G4RToEConvForProton Class Reference

#include <G4RToEConvForProton.hh>

Inheritance diagram for G4RToEConvForProton:

Public Member Functions
	G4RToEConvForProton ()
virtual	~G4RToEConvForProton ()
virtual G4double	Convert (G4double rangeCut, const G4Material *material)
virtual void	Reset ()
Public Member Functions inherited from G4VRangeToEnergyConverter
	G4VRangeToEnergyConverter ()
	G4VRangeToEnergyConverter (const G4VRangeToEnergyConverter &r)
G4VRangeToEnergyConverter &	operator= (const G4VRangeToEnergyConverter &r)
virtual	~G4VRangeToEnergyConverter ()
G4bool	operator== (const G4VRangeToEnergyConverter &r) const
G4bool	operator!= (const G4VRangeToEnergyConverter &r) const
virtual G4double	Convert (G4double rangeCut, const G4Material *material)
const G4ParticleDefinition *	GetParticleType () const
const G4PhysicsTable *	GetLossTable () const
virtual void	Reset ()
void	SetVerboseLevel (G4int value)
G4int	GetVerboseLevel () const

Protected Member Functions
virtual G4double	ComputeLoss (G4double AtomicNumber, G4double KineticEnergy)
Protected Member Functions inherited from G4VRangeToEnergyConverter
virtual void	BuildLossTable ()
virtual G4double	ComputeLoss (G4double AtomicNumber, G4double KineticEnergy)=0
virtual void	BuildRangeVector (const G4Material *aMaterial, G4RangeVector *rangeVector)
G4double	ConvertCutToKineticEnergy (G4RangeVector *theRangeVector, G4double theCutInLength, std::size_t materialIndex) const

Protected Attributes
G4double	Mass = 0.0
G4double	Z = -1.0
G4double	tau0 = 0.0
G4double	taul = 0.0
G4double	taum = 0.0
G4double	ionpot = 0.0
G4double	ca = 0.0
G4double	cba = 0.0
G4double	cc = 0.0
Protected Attributes inherited from G4VRangeToEnergyConverter
G4double	fMaxEnergyCut = 0.0
const G4ParticleDefinition *	theParticle = nullptr
G4LossTable *	theLossTable = nullptr
G4int	NumberOfElements = 0
const G4int	TotBin = 300
std::vector< G4RangeVector * >	fRangeVectorStore

Additional Inherited Members
Static Public Member Functions inherited from G4VRangeToEnergyConverter
static void	SetEnergyRange (G4double lowedge, G4double highedge)
static G4double	GetLowEdgeEnergy ()
static G4double	GetHighEdgeEnergy ()
static G4double	GetMaxEnergyCut ()
static void	SetMaxEnergyCut (G4double value)
Protected Types inherited from G4VRangeToEnergyConverter
using	G4LossVector = G4PhysicsLogVector
using	G4RangeVector = G4PhysicsLogVector
using	G4LossTable = G4PhysicsTable
Static Protected Attributes inherited from G4VRangeToEnergyConverter
static G4double	LowestEnergy = 0.99e-3*MeV
static G4double	HighestEnergy = 100.0e6*MeV
static G4double	MaxEnergyCut = 10.0*GeV

Detailed Description

Definition at line 43 of file G4RToEConvForProton.hh.

Constructor & Destructor Documentation

G4RToEConvForProton()

G4RToEConvForProton::G4RToEConvForProton

(

)

Definition at line 41 of file G4RToEConvForProton.cc.

  : G4VRangeToEnergyConverter()
{    
  theParticle = G4ParticleTable::GetParticleTable()->FindParticle("proton");
  if (theParticle == nullptr)
  {
#ifdef G4VERBOSE
    if (GetVerboseLevel()>0)
    {
      G4cout << "G4RToEConvForProton::G4RToEConvForProton() - ";
      G4cout << "Proton is not defined !!" << G4endl;
    }
#endif
  }
  else
  {
    Mass = theParticle->GetPDGMass();
  } 
}

~G4RToEConvForProton()

G4RToEConvForProton::~G4RToEConvForProton ( )

virtual

Definition at line 62 of file G4RToEConvForProton.cc.

