Moved Tao's code to TaoLEMuSR.
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shiroka
272
geant4/TaoLEMuSR/src/AsymCheck.cc
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272
geant4/TaoLEMuSR/src/AsymCheck.cc
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//*
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// LOW ENERGY MUON SPIN RELAXATION, ROTATION, RADIATION
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//
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// ID : AsymCheck.cc , v 1.3
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// AUTHOR: Taofiq PARAISO
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// DATE : 2006-01-19 15:17
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
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//
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// & &&&&&&&&&& &&&&&&& &&&&&&&&
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// & & && && & &&
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// & & & & & & &&
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// & &&&&&&& & & &&&&&& &&&&&&&&
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// & & & && & & &&
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// & & && & & && && & &
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// &&&&&&&&&& &&&&&&&&&& & &&&&& && &&&&&&& & &&
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// &
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// &
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// &
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// &
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// ASYMCHECK
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//$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$//
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#include "AsymCheck.hh"
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#include "G4SteppingManager.hh"
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#include "G4Transform3D.hh"
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#include "G4DynamicParticle.hh"
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#include "G4UnitsTable.hh"
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#include "LEMuSRMuonDecayChannel.hh"
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#include "G4MuonDecayChannelWithSpin.hh"
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AsymCheck::AsymCheck()
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{
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A=0;L=0;R=0;
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BR1=BR2=dm1=dm2=0;
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BookRoot();
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pointer=this ;
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}
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AsymCheck::~AsymCheck()
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{
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PrintAsym();
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WriteRoot();
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}
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AsymCheck* AsymCheck::pointer=0;
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AsymCheck* AsymCheck::GetInstance()
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{
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return pointer;
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}
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void AsymCheck::UserSteppingAction(const G4Step* aStep)
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{
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SetParticleVolumeNames(aStep);
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if(CheckCondition(aStep))
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{
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SetPositionMomentum(aStep);
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SetTimeEnergy(aStep);
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SetAngles(aStep);
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SetSpinDirection(aStep);
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Update();
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FillRoot();
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// PrintDatas(aStep);
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PrintAsym();
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}
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}
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G4bool AsymCheck::CheckCondition(const G4Step* aStep)
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{
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G4bool condition=false;
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if (v_name == "lv_AsymL" ||v_name == "lv_AsymR")
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{
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if(p_name == "e+")
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{
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if( aStep->GetTrack()->GetCreatorProcess())
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{
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if( aStep->GetTrack()->GetCreatorProcess()->GetProcessName()=="Decay"|| aStep->GetTrack()->GetCreatorProcess()->GetProcessName()=="DecayWithSpin")
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{
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condition=true;
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}
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}
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}
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}
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return condition;
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}
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void AsymCheck::SetAngles(const G4Step* aStep)
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{
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m=aStep->GetPreStepPoint()->GetMomentumDirection();
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p= aStep->GetTrack()->GetDynamicParticle()->GetPolarization();
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m.rotateUz(G4ThreeVector(-1.,0.,0.));
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p.rotateUz(G4ThreeVector(-1.,0.,0.));
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theta = m.theta(p);
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if (m.x()<0)phi = acos(m.x()/sin(theta))*(-1.);
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else if (m.x()>=0)phi = acos(m.x()/sin(theta))*(+1.);
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}
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void AsymCheck::SetParticleVolumeNames(const G4Step* aStep)
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{
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p_name = aStep->GetTrack()->GetDefinition()->GetParticleName(); // particle name
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v_name = aStep->GetTrack()->GetVolume()->GetLogicalVolume()->GetName(); //lv_name
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pv_name = aStep->GetTrack()->GetVolume()->GetName(); //lv_name
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}
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void AsymCheck::SetPositionMomentum(const G4Step* aStep)
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{
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// POSITION, MOMENTUM
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position = aStep->GetPreStepPoint()->GetPosition(); // position
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momentum = aStep->GetPreStepPoint()->GetMomentum(); // momentum
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momentum_direction = aStep->GetPreStepPoint()->GetMomentumDirection(); // momentum
