// This code implementation is the intellectual property of
// the 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.
//
// ---------------------------------------------------------------
//      GEANT 4 class inlined methods file 
//
//      For information related to this code contact:
//      CERN, IT Division, ASD group
//      ------------ G4hLowEnergyIonisation physics process ------
//                by Vladimir Ivanchenko, 27 July 1999 
//                was made on the base of G4hIonisation class
//                developed by Laszlo Urban
// ************************************************************
// It is the extention of the ionisation process for the slow 
// charged hadrons.
// ************************************************************
// 28 July 1999 V.Ivanchenko cleen up
// 09 Aug  2000 V.Ivanchenko add GetContinuousStepLimit
// 23 Oct  2000 V.Ivanchenko add control on particle mass
// ---------------------------------------------------------------

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inline G4double G4hLowEnergyIonisation::GetMeanFreePath(
                                  const G4Track& trackData,
                                        G4double previousStepSize,
                                  enum  G4ForceCondition* condition) 
{
   const G4DynamicParticle* aParticle = trackData.GetDynamicParticle() ;
   G4Material* aMaterial = trackData.GetMaterial() ;
   G4double meanFreePath;
   G4bool isOutRange ;
 
   *condition = NotForced ;

   G4double kineticEnergy = aParticle->GetKineticEnergy() ;

   if(kineticEnergy < LowestKineticEnergy) meanFreePath = DBL_MAX;

   else {
     if(kineticEnergy > HighestKineticEnergy)
                    kineticEnergy = HighestKineticEnergy ;
     meanFreePath = ((*theMeanFreePathTable)(aMaterial->GetIndex()))->
                    GetValue(kineticEnergy,isOutRange) ;
     }

   return meanFreePath ;
}

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inline G4double G4hLowEnergyIonisation::GetContinuousStepLimit(
                                        const G4Track& track,
                                              G4double,
                                              G4double currentMinimumStep,
                                              G4double&)
{ 
  G4double Step =
    GetConstraints(track.GetDynamicParticle(),track.GetMaterial()) ;

  if((Step>0.0)&&(Step<currentMinimumStep))
     currentMinimumStep = Step ;

  return Step ;
}

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inline G4bool G4hLowEnergyIonisation::IsApplicable(
                                const G4ParticleDefinition& particle) 
{
   return(particle.GetPDGCharge() != 0.0 
       && particle.GetPDGMass() > proton_mass_c2*0.1);
}
         
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