Gabriele Cosmo
531 lines
17 KiB
C++
531 lines
17 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: G4VMultipleScattering.hh,v 1.63 2010-03-10 18:29:51 vnivanch Exp $
|
|
// GEANT4 tag $Name: not supported by cvs2svn $
|
|
//
|
|
// -------------------------------------------------------------------
|
|
//
|
|
// GEANT4 Class header file
|
|
//
|
|
//
|
|
// File name: G4VMultipleScattering
|
|
//
|
|
// Author: Vladimir Ivanchenko on base of Laszlo Urban code
|
|
//
|
|
// Creation date: 12.03.2002
|
|
//
|
|
// Modifications:
|
|
//
|
|
// 16-07-03 Update GetRange interface (V.Ivanchenko)
|
|
//
|
|
//
|
|
// Class Description:
|
|
//
|
|
// It is the generic process of multiple scattering it includes common
|
|
// part of calculations for all charged particles
|
|
//
|
|
// 26-11-03 bugfix in AlongStepDoIt (L.Urban)
|
|
// 25-05-04 add protection against case when range is less than steplimit (VI)
|
|
// 30-06-04 make destructor virtual (V.Ivanchenko)
|
|
// 27-08-04 Add InitialiseForRun method (V.Ivanchneko)
|
|
// 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko)
|
|
// 15-04-05 optimize internal interfaces (V.Ivanchenko)
|
|
// 15-04-05 remove boundary flag (V.Ivanchenko)
|
|
// 07-10-05 error in a protection in GetContinuousStepLimit corrected (L.Urban)
|
|
// 27-10-05 introduce virtual function MscStepLimitation() (V.Ivanchenko)
|
|
// 26-01-06 Rename GetRange -> GetRangeFromRestricteDEDX (V.Ivanchenko)
|
|
// 17-02-06 Save table of transport cross sections not mfp (V.Ivanchenko)
|
|
// 07-03-06 Move step limit calculation to model (V.Ivanchenko)
|
|
// 13-05-06 Add method to access model by index (V.Ivanchenko)
|
|
// 12-02-07 Add get/set skin (V.Ivanchenko)
|
|
// 27-10-07 Virtual functions moved to source (V.Ivanchenko)
|
|
// 15-07-08 Reorder class members for further multi-thread development (VI)
|
|
// 07-04-09 Moved msc methods from G4VEmModel to G4VMscModel (VI)
|
|
//
|
|
|
|
// -------------------------------------------------------------------
|
|
//
|
|
|
|
#ifndef G4VMultipleScattering_h
|
|
#define G4VMultipleScattering_h 1
|
|
|
|
#include "G4VContinuousDiscreteProcess.hh"
|
|
#include "globals.hh"
|
|
#include "G4Material.hh"
|
|
#include "G4MaterialCutsCouple.hh"
|
|
#include "G4ParticleChangeForMSC.hh"
|
|
#include "G4Track.hh"
|
|
#include "G4Step.hh"
|
|
#include "G4EmModelManager.hh"
|
|
#include "G4VMscModel.hh"
|
|
#include "G4MscStepLimitType.hh"
|
|
|
|
class G4ParticleDefinition;
|
|
class G4DataVector;
|
|
class G4PhysicsTable;
|
|
class G4PhysicsVector;
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
class G4VMultipleScattering : public G4VContinuousDiscreteProcess
|
|
{
|
|
public:
|
|
|
|
G4VMultipleScattering(const G4String& name = "msc",
|
|
G4ProcessType type = fElectromagnetic);
|
|
|
|
virtual ~G4VMultipleScattering();
|
|
|
|
//------------------------------------------------------------------------
|
|
// Virtual methods to be implemented for the concrete model
|
|
//------------------------------------------------------------------------
|
|
|
|
virtual G4bool IsApplicable(const G4ParticleDefinition& p) = 0;
|
|
|
|
virtual void PrintInfo() = 0;
|
|
|
|
protected:
|
|
|
|
virtual void InitialiseProcess(const G4ParticleDefinition*) = 0;
|
|
|
|
public:
|
|
|
|
//------------------------------------------------------------------------
|
|
// Generic methods common to all ContinuousDiscrete processes
|
|
//------------------------------------------------------------------------
|
|
|
|
// Initialise for build of tables
|
|
void PreparePhysicsTable(const G4ParticleDefinition&);
|
|
|
|
// Build physics table during initialisation
|
|
void BuildPhysicsTable(const G4ParticleDefinition&);
|
|
|
|
// Print out of generic class parameters
|
|
void PrintInfoDefinition();
|
|
|
|
// Store PhysicsTable in a file.
