G4ICRU90StoppingData.hh

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#ifndef G4ICRU90StoppingData_h
#define G4ICRU90StoppingData_h 1
 
//----------------------------------------------------------------------
//
// File name:    G4ICRU90StoppingData
//
// Description:  Data on electroninc stopping power from ICRU 90
//
// Author:       Lucas Norberto Burigo
//
// Creation date: 03.09.2018
//
// Modifications: 25.09.2018 V.Ivanchenko adopted for material sub-library
// 
//----------------------------------------------------------------------------
//
// Class Description:
//
// Data on electonic stopping powers from ICRU 90 report
//   
//
 
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#include "globals.hh"
#include "G4Material.hh"
#include "G4PhysicsFreeVector.hh"
 
class G4ICRU90StoppingData 
{ 
public: 
 
  explicit G4ICRU90StoppingData();
 
  ~G4ICRU90StoppingData();
 
  void Initialise();
 
  G4double 
  GetElectronicDEDXforProton(const G4Material*, G4double kinEnergy) const;
 
  G4double 
  GetElectronicDEDXforAlpha(const G4Material*, G4double scaledKinEnergy) const;
 
  inline G4int GetIndex(const G4Material*) const;
 
  inline G4int GetIndex(const G4String&) const;
 
  inline G4double 
  GetElectronicDEDXforProton(G4int idx, G4double kinEnergy) const;
 
  inline G4double 
  GetElectronicDEDXforAlpha(G4int idx, G4double scaledKinEnergy) const;
 
  inline G4bool IsApplicable(const G4Material*) const;
 
  // hide assignment operator
  G4ICRU90StoppingData & operator=
  (const  G4ICRU90StoppingData &right) = delete;
  G4ICRU90StoppingData(const G4ICRU90StoppingData&) = delete;
 
private:
 
  inline G4double GetDEDX(G4PhysicsFreeVector*, G4double e) const;
 
  void FillData();
 
  G4PhysicsFreeVector* AddData(G4int n, const G4double* e, const G4float* dedx);
 
  static constexpr G4int nvectors = 3;
  const G4Material* materials[nvectors];
  G4PhysicsFreeVector* sdata_proton[nvectors];
  G4PhysicsFreeVector* sdata_alpha[nvectors];
  G4bool isInitialized;
};
 
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inline G4bool G4ICRU90StoppingData::IsApplicable(const G4Material* mat) const
{
  return (mat == materials[0] || mat == materials[1] || mat == materials[2]);
}
 
inline G4int G4ICRU90StoppingData::GetIndex(const G4Material* mat) const
{  
  G4int idx = -1;
  if (mat == materials[0]) { idx = 0; }
  else if(mat == materials[1]) { idx = 1; }
  else if(mat == materials[2]) { idx = 2; }
  return idx;
}
 
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inline G4int G4ICRU90StoppingData::GetIndex(const G4String& nam) const
{
  G4int idx = -1;
  if (nam == materials[0]->GetName()) { idx = 0; }
  else if(nam == materials[1]->GetName()) { idx = 1; }
  else if(nam == materials[2]->GetName()) { idx = 2; }
  return idx;
}
 
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inline G4double 
G4ICRU90StoppingData::GetDEDX(G4PhysicsFreeVector* data, G4double e) const
{
  G4double emin = data->Energy(0);
  return (e <= emin) ? (*data)[0]*std::sqrt(e/emin) : data->Value(e);
}
 
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inline G4double G4ICRU90StoppingData::GetElectronicDEDXforProton(
       G4int idx, G4double kinEnergy) const
{
  return (idx < 0 || idx >= nvectors) ? 0.0 
    : GetDEDX(sdata_proton[idx], kinEnergy);
}
 
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inline G4double G4ICRU90StoppingData::GetElectronicDEDXforAlpha(
       G4int idx, G4double scaledKinEnergy) const
{
  return (idx < 0 || idx >= nvectors) ? 0.0 
    : GetDEDX(sdata_alpha[idx], scaledKinEnergy);
}
 
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#endif