Import Geant4 5.0.0 source tree

2016-06-08 16:57:27 +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.                                    *
+// ********************************************************************
+//
+//
+// -------------------------------------------------------------------
+//
+// GEANT4 Class header file
+//
+//
+// File name:     G4MuIonisationSTD
+//
+// Author:        Laszlo Urban
+// 
+// Creation date: 30.05.1997
+//
+// Modifications: 
+//
+// corrected by L.Urban on 24/09/97
+// corrected by L.Urban on 13/01/98
+// bugs fixed by L.Urban on 02/02/99
+// 10/02/00 modifications , new e.m. structure, L.Urban
+// 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
+// 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
+// 19-09-01 come back to previous process name "hIoni"
+// 29-10-01 all static functions no more inlined  
+// 10-05-02 V.Ivanchenko update to new design
+// 09-12-02 V.Ivanchenko remove warning
+//
+// Class Description: 
+//
+// This class manages the ionisation process for muons.
+// it inherites from G4VContinuousDiscreteProcess via G4VEnergyLossSTD.
+// 
+
+// -------------------------------------------------------------------
+//
+
+#ifndef G4MuIonisationSTD_h
+#define G4MuIonisationSTD_h 1
+
+#include "G4VEnergyLossSTD.hh"
+#include "G4Electron.hh"
+#include "G4Positron.hh"
+#include "globals.hh"
+
+class G4Material;
+
+class G4MuIonisationSTD : public G4VEnergyLossSTD
+{
+
+public:
+
+  G4MuIonisationSTD(const G4String& name = "muIoni");
+
+  ~G4MuIonisationSTD();
+ 
+  G4bool IsApplicable(const G4ParticleDefinition& p) 
+    {return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV);};
+
+  virtual G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
+                                    const G4Material*, G4double cut);
+
+  void PrintInfoDefinition() const;
+  // Print out of the class parameters
+
+protected:
+
+  const G4ParticleDefinition* DefineBaseParticle(const G4ParticleDefinition* p);
+
+  virtual G4double MaxSecondaryEnergy(const G4DynamicParticle* dynParticle);
+
+private:
+
+  void InitialiseProcess();
+
+  // hide assignment operator 
+  G4MuIonisationSTD & operator=(const G4MuIonisationSTD &right);
+  G4MuIonisationSTD(const G4MuIonisationSTD&);
+
+  const G4ParticleDefinition* theParticle;
+  const G4ParticleDefinition* theBaseParticle;
+  G4double    mass;
+  G4double    ratio;
+};
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+inline G4double G4MuIonisationSTD::MinPrimaryEnergy(const G4ParticleDefinition* p,
+                                                    const G4Material*, 
+                                                          G4double cut)
+{
+  G4double x = 0.5*cut/electron_mass_c2;
+  G4double y = electron_mass_c2/mass;
+  G4double g = x*y + sqrt((1. + x)*(1. + x*y*y));
+  return mass*(g - 1.0); 
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+inline G4double G4MuIonisationSTD::MaxSecondaryEnergy(const G4DynamicParticle* dynParticle)
+{
+  G4double gamma= dynParticle->GetKineticEnergy()/mass + 1.0;
+  G4double tmax = 2.0*electron_mass_c2*(gamma*gamma - 1.) /
+                  (1. + 2.0*gamma*ratio + ratio*ratio);
+  
+  return tmax;
+}
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#endif