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 **************************************************************************/
16 /** @file AliFMDParameters.cxx
17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Mon Mar 27 12:44:26 2006
19 @brief Manager of FMD parameters
21 //____________________________________________________________________
23 // Forward Multiplicity Detector based on Silicon wafers.
25 // This class is a singleton that handles various parameters of
27 // The manager normally serves the parameters from the Conditions
28 // Database (CDB). These are retrivied by the member function
29 // `Init'. Optionally, the class can serve hard-coded constants, if
30 // no CDB is available.
32 #include "AliFMDDebug.h" // ALILOG_H
33 #include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
34 #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
35 #include "AliFMDRing.h" // ALIFMDRING_H
36 #include "AliFMDCalibGain.h" // ALIFMDCALIBGAIN_H
37 #include "AliFMDCalibPedestal.h" // ALIFMDCALIBPEDESTAL_H
38 #include "AliFMDCalibSampleRate.h" // ALIFMDCALIBSAMPLERATE_H
39 #include "AliFMDCalibStripRange.h" // ALIFMDCALIBSTRIPRANGE_H
40 #include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H
41 #include <AliCDBManager.h> // ALICDBMANAGER_H
42 #include <AliCDBEntry.h> // ALICDBMANAGER_H
43 #include <AliFMDPreprocessor.h>
45 #include <Riostream.h>
51 //====================================================================
52 ClassImp(AliFMDParameters)
54 ; // This is here to keep Emacs for indenting the next line
57 //____________________________________________________________________
58 AliFMDParameters* AliFMDParameters::fgInstance = 0;
60 //____________________________________________________________________
61 const char* AliFMDParameters::fgkPulseGain = "FMD/Calib/PulseGain";
62 const char* AliFMDParameters::fgkPedestal = "FMD/Calib/Pedestal";
63 const char* AliFMDParameters::fgkDead = "FMD/Calib/Dead";
64 const char* AliFMDParameters::fgkSampleRate = "FMD/Calib/SampleRate";
65 const char* AliFMDParameters::fgkAltroMap = "FMD/Calib/AltroMap";
66 const char* AliFMDParameters::fgkZeroSuppression = "FMD/Calib/ZeroSuppression";
67 const char* AliFMDParameters::fgkStripRange = "FMD/Calib/StripRange";
70 //____________________________________________________________________
72 AliFMDParameters::Instance()
74 // Get static instance
75 if (!fgInstance) fgInstance = new AliFMDParameters;
79 //____________________________________________________________________
80 AliFMDParameters::AliFMDParameters()
88 fFixedPedestalWidth(0),
89 fFixedZeroSuppression(0),
96 fHasRcuTrailer(kTRUE),
97 fHasCompleteHeader(kTRUE),
106 // Default constructor
108 SetAltroChannelSize();
109 SetChannelsPerAltro();
110 SetZeroSuppression();
119 //__________________________________________________________________
121 AliFMDParameters::Init(Bool_t forceReInit, UInt_t what)
123 // Initialize the parameters manager. We need to get stuff from the
125 if (forceReInit) fIsInit = kFALSE;
127 if (what & kPulseGain) InitPulseGain();
128 if (what & kPedestal) InitPedestal();
129 if (what & kDeadMap) InitDeadMap();
130 if (what & kSampleRate) InitSampleRate();
131 if (what & kZeroSuppression) InitZeroSuppression();
132 if (what & kAltroMap) InitAltroMap();
135 //__________________________________________________________________
137 AliFMDParameters::Init(AliFMDPreprocessor* pp, Bool_t forceReInit, UInt_t what)
139 // Initialize the parameters manager. We need to get stuff from the
141 if (forceReInit) fIsInit = kFALSE;
143 if (what & kPulseGain) InitPulseGain(pp);
144 if (what & kPedestal) InitPedestal(pp);
145 if (what & kDeadMap) InitDeadMap(pp);
146 if (what & kSampleRate) InitSampleRate(pp);
147 if (what & kZeroSuppression) InitZeroSuppression(pp);
148 if (what & kAltroMap) InitAltroMap(pp);
152 //__________________________________________________________________
153 #define DET2IDX(det,ring,sec,str) \
154 (det * 1000 + (ring == 'I' ? 0 : 512) + str)
