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){
148 // AliITSsimulationSPD &s The original class for which
149 // this class is a copy of
157 //______________________________________________________________________
158 AliITSsimulationSPD& AliITSsimulationSPD::operator=(const
159 AliITSsimulationSPD &s){
160 // Assignment operator
162 // AliITSsimulationSPD &s The original class for which
163 // this class is a copy of
168 if(&s == this) return *this;
170 fCoupling = s.fCoupling;
171 fSPDname = s.fSPDname;
174 //______________________________________________________________________
175 AliITSsimulation& AliITSsimulationSPD::operator=(const
176 AliITSsimulation &s){
177 // Assignment operator
179 // AliITSsimulationSPD &s The original class for which
180 // this class is a copy of
185 if(&s == this) return *this;
186 Error("AliITSsimulationSPD","Not allowed to make a = with "
187 "AliITSsimulationSPD","Using default creater instead");
192 //______________________________________________________________________
193 void AliITSsimulationSPD::GetCalibrationObjects(Int_t RunNr) {
194 // Gets the calibration objects for each module (ladder)
196 // RunNr: hard coded to RunNr=0 for now
202 AliCDBManager* man = AliCDBManager::Instance();
203 if(!man->IsDefaultStorageSet()) {
204 man->SetDefaultStorage("local://$ALICE_ROOT");
206 AliCDBEntry *entrySPD = man->Get("ITS/Calib/CalibSPD", RunNr);
208 AliWarning("Cannot find SPD calibration entry!");
211 TObjArray *respSPD = (TObjArray *)entrySPD->GetObject();
213 AliWarning("Cannot get data from SPD database entry!");
216 for (Int_t mod=0; mod<240; mod++) {
217 fCalObj[mod] = (AliITSCalibrationSPD*) respSPD->At(mod);
221 //______________________________________________________________________
222 void AliITSsimulationSPD::InitSimulationModule(Int_t module, Int_t event){
223 // This function creates maps to build the list of tracks for each
224 // summable digit. Inputs defined by base class.
226 // Int_t module // Module number to be simulated
227 // Int_t event // Event number to be simulated
233 AliDebug(1,Form("(module=%d,event=%d)",module,event));
234 SetModuleNumber(module);
235 SetEventNumber(event);
238 //_____________________________________________________________________
239 void AliITSsimulationSPD::SDigitiseModule(AliITSmodule *mod,Int_t,
241 // This function begins the work of creating S-Digits. Inputs defined
244 // AliITSmodule *mod // module
246 // Int_t event // Event number
250 // test // test returns kTRUE if the module contained hits
251 // // test returns kFALSE if it did not contain hits
253 AliDebug(1,Form("(mod=%p, ,event=%d)",mod,event));
254 if(!(mod->GetNhits())){
255 AliDebug(1,Form("In event %d module %d there are %d hits returning.",
256 event, mod->GetIndex(),mod->GetNhits()));
257 return;// if module has no hits don't create Sdigits
259 SetModuleNumber(mod->GetIndex());
260 SetEventNumber(event);
262 HitToSDigitFast(mod);
263 RemoveDeadPixels(mod);
264 // cout << "After Remove in SDigitiseModule !!!!!" << endl; // dom
265 // cout << "Module " << mod->GetIndex() << " Event " << event << endl; // dom
269 //______________________________________________________________________
270 void AliITSsimulationSPD::WriteSDigits(){
271 // This function adds each S-Digit to pList
278 Int_t ix, nix, iz, niz;
279 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
281 AliDebug(1,Form("Writing SDigits for module %d",GetModuleNumber()));
282 // cout << "WriteSDigits for module " << GetModuleNumber() << endl; // dom
283 GetMap()->GetMaxMapIndex(niz, nix);
284 for(iz=0; iz<niz; iz++)for(ix=0; ix<nix; ix++){
285 if(GetMap()->GetSignalOnly(iz,ix)>0.0){
286 // cout << " Signal gt 0 iz ix " << iz << ix << " Module " << GetModuleNumber() << endl; // dom
287 aliITS->AddSumDigit(*(GetMap()->GetpListItem(iz,ix)));
288 if(AliDebugLevel()>0) {
289 AliDebug(1,Form("%d, %d",iz,ix));
290 cout << *(GetMap()->GetpListItem(iz,ix)) << endl;
292 } // end if GetMap()->GetSignalOnly(iz,ix)>0.0
296 //______________________________________________________________________
297 void AliITSsimulationSPD::FinishSDigitiseModule(){
298 // This function calls SDigitsToDigits which creates Digits from SDigits
307 // cout << "FinishSDigitiseModule for module " << GetModuleNumber() << endl; // dom
308 FrompListToDigits(); // Charge To Signal both adds noise and
312 //______________________________________________________________________
313 void AliITSsimulationSPD::DigitiseModule(AliITSmodule *mod,Int_t,
315 // This function creates Digits straight from the hits and then adds
316 // electronic noise to the digits before adding them to pList
317 // Each of the input variables is passed along to HitToSDigit
319 // AliITSmodule *mod module
327 AliDebug(1,Form("(mod=%p,,)",mod));
329 HitToSDigitFast(mod);
330 RemoveDeadPixels(mod);
331 // cout << "After Remove in DigitiseModule in module " << mod->GetIndex() << endl; // dom
335 //______________________________________________________________________
336 void AliITSsimulationSPD::HitToSDigit(AliITSmodule *mod){
337 // Does the charge distributions using Gaussian diffusion charge charing.
