G4IonDEDXScalingICRU73 Class Reference

#include <G4IonDEDXScalingICRU73.hh>

Inheritance diagram for G4IonDEDXScalingICRU73:

Public Member Functions
G4int	AtomicNumberBaseIon (G4int atomicNumberIon, const G4Material *) override
	G4IonDEDXScalingICRU73 (G4int minAtomicNumberIon=19, G4int maxAtomicNumberIon=102)
G4double	ScalingFactorDEDX (const G4ParticleDefinition *particle, const G4Material *, G4double kineticEnergy) override
G4double	ScalingFactorEnergy (const G4ParticleDefinition *particle, const G4Material *material) override
	~G4IonDEDXScalingICRU73 ()

Private Member Functions
void	CreateReferenceParticles ()
G4double	EquilibriumCharge (G4double mass, G4double charge, G4double atomicNumberPow, G4double kineticEnergy)
void	UpdateCacheMaterial (const G4Material *material)
void	UpdateCacheParticle (const G4ParticleDefinition *particle)

Private Attributes
G4int	atomicNumberRefAr
G4int	atomicNumberRefFe
G4double	atomicNumberRefPow23Ar
G4double	atomicNumberRefPow23Fe
G4int	cacheAtomicNumber
G4double	cacheAtomicNumberPow23
G4double	cacheCharge
G4double	cacheMass
G4int	cacheMassNumber
const G4Material *	cacheMaterial
const G4ParticleDefinition *	cacheParticle
G4double	chargeRefAr
G4double	chargeRefFe
G4int	massNumberRefAr
G4int	massNumberRefFe
G4double	massRefAr
G4double	massRefFe
G4int	maxAtomicNumber
G4int	minAtomicNumber
G4bool	referencePrepared
G4bool	useFe

Detailed Description

Definition at line 62 of file G4IonDEDXScalingICRU73.hh.

Constructor & Destructor Documentation

G4IonDEDXScalingICRU73()

G4IonDEDXScalingICRU73::G4IonDEDXScalingICRU73 ( G4int  minAtomicNumberIon = 19, G4int  maxAtomicNumberIon = 102  )

explicit

Definition at line 62 of file G4IonDEDXScalingICRU73.cc.

                                                    :
     minAtomicNumber( minAtomicNumberIon ),
     maxAtomicNumber( maxAtomicNumberIon ),
     referencePrepared( false ),
     atomicNumberRefFe( 26 ),
     massNumberRefFe( 56 ),
     atomicNumberRefPow23Fe( 0 ),
     chargeRefFe( 0 ),
     massRefFe( 0 ),
     atomicNumberRefAr( 18 ),
     massNumberRefAr( 40 ),
     atomicNumberRefPow23Ar( 0 ),
     chargeRefAr( 0 ),
     massRefAr( 0 ),
     useFe( true ),
     cacheParticle( 0 ),
     cacheMassNumber( 0 ),
     cacheAtomicNumber( 0 ),
     cacheAtomicNumberPow23( 0 ),
     cacheCharge( 0 ),
     cacheMass( 0 ),
     cacheMaterial( 0 ) { 
 
}

~G4IonDEDXScalingICRU73()

G4IonDEDXScalingICRU73::~G4IonDEDXScalingICRU73

(

)

Definition at line 91 of file G4IonDEDXScalingICRU73.cc.

                                                {
}

Member Function Documentation

AtomicNumberBaseIon()

G4int G4IonDEDXScalingICRU73::AtomicNumberBaseIon ( G4int  atomicNumberIon, const G4Material *    )

overridevirtual

Function for defining a base particle for dE/dx calculation. (no base particle by default). Returns atomic number of base particle.

Reimplemented from G4VIonDEDXScalingAlgorithm.

Definition at line 203 of file G4IonDEDXScalingICRU73.cc.

                                         {    // Target material
 
  UpdateCacheMaterial(material);
 
  G4int atomicNumber = atomicNumberIon;
 
  if(atomicNumberIon >= minAtomicNumber &&
     atomicNumberIon <= maxAtomicNumber &&
     atomicNumberIon != atomicNumberRefFe &&
     atomicNumberIon != atomicNumberRefAr) {
 
     if(!referencePrepared) CreateReferenceParticles();
 
     if( useFe ) atomicNumber = atomicNumberRefFe;
     else atomicNumber = atomicNumberRefAr;     
  }
 
  return atomicNumber;
}

References atomicNumberRefAr, atomicNumberRefFe, CreateReferenceParticles(), eplot::material, maxAtomicNumber, minAtomicNumber, referencePrepared, UpdateCacheMaterial(), and useFe.

