Gabriele Cosmo
142 lines
4.2 KiB
C++
142 lines
4.2 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//---------------------------------------------------------------------------
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//
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// GEANT4 Class file
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//
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// Description: Data structure for cross sections per materials
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//
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// Author: V.Ivanchenko 31.05.2018
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//
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// Modifications:
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//
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//----------------------------------------------------------------------------
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//
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#ifndef HadronXSDataTable_h
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#define HadronXSDataTable_h 1
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "globals.hh"
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#include "G4Element.hh"
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#include "G4ElementVector.hh"
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#include "G4PhysicsVector.hh"
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#include "Randomize.hh"
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#include <vector>
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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class G4Material;
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class G4DynamicParticle;
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class G4CrossSectionDataStore;
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class G4HadElementSelector
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{
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public:
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G4HadElementSelector(G4DynamicParticle*, G4CrossSectionDataStore*,
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const G4Material*, G4int bins,
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G4double emin, G4double emax, G4bool spline);
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~G4HadElementSelector();
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void Dump();
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inline const G4Element* SelectRandomAtom(G4double e) const
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{
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const G4Element* element = (*theElementVector)[nElmMinusOne];
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if (nElmMinusOne > 0) {
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G4double x = G4UniformRand();
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for(G4int i=0; i<nElmMinusOne; ++i) {
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if (x <= xSections[i]->Value(e)) {
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element = (*theElementVector)[i];
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break;
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}
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}
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}
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return element;
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}
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private:
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G4HadElementSelector(G4HadElementSelector &) = delete;
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G4HadElementSelector& operator=(const G4HadElementSelector &right) = delete;
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G4int nElmMinusOne;
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const G4ElementVector* theElementVector;
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std::vector<G4PhysicsVector*> xSections;
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};
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class G4HadronXSDataTable
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{
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public:
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explicit G4HadronXSDataTable();
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~G4HadronXSDataTable();
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void Initialise(G4DynamicParticle*, G4CrossSectionDataStore*,
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G4int bins, G4double emin, G4double emax,
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G4bool spline);
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inline const G4PhysicsVector* HasData(size_t idx) const
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{
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return xsData[idx];
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};
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inline G4double GetCrossSection(G4double e, size_t idx) const
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{
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return xsData[idx]->Value(e);
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};
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inline const G4Element* SelectRandomAtom(G4double e, size_t idx) const
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{
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return elmSelectors[idx]->SelectRandomAtom(e);
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};
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void Dump();
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private:
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// Assignment operator and copy constructor
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G4HadronXSDataTable & operator=
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(const G4HadronXSDataTable &right) = delete;
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G4HadronXSDataTable(const G4HadronXSDataTable&) = delete;
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std::vector<G4PhysicsVector*> xsData;
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std::vector<G4HadElementSelector*> elmSelectors;
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size_t nMaterials;
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};
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#endif
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