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// $Id: G4hIonisation.icc,v 1.11 2002/04/09 17:34:41 vnivanch Exp $
// GEANT4 tag $Name: geant4-04-01 $
//
// 
//------------------ G4hIonisation physics process -----------------------------
//                   by Laszlo Urban, 30 May 1997
//------------------------------------------------------------------------------
//
// 24/09/97: corrected by L.Urban
// 20/11/97: correction on MeanFreePath for KineticEnergy > HighestLimit
// 14-08-01: 'cleanup' of GetMeanFreePath (mma)
// 09-04-02: e+- are not applicable (V.Ivanchenko)
// 
//------------------------------------------------------------------------------

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inline G4bool G4hIonisation::IsApplicable(
                            const G4ParticleDefinition& particle)
{
   return(particle.GetPDGCharge() != 0. && particle.GetPDGMass() > 10.*MeV);
}

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inline G4double G4hIonisation::GetMeanFreePath(const G4Track& track, G4double,
                                               G4ForceCondition*) 
{
 const G4DynamicParticle* dynParticle = track.GetDynamicParticle();
 G4double kinEnergy = (dynParticle->GetKineticEnergy())*initialMass/(dynParticle->GetMass());
 G4double q = dynParticle->GetCharge()/eplus;
 G4double currentChargeSquare = q*q;
 G4Material* aMaterial  = track.GetMaterial();
   
 G4double MeanFreePath;
 G4bool isOut;
    
 if(kinEnergy > UpperBoundLambda) kinEnergy = UpperBoundLambda;
 if(kinEnergy > LowerBoundLambda)
         MeanFreePath = (((*theMeanFreePathTable)(aMaterial->GetIndex()))->
                        GetValue(kinEnergy, isOut))/currentChargeSquare; 
 else    MeanFreePath = DBL_MAX;

 return MeanFreePath;
}

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