Import Geant4 7.1.0 source tree

2016-06-09 12:11:21 +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: G4PEEffectModel.hh,v 1.3 2005/05/12 11:06:43 vnivanch Exp $
+// GEANT4 tag $Name: geant4-07-01 $
+//
+// -------------------------------------------------------------------
+//
+// GEANT4 Class header file
+//
+//
+// File name:     G4PEEffectModel
+//
+// Author:        Vladimir Ivanchenko on base of Michel Maire code
+//
+// Creation date: 21.04.2005
+//
+// Modifications:
+//
+// Class Description:
+//
+// Implementation of the photo-electric effect
+//
+
+// -------------------------------------------------------------------
+//
+
+#ifndef G4PEEffectModel_h
+#define G4PEEffectModel_h 1
+
+#include "G4VEmModel.hh"
+#include "G4PhysicsTable.hh"
+
+class G4ParticleChangeForGamma;
+
+class G4PEEffectModel : public G4VEmModel
+{
+
+public:
+
+  G4PEEffectModel(const G4ParticleDefinition* p = 0,
+		  const G4String& nam = "PhotoElectric");
+
+  virtual ~G4PEEffectModel();
+
+  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
+
+  G4double ComputeCrossSectionPerAtom(
+                                const G4ParticleDefinition*,
+                                      G4double kinEnergy,
+                                      G4double Z,
+                                      G4double A,
+                                      G4double cut,
+                                      G4double emax);
+
+  virtual std::vector<G4DynamicParticle*>* SampleSecondaries(
+                                const G4MaterialCutsCouple*,
+                                const G4DynamicParticle*,
+                                      G4double tmin,
+                                      G4double maxEnergy);
+protected:
+
+  virtual G4double ElecCosThetaDistribution(G4double ElecKineEnergy);
+
+private:
+
+  G4ParticleDefinition*     theGamma;
+  G4ParticleDefinition*     theElectron;
+  G4ParticleChangeForGamma* fParticleChange;
+
+  G4double                  fminimalEnergy;
+  G4bool                    isInitialized;
+};
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo.....
+
+inline G4double G4PEEffectModel::ComputeCrossSectionPerAtom(
+                                       const G4ParticleDefinition*,
+                                             G4double energy,
+                                             G4double Z, G4double,
+                                             G4double, G4double)
+{
+ G4double* SandiaCof = G4SandiaTable::GetSandiaCofPerAtom((G4int)Z, energy);
+
+ G4double energy2 = energy*energy, energy3 = energy*energy2,
+          energy4 = energy2*energy2;
+
+ return SandiaCof[0]/energy  + SandiaCof[1]/energy2 +
+        SandiaCof[2]/energy3 + SandiaCof[3]/energy4;
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#endif