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 **************************************************************************/
18 #include <Riostream.h>
25 #include <TStopwatch.h>
37 #include "AliITShit.h"
38 #include "AliITSdigitSDD.h"
39 #include "AliITSdigitSPD.h"
40 #include "AliITSmodule.h"
41 #include "AliITSpList.h"
42 #include "AliITSMapA1.h"
43 #include "AliITSMapA2.h"
44 #include "AliITSetfSDD.h"
45 #include "AliITSRawData.h"
46 #include "AliITSHuffman.h"
47 #include "AliITSgeom.h"
48 #include "AliITSsegmentation.h"
49 #include "AliITSresponse.h"
50 #include "AliITSsegmentationSDD.h"
51 #include "AliITSresponseSDD.h"
52 #include "AliITSsimulationSDD.h"
54 ClassImp(AliITSsimulationSDD)
55 ////////////////////////////////////////////////////////////////////////
57 // Written by Piergiorgio Cerello
60 // AliITSsimulationSDD is the simulation of SDDs.
64 <img src="picts/ITS/AliITShit_Class_Diagram.gif">
67 <font size=+2 color=red>
68 <p>This show the relasionships between the ITS hit class and the
74 //______________________________________________________________________
75 Int_t power(Int_t b, Int_t e) {
76 // compute b to the e power, where both b and e are Int_ts.
79 for(i=0; i<e; i++) power *= b;
82 //______________________________________________________________________
83 void FastFourierTransform(AliITSetfSDD *alisddetf,Double_t *real,
84 Double_t *imag,Int_t direction) {
85 // Do a Fast Fourier Transform
87 Int_t samples = alisddetf->GetSamples();
88 Int_t l = (Int_t) ((log((Float_t) samples)/log(2.))+0.5);
91 Int_t m2 = samples/m1;
94 for(j=0; j<samples; j += m1) {
96 for(k=j; k<= j+m-1; k++) {
97 Double_t wsr = alisddetf->GetWeightReal(p);
98 Double_t wsi = alisddetf->GetWeightImag(p);
99 if(direction == -1) wsi = -wsi;
100 Double_t xr = *(real+k+m);
101 Double_t xi = *(imag+k+m);
102 *(real+k+m) = wsr*(*(real+k)-xr) - wsi*(*(imag+k)-xi);
103 *(imag+k+m) = wsr*(*(imag+k)-xi) + wsi*(*(real+k)-xr);
114 for(j=0; j<samples; j++) {
118 for(i1=1; i1<=l; i1++) {
121 p = p + p + j2 - j1 - j1;
124 Double_t xr = *(real+j);
125 Double_t xi = *(imag+j);
126 *(real+j) = *(real+p);
127 *(imag+j) = *(imag+p);
132 if(direction == -1) {
133 for(i=0; i<samples; i++) {
134 *(real+i) /= samples;
135 *(imag+i) /= samples;
137 } // end if direction == -1
140 //______________________________________________________________________
141 AliITSsimulationSDD::AliITSsimulationSDD():
164 fCrosstalkFlag(kFALSE),
169 // Default constructor
171 SetPerpendTracksFlag();
176 //______________________________________________________________________
177 AliITSsimulationSDD::AliITSsimulationSDD(AliITSsimulationSDD &source) :
178 AliITSsimulation(source){
179 // Copy constructor to satify Coding roules only.
181 if(this==&source) return;
182 Error("AliITSsimulationSDD","Not allowed to make a copy of "
183 "AliITSsimulationSDD Using default creater instead");
184 AliITSsimulationSDD();
186 //______________________________________________________________________
187 AliITSsimulationSDD& AliITSsimulationSDD::operator=(const AliITSsimulationSDD &src){
188 // Assignment operator to satify Coding roules only.
190 if(this==&src) return *this;
191 Error("AliITSsimulationSDD","Not allowed to make a = with "
192 "AliITSsimulationSDD Using default creater instead");
195 //______________________________________________________________________
196 AliITSsimulationSDD& AliITSsimulationSDD::operator=(const AliITSsimulation &src){
197 // Assignment operator to satify Coding roules only.
199 if(this==&src) return *this;
200 Error("AliITSsimulationSSD","Not allowed to make a = with "
201 "AliITSsimulationSDD Using default creater instead");
205 //______________________________________________________________________
206 AliITSsimulationSDD::AliITSsimulationSDD(AliITSsegmentation *seg,
207 AliITSresponse *resp):
208 AliITSsimulation(seg,resp),
230 fCrosstalkFlag(kFALSE),
235 // Standard Constructor
239 //______________________________________________________________________
240 void AliITSsimulationSDD::Init(){
241 // Standard Constructor
244 SetPerpendTracksFlag();
249 fpList = new AliITSpList( GetSeg()->Npz(),
250 fScaleSize*GetSeg()->Npx() );
251 fHitSigMap2 = new AliITSMapA2(GetSeg(),fScaleSize,1);
252 fHitNoiMap2 = new AliITSMapA2(GetSeg(),fScaleSize,1);
253 fHitMap2 = fHitSigMap2;
255 fNofMaps = GetSeg()->Npz();
256 fMaxNofSamples = GetSeg()->Npx();
257 fAnodeFire = new Bool_t [fNofMaps];
259 Float_t sddLength = GetSeg()->Dx();
260 Float_t sddWidth = GetSeg()->Dz();
263 Float_t anodePitch = GetSeg()->Dpz(dummy);
264 Double_t timeStep = (Double_t)GetSeg()->Dpx(dummy);
265 Float_t driftSpeed = GetResp()->DriftSpeed();
267 if(anodePitch*(fNofMaps/2) > sddWidth) {
268 Warning("AliITSsimulationSDD",
269 "Too many anodes %d or too big pitch %f \n",
270 fNofMaps/2,anodePitch);
273 if(timeStep*fMaxNofSamples < sddLength/driftSpeed) {
274 Error("AliITSsimulationSDD",
275 "Time Interval > Allowed Time Interval: exit\n");
279 fElectronics = new AliITSetfSDD(timeStep/fScaleSize,
280 GetResp()->Electronics());
282 char opt1[20], opt2[20];
283 GetResp()->ParamOptions(opt1,opt2);
285 char *same = strstr(opt1,"same");
290 fNoise.Set(fNofMaps);
291 fBaseline.Set(fNofMaps);
294 const char *kopt=GetResp()->ZeroSuppOption();
295 if (strstr(fParam.Data(),"file") ) {
298 if (strstr(kopt,"2D")) {
301 Init2D(); // desactivate if param change module by module
302 } else if(strstr(kopt,"1D")) {
305 Init1D(); // desactivate if param change module by module
313 } // end if else strstr
315 Bool_t write = GetResp()->OutputOption();
316 if(write && strstr(kopt,"2D")) MakeTreeB();
318 // call here if baseline does not change by module
321 fITS = (AliITS*)gAlice->GetModule("ITS");
322 Int_t size = fNofMaps*fMaxNofSamples;
323 fStream = new AliITSInStream(size);
325 fInZR = new Double_t [fScaleSize*fMaxNofSamples];
326 fInZI = new Double_t [fScaleSize*fMaxNofSamples];
327 fOutZR = new Double_t [fScaleSize*fMaxNofSamples];
328 fOutZI = new Double_t [fScaleSize*fMaxNofSamples];
330 //______________________________________________________________________
331 AliITSsimulationSDD::~AliITSsimulationSDD() {
346 if(fTreeB) delete fTreeB;
347 if(fInZR) delete [] fInZR;
348 if(fInZI) delete [] fInZI;
349 if(fOutZR) delete [] fOutZR;
350 if(fOutZI) delete [] fOutZI;
351 if(fAnodeFire) delete [] fAnodeFire;
353 //______________________________________________________________________
354 void AliITSsimulationSDD::InitSimulationModule( Int_t module, Int_t event ) {
355 // create maps to build the lists of tracks for each summable digit
359 memset(fAnodeFire,0,sizeof(Bool_t)*fNofMaps);
361 //______________________________________________________________________
362 void AliITSsimulationSDD::ClearMaps() {
365 fHitSigMap2->ClearMap();
366 fHitNoiMap2->ClearMap();
368 //______________________________________________________________________
369 void AliITSsimulationSDD::SDigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
370 // digitize module using the "slow" detector simulator creating
373 TObjArray *fHits = mod->GetHits();
374 Int_t nhits = fHits->GetEntriesFast();
377 InitSimulationModule( md, ev );
378 HitsToAnalogDigits( mod );
379 ChargeToSignal( kFALSE ); // - Process signal without add noise
380 fHitMap2 = fHitNoiMap2; // - Swap to noise map
381 ChargeToSignal( kTRUE ); // - Process only noise
382 fHitMap2 = fHitSigMap2; // - Return to signal map
386 //______________________________________________________________________
387 Bool_t AliITSsimulationSDD::AddSDigitsToModule(TClonesArray *pItemArray,
389 // Add Summable digits to module maps.
