Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 /// \file field/BlineTracer/src/G4BlinePrimary 27 /// \brief Implementation of the G4BlinePrimar 28 // 29 // 30 // 31 // 32 // ------------------------------------------- 33 // 34 // G4BlinePrimaryGeneratorAction implementatio 35 // 36 // ------------------------------------------- 37 // Author: Laurent Desorgher (desorgher@phim.u 38 // Created - 2003-10-06 39 // ------------------------------------------- 40 41 #include "G4BlinePrimaryGeneratorAction.hh" 42 43 #include "G4ChargedGeantino.hh" 44 #include "G4Event.hh" 45 #include "G4SystemOfUnits.hh" 46 #include "G4Types.hh" 47 48 //....oooOO0OOooo........oooOO0OOooo........oo 49 50 void G4BlinePrimaryGeneratorAction::GeneratePr 51 { 52 if (!fUserPrimaryAction) { 53 G4Exception("G4BlinePrimaryGeneratorAction 54 "Primary generator action not 55 return; 56 } 57 58 // For the first part of a bline the start p 59 // by using the USER primary action while fo 60 // values are taken. 61 62 if (fFirstPartOfBline) { 63 // set the position and time defined by us 64 65 auto tmpEvent = new G4Event(); 66 fUserPrimaryAction->GeneratePrimaries(tmpE 67 fBlineStartPosition = tmpEvent->GetPrimary 68 fT0 = tmpEvent->GetPrimaryVertex()->GetT0( 69 delete tmpEvent; 70 } 71 fFirstPartOfBline = false; 72 73 auto primary_vertex = new G4PrimaryVertex(fB 74 75 // Define the particle to be tracked as Char 76 77 G4ChargedGeantino* pdef = G4ChargedGeantino: 78 79 G4double mass = pdef->GetPDGMass(); 80 G4double energy = 10000. * MeV + mass; 81 G4double pmom = std::sqrt(energy * energy - 82 83 // The momentum direction and energy do not 84 // bline but still need to be defined. 85 86 G4double px = 0.; 87 G4double py = 0.; 88 G4double pz = pmom; 89 90 auto particle = new G4PrimaryParticle(pdef, 91 particle->SetMass(mass); 92 particle->SetCharge(pdef->GetPDGCharge()); 93 primary_vertex->SetPrimary(particle); 94 95 anEvent->AddPrimaryVertex(primary_vertex); 96 } 97