* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.26 2001/11/06 17:19:41 cblume
-Add detailed geometry and simple simulator
-
-Revision 1.25 2001/06/27 09:54:44 cblume
-Moved fField initialization to InitDetector()
-
-Revision 1.24 2001/05/21 16:45:47 hristov
-Last minute changes (C.Blume)
-
-Revision 1.23 2001/05/07 08:04:48 cblume
-New TRF and PRF. Speedup of the code. Digits from amplification region included
-
-Revision 1.22 2001/03/30 14:40:14 cblume
-Update of the digitization parameter
-
-Revision 1.21 2001/03/13 09:30:35 cblume
-Update of digitization. Moved digit branch definition to AliTRD
-
-Revision 1.20 2001/02/25 20:19:00 hristov
-Minor correction: loop variable declared only once for HP, Sun
-
-Revision 1.19 2001/02/14 18:22:26 cblume
-Change in the geometry of the padplane
-
-Revision 1.18 2001/01/26 19:56:57 hristov
-Major upgrade of AliRoot code
-
-Revision 1.17 2000/12/08 12:53:27 cblume
-Change in Copy() function for HP-compiler
-
-Revision 1.16 2000/12/07 12:20:46 cblume
-Go back to array compression. Use sampled PRF to speed up digitization
-
-Revision 1.15 2000/11/23 14:34:08 cblume
-Fixed bug in expansion routine of arrays (initialize buffers properly)
-
-Revision 1.14 2000/11/20 08:54:44 cblume
-Switch off compression as default
-
-Revision 1.13 2000/11/10 14:57:52 cblume
-Changes in the geometry constants for the DEC compiler
-
-Revision 1.12 2000/11/01 14:53:20 cblume
-Merge with TRD-develop
-
-Revision 1.1.4.9 2000/10/26 17:00:22 cblume
-Fixed bug in CheckDetector()
-
-Revision 1.1.4.8 2000/10/23 13:41:35 cblume
-Added protection against Log(0) in the gas gain calulation
-
-Revision 1.1.4.7 2000/10/17 02:27:34 cblume
-Get rid of global constants
-
-Revision 1.1.4.6 2000/10/16 01:16:53 cblume
-Changed timebin 0 to be the one closest to the readout
-
-Revision 1.1.4.5 2000/10/15 23:34:29 cblume
-Faster version of the digitizer
-
-Revision 1.1.4.4 2000/10/06 16:49:46 cblume
-Made Getters const
-
-Revision 1.1.4.3 2000/10/04 16:34:58 cblume
-Replace include files by forward declarations
-
-Revision 1.1.4.2 2000/09/22 14:41:10 cblume
-Bug fix in PRF. Included time response. New structure
-
-Revision 1.10 2000/10/05 07:27:53 cblume
-Changes in the header-files by FCA
-
-Revision 1.9 2000/10/02 21:28:19 fca
-Removal of useless dependecies via forward declarations
-
-Revision 1.8 2000/06/09 11:10:07 cblume
-Compiler warnings and coding conventions, next round
-
-Revision 1.7 2000/06/08 18:32:58 cblume
-Make code compliant to coding conventions
-
-Revision 1.6 2000/06/07 16:27:32 cblume
-Try to remove compiler warnings on Sun and HP
-
-Revision 1.5 2000/05/09 16:38:57 cblume
-Removed PadResponse(). Merge problem
-
-Revision 1.4 2000/05/08 15:53:45 cblume
-Resolved merge conflict
-
-Revision 1.3 2000/04/28 14:49:27 cblume
-Only one declaration of iDict in MakeDigits()
-
-Revision 1.1.4.1 2000/05/08 14:42:04 cblume
-Introduced AliTRDdigitsManager
-
-Revision 1.1 2000/02/28 19:00:13 cblume
-Add new TRD classes
-
-*/
-
-///////////////////////////////////////////////////////////////////////////////
-// //
-// Creates and handles digits from TRD hits //
-// Author: C. Blume (C.Blume@gsi.de) //
-// //
-// The following effects are included: //
-// - Diffusion //
-// - ExB effects //
-// - Gas gain including fluctuations //
-// - Pad-response (simple Gaussian approximation) //
-// - Time-response //
-// - Electronics noise //
-// - Electronics gain //
-// - Digitization //
-// - ADC threshold //
-// The corresponding parameter can be adjusted via the various //
-// Set-functions. If these parameters are not explicitly set, default //
-// values are used (see Init-function). //
-// As an example on how to use this class to produce digits from hits //
-// have a look at the macro hits2digits.C //
-// The production of summable digits is demonstrated in hits2sdigits.C //
-// and the subsequent conversion of the s-digits into normal digits is //
-// explained in sdigits2digits.C. //
-// //
-///////////////////////////////////////////////////////////////////////////////
-
-#include <stdlib.h>
+/* $Id$ */
+
+////////////////////////////////////////////////////////////////////////////
+// //
+// Creates and handles digits from TRD hits //
+// //
+// Authors: C. Blume (blume@ikf.uni-frankfurt.de) //
+// C. Lippmann //
+// B. Vulpescu //
+// //
+// The following effects are included: //
+// - Diffusion //
+// - ExB effects //
+// - Gas gain including fluctuations //
+// - Pad-response (simple Gaussian approximation) //
+// - Time-response //
+// - Electronics noise //
+// - Electronics gain //
+// - Digitization //
+// - Zero suppression //
+// //
+////////////////////////////////////////////////////////////////////////////
+#include <TF1.h>
+#include <TFile.h>
+#include <TGeoGlobalMagField.h>
+#include <TGeoManager.h>
+#include <TList.h>
#include <TMath.h>
-#include <TVector.h>
-#include <TRandom.h>
#include <TROOT.h>
+#include <TRandom.h>
+#include <TTask.h>
#include <TTree.h>
-#include <TFile.h>
-#include <TF1.h>
-#include <TList.h>
+#include <TVector.h>
#include "AliRun.h"
+#include "AliMC.h"
+#include "AliRunLoader.h"
+#include "AliLoader.h"
+#include "AliConfig.h"
#include "AliMagF.h"
-
+#include "AliRunDigitizer.h"
+#include "AliRunLoader.h"
+#include "AliLoader.h"
+#include "AliLog.h"
#include "AliTRD.h"
#include "AliTRDhit.h"
#include "AliTRDdigitizer.h"
-#include "AliTRDdataArrayI.h"
-#include "AliTRDdataArrayF.h"
-#include "AliTRDsegmentArray.h"
+
+#include "AliTRDarrayDictionary.h"
+#include "AliTRDarrayADC.h"
+#include "AliTRDarraySignal.h"
#include "AliTRDdigitsManager.h"
#include "AliTRDgeometry.h"
+#include "AliTRDpadPlane.h"
+#include "AliTRDcalibDB.h"
+#include "AliTRDSimParam.h"
+#include "AliTRDCommonParam.h"
+#include "AliTRDfeeParam.h"
+#include "AliTRDmcmSim.h"
+#include "Cal/AliTRDCalROC.h"
+#include "Cal/AliTRDCalDet.h"
ClassImp(AliTRDdigitizer)
//_____________________________________________________________________________
-AliTRDdigitizer::AliTRDdigitizer():TNamed()
+AliTRDdigitizer::AliTRDdigitizer()
+ :AliDigitizer()
+ ,fRunLoader(0)
+ ,fDigitsManager(0)
+ ,fSDigitsManager(0)
+ ,fSDigitsManagerList(0)
+ ,fTRD(0)
+ ,fGeo(0)
+ ,fEvent(0)
+ ,fMasks(0)
+ ,fCompress(kTRUE)
+ ,fSDigits(kFALSE)
+ ,fMergeSignalOnly(kFALSE)
{
//
// AliTRDdigitizer default constructor
//
+
+ Init();
- fInputFile = NULL;
- fDigitsManager = NULL;
- fSDigitsManagerList = NULL;
- fSDigitsManager = NULL;
- fTRD = NULL;
- fGeo = NULL;
- fPRFsmp = NULL;
- fTRFsmp = NULL;
+}
- fEvent = 0;
- fGasGain = 0.0;
- fNoise = 0.0;
- fChipGain = 0.0;
- fADCoutRange = 0.0;
- fADCinRange = 0.0;
- fADCthreshold = 0;
- fDiffusionOn = 0;
- fDiffusionT = 0.0;
- fDiffusionL = 0.0;
- fElAttachOn = 0;
- fElAttachProp = 0.0;
- fExBOn = 0;
- fOmegaTau = 0.0;
- fPRFOn = 0;
- fTRFOn = 0;
- fDriftVelocity = 0.0;
- fPadCoupling = 0.0;
- fTimeCoupling = 0.0;
- fTimeBinWidth = 0.0;
- fField = 0.0;
-
- fPRFbin = 0;
- fPRFlo = 0.0;
- fPRFhi = 0.0;
- fPRFwid = 0.0;
- fPRFpad = 0;
- fTRFbin = 0;
- fTRFlo = 0.0;
- fTRFhi = 0.0;
- fTRFwid = 0.0;
+//_____________________________________________________________________________
+AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
+ :AliDigitizer(name,title)
+ ,fRunLoader(0)
+ ,fDigitsManager(0)
+ ,fSDigitsManager(0)
+ ,fSDigitsManagerList(0)
+ ,fTRD(0)
+ ,fGeo(0)
+ ,fEvent(0)
+ ,fMasks(0)
+ ,fCompress(kTRUE)
+ ,fSDigits(kFALSE)
+ ,fMergeSignalOnly(kFALSE)
+{
+ //
+ // AliTRDdigitizer constructor
+ //
- fCompress = kTRUE;
- fVerbose = 0;
- fSDigits = kFALSE;
- fSDigitsScale = 0.0;
+ Init();
}
//_____________________________________________________________________________
-AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
- :TNamed(name,title)
+AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager
+ , const Text_t *name, const Text_t *title)
+ :AliDigitizer(manager,name,title)
+ ,fRunLoader(0)
+ ,fDigitsManager(0)
+ ,fSDigitsManager(0)
+ ,fSDigitsManagerList(0)
+ ,fTRD(0)
+ ,fGeo(0)
+ ,fEvent(0)
+ ,fMasks(0)
+ ,fCompress(kTRUE)
+ ,fSDigits(kFALSE)
+ ,fMergeSignalOnly(kFALSE)
{
//
- // AliTRDdigitizer default constructor
+ // AliTRDdigitizer constructor
+ //
+
+ Init();
+
+}
+
+//_____________________________________________________________________________
+AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager)
+ :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer")
+ ,fRunLoader(0)
+ ,fDigitsManager(0)
+ ,fSDigitsManager(0)
+ ,fSDigitsManagerList(0)
+ ,fTRD(0)
+ ,fGeo(0)
+ ,fEvent(0)
+ ,fMasks(0)
+ ,fCompress(kTRUE)
+ ,fSDigits(kFALSE)
+ ,fMergeSignalOnly(kFALSE)
+{
+ //
+ // AliTRDdigitizer constructor
//
- fInputFile = NULL;
+ Init();
+
+}
- fDigitsManager = NULL;
- fSDigitsManager = NULL;
- fSDigitsManagerList = NULL;
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::Init()
+{
+ //
+ // Initialize the digitizer with default values
+ //
- fTRD = NULL;
- fGeo = NULL;
- fPRFsmp = NULL;
- fTRFsmp = NULL;
+ fRunLoader = 0;
+ fDigitsManager = 0;
+ fSDigitsManager = 0;
+ fSDigitsManagerList = 0;
+ fTRD = 0;
+ fGeo = 0;
fEvent = 0;
-
+ fMasks = 0;
fCompress = kTRUE;
- fVerbose = 0;
fSDigits = kFALSE;
-
- Init();
+ fMergeSignalOnly = kFALSE;
+
+ return AliDigitizer::Init();
}
//_____________________________________________________________________________
AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d)
+ :AliDigitizer(d)
+ ,fRunLoader(0)
+ ,fDigitsManager(0)
+ ,fSDigitsManager(0)
+ ,fSDigitsManagerList(0)
+ ,fTRD(0)
+ ,fGeo(0)
+ ,fEvent(0)
+ ,fMasks(0)
+ ,fCompress(d.fCompress)
+ ,fSDigits(d.fSDigits)
+ ,fMergeSignalOnly(d.fMergeSignalOnly)
{
//
// AliTRDdigitizer copy constructor
//
- ((AliTRDdigitizer &) d).Copy(*this);
-
}
//_____________________________________________________________________________
// AliTRDdigitizer destructor
//
- if (fInputFile) {
- fInputFile->Close();
- delete fInputFile;
- fInputFile = NULL;
- }
-
if (fDigitsManager) {
delete fDigitsManager;
- fDigitsManager = NULL;
+ fDigitsManager = 0;
}
- if (fSDigitsManager) {
+ if (fDigitsManager) { //typo? fSDigitsManager?
