G4JAEAElasticScattering.cc

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/*
Authors:
Updated 15 November 2019
 
M. Omer and R. Hajima  on   17 October 2016
contact:
omer.mohamed@jaea.go.jp and hajima.ryoichi@qst.go.jp
Publication Information:
1- M. Omer, R. Hajima, Including Delbrück scattering in Geant4,
Nucl. Instrum. Methods Phys. Res. Sect. B, vol. 405, 2017, pp. 43-49.,
https://doi.org/10.1016/j.nimb.2017.05.028
2- M. Omer, R. Hajima, Geant4 physics process for elastic
   scattering of gamma-rays,
JAEA Technical Report 2018-007, 2018.
https://doi.org/10.11484/jaea-data-code-2018-007
*/
//         on base of G4LivermoreRayleighModel
 
 
#include "G4JAEAElasticScattering.hh"
#include "G4SystemOfUnits.hh"
#include "G4JAEAElasticScatteringModel.hh"
#include "G4Gamma.hh"
#include "G4EmProcessSubType.hh"
 
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G4JAEAElasticScattering::G4JAEAElasticScattering(const G4String& processName,
  G4ProcessType type):G4VEmProcess (processName, type),
    isInitialised(false)
{
  SetStartFromNullFlag(false);
  SetBuildTableFlag(true);
  SetProcessSubType(fRayleigh);
  SetMinKinEnergyPrim(100*keV);
  SetSplineFlag(false);
}
 
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G4JAEAElasticScattering::~G4JAEAElasticScattering() {}
 
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//Check particle for the process
G4bool G4JAEAElasticScattering::IsApplicable(const G4ParticleDefinition& p)
{
  return (&p == G4Gamma::Gamma());
}
 
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//initialize the process
void G4JAEAElasticScattering::InitialiseProcess(const G4ParticleDefinition*)
{
  if(!isInitialised) {
    isInitialised = true;
    if(!EmModel()) { SetEmModel(new G4JAEAElasticScatteringModel); }
    AddEmModel(1, EmModel());
  }  
}
 
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