339 // AliITSmodule *mod Pointer to this module
344 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
345 TObjArray *hits = mod->GetHits();
346 Int_t nhits = hits->GetEntriesFast();
349 Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
350 Double_t x,y,z,t,tp,st,dt=0.2,el,sig,sigx,sigz,fda;
351 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
352 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
353 Double_t thick = 0.5*kmictocm*seg->Dy(); // Half Thickness
354 res->GetSigmaDiffusionAsymmetry(fda);
356 AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling));
358 for(h=0;h<nhits;h++){
359 if(AliDebugLevel()>0) {
360 AliDebug(1,Form("Hits, %d", h));
361 cout << *(mod->GetHit(h)) << endl;
363 if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue;
364 st = TMath::Sqrt(x1*x1+y1*y1+z1*z1);
366 st = (Double_t)((Int_t)(st/kmictocm)); // number of microns
367 if(st<=1.0) st = 1.0;
369 for(t=0.0;t<1.0;t+=dt){ // Integrate over t
374 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
375 el = res->GeVToCharge((Double_t)(dt*de));
377 if(el<=0.0) cout<<"el="<<el<<" dt="<<dt
380 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
381 // SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
384 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
385 cout << "sigx, sigz, y "<< sigx << " " << sigz<< " " << TMath::Abs(thick + y) << endl;// ciccio
387 } else { // st == 0.0 deposit it at this point
391 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
392 el = res->GeVToCharge((Double_t)de);
393 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
394 // SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
397 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
404 for(i=0;i<GetMap()->GetEntries();i++)
405 if(GetMap()->GetpListItem(i)==0) continue;
407 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
408 SetCoupling(iz,ix,idtrack,h);
412 for(i=0;i<GetMap()->GetEntries();i++)
413 if(GetMap()->GetpListItem(i)==0) continue;
415 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
416 SetCouplingOld(iz,ix,idtrack,h);
420 } // Loop over all hits h
421 if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling);
423 //______________________________________________________________________
424 void AliITSsimulationSPD::HitToSDigitFast(AliITSmodule *mod){
425 // Does the charge distributions using Gaussian diffusion charge charing. // Inputs:
426 // AliITSmodule *mod Pointer to this module
431 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
433 const Double_t kti[kn10]={7.443716945e-3,2.166976971e-1,3.397047841e-1,
434 4.325316833e-1,4.869532643e-1,5.130467358e-1,
435 5.674683167e-1,6.602952159e-1,7.833023029e-1,
437 const Double_t kwi[kn10]={1.477621124e-1,1.346333597e-1,1.095431813e-1,
438 7.472567455e-2,3.333567215e-2,3.333567215e-2,
439 7.472567455e-2,1.095431813e-1,1.346333597e-1,
441 TObjArray *hits = mod->GetHits();
442 Int_t nhits = hits->GetEntriesFast();
445 Double_t x0=0.0,x1=0.0,y0=0.0,y1=0.0,z0=0.0,z1=0.0,de=0.0;
446 Double_t x,y,z,t,st,el,sig,sigx,sigz,fda;
447 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
448 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
449 Double_t thick = 0.5*kmictocm*seg->Dy(); // Half thickness
450 res->GetSigmaDiffusionAsymmetry(fda);