CreateReferenceParticles()

void G4IonDEDXScalingICRU73::CreateReferenceParticles ( )

private

Definition at line 96 of file G4IonDEDXScalingICRU73.cc.

                                                      {
  
  G4IonTable* ionTable = G4IonTable::GetIonTable(); 
 
  massRefFe = ionTable->GetIonMass(atomicNumberRefFe,massNumberRefFe);
  massRefAr = ionTable->GetIonMass(atomicNumberRefAr,massNumberRefAr);
 
  chargeRefFe = G4double(atomicNumberRefFe)*CLHEP::eplus;
  chargeRefAr = G4double(atomicNumberRefAr)*CLHEP::eplus;
 
  atomicNumberRefPow23Fe = std::pow(G4double(atomicNumberRefFe), 2./3.);
  atomicNumberRefPow23Ar = std::pow(G4double(atomicNumberRefAr), 2./3.);
 
  referencePrepared = true;
}

References atomicNumberRefAr, atomicNumberRefFe, atomicNumberRefPow23Ar, atomicNumberRefPow23Fe, chargeRefAr, chargeRefFe, CLHEP::eplus, G4IonTable::GetIonMass(), G4IonTable::GetIonTable(), massNumberRefAr, massNumberRefFe, massRefAr, massRefFe, and referencePrepared.

Referenced by AtomicNumberBaseIon(), ScalingFactorDEDX(), and ScalingFactorEnergy().

EquilibriumCharge()

G4double G4IonDEDXScalingICRU73::EquilibriumCharge ( G4double  mass, G4double  charge, G4double  atomicNumberPow, G4double  kineticEnergy  )

inlineprivate

Definition at line 181 of file G4IonDEDXScalingICRU73.hh.

                                                            {
 
  G4double totalEnergy  = kineticEnergy + mass;
  G4double betaSquared  = kineticEnergy * 
                  (totalEnergy + mass) / (totalEnergy * totalEnergy);
 
  G4double beta = std::sqrt( betaSquared );
 
  G4double velOverBohrVel = beta / CLHEP::fine_structure_const;
 
  G4double q1 = 1.0 - G4Exp(-velOverBohrVel / atomicNumberPow);
 
  return q1 * charge;
}

References anonymous_namespace{G4PionRadiativeDecayChannel.cc}::beta, CLHEP::fine_structure_const, and G4Exp().

Referenced by ScalingFactorDEDX().

ScalingFactorDEDX()

G4double G4IonDEDXScalingICRU73::ScalingFactorDEDX ( const G4ParticleDefinition *  , const G4Material *  , G4double    )

overridevirtual

Function for scaling the dE/dx value (no scaling by default). Returns scaling factor for a given ion-material couple and a given kinetic energy.

Reimplemented from G4VIonDEDXScalingAlgorithm.

Definition at line 143 of file G4IonDEDXScalingICRU73.cc.

                                     {                 // Kinetic energy
 
  G4double factor = 1.0;
 
  UpdateCacheParticle(particle);
  UpdateCacheMaterial(material);
 
  if(cacheAtomicNumber >= minAtomicNumber &&
     cacheAtomicNumber <= maxAtomicNumber &&
     cacheAtomicNumber != atomicNumberRefFe &&
     cacheAtomicNumber != atomicNumberRefAr) {
      
      if(!referencePrepared) CreateReferenceParticles();
 
      if( useFe ) {
 
         G4double equilibriumCharge = EquilibriumCharge(cacheMass,
                                                     cacheCharge,
                                                     cacheAtomicNumberPow23,
                                                     kineticEnergy);
 
         G4double scaledKineticEnergy = kineticEnergy * (massRefFe / cacheMass);
      
         G4double equilibriumChargeRefFe = EquilibriumCharge(massRefFe,
                                                        chargeRefFe,
                                                        atomicNumberRefPow23Fe,
                                                        scaledKineticEnergy);
 
         factor = equilibriumCharge * equilibriumCharge/ 
                   ( equilibriumChargeRefFe * equilibriumChargeRefFe );
 
      }
      else {
 
         G4double equilibriumCharge = EquilibriumCharge(cacheMass,
                                                     cacheCharge,
                                                     cacheAtomicNumberPow23,
                                                     kineticEnergy);
 