delete fSDigitsManager;
- fSDigitsManager = NULL;
+ fSDigitsManager = 0;
}
if (fSDigitsManagerList) {
fSDigitsManagerList->Delete();
delete fSDigitsManagerList;
- fSDigitsManagerList = NULL;
+ fSDigitsManagerList = 0;
+ }
+
+ if (fMasks) {
+ delete [] fMasks;
+ fMasks = 0;
}
+
+ if (fGeo) {
+ delete fGeo;
+ fGeo = 0;
+ }
+
}
//_____________________________________________________________________________
// Assignment operator
//
- if (this != &d) ((AliTRDdigitizer &) d).Copy(*this);
+ if (this != &d) {
+ ((AliTRDdigitizer &) d).Copy(*this);
+ }
+
return *this;
}
//_____________________________________________________________________________
-void AliTRDdigitizer::Copy(TObject &d)
+void AliTRDdigitizer::Copy(TObject &d) const
{
//
// Copy function
//
- Int_t iBin;
-
- ((AliTRDdigitizer &) d).fInputFile = NULL;
- ((AliTRDdigitizer &) d).fSDigitsManagerList = NULL;
- ((AliTRDdigitizer &) d).fSDigitsManager = NULL;
- ((AliTRDdigitizer &) d).fDigitsManager = NULL;
- ((AliTRDdigitizer &) d).fTRD = NULL;
- ((AliTRDdigitizer &) d).fGeo = NULL;
-
+ ((AliTRDdigitizer &) d).fRunLoader = 0;
+ ((AliTRDdigitizer &) d).fDigitsManager = 0;
+ ((AliTRDdigitizer &) d).fSDigitsManager = 0;
+ ((AliTRDdigitizer &) d).fSDigitsManagerList = 0;
+ ((AliTRDdigitizer &) d).fTRD = 0;
+ ((AliTRDdigitizer &) d).fGeo = 0;
((AliTRDdigitizer &) d).fEvent = 0;
-
- ((AliTRDdigitizer &) d).fGasGain = fGasGain;
- ((AliTRDdigitizer &) d).fNoise = fNoise;
- ((AliTRDdigitizer &) d).fChipGain = fChipGain;
- ((AliTRDdigitizer &) d).fADCoutRange = fADCoutRange;
- ((AliTRDdigitizer &) d).fADCinRange = fADCinRange;
- ((AliTRDdigitizer &) d).fADCthreshold = fADCthreshold;
- ((AliTRDdigitizer &) d).fDiffusionOn = fDiffusionOn;
- ((AliTRDdigitizer &) d).fDiffusionT = fDiffusionT;
- ((AliTRDdigitizer &) d).fDiffusionL = fDiffusionL;
- ((AliTRDdigitizer &) d).fElAttachOn = fElAttachOn;
- ((AliTRDdigitizer &) d).fElAttachProp = fElAttachProp;
- ((AliTRDdigitizer &) d).fExBOn = fExBOn;
- ((AliTRDdigitizer &) d).fOmegaTau = fOmegaTau;
- ((AliTRDdigitizer &) d).fLorentzFactor = fLorentzFactor;
- ((AliTRDdigitizer &) d).fDriftVelocity = fDriftVelocity;
- ((AliTRDdigitizer &) d).fPadCoupling = fPadCoupling;
- ((AliTRDdigitizer &) d).fTimeCoupling = fTimeCoupling;
- ((AliTRDdigitizer &) d).fTimeBinWidth = fTimeBinWidth;
- ((AliTRDdigitizer &) d).fField = fField;
- ((AliTRDdigitizer &) d).fPRFOn = fPRFOn;
- ((AliTRDdigitizer &) d).fTRFOn = fTRFOn;
-
+ ((AliTRDdigitizer &) d).fMasks = 0;
((AliTRDdigitizer &) d).fCompress = fCompress;
- ((AliTRDdigitizer &) d).fVerbose = fVerbose;
((AliTRDdigitizer &) d).fSDigits = fSDigits;
- ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
-
- ((AliTRDdigitizer &) d).fPRFbin = fPRFbin;
- ((AliTRDdigitizer &) d).fPRFlo = fPRFlo;
- ((AliTRDdigitizer &) d).fPRFhi = fPRFhi;
- ((AliTRDdigitizer &) d).fPRFwid = fPRFwid;
- ((AliTRDdigitizer &) d).fPRFpad = fPRFpad;
- if (((AliTRDdigitizer &) d).fPRFsmp) delete ((AliTRDdigitizer &) d).fPRFsmp;
- ((AliTRDdigitizer &) d).fPRFsmp = new Float_t[fPRFbin];
- for (iBin = 0; iBin < fPRFbin; iBin++) {
- ((AliTRDdigitizer &) d).fPRFsmp[iBin] = fPRFsmp[iBin];
- }
- ((AliTRDdigitizer &) d).fTRFbin = fTRFbin;
- ((AliTRDdigitizer &) d).fTRFlo = fTRFlo;
- ((AliTRDdigitizer &) d).fTRFhi = fTRFhi;
- ((AliTRDdigitizer &) d).fTRFwid = fTRFwid;
- if (((AliTRDdigitizer &) d).fTRFsmp) delete ((AliTRDdigitizer &) d).fTRFsmp;
- ((AliTRDdigitizer &) d).fTRFsmp = new Float_t[fTRFbin];
- for (iBin = 0; iBin < fTRFbin; iBin++) {
- ((AliTRDdigitizer &) d).fTRFsmp[iBin] = fTRFsmp[iBin];
- }
-
-}
-
-//_____________________________________________________________________________
-Int_t AliTRDdigitizer::Diffusion(Float_t driftlength, Float_t *xyz)
-{
- //
- // Applies the diffusion smearing to the position of a single electron
- //
-
- Float_t driftSqrt = TMath::Sqrt(driftlength);
- Float_t sigmaT = driftSqrt * fDiffusionT;
- Float_t sigmaL = driftSqrt * fDiffusionL;
- xyz[0] = gRandom->Gaus(xyz[0], sigmaL * fLorentzFactor);
- xyz[1] = gRandom->Gaus(xyz[1], sigmaT * fLorentzFactor);
- xyz[2] = gRandom->Gaus(xyz[2], sigmaT);
-
- return 1;
-
-}
-
-//_____________________________________________________________________________
-Int_t AliTRDdigitizer::ExB(Float_t driftlength, Float_t *xyz)
-{
- //
- // Applies E x B effects to the position of a single electron
- //
-
- xyz[0] = xyz[0];
- xyz[1] = xyz[1] + fOmegaTau * driftlength;
- xyz[2] = xyz[2];
-
- return 1;
+ ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
}
//_____________________________________________________________________________
-Int_t AliTRDdigitizer::PadResponse(Float_t signal, Float_t dist, Float_t *pad)
+void AliTRDdigitizer::Exec(Option_t *option)
{
//
- // Applies the pad response
+ // Executes the merging
//
- Int_t iBin = ((Int_t) (( - dist - fPRFlo) / fPRFwid));
+ Int_t iInput;
- Int_t iBin0 = iBin - fPRFpad;
- Int_t iBin1 = iBin;
- Int_t iBin2 = iBin + fPRFpad;
+ AliTRDdigitsManager *sdigitsManager;
- if ((iBin0 >= 0) && (iBin2 < fPRFbin)) {
-
- pad[0] = signal * fPRFsmp[iBin0];
- pad[1] = signal * fPRFsmp[iBin1];
- pad[2] = signal * fPRFsmp[iBin2];
-
- return 1;
+ TString optionString = option;
+ if (optionString.Contains("deb")) {
+ AliLog::SetClassDebugLevel("AliTRDdigitizer",1);
+ AliInfo("Called with debug option");
+ }
+ // The AliRoot file is already connected by the manager
+ AliRunLoader *inrl = 0x0;
+
+ if (gAlice) {
+ AliDebug(1,"AliRun object found on file.");
}
else {
-
- return 0;
-
+ inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
+ inrl->LoadgAlice();
+ gAlice = inrl->GetAliRun();
+ if (!gAlice) {
+ AliError("Could not find AliRun object.")
