1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
20 #include <Riostream.h>
24 #include "AliITSdigitSPD.h"
25 #include "AliITShit.h"
26 #include "AliITSmodule.h"
27 #include "AliITSpList.h"
28 #include "AliITSCalibrationSPD.h"
29 #include "AliITSsegmentationSPD.h"
30 #include "AliITSsimulationSPD.h"
33 #include "AliCDBEntry.h"
34 #include "AliCDBLocal.h"
38 ClassImp(AliITSsimulationSPD)
39 ////////////////////////////////////////////////////////////////////////
41 // Modified by D. Elia, G.E. Bruno, H. Tydesjo
42 // Fast diffusion code by Bjorn S. Nilsen
46 // Written by Boris Batyunya
50 // AliITSsimulationSPD is to do the simulation of SPDs.
52 ////////////////////////////////////////////////////////////////////////
54 //______________________________________________________________________
55 AliITSsimulationSPD::AliITSsimulationSPD():
60 // Default constructor.
66 // A default constructed AliITSsimulationSPD class.
68 AliDebug(1,Form("Calling default constructor"));
71 //______________________________________________________________________
72 AliITSsimulationSPD::AliITSsimulationSPD(AliITSDetTypeSim *dettyp):
73 AliITSsimulation(dettyp),
77 // standard constructor
79 // AliITSsegmentation *seg A pointer to the segmentation class
80 // to be used for this simulation
81 // AliITSCalibration *resp A pointer to the responce class to
82 // be used for this simulation
86 // A default constructed AliITSsimulationSPD class.
88 AliDebug(1,Form("Calling standard constructor "));
89 // AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
90 // res->SetTemperature(0.0);
91 // res->SetDistanceOverVoltage(0.0);
94 //______________________________________________________________________
95 void AliITSsimulationSPD::Init(){
103 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
107 SetMap(new AliITSpList(GetNPixelsZ(),GetNPixelsX()));
108 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
109 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
110 Double_t bias = res->GetBiasVoltage();
111 // cout << "Bias Voltage --> " << bias << endl; // dom
112 res->SetDistanceOverVoltage(kmictocm*seg->Dy(),bias);
113 // set kind of coupling ("old" or "new")
115 res->GetCouplingOption(opt);
116 char *old = strstr(opt,"old");
123 // Get the calibration objects for each module(ladder)
124 GetCalibrationObjects(0); //RunNr 0 hard coded for now
127 //______________________________________________________________________
128 AliITSsimulationSPD::~AliITSsimulationSPD(){
142 //______________________________________________________________________
143 AliITSsimulationSPD::AliITSsimulationSPD(const
145 &s) : AliITSsimulation(s),
147 fSPDname(s.fSPDname),
148 fCoupling(s.fCoupling){
151 // AliITSsimulationSPD &s The original class for which
152 // this class is a copy of
158 //______________________________________________________________________
159 AliITSsimulationSPD& AliITSsimulationSPD::operator=(const
160 AliITSsimulationSPD &s){
161 // Assignment operator
163 // AliITSsimulationSPD &s The original class for which
164 // this class is a copy of
169 if(&s == this) return *this;
171 fCoupling = s.fCoupling;
172 fSPDname = s.fSPDname;
175 //______________________________________________________________________
176 AliITSsimulation& AliITSsimulationSPD::operator=(const
177 AliITSsimulation &s){
178 // Assignment operator
180 // AliITSsimulationSPD &s The original class for which
181 // this class is a copy of
186 if(&s == this) return *this;
187 Error("AliITSsimulationSPD","Not allowed to make a = with "
188 "AliITSsimulationSPD","Using default creater instead");
193 //______________________________________________________________________
194 void AliITSsimulationSPD::GetCalibrationObjects(Int_t RunNr) {
195 // Gets the calibration objects for each module (ladder)
197 // RunNr: hard coded to RunNr=0 for now
203 AliCDBManager* man = AliCDBManager::Instance();
205 AliCDBEntry *entrySPD=0;
206 entrySPD = man->Get("ITS/Calib/CalibSPD", RunNr);
209 AliFatal("Cannot find SPD calibration entry in default storage!");
213 TObjArray *respSPD = (TObjArray *)entrySPD->GetObject();
215 AliFatal("Cannot get data from SPD database entry!");
218 for (Int_t mod=0; mod<240; mod++) {
219 fCalObj[mod] = (AliITSCalibrationSPD*) respSPD->At(mod);
223 //______________________________________________________________________
224 void AliITSsimulationSPD::InitSimulationModule(Int_t module, Int_t event){
225 // This function creates maps to build the list of tracks for each
226 // summable digit. Inputs defined by base class.
