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geant4/source/processes/electromagnetic/utils/include/G4EmUtility.hh
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//
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//
// Geant4 header G4EmUtility
//
// Author V.Ivanchenko 14.03.2022
//
// Utilities used at initialisation of EM physics
//
#ifndef G4EmUtility_h
#define G4EmUtility_h 1
#include <vector>
#include "globals.hh"
#include "G4Region.hh"
#include "G4PhysicsTable.hh"
#include "G4EmTableType.hh"
#include "G4ParticleDefinition.hh"
#include "G4VDiscreteProcess.hh"
#include "G4LossTableBuilder.hh"
#include "G4Material.hh"
#include "G4Element.hh"
#include "G4Isotope.hh"
#include "G4DataVector.hh"
#include "G4VEmModel.hh"
class G4EmUtility
{
public:
// find G4Region pointer by name, by default no verbosity
static const G4Region* FindRegion(const G4String& regionName,
const G4int verbose = 0);
// sample random G4Element for the case if cross section is
// proportional to the number of electrons in an atom
static const G4Element* SampleRandomElement(const G4Material*);
// sample random G4Isotope
static const G4Isotope* SampleRandomIsotope(const G4Element*);
// find energy of cross section maximum for all couples
static std::vector<G4double>* FindCrossSectionMax(G4PhysicsTable*);
static std::vector<G4double>*
FindCrossSectionMax(G4VDiscreteProcess*, const G4ParticleDefinition*);
// fill structure describing more than one peak in cross sections
static std::vector<G4TwoPeaksXS*>*
FillPeaksStructure(G4PhysicsTable*, G4LossTableBuilder*);
// model initialisation
static void InitialiseElementSelectors(G4VEmModel*,
const G4ParticleDefinition*,
const G4DataVector& cuts,
const G4double emin,
const G4double emax);
// fluctuations per G4Region
static void FillFluctFlags(std::vector<std::pair<G4String, G4bool> >& reg,
std::vector<G4bool>* flags);
};
#endif