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