228 // Int_t module // Module number to be simulated
229 // Int_t event // Event number to be simulated
235 AliDebug(1,Form("(module=%d,event=%d)",module,event));
236 SetModuleNumber(module);
237 SetEventNumber(event);
240 //_____________________________________________________________________
241 void AliITSsimulationSPD::SDigitiseModule(AliITSmodule *mod,Int_t,
243 // This function begins the work of creating S-Digits. Inputs defined
246 // AliITSmodule *mod // module
248 // Int_t event // Event number
252 // test // test returns kTRUE if the module contained hits
253 // // test returns kFALSE if it did not contain hits
255 AliDebug(1,Form("(mod=%p, ,event=%d)",mod,event));
256 if(!(mod->GetNhits())){
257 AliDebug(1,Form("In event %d module %d there are %d hits returning.",
258 event, mod->GetIndex(),mod->GetNhits()));
259 return;// if module has no hits don't create Sdigits
261 SetModuleNumber(mod->GetIndex());
262 SetEventNumber(event);
264 HitToSDigitFast(mod);
265 RemoveDeadPixels(mod);
266 // cout << "After Remove in SDigitiseModule !!!!!" << endl; // dom
267 // cout << "Module " << mod->GetIndex() << " Event " << event << endl; // dom
271 //______________________________________________________________________
272 void AliITSsimulationSPD::WriteSDigits(){
273 // This function adds each S-Digit to pList
280 Int_t ix, nix, iz, niz;
281 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
283 AliDebug(1,Form("Writing SDigits for module %d",GetModuleNumber()));
284 // cout << "WriteSDigits for module " << GetModuleNumber() << endl; // dom
285 GetMap()->GetMaxMapIndex(niz, nix);
286 for(iz=0; iz<niz; iz++)for(ix=0; ix<nix; ix++){
287 if(GetMap()->GetSignalOnly(iz,ix)>0.0){
288 // cout << " Signal gt 0 iz ix " << iz << ix << " Module " << GetModuleNumber() << endl; // dom
289 aliITS->AddSumDigit(*(GetMap()->GetpListItem(iz,ix)));
290 if(AliDebugLevel()>0) {
291 AliDebug(1,Form("%d, %d",iz,ix));
292 cout << *(GetMap()->GetpListItem(iz,ix)) << endl;
294 } // end if GetMap()->GetSignalOnly(iz,ix)>0.0
298 //______________________________________________________________________
299 void AliITSsimulationSPD::FinishSDigitiseModule(){
300 // This function calls SDigitsToDigits which creates Digits from SDigits
309 // cout << "FinishSDigitiseModule for module " << GetModuleNumber() << endl; // dom
310 FrompListToDigits(); // Charge To Signal both adds noise and
314 //______________________________________________________________________
315 void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod,Int_t,
317 // This function creates Digits straight from the hits and then adds
318 // electronic noise to the digits before adding them to pList
319 // Each of the input variables is passed along to HitToSDigit
321 // AliITSmodule *mod module
329 AliDebug(1,Form("(mod=%p,,)",mod));
331 HitToSDigitFast(mod);
332 RemoveDeadPixels(mod);
333 // cout << "After Remove in DigitiseModule in module " << mod->GetIndex() << endl; // dom
337 //______________________________________________________________________
338 void AliITSsimulationSPD::HitToSDigit(AliITSmodule *mod){
339 // Does the charge distributions using Gaussian diffusion charge charing.
