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c7a4dac0 | 1 | /************************************************************************** |
20eef074 | 2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
c7a4dac0 | 15 | |
5bfe44ce | 16 | /* |
85f5e9c2 | 17 | $Id$ |
5bfe44ce | 18 | */ |
f8d9a5b8 | 19 | |
5bfe44ce | 20 | #include <Riostream.h> |
f7a1cc68 | 21 | #include <TGeoGlobalMagField.h> |
b0f5e3fc | 22 | #include <TH1.h> |
9f033001 | 23 | #include <TString.h> |
e8189707 | 24 | #include "AliITS.h" |
e869281d | 25 | #include "AliITSdigitSPD.h" |
5bfe44ce | 26 | #include "AliITShit.h" |
9f033001 | 27 | #include "AliITSmodule.h" |
c7a4dac0 | 28 | #include "AliITSpList.h" |
5bfe44ce | 29 | #include "AliITSCalibrationSPD.h" |
30 | #include "AliITSsegmentationSPD.h" | |
b0f5e3fc | 31 | #include "AliITSsimulationSPD.h" |
f77f13c8 | 32 | #include "AliLog.h" |
5bfe44ce | 33 | #include "AliRun.h" |
a4005be7 | 34 | #include "AliMagF.h" |
9f033001 | 35 | |
bb6b39bf | 36 | //#define DEBUG |
e8189707 | 37 | |
b0f5e3fc | 38 | ClassImp(AliITSsimulationSPD) |
39 | //////////////////////////////////////////////////////////////////////// | |
5bfe44ce | 40 | // Version: 1 |
590d15ee | 41 | // Modified by D. Elia, G.E. Bruno, H. Tydesjo |
42 | // Fast diffusion code by Bjorn S. Nilsen | |
5bfe44ce | 43 | // March-April 2006 |
8e2f60b2 | 44 | // October 2007: GetCalibrationObjects() removed |
b0f5e3fc | 45 | // |
5bfe44ce | 46 | // Version: 0 |
47 | // Written by Boris Batyunya | |
48 | // December 20 1999 | |
21b825a4 | 49 | // |
5bfe44ce | 50 | // |
51 | // AliITSsimulationSPD is to do the simulation of SPDs. | |
52 | // | |
53 | //////////////////////////////////////////////////////////////////////// | |
54 | ||
c7a4dac0 | 55 | //______________________________________________________________________ |
5bfe44ce | 56 | AliITSsimulationSPD::AliITSsimulationSPD(): |
57 | AliITSsimulation(), | |
58 | fHis(0), | |
59 | fSPDname(), | |
a4005be7 | 60 | fCoupling(), |
61 | fLorentz(kFALSE), | |
20eef074 | 62 | fTanLorAng(0), |
63 | fStrobe(kTRUE), | |
64 | fStrobeLenght(4), | |
65 | fStrobePhase(-12.5e-9){ | |
66 | // Default constructor. | |
67 | // Inputs: | |
68 | // none. | |
69 | // Outputs: | |
70 | // none. | |
71 | // Return: | |
72 | // A default constructed AliITSsimulationSPD class. | |
73 | ||
74 | AliDebug(1,Form("Calling default constructor")); | |
5bfe44ce | 75 | // Init(); |
b0f5e3fc | 76 | } |
c7a4dac0 | 77 | //______________________________________________________________________ |
8ba39da9 | 78 | AliITSsimulationSPD::AliITSsimulationSPD(AliITSDetTypeSim *dettyp): |
79 | AliITSsimulation(dettyp), | |
5bfe44ce | 80 | fHis(0), |
81 | fSPDname(), | |
a4005be7 | 82 | fCoupling(), |
83 | fLorentz(kFALSE), | |
20eef074 | 84 | fTanLorAng(0), |
85 | fStrobe(kTRUE), | |
86 | fStrobeLenght(4), | |
87 | fStrobePhase(-12.5e-9){ | |
88 | // standard constructor | |
89 | // Inputs: | |
90 | // AliITSsegmentation *seg A pointer to the segmentation class | |
91 | // to be used for this simulation | |
92 | // AliITSCalibration *resp A pointer to the responce class to | |
93 | // be used for this simulation | |
94 | // Outputs: | |
95 | // none. | |
96 | // Return: | |
97 | // A default constructed AliITSsimulationSPD class. | |
98 | ||
99 | AliDebug(1,Form("Calling standard constructor ")); | |
100 | Init(); | |
aacedc3e | 101 | } |
102 | //______________________________________________________________________ | |
5bfe44ce | 103 | void AliITSsimulationSPD::Init(){ |
20eef074 | 104 | // Initilization |
105 | // Inputs: | |
106 | // none. | |
107 | // Outputs: | |
108 | // none. | |
109 | // Return: | |
110 | // none. | |
111 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
112 | ||
113 | SetModuleNumber(0); | |
114 | SetEventNumber(0); | |
115 | SetMap(new AliITSpList(GetNPixelsZ(),GetNPixelsX())); | |
116 | AliITSSimuParam* simpar = fDetType->GetSimuParam(); | |
117 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
118 | Double_t bias = simpar->GetSPDBiasVoltage(); | |
5bfe44ce | 119 | // cout << "Bias Voltage --> " << bias << endl; // dom |
20eef074 | 120 | simpar->SetDistanceOverVoltage(kmictocm*seg->Dy(),bias); |
5bfe44ce | 121 | // set kind of coupling ("old" or "new") |
20eef074 | 122 | char opt[20]; |
123 | simpar->GetSPDCouplingOption(opt); | |
124 | char *old = strstr(opt,"old"); | |
125 | if (old) { | |
126 | fCoupling=2; | |
127 | } else { | |
128 | fCoupling=1; | |
129 | } // end if | |
130 | //SetLorentzDrift(kTRUE); | |
131 | if (fLorentz) SetTanLorAngle(); | |
132 | //SetStrobeGeneration(kFALSE); | |
133 | if (fStrobe) GenerateStrobePhase(); | |
a4005be7 | 134 | } |
135 | //______________________________________________________________________ | |
136 | Bool_t AliITSsimulationSPD::SetTanLorAngle(Double_t WeightHole) { | |
20eef074 | 137 | // This function set the Tangent of the Lorentz angle. |
138 | // A weighted average is used for electrons and holes | |
139 | // Input: Double_t WeightHole: wheight for hole: it should be in the range [0,1] | |
140 | // output: Bool_t : kTRUE in case of success | |
141 | // | |
142 | if(!fDetType) { | |
143 | AliError("AliITSsimulationSPD::SetTanLorAngle: AliITSDetTypeSim* fDetType not set "); | |
144 | return kFALSE;} | |
145 | if(WeightHole<0) { | |
146 | WeightHole=0.; | |
147 | AliWarning("AliITSsimulationSPD::SetTanLorAngle: You have asked for negative Hole weight"); | |