+ return;
+ }
}
-
-}
-
-//_____________________________________________________________________________
-Float_t AliTRDdigitizer::TimeResponse(Float_t time)
-{
- //
- // Applies the preamp shaper time response
- //
-
- Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid));
- if ((iBin >= 0) && (iBin < fTRFbin)) {
- return fTRFsmp[iBin];
+
+ Int_t nInput = fManager->GetNinputs();
+ fMasks = new Int_t[nInput];
+ for (iInput = 0; iInput < nInput; iInput++) {
+ fMasks[iInput] = fManager->GetMask(iInput);
}
- else {
- return 0.0;
- }
-
-}
-//_____________________________________________________________________________
-void AliTRDdigitizer::Init()
-{
//
- // Initializes the digitization procedure with standard values
+ // Initialization
//
- // The default parameter for the digitization
- fGasGain = 2800.;
- fChipGain = 6.1;
- fNoise = 1000.;
- fADCoutRange = 1023.; // 10-bit ADC
- fADCinRange = 1000.; // 1V input range
- fADCthreshold = 1;
-
- // For the summable digits
- fSDigitsScale = 100.;
+ AliRunLoader *orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
- // The drift velocity (cm / mus)
- fDriftVelocity = 1.5;
+ if (InitDetector()) {
- // Diffusion on
- fDiffusionOn = 1;
+ AliLoader *ogime = orl->GetLoader("TRDLoader");
- // E x B effects
- fExBOn = 0;
+ TTree *tree = 0;
+ if (fSDigits) {
+ // If we produce SDigits
+ tree = ogime->TreeS();
+ if (!tree) {
+ ogime->MakeTree("S");
+ tree = ogime->TreeS();
+ }
+ }
+ else {
+ // If we produce Digits
+ tree = ogime->TreeD();
+ if (!tree) {
+ ogime->MakeTree("D");
+ tree = ogime->TreeD();
+ }
+ }
- // Propability for electron attachment
- fElAttachOn = 0;
- fElAttachProp = 0.0;
+ MakeBranch(tree);
- // The pad response function
- fPRFOn = 1;
+ }
+
+ for (iInput = 0; iInput < nInput; iInput++) {
- // The time response function
- fTRFOn = 1;
+ AliDebug(1,Form("Add input stream %d",iInput));
- // The pad coupling factor (same number as for the TPC)
- fPadCoupling = 0.5;
+ // Check if the input tree exists
+ inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
+ AliLoader *gime = inrl->GetLoader("TRDLoader");
- // The time coupling factor (same number as for the TPC)
- fTimeCoupling = 0.4;
+ TTree *treees = gime->TreeS();
+ if (treees == 0x0) {
+ if (gime->LoadSDigits()) {
+ AliError(Form("Error Occured while loading S. Digits for input %d.",iInput));
+ return;
+ }
+ treees = gime->TreeS();
+ }
+
+ if (treees == 0x0) {
+ AliError(Form("Input stream %d does not exist",iInput));
+ return;
+ }
-}
+ // Read the s-digits via digits manager
+ sdigitsManager = new AliTRDdigitsManager();
+ sdigitsManager->SetSDigits(kTRUE);
+
+ AliRunLoader *rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
+ AliLoader *gimme = rl->GetLoader("TRDLoader");
+ if (!gimme->TreeS())
+ {
+ gimme->LoadSDigits();
+ }
-//_____________________________________________________________________________
-void AliTRDdigitizer::ReInit()
-{
- //
- // Reinitializes the digitization procedure after a change in the parameter
- //
+ sdigitsManager->ReadDigits(gimme->TreeS());
+
+ // Add the s-digits to the input list
+ AddSDigitsManager(sdigitsManager);
- if (!fGeo) {
- printf("AliTRDdigitizer::ReInit -- ");
- printf("No geometry defined. Run InitDetector() first\n");
- exit(1);
}
- // Calculate the time bin width in ns
- fTimeBinWidth = fGeo->GetTimeBinSize() / fDriftVelocity * 1000.0;
-
- // The range and the binwidth for the sampled TRF
- fTRFbin = 100;
- // Start 0.2 mus before the signal
- fTRFlo = -0.2 * fDriftVelocity;
- // End the maximum driftlength after the signal
- fTRFhi = AliTRDgeometry::DrThick()
- + fGeo->GetTimeAfter() * fGeo->GetTimeBinSize();
- fTRFwid = (fTRFhi - fTRFlo) / ((Float_t) fTRFbin);
+ // Convert the s-digits to normal digits
+ AliDebug(1,"Do the conversion");
+ SDigits2Digits();
- // Transverse and longitudinal diffusion coefficients (Xe/CO2)
- fDiffusionT = GetDiffusionT(fDriftVelocity,fField);
- fDiffusionL = GetDiffusionL(fDriftVelocity,fField);
-
- // omega * tau.= tan(Lorentz-angle)
- fOmegaTau = GetOmegaTau(fDriftVelocity,fField);
-
- // The Lorentz factor
- if (fExBOn) {
- fLorentzFactor = 1.0 / (1.0 + fOmegaTau*fOmegaTau);
- }
- else {
- fLorentzFactor = 1.0;
- }
+ // Store the digits
+ AliDebug(1,"Write the digits");
+ fDigitsManager->WriteDigits();
-}
+ // Write parameters
+ orl->CdGAFile();
-//_____________________________________________________________________________
-void AliTRDdigitizer::SampleTRF()
-{
- //
- // Samples the time response function
- // It is defined according to Vasiles simulation of the preamp shaper
- // output and includes the effect of the ion tail (based on Tariqs
- // Garfield simulation) and a shaping time of 125 ns FWHM
- //
-
- Int_t ipos1;
- Int_t ipos2;
- Float_t diff;
-
- const Int_t kNpasa = 200;
- Float_t time[kNpasa] = { -0.280000, -0.270000, -0.260000, -0.250000
- , -0.240000, -0.230000, -0.220000, -0.210000
- , -0.200000, -0.190000, -0.180000, -0.170000
- , -0.160000, -0.150000, -0.140000, -0.130000
- , -0.120000, -0.110000, -0.100000, -0.090000
- , -0.080000, -0.070000, -0.060000, -0.050000
- , -0.040000, -0.030000, -0.020000, -0.010000
- , -0.000000, 0.010000, 0.020000, 0.030000
- , 0.040000, 0.050000, 0.060000, 0.070000
- , 0.080000, 0.090000, 0.100000, 0.110000
- , 0.120000, 0.130000, 0.140000, 0.150000
- , 0.160000, 0.170000, 0.180000, 0.190000
- , 0.200000, 0.210000, 0.220000, 0.230000
- , 0.240000, 0.250000, 0.260000, 0.270000
- , 0.280000, 0.290000, 0.300000, 0.310000
- , 0.320000, 0.330000, 0.340000, 0.350000
- , 0.360000, 0.370000, 0.380000, 0.390000
- , 0.400000, 0.410000, 0.420000, 0.430000
- , 0.440000, 0.450000, 0.460000, 0.470000
- , 0.480000, 0.490000, 0.500000, 0.510000
- , 0.520000, 0.530000, 0.540000, 0.550000
- , 0.560000, 0.570000, 0.580000, 0.590000
- , 0.600000, 0.610000, 0.620000, 0.630000
- , 0.640000, 0.650000, 0.660000, 0.670000
- , 0.680000, 0.690000, 0.700000, 0.710000
- , 0.720000, 0.730000, 0.740000, 0.750000
- , 0.760000, 0.770000, 0.780000, 0.790000
- , 0.800000, 0.810000, 0.820000, 0.830000
- , 0.840000, 0.850000, 0.860000, 0.870000
- , 0.880000, 0.890000, 0.900000, 0.910000
- , 0.920000, 0.930000, 0.940000, 0.950000
- , 0.960000, 0.970000, 0.980000, 0.990000
- , 1.000000, 1.010000, 1.020000, 1.030000
- , 1.040000, 1.050000, 1.060000, 1.070000
- , 1.080000, 1.090000, 1.100000, 1.110000
- , 1.120000, 1.130000, 1.140000, 1.150000
- , 1.160000, 1.170000, 1.180000, 1.190000
- , 1.200000, 1.210000, 1.220000, 1.230000
- , 1.240000, 1.250000, 1.260000, 1.270000
- , 1.280000, 1.290000, 1.300000, 1.310000
- , 1.320000, 1.330000, 1.340000, 1.350000
- , 1.360000, 1.370000, 1.380000, 1.390000
- , 1.400000, 1.410000, 1.420000, 1.430000
- , 1.440000, 1.450000, 1.460000, 1.470000
- , 1.480000, 1.490000, 1.500000, 1.510000
- , 1.520000, 1.530000, 1.540000, 1.550000
- , 1.560000, 1.570000, 1.580000, 1.590000
- , 1.600000, 1.610000, 1.620000, 1.630000
- , 1.640000, 1.650000, 1.660000, 1.670000
- , 1.680000, 1.690000, 1.700000, 1.710000 };
-
- Float_t signal[kNpasa] = { 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000000
- , 0.000000, 0.000000, 0.000000, 0.000098
- , 0.003071, 0.020056, 0.066053, 0.148346
- , 0.263120, 0.398496, 0.540226, 0.674436
- , 0.790977, 0.883083, 0.947744, 0.985714
- , 0.999248, 0.992105, 0.967669, 0.930827
- , 0.884586, 0.833083, 0.778571, 0.723684
- , 0.669173, 0.617293, 0.567669, 0.521805
- , 0.479699, 0.440977, 0.405639, 0.373985
- , 0.345526, 0.320038, 0.297256, 0.276917
- , 0.258797, 0.242632, 0.228195, 0.215301
- , 0.203759, 0.193383, 0.184023, 0.175564
- , 0.167895, 0.160940, 0.154549, 0.148722
- , 0.143308, 0.138346, 0.133722, 0.129398
- , 0.125376, 0.121617, 0.118045, 0.114699
- , 0.111541, 0.108571, 0.105714, 0.103008
- , 0.100414, 0.097970, 0.095602, 0.093346
- , 0.091165, 0.089060, 0.087068, 0.085150
- , 0.083308, 0.081541, 0.079812, 0.078158
- , 0.076541, 0.075000, 0.073496, 0.072068
- , 0.070677, 0.069286, 0.068008, 0.066729
- , 0.065489, 0.064286, 0.063120, 0.061992
- , 0.060902, 0.059850, 0.058797, 0.057820
- , 0.056842, 0.055902, 0.054962, 0.054060
- , 0.053158, 0.052293, 0.051466, 0.050639
- , 0.049850, 0.049060, 0.048308, 0.047556
- , 0.046842, 0.046128, 0.045451, 0.044774
- , 0.044098, 0.043459, 0.042820, 0.042218
- , 0.041617, 0.041015, 0.040451, 0.039887
- , 0.039323, 0.038797, 0.038271, 0.037744
- , 0.037237, 0.036744, 0.036259, 0.035786
- , 0.035323, 0.034872, 0.034429, 0.033996
- , 0.033575, 0.033162, 0.032756, 0.032361
- , 0.031974, 0.031594, 0.031222, 0.030857
- , 0.030496, 0.030143, 0.029793, 0.029451
- , 0.029109, 0.028774, 0.028444, 0.028113
- , 0.027793, 0.027477, 0.027165, 0.026861
- , 0.026564, 0.026271, 0.025981, 0.025699
- , 0.025421, 0.025147, 0.024880, 0.024613
- , 0.024353, 0.024094, 0.023842, 0.023590
- , 0.023346, 0.023102, 0.022865, 0.022628
- , 0.022398, 0.022173, 0.021951, 0.021733
- , 0.021519, 0.021308, 0.021098, 0.020891
- , 0.020688, 0.020485, 0.020286, 0.020090
- , 0.019895, 0.019707, 0.019519, 0.019335
- , 0.019150, 0.018974, 0.018797, 0.018624
- , 0.018451, 0.018282, 0.018113, 0.017947
- , 0.017782, 0.017617, 0.017455, 0.017297 };
-
- if (fTRFsmp) delete fTRFsmp;
- fTRFsmp = new Float_t[fTRFbin];
-
- Float_t loTRF = TMath::Max(fTRFlo / fDriftVelocity,time[0]);
- Float_t hiTRF = TMath::Min(fTRFhi / fDriftVelocity,time[kNpasa-1]);
- Float_t binWidth = (hiTRF - loTRF) / ((Float_t) fTRFbin);
-
- // Take the linear interpolation
- for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
-
- Float_t bin = (((Float_t) iBin) + 0.5) * binWidth + loTRF;
- ipos1 = ipos2 = 0;
- diff = 0;
- do {
- diff = bin - time[ipos2++];
- } while (diff > 0);
- ipos2--;
- if (ipos2 > kNpasa) ipos2 = kNpasa - 1;
- ipos1 = ipos2 - 1;
-
- fTRFsmp[iBin] = signal[ipos2]
- + diff * (signal[ipos2] - signal[ipos1])
- / ( time[ipos2] - time[ipos1]);
+ // Clean up
+ DeleteSDigitsManager();
- }
+ AliDebug(1,"Done");
}
//_____________________________________________________________________________
-void AliTRDdigitizer::SamplePRF()
+Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
{
//
- // Samples the pad response function
+ // Opens a ROOT-file with TRD-hits and reads in the hit-tree
//
+ // Connect the AliRoot file containing Geometry, Kine, and Hits
+ //
- const Int_t kPRFbin = 61;
- Float_t prf[kPRFbin] = { 0.002340, 0.003380, 0.004900, 0.007080, 0.010220
- , 0.014740, 0.021160, 0.030230, 0.042800, 0.059830
- , 0.082030, 0.109700, 0.142550, 0.179840, 0.220610
- , 0.263980, 0.309180, 0.355610, 0.402790, 0.450350
- , 0.497930, 0.545190, 0.591740, 0.637100, 0.680610
- , 0.721430, 0.758400, 0.790090, 0.814720, 0.830480
- , 0.835930, 0.830480, 0.814710, 0.790070, 0.758390
- , 0.721410, 0.680590, 0.637080, 0.591730, 0.545180
- , 0.497920, 0.450340, 0.402790, 0.355610, 0.309190
- , 0.263990, 0.220630, 0.179850, 0.142570, 0.109720
- , 0.082040, 0.059830, 0.042820, 0.030230, 0.021170
- , 0.014740, 0.010230, 0.007080, 0.004900, 0.003380
- , 0.002340 };
+ TString evfoldname = AliConfig::GetDefaultEventFolderName();
+
+ fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
+ if (!fRunLoader) {
+ fRunLoader = AliRunLoader::Open(file,evfoldname,"UPDATE");
+ }
+ if (!fRunLoader) {
+ AliError(Form("Can not open session for file %s.",file));
+ return kFALSE;
+ }
+
+ if (!fRunLoader->GetAliRun()) {
+ fRunLoader->LoadgAlice();
+ }
+ gAlice = fRunLoader->GetAliRun();
+
+ if (gAlice) {
+ AliDebug(1,"AliRun object found on file.");
+ }
+ else {
+ AliError("Could not find AliRun object.");
+ return kFALSE;
+ }
- fPRFlo = -1.5;
- fPRFhi = 1.5;
- fPRFbin = kPRFbin;
- fPRFwid = (fPRFhi - fPRFlo) / ((Float_t) fPRFbin);
- fPRFpad = ((Int_t) (1.0 / fPRFwid));
+ fEvent = nEvent;
- if (fPRFsmp) delete fPRFsmp;
- fPRFsmp = new Float_t[fPRFbin];
- for (Int_t iBin = 0; iBin < fPRFbin; iBin++) {
- fPRFsmp[iBin] = prf[iBin];
+ AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
+ if (!loader) {
