Kamil Sedlak 2009-05-18

This is the first version of the muSR simulation code (musrSim)
based on the merged codes of Kamil Sedlak and Toni Shiroka.
It should be a running version of the simulation code, however 
it has not been very well tested, therefore it will probably
need some further development.

include/musrMuScatter.hh

@@ -0,0 +1,57 @@
+//  Geant4 simulation for MuSR
+//  AUTHOR: Toni SHIROKA, Paul Scherrer Institut, PSI
+//  DATE  : 2008-05
+//
+
+//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
+//  Muonium "Scattering"
+//  Id    : musrMuScatter.hh, v 1.4
+//  Author: Taofiq PARAISO, T. Shiroka
+//  Date  : 2007-12
+//  Notes : Simplified model for Mu scattering. Spin effects have been excluded.
+//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
+
+/*!
+ * musrMuScatter class defines the Muonium scattering process. It implements a very 
+ * basic model which assumes Muonium looses its electron as soon as it enters any 
+ * material (except for vacuum and CFoil). The class has only a PostStepDoIt method.
+ * The in-flight Muonium spin precession has been supressed. */
+
+#ifndef musrMuScatter_h
+#define musrMuScatter_h 1
+
+#include "G4VDiscreteProcess.hh"
+
+class musrMuScatter : public G4VDiscreteProcess
+{
+ public:
+   musrMuScatter(const G4String& name="MuScatt", // process description
+		G4ProcessType aType = fGeneral);
+  
+  ~musrMuScatter();
+
+  //! \mm The actions are taken at the end of the step.
+  G4VParticleChange* PostStepDoIt(const G4Track&,
+  				  const G4Step&);
+
+  G4double GetMeanFreePath(const G4Track& aTrack,
+			   G4double previousStepSize,
+			   G4ForceCondition* condition);
+  
+  //! The condition for applying the process.
+  G4bool CheckCondition(const G4Step& aStep);
+
+  
+  G4bool   condition;
+  G4double itime, gtime, ftime,deltatime;
+  G4String p_name;
+  G4DynamicParticle *DP;
+  G4ParticleChange  fParticleChange; 
+ 
+  void  PrepareSecondary(const G4Track&);
+  G4Track* aSecondary;
+
+  void InitializeSecondaries(const G4Track&);
+};
+
+#endif