Gabriele Cosmo
100 lines
3.7 KiB
C++
100 lines
3.7 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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// --------------------------------------------------------------
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// GEANT 4 - Underground Dark Matter Detector Advanced Example
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//
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// For information related to this code contact: Alex Howard
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// e-mail: alexander.howard@cern.ch
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// --------------------------------------------------------------
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// Comments
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//
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// Underground Advanced
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// by A. Howard and H. Araujo
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// (27th November 2001)
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//
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// MaxTimeCuts program
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// --------------------------------------------------------------
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#include "DMXMaxTimeCuts.hh"
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#include "G4PhysicalConstants.hh"
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#include "G4Step.hh"
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#include "G4UserLimits.hh"
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#include "G4VParticleChange.hh"
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DMXMaxTimeCuts::DMXMaxTimeCuts(const G4String& aName)
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: DMXSpecialCuts(aName)
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{
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if (verboseLevel>1) {
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G4cout << GetProcessName() << " is created "<< G4endl;
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}
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SetProcessType(fUserDefined);
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}
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DMXMaxTimeCuts::~DMXMaxTimeCuts()
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{}
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DMXMaxTimeCuts::DMXMaxTimeCuts(DMXMaxTimeCuts&)
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: DMXSpecialCuts()
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{}
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G4double DMXMaxTimeCuts::PostStepGetPhysicalInteractionLength(
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const G4Track& aTrack,
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G4double ,
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G4ForceCondition* condition
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)
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{
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// condition is set to "Not Forced"
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*condition = NotForced;
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G4double proposedStep = DBL_MAX;
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// get the pointer to UserLimits
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G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits();
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const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
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// can apply cuts for specific particles - use if(particleDef):
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// G4ParticleDefinition* aParticleDef = aTrack.GetDefinition();
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// G4cout << " Time: " << pUserLimits->GetUserMaxTime(aTrack) << G4endl;
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if (pUserLimits) {
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G4double temp = DBL_MAX;
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//max time limit
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G4double dTime= (pUserLimits->GetUserMaxTime(aTrack) - aTrack.GetGlobalTime());
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if (dTime < 0. ) {
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proposedStep = 0.;
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} else {
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G4double beta = (aParticle->GetTotalMomentum())/(aParticle->GetTotalEnergy());
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temp = beta*c_light*dTime;
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if (proposedStep > temp) proposedStep = temp;
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}
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}
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return proposedStep;
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}
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