+ AliError("Can not get TRD loader from Run Loader");
+ return kFALSE;
+ }
+
+ if (InitDetector()) {
+ TTree *tree = 0;
+ if (fSDigits) {
+ // If we produce SDigits
+ tree = loader->TreeS();
+ if (!tree) {
+ loader->MakeTree("S");
+ tree = loader->TreeS();
+ }
+ }
+ else {
+ // If we produce Digits
+ tree = loader->TreeD();
+ if (!tree) {
+ loader->MakeTree("D");
+ tree = loader->TreeD();
+ }
+ }
+ return MakeBranch(tree);
+ }
+ else {
+ return kFALSE;
}
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::Open(const Char_t *name, Int_t nEvent)
+Bool_t AliTRDdigitizer::Open(AliRunLoader *runLoader, Int_t nEvent)
{
//
// Opens a ROOT-file with TRD-hits and reads in the hit-tree
//
-
// Connect the AliRoot file containing Geometry, Kine, and Hits
- fInputFile = (TFile*) gROOT->GetListOfFiles()->FindObject(name);
- if (!fInputFile) {
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::Open -- ");
- printf("Open the AliROOT-file %s.\n",name);
- }
- fInputFile = new TFile(name,"UPDATE");
+ //
+
+ fRunLoader = runLoader;
+ if (!fRunLoader) {
+ AliError("RunLoader does not exist");
+ return kFALSE;
}
- else {
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::Open -- ");
- printf("%s is already open.\n",name);
- }
+
+ if (!fRunLoader->GetAliRun()) {
+ fRunLoader->LoadgAlice();
}
-
- gAlice = (AliRun*) fInputFile->Get("gAlice");
+ gAlice = fRunLoader->GetAliRun();
+
if (gAlice) {
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::Open -- ");
- printf("AliRun object found on file.\n");
- }
+ AliDebug(1,"AliRun object found on file.");
}
else {
- printf("AliTRDdigitizer::Open -- ");
- printf("Could not find AliRun object.\n");
+ AliError("Could not find AliRun object.");
return kFALSE;
}
fEvent = nEvent;
- // Import the Trees for the event nEvent in the file
- Int_t nparticles = gAlice->GetEvent(fEvent);
- if (nparticles <= 0) {
- printf("AliTRDdigitizer::Open -- ");
- printf("No entries in the trees for event %d.\n",fEvent);
+ AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
+ if (!loader) {
+ AliError("Can not get TRD loader from Run Loader");
return kFALSE;
}
-
+
if (InitDetector()) {
- return MakeBranch();
+ TTree *tree = 0;
+ if (fSDigits) {
+ // If we produce SDigits
+ tree = loader->TreeS();
+ if (!tree) {
+ loader->MakeTree("S");
+ tree = loader->TreeS();
+ }
+ }
+ else {
+ // If we produce Digits
+ tree = loader->TreeD();
+ if (!tree) {
+ loader->MakeTree("D");
+ tree = loader->TreeD();
+ }
+ }
+ return MakeBranch(tree);
}
else {
return kFALSE;
//
// Get the pointer to the detector class and check for version 1
- fTRD = (AliTRD*) gAlice->GetDetector("TRD");
+ fTRD = (AliTRD *) gAlice->GetDetector("TRD");
+ if (!fTRD) {
+ AliFatal("No TRD module found");
+ exit(1);
+ }
if (fTRD->IsVersion() != 1) {
- printf("AliTRDdigitizer::InitDetector -- ");
- printf("TRD must be version 1 (slow simulator).\n");
+ AliFatal("TRD must be version 1 (slow simulator)");
exit(1);
}
// Get the geometry
- fGeo = fTRD->GetGeometry();
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::InitDetector -- ");
- printf("Geometry version %d\n",fGeo->IsVersion());
- }
-
- // The magnetic field strength in Tesla
- fField = 0.2 * gAlice->Field()->Factor();
+ fGeo = new AliTRDgeometry();
// Create a digits manager
+ if (fDigitsManager) {
+ delete fDigitsManager;
+ }
fDigitsManager = new AliTRDdigitsManager();
fDigitsManager->SetSDigits(fSDigits);
fDigitsManager->CreateArrays();
fDigitsManager->SetEvent(fEvent);
- fDigitsManager->SetVerbose(fVerbose);
// The list for the input s-digits manager to be merged
- fSDigitsManagerList = new TList();
-
- ReInit();
+ if (fSDigitsManagerList) {
+ fSDigitsManagerList->Delete();
+ }
+ else {
+ fSDigitsManagerList = new TList();
+ }
return kTRUE;
}
-
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::MakeBranch(const Char_t *file)
+Bool_t AliTRDdigitizer::MakeBranch(TTree *tree) const
{
//
// Create the branches for the digits array
//
- return fDigitsManager->MakeBranch(file);
+ return fDigitsManager->MakeBranch(tree);
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::MakeDigits()
+void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
{
//
- // Creates digits.
+ // Add a digits manager for s-digits to the input list.
//
- ///////////////////////////////////////////////////////////////
- // Parameter
- ///////////////////////////////////////////////////////////////
-
- // Converts number of electrons to fC
- const Double_t kEl2fC = 1.602E-19 * 1.0E15;
-
- ///////////////////////////////////////////////////////////////
+ fSDigitsManagerList->Add(man);
- // Number of pads included in the pad response
- const Int_t kNpad = 3;
+}
- // Number of track dictionary arrays
- const Int_t kNDict = AliTRDdigitsManager::kNDict;
+//_____________________________________________________________________________
+void AliTRDdigitizer::DeleteSDigitsManager()
+{
+ //
+ // Removes digits manager from the input list.
+ //
- // Half the width of the amplification region
- const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.;
-
- Int_t iRow, iCol, iTime, iPad;
- Int_t iDict = 0;
- Int_t nBytes = 0;
-
- Int_t totalSizeDigits = 0;
- Int_t totalSizeDict0 = 0;
- Int_t totalSizeDict1 = 0;
- Int_t totalSizeDict2 = 0;
-
- Int_t timeTRDbeg = 0;
- Int_t timeTRDend = 1;
-
- Float_t pos[3];
- Float_t rot[3];
- Float_t xyz[3];
- Float_t padSignal[kNpad];
- Float_t signalOld[kNpad];
-
- AliTRDdataArrayF *signals = 0;
- AliTRDdataArrayI *digits = 0;
- AliTRDdataArrayI *dictionary[kNDict];
-
- // Create a container for the amplitudes
- AliTRDsegmentArray *signalsArray
- = new AliTRDsegmentArray("AliTRDdataArrayF",AliTRDgeometry::Ndet());
-
- if (fTRFOn) {
- timeTRDbeg = ((Int_t) (-fTRFlo / fGeo->GetTimeBinSize())) - 1;
- timeTRDend = ((Int_t) ( fTRFhi / fGeo->GetTimeBinSize())) - 1;
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Sample the TRF between -%d and %d\n",timeTRDbeg,timeTRDend);
- }
- }
+ fSDigitsManagerList->Delete();
- Float_t elAttachProp = fElAttachProp / 100.;
+}
- // Create the sampled PRF
- SamplePRF();
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::MakeDigits()
+{
+ //
+ // Creates digits.
+ //
- // Create the sampled TRF
- SampleTRF();
+ AliDebug(1,"Start creating digits");
if (!fGeo) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("No geometry defined\n");
+ AliError("No geometry defined");
return kFALSE;
}
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Start creating digits.\n");
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
}
- // Get the pointer to the hit tree
- TTree *HitTree = gAlice->TreeH();
+ const Int_t kNdet = AliTRDgeometry::Ndet();
- // Get the number of entries in the hit tree
- // (Number of primary particles creating a hit somewhere)
- Int_t nTrack = (Int_t) HitTree->GetEntries();
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Found %d primary particles\n",nTrack);
- }
+ Float_t **hits = new Float_t*[kNdet];
+ Int_t *nhit = new Int_t[kNdet];
- Int_t detectorOld = -1;
- Int_t countHits = 0;
+ AliTRDarraySignal *signals = 0x0;
+
+ // Sort all hits according to detector number
+ if (!SortHits(hits,nhit)) {
+ AliError("Sorting hits failed");
+ return kFALSE;
+ }
- // Loop through all entries in the tree
- for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
+ // Loop through all detectors
+ for (Int_t det = 0; det < kNdet; det++) {
+
+ // Detectors that are switched off, not installed, etc.
+ if (( calibration->IsChamberInstalled(det)) &&
+ (!calibration->IsChamberMasked(det)) &&
+ ( fGeo->ChamberInGeometry(det)) &&
+ (nhit[det] > 0)) {
+
+ signals = new AliTRDarraySignal();
+
+ // Convert the hits of the current detector to detector signals
+ if (!ConvertHits(det,hits[det],nhit[det],signals)) {
+ AliError(Form("Conversion of hits failed for detector=%d",det));
+ return kFALSE;
+ }
+ // Convert the detector signals to digits or s-digits
+ if (!ConvertSignals(det,signals)) {
+ AliError(Form("Conversion of signals failed for detector=%d",det));
+ return kFALSE;
+ }
- gAlice->ResetHits();
- nBytes += HitTree->GetEvent(iTrack);
+ // Delete the signals array
+ delete signals;
+ signals = 0x0;
- // Get the number of hits in the TRD created by this particle
- Int_t nHit = fTRD->Hits()->GetEntriesFast();
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Found %d hits for primary particle %d\n",nHit,iTrack);
- }
+ } // if: detector status
- // Loop through the TRD hits
- for (Int_t iHit = 0; iHit < nHit; iHit++) {
-
- countHits++;
-
- AliTRDhit *hit = (AliTRDhit *) fTRD->Hits()->UncheckedAt(iHit);
- pos[0] = hit->X();
- pos[1] = hit->Y();
- pos[2] = hit->Z();
- Float_t q = hit->GetCharge();
- Int_t track = hit->Track();
- Int_t detector = hit->GetDetector();
- Int_t plane = fGeo->GetPlane(detector);
- Int_t sector = fGeo->GetSector(detector);
- Int_t chamber = fGeo->GetChamber(detector);
-
- if (!(CheckDetector(plane,chamber,sector))) continue;
-
- Int_t nRowMax = fGeo->GetRowMax(plane,chamber,sector);
- Int_t nColMax = fGeo->GetColMax(plane);
- Int_t nTimeMax = fGeo->GetTimeMax();
- Int_t nTimeBefore = fGeo->GetTimeBefore();
- Int_t nTimeAfter = fGeo->GetTimeAfter();
- Int_t nTimeTotal = fGeo->GetTimeTotal();
- Float_t row0 = fGeo->GetRow0(plane,chamber,sector);
- Float_t col0 = fGeo->GetCol0(plane);
- Float_t time0 = fGeo->GetTime0(plane);
- Float_t rowPadSize = fGeo->GetRowPadSize(plane,chamber,sector);
- Float_t colPadSize = fGeo->GetColPadSize(plane);
- Float_t timeBinSize = fGeo->GetTimeBinSize();
- Float_t divideRow = 1.0 / rowPadSize;
- Float_t divideCol = 1.0 / colPadSize;
- Float_t divideTime = 1.0 / timeBinSize;
-
- if (fVerbose > 1) {
- printf("Analyze hit no. %d ",iHit);
- printf("-----------------------------------------------------------\n");
- hit->Dump();
- printf("plane = %d, sector = %d, chamber = %d\n"
- ,plane,sector,chamber);
- printf("nRowMax = %d, nColMax = %d, nTimeMax = %d\n"
- ,nRowMax,nColMax,nTimeMax);
- printf("nTimeBefore = %d, nTimeAfter = %d, nTimeTotal = %d\n"
- ,nTimeBefore,nTimeAfter,nTimeTotal);
- printf("row0 = %f, col0 = %f, time0 = %f\n"
- ,row0,col0,time0);
- printf("rowPadSize = %f, colPadSize = %f, timeBinSize = %f\n"
- ,rowPadSize,colPadSize,timeBinSize);
- }
-
- // Don't analyze test hits
- if (hit->FromTest()) continue;
+ delete [] hits[det];
- if (detector != detectorOld) {
+ } // for: detector
- if (fVerbose > 1) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Get new container. New det = %d, Old det = %d\n"
- ,detector,detectorOld);
- }
- // Compress the old one if enabled
- if ((fCompress) && (detectorOld > -1)) {
- if (fVerbose > 1) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Compress the old container ...");
- }
- signals->Compress(1,0);
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionary[iDict]->Compress(1,0);
- }
- if (fVerbose > 1) printf("done\n");
- }
- // Get the new container
- signals = (AliTRDdataArrayF *) signalsArray->At(detector);
- if (signals->GetNtime() == 0) {
- // Allocate a new one if not yet existing
- if (fVerbose > 1) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Allocate a new container ... ");
- }
- signals->Allocate(nRowMax,nColMax,nTimeTotal);
- }
- else {
- // Expand an existing one
- if (fCompress) {
- if (fVerbose > 1) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Expand an existing container ... ");
- }
- signals->Expand();
- }
- }
- // The same for the dictionary
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
- if (dictionary[iDict]->GetNtime() == 0) {
- dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
- }
- else {
- if (fCompress) dictionary[iDict]->Expand();
- }
- }
- if (fVerbose > 1) printf("done\n");
- detectorOld = detector;
- }
+ delete [] hits;
+ delete [] nhit;
- // Rotate the sectors on top of each other
- fGeo->Rotate(detector,pos,rot);
-
- // The driftlength. It is negative if the hit is in the
- // amplification region.
