Gabriele Cosmo
113 lines
4.0 KiB
C++
113 lines
4.0 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4CrossSectionHandler.cc,v 1.17 2005/11/30 16:34:11 gcosmo Exp $
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// GEANT4 tag $Name: geant4-08-00 $
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//
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// Author: Maria Grazia Pia (Maria.Grazia.Pia@cern.ch)
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//
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// History:
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// -----------
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// 1 Aug 2001 MGP Created
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// 19 Jul 2002 VI Create composite data set for material
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// 24 Apr 2003 VI Cut per region mfpt
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//
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// -------------------------------------------------------------------
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#include "G4CrossSectionHandler.hh"
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#include "G4VDataSetAlgorithm.hh"
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#include "G4VEMDataSet.hh"
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#include "G4EMDataSet.hh"
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#include "G4CompositeEMDataSet.hh"
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#include "G4ShellEMDataSet.hh"
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#include "G4ProductionCutsTable.hh"
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#include "G4Material.hh"
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#include "G4Element.hh"
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#include "Randomize.hh"
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#include <map>
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#include <vector>
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#include "G4LogLogInterpolation.hh"
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G4CrossSectionHandler::G4CrossSectionHandler()
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{ }
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G4CrossSectionHandler::~G4CrossSectionHandler()
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{ }
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std::vector<G4VEMDataSet*>*
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G4CrossSectionHandler::BuildCrossSectionsForMaterials(const G4DataVector& energyVector,
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const G4DataVector*)
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{
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G4DataVector* energies;
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G4DataVector* data;
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std::vector<G4VEMDataSet*>* matCrossSections = new std::vector<G4VEMDataSet*>;
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const G4ProductionCutsTable* theCoupleTable=
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G4ProductionCutsTable::GetProductionCutsTable();
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size_t numOfCouples = theCoupleTable->GetTableSize();
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size_t nOfBins = energyVector.size();
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const G4VDataSetAlgorithm* interpolationAlgo = CreateInterpolation();
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for (size_t m=0; m<numOfCouples; m++)
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{
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const G4MaterialCutsCouple* couple = theCoupleTable->GetMaterialCutsCouple(m);
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const G4Material* material= couple->GetMaterial();
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G4int nElements = material->GetNumberOfElements();
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const G4ElementVector* elementVector = material->GetElementVector();
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const G4double* nAtomsPerVolume = material->GetAtomicNumDensityVector();
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G4VDataSetAlgorithm* algo = interpolationAlgo->Clone();
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G4VEMDataSet* setForMat = new G4CompositeEMDataSet(algo,1.,1.);
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for (G4int i=0; i<nElements; i++) {
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G4int Z = (G4int) (*elementVector)[i]->GetZ();
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G4double density = nAtomsPerVolume[i];
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energies = new G4DataVector;
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data = new G4DataVector;
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for (size_t bin=0; bin<nOfBins; bin++)
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{
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G4double e = energyVector[bin];
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energies->push_back(e);
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G4double cross = density*FindValue(Z,e);
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data->push_back(cross);
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}
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G4VDataSetAlgorithm* algo1 = interpolationAlgo->Clone();
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G4VEMDataSet* elSet = new G4EMDataSet(i,energies,data,algo1,1.,1.);
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setForMat->AddComponent(elSet);
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}
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matCrossSections->push_back(setForMat);
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}
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return matCrossSections;
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}
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