Gabriele Cosmo
115 lines
4.3 KiB
C++
115 lines
4.3 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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//
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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 "EventAction.hh"
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#include "G4Step.hh"
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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SteppingAction::SteppingAction(DetectorConstruction* det, EventAction* evt)
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:G4UserSteppingAction(),detector(det),eventAct(evt)
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{
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first = true;
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lvol_world = lvol_module = lvol_layer = lvol_fiber = 0;
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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* step )
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{
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//some initialisation
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//
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if (first) {
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lvol_world = detector->GetLvolWorld();
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lvol_module = detector->GetLvolModule();
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lvol_layer = detector->GetLvolLayer();
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lvol_fiber = detector->GetLvolFiber();
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first = false;
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}
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//if no edep, return
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//
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G4double edep = step->GetTotalEnergyDeposit();
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///if (edep == 0.) return;
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//locate point in geometry
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//
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G4int iModule = 0;
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G4int iLayer = 0;
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G4int iFiber = 0;
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G4TouchableHandle touch1 = step->GetPreStepPoint()->GetTouchableHandle();
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G4LogicalVolume* lvol = touch1->GetVolume()->GetLogicalVolume();
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if (lvol == lvol_world) return;
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else if (lvol == lvol_module) { iModule = touch1->GetCopyNumber(0);}
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else if (lvol == lvol_layer) { iLayer = touch1->GetCopyNumber(0);
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iModule = touch1->GetCopyNumber(1);}
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else if (lvol == lvol_fiber) { iFiber = touch1->GetCopyNumber(0);
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iLayer = touch1->GetCopyNumber(1);
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iModule = touch1->GetCopyNumber(2);}
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// sum edep
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//
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eventAct->SumDeStep(iModule, iLayer, iFiber, edep);
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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G4double SteppingAction::BirksAttenuation(const G4Step* aStep)
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{
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//Example of Birk attenuation law in organic scintillators.
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//adapted from Geant3 PHYS337. See MIN 80 (1970) 239-244
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//
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G4Material* material = aStep->GetTrack()->GetMaterial();
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G4double birk1 = material->GetIonisation()->GetBirksConstant();
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G4double destep = aStep->GetTotalEnergyDeposit();
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G4double stepl = aStep->GetStepLength();
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G4double charge = aStep->GetTrack()->GetDefinition()->GetPDGCharge();
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//
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G4double response = destep;
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if (birk1*destep*stepl*charge != 0.)
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{
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response = destep/(1. + birk1*destep/stepl);
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}
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return response;
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}
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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