451 // cout << "Half Thickness " << thick << endl; // dom
452 // cout << "Diffusion asymm " << fda << endl; // dom
454 AliDebug(1,Form("(mod=%p) fCoupling=%d",mod,fCoupling));
456 for(h=0;h<nhits;h++){
457 if(AliDebugLevel()>0) {
458 AliDebug(1,Form("Hits, %d", h));
459 cout << *(mod->GetHit(h)) << endl;
461 if(!mod->LineSegmentL(h,x0,x1,y0,y1,z0,z1,de,idtrack)) continue;
462 st = TMath::Sqrt(x1*x1+y1*y1+z1*z1);
463 if(st>0.0) for(i=0;i<kn10;i++){ // Integrate over t
468 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
469 // el = res->GeVToCharge((Double_t)(dt*de));
470 // el = 1./kn10*res->GeVToCharge((Double_t)de);
471 el = kwi[i]*res->GeVToCharge((Double_t)de);
473 if(el<=0.0) cout<<"el="<<el<<" kwi["<<i<<"]="<<kwi[i]
476 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
479 //SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
480 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
481 // cout << "sigx sigz " << sigx << " " << sigz << endl; // dom
482 } // end for i // End Integrate over t
483 else { // st == 0.0 deposit it at this point
487 if(!(seg->LocalToDet(x,z,ix,iz))) continue; // outside
488 el = res->GeVToCharge((Double_t)de);
489 sig = res->SigmaDiffusion1D(TMath::Abs(thick + y));
490 //SpreadCharge(x,z,ix,iz,el,sig,idtrack,h);
493 SpreadChargeAsym(x,z,ix,iz,el,sigx,sigz,idtrack,h);
500 for(i=0;i<GetMap()->GetEntries();i++)
501 if(GetMap()->GetpListItem(i)==0) continue;
503 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
504 SetCoupling(iz,ix,idtrack,h);
508 for(i=0;i<GetMap()->GetEntries();i++)
509 if(GetMap()->GetpListItem(i)==0) continue;
511 GetMap()->GetMapIndex(GetMap()->GetpListItem(i)->GetIndex(),iz,ix);
512 SetCouplingOld(iz,ix,idtrack,h);
516 } // Loop over all hits h
517 if(GetDebug(2))Info("HitToSDigit","Finished fCoupling=%d",fCoupling);
519 //______________________________________________________________________
520 void AliITSsimulationSPD::SpreadCharge(Double_t x0,Double_t z0,
522 Double_t el,Double_t sig,Int_t t,
524 // Spreads the charge over neighboring cells. Assume charge is distributed
525 // as charge(x,z) = (el/2*pi*sig*sig)*exp(-arg)
526 // arg=((x-x0)*(x-x0)/2*sig*sig)+((z-z0*z-z0)/2*sig*sig)
527 // Defined this way, the integral over all x and z is el.
529 // Double_t x0 x position of point where charge is liberated
530 // Double_t y0 y position of point where charge is liberated
531 // Double_t z0 z position of point where charge is liberated
532 // Int_t ix0 row of cell corresponding to point x0
533 // Int_t iz0 columb of cell corresponding to point z0
534 // Double_t el number of electrons liberated in this step
535 // Double_t sig Sigma difusion for this step (y0 dependent)
536 // Int_t t track number
537 // Int_t ti hit track index number
538 // Int_t hi hit "hit" index number
543 const Int_t knx = 3,knz = 2;
544 const Double_t kRoot2 = 1.414213562; // Sqrt(2).
545 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
546 Int_t ix,iz,ixs,ixe,izs,ize;
548 Double_t x1,x2,z1,z2,s,sp;
549 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
552 if(GetDebug(4)) Info("SpreadCharge","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e,"
553 "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sig,t,hi);
554 if(sig<=0.0) { // if sig<=0 No diffusion to simulate.
