1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // -------------------------------------------------------------- |
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28 | // GEANT 4 - Underground Dark Matter Detector Advanced Example |
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29 | // |
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30 | // For information related to this code contact: Alex Howard |
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31 | // e-mail: alexander.howard@cern.ch |
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32 | // -------------------------------------------------------------- |
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33 | // Comments |
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34 | // |
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35 | // Underground Advanced |
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36 | // by A. Howard and H. Araujo |
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37 | // (27th November 2001) |
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38 | // |
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39 | // MaxTimeCuts program |
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40 | // -------------------------------------------------------------- |
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41 | |
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42 | #include "DMXMaxTimeCuts.hh" |
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43 | |
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44 | #include "G4Step.hh" |
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45 | #include "G4UserLimits.hh" |
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46 | #include "G4VParticleChange.hh" |
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47 | #include "G4EnergyLossTables.hh" |
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48 | |
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49 | |
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50 | DMXMaxTimeCuts::DMXMaxTimeCuts(const G4String& aName) |
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51 | : DMXSpecialCuts(aName) |
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52 | { |
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53 | if (verboseLevel>1) { |
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54 | G4cout << GetProcessName() << " is created "<< G4endl; |
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55 | } |
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56 | SetProcessType(fUserDefined); |
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57 | } |
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58 | |
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59 | DMXMaxTimeCuts::~DMXMaxTimeCuts() |
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60 | {} |
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61 | |
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62 | DMXMaxTimeCuts::DMXMaxTimeCuts(DMXMaxTimeCuts&) |
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63 | : DMXSpecialCuts() |
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64 | {} |
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65 | |
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66 | |
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67 | G4double DMXMaxTimeCuts::PostStepGetPhysicalInteractionLength( |
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68 | const G4Track& aTrack, |
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69 | G4double , |
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70 | G4ForceCondition* condition |
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71 | ) |
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72 | { |
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73 | // condition is set to "Not Forced" |
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74 | *condition = NotForced; |
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75 | |
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76 | G4double proposedStep = DBL_MAX; |
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77 | // get the pointer to UserLimits |
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78 | G4UserLimits* pUserLimits = aTrack.GetVolume()->GetLogicalVolume()->GetUserLimits(); |
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79 | const G4DynamicParticle* aParticle = aTrack.GetDynamicParticle(); |
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80 | |
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81 | // can apply cuts for specific particles - use if(particleDef): |
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82 | // G4ParticleDefinition* aParticleDef = aTrack.GetDefinition(); |
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83 | |
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84 | // G4cout << " Time: " << pUserLimits->GetUserMaxTime(aTrack) << G4endl; |
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85 | |
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86 | if (pUserLimits) { |
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87 | G4double temp = DBL_MAX; |
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88 | //max time limit |
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89 | G4double dTime= (pUserLimits->GetUserMaxTime(aTrack) - aTrack.GetGlobalTime()); |
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90 | if (dTime < 0. ) { |
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91 | proposedStep = 0.; |
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92 | } else { |
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93 | G4double beta = (aParticle->GetTotalMomentum())/(aParticle->GetTotalEnergy()); |
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94 | temp = beta*c_light*dTime; |
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95 | if (proposedStep > temp) proposedStep = temp; |
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96 | } |
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97 | |
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98 | } |
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99 | return proposedStep; |
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100 | } |
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