Import Geant4 10.4.0.beta source tree

2017-06-30 10:49:55 +02:00
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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.          *
+// ********************************************************************
+//
+// $Id: $
+//---------------------------------------------------------------
+//
+// G4ChannelingOptrChangeCrossSection
+// Based On GB01BOptrChangeCrossSection
+// Class Description:
+//        A G4VBiasingOperator concrete implementation example to
+//    illustrate how to bias physics processes cross-section for
+//    one particle type.
+//        The G4VBiasingOperation G4BOptnChangeCrossSection is
+//    selected by this operator, and is sent to each process
+//    calling the operator.
+//        A simple constant bias to the cross-section is applied,
+//    but more sophisticated changes can be applied.
+//
+//---------------------------------------------------------------
+//
+
+#ifndef G4ChannelingOptrChangeCrossSection_hh
+#define G4ChannelingOptrChangeCrossSection_hh 1
+
+#include "G4VBiasingOperator.hh"
+class G4BOptnChangeCrossSection;
+class G4ParticleDefinition;
+#include <map>
+#include <unordered_map>
+
+enum G4ChannelingDensityRatio{
+    fDensityRatioNotDefined = -1,
+    fDensityRatioNone = 0,
+    fDensityRatioNuDElD = 1,
+    fDensityRatioNuD = 2,
+    fDensityRatioElD = 3
+};
+
+class G4ChannelingOptrChangeCrossSection : public G4VBiasingOperator {
+public:
+    // ------------------------------------------------------------
+    // -- Constructor: takes the name of the particle type to bias:
+    // ------------------------------------------------------------
+    G4ChannelingOptrChangeCrossSection(G4String particleToBias, G4String name = "ChannelingChangeXS");
+    virtual ~G4ChannelingOptrChangeCrossSection();
+    virtual void StartRun();
+    
+private:
+    G4int fChannelingID;
+    
+private:
+    virtual G4VBiasingOperation*
+    ProposeOccurenceBiasingOperation(const G4Track*                            track,
+                                     const G4BiasingProcessInterface* callingProcess);
+    virtual G4VBiasingOperation*
+    ProposeFinalStateBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
+    {return 0;}
+    virtual G4VBiasingOperation*
+    ProposeNonPhysicsBiasingOperation(const G4Track*, const G4BiasingProcessInterface*)
+    {return 0;}
+    
+private:
+    using G4VBiasingOperator::OperationApplied;
+    virtual void OperationApplied( const G4BiasingProcessInterface*                callingProcess,
+                                  G4BiasingAppliedCase                               biasingCase,
+                                  G4VBiasingOperation*                 occurenceOperationApplied,
+                                  G4double                         weightForOccurenceInteraction,
+                                  G4VBiasingOperation*                finalStateOperationApplied,
+                                  const G4VParticleChange*                particleChangeProduced );
+    
+private:
+    std::map< const G4BiasingProcessInterface*,
+    G4BOptnChangeCrossSection*       > fChangeCrossSectionOperations;
+    G4bool                                  fSetup;
+    const G4ParticleDefinition*    fParticleToBias;
+    
+private:
+    std::unordered_map<std::string,G4ChannelingDensityRatio> fProcessToDensity;
+};
+
+#endif