148 | AliWarning("AliITSsimulationSPD::SetTanLorAngle: I'm going to use only electrons"); | |
149 | } | |
150 | if(WeightHole>1) { | |
151 | WeightHole=1.; | |
152 | AliWarning("AliITSsimulationSPD::SetTanLorAngle: You have asked for weight > 1"); | |
153 | AliWarning("AliITSsimulationSPD::SetTanLorAngle: I'm going to use only holes"); | |
154 | } | |
155 | Double_t WeightEle=1.-WeightHole; | |
156 | AliITSSimuParam* simpar = fDetType->GetSimuParam(); | |
157 | Double_t pos[3]={0.,0.,0.}; | |
158 | Double_t B[3]={0.,0.,0.}; | |
159 | TGeoGlobalMagField::Instance()->Field(pos,B); | |
160 | fTanLorAng = TMath::Tan(WeightHole*simpar->LorentzAngleHole(B[2]) + | |
161 | WeightEle*simpar->LorentzAngleElectron(B[2])); | |
162 | fTanLorAng*=-1.; // this only for the old geometry | |
163 | // comment the upper line for the new geometry | |
164 | return kTRUE; | |
c7a4dac0 | 165 | } |
166 | //______________________________________________________________________ | |
5bfe44ce | 167 | AliITSsimulationSPD::~AliITSsimulationSPD(){ |
20eef074 | 168 | // destructor |
169 | // Inputs: | |
170 | // none. | |
171 | // Outputs: | |
172 | // none. | |
173 | // Return: | |
174 | // none. | |
175 | ||
176 | if (fHis) { | |
177 | fHis->Delete(); | |
178 | delete fHis; | |
179 | } // end if fHis | |
b0f5e3fc | 180 | } |
c7a4dac0 | 181 | //______________________________________________________________________ |
5bfe44ce | 182 | AliITSsimulationSPD::AliITSsimulationSPD(const |
183 | AliITSsimulationSPD | |
7537d03c | 184 | &s) : AliITSsimulation(s), |
185 | fHis(s.fHis), | |
186 | fSPDname(s.fSPDname), | |
a4005be7 | 187 | fCoupling(s.fCoupling), |
188 | fLorentz(s.fLorentz), | |
20eef074 | 189 | fTanLorAng(s.fTanLorAng), |
190 | fStrobe(s.fStrobe), | |
191 | fStrobeLenght(s.fStrobeLenght), | |
192 | fStrobePhase(s.fStrobePhase){ | |
193 | // Copy Constructor | |
194 | // Inputs: | |
195 | // AliITSsimulationSPD &s The original class for which | |
196 | // this class is a copy of | |
197 | // Outputs: | |
198 | // none. | |
199 | // Return: | |
c7a4dac0 | 200 | |
b0f5e3fc | 201 | } |
c7a4dac0 | 202 | //______________________________________________________________________ |
5bfe44ce | 203 | AliITSsimulationSPD& AliITSsimulationSPD::operator=(const |
20eef074 | 204 | AliITSsimulationSPD &s){ |
205 | // Assignment operator | |
206 | // Inputs: | |
207 | // AliITSsimulationSPD &s The original class for which | |
208 | // this class is a copy of | |
209 | // Outputs: | |
210 | // none. | |
211 | // Return: | |
212 | ||
213 | if(&s == this) return *this; | |
214 | this->fHis = s.fHis; | |
215 | fCoupling = s.fCoupling; | |
216 | fSPDname = s.fSPDname; | |
217 | fLorentz = s.fLorentz; | |
218 | fTanLorAng = s.fTanLorAng; | |
219 | fStrobe = s.fStrobe; | |
220 | fStrobeLenght = s.fStrobeLenght; | |
221 | fStrobePhase = s.fStrobePhase; | |
222 | return *this; | |
5bfe44ce | 223 | } |
85f5e9c2 | 224 | /* |
d2f55a22 | 225 | //______________________________________________________________________ |
5bfe44ce | 226 | AliITSsimulation& AliITSsimulationSPD::operator=(const |
20eef074 | 227 | AliITSsimulation &s){ |
228 | // Assignment operator | |
229 | // Inputs: | |
230 | // AliITSsimulationSPD &s The original class for which | |
231 | // this class is a copy of | |
232 | // Outputs: | |
233 | // none. | |
234 | // Return: | |
235 | ||
236 | if(&s == this) return *this; | |
237 | Error("AliITSsimulationSPD","Not allowed to make a = with " | |
238 | "AliITSsimulationSPD","Using default creater instead"); | |
239 | ||
240 | return *this; | |
5bfe44ce | 241 | } |
85f5e9c2 | 242 | */ |
5bfe44ce | 243 | //______________________________________________________________________ |
244 | void AliITSsimulationSPD::InitSimulationModule(Int_t module, Int_t event){ | |
20eef074 | 245 | // This function creates maps to build the list of tracks for each |
246 | // summable digit. Inputs defined by base class. | |
247 | // Inputs: | |
248 | // Int_t module // Module number to be simulated | |
249 | // Int_t event // Event number to be simulated | |
250 | // Outputs: | |
251 | // none | |
252 | // Returns: | |
253 | // none | |
254 | ||
255 | AliDebug(1,Form("(module=%d,event=%d)",module,event)); | |
256 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
257 | AliITSSimuParam* simpar = fDetType->GetSimuParam(); | |
258 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
259 | SetModuleNumber(module); | |
260 | SetEventNumber(event); | |
261 | simpar->SetDistanceOverVoltage(kmictocm*seg->Dy(),simpar->GetSPDBiasVoltage(module)); | |
262 | ClearMap(); | |
5bfe44ce | 263 | } |
264 | //_____________________________________________________________________ | |
265 | void AliITSsimulationSPD::SDigitiseModule(AliITSmodule *mod,Int_t, | |
20eef074 | 266 | Int_t event){ |
267 | // This function begins the work of creating S-Digits. Inputs defined | |
268 | // by base class. | |
269 | // Inputs: | |
270 | // AliITSmodule *mod // module | |
271 | // Int_t // not used | |
272 | // Int_t event // Event number | |
273 | // Outputs: | |
274 | // none | |
275 | // Return: | |
276 | // test // test returns kTRUE if the module contained hits | |
277 | // // test returns kFALSE if it did not contain hits | |
278 | ||
279 | AliDebug(1,Form("(mod=%p, ,event=%d)",mod,event)); | |
280 | if(!(mod->GetNhits())){ | |
281 | AliDebug(1,Form("In event %d module %d there are %d hits returning.", | |