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if(position.x()>0) L++;
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else if(position.x()<0) R++;
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}
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void AsymCheck::SetTimeEnergy(const G4Step* aStep)
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{
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// ENERGY
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kenergy= aStep->GetTrack()->GetDynamicParticle()->GetKineticEnergy(); // position
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tenergy= aStep->GetTrack()->GetDynamicParticle()->GetTotalEnergy(); // position
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// TIME
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localtime = aStep->GetTrack()->GetLocalTime(); // time since track creation
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globaltime = aStep->GetPreStepPoint()->GetGlobalTime();// time since event creation
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proptime = aStep->GetTrack()->GetProperTime(); // proper time of the particle
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time = proptime;
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positron.kenergy =kenergy ;
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}
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void AsymCheck::SetSpinDirection(const G4Step* aStep)
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{
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polarization = aStep->GetTrack()->GetDynamicParticle()->GetPolarization();
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// G4cout <<"Polarization " << polarization <<G4endl;
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spin.omegat = acos(polarization.x());
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spin.time = aStep->GetPreStepPoint()->GetGlobalTime();
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}
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void AsymCheck::Update()
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{
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positron.kenergy =kenergy/MeV ;
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positron.tenergy =tenergy;
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positron.localtime =localtime ;
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positron.globaltime =globaltime/ns ;
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positron.proptime = proptime ;
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positron.theta = theta/rad ;
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positron.phi = phi/rad;
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positron.positionx = position.x()/mm;
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positron.positiony = position.y()/mm;
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positron.positionz = position.z()/mm;
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positron.momdirx= momentum_direction.x()/mm;
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positron.momdiry= momentum_direction.y()/mm;
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positron.momdirz= momentum_direction.z()/mm;
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positron.ID=G4RunManager::GetRunManager()->GetCurrentRun()->GetRunID();
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}
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// PRINT VALUES
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void AsymCheck::PrintAsym()
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{
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A = (L-R)/(L+R);
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asym.asym=A;
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asym.L=L;
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asym.R=R;
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asym.S=L+R;
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G4cout <<"\n Left/Right Asymmetry: L vs R = " << L <<" vs " << R <<" => A = " << A <<" for "<< L+R <<" particles.\n"<<G4endl;
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}
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void AsymCheck::PrintDatas(const G4Step* aStep)
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{
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if( aStep->GetTrack()->GetCreatorProcess())
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{
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G4cout << "NOT PRIMARY PARTICLE : created by : " << aStep->GetTrack()->GetCreatorProcess()->GetProcessName() <<" ;\n ";
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}
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G4cout << "particle name : " << p_name <<" ;\n "
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<< "volume name : " << v_name <<" ;\n "
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<< "kinetic energy : " << G4BestUnit(kenergy,"Energy") <<" ;\n "
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<< "total energy : " << G4BestUnit(tenergy,"Energy") <<" ;\n "
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<< "current energy : " << G4BestUnit(aStep->GetPreStepPoint()->GetTotalEnergy(),"Energy") <<" ;\n "
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<< "Time (l,g,p) : " << G4BestUnit(localtime,"Time") <<" ; "
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<< G4BestUnit(globaltime,"Time")<<" ; "
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<< G4BestUnit(proptime,"Time") <<" ;\n "
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<< "position : " << position <<" ;\n "
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<< "momentum : " << momentum <<" ;\n "
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<< "momentum direction: " << momentum_direction<<" ;\n "
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<< "theta angle : " << theta <<" ;\n "
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<< "phi angle : " << phi <<" ;\n "
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<<G4endl;
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}
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//----------------------------------------------------------------------------------------//
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// ROOT
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void AsymCheck::BookRoot()
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{
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myFile = new TFile("Test.root", "RECREATE");
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tree = new TTree ("tree","Positrons parameters");
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tree->Branch("positron",&positron.kenergy,"kenergy/F:tenergy/F:localtime/F:globaltime:propertime/F:theta:phi:positionx/F:positiony:positionz:momdirx:momdiry:momdirz/F:runID/I");
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tree->Branch("Asymetry",&asym.asym,"Asym/F:L:R:S");
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tree->Branch("spin",&spin.omegat,"omegat/F:time");
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}
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void AsymCheck::FillRoot()
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{
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tree->Fill();
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// tree->Scan();
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}
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void AsymCheck::WriteRoot()
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{
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myFile->Write();
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myFile->Close();
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}
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