         G4double scaledKineticEnergy = kineticEnergy * (massRefAr / cacheMass);
      
         G4double equilibriumChargeRefAr = EquilibriumCharge(massRefAr,
                                                        chargeRefAr,
                                                        atomicNumberRefPow23Ar,
                                                        scaledKineticEnergy);
 
         factor = equilibriumCharge * equilibriumCharge/ 
                   ( equilibriumChargeRefAr * equilibriumChargeRefAr );
 
      }
  }  
 
  return factor;
}

References atomicNumberRefAr, atomicNumberRefFe, atomicNumberRefPow23Ar, atomicNumberRefPow23Fe, cacheAtomicNumber, cacheAtomicNumberPow23, cacheCharge, cacheMass, chargeRefAr, chargeRefFe, CreateReferenceParticles(), EquilibriumCharge(), massRefAr, massRefFe, eplot::material, maxAtomicNumber, minAtomicNumber, referencePrepared, UpdateCacheMaterial(), UpdateCacheParticle(), and useFe.

ScalingFactorEnergy()

G4double G4IonDEDXScalingICRU73::ScalingFactorEnergy ( const G4ParticleDefinition *  , const G4Material *    )

overridevirtual

Function for scaling the kinetic energy (no scaling by default). Returns scaling factor for a given ion.

Reimplemented from G4VIonDEDXScalingAlgorithm.

Definition at line 116 of file G4IonDEDXScalingICRU73.cc.

                                        {             // Target material
                                                         
  G4double factor = 1.0;
 
  UpdateCacheParticle(particle);
  UpdateCacheMaterial(material);
 
  if(cacheAtomicNumber >= minAtomicNumber &&
     cacheAtomicNumber <= maxAtomicNumber &&
     cacheAtomicNumber != atomicNumberRefFe &&
     cacheAtomicNumber != atomicNumberRefAr) {
 
     if(!referencePrepared) CreateReferenceParticles();
 
     if( useFe )
         factor = cacheMassNumber * (massRefFe / cacheMass) / massNumberRefFe;
     else
         factor = cacheMassNumber * (massRefAr / cacheMass) / massNumberRefAr;
  }
 
  return factor;
}

References atomicNumberRefAr, atomicNumberRefFe, cacheAtomicNumber, cacheMass, cacheMassNumber, CreateReferenceParticles(), massNumberRefAr, massNumberRefFe, massRefAr, massRefFe, eplot::material, maxAtomicNumber, minAtomicNumber, referencePrepared, UpdateCacheMaterial(), UpdateCacheParticle(), and useFe.

UpdateCacheMaterial()

void G4IonDEDXScalingICRU73::UpdateCacheMaterial ( const G4Material *  material )

inlineprivate

Definition at line 163 of file G4IonDEDXScalingICRU73.hh.

                                        {            // Target material
 
  if(cacheMaterial != material) {
 
     cacheMaterial = material;
 
     useFe = true;
 
     size_t nmbElements = material -> GetNumberOfElements();
     if( nmbElements > 1 ) useFe = false;
 
     if( material -> GetName() == "G4_WATER" ) useFe = true;   
  }
}

References cacheMaterial, eplot::material, and useFe.

Referenced by AtomicNumberBaseIon(), ScalingFactorDEDX(), and ScalingFactorEnergy().

UpdateCacheParticle()

void G4IonDEDXScalingICRU73::UpdateCacheParticle ( const G4ParticleDefinition *  particle )

inlineprivate

Definition at line 147 of file G4IonDEDXScalingICRU73.hh.

                                                  {   // Projectile (ion) 
 
  if(particle != cacheParticle) {
 
     cacheParticle = particle;
     cacheAtomicNumber = particle -> GetAtomicNumber();
     cacheMassNumber = particle -> GetAtomicMass();
     cacheCharge = particle -> GetPDGCharge();
     cacheMass = particle -> GetPDGMass();
     cacheAtomicNumberPow23 = std::pow(G4double(cacheAtomicNumber), 2./3.);
  }
}

References cacheAtomicNumber, cacheAtomicNumberPow23, cacheCharge, cacheMass, cacheMassNumber, and cacheParticle.

Referenced by ScalingFactorDEDX(), and ScalingFactorEnergy().

