1 /**************************************************************************
2 * Copyright(c) 2007-2009, 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 //////////////////////////////////////////////////////////////////////////
20 // Implementation of the class for bad channel treatment in the tracker //
21 // Stores 1 status bit for each SPD pixel and SDD anode: //
23 // 1 = good channel //
24 // Dead and noisy channels are read from AliITSCalibration objects //
25 // Origin: F.Prino, Torino, prino@to.infn.it //
27 //////////////////////////////////////////////////////////////////////////
30 #include "AliITSChannelStatus.h"
31 #include "AliITSCalibrationSPD.h"
32 #include "AliITSCalibrationSDD.h"
33 #include "AliITSCalibrationSSD.h"
34 #include "AliITSsegmentationSPD.h"
35 #include "AliITSsegmentationSDD.h"
36 #include "AliITSsegmentationSSD.h"
37 #include "AliCDBEntry.h"
41 ClassImp(AliITSChannelStatus)
44 //______________________________________________________________________
45 AliITSChannelStatus::AliITSChannelStatus():
51 // default constructor
53 //______________________________________________________________________
54 AliITSChannelStatus::AliITSChannelStatus(TString config):
60 // construt starting from an option passed via a TString
62 if(config.Contains("Ideal") || config.Contains("Default")){
66 //______________________________________________________________________
67 AliITSChannelStatus::AliITSChannelStatus(AliCDBManager *cdb):
73 // contruct starting from CDB
74 AliCDBEntry* spdEntryD = cdb->Get("ITS/Calib/SPDDead");
75 if (!spdEntryD) AliFatal("Cannot get CDB entry for SPDDead");
76 TObjArray* deadArrSPD = (TObjArray*)spdEntryD->GetObject();
77 if (!deadArrSPD) AliFatal("No object found in SPDDead file");
79 AliCDBEntry* spdEntrySparseD = cdb->Get("ITS/Calib/SPDSparseDead");
80 if (!spdEntrySparseD) AliFatal("Cannot get CDB entry for SPDSparseDead");
81 TObjArray* deadSparseArrSPD = (TObjArray*)spdEntrySparseD->GetObject();
82 if (!deadSparseArrSPD) AliFatal("No object found in SPDSparseDead file");
84 AliCDBEntry* spdEntryN = cdb->Get("ITS/Calib/SPDNoisy");
85 if (!spdEntryN) AliFatal("Cannot get CDB entry for SPDNoisy");
86 TObjArray* noisArrSPD = (TObjArray*)spdEntryN->GetObject();
87 if (!noisArrSPD) AliFatal("No object found in SPDNoisy file");
89 AliCDBEntry* sddEntry = cdb->Get("ITS/Calib/CalibSDD");
90 if (!sddEntry) AliFatal("Cannot get CDB entry for CalibSDD");
91 TObjArray* calArrSDD = (TObjArray*)sddEntry->GetObject();
92 if (!calArrSDD) AliFatal("No object found in CalibSDD file");
94 AliCDBEntry* ssdEntry = cdb->Get("ITS/Calib/CalibSSD");
95 if (!ssdEntry) AliFatal("Cannot get CDB entry for CalibSSD");
96 TObjArray* calArrSSD = (TObjArray*)ssdEntry->GetObject();
97 if (!calArrSSD) AliFatal("No object found in CalibSSD file");
100 InitFromOCDB(deadArrSPD,deadSparseArrSPD,noisArrSPD,calArrSDD,calArrSSD);
102 //______________________________________________________________________
103 AliITSChannelStatus::AliITSChannelStatus(const AliITSDetTypeRec *dtrec):
105 fSPDChannelStatus(0),
106 fSDDChannelStatus(0),
109 // contruct starting from det type rec
113 for(Int_t imod=0; imod<kSPDModules; imod++){
114 for(Int_t ix=0; ix<kSPDNpxPerModule; ix++){
