39 lines
962 B
C++
39 lines
962 B
C++
#ifndef B1PrimaryGeneratorAction_h
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#define B1PrimaryGeneratorAction_h 1
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#include "G4ParticleGun.hh"
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#include "G4VUserPrimaryGeneratorAction.hh"
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#include "globals.hh"
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class G4ParticleGun;
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class G4Event;
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class G4Box;
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/// The primary generator action class with particle gun.
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///
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/// The default kinematic is a 6 MeV gamma, randomly distribued
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/// in front of the phantom across 80% of the (X,Y) phantom size.
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namespace B1 {
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// G4ParticleGun 粒子枪，即辐射源
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class PrimaryGeneratorAction : public G4VUserPrimaryGeneratorAction {
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public:
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PrimaryGeneratorAction();
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~PrimaryGeneratorAction() override;
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// method from the base class
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void GeneratePrimaries(G4Event*) override;
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// method to access particle gun
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const G4ParticleGun* GetParticleGun() const { return fParticleGun; }
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private:
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G4ParticleGun* fParticleGun = nullptr; // pointer a to G4 gun class
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G4Box* fEnvelopeBox = nullptr;
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};
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} // namespace B1
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#endif
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