156 //__________________________________________________________________
158 AliFMDParameters::Draw(Option_t* option)
162 kPulseGain, // Path to PulseGain calib object
163 kThreshold, // Path to PulseGain calib object
164 kPedestal, // Path to Pedestal calib object
165 kPedestalWidth, // Path to Pedestal calib object
166 kDead, // Path to Dead calib object
167 kSampleRate, // Path to SampleRate calib object
168 kAltroMap, // Path to AltroMap calib object
169 kZeroSuppression, // Path to ZeroSuppression cal object
170 kMinStripRange, // Path to strip range cal object
171 kMaxStripRange // Path to strip range cal object
175 if (opt.Contains("dead", TString::kIgnoreCase))
177 else if (opt.Contains("threshold",TString::kIgnoreCase))
179 else if (opt.Contains("gain",TString::kIgnoreCase))
181 else if (opt.Contains("pedestal",TString::kIgnoreCase))
183 else if (opt.Contains("noise",TString::kIgnoreCase))
184 what = kPedestalWidth;
185 else if (opt.Contains("zero",TString::kIgnoreCase))
186 what = kZeroSuppression;
187 else if (opt.Contains("rate",TString::kIgnoreCase))
189 else if (opt.Contains("min",TString::kIgnoreCase))
190 what = kMinStripRange;
191 else if (opt.Contains("max",TString::kIgnoreCase))
192 what = kMaxStripRange;
193 else if (opt.Contains("map",TString::kIgnoreCase))
196 Warning("Draw", "unknown parameter: %s\n\tShould be one of\n\t"
197 "dead, threshold, gain, pedestal, noise, zero, rate, "
203 TArrayD xbins(3 * 512 + 2 * 256 + 5);
206 for (UShort_t det = 1; det <= 3; det++) {
207 UShort_t nRings = (det == 1 ? 1 : 2);
208 for (UShort_t iring = 0; iring < nRings; iring++) {
209 UShort_t nStrip = (iring == 0 ? 512 : 256);
210 Char_t ring = (iring == 0 ? 'I' : 'O');
211 for (UShort_t str = 0; str < nStrip; str++) {
212 // UShort_t nSec = (iring == 0 ? 20 : 40);
213 // Char_t ring = (iring == 0 ? 'I' : 'O');
214 // for (UShort_t sec = 0; sec < nSec; sec++) {
215 Int_t idx = DET2IDX(det, ring, 0, str);
216 // Int_t idx = DET2IDX(det, ring, sec, 0);
218 xbins[i-1] = idx - .5;
229 for (Int_t i = 0; i < ybins.fN; i++) ybins[i] = Float_t(i - .5);
230 TH2D* hist = new TH2D("calib", Form("Calibration %s", option),
231 xbins.fN-1, xbins.fArray,
232 ybins.fN-1, ybins.fArray);
233 hist->GetXaxis()->SetTitle("1000 #times detector + 512 #times ring + strip");
234 hist->GetYaxis()->SetTitle("sector");
236 // hist->Draw("Lego");
239 for (UShort_t det = 1; det <= 3; det++) {
240 UShort_t nRings = (det == 1 ? 1 : 2);
241 for (UShort_t iring = 0; iring < nRings; iring++) {
242 UShort_t nSector = (iring == 0 ? 20 : 40);
243 UShort_t nStrip = (iring == 0 ? 512 : 256);
244 Char_t ring = (iring == 0 ? 'I' : 'O');
245 for (UShort_t sec = 0; sec < nSector; sec++) {
246 for (UShort_t str = 0; str < nStrip; str++) {
247 Int_t idx = DET2IDX(det, ring, sec, str);
251 case kPulseGain: // Path to PulseGain calib object
252 val = GetPulseGain(det,ring,sec,str); break;
253 case kThreshold: // Path to PulseGain calib object
254 val = GetThreshold(); break;
255 case kPedestal: // Path to Pedestal calib object
256 val = GetPedestal(det,ring,sec,str); break;
257 case kPedestalWidth: // Path to Pedestal calib object
258 val = GetPedestalWidth(det,ring,sec,str); break;
259 case kDead: // Path to Dead calib object
260 val = IsDead(det,ring,sec,str); break;
261 case kSampleRate: // Path to SampleRate calib object
262 val = GetSampleRate(det,ring,sec,str); break;
263 case kAltroMap: // Path to AltroMap calib object
264 Detector2Hardware(det,ring,sec,str, ddl, addr);
266 case kZeroSuppression: // Path to ZeroSuppression cal object
267 val = GetZeroSuppression(det,ring,sec,str); break;
268 case kMinStripRange: // Path to strip range cal object
269 val = GetMinStrip(det,ring,sec,str); break;
270 case kMaxStripRange: // Path to strip range cal object
271 val = GetMaxStrip(det,ring,sec,str); break;
273 hist->Fill(idx,sec,val);
274 // hist->Fill(idx,str,val);
282 //__________________________________________________________________
284 AliFMDParameters::Print(Option_t* option) const
286 // Print information.