115 for(Int_t iz=0; iz<kSPDNpzPerModule; iz++){
116 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
117 fSPDChannelStatus->SetBitNumber(index,kTRUE);
122 // Mask SPD dead pixels
123 AliITSCalibrationSPD* deadspd=(AliITSCalibrationSPD*)dtrec->GetSPDDeadModel(imod);
124 for(Int_t ipix=0; ipix<deadspd->GetNrBad();ipix++){
125 deadspd->GetBadPixel(ipix,ix,iz);
126 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
127 fSPDChannelStatus->SetBitNumber(index,kFALSE);
130 // Mask SPD sparse dead pixels
131 AliITSCalibrationSPD* deadSparseSpd=(AliITSCalibrationSPD*)dtrec->GetSPDSparseDeadModel(imod);
132 for(Int_t ipix=0; ipix<deadSparseSpd->GetNrBad();ipix++){
133 deadSparseSpd->GetBadPixel(ipix,ix,iz);
134 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
135 fSPDChannelStatus->SetBitNumber(index,kFALSE);
138 // Mask SPD noisy pixels
139 AliITSCalibrationSPD* noisspd=(AliITSCalibrationSPD*)dtrec->GetCalibrationModel(imod);
140 for(Int_t ipix=0; ipix<noisspd->GetNrBad();ipix++){
141 noisspd->GetBadPixel(ipix,ix,iz);
142 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
143 fSPDChannelStatus->SetBitNumber(index,kFALSE);
148 for(Int_t imod=0; imod<kSDDModules; imod++){
149 AliITSCalibrationSDD* calsdd=(AliITSCalibrationSDD*)dtrec->GetCalibrationModel(imod+kSPDModules);
150 for(Int_t ian=0; ian<kSDDAnodesPerModule; ian++){
151 Bool_t cstatus=kTRUE;
152 if(calsdd->IsBadChannel(ian)) cstatus=kFALSE;
153 Int_t index=imod*kSDDAnodesPerModule+ian;
154 fSDDChannelStatus->SetBitNumber(index,cstatus);
159 for (Int_t imod = 0; imod < kSSDModules; imod++) {
160 AliITSCalibrationSSD* calssd=(AliITSCalibrationSSD*)dtrec->GetCalibrationModel(kSSDFirstModule+imod);
161 for(Int_t ip=0; ip<kSSDStripsPerModule; ip++) {
162 Int_t index=imod*kSSDStripsPerModule+ip;
163 Bool_t cstatus = kTRUE;
164 if (ip < 768 && calssd->IsPChannelBad(ip))
166 if (ip >= 768 && calssd->IsNChannelBad(ip-768))
169 fSSDChannelStatus->SetBitNumber(index,cstatus);
173 //______________________________________________________________________
174 void AliITSChannelStatus::CreateArrays(){
175 // creates the TBit arrays
177 UInt_t nSPDchan=kSPDModules*kSPDNpxPerModule*kSPDNpzPerModule;
178 fSPDChannelStatus=new TBits(nSPDchan);
180 UInt_t nSDDchan=kSDDModules*kSDDAnodesPerModule;
181 fSDDChannelStatus=new TBits(nSDDchan);
183 UInt_t nSSDchan=kSSDModules*kSSDStripsPerModule;
184 fSSDChannelStatus=new TBits(nSSDchan);
187 //______________________________________________________________________
188 void AliITSChannelStatus::InitDefaults(){
189 // fill bitmaps setting all channels as good
190 for(Int_t imod=0; imod<kSPDModules; imod++){
191 for(Int_t ix=0; ix<kSPDNpxPerModule; ix++){
192 for(Int_t iz=0; iz<kSPDNpzPerModule; iz++){
193 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
194 fSPDChannelStatus->SetBitNumber(index,kTRUE);
198 for(Int_t imod=0; imod<kSDDModules; imod++){
199 for(Int_t ian=0; ian<kSDDAnodesPerModule; ian++){
200 Int_t index=imod*kSDDAnodesPerModule+ian;
201 fSDDChannelStatus->SetBitNumber(index,kTRUE);
204 for(Int_t imod=0; imod<kSSDModules; imod++){
205 for(Int_t is=0; is<kSSDStripsPerModule; is++){
206 Int_t index=imod*kSSDStripsPerModule+is;
207 fSSDChannelStatus->SetBitNumber(index,kTRUE);