|
|
// Return false in case of failure at I/O
|
|
G4bool StorePhysicsTable(const G4ParticleDefinition*,
|
|
const G4String& directory,
|
|
G4bool ascii = false);
|
|
|
|
// Retrieve Physics from a file.
|
|
// (return true if the Physics Table can be build by using file)
|
|
// (return false if the process has no functionality or in case of failure)
|
|
// File name should is constructed as processName+particleName and the
|
|
// should be placed under the directory specifed by the argument.
|
|
G4bool RetrievePhysicsTable(const G4ParticleDefinition*,
|
|
const G4String& directory,
|
|
G4bool ascii);
|
|
|
|
// The function overloads the corresponding function of the base
|
|
// class.It limits the step near to boundaries only
|
|
// and invokes the method GetMscContinuousStepLimit at every step.
|
|
G4double AlongStepGetPhysicalInteractionLength(
|
|
const G4Track&,
|
|
G4double previousStepSize,
|
|
G4double currentMinimalStep,
|
|
G4double& currentSafety,
|
|
G4GPILSelection* selection);
|
|
|
|
// The function overloads the corresponding function of the base
|
|
// class.
|
|
G4double PostStepGetPhysicalInteractionLength(
|
|
const G4Track&,
|
|
G4double previousStepSize,
|
|
G4ForceCondition* condition);
|
|
|
|
// Along step actions
|
|
G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
|
|
|
|
// Post step actions
|
|
G4VParticleChange* PostStepDoIt(const G4Track&, const G4Step&);
|
|
|
|
// This method does not used for tracking, it is intended only for tests
|
|
G4double ContinuousStepLimit(const G4Track& track,
|
|
G4double previousStepSize,
|
|
G4double currentMinimalStep,
|
|
G4double& currentSafety);
|
|
|
|
//------------------------------------------------------------------------
|
|
// Specific methods to build and access Physics Tables
|
|
//------------------------------------------------------------------------
|
|
|
|
// Build empty Physics Vector
|
|
G4PhysicsVector* PhysicsVector(const G4MaterialCutsCouple*);
|
|
|
|
inline void SetBinning(G4int nbins);
|
|
inline G4int Binning() const;
|
|
|
|
inline void SetMinKinEnergy(G4double e);
|
|
inline G4double MinKinEnergy() const;
|
|
|
|
inline void SetMaxKinEnergy(G4double e);
|
|
inline G4double MaxKinEnergy() const;
|
|
|
|
inline void SetBuildLambdaTable(G4bool val);
|
|
|
|
inline G4PhysicsTable* LambdaTable() const;
|
|
|
|
// access particle type
|
|
inline const G4ParticleDefinition* Particle() const;
|
|
|
|
//------------------------------------------------------------------------
|
|
// Specific methods to set, access, modify models
|
|
//------------------------------------------------------------------------
|
|
|
|
protected:
|
|
// Select model in run time
|
|
inline G4VEmModel* SelectModel(G4double kinEnergy);
|
|
|
|
public:
|
|
// Select model in run time
|
|
inline G4VEmModel* SelectModelForMaterial(G4double kinEnergy,
|
|
size_t& idxRegion) const;
|
|
|
|
// Add model for region, smaller value of order defines which
|
|
// model will be selected for a given energy interval
|
|
void AddEmModel(G4int order, G4VEmModel*, const G4Region* region = 0);
|
|
|
|
// Assign a model to a process
|
|
void SetModel(G4VMscModel*, G4int index = 1);
|
|
|
|
// return the assigned model
|
|
G4VMscModel* Model(G4int index = 1);
|
|
|
|
// Access to models by index
|
|
G4VEmModel* GetModelByIndex(G4int idx = 0, G4bool ver = false) const;
|
|
|
|
//------------------------------------------------------------------------
|
|
// Get/Set parameters for simulation of multiple scattering
|
|
//------------------------------------------------------------------------
