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G4double facrange;
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G4double tlimit;
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G4double tlimitmin;
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G4double dtrl;
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G4double NuclCorrPar;
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G4double FactPar;
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G4double facxsi;
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G4double cf;
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G4int stepnolastmsc;
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G4int nsmallstep;
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G4bool samplez;
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G4bool boundary;
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};
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#endif
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