G4HadronStoppingProcess.hh

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00025 //
00026 // $Id$
00027 //
00028 //---------------------------------------------------------------------
00029 //
00030 // GEANT4 Class header file
00031 //
00032 // File name:     G4HadronStoppingProcess
00033 //
00034 // Author V.Ivanchenko 21 April 2012 on base of G4MuonMinusCaptureAtRest
00035 //
00036 //
00037 // Class Description:
00038 //
00039 // Base process class for nuclear capture of negatively charged particles
00040 //
00041 // Modifications: 
00042 //  20120928  M. Kelsey -- Add GetMeanLifeTime() here, instead of in base.
00043 //  20121004  K. Genser -- defined two argument constructor with defaults
00044 //  20121016  K. Genser -- Reverting to use one argument c'tor
00045 //
00046 //------------------------------------------------------------------------
00047 
00048 #ifndef G4HadronStoppingProcess_h
00049 #define G4HadronStoppingProcess_h 1
00050  
00051 #include "globals.hh"
00052 #include "G4HadronicProcess.hh"
00053 #include "G4ParticleDefinition.hh"
00054 #include "G4ElementSelector.hh"
00055 #include "G4HadronicInteraction.hh"
00056 #include "G4Track.hh"
00057 #include "G4Step.hh"
00058 #include "G4ForceCondition.hh"
00059 #include "G4HadronicProcessType.hh"
00060 #include "G4HadFinalState.hh"
00061 
00062 class G4HadronStoppingProcess : public G4HadronicProcess
00063 { 
00064 public:
00065  
00066   explicit G4HadronStoppingProcess(const G4String& name = "hadronCaptureAtRest");
00067 
00068   virtual ~G4HadronStoppingProcess();
00069 
00070   virtual G4bool IsApplicable(const G4ParticleDefinition&);
00071 
00072   virtual void PreparePhysicsTable(const G4ParticleDefinition&);
00073 
00074   virtual void BuildPhysicsTable(const G4ParticleDefinition&);
00075 
00076   virtual G4double 
00077   AtRestGetPhysicalInteractionLength(const G4Track& track,
00078                                      G4ForceCondition* condition);
00079 
00080   virtual G4double 
00081   PostStepGetPhysicalInteractionLength(const G4Track& track,
00082                                        G4double   previousStepSize,
00083                                        G4ForceCondition* condition);
00084 
00085   virtual G4VParticleChange* AtRestDoIt(const G4Track&, const G4Step&);
00086 
00087   virtual void ProcessDescription(std::ostream& outFile) const;
00088 
00089   inline void SetElementSelector(G4ElementSelector* ptr);
00090 
00091   inline void SetEmCascade(G4HadronicInteraction* ptr);
00092 
00093   inline void SetBoundDecay(G4HadronicInteraction* ptr);
00094 
00095 protected:
00096   // set effective lifetime for at-rest process (default is forced action)
00097   // FIXME: This should be computed by subprocesses via cross-section analogue
00098   G4double GetMeanLifeTime(const G4Track& /*aTrack*/,
00099                            G4ForceCondition* /*condition*/) { return -1.0; }
00100 
00101 private:
00102 
00103   // hide assignment operator as private 
00104   G4HadronStoppingProcess& operator=(const G4HadronStoppingProcess &right);
00105   G4HadronStoppingProcess(const G4HadronStoppingProcess& );
00106 
00107   G4ElementSelector* fElementSelector;
00108 
00109   G4HadronicInteraction* fEmCascade;
00110   G4HadronicInteraction* fBoundDecay;
00111 
00112   // This is shadowing "result" in the cc file and
00113   // looks to be unnecessary.  Removed by DHW, 12 June 2012   
00114   // G4HadFinalState result;   
00115 };
00116 
00117 inline void 
00118 G4HadronStoppingProcess::SetElementSelector(G4ElementSelector* ptr)
00119 {
00120   if(fElementSelector != ptr) {
00121     delete fElementSelector;
00122     fElementSelector = ptr;
00123   }
00124 }
00125 
00126 inline void 
00127 G4HadronStoppingProcess::SetEmCascade(G4HadronicInteraction* ptr)
00128 {
00129   fEmCascade = ptr;
00130 }
00131 
00132 inline void 
00133 G4HadronStoppingProcess::SetBoundDecay(G4HadronicInteraction* ptr)
00134 {
00135   fBoundDecay = ptr;
00136 }
00137 
00138 #endif
00139  
00140 
00141 
00142 
00143 
00144 

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