555 GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el);
557 cout << "sig<=0.0=" << sig << endl;
561 sp = 1.0/(sig*kRoot2);
563 cout << "sig=" << sig << " sp=" << sp << endl;
565 ixs = TMath::Max(-knx+ix0,0);
566 ixe = TMath::Min(knx+ix0,seg->Npx()-1);
567 izs = TMath::Max(-knz+iz0,0);
568 ize = TMath::Min(knz+iz0,seg->Npz()-1);
569 for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){
570 seg->DetToLocal(ix,iz,x,z); // pixel center
573 x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper
574 x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower
575 z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper
576 z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower
577 x1 -= x0; // Distance from where track traveled
578 x2 -= x0; // Distance from where track traveled
579 z1 -= z0; // Distance from where track traveled
580 z2 -= z0; // Distance from where track traveled
581 s = 0.25; // Correction based on definision of Erfc
582 s *= TMath::Erfc(sp*x1) - TMath::Erfc(sp*x2);
584 cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<<
585 " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<<
586 " sp*x1="<<sp*x1<<" sp*x2="<<sp*x2<<" s="<<s;
588 s *= TMath::Erfc(sp*z1) - TMath::Erfc(sp*z2);
590 cout<<" sp*z1="<<sp*z1<<" sp*z2="<<sp*z2<<" s="<<s<< endl;
592 GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el);
595 //______________________________________________________________________
596 void AliITSsimulationSPD::SpreadChargeAsym(Double_t x0,Double_t z0,
598 Double_t el,Double_t sigx,Double_t sigz,
600 // Spreads the charge over neighboring cells. Assume charge is distributed
601 // as charge(x,z) = (el/2*pi*sigx*sigz)*exp(-arg)
602 // arg=((x-x0)*(x-x0)/2*sigx*sigx)+((z-z0*z-z0)/2*sigz*sigz)
603 // Defined this way, the integral over all x and z is el.
605 // Double_t x0 x position of point where charge is liberated
606 // Double_t y0 y position of point where charge is liberated
607 // Double_t z0 z position of point where charge is liberated
608 // Int_t ix0 row of cell corresponding to point x0
609 // Int_t iz0 columb of cell corresponding to point z0
610 // Double_t el number of electrons liberated in this step
611 // Double_t sigx Sigma difusion along x for this step (y0 dependent)
612 // Double_t sigz Sigma difusion along z for this step (y0 dependent)
613 // Int_t t track number
614 // Int_t ti hit track index number
615 // Int_t hi hit "hit" index number
620 const Int_t knx = 3,knz = 2;
621 const Double_t kRoot2 = 1.414213562; // Sqrt(2).
622 const Double_t kmictocm = 1.0e-4; // convert microns to cm.
623 Int_t ix,iz,ixs,ixe,izs,ize;
625 Double_t x1,x2,z1,z2,s,spx,spz;
626 AliITSsegmentationSPD* seg = (AliITSsegmentationSPD*)GetSegmentationModel(0);
629 if(GetDebug(4)) Info("SpreadCharge","(x0=%e,z0=%e,ix0=%d,iz0=%d,el=%e,"
630 "sig=%e,t=%d,i=%d)",x0,z0,ix0,iz0,el,sigx,sigz,t,hi);
631 if(sigx<=0.0 || sigz<=0.0) { // if sig<=0 No diffusion to simulate.
632 GetMap()->AddSignal(iz0,ix0,t,hi,GetModuleNumber(),el);
634 cout << "sigx<=0.0=" << sigx << endl;
635 cout << "sigz<=0.0=" << sigz << endl;
639 spx = 1.0/(sigx*kRoot2); spz = 1.0/(sigz*kRoot2);
641 cout << "sigx=" << sigx << " spx=" << spx << endl;
642 cout << "sigz=" << sigz << " spz=" << spz << endl;
644 ixs = TMath::Max(-knx+ix0,0);
645 ixe = TMath::Min(knx+ix0,seg->Npx()-1);
646 izs = TMath::Max(-knz+iz0,0);
647 ize = TMath::Min(knz+iz0,seg->Npz()-1);
648 for(ix=ixs;ix<=ixe;ix++) for(iz=izs;iz<=ize;iz++){
649 seg->DetToLocal(ix,iz,x,z); // pixel center
652 x2 = x1 + 0.5*kmictocm*seg->Dpx(ix); // Upper
653 x1 -= 0.5*kmictocm*seg->Dpx(ix); // Lower
654 z2 = z1 + 0.5*kmictocm*seg->Dpz(iz); // Upper
655 z1 -= 0.5*kmictocm*seg->Dpz(iz); // Lower
656 x1 -= x0; // Distance from where track traveled
657 x2 -= x0; // Distance from where track traveled
658 z1 -= z0; // Distance from where track traveled
659 z2 -= z0; // Distance from where track traveled
