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This commit is contained in:
Gabriele Cosmo
2016-06-09 16:15:05 +02:00
parent b79225fb37
commit 74cad5e589
3877 changed files with 234205 additions and 167127 deletions
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source/processes/electromagnetic/standard/include/G4eCoulombScatteringModel.hh
+21 -30
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@@ -23,8 +23,8 @@
// * acceptance of all terms of the Geant4 Software license. *
// ********************************************************************
//
// $Id: G4eCoulombScatteringModel.hh,v 1.36 2008/08/04 08:49:09 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02 $
// $Id: G4eCoulombScatteringModel.hh,v 1.49 2009/10/10 15:16:57 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03 $
//
// -------------------------------------------------------------------
//
@@ -45,6 +45,8 @@
// make some members protected
// 09.10.07 V.Ivanchenko reorganized methods, add cut dependence in scattering off e-
// 09.06.08 V.Ivanchenko add SelectIsotope and sampling of the recoil ion
// 17.06.09 C.Consoalndi modified SetupTarget method - remove kinFactor
//
//
// Class Description:
//
@@ -64,8 +66,9 @@
#include "G4VEmModel.hh"
#include "G4PhysicsTable.hh"
#include "G4NistManager.hh"
#include "globals.hh"
#include "G4NistManager.hh"
#include <vector>
class G4ParticleChangeForGamma;
class G4ParticleDefinition;
@@ -128,7 +131,8 @@ protected:
G4ParticleTable* theParticleTable;
G4ParticleChangeForGamma* fParticleChange;
G4NistManager* fNistManager;
const G4DataVector* currentCuts;
const std::vector<G4double>* pCuts;
const G4MaterialCutsCouple* currentCouple;
const G4Material* currentMaterial;
@@ -136,7 +140,6 @@ protected:
G4int currentMaterialIndex;
G4double coeff;
G4double constn;
G4double cosThetaMin;
G4double cosThetaMax;
G4double cosTetMinNuc;
@@ -164,16 +167,19 @@ protected:
// target
G4double targetZ;
G4double targetMass;
G4double screenZ;
G4double formfactA;
G4int idxelm;
G4int iz;
private:
G4double a0;
G4double alpha2;
G4double faclim;
G4double FF[100];
static G4double ScreenRSquare[100];
static G4double FormFactor[100];
G4bool isInitialised;
};
@@ -203,7 +209,6 @@ void G4eCoulombScatteringModel::SetupParticle(const G4ParticleDefinition* p)
G4double q = particle->GetPDGCharge()/eplus;
chargeSquare = q*q;
tkin = 0.0;
lowEnergyLimit = keV*mass/electron_mass_c2;
}
}
@@ -218,7 +223,7 @@ inline void G4eCoulombScatteringModel::SetupKinematic(G4double ekin,
invbeta2 = 1.0 + mass*mass/mom2;
cosTetMinNuc = cosThetaMin;
cosTetMaxNuc = cosThetaMax;
if(ekin <= 10.*cut && mass < MeV && cosThetaMin < 1.0) {
if(mass < MeV && cosThetaMin < 1.0 && ekin <= 10.*cut) {
cosTetMinNuc = ekin*(cosThetaMin + 1.0)/(10.*cut) - 1.0;
}
ComputeMaxElectronScattering(cut);
@@ -232,31 +237,17 @@ inline void G4eCoulombScatteringModel::SetupTarget(G4double Z, G4double e)
if(Z != targetZ || e != etag) {
etag = e;
targetZ = Z;
G4int iz= G4int(Z);
iz= G4int(Z);
if(iz > 99) iz = 99;
G4double x = fNistManager->GetZ13(iz);
screenZ = a0*x*x/mom2;
if(iz > 1) screenZ *=(1.13 + 3.76*invbeta2*Z*Z*chargeSquare*alpha2);
//screenZ = a0*x*x*(1.13 + 3.76*Z*Z*chargeSquare*alpha2)/mom2;
// A.V. Butkevich et al., NIM A 488 (2002) 282
formfactA = FF[iz];
if(formfactA == 0.0) {
x = fNistManager->GetA27(iz);
formfactA = constn*x*x;
FF[iz] = formfactA;
}
formfactA *= mom2;
targetMass = fNistManager->GetAtomicMassAmu(iz)*amu_c2;
screenZ = ScreenRSquare[iz]/mom2;
screenZ *=(1.13 + std::min(1.0,3.76*Z*Z*invbeta2*alpha2));
if(mass > MeV) { screenZ *= 2.0; }
formfactA = FormFactor[iz]*mom2;
cosTetMaxNuc2 = cosTetMaxNuc;
if(particle == theProton && 1 == iz && cosTetMaxNuc2 < 0.0) {
if(1 == iz && particle == theProton && cosTetMaxNuc2 < 0.0) {
cosTetMaxNuc2 = 0.0;
}
/*
G4double ee = 10.*eV*Z;
if(1 == iz) ee *= 2.0;
G4double z = std::min(cosTetMaxElec, 1.0 - std::max(ecut,ee)*amu_c2
*fNistManager->GetAtomicMassAmu(iz)/mom2);
cosTetMaxElec2 = std::max(cosTetMaxNuc2, z);
*/
cosTetMaxElec2 = cosTetMaxElec;
}
}