211 //______________________________________________________________________
212 void AliITSChannelStatus::InitFromOCDB(const TObjArray* deadArrSPD, const TObjArray* /* deadSparseArrSPD */, const TObjArray* noisArrSPD, const TObjArray* calArrSDD, const TObjArray *calArrSSD){
213 // fills bitmaps from arrays of AliITSCalibrationSXD objects
216 for(Int_t imod=0; imod<kSPDModules; imod++){
217 for(Int_t ix=0; ix<kSPDNpxPerModule; ix++){
218 for(Int_t iz=0; iz<kSPDNpzPerModule; iz++){
219 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
220 fSPDChannelStatus->SetBitNumber(index,kTRUE);
225 // Mask SPD dead pixels
226 AliITSCalibrationSPD* deadspd=(AliITSCalibrationSPD*)deadArrSPD->At(imod);
227 for(Int_t ipix=0; ipix<deadspd->GetNrBad();ipix++){
228 deadspd->GetBadPixel(ipix,ix,iz);
229 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
230 fSPDChannelStatus->SetBitNumber(index,kFALSE);
233 // Mask SPD sparse dead pixels
234 AliITSCalibrationSPD* deadSparseSpd=(AliITSCalibrationSPD*)deadArrSPD->At(imod);
235 for(Int_t ipix=0; ipix<deadSparseSpd->GetNrBad();ipix++){
236 deadSparseSpd->GetBadPixel(ipix,ix,iz);
237 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
238 fSPDChannelStatus->SetBitNumber(index,kFALSE);
241 // Mask SPD noisy pixels
242 AliITSCalibrationSPD* noisspd=(AliITSCalibrationSPD*)noisArrSPD->At(imod);
243 for(Int_t ipix=0; ipix<noisspd->GetNrBad();ipix++){
244 noisspd->GetBadPixel(ipix,ix,iz);
245 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
246 fSPDChannelStatus->SetBitNumber(index,kFALSE);
251 for(Int_t imod=0; imod<kSDDModules; imod++){
252 AliITSCalibrationSDD* calsdd=(AliITSCalibrationSDD*)calArrSDD->At(imod);
253 for(Int_t ian=0; ian<kSDDAnodesPerModule; ian++){
254 Bool_t cstatus=kTRUE;
255 if(calsdd->IsBadChannel(ian)) cstatus=kFALSE;
256 Int_t index=imod*kSDDAnodesPerModule+ian;
257 fSDDChannelStatus->SetBitNumber(index,cstatus);
262 for (Int_t imod = 0; imod < kSSDModules; imod++) {
263 AliITSCalibrationSSD* calssd=(AliITSCalibrationSSD*)calArrSSD->At(imod);
264 for(Int_t ip=0; ip<kSSDStripsPerModule; ip++) {
265 Int_t index=imod*kSSDStripsPerModule+ip;
266 Bool_t cstatus = kTRUE;
267 if (ip < 768 && calssd->IsPChannelBad(ip))
269 if (ip >= 768 && calssd->IsNChannelBad(ip-768))
272 fSSDChannelStatus->SetBitNumber(index,cstatus);
276 //______________________________________________________________________
277 AliITSChannelStatus::AliITSChannelStatus(const AliITSChannelStatus& cstatus):
279 fSPDChannelStatus(cstatus.fSPDChannelStatus),
280 fSDDChannelStatus(cstatus.fSDDChannelStatus),
281 fSSDChannelStatus(cstatus.fSSDChannelStatus)
285 //______________________________________________________________________
286 AliITSChannelStatus& AliITSChannelStatus::operator=(const AliITSChannelStatus& cstatus)
288 // assignment operator
289 this->~AliITSChannelStatus();
290 new(this) AliITSChannelStatus(cstatus);
294 //______________________________________________________________________
295 AliITSChannelStatus::~AliITSChannelStatus(){
297 if(fSPDChannelStatus) delete fSPDChannelStatus;
298 if(fSDDChannelStatus) delete fSDDChannelStatus;
299 if(fSSDChannelStatus) delete fSSDChannelStatus;