{ 
}

Member Function Documentation

ComputeLoss()

G4double G4RToEConvForProton::ComputeLoss ( G4double  AtomicNumber, G4double  KineticEnergy  )

protectedvirtual

Implements G4VRangeToEnergyConverter.

Definition at line 77 of file G4RToEConvForProton.cc.

{
  //  calculate dE/dx
  const G4double z2Particle = 1.0;
 
  if( std::fabs(AtomicNumber-Z)>0.1 )
  {
    // recalculate constants
    Z = AtomicNumber;
    G4double Z13 = std::exp(std::log(Z)/3.);
    tau0 = 0.1*Z13*MeV/proton_mass_c2;
    taum = 0.035*Z13*MeV/proton_mass_c2;
    taul = 2.*MeV/proton_mass_c2;
    ionpot = 1.6e-5*MeV*std::exp(0.9*std::log(Z));
    cc = (taul+1.)*(taul+1.)*std::log(2.*electron_mass_c2*taul*(taul+2.)/ionpot)
       / (taul*(taul+2.))-1.;
    cc = 2.*twopi_mc2_rcl2*Z*cc*std::sqrt(taul);
    ca = cc/((1.-0.5*std::sqrt(tau0/taum))*tau0);
    cba = -0.5/std::sqrt(taum);
  }
 
  G4double tau = KineticEnergy/Mass;
  G4double dEdx;
  if ( tau <= tau0 )
  {
    dEdx = ca*(std::sqrt(tau)+cba*tau);
  }
  else
  {
    if( tau <= taul )
    {
      dEdx = cc/std::sqrt(tau);
    }
    else
    {
      dEdx = (tau+1.)*(tau+1.)
           * std::log(2.*electron_mass_c2*tau*(tau+2.)/ionpot)
           / (tau*(tau+2.))-1.;
      dEdx = 2.*twopi_mc2_rcl2*Z*dEdx;
    }
  }
  return dEdx*z2Particle ;
}

Convert()

G4double G4RToEConvForProton::Convert ( G4double  rangeCut, const G4Material *  material  )

virtual

Reimplemented from G4VRangeToEnergyConverter.

Definition at line 67 of file G4RToEConvForProton.cc.

{
  // Simple formula - range = Ekin/(100*keV)*(1*mm);
 
  return (rangeCut/(1.0*mm)) * (100.0*keV); 
}

Reset()

void G4RToEConvForProton::Reset ( )

virtual

Reimplemented from G4VRangeToEnergyConverter.

Definition at line 125 of file G4RToEConvForProton.cc.

{
  // do nothing because loss tables and range vectors are not used 
 
  return;
}

Member Data Documentation

ca

G4double G4RToEConvForProton::ca = 0.0

protected

Definition at line 69 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

cba

G4double G4RToEConvForProton::cba = 0.0

protected

Definition at line 70 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

cc

G4double G4RToEConvForProton::cc = 0.0

protected

Definition at line 71 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

ionpot

G4double G4RToEConvForProton::ionpot = 0.0

protected

Definition at line 68 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

Mass

G4double G4RToEConvForProton::Mass = 0.0

protected

Definition at line 63 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss(), and G4RToEConvForProton().

tau0

G4double G4RToEConvForProton::tau0 = 0.0

protected

Definition at line 65 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

taul

G4double G4RToEConvForProton::taul = 0.0

protected

Definition at line 66 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

taum

G4double G4RToEConvForProton::taum = 0.0

protected

Definition at line 67 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

Z

G4double G4RToEConvForProton::Z = -1.0

protected

Definition at line 64 of file G4RToEConvForProton.hh.

Referenced by ComputeLoss().

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The documentation for this class was generated from the following files:

• G4RToEConvForProton.hh
• G4RToEConvForProton.cc