|
|
|
|
inline G4bool LateralDisplasmentFlag() const;
|
|
inline void SetLateralDisplasmentFlag(G4bool val);
|
|
|
|
inline G4double Skin() const;
|
|
inline void SetSkin(G4double val);
|
|
|
|
inline G4double RangeFactor() const;
|
|
inline void SetRangeFactor(G4double val);
|
|
|
|
inline G4double GeomFactor() const;
|
|
inline void SetGeomFactor(G4double val);
|
|
|
|
inline G4double PolarAngleLimit() const;
|
|
inline void SetPolarAngleLimit(G4double val);
|
|
|
|
inline G4MscStepLimitType StepLimitType() const;
|
|
inline void SetStepLimitType(G4MscStepLimitType val);
|
|
|
|
//------------------------------------------------------------------------
|
|
// Run time methods
|
|
//------------------------------------------------------------------------
|
|
|
|
protected:
|
|
|
|
// This method is not used for tracking, it returns mean free path value
|
|
G4double GetMeanFreePath(const G4Track& track,
|
|
G4double,
|
|
G4ForceCondition* condition);
|
|
|
|
// This method is not used for tracking, it returns step limit
|
|
G4double GetContinuousStepLimit(const G4Track& track,
|
|
G4double previousStepSize,
|
|
G4double currentMinimalStep,
|
|
G4double& currentSafety);
|
|
|
|
// This method returns inversed transport cross section
|
|
inline G4double GetLambda(const G4ParticleDefinition* p,
|
|
G4double& kineticEnergy);
|
|
|
|
// defines current material in run time
|
|
inline void DefineMaterial(const G4MaterialCutsCouple* couple);
|
|
|
|
inline const G4MaterialCutsCouple* CurrentMaterialCutsCouple() const;
|
|
|
|
private:
|
|
|
|
// hide assignment operator
|
|
G4VMultipleScattering(G4VMultipleScattering &);
|
|
G4VMultipleScattering & operator=(const G4VMultipleScattering &right);
|
|
|
|
// ======== Parameters of the class fixed at construction =========
|
|
|
|
G4EmModelManager* modelManager;
|
|
G4bool buildLambdaTable;
|
|
|
|
// ======== Parameters of the class fixed at initialisation =======
|
|
|
|
std::vector<G4VMscModel*> mscModels;
|
|
|
|
G4PhysicsTable* theLambdaTable;
|
|
const G4ParticleDefinition* firstParticle;
|
|
|
|
const std::vector<G4double>* theDensityFactor;
|
|
const std::vector<G4int>* theDensityIdx;
|
|
|
|
G4MscStepLimitType stepLimit;
|
|
|
|
G4double minKinEnergy;
|
|
G4double maxKinEnergy;
|
|
G4double skin;
|
|
G4double facrange;
|
|
G4double facgeom;
|
|
G4double polarAngleLimit;
|
|
|
|
G4int nBins;
|
|
|
|
G4bool latDisplasment;
|
|
G4bool isIon;
|
|
|
|
// ======== Cashed values - may be state dependent ================
|
|
|
|
protected:
|
|
|
|
G4GPILSelection valueGPILSelectionMSC;
|
|
G4ParticleChangeForMSC fParticleChange;
|
|
|
|
private:
|
|
|
|
G4VMscModel* currentModel;
|
|
|
|
// cache
|
|
const G4ParticleDefinition* currentParticle;
|
|
const G4MaterialCutsCouple* currentCouple;
|
|
size_t currentCoupleIndex;
|
|
size_t basedCoupleIndex;
|
|
|
|
};
|
|
|
|
// ======== Run time inline methods ================
|
|
|
|
inline const G4MaterialCutsCouple*
|
|
G4VMultipleScattering::CurrentMaterialCutsCouple() const
|
|
{
|
|
return currentCouple;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline
|
|
void G4VMultipleScattering::DefineMaterial(const G4MaterialCutsCouple* couple)
|
|
{
|
|
if(couple != currentCouple) {
|
|
currentCouple = couple;
|
|
currentCoupleIndex = couple->GetIndex();
|
|
basedCoupleIndex = (*theDensityIdx)[currentCoupleIndex];
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline
|
|
G4double G4VMultipleScattering::GetLambda(const G4ParticleDefinition* p,
|
|
G4double& e)
|
|
{
|
|