- Float_t driftlength = time0 - rot[0];
-
- // Take also the drift in the amplification region into account
- // The drift length is at the moment still the same, regardless of
- // the position relativ to the wire. This non-isochronity needs still
- // to be implemented.
- Float_t driftlengthL = TMath::Abs(driftlength + kAmWidth);
- if (fExBOn) driftlengthL /= TMath::Sqrt(fLorentzFactor);
-
- // Loop over all electrons of this hit
- // TR photons produce hits with negative charge
- Int_t nEl = ((Int_t) TMath::Abs(q));
- for (Int_t iEl = 0; iEl < nEl; iEl++) {
-
- xyz[0] = rot[0];
- xyz[1] = rot[1];
- xyz[2] = rot[2];
-
- // Electron attachment
- if (fElAttachOn) {
- if (gRandom->Rndm() < (driftlengthL * elAttachProp))
- continue;
- }
+ return kTRUE;
- // Apply the diffusion smearing
- if (fDiffusionOn) {
- if (!(Diffusion(driftlengthL,xyz))) continue;
- }
+}
- // Apply E x B effects (depends on drift direction)
- if (fExBOn) {
- if (!(ExB(driftlength+kAmWidth,xyz))) continue;
- }
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::SortHits(Float_t **hits, Int_t *nhit)
+{
+ //
+ // Read all the hits and sorts them according to detector number
+ // in the output array <hits>.
+ //
- // The electron position after diffusion and ExB in pad coordinates
- // The pad row (z-direction)
- Int_t rowE = ((Int_t) ((xyz[2] - row0) * divideRow));
- if ((rowE < 0) || (rowE >= nRowMax)) continue;
+ AliDebug(1,"Start sorting hits");
- // The pad column (rphi-direction)
- Int_t colE = ((Int_t) ((xyz[1] - col0) * divideCol));
- if ((colE < 0) || (colE >= nColMax)) continue;
-
- // The time bin (negative for hits in the amplification region)
- // In the amplification region the electrons drift from both sides
- // to the middle (anode wire plane)
- Float_t timeDist = time0 - xyz[0];
- Float_t timeOffset = 0;
- Int_t timeE = 0;
- if (timeDist > 0) {
- // The time bin
- timeE = ((Int_t) (timeDist * divideTime));
- // The distance of the position to the middle of the timebin
- timeOffset = ((((Float_t) timeE) + 0.5) * timeBinSize) - timeDist;
+ const Int_t kNdet = AliTRDgeometry::Ndet();
+ // Size of the hit vector
+ const Int_t kNhit = 6;
+
+ Float_t *xyz = 0;
+ Int_t nhitTrk = 0;
+
+ Int_t *lhit = new Int_t[kNdet];
+
+ for (Int_t det = 0; det < kNdet; det++) {
+ lhit[det] = 0;
+ nhit[det] = 0;
+ hits[det] = 0;
+ }
+
+ AliLoader *gimme = fRunLoader->GetLoader("TRDLoader");
+ if (!gimme->TreeH()) {
+ gimme->LoadHits();
+ }
+ TTree *hitTree = gimme->TreeH();
+ if (hitTree == 0x0) {
+ AliError("Can not get TreeH");
+ return kFALSE;
+ }
+ fTRD->SetTreeAddress();
+
+ // Get the number of entries in the hit tree
+ // (Number of primary particles creating a hit somewhere)
+ Int_t nTrk = (Int_t) hitTree->GetEntries();
+ AliDebug(1,Form("Found %d tracks",nTrk));
+
+ // Loop through all the tracks in the tree
+ for (Int_t iTrk = 0; iTrk < nTrk; iTrk++) {
+
+ gAlice->GetMCApp()->ResetHits();
+ hitTree->GetEvent(iTrk);
+
+ if (!fTRD->Hits()) {
+ AliError(Form("No hits array for track = %d",iTrk));
+ continue;
+ }
+
+ // Number of hits for this track
+ nhitTrk = fTRD->Hits()->GetEntriesFast();
+
+ Int_t hitCnt = 0;
+ // Loop through the TRD hits
+ AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
+ while (hit) {
+
+ hitCnt++;
+
+ // Don't analyze test hits
+ if (((Int_t) hit->GetCharge()) != 0) {
+
+ Int_t trk = hit->Track();
+ Int_t det = hit->GetDetector();
+ Int_t q = hit->GetCharge();
+ Float_t x = hit->X();
+ Float_t y = hit->Y();
+ Float_t z = hit->Z();
+ Float_t time = hit->GetTime();
+
+ if (nhit[det] == lhit[det]) {
+ // Inititialization of new detector
+ xyz = new Float_t[kNhit*(nhitTrk+lhit[det])];
+ if (hits[det]) {
+ memcpy(xyz,hits[det],sizeof(Float_t)*kNhit*lhit[det]);
+ delete [] hits[det];
+ }
+ lhit[det] += nhitTrk;
+ hits[det] = xyz;
}
else {
- // Difference between half of the amplification gap width and
- // the distance to the anode wire
- Float_t anodeDist = kAmWidth - TMath::Abs(timeDist + kAmWidth);
- // The time bin
- timeE = -1 * (((Int_t ) (anodeDist * divideTime)) + 1);
- // The distance of the position to the middle of the timebin
- timeOffset = ((((Float_t) timeE) + 0.5) * timeBinSize) + anodeDist;
- }
-
- // Apply the gas gain including fluctuations
- Float_t ggRndm = 0.0;
- do {
- ggRndm = gRandom->Rndm();
- } while (ggRndm <= 0);
- Int_t signal = (Int_t) (-fGasGain * TMath::Log(ggRndm));
-
- // Apply the pad response
- if (fPRFOn) {
- // The distance of the electron to the center of the pad
- // in units of pad width
- Float_t dist = (xyz[1] - col0 - (colE + 0.5) * colPadSize)
- * divideCol;
- if (!(PadResponse(signal,dist,padSignal))) continue;
- }
- else {
- padSignal[0] = 0.0;
- padSignal[1] = signal;
- padSignal[2] = 0.0;
+ xyz = hits[det];
}
+ xyz[nhit[det]*kNhit+0] = x;
+ xyz[nhit[det]*kNhit+1] = y;
+ xyz[nhit[det]*kNhit+2] = z;
+ xyz[nhit[det]*kNhit+3] = q;
+ xyz[nhit[det]*kNhit+4] = trk;
+ xyz[nhit[det]*kNhit+5] = time;
+ nhit[det]++;
- // Sample the time response inside the drift region
- // + additional time bins before and after.
- // The sampling is done always in the middle of the time bin
- for (Int_t iTimeBin = TMath::Max(timeE-timeTRDbeg, -nTimeBefore)
- ;iTimeBin < TMath::Min(timeE+timeTRDend,nTimeMax+nTimeAfter )
- ;iTimeBin++) {
-
- // Apply the time response
- Float_t timeResponse = 1.0;
- if (fTRFOn) {
- Float_t time = (iTimeBin - timeE) * timeBinSize + timeOffset;
- timeResponse = TimeResponse(time);
- }
+ } // if: charge != 0
- signalOld[0] = 0.0;
- signalOld[1] = 0.0;
- signalOld[2] = 0.0;
-
- for (iPad = 0; iPad < kNpad; iPad++) {
-
- Int_t colPos = colE + iPad - 1;
- if (colPos < 0) continue;
- if (colPos >= nColMax) break;
-
- // Add the signals
- // Note: The time bin number is shifted by nTimeBefore to avoid negative
- // time bins. This has to be subtracted later.
- Int_t iCurrentTimeBin = iTimeBin + nTimeBefore;
- signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
- signalOld[iPad] += padSignal[iPad] * timeResponse;
- signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]);
-
- // Store the track index in the dictionary
- // Note: We store index+1 in order to allow the array to be compressed
- if (signalOld[iPad] > 0) {
- for (iDict = 0; iDict < kNDict; iDict++) {
- Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
- ,colPos
- ,iCurrentTimeBin);
- if (oldTrack == track+1) break;
- if (oldTrack == 0) {
- dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
- break;
- }
- }
- }
+ hit = (AliTRDhit *) fTRD->NextHit();
- }
+ } // for: hits of one track
- }
+ } // for: tracks
- }
+ delete [] lhit;
- }
+ return kTRUE;
- } // All hits finished
+}
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Finished analyzing %d hits\n",countHits);
- }
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::ConvertHits(Int_t det, Float_t *hits, Int_t nhit
+ , AliTRDarraySignal *signals)
+{
+ //
+ // Converts the detectorwise sorted hits to detector signals
+ //
+
+ AliDebug(1,Form("Start converting hits for detector=%d (nhits=%d)",det,nhit));
- // The total conversion factor
- Float_t convert = kEl2fC * fPadCoupling * fTimeCoupling * fChipGain;
+ // Number of pads included in the pad response
+ const Int_t kNpad = 3;
+ // Number of track dictionary arrays
+ const Int_t kNdict = AliTRDdigitsManager::kNDict;
+ // Size of the hit vector
+ const Int_t kNhit = 6;
+
+ // Width of the amplification region
+ const Float_t kAmWidth = AliTRDgeometry::AmThick();
+ // Width of the drift region
+ const Float_t kDrWidth = AliTRDgeometry::DrThick();
+ // Drift + amplification region
+ const Float_t kDrMin = - 0.5 * kAmWidth;
+ const Float_t kDrMax = kDrWidth + 0.5 * kAmWidth;
+
+ Int_t iPad = 0;
+ Int_t dict = 0;
+ Int_t timeBinTRFend = 1;
- // Loop through all chambers to finalize the digits
- for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
+ Double_t pos[3];
+ Double_t loc[3];
+ Double_t padSignal[kNpad];
+ Double_t signalOld[kNpad];
- Int_t plane = fGeo->GetPlane(iDet);
- Int_t sector = fGeo->GetSector(iDet);
- Int_t chamber = fGeo->GetChamber(iDet);
- Int_t nRowMax = fGeo->GetRowMax(plane,chamber,sector);
- Int_t nColMax = fGeo->GetColMax(plane);
- Int_t nTimeMax = fGeo->GetTimeMax();
- Int_t nTimeTotal = fGeo->GetTimeTotal();
+ AliTRDarrayDictionary *dictionary[kNdict];
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Digitization for chamber %d\n",iDet);
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+
+ if (!commonParam) {
+ AliFatal("Could not get common parameterss");
+ return kFALSE;
+ }
+ if (!simParam) {
+ AliFatal("Could not get simulation parameters");
+ return kFALSE;
+ }
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
+
+ // Get the detector wise calibration objects
+ AliTRDCalROC *calVdriftROC = 0;
+ Float_t calVdriftDetValue = 0.0;
+ const AliTRDCalDet *calVdriftDet = calibration->GetVdriftDet();
+ AliTRDCalROC *calT0ROC = 0;
+ Float_t calT0DetValue = 0.0;
+ const AliTRDCalDet *calT0Det = calibration->GetT0Det();
+
+ if (simParam->TRFOn()) {
+ timeBinTRFend = ((Int_t) (simParam->GetTRFhi()
+ * commonParam->GetSamplingFrequency())) - 1;
+ }
+
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+ Float_t samplingRate = commonParam->GetSamplingFrequency();
+ Float_t elAttachProp = simParam->GetElAttachProp() / 100.0;
+
+ AliTRDpadPlane *padPlane = fGeo->GetPadPlane(det);
+ Int_t layer = fGeo->GetLayer(det); //update
+ Float_t row0 = padPlane->GetRow0ROC();
+ Int_t nRowMax = padPlane->GetNrows();
+ Int_t nColMax = padPlane->GetNcols();
+
+ // Create a new array for the signals
+ signals->Allocate(nRowMax,nColMax,nTimeTotal);
+
+ // Create a new array for the dictionary
+ for (dict = 0; dict < kNdict; dict++) {
+ dictionary[dict] = (AliTRDarrayDictionary *) fDigitsManager->GetDictionary(det,dict);
+ dictionary[dict]->Allocate(nRowMax,nColMax,nTimeTotal);
+ }
+
+ // Loop through the hits in this detector
+ for (Int_t hit = 0; hit < nhit; hit++) {
+
+ pos[0] = hits[hit*kNhit+0];
+ pos[1] = hits[hit*kNhit+1];
+ pos[2] = hits[hit*kNhit+2];
+ Float_t q = hits[hit*kNhit+3];
+ Float_t hittime = hits[hit*kNhit+5];
+ Int_t track = ((Int_t) hits[hit*kNhit+4]);
+
+ Int_t inDrift = 1;
+
+ // Find the current volume with the geo manager
+ gGeoManager->SetCurrentPoint(pos);
+ gGeoManager->FindNode();
+ if (strstr(gGeoManager->GetPath(),"/UK")) {
+ inDrift = 0;
}
- // Add a container for the digits of this detector
- digits = fDigitsManager->GetDigits(iDet);
- // Allocate memory space for the digits buffer
- digits->Allocate(nRowMax,nColMax,nTimeTotal);
+ // Get the calibration objects
+ calVdriftROC = calibration->GetVdriftROC(det);
+ calVdriftDetValue = calVdriftDet->GetValue(det);
+ calT0ROC = calibration->GetT0ROC(det);
+ calT0DetValue = calT0Det->GetValue(det);
+
+ // Go to the local coordinate system:
+ // loc[0] - col direction in amplification or driftvolume
+ // loc[1] - row direction in amplification or driftvolume
+ // loc[2] - time direction in amplification or driftvolume
+ gGeoManager->MasterToLocal(pos,loc);
+ if (inDrift) {
+ // Relative to middle of amplification region
+ loc[2] = loc[2] - kDrWidth/2.0 - kAmWidth/2.0;
+ }
- // Get the signal container
- signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
- if (signals->GetNtime() == 0) {
- // Create missing containers
- signals->Allocate(nRowMax,nColMax,nTimeTotal);
+ // The driftlength [cm] (w/o diffusion yet !).
