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23 // ********************************************************************
24 //
25 // ********************************************************************
26 //
27 // CaTS (Calorimetry and Tracking Simulation)
28 //
29 // Authors : Hans Wenzel
30 // Soon Yung Jun
31 // (Fermi National Accelerator Laboratory)
32 //
33 // History
34 // October 18th, 2021 : first implementation
35 //
36 // ********************************************************************
37 //
38 /// \file RadiatorSD.cc
39 /// \brief Implementation of the CaTS::RadiatorSD class
40
41 // Geant4 headers
42 #include "G4Step.hh"
43 #include "G4Track.hh"
44 #ifdef WITH_G4OPTICKS
45 # include "G4ThreeVector.hh"
46 # include "G4ios.hh"
47 # include "G4UnitsTable.hh"
48 # include "G4SystemOfUnits.hh"
49 # include "G4VProcess.hh"
50 # include "G4VRestDiscreteProcess.hh"
51 # include "G4SDManager.hh"
52 # include "G4HCofThisEvent.hh"
53 # include "G4Opticks.hh"
54 # include "TrackInfo.hh"
55 # include "OpticksGenstep.h"
56 # include "OpticksFlags.hh"
57 # include "G4OpticksHit.hh"
58 # include "G4EventManager.hh"
59 # include "G4Event.hh"
60 # include "G4RunManager.hh"
61 # include "G4Version.hh"
62 # include "PhotonSD.hh"
63 # include "G4Cerenkov.hh"
64 # include "G4Scintillation.hh"
65 # include <string>
66 #endif
67 // project headers
68 #include "RadiatorSD.hh"
69 #include "ConfigurationManager.hh"
70
71 RadiatorSD::RadiatorSD(G4String name)
72 : G4VSensitiveDetector(name)
73 {
74 verbose = ConfigurationManager::getInstance()->isEnable_verbose();
75 }
76
77 void RadiatorSD::Initialize(G4HCofThisEvent*) {}
78
79 G4bool RadiatorSD::ProcessHits(G4Step* aStep, G4TouchableHistory*)
80 {
81 G4double edep = aStep->GetTotalEnergyDeposit();
82 if(edep == 0.)
83 return false;
84 // only deal with charged particles
85 G4Track* aTrack = aStep->GetTrack();
86 G4double charge = aTrack->GetDynamicParticle()->GetCharge();
87 if(charge == 0)
88 return false;
89 #ifdef WITH_G4OPTICKS
90 if(ConfigurationManager::getInstance()->isEnable_opticks())
91 {
92 G4int materialIndex = 0;
93 if(first)
94 {
95 aMaterial = aTrack->GetMaterial();
96 materialIndex = aMaterial->GetIndex();
97 if(verbose)
98 {
99 G4cout << "*******************************" << G4endl;
100 G4cout << "RadiatorSD::ProcessHits initializing Material: "
101 << aMaterial->GetName() << " " << G4endl;
102 G4cout << "RadiatorSD::ProcessHits: Name "
103 << aStep->GetPreStepPoint()
104 ->GetPhysicalVolume()
105 ->GetLogicalVolume()
106 ->GetName()
107 << G4endl;
108 }
109 aMaterialPropertiesTable = aMaterial->GetMaterialPropertiesTable();
110 if(verbose)
111 {
112 aMaterialPropertiesTable->DumpTable();
113 }
114 //
115 // properties related to Scintillation
116 //
117 # if(G4VERSION_NUMBER > 1072)
118 YieldRatio =
119 aMaterialPropertiesTable->GetConstProperty(kSCINTILLATIONYIELD1) /
120 aMaterialPropertiesTable->GetConstProperty(
121 kSCINTILLATIONYIELD2); // slowerRatio,
122 FastTimeConstant = aMaterialPropertiesTable->GetConstProperty(
123 kSCINTILLATIONTIMECONSTANT1); // TimeConstant,
124 SlowTimeConstant = aMaterialPropertiesTable->GetConstProperty(
125 kSCINTILLATIONTIMECONSTANT2); // slowerTimeConstant,
126 # else
127 Fast_Intensity = aMaterialPropertiesTable->GetProperty(kFASTCOMPONENT);
128 Slow_Intensity = aMaterialPropertiesTable->GetProperty(kSLOWCOMPONENT);
129 YieldRatio = aMaterialPropertiesTable->GetConstProperty(kYIELDRATIO);
130 # endif
131 ScintillationType = Slow;
132 //
133 // properties related to Cerenkov
134 //
135 Rindex = aMaterialPropertiesTable->GetProperty("RINDEX");
136 # if(G4VERSION_NUMBER > 1072)
137 Pmin = Rindex->GetMinEnergy();
138 Pmax = Rindex->GetMaxEnergy();
139 # else
140 Pmin = Rindex->GetMinLowEdgeEnergy();
141 Pmax = Rindex->GetMaxLowEdgeEnergy();
142 # endif
143 dp = Pmax - Pmin;
144 nMax = Rindex->GetMaxValue();
145 if(verbose)
146 {