302 //______________________________________________________________________
303 Bool_t AliITSChannelStatus::CheckBounds(Int_t imod, Int_t iz, Int_t ix) const {
304 // check for out of bounds
305 if(imod<0 || imod>=kSPDModules+kSDDModules+kSSDModules){
306 AliError(Form("Module number out of range 0-%d",kSPDModules+kSDDModules));
309 if(imod<kSPDModules){
310 if(ix<0 || ix>=kSPDNpxPerModule || iz<0 || iz>=kSPDNpzPerModule){
311 AliError("SPD: Pixel number out of range");
314 }else if (imod<kSSDFirstModule){
315 if(iz<0 || iz>=kSDDAnodesPerModule){
316 AliError("SDD: anode number out of range");
321 if(iz<0 || iz>=kSSDStripsPerModule){
322 AliError("SSD: strip number out of range");
328 //______________________________________________________________________
329 Bool_t AliITSChannelStatus::GetChannelStatus(Int_t imod, Int_t iz, Int_t ix) const {
330 // return status of inquired channel
331 if(CheckBounds(imod,iz,ix)==kFALSE) return kFALSE;
332 if(imod<kSPDModules){
333 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
334 return fSPDChannelStatus->TestBitNumber(index);
335 } else if (imod < kSSDFirstModule) {
337 Int_t index=imod*kSDDAnodesPerModule+iz;
338 return fSDDChannelStatus->TestBitNumber(index);
340 else { // SSD: iz is strip number 0-767 P-side, 768 - 1535 N-side
341 imod-=kSSDFirstModule;
342 Int_t index=imod*kSSDStripsPerModule+iz;
343 return fSSDChannelStatus->TestBitNumber(index);
346 //______________________________________________________________________
347 void AliITSChannelStatus::SetChannelStatus(Bool_t cstatus, Int_t imod, Int_t iz, Int_t ix){
348 // set status for given channel
349 if(CheckBounds(imod,iz,ix)==kFALSE) return;
350 if(imod<kSPDModules){
351 Int_t index=imod*kSPDNpxPerModule*kSPDNpzPerModule+ix*kSPDNpzPerModule+iz;
352 fSPDChannelStatus->SetBitNumber(index,cstatus);
353 }else if (imod < kSSDFirstModule) {
355 Int_t index=imod*kSDDAnodesPerModule+iz;
356 fSDDChannelStatus->SetBitNumber(index,cstatus);
358 else { // SSD: iz is strip number 0-767 P-side, 768 - 1535 N-side
359 imod-=kSSDFirstModule;
360 Int_t index=imod*kSSDStripsPerModule+iz;
361 return fSSDChannelStatus->SetBitNumber(index,cstatus);
364 //______________________________________________________________________
365 Bool_t AliITSChannelStatus::GetSDDLimits(Float_t zlocmin, Float_t zlocmax, Float_t xlocmin, Float_t xlocmax, Int_t& izmin, Int_t& izmax, Int_t& izmin2, Int_t& izmax2) const {
366 // Returns min. and max. anode numbers from local coordindate
367 AliITSsegmentationSDD *seg=new AliITSsegmentationSDD();
368 Float_t dummySpeed=6.5; // to avoid warnings in SDD segmentation
369 Float_t tolerance=0.9999;
370 seg->SetDriftSpeed(dummySpeed);
371 Float_t zHalfSize=0.5*seg->Dz()/10000.;
372 zHalfSize*=tolerance;
373 if(zlocmin<-zHalfSize) zlocmin=-zHalfSize;
374 if(zlocmax>zHalfSize) zlocmax=zHalfSize;
375 if(zlocmax<-zHalfSize || zlocmin>zHalfSize){
376 AliWarning("Search region completely outside module");
379 Float_t xHalfSize=seg->Dx()/10000.;
380 xHalfSize*=tolerance;
381 if(xlocmin<-xHalfSize) xlocmin=-xHalfSize;
382 if(xlocmax>xHalfSize) xlocmax=xHalfSize;
383 if(xlocmax<-xHalfSize || xlocmin>xHalfSize){
384 AliWarning("Search region completely outside module");
388 Int_t iSid1=seg->GetSideFromLocalX(xlocmin);
