Import Geant4 11.3.0 source tree

2024-12-06 11:11:40 +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:     G4DynamicParticleMSC
+//
+// Author:        Vladimir Ivanchenko
+//
+// Creation date: 23.08.2024
+//
+// Modifications:
+//
+//
+// Class Description:
+//
+// This class manages the multiple scattering process for heavy charged
+// particles without any use of G4ParticleDefinition.
+//
+// -------------------------------------------------------------------
+//
+
+#ifndef G4DynamicParticleMSC_h
+#define G4DynamicParticleMSC_h 1
+
+#include "G4VContinuousDiscreteProcess.hh"
+#include "G4ParticleChangeForMSC.hh"
+
+class G4Material;
+class G4LossTableManager;
+
+class G4DynamicParticleMSC : public G4VContinuousDiscreteProcess
+{
+public:
+
+  G4DynamicParticleMSC();
+
+  ~G4DynamicParticleMSC() override;
+
+  // Step limit from AlongStep 
+  G4double AlongStepGetPhysicalInteractionLength(
+                                  const G4Track&,
+                                  G4double  previousStepSize,
+                                  G4double  currentMinimumStep,
+                                  G4double& currentSafety,
+                                  G4GPILSelection* selection) override;
+
+  // Step limit from cross section
+  G4double PostStepGetPhysicalInteractionLength(
+                                  const G4Track& track,
+                                  G4double previousStepSize,
+                                  G4ForceCondition* condition) override;
+
+  // AlongStep computations
+  G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&) override;
+
+  // This method is not used for tracking, it returns mean free path value
+  G4double GetMeanFreePath(const G4Track&, G4double, G4ForceCondition* condition) override;
+
+  // This method is not used for tracking, it returns step limit
+  G4double GetContinuousStepLimit(const G4Track& track, G4double previousStepSize,
+                                  G4double currentMinimalStep, G4double& currentSafety) override;
+
+  // print description in html
+  void ProcessDescription(std::ostream&) const override;
+
+  // hide assignment operator
+  G4DynamicParticleMSC & operator=(const G4DynamicParticleMSC &right) = delete;
+  G4DynamicParticleMSC(const G4DynamicParticleMSC&) = delete;
+
+private:
+
+  // all parameters are dynamic
+  void PreStepInitialisation(const G4Track&);
+
+  G4LossTableManager* lManager;
+  const G4Material* fMaterial{nullptr};
+
+  G4double fMass{0.0};
+  G4double fCharge{0.0};
+  G4double fEkinPreStep{0.0};
+  G4double fBeta{0.0};
+  G4double fZeff{0.0};
+
+  G4ThreeVector fNewDir{G4ThreeVector(0.0, 0.0, 0.0)};
+  G4ParticleChangeForMSC fParticleChange;
+};
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#endif