Field Documentation

atomicNumberRefAr

G4int G4IonDEDXScalingICRU73::atomicNumberRefAr

private

Definition at line 124 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), CreateReferenceParticles(), ScalingFactorDEDX(), and ScalingFactorEnergy().

atomicNumberRefFe

G4int G4IonDEDXScalingICRU73::atomicNumberRefFe

private

Definition at line 116 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), CreateReferenceParticles(), ScalingFactorDEDX(), and ScalingFactorEnergy().

atomicNumberRefPow23Ar

G4double G4IonDEDXScalingICRU73::atomicNumberRefPow23Ar

private

Definition at line 126 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorDEDX().

atomicNumberRefPow23Fe

G4double G4IonDEDXScalingICRU73::atomicNumberRefPow23Fe

private

Definition at line 118 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorDEDX().

cacheAtomicNumber

G4int G4IonDEDXScalingICRU73::cacheAtomicNumber

private

Definition at line 136 of file G4IonDEDXScalingICRU73.hh.

Referenced by ScalingFactorDEDX(), ScalingFactorEnergy(), and UpdateCacheParticle().

cacheAtomicNumberPow23

G4double G4IonDEDXScalingICRU73::cacheAtomicNumberPow23

private

Definition at line 137 of file G4IonDEDXScalingICRU73.hh.

Referenced by ScalingFactorDEDX(), and UpdateCacheParticle().

cacheCharge

G4double G4IonDEDXScalingICRU73::cacheCharge

private

Definition at line 138 of file G4IonDEDXScalingICRU73.hh.

Referenced by ScalingFactorDEDX(), and UpdateCacheParticle().

cacheMass

G4double G4IonDEDXScalingICRU73::cacheMass

private

Definition at line 139 of file G4IonDEDXScalingICRU73.hh.

Referenced by ScalingFactorDEDX(), ScalingFactorEnergy(), and UpdateCacheParticle().

cacheMassNumber

G4int G4IonDEDXScalingICRU73::cacheMassNumber

private

Definition at line 135 of file G4IonDEDXScalingICRU73.hh.

Referenced by ScalingFactorEnergy(), and UpdateCacheParticle().

cacheMaterial

const G4Material* G4IonDEDXScalingICRU73::cacheMaterial

private

Definition at line 142 of file G4IonDEDXScalingICRU73.hh.

Referenced by UpdateCacheMaterial().

cacheParticle

const G4ParticleDefinition* G4IonDEDXScalingICRU73::cacheParticle

private

Definition at line 134 of file G4IonDEDXScalingICRU73.hh.

Referenced by UpdateCacheParticle().

chargeRefAr

G4double G4IonDEDXScalingICRU73::chargeRefAr

private

Definition at line 127 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorDEDX().

chargeRefFe

G4double G4IonDEDXScalingICRU73::chargeRefFe

private

Definition at line 119 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorDEDX().

massNumberRefAr

G4int G4IonDEDXScalingICRU73::massNumberRefAr

private

Definition at line 125 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorEnergy().

massNumberRefFe

G4int G4IonDEDXScalingICRU73::massNumberRefFe

private

Definition at line 117 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), and ScalingFactorEnergy().

massRefAr

G4double G4IonDEDXScalingICRU73::massRefAr

private

Definition at line 128 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), ScalingFactorDEDX(), and ScalingFactorEnergy().

massRefFe

G4double G4IonDEDXScalingICRU73::massRefFe

private

Definition at line 120 of file G4IonDEDXScalingICRU73.hh.

Referenced by CreateReferenceParticles(), ScalingFactorDEDX(), and ScalingFactorEnergy().

maxAtomicNumber

G4int G4IonDEDXScalingICRU73::maxAtomicNumber

private

Definition at line 110 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), ScalingFactorDEDX(), and ScalingFactorEnergy().

minAtomicNumber

G4int G4IonDEDXScalingICRU73::minAtomicNumber

private

Definition at line 109 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), ScalingFactorDEDX(), and ScalingFactorEnergy().

referencePrepared

G4bool G4IonDEDXScalingICRU73::referencePrepared

private

Definition at line 112 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), CreateReferenceParticles(), ScalingFactorDEDX(), and ScalingFactorEnergy().

useFe

G4bool G4IonDEDXScalingICRU73::useFe

private

Definition at line 131 of file G4IonDEDXScalingICRU73.hh.

Referenced by AtomicNumberBaseIon(), ScalingFactorDEDX(), ScalingFactorEnergy(), and UpdateCacheMaterial().

---

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

• source/processes/electromagnetic/lowenergy/include/G4IonDEDXScalingICRU73.hh
• source/processes/electromagnetic/lowenergy/src/G4IonDEDXScalingICRU73.cc