Moved Tao's code to TaoLEMuSR.

geant4/TaoLEMuSR/include/LEMuSRParticleGun.hh

@@ -0,0 +1,71 @@
+//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//*
+//             LOW ENERGY MUON SPIN RELAXATION, ROTATION, RADIATION 
+//
+//  ID    : LEMuSRParticleGun.hh , v 1.2
+//  AUTHOR: Taofiq PARAISO
+//  DATE  : 2004-08-20 10:48
+//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
+//
+//  &           &&&&&&&&&&                            &&&&&&&         &&&&&&&&
+//  &           &                                   &&      &&       &       &&
+//  &           &                   &      &       &                &       &&
+//  &           &&&&&&&            &      &         &&&&&&         &&&&&&&&  
+//  &           &                 &      &&                &      &      &&
+//  &           &                &&     &  &     &&      &&      &        &
+//  &&&&&&&&&&  &&&&&&&&&&      &  &&&&&    &&    &&&&&&&       &        &&   
+//                             &
+//                            &
+//                           &
+//                         &  
+//                          PARTICLE GUN
+//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
+
+#ifndef LEMuSRParticleGun_h
+#define  LEMuSRParticleGun_h 1
+
+#include "G4ParticleGun.hh"
+#include "G4Event.hh"
+#include "G4PrimaryParticle.hh"
+
+class LEMuSRParticleGunMessenger;
+#include"G4ParticleGunMessenger.hh"
+
+/*!
+ * The LEMuSRParticleGun is the class which stores the initial settings of the particles.  
+ * Its interplay with the LEMuSRPrimaryGeneratorAction (PGA) is very strong. 
+ * Indeed, the particle gun object is instanciated  and initialized in the PGA. 
+ * 
+ * After this initialization, the PGA calls the particle gun's GeneratePrimaryVertex method
+ * to create an event with the defined initial conditions.
+ *
+ * As an image one can think that the PGA loads the gun with some defined particles, 
+ * set the shooting energy, aims and fires. Hence the name.
+ */
+class  LEMuSRParticleGun: public G4ParticleGun
+{
+public:
+  //!\ct
+  LEMuSRParticleGun();
+  //!\dt
+  ~LEMuSRParticleGun();
+
+  //! Creates the first event.
+ void GeneratePrimaryVertex(G4Event* evt);
+
+  //! Assign a decay time
+  inline void SetDecayTime(G4double d) {decaytime = d;} 
+
+  G4double decaytime;
+
+
+protected:
+  //! Default initialization of the gun.
+  void SetInitialValues();
+
+ private:
+  //! Messenger
+     LEMuSRParticleGunMessenger* theMessenger;
+
+};
+
+#endif