5bfe44ce | 282 | event, mod->GetIndex(),mod->GetNhits())); |
20eef074 | 283 | return;// if module has no hits don't create Sdigits |
284 | } // end if | |
285 | SetModuleNumber(mod->GetIndex()); | |
286 | if (fStrobe) if(event != GetEventNumber()) GenerateStrobePhase(); | |
287 | SetEventNumber(event); | |
288 | InitSimulationModule( GetModuleNumber() , event ); | |
289 | // HitToSDigit(mod); | |
290 | HitToSDigitFast(mod); | |
291 | RemoveDeadPixels(mod); | |
590d15ee | 292 | // cout << "After Remove in SDigitiseModule !!!!!" << endl; // dom |
293 | // cout << "Module " << mod->GetIndex() << " Event " << event << endl; // dom | |
20eef074 | 294 | WriteSDigits(); |
295 | ClearMap(); | |
5bfe44ce | 296 | } |
297 | //______________________________________________________________________ | |
298 | void AliITSsimulationSPD::WriteSDigits(){ | |
20eef074 | 299 | // This function adds each S-Digit to pList |
300 | // Inputs: | |
301 | // none. | |
302 | // Outputs: | |
303 | // none. | |
304 | // Return: | |
305 | // none | |
306 | Int_t ix, nix, iz, niz; | |
307 | static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS"); | |
308 | ||
309 | AliDebug(1,Form("Writing SDigits for module %d",GetModuleNumber())); | |
590d15ee | 310 | // cout << "WriteSDigits for module " << GetModuleNumber() << endl; // dom |
20eef074 | 311 | GetMap()->GetMaxMapIndex(niz, nix); |
312 | for(iz=0; iz<niz; iz++)for(ix=0; ix<nix; ix++){ | |
313 | if(GetMap()->GetSignalOnly(iz,ix)>0.0){ | |
590d15ee | 314 | // cout << " Signal gt 0 iz ix " << iz << ix << " Module " << GetModuleNumber() << endl; // dom |
20eef074 | 315 | aliITS->AddSumDigit(*(GetMap()->GetpListItem(iz,ix))); |
5bfe44ce | 316 | if(AliDebugLevel()>0) { |
317 | AliDebug(1,Form("%d, %d",iz,ix)); | |
318 | cout << *(GetMap()->GetpListItem(iz,ix)) << endl; | |
20eef074 | 319 | } // end if GetDebug |
320 | } // end if GetMap()->GetSignalOnly(iz,ix)>0.0 | |
321 | } // end for iz,ix | |
322 | return; | |
3a97c582 | 323 | } |
324 | //______________________________________________________________________ | |
325 | void AliITSsimulationSPD::FinishSDigitiseModule(){ | |
20eef074 | 326 | // This function calls SDigitsToDigits which creates Digits from SDigits |
327 | // Inputs: | |
328 | // none | |
329 | // Outputs: | |
330 | // none | |
331 | // Return | |
332 | // none | |
333 | ||
334 | AliDebug(1,"()"); | |
590d15ee | 335 | // cout << "FinishSDigitiseModule for module " << GetModuleNumber() << endl; // dom |
20eef074 | 336 | FrompListToDigits(); // Charge To Signal both adds noise and |
337 | ClearMap(); | |
338 | return; | |
5bfe44ce | 339 | } |
340 | //______________________________________________________________________ | |
341 | void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod,Int_t, | |
20eef074 | 342 | Int_t event){ |
343 | // This function creates Digits straight from the hits and then adds | |
344 | // electronic noise to the digits before adding them to pList | |
345 | // Each of the input variables is passed along to HitToSDigit | |
346 | // Inputs: | |
347 | // AliITSmodule *mod module | |
348 | // Int_t Dummy. | |
349 | // Int_t Dummy | |
350 | // Outputs: | |
351 | // none. | |
352 | // Return: | |
353 | // none. | |
354 | ||
355 | if (fStrobe) if(event != GetEventNumber()) GenerateStrobePhase(); | |
356 | AliDebug(1,Form("(mod=%p,,)",mod)); | |
357 | // HitToSDigit(mod); | |
358 | InitSimulationModule( mod->GetIndex(), event ); | |
359 | HitToSDigitFast(mod); | |
360 | RemoveDeadPixels(mod); | |
590d15ee | 361 | // cout << "After Remove in DigitiseModule in module " << mod->GetIndex() << endl; // dom |
20eef074 | 362 | FrompListToDigits(); |
363 | ClearMap(); | |
c7a4dac0 | 364 | } |
365 | //______________________________________________________________________ | |
5bfe44ce | 366 | void AliITSsimulationSPD::HitToSDigit(AliITSmodule *mod){ |
20eef074 | 367 | // Does the charge distributions using Gaussian diffusion charge charing. |
368 | // Inputs: | |
369 | // AliITSmodule *mod Pointer to this module | |
370 | // Output: | |
371 | // none. | |
372 | // Return: | |
373 | // none. | |
374 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
375 | const Double_t kBunchLenght = 25e-9; // LHC clock | |
376 | TObjArray *hits = mod->GetHits(); | |
377 | Int_t nhits = hits->GetEntriesFast(); | |
378 | Int_t h,ix,iz,i; | |
379 | Int_t idtrack; | |
380 | Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0,ld=0.0; | |
381 | Double_t x,y,z,t,tp,st,dt=0.2,el,sig,sigx,sigz,fda; | |
382 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
383 | AliITSSimuParam *simpar = fDetType->GetSimuParam(); | |
384 | Double_t thick = 0.5*kmictocm*seg->Dy(); // Half Thickness | |
385 | simpar->GetSPDSigmaDiffusionAsymmetry(fda); // | |
386 | ||
387 | AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling)); | |
388 | if(nhits<=0) return; | |
389 | for(h=0;h<nhits;h++){ | |
390 | if(AliDebugLevel()>0) { | |
5bfe44ce | 391 | AliDebug(1,Form("Hits, %d", h)); |
392 | cout << *(mod->GetHit(h)) << endl; | |
20eef074 | 393 | } // end if GetDebug |
394 | // Check if the hit is inside readout window | |
395 | if (fStrobe) | |
396 | if ((mod->GetHit(h)->GetTOF() < fStrobePhase) || | |
397 | (mod->GetHit(h)->GetTOF() > (fStrobePhase+(Double_t)fStrobeLenght*kBunchLenght))) continue; | |
398 | if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue; | |