390 Int_t nItems = pItemArray->GetEntries();
391 Double_t maxadc = GetResp()->MaxAdc();
394 // cout << "Adding "<< nItems <<" SDigits to module " << fModule << endl;
395 for( Int_t i=0; i<nItems; i++ ) {
396 AliITSpListItem * pItem = (AliITSpListItem *)(pItemArray->At( i ));
397 if( pItem->GetModule() != fModule ) {
398 Error( "AliITSsimulationSDD","Error reading, SDigits module "
399 "%d != current module %d: exit",
400 pItem->GetModule(), fModule );
404 if(pItem->GetSignal()>0.0 ) sig = kTRUE;
406 fpList->AddItemTo( mask, pItem ); // Add SignalAfterElect + noise
407 AliITSpListItem * pItem2 = fpList->GetpListItem( pItem->GetIndex() );
408 Double_t sigAE = pItem2->GetSignalAfterElect();
409 if( sigAE >= maxadc ) sigAE = maxadc-1; // avoid overflow signal
412 fpList->GetMapIndex( pItem->GetIndex(), ia, it );
413 fHitMap2->SetHit( ia, it, sigAE );
414 fAnodeFire[ia] = kTRUE;
418 //______________________________________________________________________
419 void AliITSsimulationSDD::FinishSDigitiseModule() {
420 // digitize module using the "slow" detector simulator from
421 // the sum of summable digits.
425 //______________________________________________________________________
426 void AliITSsimulationSDD::DigitiseModule(AliITSmodule *mod,Int_t md,Int_t ev){
427 // create maps to build the lists of tracks for each digit
429 TObjArray *fHits = mod->GetHits();
430 Int_t nhits = fHits->GetEntriesFast();
432 InitSimulationModule( md, ev );
434 if( !nhits && fCheckNoise ) {
435 ChargeToSignal( kTRUE ); // process noise
442 HitsToAnalogDigits( mod );
443 ChargeToSignal( kTRUE ); // process signal + noise
445 for( Int_t i=0; i<fNofMaps; i++ ) {
446 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
447 Int_t jdx = j*fScaleSize;
448 Int_t index = fpList->GetHitIndex( i, j );
449 AliITSpListItem pItemTmp2( fModule, index, 0. );
450 // put the fScaleSize analog digits in only one
451 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
452 AliITSpListItem *pItemTmp = fpList->GetpListItem( i, jdx+ik );
453 if( pItemTmp == 0 ) continue;
454 pItemTmp2.Add( pItemTmp );
456 fpList->DeleteHit( i, j );
457 fpList->AddItemTo( 0, &pItemTmp2 );
463 //______________________________________________________________________
464 void AliITSsimulationSDD::FinishDigits() {
465 // introduce the electronics effects and do zero-suppression if required
468 if( fCrosstalkFlag ) ApplyCrosstalk();
470 const char *kopt = GetResp()->ZeroSuppOption();
471 ZeroSuppression( kopt );
473 //______________________________________________________________________
474 void AliITSsimulationSDD::HitsToAnalogDigits( AliITSmodule *mod ) {
475 // create maps to build the lists of tracks for each digit
477 TObjArray *hits = mod->GetHits();
478 Int_t nhits = hits->GetEntriesFast();
479 // Int_t arg[6] = {0,0,0,0,0,0};