341 // AliITSmodule *mod Pointer to this module
346 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
347 TObjArray *hits = mod->GetHits();
348 Int_t nhits = hits->GetEntriesFast();
351 Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
352 Double_t x,y,z,t,tp,st,dt=0.2,el,sig,sigx,sigz,fda;
353 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
354 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
355 Double_t thick = 0.5*kmictocm*seg->Dy(); // Half Thickness
356 res->GetSigmaDiffusionAsymmetry(fda);
358 AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling));
360 for(h=0;h<nhits;h++){
361 if(AliDebugLevel()>0) {
362 AliDebug(1,Form("Hits, %d", h));
363 cout << *(mod->GetHit(h)) << endl;
365 if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue;
366 st = TMath::Sqrt(x1*x1+y1*y1+z1*z1);
368 st = (Double_t)((Int_t)(st/kmictocm)); // number of microns
369 if(st<=1.0) st = 1.0;
371 for(t=0.0;t<1.0;t+=dt){ // Integrate over t
376 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
377 el = res->GeVToCharge((Double_t)(dt*de));
379 if(el<=0.0) cout<<"el="<<el<<" dt="<<dt
382 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
383 // SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
386 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
387 cout << "sigx, sigz, y "<< sigx << " " << sigz<< " " << TMath::Abs(thick + y) << endl;// ciccio
389 } else { // st == 0.0 deposit it at this point
393 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
394 el = res->GeVToCharge((Double_t)de);
395 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
396 // SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
399 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
402 } // Loop over all hits h
409 for(i=0;i<GetMap()->GetEntries();i++)
410 if(GetMap()->GetpListItem(i)==0) continue;
412 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
413 SetCoupling(iz,ix,idtrack,h);
417 for(i=0;i<GetMap()->GetEntries();i++)
418 if(GetMap()->GetpListItem(i)==0) continue;
420 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
421 SetCouplingOld(iz,ix,idtrack,h);
425 if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling);
427 //______________________________________________________________________
428 void AliITSsimulationSPD::HitToSDigitFast(AliITSmodule *mod){
429 // Does the charge distributions using Gaussian diffusion charge charing. // Inputs:
430 // AliITSmodule *mod Pointer to this module
435 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
437 const Double_t kti[kn10]={7.443716945e-3,2.166976971e-1,3.397047841e-1,
438 4.325316833e-1,4.869532643e-1,5.130467358e-1,
439 5.674683167e-1,6.602952159e-1,7.833023029e-1,
441 const Double_t kwi[kn10]={1.477621124e-1,1.346333597e-1,1.095431813e-1,
442 7.472567455e-2,3.333567215e-2,3.333567215e-2,
443 7.472567455e-2,1.095431813e-1,1.346333597e-1,
445 TObjArray *hits = mod->GetHits();
446 Int_t nhits = hits->GetEntriesFast();
449 Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
450 Double_t x,y,z,t,st,el,sig,sigx,sigz,fda;
451 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
452 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
453 Double_t thick = 0.5*kmictocm*seg->Dy(); // Half thickness
454 res->GetSigmaDiffusionAsymmetry(fda);
455 // cout << "Half Thickness " << thick << endl; // dom
456 // cout << "Diffusion asymm " << fda << endl; // dom
458 AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling));
460 for(h=0;h<nhits;h++){
461 if(AliDebugLevel()>0) {
462 AliDebug(1,Form("Hits, %d", h));
463 cout << *(mod->GetHit(h)) << endl;
465 if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue;
466 st = TMath::Sqrt(x1*x1+y1*y1+z1*z1);
467 if(st>0.0) for(i=0;i<kn10;i++){ // Integrate over t
472 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
473 // el = res->GeVToCharge((Double_t)(dt*de));
474 // el = 1./kn10*res->GeVToCharge((Double_t)de);
475 el = kwi[i]*res->GeVToCharge((Double_t)de);
477 if(el<=0.0) cout<<"el="<<el<<" kwi["<<i<<"]="<<kwi[i]
480 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
483 //SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
484 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