399 | st = TMath::Sqrt(x1*x1+y1*y1+z1*z1); | |
400 | if(st>0.0){ | |
401 | st = (Double_t)((Int_t)(st/kmictocm)); // number of microns | |
402 | if(st<=1.0) st = 1.0; | |
403 | dt = 1.0/st; | |
404 | for(t=0.0;t<1.0;t+=dt){ // Integrate over t | |
405 | tp = t+0.5*dt; | |
406 | x = x0+x1*tp; | |
407 | y = y0+y1*tp; | |
408 | z = z0+z1*tp; | |
409 | if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside | |
410 | //el = res->GeVToCharge((Double_t)(dt*de)); | |
411 | el = dt * de / simpar->GetGeVToCharge(); | |
412 | if(GetDebug(1)){ | |
413 | if(el<=0.0) cout<<"el="<<el<<" dt="<<dt | |
414 | <<" de="<<de<<endl; | |
415 | } // end if GetDebug | |
416 | sig = simpar->SigmaDiffusion1D(TMath::Abs(thick + y)); | |
417 | sigx=sig; | |
418 | sigz=sig*fda; | |
419 | if (fLorentz) ld=(y+thick)*fTanLorAng; | |
420 | SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,ld,idtrack,h); | |
421 | } // end for t | |
422 | } else { // st == 0.0 deposit it at this point | |
423 | x = x0; | |
424 | y = y0; | |
425 | z = z0; | |
426 | if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside | |
427 | //el = res->GeVToCharge((Double_t)de); | |
428 | el = de / simpar->GetGeVToCharge(); | |
429 | sig = simpar->SigmaDiffusion1D(TMath::Abs(thick + y)); | |
430 | sigx=sig; | |
431 | sigz=sig*fda; | |
432 | if (fLorentz) ld=(y+thick)*fTanLorAng; | |
433 | SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,ld,idtrack,h); | |
434 | } // end if st>0.0 | |
435 | ||
436 | } // Loop over all hits h | |
437 | ||
438 | // Coupling | |
439 | switch (fCoupling) { | |
440 | default: | |
441 | break; | |
442 | case 1: //case 3: | |
443 | for(i=0;i<GetMap()->GetEntries();i++) | |
444 | if(GetMap()->GetpListItem(i)==0) continue; | |
445 | else{ | |
446 | GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix); | |
447 | SetCoupling(iz,ix,idtrack,h); | |
448 | } // end for i | |
449 | break; | |
450 | case 2: // case 4: | |
451 | for(i=0;i<GetMap()->GetEntries();i++) | |
452 | if(GetMap()->GetpListItem(i)==0) continue; | |
453 | else{ | |
454 | GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix); | |
455 | SetCouplingOld(iz,ix,idtrack,h); | |
456 | } // end for i | |
457 | break; | |
458 | } // end switch | |
459 | if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling); | |
c7a4dac0 | 460 | } |
461 | //______________________________________________________________________ | |
5bfe44ce | 462 | void AliITSsimulationSPD::HitToSDigitFast(AliITSmodule *mod){ |
20eef074 | 463 | // Does the charge distributions using Gaussian diffusion charge charing. // Inputs: |
464 | // AliITSmodule *mod Pointer to this module | |
465 | // Output: | |
466 | // none. | |
467 | // Return: | |
468 | // none. | |
469 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
470 | const Int_t kn10=10; | |
471 | const Double_t kti[kn10]={7.443716945e-3,2.166976971e-1,3.397047841e-1, | |
472 | 4.325316833e-1,4.869532643e-1,5.130467358e-1, | |
473 | 5.674683167e-1,6.602952159e-1,7.833023029e-1, | |
474 | 9.255628306e-1}; | |
475 | const Double_t kwi[kn10]={1.477621124e-1,1.346333597e-1,1.095431813e-1, | |
476 | 7.472567455e-2,3.333567215e-2,3.333567215e-2, | |
477 | 7.472567455e-2,1.095431813e-1,1.346333597e-1, | |
478 | 1.477621124e-1}; | |
479 | const Double_t kBunchLenght = 25e-9; // LHC clock | |
480 | TObjArray *hits = mod->GetHits(); | |
481 | Int_t nhits = hits->GetEntriesFast(); | |
482 | Int_t h,ix,iz,i; | |
483 | Int_t idtrack; | |
484 | Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0,ld=0.0; | |
485 | Double_t x,y,z,t,st,el,sig,sigx,sigz,fda; | |
486 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
487 | AliITSSimuParam* simpar = fDetType->GetSimuParam(); | |
488 | Double_t thick = 0.5*kmictocm*seg->Dy(); // Half thickness | |
489 | simpar->GetSPDSigmaDiffusionAsymmetry(fda); | |
5bfe44ce | 490 | // cout << "Half Thickness " << thick << endl; // dom |
491 | // cout << "Diffusion asymm " << fda << endl; // dom | |
492 | ||
20eef074 | 493 | AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling)); |
494 | if(nhits<=0) return; | |
495 | for(h=0;h<nhits;h++){ | |
496 | if(AliDebugLevel()>0) { | |
497 | AliDebug(1,Form("Hits, %d", h)); | |
498 | cout << *(mod->GetHit(h)) << endl; | |
499 | } // end if GetDebug | |
500 | // Check if the hit is inside readout window | |
501 | if (fStrobe) | |
502 | if ((mod->GetHit(h)->GetTOF() < fStrobePhase) || | |
503 | (mod->GetHit(h)->GetTOF() > (fStrobePhase+(Double_t)fStrobeLenght*kBunchLenght))) continue; | |
504 | if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue; | |
505 | st = TMath::Sqrt(x1*x1+y1*y1+z1*z1); | |
506 | if(st>0.0) for(i=0;i<kn10;i++){ // Integrate over t | |
507 | t = kti[i]; | |
508 | x = x0+x1*t; | |
509 | y = y0+y1*t; | |
510 | z = z0+z1*t; | |
511 | if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside | |
512 | el = kwi[i]*de/simpar->GetGeVToCharge(); | |
513 | if(GetDebug(1)){ | |
514 | if(el<=0.0) cout<<"el="<<el<<" kwi["<<i<<"]="<<kwi[i] | |
515 | <<" de="<<de<<endl; | |
516 | } // end if GetDebug | |
517 | sig = simpar->SigmaDiffusion1D(TMath::Abs(thick + y)); | |
518 | sigx=sig; | |
519 | sigz=sig*fda; | |
520 | if (fLorentz) ld=(y+thick)*fTanLorAng; | |
521 | SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,ld,idtrack,h); | |
8e2f60b2 | 522 | // cout << "sigx sigz " << sigx << " " << sigz << endl; // dom |
20eef074 | 523 | } // end for i // End Integrate over t |