481 Int_t nofAnodes = fNofMaps/2;
482 Float_t sddLength = GetSeg()->Dx();
483 Float_t sddWidth = GetSeg()->Dz();
484 Float_t anodePitch = GetSeg()->Dpz(dummy);
485 Float_t timeStep = GetSeg()->Dpx(dummy);
486 Float_t driftSpeed = GetResp()->DriftSpeed();
487 Float_t maxadc = GetResp()->MaxAdc();
488 Float_t topValue = GetResp()->DynamicRange();
489 Float_t cHloss = GetResp()->ChargeLoss();
490 Float_t norm = maxadc/topValue;
491 Double_t dfCoeff, s1; GetResp()->DiffCoeff(dfCoeff,s1); // Signal 2d Shape
492 Double_t eVpairs = GetResp()->GetGeVToCharge()*1.0E9; // 3.6 eV by def.
493 Float_t nsigma = GetResp()->NSigmaIntegration(); //
494 Int_t nlookups = GetResp()->GausNLookUp(); //
495 Float_t jitter = ((AliITSresponseSDD*)GetResp())->JitterError(); //
497 // Piergiorgio's part (apart for few variables which I made float
498 // when i thought that can be done
499 // Fill detector maps with GEANT hits
500 // loop over hits in the module
502 const Float_t kconv = 1.0e+6; // GeV->KeV
504 Int_t hitDetector; // detector number (lay,lad,hitDetector)
505 Int_t iWing; // which detector wing/side.
506 Int_t detector; // 2*(detector-1)+iWing
507 Int_t ii,kk,ka,kt; // loop indexs
508 Int_t ia,it,index; // sub-pixel integration indexies
509 Int_t iAnode; // anode number.
510 Int_t timeSample; // time buckett.
511 Int_t anodeWindow; // anode direction charge integration width
512 Int_t timeWindow; // time direction charge integration width
513 Int_t jamin,jamax; // anode charge integration window
514 Int_t jtmin,jtmax; // time charge integration window
515 Int_t ndiv; // Anode window division factor.
516 Int_t nsplit; // the number of splits in anode and time windows==1.
517 Int_t nOfSplits; // number of times track length is split into
518 Float_t nOfSplitsF; // Floating point version of nOfSplits.
519 Float_t kkF; // Floating point version of loop index kk.
520 Float_t pathInSDD; // Track length in SDD.
521 Float_t drPath; // average position of track in detector. in microns
522 Float_t drTime; // Drift time
523 Float_t nmul; // drift time window multiplication factor.
524 Float_t avDrft; // x position of path length segment in cm.
525 Float_t avAnode; // Anode for path length segment in Anode number (float)
526 Float_t xAnode; // Floating point anode number.
527 Float_t driftPath; // avDrft in microns.
528 Float_t width; // width of signal at anodes.
529 Double_t depEnergy; // Energy deposited in this GEANT step.
530 Double_t xL[3],dxL[3]; // local hit coordinates and diff.
531 Double_t sigA; // sigma of signal at anode.
532 Double_t sigT; // sigma in time/drift direction for track segment
533 Double_t aStep,aConst; // sub-pixel size and offset anode
534 Double_t tStep,tConst; // sub-pixel size and offset time
535 Double_t amplitude; // signal amplitude for track segment in nanoAmpere
536 Double_t chargeloss; // charge loss for track segment.
537 Double_t anodeAmplitude; // signal amplitude in anode direction
538 Double_t aExpo; // exponent of Gaussian anode direction
539 Double_t timeAmplitude; // signal amplitude in time direction
540 Double_t tExpo; // exponent of Gaussian time direction
541 // Double_t tof; // Time of flight in ns of this step.
543 for(ii=0; ii<nhits; ii++) {
544 if(!mod->LineSegmentL(ii,xL[0],dxL[0],xL[1],dxL[1],xL[2],dxL[2],
545 depEnergy,itrack)) continue;
546 xL[0] += 0.0001*gRandom->Gaus( 0, jitter ); //
548 hitDetector = mod->GetDet();
549 //tof = 1.E+09*(mod->GetHit(ii)->GetTOF()); // tof in ns.
550 //if(tof>sddLength/driftSpeed) continue; // hit happed too late.
552 // scale path to simulate a perpendicular track
553 // continue if the particle did not lose energy
554 // passing through detector
557 Warning("HitsToAnalogDigits",
558 "fTrack = %d hit=%d module=%d This particle has"
559 " passed without losing energy!",
560 itrack,ii,mod->GetIndex());
563 } // end if !depEnergy
565 pathInSDD = TMath::Sqrt(dxL[0]*dxL[0]+dxL[1]*dxL[1]+dxL[2]*dxL[2]);
567 if (fFlag && pathInSDD) { depEnergy *= (0.03/pathInSDD); }
568 drPath = 10000.*(dxL[0]+2.*xL[0])*0.5;
569 if(drPath < 0) drPath = -drPath;
570 drPath = sddLength-drPath;
572 if(GetDebug()){ // this should be fixed at geometry level
573 Warning("HitsToAnalogDigits",
574 "negative drift path drPath=%e sddLength=%e dxL[0]=%e "
576 drPath,sddLength,dxL[0],xL[0]);
579 } // end if drPath < 0
581 // Compute number of segments to brake step path into
582 drTime = drPath/driftSpeed; // Drift Time
583 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);// Sigma along the anodes
584 // calcuate the number of time the path length should be split into.
585 nOfSplits = (Int_t) (1. + 10000.*pathInSDD/sigA);
586 if(fFlag) nOfSplits = 1;
588 // loop over path segments, init. some variables.
589 depEnergy /= nOfSplits;
590 nOfSplitsF = (Float_t) nOfSplits;
591 for(kk=0;kk<nOfSplits;kk++) { // loop over path segments
592 kkF = (Float_t) kk + 0.5;
593 avDrft = xL[0]+dxL[0]*kkF/nOfSplitsF;
594 avAnode = xL[2]+dxL[2]*kkF/nOfSplitsF;
595 driftPath = 10000.*avDrft;
597 iWing = 2; // Assume wing is 2
598 if(driftPath < 0) { // if wing is not 2 it is 1.
600 driftPath = -driftPath;
601 } // end if driftPath < 0
602 driftPath = sddLength-driftPath;
603 detector = 2*(hitDetector-1) + iWing;
605 if(GetDebug()){ // this should be fixed at geometry level
606 Warning("HitsToAnalogDigits","negative drift path "
607 "driftPath=%e sddLength=%e avDrft=%e dxL[0]=%e "
608 "xL[0]=%e",driftPath,sddLength,avDrft,dxL[0],
612 } // end if driftPath < 0
615 drTime = driftPath/driftSpeed; // drift time for segment.
616 timeSample = (Int_t) (fScaleSize*drTime/timeStep + 1);
617 // compute time Sample including tof information. The tof only
618 // effects the time of the signal is recoreded and not the
620 // timeSample = (Int_t) (fScaleSize*(drTime+tof)/timeStep + 1);
621 if(timeSample > fScaleSize*fMaxNofSamples) {
622 Warning("HitsToAnalogDigits","Wrong Time Sample: %e",
625 } // end if timeSample > fScaleSize*fMaxNoofSamples
628 xAnode = 10000.*(avAnode)/anodePitch + nofAnodes/2; // +1?
629 if(xAnode*anodePitch > sddWidth || xAnode*anodePitch < 0.)
630 Warning("HitsToAnalogDigits",
631 "Exceedubg sddWidth=%e Z = %e",
632 sddWidth,xAnode*anodePitch);
633 iAnode = (Int_t) (1.+xAnode); // xAnode?
634 if(iAnode < 1 || iAnode > nofAnodes) {
635 Warning("HitToAnalogDigits","Wrong iAnode: 1<%d>%d",
638 } // end if iAnode < 1 || iAnode > nofAnodes
640 // store straight away the particle position in the array
641 // of particles and take idhit=ii only when part is entering (this
642 // requires FillModules() in the macro for analysis) :
644 // Sigma along the anodes for track segment.
645 sigA = TMath::Sqrt(2.*dfCoeff*drTime+s1*s1);
646 sigT = sigA/driftSpeed;
647 // Peak amplitude in nanoAmpere
648 amplitude = fScaleSize*160.*depEnergy/
649 (timeStep*eVpairs*2.*acos(-1.)*sigT*sigA);
650 amplitude *= timeStep/25.; // WARNING!!!!! Amplitude scaling to
651 // account for clock variations
652 // (reference value: 40 MHz)
653 chargeloss = 1.-cHloss*driftPath/1000;
654 amplitude *= chargeloss;
655 width = 2.*nsigma/(nlookups-1);
663 } // end if drTime > 1200.
