Gabriele Cosmo
120 lines
4.9 KiB
C++
120 lines
4.9 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// $Id: SteppingAction.cc,v 1.6 2007/03/15 15:52:39 maire Exp $
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// GEANT4 tag $Name: geant4-08-03 $
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//
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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#include "SteppingAction.hh"
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#include "DetectorConstruction.hh"
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#include "PrimaryGeneratorAction.hh"
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#include "RunAction.hh"
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#include "HistoManager.hh"
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#include "G4RunManager.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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SteppingAction::SteppingAction(DetectorConstruction* det,
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PrimaryGeneratorAction* prim, RunAction* RuAct,
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HistoManager* Hist)
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:detector(det), primary(prim), runAction(RuAct), histoManager(Hist)
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{ }
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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SteppingAction::~SteppingAction()
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{ }
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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void SteppingAction::UserSteppingAction(const G4Step* aStep)
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{
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G4StepPoint* prePoint = aStep->GetPreStepPoint();
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// if World --> return
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if (prePoint->GetTouchableHandle()->GetVolume()==detector->GetWorld()) return;
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// here we enter in the absorber Box
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// tag the event to be killed anyway after this step
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//
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G4RunManager::GetRunManager()->AbortEvent();
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//count processes and keep only Multiple Scattering
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//
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G4StepPoint* endPoint = aStep->GetPostStepPoint();
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G4String procName = endPoint->GetProcessDefinedStep()->GetProcessName();
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runAction->CountProcesses(procName);
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if (procName != "msc" && procName != "stepMax") return;
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//below, only multiple Scattering happens
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//
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G4ThreeVector position = endPoint->GetPosition();
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G4ThreeVector direction = endPoint->GetMomentumDirection();
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G4double truePathLength = aStep->GetStepLength();
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G4double geomPathLength = position.x() + 0.5*detector->GetBoxSize();
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G4double ratio = geomPathLength/truePathLength;
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runAction->SumPathLength(truePathLength,geomPathLength);
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histoManager->FillHisto(1,truePathLength);
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histoManager->FillHisto(2,geomPathLength);
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histoManager->FillHisto(3,ratio);
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G4double yend = position.y(), zend = position.z();
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G4double lateralDisplacement = std::sqrt(yend*yend + zend*zend);
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runAction->SumLateralDisplacement(lateralDisplacement);
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histoManager->FillHisto(4,lateralDisplacement);
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G4double psi = std::atan(lateralDisplacement/geomPathLength);
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runAction->SumPsi(psi);
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histoManager->FillHisto(5,psi);
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G4double xdir = direction.x(), ydir = direction.y(), zdir = direction.z();
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G4double tetaPlane = std::atan2(ydir, xdir);
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runAction->SumTetaPlane(tetaPlane);
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histoManager->FillHisto(6,tetaPlane);
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tetaPlane = std::atan2(zdir, xdir);
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runAction->SumTetaPlane(tetaPlane);
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histoManager->FillHisto(6,tetaPlane);
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G4double phiPos = std::atan2(zend, yend);
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histoManager->FillHisto(7,phiPos);
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G4double phiDir = std::atan2(zdir, ydir);
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histoManager->FillHisto(8,phiDir);
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G4double phiCorrel = 0.;
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if (lateralDisplacement > 0.)
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phiCorrel = (yend*ydir + zend*zdir)/lateralDisplacement;
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runAction->SumPhiCorrel(phiCorrel);
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histoManager->FillHisto(9,phiCorrel);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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