Import Geant4 10.7.0 source tree

2020-12-04 12:30:43 +01:00
parent 67ba86d073
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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:    G4GammaNuclearXS
+//
+// Author  V.Ivantchenko, Geant4, 22 October 2020
+//
+ 
+// Class Description:
+// This is a base class for gamma-nuclear cross section based on
+// data files from G4PARTICLEXSDATA data set 
+// Class Description - End
+
+#ifndef G4GammaNuclearXS_h
+#define G4GammaNuclearXS_h 1
+
+#include "G4VCrossSectionDataSet.hh"
+#include "globals.hh"
+#include "G4PhysicsVector.hh"
+#include "G4Threading.hh"
+#include <vector>
+
+const G4int MAXZEL = 93;
+
+class G4DynamicParticle;
+class G4ParticleDefinition;
+class G4Element;
+
+class G4GammaNuclearXS final : public G4VCrossSectionDataSet
+{
+public: 
+
+  explicit G4GammaNuclearXS();
+
+  ~G4GammaNuclearXS() final;
+    
+  static const char* Default_Name() {return "G4GammaNuclearXS";}
+
+  G4bool IsElementApplicable(const G4DynamicParticle*, 
+			     G4int Z, const G4Material*) final;
+
+  G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
+			 const G4Element*, const G4Material* mat) final;
+
+  G4double GetElementCrossSection(const G4DynamicParticle*, 
+			          G4int Z, const G4Material* mat) final; 
+
+  G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
+                              const G4Isotope* iso,
+                              const G4Element* elm,
+                              const G4Material* mat) final;
+
+  const G4Isotope* SelectIsotope(const G4Element*, 
+                                 G4double kinEnergy, G4double logE) final;
+
+  void BuildPhysicsTable(const G4ParticleDefinition&) final;
+
+  void CrossSectionDescription(std::ostream&) const final;
+
+  G4GammaNuclearXS & operator=(const G4GammaNuclearXS &right) = delete;
+  G4GammaNuclearXS(const G4GammaNuclearXS&) = delete;
+  
+private: 
+
+  void Initialise(G4int Z);
+
+  void InitialiseOnFly(G4int Z);
+
+  const G4String& FindDirectoryPath();
+
+  inline G4PhysicsVector* GetPhysicsVector(G4int Z);
+
+  G4VCrossSectionDataSet* ggXsection;
+  const G4ParticleDefinition* gamma;
+
+  static G4PhysicsVector* data[MAXZEL];
+  static G4double coeff[MAXZEL];
+  static G4String gDataDirectory;
+
+  G4bool  isMaster;
+
+#ifdef G4MULTITHREADED
+  static G4Mutex gNuclearXSMutex;
+#endif
+};
+
+inline
+G4PhysicsVector* G4GammaNuclearXS::GetPhysicsVector(G4int Z)
+{
+  if(nullptr == data[Z]) { InitialiseOnFly(Z); }
+  return data[Z];
+}
+
+#endif