660 s = 0.25; // Correction based on definision of Erfc
661 s *= TMath::Erfc(spx*x1) - TMath::Erfc(spx*x2);
663 cout <<"el="<<el<<" ix0="<<ix0<<" ix="<<ix<<" x0="<<x<<
664 " iz0="<<iz0<<" iz="<<iz<<" z0="<<z<<
665 " spx*x1="<<spx*x1<<" spx*x2="<<spx*x2<<" s="<<s;
667 s *= TMath::Erfc(spz*z1) - TMath::Erfc(spz*z2);
669 cout<<" spz*z1="<<spz*z1<<" spz*z2="<<spz*z2<<" s="<<s<< endl;
671 GetMap()->AddSignal(iz,ix,t,hi,GetModuleNumber(),s*el);
674 //______________________________________________________________________
675 void AliITSsimulationSPD::RemoveDeadPixels(AliITSmodule *mod){
676 // Removes dead pixels on each module (ladder)
678 // Module Index (0,239)
684 Int_t moduleNr = mod->GetIndex();
685 Int_t nrDead = fCalObj[moduleNr]->GetNrDead();
686 for (Int_t i=0; i<nrDead; i++) {
687 GetMap()->DeleteHit(fCalObj[moduleNr]->GetDeadColAt(i),fCalObj[moduleNr]->GetDeadRowAt(i));
690 //______________________________________________________________________
691 void AliITSsimulationSPD::FrompListToDigits(){
692 // add noise and electronics, perform the zero suppression and add the
700 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
702 Double_t electronics;
704 const Int_t knmaxtrk=AliITSdigitSPD::GetNTracks();
705 static AliITSdigitSPD dig;
706 AliITSCalibrationSPD* res = (AliITSCalibrationSPD*)GetCalibrationModel(fDetType->GetITSgeom()->GetStartSPD());
707 if(GetDebug(1)) Info("FrompListToDigits","()");
708 for(iz=0; iz<GetNPixelsZ(); iz++) for(ix=0; ix<GetNPixelsX(); ix++){
709 // NEW (for the moment plugged by hand, in the future possibly read from Data Base)
710 // here parametrize the efficiency of the pixel along the row for the test columns (1,9,17,25)
711 // if(iz==1 || iz == 9 || iz == 17 || iz == 25) {
712 // Double_t eff,p1=0.,p2=0.;
715 // case 1: p1=0.63460;p2=0.42438E-01;break;
716 // case 9: p1=0.41090;p2=0.75914E-01;break;
717 // case 17: p1=0.31883;p2=0.91502E-01;break;
718 // case 25: p1=0.48828;p2=0.57975E-01;break;
720 // eff=1.-p1*exp(-p2*x);
721 // if (gRandom->Rndm() >= eff) continue;
723 // END parametrize the efficiency
725 electronics = res->ApplyBaselineAndNoise();
726 UpdateMapNoise(ix,iz,electronics);
728 // Apply Threshold and write Digits.
729 sig = GetMap()->GetSignalOnly(iz,ix);
730 FillHistograms(ix,iz,sig+electronics);
732 cout<<sig<<"+"<<electronics<<">threshold("<<ix<<","<<iz
733 <<")="<<GetThreshold() <<endl;
735 if (sig+electronics <= GetThreshold()) continue;
740 // dig.SetSignalSPD((Int_t) GetMap()->GetSignal(iz,ix));
741 Double_t aSignal = GetMap()->GetSignal(iz,ix);
742 if (TMath::Abs(aSignal)>2147483647.0) {
743 //PH 2147483647 is the max. integer
744 //PH This apparently is a problem which needs investigation
745 AliWarning(Form("Too big or too small signal value %f",aSignal));
746 aSignal = TMath::Sign((Double_t)2147483647,aSignal);
748 dig.SetSignalSPD((Int_t)aSignal);
750 for(j=0;j<knmaxtrk;j++){
751 if (j<GetMap()->GetNEntries()) {
752 dig.SetTrack(j,GetMap()->GetTrack(iz,ix,j));
753 dig.SetHit(j,GetMap()->GetHit(iz,ix,j));
754 }else { // Default values
760 cout<<iz<<","<<ix<<","<<*(GetMap()->GetpListItem(iz,ix))<<endl;
762 aliITS->AddSimDigit(0,&dig);
765 //______________________________________________________________________
766 void AliITSsimulationSPD::CreateHistograms(){
767 // create 1D histograms for tests
775 if(GetDebug(1)) Info("CreateHistograms","create histograms");
777 fHis = new TObjArray(GetNPixelsZ());
778 TString fSPDname("spd_");
779 for(Int_t i=0;i<GetNPixelsZ();i++) {
781 sprintf(pixelz,"%d",i);
782 fSPDname.Append(pixelz);
783 fHis->AddAt(new TH1F(fSPDname.Data(),"SPD maps",
784 GetNPixelsX(),0.,(Double_t)GetNPixelsX()),i);
787 //______________________________________________________________________
788 void AliITSsimulationSPD::FillHistograms(Int_t ix,Int_t iz,Double_t v){
789 // Fill the histogram
797 if(!GetHistArray()) return; // Only fill if setup.