485 // cout << "sigx sigz " << sigx << " " << sigz << endl; // dom
486 } // end for i // End Integrate over t
487 else { // st == 0.0 deposit it at this point
491 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
492 el = res->GeVToCharge((Double_t)de);
493 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
494 //SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
497 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
500 } // Loop over all hits h
507 for(i=0;i<GetMap()->GetEntries();i++)
508 if(GetMap()->GetpListItem(i)==0) continue;
510 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
511 SetCoupling(iz,ix,idtrack,h);
515 for(i=0;i<GetMap()->GetEntries();i++)
516 if(GetMap()->GetpListItem(i)==0) continue;
518 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
519 SetCouplingOld(iz,ix,idtrack,h);
523 if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling);
525 //______________________________________________________________________
526 void AliITSsimulationSPD::SpreadCharge(Double_t x0,Double_t z0,
528 Double_t el,Double_t sig,Int_t t,
530 // Spreads the charge over neighboring cells. Assume charge is distributed
531 // as charge(x,z) = (el/2*pi*sig*sig)*exp(-arg)
532 // arg=((x-x0)*(x-x0)/2*sig*sig)+((z-z0*z-z0)/2*sig*sig)
533 // Defined this way, the integral over all x and z is el.
535 // Double_t x0 x position of point where charge is liberated
536 // Double_t y0 y position of point where charge is liberated
537 // Double_t z0 z position of point where charge is liberated
538 // Int_t ix0 row of cell corresponding to point x0
539 // Int_t iz0 columb of cell corresponding to point z0
540 // Double_t el number of electrons liberated in this step
541 // Double_t sig Sigma difusion for this step (y0 dependent)
542 // Int_t t track number
543 // Int_t ti hit track index number
544 // Int_t hi hit "hit" index number
549 const Int_t knx = 3,knz = 2;
550 const Double_t kRoot2 = 1.414213562; // Sqrt(2).
551 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
552 Int_t ix,iz,ixs,ixe,izs,ize;
554 Double_t x1,x2,z1,z2,s,sp;
555 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
558 if(GetDebug(4)) Info("SpreadCharge","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e,"
559 "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sig,t,hi);
560 if(sig<=0.0) { // if sig<=0 No diffusion to simulate.
561 GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el);
563 cout << "sig<=0.0=" << sig << endl;
567 sp = 1.0/(sig*kRoot2);
569 cout << "sig=" << sig << " sp=" << sp << endl;
571 ixs = TMath::Max(-knx+ix0,0);
572 ixe = TMath::Min(knx+ix0,seg->Npx()-1);
573 izs = TMath::Max(-knz+iz0,0);
574 ize = TMath::Min(knz+iz0,seg->Npz()-1);
575 for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){
576 seg->DetToLocal(ix,iz,x,z); // pixel center
579 x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper
580 x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower
581 z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper
582 z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower
583 x1 -= x0; // Distance from where track traveled
584 x2 -= x0; // Distance from where track traveled
585 z1 -= z0; // Distance from where track traveled
586 z2 -= z0; // Distance from where track traveled
587 s = 0.25; // Correction based on definision of Erfc
588 s *= TMath::Erfc(sp*x1) - TMath::Erfc(sp*x2);
590 cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<<
591 " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<<
592 " sp*x1="<<sp*x1<<" sp*x2="<<sp*x2<<" s="<<s;
594 s *= TMath::Erfc(sp*z1) - TMath::Erfc(sp*z2);
596 cout<<" sp*z1="<<sp*z1<<" sp*z2="<<sp*z2<<" s="<<s<< endl;
598 GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el);
601 //______________________________________________________________________
602 void AliITSsimulationSPD::SpreadChargeAsym(Double_t x0,Double_t z0,
604 Double_t el,Double_t sigx,Double_t sigz,
606 // Spreads the charge over neighboring cells. Assume charge is distributed
607 // as charge(x,z) = (el/2*pi*sigx*sigz)*exp(-arg)
608 // arg=((x-x0)*(x-x0)/2*sigx*sigx)+((z-z0*z-z0)/2*sigz*sigz)
609 // Defined this way, the integral over all x and z is el.