+ // It is negative if the hit is between pad plane and anode wires.
+ Double_t driftlength = -1.0 * loc[2];
+
+ // Stupid patch to take care of TR photons that are absorbed
+ // outside the chamber volume. A real fix would actually need
+ // a more clever implementation of the TR hit generation
+ if (q < 0.0) {
+ if ((loc[1] < padPlane->GetRowEndROC()) ||
+ (loc[1] > padPlane->GetRow0ROC())) {
+ continue;
+ }
+ if ((driftlength < kDrMin) ||
+ (driftlength > kDrMax)) {
+ continue;
+ }
}
- else {
- // Expand the container if neccessary
- if (fCompress) signals->Expand();
+
+ // Get row and col of unsmeared electron to retrieve drift velocity
+ // The pad row (z-direction)
+ Int_t rowE = padPlane->GetPadRowNumberROC(loc[1]);
+ if (rowE < 0) {
+ continue;
}
- // Create the missing dictionary containers
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
- if (dictionary[iDict]->GetNtime() == 0) {
- dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
- }
+ Double_t rowOffset = padPlane->GetPadRowOffsetROC(rowE,loc[1]);
+ // The pad column (rphi-direction)
+ Double_t offsetTilt = padPlane->GetTiltOffset(rowOffset);
+ Int_t colE = padPlane->GetPadColNumber(loc[0]+offsetTilt);
+ if (colE < 0) {
+ continue;
}
+ Double_t colOffset = 0.0;
- Int_t nDigits = 0;
-
- // Don't create noise in detectors that are switched off
- if (CheckDetector(plane,chamber,sector)) {
-
- // Create the digits for this chamber
- for (iRow = 0; iRow < nRowMax; iRow++ ) {
- for (iCol = 0; iCol < nColMax; iCol++ ) {
- for (iTime = 0; iTime < nTimeTotal; iTime++) {
-
- // Create summable digits
- if (fSDigits) {
-
- Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
- signalAmp *= fSDigitsScale;
- signalAmp = TMath::Min(signalAmp,1.0e9);
- Int_t adc = (Int_t) signalAmp;
- nDigits++;
- digits->SetDataUnchecked(iRow,iCol,iTime,adc);
-
- }
- // Create normal digits
- else {
-
- Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
-
- // Add the noise
- signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,fNoise),0.0);
- // Convert to mV
- signalAmp *= convert;
- // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
- // signal is larger than fADCinRange
- Int_t adc = 0;
- if (signalAmp >= fADCinRange) {
- adc = ((Int_t) fADCoutRange);
- }
- else {
- adc = ((Int_t) (signalAmp * (fADCoutRange / fADCinRange)));
- }
+ // Normalized drift length
+ Float_t driftvelocity = calVdriftDetValue * calVdriftROC->GetValue(colE,rowE);
+ Double_t absdriftlength = TMath::Abs(driftlength);
+ if (commonParam->ExBOn()) {
+ absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
+ }
- // Store the amplitude of the digit if above threshold
- if (adc > fADCthreshold) {
- if (fVerbose > 2) {
- printf(" iRow = %d, iCol = %d, iTime = %d\n"
- ,iRow,iCol,iTime);
- printf(" signal = %f, adc = %d\n",signalAmp,adc);
- }
- nDigits++;
- digits->SetDataUnchecked(iRow,iCol,iTime,adc);
- }
+ // Loop over all electrons of this hit
+ // TR photons produce hits with negative charge
+ Int_t nEl = ((Int_t) TMath::Abs(q));
+ for (Int_t iEl = 0; iEl < nEl; iEl++) {
+
+ // Now the real local coordinate system of the ROC
+ // column direction: locC
+ // row direction: locR
+ // time direction: locT
+ // locR and locC are identical to the coordinates of the corresponding
+ // volumina of the drift or amplification region.
+ // locT is defined relative to the wire plane (i.e. middle of amplification
+ // region), meaning locT = 0, and is negative for hits coming from the
+ // drift region.
+ Double_t locC = loc[0];
+ Double_t locR = loc[1];
+ Double_t locT = loc[2];
+
+ // Electron attachment
+ if (simParam->ElAttachOn()) {
+ if (gRandom->Rndm() < (absdriftlength * elAttachProp)) {
+ continue;
+ }
+ }
+
+ // Apply the diffusion smearing
+ if (simParam->DiffusionOn()) {
+ if (!(Diffusion(driftvelocity,absdriftlength,locR,locC,locT))) {
+ continue;
+ }
+ }
- }
+ // Apply E x B effects (depends on drift direction)
+ if (commonParam->ExBOn()) {
+ if (!(ExB(driftvelocity,driftlength,locC))) {
+ continue;
+ }
+ }
- }
+ // The electron position after diffusion and ExB in pad coordinates.
+ // The pad row (z-direction)
+ rowE = padPlane->GetPadRowNumberROC(locR);
+ if (rowE < 0) continue;
+ rowOffset = padPlane->GetPadRowOffsetROC(rowE,locR);
+
+ // The pad column (rphi-direction)
+ offsetTilt = padPlane->GetTiltOffset(rowOffset);
+ colE = padPlane->GetPadColNumber(locC+offsetTilt);
+ if (colE < 0) continue;
+ colOffset = padPlane->GetPadColOffset(colE,locC+offsetTilt);
+
+ // Also re-retrieve drift velocity because col and row may have changed
+ driftvelocity = calVdriftDetValue * calVdriftROC->GetValue(colE,rowE);
+ Float_t t0 = calT0DetValue + calT0ROC->GetValue(colE,rowE);
+
+ // Convert the position to drift time [mus], using either constant drift velocity or
+ // time structure of drift cells (non-isochronity, GARFIELD calculation).
+ // Also add absolute time of hits to take pile-up events into account properly
+ Double_t drifttime;
+ if (simParam->TimeStructOn()) {
+ // Get z-position with respect to anode wire
+ Double_t zz = row0 - locR + padPlane->GetAnodeWireOffset();
+ zz -= ((Int_t)(2 * zz)) / 2.0;
+ if (zz > 0.25) {
+ zz = 0.5 - zz;
}
+ // Use drift time map (GARFIELD)
+ drifttime = commonParam->TimeStruct(driftvelocity,0.5*kAmWidth-1.0*locT,zz)
+ + hittime;
+ }
+ else {
+ // Use constant drift velocity
+ drifttime = TMath::Abs(locT) / driftvelocity
+ + hittime;
}
- }
+ // Apply the gas gain including fluctuations
+ Double_t ggRndm = 0.0;
+ do {
+ ggRndm = gRandom->Rndm();
+ } while (ggRndm <= 0);
+ Double_t signal = -(simParam->GetGasGain()) * TMath::Log(ggRndm);
+
+ // Apply the pad response
+ if (simParam->PRFOn()) {
+ // The distance of the electron to the center of the pad
+ // in units of pad width
+ Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
+ / padPlane->GetColSize(colE);
+ // This is a fixed parametrization, i.e. not dependent on
+ // calibration values !
+ if (!(calibration->PadResponse(signal,dist,layer,padSignal))) continue;
+ }
+ else {
+ padSignal[0] = 0.0;
+ padSignal[1] = signal;
+ padSignal[2] = 0.0;
+ }
- // Compress the arrays
- digits->Compress(1,0);
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionary[iDict]->Compress(1,0);
- }
+ // The time bin (always positive), with t0 distortion
+ Double_t timeBinIdeal = drifttime * samplingRate + t0;
+ // Protection
+ if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) {
+ timeBinIdeal = 2 * nTimeTotal;
+ }
+ Int_t timeBinTruncated = ((Int_t) timeBinIdeal);
+ // The distance of the position to the middle of the timebin
+ Double_t timeOffset = ((Float_t) timeBinTruncated
+ + 0.5 - timeBinIdeal) / samplingRate;
+
+ // Sample the time response inside the drift region
+ // + additional time bins before and after.
+ // The sampling is done always in the middle of the time bin
+ for (Int_t iTimeBin = TMath::Max(timeBinTruncated,0)
+ ;iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal)
+ ;iTimeBin++) {
+
+ // Apply the time response
+ Double_t timeResponse = 1.0;
+ Double_t crossTalk = 0.0;
+ Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset;
+
+ if (simParam->TRFOn()) {
+ timeResponse = simParam->TimeResponse(time);
+ }
+ if (simParam->CTOn()) {
+ crossTalk = simParam->CrossTalk(time);
+ }
- totalSizeDigits += digits->GetSize();
- totalSizeDict0 += dictionary[0]->GetSize();
- totalSizeDict1 += dictionary[1]->GetSize();
- totalSizeDict2 += dictionary[2]->GetSize();
-
- Float_t nPixel = nRowMax * nColMax * nTimeMax;
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Found %d digits in detector %d (%3.0f).\n"
- ,nDigits,iDet
- ,100.0 * ((Float_t) nDigits) / nPixel);
- }
+ signalOld[0] = 0.0;
+ signalOld[1] = 0.0;
+ signalOld[2] = 0.0;
- if (fCompress) signals->Compress(1,0);
+ for (iPad = 0; iPad < kNpad; iPad++) {
- }
+ Int_t colPos = colE + iPad - 1;
+ if (colPos < 0) continue;
+ if (colPos >= nColMax) break;
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Total number of analyzed hits = %d\n",countHits);
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
- ,totalSizeDict0
- ,totalSizeDict1
- ,totalSizeDict2);
- }
+ // Add the signals
+ signalOld[iPad] = signals->GetData(rowE,colPos,iTimeBin);
+
+ if (colPos != colE) {
+ // Cross talk added to non-central pads
+ signalOld[iPad] += padSignal[iPad]
+ * (timeResponse + crossTalk);
+ }
+ else {
+ // W/o cross talk at central pad
+ signalOld[iPad] += padSignal[iPad]
+ * timeResponse;
+ }
+
+ signals->SetData(rowE,colPos,iTimeBin,signalOld[iPad]);
+
+ // Store the track index in the dictionary
+ // Note: We store index+1 in order to allow the array to be compressed
+ // Note2: Taking out the +1 in track
+ if (signalOld[iPad] > 0.0) {
+ for (dict = 0; dict < kNdict; dict++) {
+ Int_t oldTrack = dictionary[dict]->GetData(rowE,colPos,iTimeBin);
+ if (oldTrack == track) break;
+ if (oldTrack == -1 ) {
+ dictionary[dict]->SetData(rowE,colPos,iTimeBin,track);
+ break;
+ }
+ }
+ }
+
+ } // Loop: pads
+
+ } // Loop: time bins
+
+ } // Loop: electrons of a single hit
+
+ } // Loop: hits
+
+ AliDebug(2,Form("Finished analyzing %d hits",nhit));
return kTRUE;
}
//_____________________________________________________________________________
-void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
+Bool_t AliTRDdigitizer::ConvertSignals(Int_t det, AliTRDarraySignal *signals)
{
//
- // Add a digits manager for s-digits to the input list.
