Import Geant4 4.0.0 source tree

2016-06-08 16:18:25 +02:00
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4ShellVacancy.cc
+// GEANT4 tag $Name: 
+//
+// Author: Elena Guardincerri (Elena.Guardincerri@ge.infn.it)
+//
+// History:
+// -----------
+// 21 Sept 2001 Elena Guardincerri     Created
+//
+// -------------------------------------------------------------------
+
+#include "G4ShellVacancy.hh"
+#include "G4Material.hh"
+#include "G4Poisson.hh"
+#include "G4VEMDataSet.hh"
+
+G4ShellVacancy::G4ShellVacancy()
+
+{ }
+
+G4ShellVacancy::~G4ShellVacancy()
+
+{ 
+  G4int size = xsis.size();
+  for (G4int k =0; k<size; k++)
+    {
+      delete xsis[k];
+      xsis[k] = 0;
+    } 
+}
+
+void G4ShellVacancy::AddXsiTable(G4VEMDataSet* set)
+
+{
+  xsis.push_back(set);
+}
+
+G4std::vector<G4int> G4ShellVacancy::GenerateNumberOfIonisations(const G4Material* 
+								 material, 
+								 G4double 
+								 incidentEnergy, 
+								 G4double eLoss) const
+
+{ 
+  G4std::vector<G4int> numberOfIonisations; 
+
+  size_t numberOfElements = material->GetNumberOfElements();
+
+  for (size_t i = 0; i<numberOfElements; i++)
+    {
+    const G4Element* element = material->GetElement(i);
+
+    G4int averageNumberOfIonisations = AverageNOfIonisations(material,
+							     element,
+							     incidentEnergy,
+							     eLoss);
+      G4int ionisations = (G4int) G4Poisson(averageNumberOfIonisations);
+
+      numberOfIonisations.push_back(ionisations);
+    
+    }
+  return  numberOfIonisations;
+
+}
+
+G4int G4ShellVacancy::AverageNOfIonisations(const G4Material* material,
+					    const G4Element* element, 
+					    G4double energy,
+					    G4double eLoss) const
+
+{
+  G4int indexOfElementInMaterial= -1;
+  
+  G4double averageEnergy = energy - eLoss/2.;
+  
+  G4String elementName = element->GetName();
+
+  size_t numberOfElements = material->GetNumberOfElements();
+
+  for (size_t i = 0; i<numberOfElements; i++)
+    {
+      const G4Element* anElement = material->GetElement(i);
+
+      G4String itsName = anElement->GetName();
+
+      if (itsName==elementName)
+	{
+	  indexOfElementInMaterial=i;
+	  break;
+	}
+      //else
+      //{break;}
+    }
+  size_t indexInMaterialTable = material->GetIndex();
+
+    G4VEMDataSet* aSetOfXsi = xsis[indexInMaterialTable];
+
+    G4double aXsi = aSetOfXsi->FindValue(averageEnergy,indexOfElementInMaterial); 
+    
+    G4int averageNumberOfIonisations = (G4int)(aXsi * eLoss);
+    
+    return averageNumberOfIonisations;
+    
+}