665 nsplit = 4; // hard-wired //nsplit=4;nsplit = (nsplit+1)/2*2;
666 // Sub-pixel size see computation of aExpo and tExpo.
667 aStep = anodePitch/(nsplit*fScaleSize*sigA);
668 aConst = xAnode*anodePitch/sigA;
669 tStep = timeStep/(nsplit*fScaleSize*sigT);
670 tConst = drTime/sigT;
671 // Define SDD window corresponding to the hit
672 anodeWindow = (Int_t)(fScaleSize*nsigma*sigA/anodePitch+1);
673 timeWindow = (Int_t) (fScaleSize*nsigma*sigT/timeStep+1.);
674 jamin = (iAnode - anodeWindow/ndiv - 1)*fScaleSize*nsplit +1;
675 jamax = (iAnode + anodeWindow/ndiv)*fScaleSize*nsplit;
676 if(jamin <= 0) jamin = 1;
677 if(jamax > fScaleSize*nofAnodes*nsplit)
678 jamax = fScaleSize*nofAnodes*nsplit;
679 // jtmin and jtmax are Hard-wired
680 jtmin = (Int_t)(timeSample-timeWindow*nmul-1)*nsplit+1;
681 jtmax = (Int_t)(timeSample+timeWindow*nmul)*nsplit;
682 if(jtmin <= 0) jtmin = 1;
683 if(jtmax > fScaleSize*fMaxNofSamples*nsplit)
684 jtmax = fScaleSize*fMaxNofSamples*nsplit;
685 // Spread the charge in the anode-time window
686 for(ka=jamin; ka <=jamax; ka++) {
687 ia = (ka-1)/(fScaleSize*nsplit) + 1;
689 Warning("HitsToAnalogDigits","ia < 1: ");
692 if(ia > nofAnodes) ia = nofAnodes;
693 aExpo = (aStep*(ka-0.5)-aConst);
694 if(TMath::Abs(aExpo) > nsigma) anodeAmplitude = 0.;
696 dummy = (Int_t) ((aExpo+nsigma)/width);
697 anodeAmplitude = amplitude*GetResp()->GausLookUp(dummy);
698 } // end if TMath::Abs(aEspo) > nsigma
699 // index starts from 0
700 index = ((detector+1)%2)*nofAnodes+ia-1;
701 if(anodeAmplitude) for(kt=jtmin; kt<=jtmax; kt++) {
702 it = (kt-1)/nsplit+1; // it starts from 1
704 Warning("HitsToAnalogDigits","it < 1:");
707 if(it>fScaleSize*fMaxNofSamples)
708 it = fScaleSize*fMaxNofSamples;
709 tExpo = (tStep*(kt-0.5)-tConst);
710 if(TMath::Abs(tExpo) > nsigma) timeAmplitude = 0.;
712 dummy = (Int_t) ((tExpo+nsigma)/width);
713 timeAmplitude = anodeAmplitude*
714 GetResp()->GausLookUp(dummy);
715 } // end if TMath::Abs(tExpo) > nsigma
716 // build the list of Sdigits for this module
719 // arg[2] = itrack; // track number
720 // arg[3] = ii-1; // hit number.
721 timeAmplitude *= norm;
723 // ListOfFiredCells(arg,timeAmplitude,alst,padr);
724 Double_t charge = timeAmplitude;
725 charge += fHitMap2->GetSignal(index,it-1);
726 fHitMap2->SetHit(index, it-1, charge);
727 fpList->AddSignal(index,it-1,itrack,ii-1,
728 mod->GetIndex(),timeAmplitude);
729 fAnodeFire[index] = kTRUE;
730 } // end if anodeAmplitude and loop over time in window
731 } // loop over anodes in window
732 } // end loop over "sub-hits"
733 } // end loop over hits
736 //______________________________________________________________________
737 void AliITSsimulationSDD::ListOfFiredCells(Int_t *arg,Double_t timeAmplitude,
738 TObjArray *alist,TClonesArray *padr){
739 // Returns the list of "fired" cells.
741 Int_t index = arg[0];
743 Int_t idtrack = arg[2];
744 Int_t idhit = arg[3];
745 Int_t counter = arg[4];
746 Int_t countadr = arg[5];
747 Double_t charge = timeAmplitude;
748 charge += fHitMap2->GetSignal(index,ik-1);
749 fHitMap2->SetHit(index, ik-1, charge);
752 Int_t it = (Int_t)((ik-1)/fScaleSize);
755 digits[2] = (Int_t)timeAmplitude;
757 if (idtrack >= 0) phys = (Float_t)timeAmplitude;
760 Double_t cellcharge = 0.;
761 AliITSTransientDigit* pdigit;
762 // build the list of fired cells and update the info
763 if (!fHitMap1->TestHit(index, it)) {
764 new((*padr)[countadr++]) TVector(3);
765 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
766 trinfo(0) = (Float_t)idtrack;
767 trinfo(1) = (Float_t)idhit;
768 trinfo(2) = (Float_t)timeAmplitude;
770 alist->AddAtAndExpand(new AliITSTransientDigit(phys,digits),counter);
771 fHitMap1->SetHit(index, it, counter);
773 pdigit=(AliITSTransientDigit*)alist->At(alist->GetLast());
775 TObjArray *trlist=(TObjArray*)pdigit->TrackList();
776 trlist->Add(&trinfo);
778 pdigit = (AliITSTransientDigit*) fHitMap1->GetHit(index, it);
779 for(Int_t kk=0;kk<fScaleSize;kk++) {
780 cellcharge += fHitMap2->GetSignal(index,fScaleSize*it+kk);
783 (*pdigit).fSignal = (Int_t)cellcharge;
784 (*pdigit).fPhysics += phys;
785 // update list of tracks
786 TObjArray* trlist = (TObjArray*)pdigit->TrackList();
787 Int_t lastentry = trlist->GetLast();
788 TVector *ptrkp = (TVector*)trlist->At(lastentry);
789 TVector &trinfo = *ptrkp;
790 Int_t lasttrack = Int_t(trinfo(0));
791 Float_t lastcharge=(trinfo(2));
792 if (lasttrack==idtrack ) {
793 lastcharge += (Float_t)timeAmplitude;
794 trlist->RemoveAt(lastentry);
795 trinfo(0) = lasttrack;
797 trinfo(2) = lastcharge;
798 trlist->AddAt(&trinfo,lastentry);
800 new((*padr)[countadr++]) TVector(3);
801 TVector &trinfo=*((TVector*) (*padr)[countadr-1]);
802 trinfo(0) = (Float_t)idtrack;
803 trinfo(1) = (Float_t)idhit;
804 trinfo(2) = (Float_t)timeAmplitude;
805 trlist->Add(&trinfo);
806 } // end if lasttrack==idtrack
809 // check the track list - debugging
810 Int_t trk[20], htrk[20];
812 Int_t nptracks = trlist->GetEntriesFast();
815 for (tr=0;tr<nptracks;tr++) {
816 TVector *pptrkp = (TVector*)trlist->At(tr);
817 TVector &pptrk = *pptrkp;
818 trk[tr] = Int_t(pptrk(0));
819 htrk[tr] = Int_t(pptrk(1));
820 chtrk[tr] = (pptrk(2));
821 cout << "nptracks "<<nptracks << endl;
824 } // end if GetDebug()
827 // update counter and countadr for next call.