G4double x;
|
|
if(theLambdaTable) {
|
|
x = (*theDensityFactor)[currentCoupleIndex]*
|
|
((*theLambdaTable)[basedCoupleIndex])->Value(e);
|
|
} else {
|
|
x = currentModel->CrossSection(currentCouple,p,e);
|
|
}
|
|
if(x > 0.0) { x = 1./x; }
|
|
else { x = DBL_MAX; }
|
|
return x;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4VEmModel* G4VMultipleScattering::SelectModel(G4double kinEnergy)
|
|
{
|
|
return modelManager->SelectModel(kinEnergy, currentCoupleIndex);
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4VEmModel* G4VMultipleScattering::SelectModelForMaterial(
|
|
G4double kinEnergy, size_t& idxRegion) const
|
|
{
|
|
return modelManager->SelectModel(kinEnergy, idxRegion);
|
|
}
|
|
|
|
// ======== Get/Set inline methods used at initialisation ================
|
|
|
|
inline void G4VMultipleScattering::SetBinning(G4int nbins)
|
|
{
|
|
nBins = nbins;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4int G4VMultipleScattering::Binning() const
|
|
{
|
|
return nBins;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetMinKinEnergy(G4double e)
|
|
{
|
|
minKinEnergy = e;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::MinKinEnergy() const
|
|
{
|
|
return minKinEnergy;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetMaxKinEnergy(G4double e)
|
|
{
|
|
maxKinEnergy = e;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::MaxKinEnergy() const
|
|
{
|
|
return maxKinEnergy;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetBuildLambdaTable(G4bool val)
|
|
{
|
|
buildLambdaTable = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4PhysicsTable* G4VMultipleScattering::LambdaTable() const
|
|
{
|
|
return theLambdaTable;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline const G4ParticleDefinition* G4VMultipleScattering::Particle() const
|
|
{
|
|
return currentParticle;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4bool G4VMultipleScattering::LateralDisplasmentFlag() const
|
|
{
|
|
return latDisplasment;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetLateralDisplasmentFlag(G4bool val)
|
|
{
|
|
latDisplasment = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::Skin() const
|
|
{
|
|
return skin;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetSkin(G4double val)
|
|
{
|
|
if(val < 1.0) { skin = 0.0; }
|
|
else { skin = val; }
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::RangeFactor() const
|
|
{
|
|
return facrange;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetRangeFactor(G4double val)
|
|
{
|
|
if(val > 0.0) facrange = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::GeomFactor() const
|
|
{
|
|
return facgeom;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetGeomFactor(G4double val)
|
|
{
|
|
if(val > 0.0) facgeom = val;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4double G4VMultipleScattering::PolarAngleLimit() const
|
|
{
|
|
return polarAngleLimit;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetPolarAngleLimit(G4double val)
|
|
{
|
|
if(val < 0.0) { polarAngleLimit = 0.0; }
|
|
else if(val > CLHEP::pi) { polarAngleLimit = CLHEP::pi; }
|
|
else { polarAngleLimit = val; }
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline G4MscStepLimitType G4VMultipleScattering::StepLimitType() const
|
|
{
|
|
return stepLimit;
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
inline void G4VMultipleScattering::SetStepLimitType(G4MscStepLimitType val)
|
|
{
|
|
stepLimit = val;
|
|
if(val == fMinimal) { facrange = 0.2; }
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
|
|
|
|
#endif
|