| Geant4 Cross Reference |
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25 //
26 // author: hoang tran
27
28 #include "PulseAction.hh"
29
30 #include "PulseActionMessenger.hh"
31
32 #include "G4Track.hh"
33 #include "G4UnitsTable.hh"
34 #include "Randomize.hh"
35
36 #include <memory>
37
38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
39
40 PulseAction::PulseAction() : G4UserTrackingAction()
41 {
42 fpPulseInfo = std::make_unique<PulseInfo>(0);
43 fpMessenger = std::make_unique<PulseActionMessenger>(this);
44 Initialize();
45 }
46
47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48
49 PulseInfo::PulseInfo(G4double delayedTime) : G4VUserPulseInfo(), fDelayedTime(delayedTime) {}
50
51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52
53 G4double PulseInfo::GetDelayedTime() const
54 {
55 return fDelayedTime;
56 }
57
58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59
60 PulseInfo::~PulseInfo() = default;
61
62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
63
64 PulseAction::~PulseAction() = default;
65
66 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
67
68 void PulseAction::PreUserTrackingAction(const G4Track* pTrack)
69 {
70 if (fActivePulse) {
71 if (pTrack->GetParentID() == 0) {
72 fDelayedTime = RandomizeInPulse();
73 fpPulseInfo = std::make_unique<PulseInfo>(fDelayedTime);
74
75 G4cout << "Particle comes at : " << G4BestUnit(fpPulseInfo->GetDelayedTime(), "Time")
76 << G4endl;
77 if (fLonggestDelayedTime < fDelayedTime) {
78 fLonggestDelayedTime = fDelayedTime;
79 }
80 }
81 auto pPulseInfo = new PulseInfo(*fpPulseInfo);
82 ((G4Track*)pTrack)->SetUserInformation(pPulseInfo);
83 }
84 }
85
86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
87
88 G4double PulseAction::Interpolate(const std::array<G4double, 5>& data)
89 {
90 G4double e1 = data[0];
91 G4double e2 = data[1];
92 G4double e = data[2];
93 G4double xs1 = data[3];
94 G4double xs2 = data[4];
95 G4double value = 0.;
96 if ((std::log10(e2) - std::log10(e1)) != 0) {
97 G4double a = (std::log10(xs2) - std::log10(xs1)) / (std::log10(e2) - std::log10(e1));
98 G4double b = std::log10(xs2) - a * std::log10(e2);
99 G4double sigma = a * std::log10(e) + b;
100 value = (std::pow(10., sigma));
101 }
102
103 if ((e2 - e1) != 0) {
104 G4double d1 = xs1;
105 G4double d2 = xs2;
106 value = (d1 + (d2 - d1) * (e - e1) / (e2 - e1));
107 }
108 return value;
109 }
110
111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
112
113 void PulseAction::Initialize()
114 {
115 std::ostringstream FileName;
116 FileName << "pulseShape.dat";
117 std::ifstream input(FileName.str().c_str());
118
119 if (!input.is_open()) {
120 G4ExceptionDescription exception;
121 exception << "pulseShape.dat file not found. Please, provide";
122 G4Exception("PulseAction::Initialize()", "PulseAction01", FatalException, exception);
123 }
124
125 fPulseVector.clear();
126 fPulseVector.push_back(0.);
127 while (!input.eof()) {
128 double aTDummy;
129 double pTDummy;
130 input >> aTDummy;
131 if (aTDummy != fPulseVector.back()) {
132 fPulseVector.push_back(aTDummy);
133 }
134 input >> pTDummy;
135 fPulseData[aTDummy] = pTDummy;
136 }
137 }
138
139 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
140
141 G4double PulseAction::RandomizeInPulse()
142 {
143 const G4double minTime = 0.;
144 const G4double maxTime = fPulseLarger; // ns
145
146 G4double MaximumPulse = 0.;
147 G4int nSteps = 50;
148 G4double value(minTime);
149
150 for (G4int i = 0; i < nSteps; i++) {
151 G4double PulseNumber = PulseSpectrum(value);
152 if (PulseNumber >= MaximumPulse) {
153 MaximumPulse = PulseNumber;
154 }
155 value += maxTime / nSteps;
156 }
157
158 G4double selectedPulse = 0.;
159 do {
160 selectedPulse = G4UniformRand() * (maxTime - minTime);
161 } while (G4UniformRand() * MaximumPulse > PulseSpectrum(selectedPulse));
162
163 return selectedPulse;
164 }
165
166 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
167
168 double PulseAction::PulseSpectrum(G4double time)
169 {
170 G4double pulse = 0.;
171 G4double valueT1 = 0;
172 G4double valueT2 = 0;
173 G4double xs1 = 0;
174 G4double xs2 = 0;
175 auto t2 = std::upper_bound(fPulseVector.begin(), fPulseVector.end(), time);
176 auto t1 = t2 - 1;
177 valueT1 = *t1;
178 valueT2 = *t2;
179 xs1 = fPulseData[valueT1];
180 xs2 = fPulseData[valueT2];
181 G4double xsProduct = xs1 * xs2;
182 if (xsProduct != 0.) {
183 std::array<G4double, 5> a = {valueT1, valueT2, time, xs1, xs2};
184 pulse = Interpolate(a);
185 }
186 return pulse;
187 }
188
189 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
190
191 G4double PulseAction::GetLonggestDelayedTime() const
192 {
193 return fLonggestDelayedTime;
194 }
195
196 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
197