832 //____________________________________________
833 void AliITSsimulationSDD::AddDigit( Int_t i, Int_t j, Int_t signal ) {
835 Int_t size = AliITSdigitSPD::GetNTracks();
837 Int_t * tracks = new Int_t[size];
838 Int_t * hits = new Int_t[size];
840 Float_t * charges = new Float_t[size];
846 AliITSpListItem *pItem = fpList->GetpListItem( i, j );
849 for( Int_t l=0; l<size; l++ ) {
855 Int_t idtrack = pItem->GetTrack( 0 );
856 if( idtrack >= 0 ) phys = pItem->GetSignal();
859 for( Int_t l=0; l<size; l++ ) if(l<pItem->GetMaxKept()) {
860 tracks[l] = pItem->GetTrack( l );
861 hits[l] = pItem->GetHit( l );
862 charges[l] = pItem->GetSignal( l );
870 fITS->AddSimDigit( 1, phys, digits, tracks, hits, charges );
875 //______________________________________________________________________
876 void AliITSsimulationSDD::ChargeToSignal(Bool_t bAddNoise) {
877 // add baseline, noise, electronics and ADC saturation effects
879 char opt1[20], opt2[20];
880 GetResp()->ParamOptions(opt1,opt2);
881 char *read = strstr(opt1,"file");
882 Double_t baseline, noise;
885 static Bool_t readfile=kTRUE;
886 //read baseline and noise from file
887 if (readfile) ReadBaseline();
889 } else GetResp()->GetNoiseParam(noise,baseline);
893 Float_t maxadc = GetResp()->MaxAdc();
895 for (i=0;i<fNofMaps;i++) {
896 if( !fAnodeFire[i] ) continue;
897 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
898 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
899 fInZR[k] = fHitMap2->GetSignal(i,k);
901 contrib = (baseline + noise*gRandom->Gaus());
905 for(k=0; k<fMaxNofSamples; k++) {
906 Double_t newcont = 0.;
907 Double_t maxcont = 0.;
908 for(kk=0;kk<fScaleSize;kk++) {
909 newcont = fInZR[fScaleSize*k+kk];
910 if(newcont > maxcont) maxcont = newcont;
913 if (newcont >= maxadc) newcont = maxadc -1;
914 if(newcont >= baseline){
915 Warning("","newcont=%d>=baseline=%d",newcont,baseline);
918 fHitMap2->SetHit(i,k,newcont);
920 } // end for i loop over anodes
924 for (i=0;i<fNofMaps;i++) {
925 if( !fAnodeFire[i] ) continue;
926 if (read && i<fNofMaps) GetAnodeBaseline(i,baseline,noise);
927 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
928 fInZR[k] = fHitMap2->GetSignal(i,k);
930 contrib = (baseline + noise*gRandom->Gaus());
935 FastFourierTransform(fElectronics,&fInZR[0],&fInZI[0],1);
936 for(k=0; k<fScaleSize*fMaxNofSamples; k++) {
937 Double_t rw = fElectronics->GetTraFunReal(k);
938 Double_t iw = fElectronics->GetTraFunImag(k);
939 fOutZR[k] = fInZR[k]*rw - fInZI[k]*iw;
940 fOutZI[k] = fInZR[k]*iw + fInZI[k]*rw;
942 FastFourierTransform(fElectronics,&fOutZR[0],&fOutZI[0],-1);
943 for(k=0; k<fMaxNofSamples; k++) {
944 Double_t newcont1 = 0.;
945 Double_t maxcont1 = 0.;
946 for(kk=0;kk<fScaleSize;kk++) {
947 newcont1 = fOutZR[fScaleSize*k+kk];
948 if(newcont1 > maxcont1) maxcont1 = newcont1;
951 if (newcont1 >= maxadc) newcont1 = maxadc -1;
952 fHitMap2->SetHit(i,k,newcont1);
954 } // end for i loop over anodes
957 //____________________________________________________________________
958 void AliITSsimulationSDD::ApplyDeadChannels() {
959 // Set dead channel signal to zero
960 AliITSresponseSDD * response = (AliITSresponseSDD *)GetResp();
963 if( response->GetDeadModules() == 0 &&
964 response->GetDeadChips() == 0 &&
965 response->GetDeadChannels() == 0 )
968 static AliITS *iTS = (AliITS*)gAlice->GetModule( "ITS" );
970 Int_t fMaxNofSamples = GetSeg()->Npx();
971 AliITSgeom *geom = iTS->GetITSgeom();
972 Int_t firstSDDMod = geom->GetStartDet( 1 );
974 for( Int_t j=0; j<2; j++ ) {
975 Int_t mod = (fModule-firstSDDMod)*2 + j;
976 for( Int_t u=0; u<response->Chips(); u++ )
977 for( Int_t v=0; v<response->Channels(); v++ ) {
978 Float_t Gain = response->Gain( mod, u, v );
979 for( Int_t k=0; k<fMaxNofSamples; k++ ) {
980 Int_t i = j*response->Chips()*response->Channels() +
981 u*response->Channels() +
983 Double_t signal = Gain * fHitMap2->GetSignal( i, k );
984 fHitMap2->SetHit( i, k, signal ); ///
989 //______________________________________________________________________
990 void AliITSsimulationSDD::ApplyCrosstalk() {
991 // function add the crosstalk effect to signal
992 // temporal function, should be checked...!!!