389 Int_t iSid2=seg->GetSideFromLocalX(xlocmax);
390 Int_t iz1,iz2,ixdummy;
391 seg->LocalToDet(xlocmin,zlocmin,ixdummy,iz1);
392 seg->LocalToDet(xlocmin,zlocmax,ixdummy,iz2);
393 izmin=TMath::Min(iz1,iz2);
394 izmax=TMath::Max(iz1,iz2);
398 seg->LocalToDet(xlocmax,zlocmin,ixdummy,iz1);
399 seg->LocalToDet(xlocmax,zlocmax,ixdummy,iz2);
400 izmin2=TMath::Min(iz1,iz2);
401 izmax2=TMath::Max(iz1,iz2);
406 //______________________________________________________________________
407 Bool_t AliITSChannelStatus::GetSPDLimits(Float_t zlocmin, Float_t zlocmax, Float_t xlocmin, Float_t xlocmax, Int_t& izmin, Int_t& izmax, Int_t& ixmin, Int_t& ixmax) const {
408 // Returns min. and max. pixel numbers from local coordindate
409 Float_t tolerance=0.9999;
410 AliITSsegmentationSPD *seg=new AliITSsegmentationSPD();
411 Float_t zHalfSize=0.5*seg->Dz()/10000.;
412 zHalfSize*=tolerance;
413 if(zlocmin<-zHalfSize) zlocmin=-zHalfSize;
414 if(zlocmax>zHalfSize) zlocmax=zHalfSize;
415 if(zlocmax<-zHalfSize || zlocmin>zHalfSize){
416 AliWarning("Search region completely outside module");
419 Float_t xHalfSize=0.5*seg->Dx()/10000.;
420 xHalfSize*=tolerance;
421 if(xlocmin<-xHalfSize) xlocmin=-xHalfSize;
422 if(xlocmax>xHalfSize) xlocmax=xHalfSize;
423 if(xlocmax<-xHalfSize || xlocmin>xHalfSize){
424 AliWarning("Search region completely outside module");
428 Int_t iz1,ix1,iz2,ix2;
429 seg->LocalToDet(xlocmin,zlocmin,ix1,iz1);
430 seg->LocalToDet(xlocmax,zlocmax,ix2,iz2);
431 izmin=TMath::Min(iz1,iz2);
432 izmax=TMath::Max(iz1,iz2);
433 ixmin=TMath::Min(ix1,ix2);
434 ixmax=TMath::Max(ix1,ix2);
438 //______________________________________________________________________
439 Bool_t AliITSChannelStatus::GetSSDLimits(Int_t layer, Float_t zlocmin, Float_t zlocmax, Float_t xlocmin, Float_t xlocmax, Int_t& iPmin, Int_t& iPmax, Int_t& iNmin, Int_t& iNmax) const {
440 // Returns min, max strip for SSD, given a search window
441 static AliITSsegmentationSSD seg;
443 AliDebug(2,Form("xmin %f zmin %f xmax %f zmax %f\n",xlocmin,zlocmin,xlocmax,zlocmax));
447 seg.GetPadIxz(xlocmin,zlocmin,p,n);
450 AliDebug(5,Form("lay %d xmin, zmin p %d n %d\n",layer,p,n));
451 seg.GetPadIxz(xlocmax,zlocmin,p,n);
452 iPmin = TMath::Min(iPmin,p);
453 iPmax = TMath::Max(iPmax,p);
454 iNmin = TMath::Min(iNmin,n);
455 iNmax = TMath::Max(iNmax,n);
456 AliDebug(5,Form("lay %d xmax, zmin p %d n %d\n",layer,p,n));
457 seg.GetPadIxz(xlocmax,zlocmax,p,n);
458 iPmin = TMath::Min(iPmin,p);
459 iPmax = TMath::Max(iPmax,p);
460 iNmin = TMath::Min(iNmin,n);
461 iNmax = TMath::Max(iNmax,n);
462 AliDebug(5,Form("lay %d xmax, zmax p %d n %d\n",layer,p,n));
463 seg.GetPadIxz(xlocmin,zlocmax,p,n);
464 iPmin = TMath::Min(iPmin,p);
465 iPmax = TMath::Max(iPmax,p);
466 iNmin = TMath::Min(iNmin,n);
467 iNmax = TMath::Max(iNmax,n);
468 AliDebug(5,Form("lay %d xmin, zmax p %d n %d\n",layer,p,n));
474 if (iPmax >= kSSDStripsPerSide)
475 iPmax = kSSDStripsPerSide-1;
476 if (iNmax >= kSSDStripsPerSide)
477 iNmax = kSSDStripsPerSide-1;
478 AliDebug(2,Form("lay %d p %d %d n %d %d\n",layer,iPmin,iPmax,iNmin,iNmax));
481 //______________________________________________________________________