287 // If option contains an 'A' then everything is printed.
288 // If the option contains the string "FMD" the function will search
289 // for detector, ring, sector, and strip numbers to print, in the
292 // FMD<detector><ring>[<sector>,<string>]
294 // The wild card '*' means all of <detector>, <ring>, <sector>, or
297 Bool_t showStrips = opt.Contains("a", TString::kIgnoreCase);
298 UShort_t ds[] = { 1, 2, 3, 0 };
299 Char_t rs[] = { 'I', 'O', '\0' };
300 UShort_t minStrip = 0;
301 UShort_t maxStrip = 512;
302 UShort_t minSector = 0;
303 UShort_t maxSector = 40;
306 if (opt.Contains("fmd",TString::kIgnoreCase)) {
308 size_t i = opt.Index("fmd",TString::kIgnoreCase);
309 size_t j = opt.Index("]",TString::kIgnoreCase);
320 std::stringstream s(opt(i+4, j-i-3).Data());
321 while (state != kEnd) {
322 Char_t tmp = s.peek();
323 if (tmp == ' ' || tmp == '\t') {
328 case kReadDet: { // First, try to kRead the detector
329 if (tmp == '*') s.get();
338 state = (s.bad() ? kEnd : kReadRing);
340 case kReadRing: { // Then try to read the ring;
343 if (ring != '*' && !s.bad()) {
347 state = (s.bad() ? kEnd : kReadLbrack);
349 case kReadLbrack: { // Try to read a left bracket
352 state = (s.bad() ? kEnd : kReadSector);
354 case kReadSector: { // Try to read a sector
355 if (tmp == '*') s.get();
364 state = (s.bad() ? kEnd : kReadComma);
366 case kReadComma: { // Try to read a left bracket
369 state = (s.bad() ? kEnd : kReadStrip);
371 case kReadStrip: { // Try to read a strip
372 if (tmp == '*') s.get();
381 state = (s.bad() ? kEnd : kReadRbrack);
383 case kReadRbrack: { // Try to read a left bracket
395 while ((det = *(dp++))) {
399 while ((ring = *(rp++))) {
400 if (det == 1 && ring == 'O') continue;
401 UShort_t min = GetMinStrip(det, ring, 0, 0);
402 UShort_t max = GetMaxStrip(det, ring, 0, 0);
403 UShort_t rate = GetSampleRate(det, ring, 0, 0);
404 std::cout << "FMD" << det << ring
406 << std::setw(3) << min << ","
407 << std::setw(3) << max << " Rate: "
408 << std::setw(2) << rate << std::endl;
410 if (!showStrips) continue;
411 UShort_t nSec = ( ring == 'I' ? 20 : 40 );
412 UShort_t nStr = ( ring == 'I' ? 512 : 256 );
413 for (UShort_t sec = minSector; sec < maxSector && sec < nSec; sec++) {
415 << " Strip | Pedestal | Gain | ZS thr. | Address\n"
416 << "--------+-------------------+------------+---------+---------"
418 for (UShort_t str = minStrip; str < nStr && str < maxStrip; str++) {
419 if (str == minStrip) std::cout << std::setw(3) << sec << ",";
420 else std::cout << " ";
421 std::cout << std::setw(3) << str << " | ";
422 if (IsDead(det, ring, sec, str)) {
423 std::cout << "dead" << std::endl;
427 Detector2Hardware(det, ring, sec, str, ddl, addr);
428 std::cout << std::setw(7) << GetPedestal(det, ring, sec, str)
429 << "+/-" << std::setw(7)
430 << GetPedestalWidth(det, ring, sec, str)
431 << " | " << std::setw(10)
432 << GetPulseGain(det, ring, sec, str)
433 << " | " << std::setw(7)
434 << GetZeroSuppression(det, ring, sec, str)
435 << " | 0x" << std::hex << std::setw(4)
436 << std::setfill('0') << ddl << ",0x" << std::setw(3)
437 << addr << std::dec << std::setfill(' ') << std::endl;
441 << "============================================================="
448 //__________________________________________________________________