147 G4cout << "nMax: " << nMax << " Pmin: " << Pmin << " Pmax: " << Pmax
148 << " dp: " << dp << G4endl;
149 Rindex->DumpValues();
150 }
151 //
152 first = false;
153 } // end if first
154 G4int Sphotons = 0; // number of scintillation photons this step
155 G4int Cphotons = 0; // number of Cerenkov photons this step
156 //
157 // info needed for generating Cerenkov photons on the GPU;
158 //
159 G4double maxCos = 0.0;
160 G4double maxSin2 = 0.0;
161 G4double beta = 0.0;
162 G4double beta1 = 0.0;
163 G4double beta2 = 0.0;
164 G4double BetaInverse = 0.0;
165 G4double MeanNumberOfPhotons1 = 0.0;
166 G4double MeanNumberOfPhotons2 = 0.0;
167 G4SteppingManager* fpSteppingManager = G4EventManager::GetEventManager()
168 ->GetTrackingManager()
169 ->GetSteppingManager();
170 G4StepStatus stepStatus = fpSteppingManager->GetfStepStatus();
171 if(stepStatus != fAtRestDoItProc)
172 {
173 G4ProcessVector* procPost = fpSteppingManager->GetfPostStepDoItVector();
174 size_t MAXofPostStepLoops = fpSteppingManager->GetMAXofPostStepLoops();
175 for(size_t i3 = 0; i3 < MAXofPostStepLoops; i3++)
176 {
177 if((*procPost)[i3]->GetProcessName() == "Cerenkov")
178 {
179 G4Cerenkov* proc = (G4Cerenkov*) (*procPost)[i3];
180 thePhysicsTable = proc->GetPhysicsTable();
181 CerenkovAngleIntegrals =
182 (G4PhysicsOrderedFreeVector*) ((*thePhysicsTable)(materialIndex));
183 Cphotons = proc->GetNumPhotons();
184 if(Cphotons > 0)
185 {
186 beta1 = aStep->GetPreStepPoint()->GetBeta();
187 beta2 = aStep->GetPostStepPoint()->GetBeta();
188 beta = (beta1 + beta2) * 0.5;
189 BetaInverse = 1. / beta;
190 maxCos = BetaInverse / nMax;
191 maxSin2 = (1.0 - maxCos) * (1.0 + maxCos);
192 MeanNumberOfPhotons1 =
193 proc->GetAverageNumberOfPhotons(charge, beta1, aMaterial, Rindex);
194 MeanNumberOfPhotons2 =
195 proc->GetAverageNumberOfPhotons(charge, beta2, aMaterial, Rindex);
196 }
197 }
198 if((*procPost)[i3]->GetProcessName() == "Scintillation")
199 {
200 G4Scintillation* proc1 = (G4Scintillation*) (*procPost)[i3];
201 Sphotons = proc1->GetNumPhotons();
202 }
203 }
204 }
205 tSphotons += Sphotons;
206 tCphotons += Cphotons;
207 G4ThreeVector deltaPosition = aStep->GetDeltaPosition();
208 G4double ScintillationTime = 0. * ns;
209 G4int scntId = 1;
210 G4StepPoint* pPreStepPoint = aStep->GetPreStepPoint();
211 G4ThreeVector x0 = pPreStepPoint->GetPosition();
212 G4ThreeVector p0 = aStep->GetDeltaPosition().unit();
213 //
214 // harvest the Scintillation photon gensteps:
215 //
216 if(Sphotons > 0)
217 {
218 G4double ScintillationRiseTime = 0.0;
219 G4Opticks::Get()->collectGenstep_G4Scintillation_1042(
220 aTrack, aStep, Sphotons, scntId, ScintillationTime,
221 ScintillationRiseTime);
222 }
223 //
224 // harvest the Cerenkov photon gensteps:
225 //
226 if(Cphotons > 0)
227 {
228 G4Opticks::Get()->collectGenstep_G4Cerenkov_1042(
229 aTrack, aStep, Cphotons, BetaInverse, Pmin, Pmax, maxCos, maxSin2,
230 MeanNumberOfPhotons1, MeanNumberOfPhotons2);
231 }
232 G4Opticks* g4ok = G4Opticks::Get();
233 G4RunManager* rm = G4RunManager::GetRunManager();
234 const G4Event* event = rm->GetCurrentEvent();
235 G4int eventid = event->GetEventID();
236 G4OpticksHit hit;
237 unsigned num_photons = g4ok->getNumPhotons();
238 if(num_photons > ConfigurationManager::getInstance()->getMaxPhotons())
239 {
240 g4ok->propagateOpticalPhotons(eventid);
241 G4HCtable* hctable = G4SDManager::GetSDMpointer()->GetHCtable();
242 for(G4int i = 0; i < hctable->entries(); ++i)
243 {
244 std::string sdn = hctable->GetSDname(i);
245 std::size_t found = sdn.find("Photondetector");
246 if(found != std::string::npos)
247 {
248 PhotonSD* aSD =
249 (PhotonSD*) G4SDManager::GetSDMpointer()->FindSensitiveDetector(
250 sdn);
251 aSD->AddOpticksHits();
252 }
253 }
254 g4ok->reset();
255 }
256 }
257 #endif
258 return true;
259 }
260
261 void RadiatorSD::EndOfEvent(G4HCofThisEvent*)
262 {
263 tSphotons = 0;
264 tCphotons = 0;
265 }
266