+ // Convert signals to digits
//
- fSDigitsManagerList->Add(man);
+ AliDebug(1,Form("Start converting the signals for detector %d",det));
+
+ if (fSDigits) {
+ // Convert the signal array to s-digits
+ if (!Signal2SDigits(det,signals)) {
+ return kFALSE;
+ }
+ }
+ else {
+ // Convert the signal array to digits
+ if (!Signal2ADC(det,signals)) {
+ return kFALSE;
+ }
+ }
+
+ // Compress the arrays
+ CompressOutputArrays(det);
+
+ return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::ConvertSDigits()
+Bool_t AliTRDdigitizer::Signal2ADC(Int_t det, AliTRDarraySignal *signals)
{
//
- // Converts s-digits to normal digits
+ // Converts the sampled electron signals to ADC values for a given chamber
//
- // Number of track dictionary arrays
- const Int_t kNDict = AliTRDdigitsManager::kNDict;
+ AliDebug(1,Form("Start converting signals to ADC values for detector=%d",det));
- // Converts number of electrons to fC
- const Double_t kEl2fC = 1.602E-19 * 1.0E15;
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
- Int_t iDict = 0;
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ if (!simParam) {
+ AliFatal("Could not get simulation parameters");
+ return kFALSE;
+ }
- if (fVerbose > 0) {
- this->Dump();
+ // Converts number of electrons to fC
+ const Double_t kEl2fC = 1.602e-19 * 1.0e15;
+
+ // Coupling factor
+ Double_t coupling = simParam->GetPadCoupling()
+ * simParam->GetTimeCoupling();
+ // Electronics conversion factor
+ Double_t convert = kEl2fC
+ * simParam->GetChipGain();
+ // ADC conversion factor
+ Double_t adcConvert = simParam->GetADCoutRange()
+ / simParam->GetADCinRange();
+ // The electronics baseline in mV
+ Double_t baseline = simParam->GetADCbaseline()
+ / adcConvert;
+ // The electronics baseline in electrons
+ Double_t baselineEl = baseline
+ / convert;
+
+ Int_t row = 0;
+ Int_t col = 0;
+ Int_t time = 0;
+
+ Int_t nRowMax = fGeo->GetPadPlane(det)->GetNrows();
+ Int_t nColMax = fGeo->GetPadPlane(det)->GetNcols();
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ // The gainfactor calibration objects
+ const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet();
+ AliTRDCalROC *calGainFactorROC = 0;
+ Float_t calGainFactorDetValue = 0.0;
+
+ AliTRDarrayADC *digits = 0x0;
+
+ if (!signals) {
+ AliError(Form("Signals array for detector %d does not exist\n",det));
+ return kFALSE;
+ }
+ if (signals->HasData()) {
+ // Expand the container if neccessary
+ signals->Expand();
+ }
+ else {
+ // Create missing containers
+ signals->Allocate(nRowMax,nColMax,nTimeTotal);
}
- Double_t sDigitsScale = 1.0 / GetSDigitsScale();
- Double_t noise = GetNoise();
- Double_t padCoupling = GetPadCoupling();
- Double_t timeCoupling = GetTimeCoupling();
- Double_t chipGain = GetChipGain();
- Double_t convert = kEl2fC * padCoupling * timeCoupling * chipGain;;
- Double_t adcInRange = GetADCinRange();
- Double_t adcOutRange = GetADCoutRange();
- Int_t adcThreshold = GetADCthreshold();
+ // Get the container for the digits of this detector
+ if (fDigitsManager->HasSDigits()) {
+ AliError("Digits manager has s-digits");
+ return kFALSE;
+ }
- AliTRDdataArrayI *digitsIn;
- AliTRDdataArrayI *digitsOut;
- AliTRDdataArrayI *dictionaryIn[kNDict];
- AliTRDdataArrayI *dictionaryOut[kNDict];
+ digits = (AliTRDarrayADC *) fDigitsManager->GetDigits(det);
+ // Allocate memory space for the digits buffer
+ if (!digits->HasData()) {
+ digits->Allocate(nRowMax,nColMax,nTimeTotal);
+ }
- // Loop through the detectors
- for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
+ // Get the calibration objects
+ calGainFactorROC = calibration->GetGainFactorROC(det);
+ calGainFactorDetValue = calGainFactorDet->GetValue(det);
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::ConvertSDigits -- ");
- printf("Convert detector %d to digits.\n",iDet);
- }
+ // Create the digits for this chamber
+ for (row = 0; row < nRowMax; row++ ) {
+ for (col = 0; col < nColMax; col++ ) {
- Int_t plane = fGeo->GetPlane(iDet);
- Int_t sector = fGeo->GetSector(iDet);
- Int_t chamber = fGeo->GetChamber(iDet);
- Int_t nRowMax = fGeo->GetRowMax(plane,chamber,sector);
- Int_t nColMax = fGeo->GetColMax(plane);
- Int_t nTimeTotal = fGeo->GetTimeTotal();
-
- digitsIn = fSDigitsManager->GetDigits(iDet);
- digitsIn->Expand();
- digitsOut = fDigitsManager->GetDigits(iDet);
- digitsOut->Allocate(nRowMax,nColMax,nTimeTotal);
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
- dictionaryIn[iDict]->Expand();
- dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
- dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
- }
+ // Check whether pad is masked
+ // Bridged pads are not considered yet!!!
+ if (calibration->IsPadMasked(det,col,row)) {
+ continue;
+ }
- for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
- for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
- for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
-
- Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
- signal *= sDigitsScale;
- // Add the noise
- signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),0.0);
- // Convert to mV
- signal *= convert;
- // Convert to ADC counts. Set the overflow-bit adcOutRange if the
- // signal is larger than adcInRange
- Int_t adc = 0;
- if (signal >= adcInRange) {
- adc = ((Int_t) adcOutRange);
- }
- else {
- adc = ((Int_t) (signal * (adcOutRange / adcInRange)));
- }
- // Store the amplitude of the digit if above threshold
- if (adc > adcThreshold) {
- digitsOut->SetDataUnchecked(iRow,iCol,iTime,adc);
- }
- // Copy the dictionary
- for (iDict = 0; iDict < kNDict; iDict++) {
- Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime);
- dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track);
- }
+ // The gain factors
+ Float_t padgain = calGainFactorDetValue
+ * calGainFactorROC->GetValue(col,row);
+ if (padgain <= 0) {
+ AliError(Form("Not a valid gain %f, %d %d %d",padgain,det,col,row));
+ }
+ for (time = 0; time < nTimeTotal; time++) {
+
+ // Get the signal amplitude
+ Float_t signalAmp = signals->GetData(row,col,time);
+ // Pad and time coupling
+ signalAmp *= coupling;
+ // Gain factors
+ signalAmp *= padgain;
+
+ // Add the noise, starting from minus ADC baseline in electrons
+ signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
+ ,-baselineEl);
+
+ // Convert to mV
+ signalAmp *= convert;
+ // Add ADC baseline in mV
+ signalAmp += baseline;
+
+ // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
+ // signal is larger than fADCinRange
+ Short_t adc = 0;
+ if (signalAmp >= simParam->GetADCinRange()) {
+ adc = ((Short_t) simParam->GetADCoutRange());
+ }
+ else {
+ adc = TMath::Nint(signalAmp * adcConvert);
}
- }
- }
- if (fCompress) {
- digitsIn->Compress(1,0);
- digitsOut->Compress(1,0);
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionaryIn[iDict]->Compress(1,0);
- dictionaryOut[iDict]->Compress(1,0);
- }
- }
+ // Saving all digits
+ digits->SetData(row,col,time,adc);
- }
+ } // for: time
+
+ } // for: col
+ } // for: row
+
+ // Run the digital processing in the MCM
+ RunDigitalProcessing(digits, det);
return kTRUE;
}
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::Signal2SDigits(Int_t det, AliTRDarraySignal *signals)
+{
+ //
+ // Converts the sampled electron signals to s-digits
+ //
+
+ AliDebug(1,Form("Start converting signals to s-digits for detector=%d",det));
+
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
+
+ Int_t row = 0;
+ Int_t col = 0;
+ Int_t time = 0;
+
+ Int_t nRowMax = fGeo->GetPadPlane(det)->GetNrows();
+ Int_t nColMax = fGeo->GetPadPlane(det)->GetNcols();
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ // Get the container for the digits of this detector
+
+ if (!fDigitsManager->HasSDigits()) {
+ AliError("Digits manager has no s-digits");
+ return kFALSE;
+ }
+
+ AliTRDarraySignal *digits = (AliTRDarraySignal *) fDigitsManager->GetSDigits(det);
+ // Allocate memory space for the digits buffer
+ if (!digits->HasData()) {
+ digits->Allocate(nRowMax,nColMax,nTimeTotal);
+ }
+
+ // Create the sdigits for this chamber
+ for (row = 0; row < nRowMax; row++ ) {
+ for (col = 0; col < nColMax; col++ ) {
+ for (time = 0; time < nTimeTotal; time++) {
+ digits->SetData(row,col,time,signals->GetData(row,col,time));
+ } // for: time
+ } // for: col
+ } // for: row
+
+ return kTRUE;
+
+}
+
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::SDigits2Digits()
+{
+ //
+ // Merges the input s-digits and converts them to normal digits
+ //
+
+ if (!MergeSDigits()) {
+ return kFALSE;
+ }
+
+ return ConvertSDigits();
+
+}
+
//_____________________________________________________________________________
Bool_t AliTRDdigitizer::MergeSDigits()
{
// Number of track dictionary arrays
const Int_t kNDict = AliTRDdigitsManager::kNDict;
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ if (!simParam) {
+ AliFatal("Could not get simulation parameters");
+ return kFALSE;
+ }
+
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
+
Int_t iDict = 0;
+ Int_t jDict = 0;
- AliTRDdataArrayI *digitsA;
- AliTRDdataArrayI *digitsB;
- AliTRDdataArrayI *dictionaryA[kNDict];
- AliTRDdataArrayI *dictionaryB[kNDict];
+ AliTRDarraySignal *digitsA;
+ AliTRDarraySignal *digitsB;
+ AliTRDarrayDictionary *dictionaryA[kNDict];
+ AliTRDarrayDictionary *dictionaryB[kNDict];
+ AliTRDdigitsManager *mergeSDigitsManager = 0x0;
// Get the first s-digits
fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
- if (!fSDigitsManager) return kFALSE;
+ if (!fSDigitsManager) {
+ AliError("No SDigits manager");
+ return kFALSE;
+ }
// Loop through the other sets of s-digits
- AliTRDdigitsManager *mergeSDigitsManager;
- mergeSDigitsManager = (AliTRDdigitsManager *)
- fSDigitsManagerList->After(fSDigitsManager);
-
- if (fVerbose > 0) {
- if (mergeSDigitsManager) {
- printf("AliTRDdigitizer::MergeSDigits -- ");
- printf("Merge serveral input files.\n");
- }
- else {
- printf("AliTRDdigitizer::MergeSDigits -- ");
- printf("Only one input file.\n");
- }
- }
+ mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(fSDigitsManager);
+ if (mergeSDigitsManager) {
+ AliDebug(1,Form("Merge %d input files.",fSDigitsManagerList->GetSize()));
+ }
+ else {
+ AliDebug(1,"Only one input file.");
+ }
+
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
Int_t iMerge = 0;
+
while (mergeSDigitsManager) {
iMerge++;
-
+
// Loop through the detectors
for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
- Int_t plane = fGeo->GetPlane(iDet);
- Int_t sector = fGeo->GetSector(iDet);
- Int_t chamber = fGeo->GetChamber(iDet);
- Int_t nRowMax = fGeo->GetRowMax(plane,chamber,sector);
- Int_t nColMax = fGeo->GetColMax(plane);
- Int_t nTimeTotal = fGeo->GetTimeTotal();
-
+ Int_t nRowMax = fGeo->GetPadPlane(iDet)->GetNrows();
+ Int_t nColMax = fGeo->GetPadPlane(iDet)->GetNcols();
+
// Loop through the pixels of one detector and add the signals
- digitsA = fSDigitsManager->GetDigits(iDet);
- digitsB = mergeSDigitsManager->GetDigits(iDet);
- digitsA->Expand();
- digitsB->Expand();
+ digitsA = (AliTRDarraySignal *) fSDigitsManager->GetSDigits(iDet);
+ digitsB = (AliTRDarraySignal *) mergeSDigitsManager->GetSDigits(iDet);
+ digitsA->Expand();
+ if (!digitsA->HasData()) continue;
+ digitsB->Expand();
+ if (!digitsB->HasData()) continue;
+
for (iDict = 0; iDict < kNDict; iDict++) {
- dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
- dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
- dictionaryA[iDict]->Expand();
+ dictionaryA[iDict] = (AliTRDarrayDictionary *) fSDigitsManager->GetDictionary(iDet,iDict);
+ dictionaryB[iDict] = (AliTRDarrayDictionary *) mergeSDigitsManager->GetDictionary(iDet,iDict);
+ dictionaryA[iDict]->Expand();
dictionaryB[iDict]->Expand();
}
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MergeSDigits -- ");
- printf("Merge detector %d of input no.%d.\n",iDet,iMerge);
- }
-
- for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
- for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
- for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
-
- // Add the amplitudes of the summable digits
- Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
- Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
- ampA += ampB;
- digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
-
- // Take only one track from each input
- Int_t track = dictionaryB[0]->GetDataUnchecked(iRow,iCol,iTime);
- if (iMerge < kNDict) {
- dictionaryA[iMerge]->SetDataUnchecked(iRow,iCol,iTime,track);
- }
-
- }
+ // Merge only detectors that contain a signal
+ Bool_t doMerge = kTRUE;
+ if (fMergeSignalOnly) {
+ if (digitsA->GetOverThreshold(0) == 0) {
+ doMerge = kFALSE;
}
}
-
+
+ if (doMerge) {
+
+ AliDebug(1,Form("Merge detector %d of input no.%d",iDet,iMerge+1));
+
+ for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
+ for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
+ for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
+
+ // Add the amplitudes of the summable digits
+ Float_t ampA = digitsA->GetData(iRow,iCol,iTime);
+ Float_t ampB = digitsB->GetData(iRow,iCol,iTime);
+ ampA += ampB;
+ digitsA->SetData(iRow,iCol,iTime,ampA);
+
+ // Add the mask to the track id if defined.
