Gabriele Cosmo
257 lines
7.0 KiB
C++
257 lines
7.0 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
// $Id: G4MuMscModel.hh,v 1.4 2007/11/09 19:48:09 vnivanch Exp $
|
|
// GEANT4 tag $Name: geant4-09-01 $
|
|
//
|
|
// -------------------------------------------------------------------
|
|
//
|
|
//
|
|
// GEANT4 Class header file
|
|
//
|
|
//
|
|
// File name: G4MuMscModel
|
|
//
|
|
// Author: V.Ivanchenko on base of L.Urban model
|
|
//
|
|
// Creation date: 25.10.2007
|
|
//
|
|
// Modifications:
|
|
//
|
|
//
|
|
// Class Description:
|
|
//
|
|
// Implementation of the model of multiple scattering based on
|
|
// H.W.Lewis Phys Rev 78 (1950) 526 and L.Urban model
|
|
|
|
// -------------------------------------------------------------------
|
|
//
|
|
|
|
#ifndef G4MuMscModel_h
|
|
#define G4MuMscModel_h 1
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
#include "G4eCoulombScatteringModel.hh"
|
|
#include "G4PhysicsTable.hh"
|
|
#include "G4MscStepLimitType.hh"
|
|
#include "G4MaterialCutsCouple.hh"
|
|
|
|
class G4LossTableManager;
|
|
class G4ParticleChangeForMSC;
|
|
class G4SafetyHelper;
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
class G4MuMscModel : public G4eCoulombScatteringModel
|
|
{
|
|
|
|
public:
|
|
|
|
G4MuMscModel(G4double frange = 0.2,
|
|
G4double thetaMax = 0.04,
|
|
G4double tMax = TeV*TeV,
|
|
const G4String& nam = "MuMscUni");
|
|
|
|
virtual ~G4MuMscModel();
|
|
|
|
void Initialise(const G4ParticleDefinition*, const G4DataVector&);
|
|
|
|
G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
|
|
G4double KineticEnergy,
|
|
G4double AtomicNumber,
|
|
G4double AtomicWeight=0.,
|
|
G4double cut = DBL_MAX,
|
|
G4double emax= DBL_MAX);
|
|
|
|
void SampleScattering(const G4DynamicParticle*, G4double safety);
|
|
|
|
void SampleSecondaries(std::vector<G4DynamicParticle*>*,
|
|
const G4MaterialCutsCouple*,
|
|
const G4DynamicParticle*,
|
|
G4double,
|
|
G4double);
|
|
|
|
G4double ComputeTruePathLengthLimit(const G4Track& track,
|
|
G4PhysicsTable* theLambdaTable,
|
|
G4double currentMinimalStep);
|
|
|
|
G4double ComputeGeomPathLength(G4double truePathLength);
|
|
|
|
G4double ComputeTrueStepLength(G4double geomStepLength);
|
|
|
|
inline void SetStepLimitType(G4MscStepLimitType);
|
|
|
|
inline void SetLateralDisplasmentFlag(G4bool val);
|
|
|
|
inline G4double GetLambda(G4double kinEnergy);
|
|
|
|
inline G4double GetLambda2(G4double kinEnergy);
|
|
|
|
// inline void SetThetaLimit(G4double);
|
|
|
|
inline void SetRangeFactor(G4double);
|
|
|
|
private:
|
|
|
|
void BuildTables();
|
|
|
|
G4double ComputeLambda2(G4double kinEnergy, G4double cut);
|
|
|
|
inline void DefineMaterial(const G4MaterialCutsCouple*);
|
|
|
|
// hide assignment operator
|
|
G4MuMscModel & operator=(const G4MuMscModel &right);
|
|
G4MuMscModel(const G4MuMscModel&);
|
|
|
|
G4ParticleChangeForMSC* fParticleChange;
|
|
|
|
G4SafetyHelper* safetyHelper;
|
|
G4PhysicsTable* theLambdaTable;
|
|
G4PhysicsTable* theLambda2Table;
|
|
G4LossTableManager* theManager;
|
|
const G4DataVector* currentCuts;
|
|
|
|
G4double dtrl;
|
|
G4double facrange;
|
|
G4double thetaLimit;
|
|
G4double numlimit;
|
|
G4double tlimitminfix;
|
|
G4double invsqrt12;
|
|
G4double lowBinEnergy;
|
|
G4double highBinEnergy;
|
|
|
|
// cash
|
|
G4double preKinEnergy;
|
|
G4double xSection;
|
|
G4double ecut;
|
|
G4double lambda0;
|
|
G4double tPathLength;
|
|
G4double zPathLength;
|
|
G4double lambdaeff;
|
|
G4double currentRange;
|
|
G4double par1;
|
|
G4double par2;
|
|
G4double par3;
|
|
|
|
G4int currentMaterialIndex;
|
|
|
|
G4int nbins;
|
|
G4int nwarnings;
|
|
G4int nwarnlimit;
|
|
|
|
const G4MaterialCutsCouple* currentCouple;
|
|
|
|
G4MscStepLimitType steppingAlgorithm;
|
|
|
|
G4bool samplez;
|
|
G4bool latDisplasment;
|
|
G4bool isInitialized;
|
|
G4bool buildTables;
|
|
G4bool newrun;
|
|
G4bool inside;
|
|
};
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
void G4MuMscModel::SetLateralDisplasmentFlag(G4bool val)
|
|
{
|
|
latDisplasment = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
/*
|
|
inline
|
|
void G4MuMscModel::SetThetaLimit(G4double val)
|
|
{
|
|
thetaLimit = val;
|
|
}
|
|
*/
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
void G4MuMscModel::SetRangeFactor(G4double val)
|
|
{
|
|
facrange = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
void G4MuMscModel::SetStepLimitType(G4MscStepLimitType val)
|
|
{
|
|
steppingAlgorithm = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
void G4MuMscModel::DefineMaterial(const G4MaterialCutsCouple* cup)
|
|
{
|
|
if(cup != currentCouple) {
|
|
currentCouple = cup;
|
|
currentMaterialIndex = currentCouple->GetIndex();
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
G4double G4MuMscModel::GetLambda(G4double e)
|
|
{
|
|
G4double x;
|
|
if(theLambdaTable) {
|
|
G4bool b;
|
|
x = ((*theLambdaTable)[currentMaterialIndex])->GetValue(e, b);
|
|
} else {
|
|
x = CrossSection(currentCouple,particle,e);
|
|
}
|
|
if(x > DBL_MIN) x = 1./x;
|
|
else x = DBL_MAX;
|
|
return x;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
inline
|
|
G4double G4MuMscModel::GetLambda2(G4double e)
|
|
{
|
|
G4double x;
|
|
if(theLambda2Table) {
|
|
G4bool b;
|
|
x = ((*theLambda2Table)[currentMaterialIndex])->GetValue(e, b);
|
|
} else {
|
|
x = ComputeLambda2(e, (*currentCuts)[currentMaterialIndex]);
|
|
}
|
|
return x;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
#endif
|
|
|