ECCE @ EIC Software
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
DMXMaxTimeCuts.cc
Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file DMXMaxTimeCuts.cc
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // --------------------------------------------------------------
28 // GEANT 4 - Underground Dark Matter Detector Advanced Example
29 //
30 // For information related to this code contact: Alex Howard
31 // e-mail: alexander.howard@cern.ch
32 // --------------------------------------------------------------
33 // Comments
34 //
35 // Underground Advanced
36 // by A. Howard and H. Araujo
37 // (27th November 2001)
38 //
39 // MaxTimeCuts program
40 // --------------------------------------------------------------
41 
42 #include "DMXMaxTimeCuts.hh"
43 
44 #include "G4PhysicalConstants.hh"
45 #include "G4Step.hh"
46 #include "G4UserLimits.hh"
47 #include "G4VParticleChange.hh"
48 
50  : DMXSpecialCuts(aName)
51 {
52  if (verboseLevel>1) {
53  G4cout << GetProcessName() << " is created "<< G4endl;
54  }
56 }
57 
59 {}
60 
62  : DMXSpecialCuts()
63 {}
64 
65 
67  const G4Track& aTrack,
68  G4double ,
70  )
71 {
72  // condition is set to "Not Forced"
73  *condition = NotForced;
74 
75  G4double proposedStep = DBL_MAX;
76  // get the pointer to UserLimits
77  G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits();
78  const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle();
79 
80  // can apply cuts for specific particles - use if(particleDef):
81  // G4ParticleDefinition* aParticleDef = aTrack.GetDefinition();
82 
83  // G4cout << " Time: " << pUserLimits->GetUserMaxTime(aTrack) << G4endl;
84 
85  if (pUserLimits) {
86  G4double temp = DBL_MAX;
87  //max time limit
88  G4double dTime= (pUserLimits->GetUserMaxTime(aTrack) - aTrack.GetGlobalTime());
89  if (dTime < 0. ) {
90  proposedStep = 0.;
91  } else {
92  G4double beta = (aParticle->GetTotalMomentum())/(aParticle->GetTotalEnergy());
93  temp = beta*c_light*dTime;
94  if (proposedStep > temp) proposedStep = temp;
95  }
96 
97  }
98  return proposedStep;
99 }