| Geant4 Cross Reference |
1 // 1 //
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25 // 25 //
>> 26 // $Id: $
26 // 27 //
27 /// \file Par02Smearer.cc 28 /// \file Par02Smearer.cc
28 /// \brief Implementation of the Par02Smearer 29 /// \brief Implementation of the Par02Smearer class
29 30
30 #include "Par02Smearer.hh" 31 #include "Par02Smearer.hh"
31 <<
32 #include "Par02PrimaryParticleInformation.hh" 32 #include "Par02PrimaryParticleInformation.hh"
33 <<
34 #include "G4FieldManager.hh" <<
35 #include "G4PrimaryParticle.hh" 33 #include "G4PrimaryParticle.hh"
>> 34 #include "G4UnitsTable.hh"
36 #include "G4SystemOfUnits.hh" 35 #include "G4SystemOfUnits.hh"
37 #include "G4TransportationManager.hh" 36 #include "G4TransportationManager.hh"
>> 37 #include "G4FieldManager.hh"
38 #include "G4UniformMagField.hh" 38 #include "G4UniformMagField.hh"
39 #include "G4UnitsTable.hh" <<
40 <<
41 #include <ctime> 39 #include <ctime>
42 40
43 //....oooOO0OOooo........oooOO0OOooo........oo 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
44 42
45 Par02Smearer* Par02Smearer::fPar02Smearer = nu << 43 Par02Smearer* Par02Smearer::fPar02Smearer = 0;
46 44
47 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48 46
49 Par02Smearer::Par02Smearer() << 47 Par02Smearer::Par02Smearer() {
50 { << 48 time_t seed = time( NULL );
51 time_t seed = time(NULL); << 49 fRandomEngine = new CLHEP::HepJamesRandom( static_cast< long >( seed ) );
52 fRandomEngine = new CLHEP::HepJamesRandom(st << 50 fRandomGauss = new CLHEP::RandGauss( fRandomEngine );
53 fRandomGauss = new CLHEP::RandGauss(fRandomE <<
54 } 51 }
55 52
56 //....oooOO0OOooo........oooOO0OOooo........oo 53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 54
58 Par02Smearer::~Par02Smearer() = default; << 55 Par02Smearer::~Par02Smearer() {}
59 56
60 //....oooOO0OOooo........oooOO0OOooo........oo 57 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
61 58
62 Par02Smearer* Par02Smearer::Instance() << 59 Par02Smearer* Par02Smearer::Instance() {
63 { << 60 if ( ! fPar02Smearer ) {
64 if (!fPar02Smearer) { <<
65 fPar02Smearer = new Par02Smearer(); 61 fPar02Smearer = new Par02Smearer();
66 } 62 }
67 return fPar02Smearer; 63 return fPar02Smearer;
68 } 64 }
69 65
70 //....oooOO0OOooo........oooOO0OOooo........oo 66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71 67
72 G4ThreeVector Par02Smearer::SmearMomentum(cons << 68 G4ThreeVector Par02Smearer::SmearMomentum( const G4Track* aTrackOriginal,
73 { << 69 G4double aResolution ) {
74 return SmearGaussian(aTrackOriginal, aResolu << 70 return SmearGaussian( aTrackOriginal, aResolution );
75 } 71 }
76 72
77 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
78 74
79 G4double Par02Smearer::SmearEnergy(const G4Tra << 75 G4double Par02Smearer::SmearEnergy( const G4Track* aTrackOriginal,
80 { << 76 G4double aResolution ) {
81 G4double newE = -1.0; 77 G4double newE = -1.0;
82 while (newE < 0.0) { // To ensure that the << 78 while ( newE < 0.0 ) { // To ensure that the resulting value is not negative
83 // (vital for energy s << 79 // (vital for energy smearing, does not change direction
84 // for momentum smeari << 80 // for momentum smearing)
85 if (aResolution != -1.0) { << 81 if ( aResolution != -1.0 ) {
86 newE = aTrackOriginal->GetKineticEnergy( << 82 newE = aTrackOriginal->GetKineticEnergy() * Gauss( 1.0, aResolution );
87 } << 83 } else {
88 else { <<
89 newE = aTrackOriginal->GetKineticEnergy( 84 newE = aTrackOriginal->GetKineticEnergy();
90 } 85 }
91 } 86 }
92 return newE; 87 return newE;
93 } 88 }
94 89
95 //....oooOO0OOooo........oooOO0OOooo........oo 90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
96 91
97 G4ThreeVector Par02Smearer::SmearGaussian(cons << 92 G4ThreeVector Par02Smearer::SmearGaussian( const G4Track* aTrackOriginal,
98 { << 93 G4double aResolution ) {
99 G4ThreeVector originP = aTrackOriginal->GetM 94 G4ThreeVector originP = aTrackOriginal->GetMomentum();
100 G4ThreeVector originPos = aTrackOriginal->Ge 95 G4ThreeVector originPos = aTrackOriginal->GetPosition();
101 G4double rdm = Gauss(1.0, aResolution); << 96 G4double rdm = Gauss( 1.0, aResolution );
102 G4ThreeVector smearedMom(originP.x() * rdm, << 97 G4ThreeVector smearedMom( originP.x()*rdm, originP.y()*rdm, originP.z()*rdm );
103 return smearedMom; 98 return smearedMom;
104 } 99 }
105 100
106 //....oooOO0OOooo........oooOO0OOooo........oo 101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
107 102
108 G4double Par02Smearer::Gauss(G4double aMean, G << 103 G4double Par02Smearer::Gauss( G4double aMean, G4double aStandardDeviation ) {
109 { << 104 return fRandomGauss->fire( aMean, aStandardDeviation );
110 return fRandomGauss->fire(aMean, aStandardDe <<
111 } 105 }
112 106
113 //....oooOO0OOooo........oooOO0OOooo........oo 107 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 108
114 109