524 | else { // st == 0.0 deposit it at this point | |
525 | x = x0; | |
526 | y = y0; | |
527 | z = z0; | |
528 | if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside | |
529 | el = de / simpar->GetGeVToCharge(); | |
530 | sig = simpar->SigmaDiffusion1D(TMath::Abs(thick + y)); | |
531 | sigx=sig; | |
532 | sigz=sig*fda; | |
533 | if (fLorentz) ld=(y+thick)*fTanLorAng; | |
534 | SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,ld,idtrack,h); | |
535 | } // end if st>0.0 | |
536 | ||
537 | } // Loop over all hits h | |
538 | ||
539 | // Coupling | |
540 | switch (fCoupling) { | |
541 | default: | |
542 | break; | |
543 | case 1: // case 3: | |
544 | for(i=0;i<GetMap()->GetEntries();i++) | |
545 | if(GetMap()->GetpListItem(i)==0) continue; | |
546 | else{ | |
547 | GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix); | |
548 | SetCoupling(iz,ix,idtrack,h); | |
549 | } // end for i | |
550 | break; | |
551 | case 2: // case 4: | |
552 | for(i=0;i<GetMap()->GetEntries();i++) | |
553 | if(GetMap()->GetpListItem(i)==0) continue; | |
554 | else{ | |
555 | GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix); | |
556 | SetCouplingOld(iz,ix,idtrack,h); | |
557 | } // end for i | |
558 | break; | |
559 | } // end switch | |
560 | if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling); | |
21b825a4 | 561 | } |
c7a4dac0 | 562 | //______________________________________________________________________ |
5bfe44ce | 563 | void AliITSsimulationSPD::SpreadCharge(Double_t x0,Double_t z0, |
20eef074 | 564 | Int_t ix0,Int_t iz0, |
a4005be7 | 565 | Double_t el,Double_t sig,Double_t ld, |
566 | Int_t t,Int_t hi){ | |
20eef074 | 567 | // Spreads the charge over neighboring cells. Assume charge is distributed |
568 | // as charge(x,z) = (el/2*pi*sig*sig)*exp(-arg) | |
569 | // arg=((x-x0)*(x-x0)/2*sig*sig)+((z-z0*z-z0)/2*sig*sig) | |
570 | // if fLorentz=kTRUE, then x0=x0+ld (Lorentz drift taken into account) | |
571 | // Defined this way, the integral over all x and z is el. | |
572 | // Inputs: | |
573 | // Double_t x0 x position of point where charge is liberated | |
574 | // Double_t z0 z position of point where charge is liberated | |
575 | // Int_t ix0 row of cell corresponding to point x0 | |
576 | // Int_t iz0 columb of cell corresponding to point z0 | |
577 | // Double_t el number of electrons liberated in this step | |
578 | // Double_t sig Sigma difusion for this step (y0 dependent) | |
579 | // Double_t ld lorentz drift in x for this step (y0 dependent) | |
580 | // Int_t t track number | |
581 | // Int_t ti hit track index number | |
582 | // Int_t hi hit "hit" index number | |
583 | // Outputs: | |
584 | // none. | |
585 | // Return: | |
586 | // none. | |
587 | const Int_t knx = 3,knz = 2; | |
588 | const Double_t kRoot2 = 1.414213562; // Sqrt(2). | |
589 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
590 | Int_t ix,iz,ixs,ixe,izs,ize; | |
591 | Float_t x,z; | |
592 | Double_t x1,x2,z1,z2,s,sp; | |
593 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
594 | ||
595 | ||
596 | if(GetDebug(4)) Info("SpreadCharge","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e," | |
597 | "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sig,t,hi); | |
598 | if(sig<=0.0) { // if sig<=0 No diffusion to simulate. | |
599 | GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el); | |
600 | if(GetDebug(2)){ | |
601 | cout << "sig<=0.0=" << sig << endl; | |
602 | } // end if GetDebug | |
603 | return; | |
604 | } // end if | |
605 | sp = 1.0/(sig*kRoot2); | |
606 | if(GetDebug(2)){ | |
607 | cout << "sig=" << sig << " sp=" << sp << endl; | |
608 | } // end if GetDebug | |
609 | ixs = TMath::Max(-knx+ix0,0); | |
610 | ixe = TMath::Min(knx+ix0,seg->Npx()-1); | |
611 | izs = TMath::Max(-knz+iz0,0); | |
612 | ize = TMath::Min(knz+iz0,seg->Npz()-1); | |
613 | for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){ | |
614 | seg->DetToLocal(ix,iz,x,z); // pixel center | |
615 | x1 = x; | |
616 | z1 = z; | |
617 | x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper | |
618 | x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower | |
619 | z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper | |
620 | z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower | |
621 | x1 -= x0+ld; // Distance from where track traveled (taking into account the Lorentz drift) | |
622 | x2 -= x0+ld; // Distance from where track traveled (taking into account the Lorentz drift) | |
623 | z1 -= z0; // Distance from where track traveled | |
624 | z2 -= z0; // Distance from where track traveled | |
625 | s = 0.25; // Correction based on definision of Erfc | |
626 | s *= TMath::Erfc(sp*x1) - TMath::Erfc(sp*x2); | |
627 | if(GetDebug(3)){ | |
628 | cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<< | |
629 | " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<< | |
630 | " sp*x1="<<sp*x1<<" sp*x2="<<sp*x2<<" s="<<s; | |
631 | } // end if GetDebug | |
632 | s *= TMath::Erfc(sp*z1) - TMath::Erfc(sp*z2); | |
633 | if(GetDebug(3)){ | |
634 | cout<<" sp*z1="<<sp*z1<<" sp*z2="<<sp*z2<<" s="<<s<< endl; | |
635 | } // end if GetDebug | |
636 | GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el); | |
637 | } // end for ix, iz | |
c7a4dac0 | 638 | } |
639 | //______________________________________________________________________ | |
5bfe44ce | 640 | void AliITSsimulationSPD::SpreadChargeAsym(Double_t x0,Double_t z0, |