611 // Double_t x0 x position of point where charge is liberated
612 // Double_t y0 y position of point where charge is liberated
613 // Double_t z0 z position of point where charge is liberated
614 // Int_t ix0 row of cell corresponding to point x0
615 // Int_t iz0 columb of cell corresponding to point z0
616 // Double_t el number of electrons liberated in this step
617 // Double_t sigx Sigma difusion along x for this step (y0 dependent)
618 // Double_t sigz Sigma difusion along z for this step (y0 dependent)
619 // Int_t t track number
620 // Int_t ti hit track index number
621 // Int_t hi hit "hit" index number
626 const Int_t knx = 3,knz = 2;
627 const Double_t kRoot2 = 1.414213562; // Sqrt(2).
628 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
629 Int_t ix,iz,ixs,ixe,izs,ize;
631 Double_t x1,x2,z1,z2,s,spx,spz;
632 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
635 if(GetDebug(4)) Info("SpreadCharge","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e,"
636 "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sigx,sigz,t,hi);
637 if(sigx<=0.0 || sigz<=0.0) { // if sig<=0 No diffusion to simulate.
638 GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el);
640 cout << "sigx<=0.0=" << sigx << endl;
641 cout << "sigz<=0.0=" << sigz << endl;
645 spx = 1.0/(sigx*kRoot2); spz = 1.0/(sigz*kRoot2);
647 cout << "sigx=" << sigx << " spx=" << spx << endl;
648 cout << "sigz=" << sigz << " spz=" << spz << endl;
650 ixs = TMath::Max(-knx+ix0,0);
651 ixe = TMath::Min(knx+ix0,seg->Npx()-1);
652 izs = TMath::Max(-knz+iz0,0);
653 ize = TMath::Min(knz+iz0,seg->Npz()-1);
654 for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){
655 seg->DetToLocal(ix,iz,x,z); // pixel center
658 x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper
659 x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower
660 z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper
661 z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower
662 x1 -= x0; // Distance from where track traveled
663 x2 -= x0; // Distance from where track traveled
664 z1 -= z0; // Distance from where track traveled
665 z2 -= z0; // Distance from where track traveled
666 s = 0.25; // Correction based on definision of Erfc
667 s *= TMath::Erfc(spx*x1) - TMath::Erfc(spx*x2);
669 cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<<
670 " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<<
671 " spx*x1="<<spx*x1<<" spx*x2="<<spx*x2<<" s="<<s;
673 s *= TMath::Erfc(spz*z1) - TMath::Erfc(spz*z2);
675 cout<<" spz*z1="<<spz*z1<<" spz*z2="<<spz*z2<<" s="<<s<< endl;
677 GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el);
680 //______________________________________________________________________
681 void AliITSsimulationSPD::RemoveDeadPixels(AliITSmodule *mod){
682 // Removes dead pixels on each module (ladder)
684 // Module Index (0,239)
690 Int_t moduleNr = mod->GetIndex();
691 Int_t nrDead = fCalObj[moduleNr]->GetNrDead();
692 for (Int_t i=0; i<nrDead; i++) {
693 GetMap()->DeleteHit(fCalObj[moduleNr]->GetDeadColAt(i),fCalObj[moduleNr]->GetDeadRowAt(i));
696 //______________________________________________________________________
