Implementation of Spin Rotator.

geant4/spin_rot/include/sr1PrimaryGeneratorAction.hh

@@ -0,0 +1,69 @@
+#ifndef sr1PrimaryGeneratorAction_h
+#define sr1PrimaryGeneratorAction_h 1
+
+#include "G4VUserPrimaryGeneratorAction.hh"
+#include "globals.hh"
+#include "Randomize.hh"
+#include "G4ThreeVector.hh"
+#include <stdio.h>
+//cksdel #include "sr1ParticleGun.hh"
+
+class G4ParticleGun;
+class G4Event;
+class sr1DetectorConstruction;
+class sr1PrimaryGeneratorMessenger;
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+class sr1PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction
+{
+  public:
+    sr1PrimaryGeneratorAction(sr1DetectorConstruction*);   
+   ~sr1PrimaryGeneratorAction();
+
+  public:
+    void GeneratePrimaries(G4Event*);
+    void SetRndmFlag(G4String val)          {rndmFlag = val;}
+    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 SetEnergy(G4double val)            {p0=std::sqrt(val*val + 2*mu_mass*val);}   // {E0=val;}
+    void SetMomentum(G4double val)          {p0=val;}
+    void SetMomentumSmearing(G4double val)  {pSigma=val;}
+    void SetMomentumBoundary(G4ThreeVector v){pMinAllowed=v[0]; pMaxAllowed=v[1];}
+    void SetTilt(G4ThreeVector v)           {xangle0=v[0]; yangle0=v[1];}
+    void SetSigmaTilt(G4ThreeVector v)      {xangleSigma=v[0]; yangleSigma=v[1];}
+    void SetPitch(G4double val)             {pitch=val;}
+    void SetInitialMuonPolariz(G4ThreeVector vIniPol);
+    void SetMuonDecayTimeLimits(G4ThreeVector decayTimeLimits);
+    void SetTurtleInput(G4String turtleFileName);
+
+    static G4String GetPrimaryName();  
+
+  private:
+    G4ParticleGun*                 particleGun;  // Pointer a to G4 service class
+    sr1DetectorConstruction*      sr1Detector; // Pointer to the geometry
+    sr1PrimaryGeneratorMessenger* gunMessenger; // Messenger of this class
+    G4String                       rndmFlag;     // Flag for a random impact point       
+    
+    G4double x0, y0, z0, xSigma, ySigma, zSigma, rMaxAllowed, zMinAllowed, zMaxAllowed;
+    G4double E0, p0, pSigma, pMinAllowed, pMaxAllowed;
+    G4double xangle0, yangle0, xangleSigma, yangleSigma, pitch;
+    G4bool   UnpolarisedMuonBeam;
+    G4double xPolarisIni, yPolarisIni, zPolarisIni;
+    G4double muonDecayTimeMin;
+    G4double muonDecayTimeMax;
+    G4double muonMeanLife;
+    G4double mu_mass;
+    
+    // For Turtle input
+    FILE*    fTurtleFile;
+    G4bool   takeMuonsFromTurtleFile;
+    
+    static G4String thePrimaryParticleName;
+  
+  public: 
+    G4double decaytime;
+};
+
+#endif