20eef074 | 641 | Int_t ix0,Int_t iz0, |
642 | Double_t el,Double_t sigx,Double_t sigz, | |
643 | Double_t ld,Int_t t,Int_t hi){ | |
644 | // Spreads the charge over neighboring cells. Assume charge is distributed | |
645 | // as charge(x,z) = (el/2*pi*sigx*sigz)*exp(-arg) | |
646 | // arg=((x-x0)*(x-x0)/2*sigx*sigx)+((z-z0*z-z0)/2*sigz*sigz) | |
647 | // if fLorentz=kTRUE, then x0=x0+ld (Lorentz drift taken into account) | |
648 | // Defined this way, the integral over all x and z is el. | |
649 | // Inputs: | |
650 | // Double_t x0 x position of point where charge is liberated | |
651 | // Double_t z0 z position of point where charge is liberated | |
652 | // Int_t ix0 row of cell corresponding to point x0 | |
653 | // Int_t iz0 columb of cell corresponding to point z0 | |
654 | // Double_t el number of electrons liberated in this step | |
655 | // Double_t sigx Sigma difusion along x for this step (y0 dependent) | |
656 | // Double_t sigz Sigma difusion along z for this step (y0 dependent) | |
657 | // Double_t ld lorentz drift in x for this stip (y0 dependent) | |
658 | // Int_t t track number | |
659 | // Int_t ti hit track index number | |
660 | // Int_t hi hit "hit" index number | |
661 | // Outputs: | |
662 | // none. | |
663 | // Return: | |
664 | // none. | |
665 | const Int_t knx = 3,knz = 2; | |
666 | const Double_t kRoot2 = 1.414213562; // Sqrt(2). | |
667 | const Double_t kmictocm = 1.0e-4; // convert microns to cm. | |
668 | Int_t ix,iz,ixs,ixe,izs,ize; | |
669 | Float_t x,z; | |
670 | Double_t x1,x2,z1,z2,s,spx,spz; | |
671 | AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0); | |
672 | ||
673 | ||
674 | if(GetDebug(4)) Info("SpreadChargeAsym","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e," | |
675 | "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sigx,sigz,t,hi); | |
676 | if(sigx<=0.0 || sigz<=0.0) { // if sig<=0 No diffusion to simulate. | |
677 | GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el); | |
678 | if(GetDebug(2)){ | |
679 | cout << "sigx<=0.0=" << sigx << endl; | |
680 | cout << "sigz<=0.0=" << sigz << endl; | |
681 | } // end if GetDebug | |
682 | return; | |
683 | } // end if | |
684 | spx = 1.0/(sigx*kRoot2); spz = 1.0/(sigz*kRoot2); | |
685 | if(GetDebug(2)){ | |
686 | cout << "sigx=" << sigx << " spx=" << spx << endl; | |
687 | cout << "sigz=" << sigz << " spz=" << spz << endl; | |
688 | } // end if GetDebug | |
689 | ixs = TMath::Max(-knx+ix0,0); | |
690 | ixe = TMath::Min(knx+ix0,seg->Npx()-1); | |
691 | izs = TMath::Max(-knz+iz0,0); | |
692 | ize = TMath::Min(knz+iz0,seg->Npz()-1); | |
693 | for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){ | |
694 | seg->DetToLocal(ix,iz,x,z); // pixel center | |
695 | x1 = x; | |
696 | z1 = z; | |
697 | x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper | |
698 | x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower | |
699 | z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper | |
700 | z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower | |
701 | x1 -= x0+ld; // Distance from where track traveled (taking into account the Lorentz drift) | |
702 | x2 -= x0+ld; // Distance from where track traveled (taking into account the Lorentz drift) | |
703 | z1 -= z0; // Distance from where track traveled | |
704 | z2 -= z0; // Distance from where track traveled | |
705 | s = 0.25; // Correction based on definision of Erfc | |
706 | s *= TMath::Erfc(spx*x1) - TMath::Erfc(spx*x2); | |
707 | if(GetDebug(3)){ | |
708 | cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<< | |
709 | " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<< | |
710 | " spx*x1="<<spx*x1<<" spx*x2="<<spx*x2<<" s="<<s; | |
711 | } // end if GetDebug | |
712 | s *= TMath::Erfc(spz*z1) - TMath::Erfc(spz*z2); | |
713 | if(GetDebug(3)){ | |
714 | cout<<" spz*z1="<<spz*z1<<" spz*z2="<<spz*z2<<" s="<<s<< endl; | |
715 | } // end if GetDebug | |
716 | GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el); | |
717 | } // end for ix, iz | |
c7a4dac0 | 718 | } |
719 | //______________________________________________________________________ | |
5bfe44ce | 720 | void AliITSsimulationSPD::RemoveDeadPixels(AliITSmodule *mod){ |
20eef074 | 721 | // Removes dead pixels on each module (ladder) |
722 | // Inputs: | |
723 | // Module Index (0,239) | |
724 | // Outputs: | |
725 | // none. | |
726 | // Return: | |
727 | // none. | |
728 | ||
729 | Int_t moduleNr = mod->GetIndex(); | |
730 | AliITSCalibrationSPD* calObj = (AliITSCalibrationSPD*) GetCalibrationModel(moduleNr); | |
731 | ||
732 | Int_t nrDead = calObj->GetNrBad(); | |
8e2f60b2 | 733 | // cout << "Module --> " << moduleNr << endl; // dom |
734 | // cout << "nr of dead " << nrDead << endl; // dom | |
20eef074 | 735 | for (Int_t i=0; i<nrDead; i++) { |
736 | GetMap()->DeleteHit(calObj->GetBadColAt(i),calObj->GetBadRowAt(i)); | |
8e2f60b2 | 737 | // cout << "dead index " << i << endl; // dom |
738 | // cout << "col row --> " << calObj->GetDeadColAt(i) << " " << calObj->GetDeadRowAt(i) << endl; // dom | |
20eef074 | 739 | } |
5bfe44ce | 740 | } |
741 | //______________________________________________________________________ | |
590d15ee | 742 | void AliITSsimulationSPD::FrompListToDigits(){ |
20eef074 | 743 | // add noise and electronics, perform the zero suppression and add the |
744 | // digit to the list | |
745 | // Inputs: | |
