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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4VTransitionRadiation.hh,v 1.3 2006/06/29 19:55:53 gunter Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03 $ |
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29 | // |
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30 | // G4VTransitionRadiation -- header file |
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31 | // |
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32 | // Generic process of transition radiation |
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33 | // |
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34 | // History: |
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35 | // 29.02.04, V.Ivanchenko created |
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36 | // 28.07.05, P.Gumplinger add G4ProcessType to constructor |
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37 | |
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38 | #ifndef G4VTransitionRadiation_h |
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39 | #define G4VTransitionRadiation_h |
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40 | |
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41 | |
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42 | #include "G4VDiscreteProcess.hh" |
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43 | #include "G4Track.hh" |
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44 | #include "G4ForceCondition.hh" |
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45 | #include "globals.hh" |
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46 | #include <vector> |
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47 | |
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48 | class G4Material; |
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49 | class G4Region; |
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50 | class G4VTRModel; |
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51 | class G4particleDefinition; |
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52 | |
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53 | class G4VTransitionRadiation : public G4VDiscreteProcess |
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54 | { |
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55 | public: |
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56 | |
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57 | // Constructors |
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58 | G4VTransitionRadiation( const G4String& processName = "TR", |
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59 | G4ProcessType type = fElectromagnetic); |
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60 | |
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61 | |
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62 | // Destructor |
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63 | virtual ~G4VTransitionRadiation() ; |
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64 | |
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65 | virtual G4bool IsApplicable(const G4ParticleDefinition& aParticleType); |
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66 | |
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67 | virtual G4double GetMeanFreePath(const G4Track& track, G4double, |
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68 | G4ForceCondition* condition); |
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69 | |
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70 | virtual G4VParticleChange* PostStepDoIt(const G4Track& track, |
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71 | const G4Step& step); |
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72 | |
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73 | virtual void PrintInfoDefinition(); |
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74 | // Print out of the class parameters |
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75 | |
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76 | void SetRegion(const G4Region* reg); |
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77 | |
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78 | void SetModel(G4VTRModel* m); |
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79 | |
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80 | // private : |
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81 | |
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82 | void Clear(); |
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83 | |
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84 | // hide assignment operator |
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85 | G4VTransitionRadiation & operator=(const G4VTransitionRadiation &right); |
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86 | G4VTransitionRadiation(const G4VTransitionRadiation&); |
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87 | |
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88 | std::vector<const G4Material*> materials; |
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89 | std::vector<G4double> steps; |
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90 | std::vector<G4ThreeVector> normals; |
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91 | |
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92 | G4ThreeVector startingPosition; |
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93 | G4ThreeVector startingDirection; |
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94 | const G4Region* region; |
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95 | G4VTRModel* model; |
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96 | |
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97 | G4int nSteps; |
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98 | |
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99 | G4double gammaMin; |
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100 | G4double cosDThetaMax; |
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101 | |
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102 | }; |
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103 | |
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104 | inline G4double G4VTransitionRadiation::GetMeanFreePath( |
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105 | const G4Track& track, G4double, |
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106 | G4ForceCondition* condition) |
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107 | { |
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108 | if(nSteps > 0) { |
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109 | *condition = StronglyForced; |
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110 | } else { |
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111 | *condition = NotForced; |
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112 | if(track.GetKineticEnergy()/track.GetDefinition()->GetPDGMass() + 1.0 > gammaMin && |
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113 | track.GetVolume()->GetLogicalVolume()->GetRegion() == region) { |
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114 | *condition = StronglyForced; |
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115 | } |
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116 | } |
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117 | return DBL_MAX; // so TR doesn't limit mean free path |
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118 | } |
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119 | |
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120 | |
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121 | #endif // G4VTransitionRadiation_h |
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