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File indexing completed on 2026-11-07 09:43:35
0001 //------------------------------- -*- C++ -*- -------------------------------// 0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details 0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT) 0004 //---------------------------------------------------------------------------// 0005 //! \file accel/PGPrimaryGeneratorAction.hh 0006 //---------------------------------------------------------------------------// 0007 #pragma once 0008 0009 #include <G4Event.hh> 0010 #include <G4ParticleDefinition.hh> 0011 #include <G4ParticleGun.hh> 0012 #include <G4VUserPrimaryGeneratorAction.hh> 0013 0014 #include "corecel/Types.hh" 0015 #include "corecel/cont/Array.hh" 0016 #include "celeritas/phys/PrimaryGenerator.hh" 0017 0018 namespace celeritas 0019 { 0020 //---------------------------------------------------------------------------// 0021 /*! 0022 * Generate events from a particle gun. 0023 * 0024 * This generates primary particles with energy, position, and direction 0025 * sampled from distributions specified by the user in \c 0026 * PrimaryGeneratorOptions. 0027 * 0028 * \sa PrimaryGenerator 0029 */ 0030 class PGPrimaryGeneratorAction final : public G4VUserPrimaryGeneratorAction 0031 { 0032 public: 0033 //!@{ 0034 //! \name Type aliases 0035 using Input = inp::CorePrimaryGenerator; 0036 //!@} 0037 0038 public: 0039 // Construct primary action 0040 explicit PGPrimaryGeneratorAction(Input const& opts); 0041 0042 // Generate events 0043 void GeneratePrimaries(G4Event* event) final; 0044 0045 private: 0046 using GeneratorImpl = celeritas::PrimaryGenerator; 0047 0048 std::vector<PDGNumber> pdg_; 0049 GeneratorImpl generate_primaries_; 0050 G4ParticleGun gun_; 0051 }; 0052 0053 //---------------------------------------------------------------------------// 0054 } // namespace celeritas
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