994 Int_t fNofMaps = GetSeg()->Npz();
995 Int_t fMaxNofSamples = GetSeg()->Npx();
997 // create and inizialice crosstalk map
998 Float_t* ctk = new Float_t[fNofMaps*fMaxNofSamples+1];
1000 Error( "ApplyCrosstalk", "no memory for temporal map: exit \n" );
1003 memset( ctk, 0, sizeof(Float_t)*(fNofMaps*fMaxNofSamples+1) );
1005 Double_t noise, baseline;
1006 GetResp()->GetNoiseParam( noise, baseline );
1008 for( Int_t z=0; z<fNofMaps; z++ ) {
1014 for( Int_t l=0; l<fMaxNofSamples; l++ ) {
1015 Float_t fadc = (Float_t)fHitMap2->GetSignal( z, l );
1016 if( fadc > baseline ) {
1017 if( on == kFALSE && l<fMaxNofSamples-4 ) {
1018 Float_t fadc1 = (Float_t)fHitMap2->GetSignal( z, l+1 );
1019 if( fadc1 < fadc ) continue;
1026 else { // end fadc > baseline
1030 // make smooth derivative
1031 Float_t* dev = new Float_t[fMaxNofSamples+1];
1032 memset( dev, 0, sizeof(Float_t)*(fMaxNofSamples+1) );
1034 Error( "ApplyCrosstalk",
1035 "no memory for temporal array: exit \n" );
1038 for( Int_t i=tstart; i<tstop; i++ ) {
1039 if( i > 2 && i < fMaxNofSamples-2 )
1040 dev[i] = -0.2*fHitMap2->GetSignal( z,i-2 )
1041 -0.1*fHitMap2->GetSignal( z,i-1 )
1042 +0.1*fHitMap2->GetSignal( z,i+1 )
1043 +0.2*fHitMap2->GetSignal( z,i+2 );
1046 // add crosstalk contribution to neibourg anodes
1047 for( Int_t i=tstart; i<tstop; i++ ) {
1048 Int_t anode = z - 1;
1049 Int_t i1 = (Int_t)((i-tstart)*.61+tstart+0.5); //
1050 Float_t ctktmp = -dev[i1] * 0.25;
1052 ctk[anode*fMaxNofSamples+i] += ctktmp;
1055 if( anode < fNofMaps ) {
1056 ctk[anode*fMaxNofSamples+i] += ctktmp;
1061 } // if( nTsteps > 2 )
1063 } // if( on == kTRUE )
1068 for( Int_t a=0; a<fNofMaps; a++ )
1069 for( Int_t t=0; t<fMaxNofSamples; t++ ) {
1070 Float_t signal = fHitMap2->GetSignal(a,t)+ctk[a*fMaxNofSamples+t];
1071 fHitMap2->SetHit( a, t, signal );
1076 //______________________________________________________________________
1077 void AliITSsimulationSDD::GetAnodeBaseline(Int_t i,Double_t &baseline,
1079 // Returns the Baseline for a particular anode.
1080 baseline = fBaseline[i];
1083 //______________________________________________________________________
1084 void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl,
1086 // Returns the compression alogirthm parameters
1087 Int_t size = fD.GetSize();
1089 db=fD[i]; tl=fT1[i]; th=fT2[i];
1091 if (size <= 2 && i>=fNofMaps/2) {
1092 db=fD[1]; tl=fT1[1]; th=fT2[1];
1094 db=fD[0]; tl=fT1[0]; th=fT2[0];
1095 } // end if size <=2 && i>=fNofMaps/2
1098 //______________________________________________________________________
1099 void AliITSsimulationSDD::CompressionParam(Int_t i,Int_t &db,Int_t &tl){
1100 // returns the compression alogirthm parameters
1101 Int_t size = fD.GetSize();
1104 db=fD[i]; tl=fT1[i];
1106 if (size <= 2 && i>=fNofMaps/2) {
1107 db=fD[1]; tl=fT1[1];
1109 db=fD[0]; tl=fT1[0];
1110 } // end if size <=2 && i>=fNofMaps/2
1111 // Warning("CompressionParam",
1112 // "Size= %d . Values i=%d ; db= %d ; tl= %d",
1114 } // end if size > 2
1116 //______________________________________________________________________
1117 void AliITSsimulationSDD::SetCompressParam(){
1118 // Sets the compression alogirthm parameters
1121 GetResp()->GiveCompressParam(cp);
1122 for (i=0; i<2; i++) {
1129 //______________________________________________________________________
1130 void AliITSsimulationSDD::ReadBaseline(){
1131 // read baseline and noise from file - either a .root file and in this
1132 // case data should be organised in a tree with one entry for each
1133 // module => reading should be done accordingly
1134 // or a classic file and do smth. like this:
1135 // Read baselines and noise for SDD
1139 char input[100], base[100], param[100];
1142 GetResp()->Filenames(input,base,param);
1145 filtmp = gSystem->ExpandPathName(fFileName.Data());
1146 FILE *bline = fopen(filtmp,"r");
1150 while(fscanf(bline,"%d %f %f",&pos, &bl, &n) != EOF) {
1152 Error("ReadBaseline","Anode number not in increasing order!",
1155 } // end if pos != na+1
1161 Error("ReadBaseline"," THE BASELINE FILE %s DOES NOT EXIST !",filtmp);
1168 //______________________________________________________________________
1169 Int_t AliITSsimulationSDD::Convert10to8(Int_t signal) const {
1170 // To the 10 to 8 bit lossive compression.
1171 // code from Davide C. and Albert W.
1173 if (signal < 128) return signal;
1174 if (signal < 256) return (128+((signal-128)>>1));
1175 if (signal < 512) return (192+((signal-256)>>3));
1176 if (signal < 1024) return (224+((signal-512)>>4));
1180 //______________________________________________________________________
1181 AliITSMap* AliITSsimulationSDD::HitMap(Int_t i){
1182 //Return the correct map.
1184 return ((i==0)? fHitMap1 : fHitMap2);
1187 //______________________________________________________________________
1188 void AliITSsimulationSDD::ZeroSuppression(const char *option) {
1189 // perform the zero suppresion
1191 if (strstr(option,"2D")) {
1192 //Init2D(); // activate if param change module by module
1194 } else if (strstr(option,"1D")) {
1195 //Init1D(); // activate if param change module by module
1197 } else StoreAllDigits();
1199 //______________________________________________________________________
1200 void AliITSsimulationSDD::Init2D(){
1201 // read in and prepare arrays: fD, fT1, fT2
1202 // savemu[nanodes], savesigma[nanodes]
1203 // read baseline and noise from file - either a .root file and in this
1204 // case data should be organised in a tree with one entry for each
1205 // module => reading should be done accordingly
1206 // or a classic file and do smth. like this ( code from Davide C. and
