Import Geant4 9.2.0 source tree

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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * 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.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// $Id: G4ElectronIonPair.hh,v 1.2 2008/10/17 14:46:16 vnivanch Exp $
+// GEANT4 tag $Name: geant4-09-02 $
+//
+//
+#ifndef G4ElectronIonPair_h
+#define G4ElectronIonPair_h 1
+
+// -------------------------------------------------------------
+//
+// GEANT4 Class header file
+//
+//
+// File name:     G4ElectronIonPair
+//
+// Author:        Vladimir Ivanchenko
+//
+// Creation date: 08.07.2008
+//
+// Modifications:
+//
+//
+// Class Description:
+//   Compution on number of electon-ion or electorn-hole pairs
+//   at the step of a particle and sampling ionisation points 
+//   in space
+//
+// Based on ICRU Report 31, 1979
+// "Average Energy Required to Produce an Ion Pair"  
+// 
+// -------------------------------------------------------------
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#include "globals.hh"
+#include "G4Step.hh"
+#include "G4ParticleDefinition.hh"
+#include "G4ThreeVector.hh"
+#include "G4TrackVector.hh"
+#include "G4VProcess.hh"
+#include <vector>
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+class G4Material;
+
+class G4ElectronIonPair
+{
+public: 
+
+  G4ElectronIonPair();
+
+  virtual ~G4ElectronIonPair();
+
+  // compute mean number of ionisation points at a step
+  G4double MeanNumberOfIonsAlongStep(const G4ParticleDefinition*, 
+				     const G4Material*,
+				     G4double edepTotal,
+				     G4double edepNIEL = 0.0);
+
+  inline G4double MeanNumberOfIonsAlongStep(const G4Step*); 
+
+  // returns pointer to the new vector of positions of
+  // ionisation points in the World coordinate system 
+  std::vector<G4ThreeVector>* 
+  SampleIonsAlongStep(const G4ThreeVector& prePosition,
+		      const G4ThreeVector& postPosition,
+		      G4double numberOfIonisations);
+
+  std::vector<G4ThreeVector>* SampleIonsAlongStep(const G4Step*);
+
+  // compute number of holes in the atom after PostStep interaction
+  G4int ResidualeChargePostStep(const G4ParticleDefinition*,
+				const G4TrackVector* secondary = 0,
+				G4int processSubType = -1);
+
+  inline G4int ResidualeChargePostStep(const G4Step*);
+
+  // find mean energies per ionisation 
+  G4double FindG4MeanEnergyPerIonPair(const G4Material*);
+
+  // dump mean energies per ionisation used in run time
+  void DumpMeanEnergyPerIonPair();
+
+  // dump G4 list
+  void DumpG4MeanEnergyPerIonPair();
+
+  inline void SetVerbose(G4int);
+
+private:
+
+  // hide assignment operator
+  G4ElectronIonPair & operator=(const G4ElectronIonPair &right);
+  G4ElectronIonPair(const G4ElectronIonPair&);
+
+  G4double FindMeanEnergyPerIonPair(const G4Material*);
+
+  void Initialise();
+
+  const G4ParticleDefinition* gamma;
+
+  // cash
+  const G4Material*           curMaterial;
+  G4double                    curMeanEnergy;
+
+  G4int    verbose;             
+  G4int    nMaterials;
+
+  // list of G4 NIST materials with mean energy per ion defined 
+  std::vector<G4double>       g4MatData;
+  std::vector<G4String>       g4MatNames;
+
+};
+
+inline G4double 
+G4ElectronIonPair::MeanNumberOfIonsAlongStep(const G4Step* step)
+{
+  return MeanNumberOfIonsAlongStep(step->GetTrack()->GetDefinition(),
+				   step->GetPreStepPoint()->GetMaterial(),
+				   step->GetTotalEnergyDeposit(),
+				   step->GetNonIonizingEnergyDeposit());
+}
+
+inline std::vector<G4ThreeVector>* 
+G4ElectronIonPair::SampleIonsAlongStep(const G4Step* step)
+{
+  return SampleIonsAlongStep(step->GetPreStepPoint()->GetPosition(),
+			     step->GetPostStepPoint()->GetPosition(),
+			     MeanNumberOfIonsAlongStep(step));
+}
+
+inline 
+G4int G4ElectronIonPair::ResidualeChargePostStep(const G4Step* step)
+{
+  G4int subtype = -1;
+  const G4VProcess* proc = step->GetPostStepPoint()->GetProcessDefinedStep();
+  if(proc) subtype = proc->GetProcessSubType();
+  return ResidualeChargePostStep(step->GetTrack()->GetDefinition(),
+				 step->GetSecondary(),
+				 subtype);
+}
+
+inline void G4ElectronIonPair::SetVerbose(G4int val)
+{
+  verbose = val;
+}
+
+#endif
+