128 lines
3.7 KiB
C++
128 lines
3.7 KiB
C++
//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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// LOW ENERGY MUON SPIN RELAXATION, ROTATION, RADIATION
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//
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// ID : LEMuSRMUONIUM.hh , v 1.3
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// AUTHOR: Taofiq PARAISO
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// DATE : 2006-01-19 16:15
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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//
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// & &&&&&&&&&& &&&&&&& &&&&&&&&
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// & & && && & &&
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// & & & & & & &&
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// & &&&&&&& & & &&&&&& &&&&&&&&
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// & & & && & & &&
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// & & && & & && && & &
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// &&&&&&&&&& &&&&&&&&&& & &&&&& && &&&&&&& & &&
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// &
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// &
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// &
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// &
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// AT REST SPIN ROTATION
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
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#ifndef LEMuSRMUONIUM_h
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#define LEMuSRMUONIUM_h 1
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#include "G4VDiscreteProcess.hh"
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#include "G4EnergyLossTables.hh"
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#include "G4GPILSelection.hh"
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#include "G4PhysicsLogVector.hh"
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#include "G4VPhysicalVolume.hh"
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#include "G4VParticleChange.hh"
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#include "G4UnitsTable.hh"
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#include "G4MaterialCutsCouple.hh"
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#include "G4ForceCondition.hh"
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#include "G4ParticleTable.hh"
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#include "G4DynamicParticle.hh"
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#include "LEMuSRPrimaryGeneratorAction.hh"
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#include "yields.h"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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/*!
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* LEMuSRMUONIUM class defines the muonium formation process in the carbon foil according
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* to yields from Gonin's paper Sci. Rev. Instrum. 65 (3), 648-652 (1994).
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*
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* \image html yields3.gif The muonium formation yields.
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*
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* The main parameters are the thickness of the foil and the energy of the muon. For a given
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* energy, a corresponding proportion of the muons will be converted into muonium.
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* Concretely, the muon will be killed and replace by a muonium with same properties of time,
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* energy, momentum, position etc.
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*
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* This process is executed at the end of a step, i.e. the muon is converted into muonium after
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* flying through the carbon foil.
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*cf. yields.h, gonin.cc.
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*/
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class LEMuSRMUONIUM : public G4VDiscreteProcess
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{
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public: // with description
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//! \ct
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LEMuSRMUONIUM(const G4String& name="Muformation" ,
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G4ProcessType aType = fElectromagnetic );
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//! \dt
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~LEMuSRMUONIUM();
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//! Main method.
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/*!
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*The muonium formation process is executed at the end of a step.
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*/
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G4VParticleChange* PostStepDoIt(
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const G4Track& ,
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const G4Step&
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);
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G4double GetMeanFreePath(const G4Track& aTrack,
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G4double previousStepSize,
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G4ForceCondition* condition
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);
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//! Condition for process application (step object).
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G4bool CheckCondition( const G4Step& aStep);
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//! Condition for process application (step pointer).
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G4bool CheckCondition( const G4Step* aStep);
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G4String p_name, vname;
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G4double spin, edep, toten, kinen, tof, globaltime, proptime;
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G4ThreeVector hitpos, hitmom;
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G4int ID;
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//! \cbv
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G4bool condition;
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void GetDatas( const G4Step* aStep);
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// model parameters
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G4ParticleTable* particleTable;
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G4ParticleDefinition* particle;
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Yields Gonin;
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G4double yvector[3];
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G4double rnd;
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G4DynamicParticle *DP;
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//! The particle change object.
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G4VParticleChange fParticleChange;
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void PrepareSecondary(const G4Track&);
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G4Track* aSecondary;
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void InitializeSecondaries(const G4Track&);
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};
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#endif
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