2009-06-22 Kamil Sedlak

- introduced modifications done by Pavel Bakule at ISIS:
       a)  the time when the initial muon is generated can be
           set according to a gaussian or flat distribution.
           (all muons were generated at time 0 before this change).
       b)  a new volume "cylpart" has been added.
   The code can be compiled, but no tests of the newly implemented
   features have been done.  In future, the information about the
   time of the muon generation should be added to the root output
   tree.

include/musrPrimaryGeneratorAction.hh

@@ -52,6 +52,8 @@ class musrPrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
     void Setvertex(G4ThreeVector v)         {x0=v[0]; y0=v[1]; z0=v[2];}
     void SetvertexSigma(G4ThreeVector v)    {xSigma=v[0]; ySigma=v[1]; zSigma=v[2];}
     void SetvertexBoundary(G4ThreeVector v) {rMaxAllowed=v[0]; zMinAllowed=v[1]; zMaxAllowed=v[2];}
+    void SetMuonTime(G4double val)          {t0=val;}     //P.B. 13 May 2009
+    void SetMuonTimeSigma(G4double val)     {tSigma=val;} //P.B. 13 May 2009
     void SetKEnergy(G4double val);
     void SetMomentum(G4double val)          {p0=val;}
     void SetMomentumSmearing(G4double val)  {pSigma=val;}
@@ -94,6 +96,7 @@ class musrPrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
     static G4String thePrimaryParticleName ;
 
     G4double x0, y0, z0, xSigma, ySigma, zSigma, rMaxAllowed, zMinAllowed, zMaxAllowed;
+    G4double t0, tSigma;  //P.B. 13 May 2009
     G4double p0, pSigma, pMinAllowed, pMaxAllowed;
     G4double xangle0, yangle0, xangleSigma, yangleSigma, pitch;
     G4bool   UnpolarisedMuonBeam, TransversalyUnpolarisedMuonBeam;