798 if(GetDebug(2)) Info("FillHistograms","fill histograms");
799 GetHistogram(iz)->Fill(ix,v);
801 //______________________________________________________________________
802 void AliITSsimulationSPD::ResetHistograms(){
803 // Reset histograms for this detector
811 if(!GetHistArray()) return; // Only fill if setup.
812 if(GetDebug(2)) Info("FillHistograms","fill histograms");
813 for ( int i=0;i<GetNPixelsZ();i++ ) {
814 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
818 //______________________________________________________________________
819 void AliITSsimulationSPD::SetCoupling(Int_t col, Int_t row, Int_t ntrack,
821 // Take into account the coupling between adiacent pixels.
822 // The parameters probcol and probrow are the probability of the
823 // signal in one pixel shared in the two adjacent pixels along
824 // the column and row direction, respectively.
825 // Note pList is goten via GetMap() and module is not need any more.
826 // Otherwise it is identical to that coded by Tiziano Virgili (BSN).
829 <img src="picts/ITS/barimodel_3.gif">
832 <font size=+2 color=red>
833 <a href="mailto:tiziano.virgili@cern.ch"></a>.
839 // Int_t col z cell index
840 // Int_t row x cell index
841 // Int_t ntrack track incex number
842 // Int_t idhit hit index number
848 Double_t pulse1,pulse2;
849 Double_t couplR=0.0,couplC=0.0;
852 GetCouplings(couplC,couplR);
853 if(GetDebug(3)) Info("SetCoupling","(col=%d,row=%d,ntrack=%d,idhit=%d) "
854 "Calling SetCoupling couplC=%e couplR=%e",
855 col,row,ntrack,idhit,couplC,couplR);
858 pulse1 = GetMap()->GetSignalOnly(col,row);
860 for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction
863 xr = gRandom->Rndm();
864 if ((j1<0) || (j1>GetNPixelsZ()-1) || (xr>couplC)){
868 UpdateMapSignal(row,j1,ntrack,idhit,pulse1);
870 flag = 1; // only first next!!
873 // loop in row direction
876 xr = gRandom->Rndm();
877 if ((j2<0) || (j2>GetNPixelsX()-1) || (xr>couplR)){
881 UpdateMapSignal(j2,col,ntrack,idhit,pulse2);
883 flag = 1; // only first next!!
888 //______________________________________________________________________
889 void AliITSsimulationSPD::SetCouplingOld(Int_t col, Int_t row,
890 Int_t ntrack,Int_t idhit) {
891 // Take into account the coupling between adiacent pixels.
892 // The parameters probcol and probrow are the fractions of the
893 // signal in one pixel shared in the two adjacent pixels along
894 // the column and row direction, respectively.
897 <img src="picts/ITS/barimodel_3.gif">
900 <font size=+2 color=red>
901 <a href="mailto:Rocco.Caliandro@ba.infn.it"></a>.
907 // Int_t col z cell index
908 // Int_t row x cell index
909 // Int_t ntrack track incex number
910 // Int_t idhit hit index number
911 // Int_t module module number
917 Double_t pulse1,pulse2;
918 Double_t couplR=0.0,couplC=0.0;
920 GetCouplings(couplC,couplR);
923 // cout << "Threshold --> " << GetThreshold() << endl; // dom
924 // cout << "Couplings --> " << couplC << " " << couplR << endl; //dom
927 if(GetDebug(3)) Info("SetCouplingOld","(col=%d,row=%d,ntrack=%d,idhit=%d) "
928 "Calling SetCoupling couplC=%e couplR=%e",
929 col,row,ntrack,idhit,couplC,couplR);
930 for (Int_t isign=-1;isign<=1;isign+=2){// loop in col direction
931 pulse1 = GetMap()->GetSignalOnly(col,row);
938 if ((j1<0)||(j1>GetNPixelsZ()-1)||(pulse1<GetThreshold())){
939 pulse1 = GetMap()->GetSignalOnly(col,row);
943 UpdateMapSignal(row,j1,ntrack,idhit,pulse1);
945 flag = 1; // only first next !!
948 // loop in row direction
952 if((j2<0)||(j2>(GetNPixelsX()-1))||(pulse2<GetThreshold())){
953 pulse2 = GetMap()->GetSignalOnly(col,row);
957 UpdateMapSignal(j2,col,ntrack,idhit,pulse2);
959 flag = 1; // only first next!!