450 AliFMDParameters::SetStripRange(UShort_t min, UShort_t max)
452 // Set fixed strip range
453 fFixedMinStrip = min;
454 fFixedMaxStrip = max;
457 //__________________________________________________________________
459 AliFMDParameters::GetEntry(const char* path, AliFMDPreprocessor* pp,
462 // Get an entry from the CDB or via preprocessor
463 AliCDBEntry* entry = 0;
465 AliCDBManager* cdb = AliCDBManager::Instance();
466 entry = cdb->Get(path);
469 const char* third = gSystem->BaseName(path);
470 const char* second = gSystem->BaseName(gSystem->DirName(path));
471 entry = pp->GetFromCDB(second, third);
474 TString msg(Form("No %s found in CDB, perhaps you need to "
475 "use AliFMDCalibFaker?", path));
476 if (fatal) { AliFatal(msg.Data()); }
477 else AliLog::Message(AliLog::kWarning, msg.Data(), "FMD",
478 "AliFMDParameters", "GetEntry", __FILE__,
486 //__________________________________________________________________
488 AliFMDParameters::InitPulseGain(AliFMDPreprocessor* pp)
490 // Get pulse gain from CDB or used fixed
491 AliCDBEntry* gain = GetEntry(fgkPulseGain, pp);
494 AliFMDDebug(1, ("Got gain from CDB"));
495 fPulseGain = dynamic_cast<AliFMDCalibGain*>(gain->GetObject());
496 if (!fPulseGain) AliFatal("Invalid pulser gain object from CDB");
498 //__________________________________________________________________
500 AliFMDParameters::InitPedestal(AliFMDPreprocessor* pp)
502 // Initialize the pedestals from CDB
503 AliCDBEntry* pedestal = GetEntry(fgkPedestal, pp);
504 if (!pedestal) return;
506 AliFMDDebug(1, ("Got pedestal from CDB"));
507 fPedestal = dynamic_cast<AliFMDCalibPedestal*>(pedestal->GetObject());
508 if (!fPedestal) AliFatal("Invalid pedestal object from CDB");
511 //__________________________________________________________________
513 AliFMDParameters::InitDeadMap(AliFMDPreprocessor* pp)
515 // Get Dead-channel-map from CDB
516 AliCDBEntry* deadMap = GetEntry(fgkDead, pp);
517 if (!deadMap) return;
519 AliFMDDebug(1, ("Got dead map from CDB"));
520 fDeadMap = dynamic_cast<AliFMDCalibDeadMap*>(deadMap->GetObject());
521 if (!fDeadMap) AliFatal("Invalid dead map object from CDB");
524 //__________________________________________________________________
526 AliFMDParameters::InitZeroSuppression(AliFMDPreprocessor* pp)
528 // Get 0-suppression from CDB
529 AliCDBEntry* zeroSup = GetEntry(fgkZeroSuppression, pp);
530 if (!zeroSup) return;
531 AliFMDDebug(1, ("Got zero suppression from CDB"));
533 dynamic_cast<AliFMDCalibZeroSuppression*>(zeroSup->GetObject());
534 if (!fZeroSuppression)AliFatal("Invalid zero suppression object from CDB");
537 //__________________________________________________________________
539 AliFMDParameters::InitSampleRate(AliFMDPreprocessor* pp)
541 // get Sample rate from CDB
542 AliCDBEntry* sampRat = GetEntry(fgkSampleRate, pp);
543 if (!sampRat) return;
544 AliFMDDebug(1, ("Got zero suppression from CDB"));
545 fSampleRate = dynamic_cast<AliFMDCalibSampleRate*>(sampRat->GetObject());
546 if (!fSampleRate) AliFatal("Invalid zero suppression object from CDB");
549 //__________________________________________________________________
551 AliFMDParameters::InitAltroMap(AliFMDPreprocessor* pp)
553 // Get hardware mapping from CDB
554 AliCDBEntry* hwMap = GetEntry(fgkAltroMap, pp);