697 void AliITSsimulationSPD::FrompListToDigits(){
698 // add noise and electronics, perform the zero suppression and add the
706 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
708 Double_t electronics;
710 const Int_t knmaxtrk=AliITSdigit::GetNTracks();
711 static AliITSdigitSPD dig;
712 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
713 if(GetDebug(1)) Info("FrompListToDigits","()");
714 for(iz=0; iz<GetNPixelsZ(); iz++) for(ix=0; ix<GetNPixelsX(); ix++){
715 // NEW (for the moment plugged by hand, in the future possibly read from Data Base)
716 // here parametrize the efficiency of the pixel along the row for the test columns (1,9,17,25)
717 // if(iz==1 || iz == 9 || iz == 17 || iz == 25) {
718 // Double_t eff,p1=0.,p2=0.;
721 // case 1: p1=0.63460;p2=0.42438E-01;break;
722 // case 9: p1=0.41090;p2=0.75914E-01;break;
723 // case 17: p1=0.31883;p2=0.91502E-01;break;
724 // case 25: p1=0.48828;p2=0.57975E-01;break;
726 // eff=1.-p1*exp(-p2*x);
727 // if (gRandom->Rndm() >= eff) continue;
729 // END parametrize the efficiency
731 electronics = res->ApplyBaselineAndNoise();
732 UpdateMapNoise(ix,iz,electronics);
734 // Apply Threshold and write Digits.
735 sig = GetMap()->GetSignalOnly(iz,ix);
736 FillHistograms(ix,iz,sig+electronics);
738 cout<<sig<<"+"<<electronics<<">threshold("<<ix<<","<<iz
739 <<")="<<GetThreshold() <<endl;
741 if (sig+electronics <= GetThreshold()) continue;
746 // dig.SetSignalSPD((Int_t) GetMap()->GetSignal(iz,ix));
747 Double_t aSignal = GetMap()->GetSignal(iz,ix);
748 if (TMath::Abs(aSignal)>2147483647.0) {
749 //PH 2147483647 is the max. integer
750 //PH This apparently is a problem which needs investigation
751 AliWarning(Form("Too big or too small signal value %f",aSignal));
752 aSignal = TMath::Sign((Double_t)2147483647,aSignal);
754 dig.SetSignalSPD((Int_t)aSignal);
756 for(j=0;j<knmaxtrk;j++){
757 if (j<GetMap()->GetNEntries()) {
758 dig.SetTrack(j,GetMap()->GetTrack(iz,ix,j));
759 dig.SetHit(j,GetMap()->GetHit(iz,ix,j));
760 }else { // Default values
766 cout<<iz<<","<<ix<<","<<*(GetMap()->GetpListItem(iz,ix))<<endl;
768 aliITS->AddSimDigit(0,&dig);
771 //______________________________________________________________________
772 void AliITSsimulationSPD::CreateHistograms(){
773 // create 1D histograms for tests
781 if(GetDebug(1)) Info("CreateHistograms","create histograms");
783 fHis = new TObjArray(GetNPixelsZ());
784 TString fSPDname("spd_");
785 for(Int_t i=0;i<GetNPixelsZ();i++) {
787 sprintf(pixelz,"%d",i);
788 fSPDname.Append(pixelz);
789 fHis->AddAt(new TH1F(fSPDname.Data(),"SPD maps",
790 GetNPixelsX(),0.,(Double_t)GetNPixelsX()),i);
793 //______________________________________________________________________
794 void AliITSsimulationSPD::FillHistograms(Int_t ix,Int_t iz,Double_t v){
795 // Fill the histogram
803 if(!GetHistArray()) return; // Only fill if setup.
804 if(GetDebug(2)) Info("FillHistograms","fill histograms");
805 GetHistogram(iz)->Fill(ix,v);
807 //______________________________________________________________________
808 void AliITSsimulationSPD::ResetHistograms(){
809 // Reset histograms for this detector
817 if(!GetHistArray()) return; // Only fill if setup.
