Import Geant4 9.2.0 source tree
This commit is contained in:
Gabriele Cosmo
@@ -0,0 +1,238 @@
|
||||
//
|
||||
// ********************************************************************
|
||||
// * 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: G4UrbanMscModel2.hh,v 1.11 2008/12/18 13:01:34 gunter Exp $
|
||||
// GEANT4 tag $Name: geant4-09-02 $
|
||||
//
|
||||
// -------------------------------------------------------------------
|
||||
//
|
||||
//
|
||||
// GEANT4 Class header file
|
||||
//
|
||||
//
|
||||
// File name: G4UrbanMscModel2
|
||||
//
|
||||
// Author: Laszlo Urban
|
||||
//
|
||||
// Creation date: 06.03.2008
|
||||
//
|
||||
// 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 G4UrbanMscModel2_h
|
||||
#define G4UrbanMscModel2_h 1
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
#include "G4VMscModel.hh"
|
||||
#include "G4PhysicsTable.hh"
|
||||
#include "G4MscStepLimitType.hh"
|
||||
|
||||
class G4ParticleChangeForMSC;
|
||||
class G4SafetyHelper;
|
||||
class G4LossTableManager;
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
class G4UrbanMscModel2 : public G4VMscModel
|
||||
{
|
||||
|
||||
public:
|
||||
|
||||
G4UrbanMscModel2(const G4String& nam = "UrbanMscUni2");
|
||||
|
||||
virtual ~G4UrbanMscModel2();
|
||||
|
||||
void Initialise(const G4ParticleDefinition*, const G4DataVector&);
|
||||
|
||||
G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition* particle,
|
||||
G4double KineticEnergy,
|
||||
G4double AtomicNumber,
|
||||
G4double AtomicWeight=0.,
|
||||
G4double cut =0.,
|
||||
G4double emax=DBL_MAX);
|
||||
|
||||
void SampleSecondaries(std::vector<G4DynamicParticle*>*,
|
||||
const G4MaterialCutsCouple*,
|
||||
const G4DynamicParticle*,
|
||||
G4double,
|
||||
G4double);
|
||||
|
||||
void SampleScattering(const G4DynamicParticle*,
|
||||
G4double safety);
|
||||
|
||||
G4double ComputeTruePathLengthLimit(const G4Track& track,
|
||||
G4PhysicsTable* theLambdaTable,
|
||||
G4double currentMinimalStep);
|
||||
|
||||
G4double ComputeGeomPathLength(G4double truePathLength);
|
||||
|
||||
G4double ComputeTrueStepLength(G4double geomStepLength);
|
||||
|
||||
G4double ComputeTheta0(G4double truePathLength,
|
||||
G4double KineticEnergy);
|
||||
|
||||
private:
|
||||
|
||||
G4double SimpleScattering(G4double xmeanth, G4double x2meanth);
|
||||
|
||||
G4double SampleCosineTheta(G4double trueStepLength, G4double KineticEnergy);
|
||||
|
||||
G4double SampleDisplacement();
|
||||
|
||||
G4double LatCorrelation();
|
||||
|
||||
void GeomLimit(const G4Track& track);
|
||||
|
||||
inline G4double GetLambda(G4double kinEnergy);
|
||||
|
||||
inline void SetParticle(const G4ParticleDefinition*);
|
||||
|
||||
inline void UpdateCache();
|
||||
|
||||
// hide assignment operator
|
||||
G4UrbanMscModel2 & operator=(const G4UrbanMscModel2 &right);
|
||||
G4UrbanMscModel2(const G4UrbanMscModel2&);
|
||||
|
||||
const G4ParticleDefinition* particle;
|
||||
G4ParticleChangeForMSC* fParticleChange;
|
||||
|
||||
G4SafetyHelper* safetyHelper;
|
||||
G4PhysicsTable* theLambdaTable;
|
||||
const G4MaterialCutsCouple* couple;
|
||||
G4LossTableManager* theManager;
|
||||
|
||||
|
||||
G4double mass;
|
||||
G4double charge,ChargeSquare;
|
||||
G4double masslimite,lambdalimit,fr;
|
||||
|
||||
G4double taubig;
|
||||
G4double tausmall;
|
||||
G4double taulim;
|
||||
G4double currentTau;
|
||||
G4double tlimit;
|
||||
G4double tlimitmin;
|
||||
G4double tlimitminfix;
|
||||
G4double tgeom;
|
||||
|
||||
G4double geombig;
|
||||
G4double geommin;
|
||||
G4double geomlimit;
|
||||
G4double skindepth;
|
||||
G4double smallstep;
|
||||
|
||||
G4double presafety;
|
||||
|
||||
G4double lambda0;
|
||||
G4double lambdaeff;
|
||||
G4double tPathLength;
|
||||
G4double zPathLength;
|
||||
G4double par1,par2,par3;
|
||||
|
||||
G4double stepmin;
|
||||
|
||||
G4double currentKinEnergy;
|
||||
G4double currentRange;
|
||||
G4double rangeinit;
|
||||
G4double currentRadLength;
|
||||
|
||||
G4double theta0max,rellossmax;
|
||||
G4double third;
|
||||
|
||||
G4int currentMaterialIndex;
|
||||
|
||||
G4double y;
|
||||
G4double Zold;
|
||||
G4double Zeff,Z2,Z23,lnZ;
|
||||
G4double coeffth1,coeffth2;
|
||||
G4double coeffc1,coeffc2;
|
||||
G4double scr1ini,scr2ini,scr1,scr2;
|
||||
|
||||
G4bool isInitialized;
|
||||
G4bool inside;
|
||||
G4bool insideskin;
|
||||
};
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
inline
|
||||
G4double G4UrbanMscModel2::GetLambda(G4double e)
|
||||
{
|
||||
G4double x;
|
||||
if(theLambdaTable) {
|
||||
G4bool b;
|
||||
x = ((*theLambdaTable)[currentMaterialIndex])->GetValue(e, b);
|
||||
} else {
|
||||
x = CrossSection(couple,particle,e);
|
||||
}
|
||||
if(x > DBL_MIN) x = 1./x;
|
||||
else x = DBL_MAX;
|
||||
return x;
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
inline
|
||||
void G4UrbanMscModel2::SetParticle(const G4ParticleDefinition* p)
|
||||
{
|
||||
if (p != particle) {
|
||||
particle = p;
|
||||
mass = p->GetPDGMass();
|
||||
charge = p->GetPDGCharge()/eplus;
|
||||
ChargeSquare = charge*charge;
|
||||
}
|
||||
}
|
||||
|
||||
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
||||
|
||||
inline
|
||||
void G4UrbanMscModel2::UpdateCache()
|
||||
{
|
||||
lnZ = std::log(Zeff);
|
||||
coeffth1 = 0.885+lnZ*(0.104-0.0170*lnZ);
|
||||
coeffth2 = 0.028+lnZ*(0.012-0.00125*lnZ);
|
||||
coeffc1 = 2.134-lnZ*(0.1045-0.00602*lnZ);
|
||||
coeffc2 = 0.001126-lnZ*(0.0001089+0.0000247*lnZ);
|
||||
Z2 = Zeff*Zeff;
|
||||
Z23 = std::exp(2.*lnZ/3.);
|
||||
scr1 = scr1ini*Z23;
|
||||
scr2 = scr2ini*Z2*ChargeSquare;
|
||||
// lastMaterial = couple->GetMaterial();
|
||||
Zold = Zeff;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user