482 Bool_t AliITSChannelStatus::AnyBadInRoad(Int_t imod, Float_t zlocmin, Float_t zlocmax, Float_t xlocmin, Float_t xlocmax) const{
483 // Checks if there is at least one bad channel in the search road
484 // For SSD: return kTRUE if there is at least one bad strip on both sides
485 // if only bad strips on one side 1D clusters can be used
486 AliDebug(2,Form("checking for module %d",imod));
487 if(imod<kSPDModules){
488 Int_t izmin,izmax,ixmin,ixmax;
489 Bool_t retcode=GetSPDLimits(zlocmin,zlocmax,xlocmin,xlocmax,izmin,izmax,ixmin,ixmax);
490 if(!retcode) return kFALSE;
491 for(Int_t iz=izmin; iz<=izmax;iz++){
492 for(Int_t ix=ixmin; ix<=ixmax;ix++){
493 if(GetChannelStatus(imod,iz,ix)==kFALSE) return kTRUE;
496 }else if (imod < kSSDFirstModule) {
497 Int_t izmin,izmax,izmin2,izmax2;
498 Bool_t retcode=GetSDDLimits(zlocmin,zlocmax,xlocmin,xlocmax,izmin,izmax,izmin2,izmax2);
499 if(!retcode) return kFALSE;
500 for(Int_t iz=izmin; iz<=izmax;iz++){
501 if(GetChannelStatus(imod,iz,0)==kFALSE) { return kTRUE;}
503 if(izmin2!=-1 && izmax2!=-1){
504 for(Int_t iz=izmin2; iz<=izmax2;iz++){
505 if(GetChannelStatus(imod,iz,0)==kFALSE) { return kTRUE;}
511 if (imod > kSSDMaxModLay5)
513 Int_t iPmin,iPmax,iNmin,iNmax;
514 Bool_t retcode=GetSSDLimits(layer,zlocmin,zlocmax,xlocmin,xlocmax,iPmin,iPmax,iNmin,iNmax);
515 if(!retcode) return kFALSE;
517 for(Int_t iP=iPmin; iP<=iPmax;iP++){
518 if(GetChannelStatus(imod,iP,0)==kFALSE) nPbad++;
522 for(Int_t iN=iNmin; iN<=iNmax;iN++){
523 if(GetChannelStatus(imod,iN+768,0)==kFALSE) { return kTRUE; }
528 //______________________________________________________________________
529 Float_t AliITSChannelStatus::FractionOfBadInRoad(Int_t imod, Float_t zlocmin, Float_t zlocmax, Float_t xlocmin, Float_t xlocmax) const{
530 // Calculate the fraction of bad channels in the road
531 // Note: SSD returns fraction of dead strips on 'best' side. This
532 // is not proportional to dead surface area.
535 if(imod<kSPDModules){
536 Int_t izmin,izmax,ixmin,ixmax;
537 Bool_t retcode=GetSPDLimits(zlocmin,zlocmax,xlocmin,xlocmax,izmin,izmax,ixmin,ixmax);
538 if(!retcode) return 0.;
539 for(Int_t iz=izmin; iz<=izmax;iz++){
540 for(Int_t ix=ixmin; ix<=ixmax;ix++){
542 if(GetChannelStatus(imod,iz,ix)==kFALSE) badChan+=1.;
545 }else if (imod < kSSDFirstModule) {
546 Int_t izmin,izmax,izmin2,izmax2;
547 Bool_t retcode=GetSDDLimits(zlocmin,zlocmax,xlocmin,xlocmax,izmin,izmax,izmin2,izmax2);
548 if(!retcode) return 0.;
549 for(Int_t iz=izmin; iz<=izmax;iz++){
551 if(GetChannelStatus(imod,iz,0)==kFALSE) badChan+=1.;
553 if(izmin2!=-1 && izmax2!=-1){
554 for(Int_t iz=izmin2; iz<=izmax2;iz++){
556 if(GetChannelStatus(imod,iz,0)==kFALSE) badChan+=1.;
562 if (imod > kSSDMaxModLay5)
564 Int_t iPmin,iPmax,iNmin,iNmax;
565 Bool_t retcode=GetSSDLimits(layer,zlocmin,zlocmax,xlocmin,xlocmax,iPmin,iPmax,iNmin,iNmax);
566 if(!retcode) return kFALSE;
568 for(Int_t iP=iPmin; iP<=iPmax;iP++){
569 if(GetChannelStatus(imod,iP,0)==kFALSE) nPbad++;
571 Float_t fracP = (Float_t) nPbad / (iPmax-iPmin+1);
575 for(Int_t iN=iNmin; iN<=iNmax;iN++){
576 if(GetChannelStatus(imod,iN+768,0)==kFALSE) nNbad++;
578 Float_t fracN = (Float_t) nNbad / (iPmax-iPmin+1);
579 return TMath::Min(fracP,fracN);
581 if(totChan==0.) return 0.;
582 else return badChan/totChan;