1208 // Read 2D zero-suppression parameters for SDD
1210 if (!strstr(fParam.Data(),"file")) return;
1212 Int_t na,pos,tempTh;
1214 Float_t *savemu = new Float_t [fNofMaps];
1215 Float_t *savesigma = new Float_t [fNofMaps];
1216 char input[100],basel[100],par[100];
1219 GetResp()->Thresholds(tmp1,tmp2);
1220 Int_t minval = static_cast<Int_t>(tmp1);
1222 GetResp()->Filenames(input,basel,par);
1225 filtmp = gSystem->ExpandPathName(fFileName.Data());
1226 FILE *param = fopen(filtmp,"r");
1230 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1232 Error("Init2D","Anode number not in increasing order!",filtmp);
1234 } // end if pos != na+1
1236 savesigma[na] = sigma;
1237 if ((2.*sigma) < mu) {
1238 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1241 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1242 if (tempTh < 0) tempTh=0;
1244 tempTh = (Int_t)floor(mu+3.0*sigma+0.5) - minval;
1245 if (tempTh < 0) tempTh=0;
1250 Error("Init2D","THE FILE %s DOES NOT EXIST !",filtmp);
1257 delete [] savesigma;
1259 //______________________________________________________________________
1260 void AliITSsimulationSDD::Compress2D(){
1261 // simple ITS cluster finder -- online zero-suppression conditions
1265 GetResp()->Thresholds(tmp1,tmp2);
1266 Int_t minval = static_cast<Int_t>(tmp1);
1267 Bool_t write = GetResp()->OutputOption();
1268 Bool_t do10to8 = GetResp()->Do10to8();
1269 Int_t nz, nl, nh, low, i, j;
1271 for (i=0; i<fNofMaps; i++) {
1272 CompressionParam(i,db,tl,th);
1277 for (j=0; j<fMaxNofSamples; j++) {
1278 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1279 signal -= db; // if baseline eq. is done here
1280 if (signal <= 0) {nz++; continue;}
1281 if ((signal - tl) < minval) low++;
1282 if ((signal - th) >= minval) {
1285 FindCluster(i,j,signal,minval,cond);
1287 ((TMath::Abs(fHitMap2->GetSignal(i,j-1))-th)>=minval)){
1288 if(do10to8) signal = Convert10to8(signal);
1289 AddDigit(i,j,signal);
1290 } // end if cond&&j&&()
1291 } else if ((signal - tl) >= minval) nl++;
1292 } // end for j loop time samples
1293 if (write) TreeB()->Fill(nz,nl,nh,low,i+1);
1294 } //end for i loop anodes
1298 sprintf(hname,"TNtuple%d_%d",fModule,fEvent);
1299 TreeB()->Write(hname);
1304 //______________________________________________________________________
1305 void AliITSsimulationSDD::FindCluster(Int_t i,Int_t j,Int_t signal,
1306 Int_t minval,Bool_t &cond){
1307 // Find clusters according to the online 2D zero-suppression algorithm
1308 Bool_t do10to8 = GetResp()->Do10to8();
1309 Bool_t high = kFALSE;
1311 fHitMap2->FlagHit(i,j);
1313 // check the online zero-suppression conditions
1315 const Int_t kMaxNeighbours = 4;
1318 Int_t xList[kMaxNeighbours], yList[kMaxNeighbours];
1319 GetSeg()->Neighbours(i,j,&nn,xList,yList);
1321 for (in=0; in<nn; in++) {
1324 if (fHitMap2->TestHit(ix,iy)==kUnused) {
1325 CompressionParam(ix,dbx,tlx,thx);
1326 Int_t qn = (Int_t)(fHitMap2->GetSignal(ix,iy));
1327 qn -= dbx; // if baseline eq. is done here
1328 if ((qn-tlx) < minval) {
1329 fHitMap2->FlagHit(ix,iy);
1332 if ((qn - thx) >= minval) high=kTRUE;
1334 if(do10to8) signal = Convert10to8(signal);
1335 AddDigit(i,j,signal);
1337 if(do10to8) qns = Convert10to8(qn);
1339 if (!high) AddDigit(ix,iy,qns);
1341 if(!high) fHitMap2->FlagHit(ix,iy);
1342 } // end if qn-tlx < minval
1344 } // end for in loop over neighbours
1346 //______________________________________________________________________
1347 void AliITSsimulationSDD::Init1D(){
1348 // this is just a copy-paste of input taken from 2D algo
1349 // Torino people should give input
1350 // Read 1D zero-suppression parameters for SDD
1352 if (!strstr(fParam.Data(),"file")) return;
1354 Int_t na,pos,tempTh;
1356 Float_t *savemu = new Float_t [fNofMaps];
1357 Float_t *savesigma = new Float_t [fNofMaps];
1358 char input[100],basel[100],par[100];
1361 GetResp()->Thresholds(tmp1,tmp2);
1362 Int_t minval = static_cast<Int_t>(tmp1);
1364 GetResp()->Filenames(input,basel,par);
1367 // set first the disable and tol param
1370 filtmp = gSystem->ExpandPathName(fFileName.Data());
1371 FILE *param = fopen(filtmp,"r");
1375 fscanf(param,"%d %d %d %d ", &fT2[0], &fT2[1], &fTol[0], &fTol[1]);
1376 while(fscanf(param,"%d %f %f",&pos, &mu, &sigma) != EOF) {
1378 Error("Init1D","Anode number not in increasing order!",filtmp);
1380 } // end if pos != na+1
1382 savesigma[na]=sigma;
1383 if ((2.*sigma) < mu) {
1384 fD[na] = (Int_t)floor(mu - 2.0*sigma + 0.5);
1387 tempTh = (Int_t)floor(mu+2.25*sigma+0.5) - minval;
1388 if (tempTh < 0) tempTh=0;
1393 Error("Init1D","THE FILE %s DOES NOT EXIST !",filtmp);
1400 delete [] savesigma;
1402 //______________________________________________________________________
1403 void AliITSsimulationSDD::Compress1D(){
1404 // 1D zero-suppression algorithm (from Gianluca A.)
1405 Int_t dis,tol,thres,decr,diff;
1406 UChar_t *str=fStream->Stream();
1408 Bool_t do10to8=GetResp()->Do10to8();
1412 for (k=0; k<2; k++) {
1415 for (i=0; i<fNofMaps/2; i++) {
1416 Bool_t firstSignal=kTRUE;
1417 Int_t idx=i+k*fNofMaps/2;
1418 if( !fAnodeFire[idx] ) continue;
1419 CompressionParam(idx,decr,thres);
1421 for (j=0; j<fMaxNofSamples; j++) {
1422 Int_t signal=(Int_t)(fHitMap2->GetSignal(idx,j));
1423 signal -= decr; // if baseline eq.
1424 if(do10to8) signal = Convert10to8(signal);
1425 if (signal <= thres) {
1429 // write diff in the buffer for HuffT
1430 str[counter]=(UChar_t)diff;
1433 } // end if signal <= thres
1435 if (diff > 127) diff=127;
1436 if (diff < -128) diff=-128;
1438 // tol has changed to 8 possible cases ? - one can write
1439 // this if(TMath::Abs(diff)<tol) ... else ...