746 | // none. | |
747 | // Outputs: | |
748 | // none. | |
749 | // Return: | |
750 | // none. | |
751 | static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS"); | |
752 | Int_t j,ix,iz; | |
753 | Double_t electronics; | |
754 | Double_t sig; | |
755 | const Int_t knmaxtrk=AliITSdigit::GetNTracks(); | |
756 | static AliITSdigitSPD dig; | |
757 | AliITSSimuParam *simpar = fDetType->GetSimuParam(); | |
758 | if(GetDebug(1)) Info("FrompListToDigits","()"); | |
759 | for(iz=0; iz<GetNPixelsZ(); iz++) for(ix=0; ix<GetNPixelsX(); ix++){ | |
5bfe44ce | 760 | // NEW (for the moment plugged by hand, in the future possibly read from Data Base) |
761 | // here parametrize the efficiency of the pixel along the row for the test columns (1,9,17,25) | |
762 | // if(iz==1 || iz == 9 || iz == 17 || iz == 25) { | |
763 | // Double_t eff,p1=0.,p2=0.; | |
764 | // Double_t x=ix; | |
765 | // switch (iz) { | |
766 | // case 1: p1=0.63460;p2=0.42438E-01;break; | |
767 | // case 9: p1=0.41090;p2=0.75914E-01;break; | |
768 | // case 17: p1=0.31883;p2=0.91502E-01;break; | |
769 | // case 25: p1=0.48828;p2=0.57975E-01;break; | |
770 | // } // end switch | |
771 | // eff=1.-p1*exp(-p2*x); | |
772 | // if (gRandom->Rndm() >= eff) continue; | |
773 | // } // end if | |
2ae37d58 | 774 | // END parametrize the efficiency |
775 | // | |
20eef074 | 776 | electronics = simpar->ApplySPDBaselineAndNoise(); |
777 | UpdateMapNoise(ix,iz,electronics); | |
778 | // | |
779 | // Apply Threshold and write Digits. | |
780 | sig = GetMap()->GetSignalOnly(iz,ix); | |
781 | FillHistograms(ix,iz,sig+electronics); | |
782 | if(GetDebug(3)){ | |
783 | cout<<sig<<"+"<<electronics<<">threshold("<<ix<<","<<iz | |
784 | <<")="<<GetThreshold() <<endl; | |
785 | } // end if GetDebug | |
786 | if (sig+electronics <= GetThreshold()) continue; | |
787 | dig.SetCoord1(iz); | |
788 | dig.SetCoord2(ix); | |
789 | dig.SetSignal(1); | |
590d15ee | 790 | |
791 | // dig.SetSignalSPD((Int_t) GetMap()->GetSignal(iz,ix)); | |
20eef074 | 792 | Double_t aSignal = GetMap()->GetSignal(iz,ix); |
793 | if (TMath::Abs(aSignal)>2147483647.0) { | |
794 | //PH 2147483647 is the max. integer | |
795 | //PH This apparently is a problem which needs investigation | |
796 | AliWarning(Form("Too big or too small signal value %f",aSignal)); | |
797 | aSignal = TMath::Sign((Double_t)2147483647,aSignal); | |
798 | } | |
799 | dig.SetSignalSPD((Int_t)aSignal); | |
800 | ||
801 | for(j=0;j<knmaxtrk;j++){ | |
802 | if (j<GetMap()->GetNEntries()) { | |
803 | dig.SetTrack(j,GetMap()->GetTrack(iz,ix,j)); | |
804 | dig.SetHit(j,GetMap()->GetHit(iz,ix,j)); | |
805 | }else { // Default values | |
806 | dig.SetTrack(j,-3); | |
807 | dig.SetHit(j,-1); | |
808 | } // end if GetMap() | |
809 | } // end for j | |
810 | if(GetDebug(3)){ | |
811 | cout<<iz<<","<<ix<<","<<*(GetMap()->GetpListItem(iz,ix))<<endl; | |
812 | } // end if GetDebug | |
813 | aliITS->AddSimDigit(0,&dig); | |
814 | } // for ix/iz | |
c7a4dac0 | 815 | } |
816 | //______________________________________________________________________ | |
5bfe44ce | 817 | void AliITSsimulationSPD::CreateHistograms(){ |
20eef074 | 818 | // create 1D histograms for tests |
819 | // Inputs: | |
820 | // none. | |
821 | // Outputs: | |
822 | // none. | |
823 | // Return: | |
824 | // none. | |
825 | ||
826 | if(GetDebug(1)) Info("CreateHistograms","create histograms"); | |
827 | ||
828 | fHis = new TObjArray(GetNPixelsZ()); | |
829 | fSPDname="spd_"; | |
830 | for(Int_t i=0;i<GetNPixelsZ();i++) { | |
831 | Char_t pixelz[4]; | |
832 | sprintf(pixelz,"%d",i); | |
833 | fSPDname.Append(pixelz); | |
834 | fHis->AddAt(new TH1F(fSPDname.Data(),"SPD maps", | |
835 | GetNPixelsX(),0.,(Double_t)GetNPixelsX()),i); | |
836 | } // end for i | |
c7a4dac0 | 837 | } |
838 | //______________________________________________________________________ | |
5bfe44ce | 839 | void AliITSsimulationSPD::FillHistograms(Int_t ix,Int_t iz,Double_t v){ |
20eef074 | 840 | // Fill the histogram |
841 | // Inputs: | |
842 | // none. | |
843 | // Outputs: | |
844 | // none. | |
845 | // Return: | |
846 | // none. | |
847 | ||
848 | if(!GetHistArray()) return; // Only fill if setup. | |
849 | if(GetDebug(2)) Info("FillHistograms","fill histograms"); | |
850 | GetHistogram(iz)->Fill(ix,v); | |
c7a4dac0 | 851 | } |
852 | //______________________________________________________________________ | |
5bfe44ce | 853 | void AliITSsimulationSPD::ResetHistograms(){ |
20eef074 | 854 | // Reset histograms for this detector |
855 | // Inputs: | |
856 | // none. | |
857 | // Outputs: | |
858 | // none. | |
859 | // Return: | |
860 | // none. | |
861 | ||
862 | if(!GetHistArray()) return; // Only fill if setup. | |
863 | if(GetDebug(2)) Info("FillHistograms","fill histograms"); | |
864 | for ( int i=0;i<GetNPixelsZ();i++ ) { | |
865 | if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset(); | |
866 | } // end for i | |
21b825a4 | 867 | } |
5bfe44ce | 868 | |
c7a4dac0 | 869 | //______________________________________________________________________ |
590d15ee | 870 | void AliITSsimulationSPD::SetCoupling(Int_t col, Int_t row, Int_t ntrack, |
5bfe44ce | 871 | Int_t idhit) { |
20eef074 | 872 | // Take into account the coupling between adiacent pixels. |
873 | // The parameters probcol and probrow are the probability of the | |
874 | // signal in one pixel shared in the two adjacent pixels along | |
