Gabriele Cosmo
161 lines
7.5 KiB
C++
161 lines
7.5 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
/// \file Par02FastSimModelTracker.cc
|
|
/// \brief Implementation of the Par02FastSimModelTracker class
|
|
|
|
#include "Par02FastSimModelTracker.hh"
|
|
#include "Par02EventInformation.hh"
|
|
#include "Par02PrimaryParticleInformation.hh"
|
|
#include "Par02Smearer.hh"
|
|
#include "Par02Output.hh"
|
|
|
|
#include "G4Track.hh"
|
|
#include "G4Event.hh"
|
|
#include "G4RunManager.hh"
|
|
#include "g4root.hh"
|
|
|
|
#include "Randomize.hh"
|
|
|
|
#include "G4Electron.hh"
|
|
#include "G4Positron.hh"
|
|
#include "G4Gamma.hh"
|
|
|
|
#include "G4PathFinder.hh"
|
|
#include "G4FieldTrack.hh"
|
|
#include "G4FieldTrackUpdator.hh"
|
|
#include "G4SystemOfUnits.hh"
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
Par02FastSimModelTracker::Par02FastSimModelTracker( G4String aModelName,
|
|
G4Region* aEnvelope, Par02DetectorParametrisation::Parametrisation aType ) :
|
|
G4VFastSimulationModel( aModelName, aEnvelope ), fCalculateParametrisation(),
|
|
fParametrisation( aType ) {}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
Par02FastSimModelTracker::Par02FastSimModelTracker( G4String aModelName,
|
|
G4Region* aEnvelope ) :
|
|
G4VFastSimulationModel( aModelName, aEnvelope ), fCalculateParametrisation(),
|
|
fParametrisation( Par02DetectorParametrisation::eCMS ) {}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
Par02FastSimModelTracker::Par02FastSimModelTracker( G4String aModelName ) :
|
|
G4VFastSimulationModel( aModelName ), fCalculateParametrisation(),
|
|
fParametrisation( Par02DetectorParametrisation::eCMS ) {}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
Par02FastSimModelTracker::~Par02FastSimModelTracker() {}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
G4bool Par02FastSimModelTracker::IsApplicable( const G4ParticleDefinition&
|
|
aParticleType ) {
|
|
return aParticleType.GetPDGCharge() != 0; // Applicable for all charged particles
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
G4bool Par02FastSimModelTracker::ModelTrigger( const G4FastTrack& /*aFastTrack*/ ) {
|
|
return true; // No kinematical restrictions to apply the parametrisation
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|
|
void Par02FastSimModelTracker::DoIt( const G4FastTrack& aFastTrack,
|
|
G4FastStep& aFastStep ) {
|
|
|
|
G4cout << " ________Tracker model triggered _________" << G4endl;
|
|
|
|
// Calculate the final position (at the outer boundary of the tracking detector)
|
|
// of the particle with the momentum at the entrance of the tracking detector.
|
|
|
|
G4Track track = * aFastTrack.GetPrimaryTrack();
|
|
G4FieldTrack aFieldTrack( '0' );
|
|
G4FieldTrackUpdator::Update( &aFieldTrack, &track );
|
|
|
|
G4double retSafety = -1.0;
|
|
ELimited retStepLimited;
|
|
G4FieldTrack endTrack( 'a' );
|
|
G4double currentMinimumStep = 10.0*m; // Temporary: change that to sth connected
|
|
// to particle momentum.
|
|
G4PathFinder* fPathFinder = G4PathFinder::GetInstance();
|
|
/*G4double lengthAlongCurve = */
|
|
fPathFinder->ComputeStep( aFieldTrack,
|
|
currentMinimumStep,
|
|
0,
|
|
aFastTrack.GetPrimaryTrack()->GetCurrentStepNumber(),
|
|
retSafety,
|
|
retStepLimited,
|
|
endTrack,
|
|
aFastTrack.GetPrimaryTrack()->GetVolume() );
|
|
|
|
// Place the particle at the tracking detector exit
|
|
// (at the place it would reach without the change of its momentum).
|
|
aFastStep.ProposePrimaryTrackFinalPosition( endTrack.GetPosition() );
|
|
|
|
// Consider only primary tracks (do nothing else for secondary charged particles)
|
|
G4ThreeVector Porg = aFastTrack.GetPrimaryTrack()->GetMomentum();
|
|
if ( ! aFastTrack.GetPrimaryTrack()->GetParentID() ) {
|
|
Par02EventInformation* info = (Par02EventInformation*)
|
|
G4EventManager::GetEventManager()->GetUserInformation();
|
|
if ( info->GetDoSmearing() ) {
|
|
// Smearing according to the tracking detector resolution
|
|
G4double res = fCalculateParametrisation->
|
|
GetResolution( Par02DetectorParametrisation::eTRACKER,
|
|
fParametrisation, Porg.mag() );
|
|
G4double eff = fCalculateParametrisation->
|
|
GetEfficiency( Par02DetectorParametrisation::eTRACKER,
|
|
fParametrisation, Porg.mag() );
|
|
G4ThreeVector Psm;
|
|
Psm = Par02Smearer::Instance()->
|
|
SmearMomentum( aFastTrack.GetPrimaryTrack(), res );
|
|
Par02Output::Instance()->FillHistogram( 0, ((Psm.mag()/MeV) / (Porg.mag()/MeV)) );
|
|
// Setting the values of Psm, res and eff
|
|
( (Par02PrimaryParticleInformation*) ( const_cast< G4PrimaryParticle* >
|
|
( aFastTrack.GetPrimaryTrack()->GetDynamicParticle()->GetPrimaryParticle() )->
|
|
GetUserInformation() ) )->SetTrackerMomentum( Psm );
|
|
( (Par02PrimaryParticleInformation*) ( const_cast< G4PrimaryParticle* >
|
|
( aFastTrack.GetPrimaryTrack()->GetDynamicParticle()->GetPrimaryParticle() )->
|
|
GetUserInformation() ) )->SetTrackerResolution( res );
|
|
( (Par02PrimaryParticleInformation*) ( const_cast< G4PrimaryParticle* >
|
|
( aFastTrack.GetPrimaryTrack()->GetDynamicParticle()->GetPrimaryParticle() )->
|
|
GetUserInformation() ) )->SetTrackerEfficiency( eff );
|
|
} else {
|
|
// No smearing: simply setting the value of Porg
|
|
( (Par02PrimaryParticleInformation*) ( const_cast< G4PrimaryParticle* >
|
|
( aFastTrack.GetPrimaryTrack()->GetDynamicParticle()->GetPrimaryParticle() )->
|
|
GetUserInformation() ) )->SetTrackerMomentum( Porg );
|
|
}
|
|
}
|
|
}
|
|
|
|
//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
|
|
|