1440 if(TMath::Abs(diff)<tol) diff=0;
1441 // or keep it as it was before
1442 AddDigit(idx,j,last+diff);
1444 AddDigit(idx,j,signal);
1445 } // end if singal < dis
1447 // write diff in the buffer used to compute Huffman tables
1448 if (firstSignal) str[counter]=(UChar_t)signal;
1449 else str[counter]=(UChar_t)diff;
1453 } // end for j loop time samples
1454 } // end for i loop anodes one half of detector
1458 fStream->CheckCount(counter);
1460 // open file and write out the stream of diff's
1461 static Bool_t open=kTRUE;
1462 static TFile *outFile;
1463 Bool_t write = GetResp()->OutputOption();
1464 TDirectory *savedir = gDirectory;
1468 SetFileName("stream.root");
1469 cout<<"filename "<<fFileName<<endl;
1470 outFile=new TFile(fFileName,"recreate");
1471 cout<<"I have opened "<<fFileName<<" file "<<endl;
1478 fStream->ClearStream();
1480 // back to galice.root file
1481 if(savedir) savedir->cd();
1483 //______________________________________________________________________
1484 void AliITSsimulationSDD::StoreAllDigits(){
1485 // if non-zero-suppressed data
1486 Bool_t do10to8 = GetResp()->Do10to8();
1487 Int_t i, j, digits[3];
1489 for (i=0; i<fNofMaps; i++) {
1490 for (j=0; j<fMaxNofSamples; j++) {
1491 Int_t signal=(Int_t)(fHitMap2->GetSignal(i,j));
1492 if(do10to8) signal = Convert10to8(signal);
1496 fITS->AddRealDigit(1,digits);
1500 //______________________________________________________________________
1501 void AliITSsimulationSDD::CreateHistograms(Int_t scale){
1502 // Creates histograms of maps for debugging
1505 fHis=new TObjArray(fNofMaps);
1506 for (i=0;i<fNofMaps;i++) {
1507 TString sddName("sdd_");
1509 sprintf(candNum,"%d",i+1);
1510 sddName.Append(candNum);
1511 fHis->AddAt(new TH1F(sddName.Data(),"SDD maps",scale*fMaxNofSamples,
1512 0.,(Float_t) scale*fMaxNofSamples), i);
1515 //______________________________________________________________________
1516 void AliITSsimulationSDD::FillHistograms(){
1517 // fill 1D histograms from map
1521 for( Int_t i=0; i<fNofMaps; i++) {
1522 TH1F *hist =(TH1F *)fHis->UncheckedAt(i);
1523 Int_t nsamples = hist->GetNbinsX();
1524 for( Int_t j=0; j<nsamples; j++) {
1525 Double_t signal=fHitMap2->GetSignal(i,j);
1526 hist->Fill((Float_t)j,signal);
1530 //______________________________________________________________________
1531 void AliITSsimulationSDD::ResetHistograms(){
1532 // Reset histograms for this detector
1535 for (i=0;i<fNofMaps;i++ ) {
1536 if (fHis->At(i)) ((TH1F*)fHis->At(i))->Reset();
1539 //______________________________________________________________________
1540 TH1F *AliITSsimulationSDD::GetAnode(Int_t wing, Int_t anode) {
1541 // Fills a histogram from a give anode.
1543 if (!fHis) return 0;
1545 if(wing <=0 || wing > 2) {
1546 Warning("GetAnode","Wrong wing number: %d",wing);
1548 } // end if wing <=0 || wing >2
1549 if(anode <=0 || anode > fNofMaps/2) {
1550 Warning("GetAnode","Wrong anode number: %d",anode);
1552 } // end if ampde <=0 || andoe > fNofMaps/2
1554 Int_t index = (wing-1)*fNofMaps/2 + anode-1;
1555 return (TH1F*)(fHis->At(index));
1557 //______________________________________________________________________
1558 void AliITSsimulationSDD::WriteToFile(TFile *hfile) {
1559 // Writes the histograms to a file
1565 for(i=0; i<fNofMaps; i++) fHis->At(i)->Write(); //fAdcs[i]->Write();
1568 //______________________________________________________________________
1569 Float_t AliITSsimulationSDD::GetNoise() {
1570 // Returns the noise value
1571 //Bool_t do10to8=GetResp()->Do10to8();
1572 //noise will always be in the liniar part of the signal
1574 Int_t threshold = fT1[0];
1575 char opt1[20], opt2[20];
1577 GetResp()->ParamOptions(opt1,opt2);
1579 char *same = strstr(opt1,"same");
1580 Double_t noise,baseline;
1582 GetResp()->GetNoiseParam(noise,baseline);
1584 static Bool_t readfile=kTRUE;
1585 //read baseline and noise from file
1586 if (readfile) ReadBaseline();
1590 TCanvas *c2 = (TCanvas*)gROOT->GetListOfCanvases()->FindObject("c2");
1591 if(c2) delete c2->GetPrimitive("noisehist");
1592 if(c2) delete c2->GetPrimitive("anode");
1593 else c2=new TCanvas("c2");
1595 c2->SetFillColor(0);
1597 TH1F *noisehist = new TH1F("noisehist","noise",100,0.,(float)2*threshold);
1598 TH1F *anode = new TH1F("anode","Anode Projection",fMaxNofSamples,0.,
1599 (float)fMaxNofSamples);
1601 for (i=0;i<fNofMaps;i++) {
1602 CompressionParam(i,decr,threshold);
1603 if (!same) GetAnodeBaseline(i,baseline,noise);
1605 for (k=0;k<fMaxNofSamples;k++) {
1606 Float_t signal=(Float_t)fHitMap2->GetSignal(i,k);
1607 //if (signal <= (float)threshold) noisehist->Fill(signal-baseline);
1608 if (signal <= (float)(threshold+decr)) noisehist->Fill(signal);
1609 anode->Fill((float)k,signal);
1614 TF1 *gnoise = new TF1("gnoise","gaus",0.,threshold);
1615 noisehist->Fit("gnoise","RQ");
1618 Float_t mnoise = gnoise->GetParameter(1);
1619 cout << "mnoise : " << mnoise << endl;
1620 Float_t rnoise = gnoise->GetParameter(2);
1621 cout << "rnoise : " << rnoise << endl;
1625 //______________________________________________________________________
1626 void AliITSsimulationSDD::WriteSDigits(){
1627 // Fills the Summable digits Tree
1628 static AliITS *aliITS = (AliITS*)gAlice->GetModule("ITS");
1630 for( Int_t i=0; i<fNofMaps; i++ ) {
1631 if( !fAnodeFire[i] ) continue;
1632 for( Int_t j=0; j<fMaxNofSamples; j++ ) {
1633 Double_t sig = fHitMap2->GetSignal( i, j );
1635 Int_t jdx = j*fScaleSize;
1636 Int_t index = fpList->GetHitIndex( i, j );
1637 AliITSpListItem pItemTmp2( fModule, index, 0. );
1638 // put the fScaleSize analog digits in only one
1639 for( Int_t ik=0; ik<fScaleSize; ik++ ) {
1640 AliITSpListItem *pItemTmp = fpList->GetpListItem(i,jdx+ik);
1641 if( pItemTmp == 0 ) continue;
1642 pItemTmp2.Add( pItemTmp );
1644 pItemTmp2.AddSignalAfterElect( fModule, index, sig );
1645 pItemTmp2.AddNoise(fModule,index,fHitNoiMap2->GetSignal(i,j));
1646 aliITS->AddSumDigit( pItemTmp2 );
1647 } // end if (sig > 0.2)
1652 //______________________________________________________________________
1653 void AliITSsimulationSDD::PrintStatus() const {
1654 // Print SDD simulation Parameters
1656 cout << "**************************************************" << endl;
1657 cout << " Silicon Drift Detector Simulation Parameters " << endl;
1658 cout << "**************************************************" << endl;
1659 cout << "Flag for Perpendicular tracks: " << (Int_t) fFlag << endl;
1660 cout << "Flag for noise checking: " << (Int_t) fCheckNoise << endl;
1661 cout << "Flag to switch off electronics: " << (Int_t) fDoFFT << endl;
1662 cout << "Number pf Anodes used: " << fNofMaps << endl;
1663 cout << "Number of Time Samples: " << fMaxNofSamples << endl;
1664 cout << "Scale size factor: " << fScaleSize << endl;
1665 cout << "**************************************************" << endl;