557 AliFMDDebug(1, ("Got ALTRO map from CDB"));
558 fAltroMap = dynamic_cast<AliFMDAltroMapping*>(hwMap->GetObject());
560 AliFatal("Invalid ALTRO map object from CDB");
561 fAltroMap = new AliFMDAltroMapping;
565 //__________________________________________________________________
567 AliFMDParameters::InitStripRange(AliFMDPreprocessor* pp)
569 // Get strips read-out from CDB
570 AliCDBEntry* range = GetEntry(fgkStripRange, pp);
572 AliFMDDebug(1, ("Got strip range from CDB"));
573 fStripRange = dynamic_cast<AliFMDCalibStripRange*>(range->GetObject());
574 if (!fStripRange) AliFatal("Invalid strip range object from CDB");
578 //__________________________________________________________________
580 AliFMDParameters::GetThreshold() const
582 // Get threshold from CDB
583 if (!fPulseGain) return fFixedThreshold;
584 return fPulseGain->Threshold();
587 //__________________________________________________________________
589 AliFMDParameters::GetPulseGain(UShort_t detector, Char_t ring,
590 UShort_t sector, UShort_t strip) const
592 // Returns the pulser calibrated gain for strip # strip in sector #
593 // sector or ring id ring of detector # detector.
595 // For simulation, this is normally set to
598 // ------------------ * MIP_Energy_Loss
599 // ALTRO_channel_size
602 if (fFixedPulseGain <= 0)
603 fFixedPulseGain = fVA1MipRange * GetEdepMip() / fAltroChannelSize;
604 return fFixedPulseGain;
606 AliFMDDebug(50, ("pulse gain for FMD%d%c[%2d,%3d]=%f",
607 detector, ring, sector, strip,
608 fPulseGain->Value(detector, ring, sector, strip)));
609 return fPulseGain->Value(detector, ring, sector, strip);
612 //__________________________________________________________________
614 AliFMDParameters::IsDead(UShort_t detector, Char_t ring,
615 UShort_t sector, UShort_t strip) const
617 // Check if the channel is dead
618 if (!fDeadMap) return kFALSE;
619 AliFMDDebug(50, ("Dead for FMD%d%c[%2d,%3d]=%s",
620 detector, ring, sector, strip,
621 fDeadMap->operator()(detector, ring, sector, strip) ?
623 return fDeadMap->operator()(detector, ring, sector, strip);
626 //__________________________________________________________________
628 AliFMDParameters::GetZeroSuppression(UShort_t detector, Char_t ring,
629 UShort_t sector, UShort_t strip) const
631 // Get zero suppression threshold
632 if (!fZeroSuppression) return fFixedZeroSuppression;
633 // Need to map strip to ALTRO chip.
634 AliFMDDebug(50, ("zero sup. for FMD%d%c[%2d,%3d]=%f",
635 detector, ring, sector, strip,
636 fZeroSuppression->operator()(detector, ring,
638 return fZeroSuppression->operator()(detector, ring, sector, strip/128);
641 //__________________________________________________________________
643 AliFMDParameters::GetSampleRate(UShort_t det, Char_t ring, UShort_t sector,
647 if (!fSampleRate) return fFixedSampleRate;
648 // Need to map sector to digitizier card.
649 UInt_t ret = fSampleRate->Rate(det, ring, sector, str);
650 AliFMDDebug(50, ("Sample rate for FMD%d%c[%2d,%3d]=%d",
651 det, ring, sector, str, ret));
655 //__________________________________________________________________
657 AliFMDParameters::GetMinStrip(UShort_t det, Char_t ring, UShort_t sector,
660 // Get strip range read out
661 if (!fStripRange) return fFixedMinStrip;
662 // Need to map sector to digitizier card.
