Gabriele Cosmo
81 lines
3.0 KiB
Plaintext
81 lines
3.0 KiB
Plaintext
// This code implementation is the intellectual property of
|
|
// the RD44 GEANT4 collaboration.
|
|
//
|
|
// By copying, distributing or modifying the Program (or any work
|
|
// based on the Program) you indicate your acceptance of this statement,
|
|
// and all its terms.
|
|
//
|
|
// $Id: G4MuNuclearInteraction.icc,v 2.2 1998/10/27 12:24:41 urban Exp $
|
|
// GEANT4 tag $Name: geant4-00 $
|
|
//
|
|
// $Id:
|
|
// ---------------------------------------------------------------
|
|
// GEANT 4 class inlined methods file
|
|
//
|
|
// For information related to this code contact:
|
|
// CERN, CN Division, ASD group
|
|
// History: first implementation, based on object model of
|
|
// 2nd December 1995, G.Cosmo
|
|
// -------- G4MuNuclearInteraction physics process ---------
|
|
// by Laszlo Urban, May 1998
|
|
// ***************************************************************
|
|
|
|
inline G4double G4MuNuclearInteraction::GetMeanFreePath(
|
|
const G4Track& trackData,
|
|
G4double previousStepSize,
|
|
G4ForceCondition* condition)
|
|
{
|
|
const G4DynamicParticle* aDynamicParticle;
|
|
G4Material* aMaterial;
|
|
G4double MeanFreePath;
|
|
G4bool isOutRange ;
|
|
|
|
*condition = NotForced ;
|
|
|
|
aDynamicParticle = trackData.GetDynamicParticle();
|
|
aMaterial = trackData.GetMaterial();
|
|
|
|
G4double KineticEnergy = aDynamicParticle->GetKineticEnergy();
|
|
|
|
if (KineticEnergy < LowestKineticEnergy)
|
|
MeanFreePath = DBL_MAX ;
|
|
else {
|
|
if (KineticEnergy > HighestKineticEnergy)
|
|
KineticEnergy = 0.99*HighestKineticEnergy ;
|
|
MeanFreePath = (*theMeanFreePathTable)(aMaterial->GetIndex())->
|
|
GetValue( KineticEnergy, isOutRange );
|
|
}
|
|
return MeanFreePath;
|
|
}
|
|
|
|
inline G4double G4MuNuclearInteraction::ComputeMeanFreePath(
|
|
const G4ParticleDefinition* ParticleType,
|
|
G4double KineticEnergy,
|
|
const G4Material* aMaterial)
|
|
{
|
|
const G4ElementVector* theElementVector = aMaterial->GetElementVector() ;
|
|
const G4double* theAtomNumDensityVector =
|
|
aMaterial->GetAtomicNumDensityVector();
|
|
|
|
G4double SIGMA = 0 ;
|
|
|
|
for ( G4int i=0 ; i < aMaterial->GetNumberOfElements() ; i++ )
|
|
{
|
|
SIGMA += theAtomNumDensityVector[i] *
|
|
ComputeMicroscopicCrossSection( ParticleType, KineticEnergy,
|
|
(*theElementVector)(i)->GetZ(),
|
|
(*theElementVector)(i)->GetA()) ;
|
|
}
|
|
|
|
return SIGMA<=0.0 ? DBL_MAX : 1./SIGMA ;
|
|
}
|
|
|
|
|
|
inline G4bool G4MuNuclearInteraction::IsApplicable(
|
|
const G4ParticleDefinition& particle)
|
|
{
|
|
return( (&particle == (const G4ParticleDefinition *)theMuonMinus)
|
|
||(&particle == (const G4ParticleDefinition *)theMuonPlus)
|
|
) ;
|
|
}
|