underground_physics/src/DMXPrimaryGeneratorAction.cc

0001 //
0002 // ********************************************************************
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0025 //
0026 //
0027 // --------------------------------------------------------------
0028 //   GEANT 4 - Underground Dark Matter Detector Advanced Example
0029 //
0030 //      For information related to this code contact: Alex Howard
0031 //      e-mail: alexander.howard@cern.ch
0032 // --------------------------------------------------------------
0033 // Comments
0034 //
0035 //                  Underground Advanced
0036 //               by A. Howard and H. Araujo
0037 //                    (27th November 2001)
0038 //
0039 //
0040 // PrimaryGeneratorAction program
0041 // --------------------------------------------------------------
0042
0043 #include "DMXPrimaryGeneratorAction.hh"
0044
0045 #ifdef DMXENV_GPS_USE
0046 #include "G4GeneralParticleSource.hh"
0047 #else
0048 #include "DMXParticleSource.hh"
0049 #endif
0050
0051 #include "G4AnalysisManager.hh"
0052 #include "G4Event.hh"
0053
0054 #include "Randomize.hh"
0055
0056 #include "globals.hh"
0057
0058
0059 DMXPrimaryGeneratorAction::DMXPrimaryGeneratorAction() {
0060
0061 #ifdef DMXENV_GPS_USE
0062   particleGun = new G4GeneralParticleSource();
0063 #else
0064   particleGun = new DMXParticleSource();
0065 #endif
0066
0067   energy_pri=0;
0068   //  seeds=NULL;
0069   seeds[0] =-1;
0070   seeds[1] =-1;
0071
0072 }
0073
0074 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0075
0076 DMXPrimaryGeneratorAction::~DMXPrimaryGeneratorAction() {
0077
0078   delete particleGun;
0079 }
0080
0081 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0082
0083 void DMXPrimaryGeneratorAction::GeneratePrimaries(G4Event* anEvent) {
0084
0085   energy_pri = 0.;
0086
0087   // seeds
0088   seeds[0] = *G4Random::getTheSeeds();
0089   seeds[1] = *(G4Random::getTheSeeds()+1);
0090
0091   particleGun->GeneratePrimaryVertex(anEvent);
0092
0093   energy_pri = particleGun->GetParticleEnergy();
0094
0095   //Fill ntuple #1
0096   G4AnalysisManager* man = G4AnalysisManager::Instance();
0097   man->FillNtupleDColumn(1,0,energy_pri);
0098   man->AddNtupleRow(1);
0099 }
0100
0101