663 UInt_t ret = fStripRange->Min(det, ring, sector, str);
664 AliFMDDebug(50, ("Min strip # for FMD%d%c[%2d,%3d]=%d",
665 det, ring, sector, str, ret));
669 //__________________________________________________________________
671 AliFMDParameters::GetMaxStrip(UShort_t det, Char_t ring, UShort_t sector,
674 // Get strip range read out
675 if (!fStripRange) return fFixedMaxStrip;
676 // Need to map sector to digitizier card.
677 UInt_t ret = fStripRange->Max(det, ring, sector, str);
678 AliFMDDebug(50, ("Max strip # for FMD%d%c[%2d,%3d]=%d",
679 det, ring, sector, str, ret));
683 //__________________________________________________________________
685 AliFMDParameters::GetPedestal(UShort_t detector, Char_t ring,
686 UShort_t sector, UShort_t strip) const
689 if (!fPedestal) return fFixedPedestal;
690 AliFMDDebug(50, ("pedestal for FMD%d%c[%2d,%3d]=%f",
691 detector, ring, sector, strip,
692 fPedestal->Value(detector, ring, sector, strip)));
693 return fPedestal->Value(detector, ring, sector, strip);
696 //__________________________________________________________________
698 AliFMDParameters::GetPedestalWidth(UShort_t detector, Char_t ring,
699 UShort_t sector, UShort_t strip) const
702 if (!fPedestal) return fFixedPedestalWidth;
703 AliFMDDebug(50, ("pedetal width for FMD%d%c[%2d,%3d]=%f",
704 detector, ring, sector, strip,
705 fPedestal->Width(detector, ring, sector, strip)));
706 return fPedestal->Width(detector, ring, sector, strip);
709 //__________________________________________________________________
711 AliFMDParameters::GetAltroMap() const
713 // Get the hardware address to detector index map
718 //__________________________________________________________________
720 AliFMDParameters::Hardware2Detector(UInt_t ddl, UInt_t board,
721 UInt_t chip, UInt_t chan,
722 UShort_t& det, Char_t& ring,
723 UShort_t& sec, UShort_t& str) const
725 // Map hardware address to detector index
726 if (!fAltroMap) return kFALSE;
727 return fAltroMap->Hardware2Detector(ddl,board,chip,chan, det,ring,sec,str);
729 //__________________________________________________________________
731 AliFMDParameters::Hardware2Detector(UInt_t ddl, UInt_t addr,
732 UShort_t& det, Char_t& ring,
733 UShort_t& sec, UShort_t& str) const
735 // Map hardware address to detector index
736 if (!fAltroMap) return kFALSE;
737 return fAltroMap->Hardware2Detector(ddl, addr, det, ring, sec, str);
740 //__________________________________________________________________
742 AliFMDParameters::Detector2Hardware(UShort_t det, Char_t ring,
743 UShort_t sec, UShort_t str,
744 UInt_t& ddl, UInt_t& board,
745 UInt_t& chip, UInt_t& chan) const
747 // Map detector index to hardware address
748 if (!fAltroMap) return kFALSE;
749 return fAltroMap->Detector2Hardware(det,ring,sec,str, ddl,board,chip,chan);
752 //__________________________________________________________________
754 AliFMDParameters::Detector2Hardware(UShort_t det, Char_t ring,
755 UShort_t sec, UShort_t str,
756 UInt_t& ddl, UInt_t& addr) const
758 // Map detector index to hardware address
759 if (!fAltroMap) return kFALSE;
760 return fAltroMap->Detector2Hardware(det, ring, sec, str, ddl, addr);
764 //__________________________________________________________________
766 AliFMDParameters::GetEdepMip() const
768 // Get energy deposited by a MIP in the silicon sensors
770 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
771 fEdepMip = (fkSiDeDxMip
772 * fmd->GetRing('I')->GetSiThickness()
773 * fmd->GetSiDensity());
782 //____________________________________________________________________