875 | // the column and row direction, respectively. | |
876 | // Note pList is goten via GetMap() and module is not need any more. | |
877 | // Otherwise it is identical to that coded by Tiziano Virgili (BSN). | |
878 | //Begin_Html | |
879 | /* | |
880 | <img src="picts/ITS/barimodel_3.gif"> | |
881 | </pre> | |
882 | <br clear=left> | |
883 | <font size=+2 color=red> | |
884 | <a href="mailto:tiziano.virgili@cern.ch"></a>. | |
885 | </font> | |
886 | <pre> | |
887 | */ | |
888 | //End_Html | |
889 | // Inputs: | |
890 | // Int_t col z cell index | |
891 | // Int_t row x cell index | |
892 | // Int_t ntrack track incex number | |
893 | // Int_t idhit hit index number | |
894 | // Outputs: | |
895 | // none. | |
896 | // Return: | |
897 | // none. | |
898 | Int_t j1,j2,flag=0; | |
899 | Double_t pulse1,pulse2; | |
900 | Double_t couplR=0.0,couplC=0.0; | |
901 | Double_t xr=0.; | |
902 | ||
903 | GetCouplings(couplC,couplR); | |
904 | if(GetDebug(3)) Info("SetCoupling","(col=%d,row=%d,ntrack=%d,idhit=%d) " | |
905 | "Calling SetCoupling couplC=%e couplR=%e", | |
906 | col,row,ntrack,idhit,couplC,couplR); | |
907 | j1 = col; | |
908 | j2 = row; | |
909 | pulse1 = GetMap()->GetSignalOnly(col,row); | |
910 | pulse2 = pulse1; | |
911 | for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction | |
912 | do{ | |
913 | j1 += isign; | |
914 | xr = gRandom->Rndm(); | |
915 | if ((j1<0) || (j1>GetNPixelsZ()-1) || (xr>couplC)){ | |
916 | j1 = col; | |
917 | flag = 1; | |
918 | }else{ | |
919 | UpdateMapSignal(row,j1,ntrack,idhit,pulse1); | |
920 | // flag = 0; | |
921 | flag = 1; // only first next!! | |
922 | } // end if | |
923 | } while(flag == 0); | |
924 | // loop in row direction | |
925 | do{ | |
926 | j2 += isign; | |
927 | xr = gRandom->Rndm(); | |
928 | if ((j2<0) || (j2>GetNPixelsX()-1) || (xr>couplR)){ | |
929 | j2 = row; | |
930 | flag = 1; | |
931 | }else{ | |
932 | UpdateMapSignal(j2,col,ntrack,idhit,pulse2); | |
933 | // flag = 0; | |
934 | flag = 1; // only first next!! | |
935 | } // end if | |
936 | } while(flag == 0); | |
937 | } // for isign | |
f8d9a5b8 | 938 | } |
939 | //______________________________________________________________________ | |
590d15ee | 940 | void AliITSsimulationSPD::SetCouplingOld(Int_t col, Int_t row, |
20eef074 | 941 | Int_t ntrack,Int_t idhit) { |
942 | // Take into account the coupling between adiacent pixels. | |
943 | // The parameters probcol and probrow are the fractions of the | |
944 | // signal in one pixel shared in the two adjacent pixels along | |
945 | // the column and row direction, respectively. | |
946 | //Begin_Html | |
947 | /* | |
948 | <img src="picts/ITS/barimodel_3.gif"> | |
949 | </pre> | |
950 | <br clear=left> | |
951 | <font size=+2 color=red> | |
952 | <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>. | |
953 | </font> | |
954 | <pre> | |
955 | */ | |
956 | //End_Html | |
957 | // Inputs: | |
958 | // Int_t col z cell index | |
959 | // Int_t row x cell index | |
960 | // Int_t ntrack track incex number | |
961 | // Int_t idhit hit index number | |
962 | // Int_t module module number | |
963 | // Outputs: | |
964 | // none. | |
965 | // Return: | |
966 | // none. | |
967 | Int_t j1,j2,flag=0; | |
968 | Double_t pulse1,pulse2; | |
969 | Double_t couplR=0.0,couplC=0.0; | |
970 | ||
971 | GetCouplings(couplC,couplR); | |
972 | ||
973 | // Debugging ... | |
5bfe44ce | 974 | // cout << "Threshold --> " << GetThreshold() << endl; // dom |
8e2f60b2 | 975 | // cout << "Couplings --> " << couplC << " " << couplR << endl; // dom |
5bfe44ce | 976 | |
20eef074 | 977 | if(GetDebug(3)) Info("SetCouplingOld","(col=%d,row=%d,ntrack=%d,idhit=%d) " |
978 | "Calling SetCoupling couplC=%e couplR=%e", | |
979 | col,row,ntrack,idhit,couplC,couplR); | |
980 | for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction | |
981 | pulse1 = GetMap()->GetSignalOnly(col,row); | |
982 | pulse2 = pulse1; | |
983 | j1 = col; | |
984 | j2 = row; | |
985 | do{ | |
986 | j1 += isign; | |
987 | pulse1 *= couplC; | |
988 | if ((j1<0)||(j1>GetNPixelsZ()-1)||(pulse1<GetThreshold())){ | |
989 | pulse1 = GetMap()->GetSignalOnly(col,row); | |
990 | j1 = col; | |
991 | flag = 1; | |
992 | }else{ | |
993 | UpdateMapSignal(row,j1,ntrack,idhit,pulse1); | |
994 | // flag = 0; | |
995 | flag = 1; // only first next !! | |
996 | } // end if | |
997 | } while(flag == 0); | |
998 | // loop in row direction | |
999 | do{ | |
1000 | j2 += isign; | |
1001 | pulse2 *= couplR; | |
1002 | if((j2<0)||(j2>(GetNPixelsX()-1))||(pulse2<GetThreshold())){ | |
1003 | pulse2 = GetMap()->GetSignalOnly(col,row); | |
1004 | j2 = row; | |
1005 | flag = 1; | |
1006 | }else{ | |
1007 | UpdateMapSignal(j2,col,ntrack,idhit,pulse2); | |
1008 | // flag = 0; | |
1009 | flag = 1; // only first next!! | |
1010 | } // end if | |
1011 | } while(flag == 0); | |
1012 | } // for isign | |
21b825a4 | 1013 | } |
20eef074 | 1014 | //______________________________________________________________________ |
1015 | void AliITSsimulationSPD::GenerateStrobePhase() | |
1016 | { | |
1017 | // Generate randomly the strobe | |
1018 | // phase w.r.t to the LHC clock | |
1019 | // Done once per event | |
1020 | const Double_t kBunchLenght = 25e-9; // LHC clock | |
1021 | fStrobePhase = ((Double_t)gRandom->Integer(fStrobeLenght))*kBunchLenght- | |
1022 | (Double_t)fStrobeLenght*kBunchLenght+ | |
1023 | kBunchLenght/2; | |
1024 | } | |
1025 |