818 if(GetDebug(2)) Info("FillHistograms","fill histograms");
819 for ( int i=0;i<GetNPixelsZ();i++ ) {
820 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
824 //______________________________________________________________________
825 void AliITSsimulationSPD::SetCoupling(Int_t col, Int_t row, Int_t ntrack,
827 // Take into account the coupling between adiacent pixels.
828 // The parameters probcol and probrow are the probability of the
829 // signal in one pixel shared in the two adjacent pixels along
830 // the column and row direction, respectively.
831 // Note pList is goten via GetMap() and module is not need any more.
832 // Otherwise it is identical to that coded by Tiziano Virgili (BSN).
835 <img src="picts/ITS/barimodel_3.gif">
838 <font size=+2 color=red>
839 <a href="mailto:tiziano.virgili@cern.ch"></a>.
845 // Int_t col z cell index
846 // Int_t row x cell index
847 // Int_t ntrack track incex number
848 // Int_t idhit hit index number
854 Double_t pulse1,pulse2;
855 Double_t couplR=0.0,couplC=0.0;
858 GetCouplings(couplC,couplR);
859 if(GetDebug(3)) Info("SetCoupling","(col=%d,row=%d,ntrack=%d,idhit=%d) "
860 "Calling SetCoupling couplC=%e couplR=%e",
861 col,row,ntrack,idhit,couplC,couplR);
864 pulse1 = GetMap()->GetSignalOnly(col,row);
866 for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction
869 xr = gRandom->Rndm();
870 if ((j1<0) || (j1>GetNPixelsZ()-1) || (xr>couplC)){
874 UpdateMapSignal(row,j1,ntrack,idhit,pulse1);
876 flag = 1; // only first next!!
879 // loop in row direction
882 xr = gRandom->Rndm();
883 if ((j2<0) || (j2>GetNPixelsX()-1) || (xr>couplR)){
887 UpdateMapSignal(j2,col,ntrack,idhit,pulse2);
889 flag = 1; // only first next!!
894 //______________________________________________________________________
895 void AliITSsimulationSPD::SetCouplingOld(Int_t col, Int_t row,
896 Int_t ntrack,Int_t idhit) {
897 // Take into account the coupling between adiacent pixels.
898 // The parameters probcol and probrow are the fractions of the
899 // signal in one pixel shared in the two adjacent pixels along
900 // the column and row direction, respectively.
903 <img src="picts/ITS/barimodel_3.gif">
906 <font size=+2 color=red>
907 <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
913 // Int_t col z cell index
914 // Int_t row x cell index
915 // Int_t ntrack track incex number
916 // Int_t idhit hit index number
917 // Int_t module module number
923 Double_t pulse1,pulse2;
924 Double_t couplR=0.0,couplC=0.0;
926 GetCouplings(couplC,couplR);
929 // cout << "Threshold --> " << GetThreshold() << endl; // dom
930 // cout << "Couplings --> " << couplC << " " << couplR << endl; //dom
933 if(GetDebug(3)) Info("SetCouplingOld","(col=%d,row=%d,ntrack=%d,idhit=%d) "
934 "Calling SetCoupling couplC=%e couplR=%e",
935 col,row,ntrack,idhit,couplC,couplR);
936 for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction
937 pulse1 = GetMap()->GetSignalOnly(col,row);
944 if ((j1<0)||(j1>GetNPixelsZ()-1)||(pulse1<GetThreshold())){
945 pulse1 = GetMap()->GetSignalOnly(col,row);
949 UpdateMapSignal(row,j1,ntrack,idhit,pulse1);
951 flag = 1; // only first next !!
954 // loop in row direction
958 if((j2<0)||(j2>(GetNPixelsX()-1))||(pulse2<GetThreshold())){
959 pulse2 = GetMap()->GetSignalOnly(col,row);
963 UpdateMapSignal(j2,col,ntrack,idhit,pulse2);
965 flag = 1; // only first next!!