Import Geant4 10.7.0 source tree

2020-12-04 12:30:43 +01:00
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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.          *
+// ********************************************************************
+//
+//
+// -------------------------------------------------------------------
+//
+// GEANT4 Class header file
+//
+//
+// File name:  G4ModifiedMephi
+//
+// Author:        V. Ivanchenko
+// 
+// Creation date: 27 October 2020
+//
+// Modifications: 
+//
+// Class Description: 
+//
+// Bremsstrahlung Angular Distribution Generation 
+// A.G. Bogdanov et al., IEEE Trans. Nuc. Sci., Vol.53, No.2, 2006
+//
+// -------------------------------------------------------------------
+//
+
+#ifndef G4ModifiedMephi_h
+#define G4ModifiedMephi_h 1
+
+#include "G4ios.hh"
+#include "globals.hh"
+#include "G4VEmAngularDistribution.hh"
+
+class G4ModifiedMephi : public G4VEmAngularDistribution
+{
+
+public:
+
+  explicit G4ModifiedMephi(const G4String& name = "");
+
+  virtual ~G4ModifiedMephi();
+
+  virtual G4ThreeVector& SampleDirection(const G4DynamicParticle* dp,
+                                         G4double gEnergy, G4int Z,
+                                         const G4Material* mat = nullptr) final;
+
+  virtual void SamplePairDirections(const G4DynamicParticle* dp,
+				    G4double elecKinEnergy,
+				    G4double posiKinEnergy,
+				    G4ThreeVector& dirElectron,
+				    G4ThreeVector& dirPositron,
+				    G4int Z = 0,
+				    const G4Material* mat = nullptr) final;
+
+  virtual void PrintGeneratorInformation() const final;
+
+  // hide assignment operator 
+  G4ModifiedMephi & operator=(const  G4ModifiedMephi &right) = delete;
+  G4ModifiedMephi(const  G4ModifiedMephi&) = delete;
+
+private:
+
+  G4double SampleCosTheta(G4double primKinEnergy, G4double gEnergy,
+                          G4double mass);
+
+};
+
+#endif
+