+ for (iDict = 0; iDict < kNDict; iDict++) {
+ Int_t trackB = dictionaryB[iDict]->GetData(iRow,iCol,iTime);
+ if ((fMasks) && (trackB > 0)) {
+ for (jDict = 0; jDict < kNDict; jDict++) {
+ Int_t trackA = dictionaryA[iDict]->GetData(iRow,iCol,iTime);
+ if (trackA == 0) {
+ trackA = trackB + fMasks[iMerge];
+ dictionaryA[iDict]->SetData(iRow,iCol,iTime,trackA);
+ } // if: track A == 0
+ } // for: jDict
+ } // if: fMasks and trackB > 0
+ } // for: iDict
+
+ } // for: iTime
+ } // for: iCol
+ } // for: iRow
+
+ } // if: doMerge
+
+ mergeSDigitsManager->RemoveDigits(iDet);
+ mergeSDigitsManager->RemoveDictionaries(iDet);
+
if (fCompress) {
- digitsA->Compress(1,0);
- digitsB->Compress(1,0);
- for (iDict = 0; iDict < kNDict; iDict++) {
- dictionaryA[iDict]->Compress(1,0);
- dictionaryB[iDict]->Compress(1,0);
+ digitsA->Compress(0);
+ for (iDict = 0; iDict < kNDict; iDict++) {
+ dictionaryA[iDict]->Compress();
}
}
+
+ } // for: detectors
+
+ // The next set of s-digits
+ mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(mergeSDigitsManager);
+
+ } // while: mergeDigitsManagers
+
+ return kTRUE;
- }
+}
- // The next set of s-digits
- mergeSDigitsManager = (AliTRDdigitsManager *)
- fSDigitsManagerList->After(mergeSDigitsManager);
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::ConvertSDigits()
+{
+ //
+ // Converts s-digits to normal digits
+ //
+ AliTRDarraySignal *digitsIn = 0x0;
+
+ if (!fSDigitsManager->HasSDigits()) {
+ AliError("No s-digits in digits manager");
+ return kFALSE;
}
+ // Loop through the detectors
+ for (Int_t det = 0; det < AliTRDgeometry::Ndet(); det++) {
+
+ // Get the merged s-digits (signals)
+ digitsIn = (AliTRDarraySignal *) fSDigitsManager->GetSDigits(det);
+ if (!digitsIn->HasData()) {
+ AliDebug(2,Form("No digits for det=%d",det));
+ continue;
+ }
+
+ // Convert the merged sdigits to digits
+ if (!Signal2ADC(det,digitsIn)) {
+ continue;
+ }
+
+ // Copy the dictionary information to the output array
+ if (!CopyDictionary(det)) {
+ continue;
+ }
+
+ // Delete
+ fSDigitsManager->RemoveDigits(det);
+ fSDigitsManager->RemoveDictionaries(det);
+
+ // Compress the arrays
+ CompressOutputArrays(det);
+
+ } // for: detector numbers
+
+
return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::SDigits2Digits()
+Bool_t AliTRDdigitizer::CopyDictionary(Int_t det)
{
//
- // Merges the input s-digits and converts them to normal digits
+ // Copies the dictionary information from the s-digits arrays
+ // to the output arrays
//
- if (!MergeSDigits()) return kFALSE;
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
- return ConvertSDigits();
+ AliDebug(1,Form("Start copying dictionaries for detector=%d",det));
+
+ const Int_t kNDict = AliTRDdigitsManager::kNDict;
+ AliTRDarrayDictionary *dictionaryIn[kNDict];
+ AliTRDarrayDictionary *dictionaryOut[kNDict];
+
+ Int_t nRowMax = fGeo->GetPadPlane(det)->GetNrows();
+ Int_t nColMax = fGeo->GetPadPlane(det)->GetNcols();
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ Int_t row = 0;
+ Int_t col = 0;
+ Int_t time = 0;
+ Int_t dict = 0;
+
+ for (dict = 0; dict < kNDict; dict++) {
+
+ dictionaryIn[dict] = (AliTRDarrayDictionary *) fSDigitsManager->GetDictionary(det,dict);
+ dictionaryIn[dict]->Expand();
+ dictionaryOut[dict] = (AliTRDarrayDictionary *) fDigitsManager->GetDictionary(det,dict);
+ dictionaryOut[dict]->Allocate(nRowMax,nColMax,nTimeTotal);
+
+ for (row = 0; row < nRowMax; row++) {
+ for (col = 0; col < nColMax; col++) {
+ for (time = 0; time < nTimeTotal; time++) {
+ Int_t track = dictionaryIn[dict]->GetData(row,col,time);
+ dictionaryOut[dict]->SetData(row,col,time,track);
+ } // for: time
+ } // for: col
+ } // for: row
+
+ } // for: dictionaries
+
+ return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector)
+void AliTRDdigitizer::CompressOutputArrays(Int_t det)
{
//
- // Checks whether a detector is enabled
+ // Compress the output arrays
//
- if ((fTRD->GetSensChamber() >= 0) &&
- (fTRD->GetSensChamber() != chamber)) return kFALSE;
- if ((fTRD->GetSensPlane() >= 0) &&
- (fTRD->GetSensPlane() != plane)) return kFALSE;
- if ( fTRD->GetSensSector() >= 0) {
- Int_t sens1 = fTRD->GetSensSector();
- Int_t sens2 = sens1 + fTRD->GetSensSectorRange();
- sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
- * AliTRDgeometry::Nsect();
- if (sens1 < sens2) {
- if ((sector < sens1) || (sector >= sens2)) return kFALSE;
+ const Int_t kNDict = AliTRDdigitsManager::kNDict;
+ AliTRDarrayDictionary *dictionary = 0x0;
+
+ if (fCompress) {
+
+ if (!fSDigits) {
+ AliTRDarrayADC *digits = 0x0;
+ digits = (AliTRDarrayADC *) fDigitsManager->GetDigits(det);
+ digits->Compress();
}
- else {
- if ((sector < sens1) && (sector >= sens2)) return kFALSE;
+
+ if (fSDigits) {
+ AliTRDarraySignal *digits = 0x0;
+ digits = (AliTRDarraySignal *) fDigitsManager->GetSDigits(det);
+ digits->Compress(0);
}
- }
- return kTRUE;
+ for (Int_t dict = 0; dict < kNDict; dict++) {
+ dictionary = (AliTRDarrayDictionary *) fDigitsManager->GetDictionary(det,dict);
+ dictionary->Compress();
+ }
+
+ }
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::WriteDigits()
+Bool_t AliTRDdigitizer::WriteDigits() const
{
//
// Writes out the TRD-digits and the dictionaries
//
+ // Write parameters
+ fRunLoader->CdGAFile();
+
// Store the digits and the dictionary in the tree
return fDigitsManager->WriteDigits();
}
//_____________________________________________________________________________
-Float_t AliTRDdigitizer::GetDiffusionL(Float_t vd, Float_t b)
+void AliTRDdigitizer::InitOutput(Int_t iEvent)
{
//
- // Returns the longitudinal diffusion coefficient for a given drift
- // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
- // The values are according to a GARFIELD simulation.
+ // Initializes the output branches
//
- const Int_t kNb = 5;
- Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
- Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
- Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
- Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
-
- Int_t ib = ((Int_t) (10 * (b - 0.15)));
- ib = TMath::Max( 0,ib);
- ib = TMath::Min(kNb,ib);
+ fEvent = iEvent;
+
+ if (!fRunLoader) {
+ AliError("Run Loader is NULL");
+ return;
+ }
- Float_t diff = p0[ib]
- + p1[ib] * vd
- + p2[ib] * vd*vd
- + p3[ib] * vd*vd*vd;
+ AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
+ if (!loader) {
+ AliError("Can not get TRD loader from Run Loader");
+ return;
+ }
- return diff;
+ TTree *tree = 0;
+
+ if (fSDigits) {
+ // If we produce SDigits
+ tree = loader->TreeS();
+ if (!tree) {
+ loader->MakeTree("S");
+ tree = loader->TreeS();
+ }
+ }
+ else {
+ // If we produce Digits
+ tree = loader->TreeD();
+ if (!tree) {
+ loader->MakeTree("D");
+ tree = loader->TreeD();
+ }
+ }
+ fDigitsManager->SetEvent(iEvent);
+ fDigitsManager->MakeBranch(tree);
}
-
+
//_____________________________________________________________________________
-Float_t AliTRDdigitizer::GetDiffusionT(Float_t vd, Float_t b)
+Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t absdriftlength
+ , Double_t &lRow, Double_t &lCol, Double_t &lTime)
{
//
- // Returns the transverse diffusion coefficient for a given drift
- // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
- // The values are according to a GARFIELD simulation.
+ // Applies the diffusion smearing to the position of a single electron.
+ // Depends on absolute drift length.
//
+
+ Float_t diffL = 0.0;
+ Float_t diffT = 0.0;
- const Int_t kNb = 5;
- Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
- Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
- Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
- Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
+ if (AliTRDCommonParam::Instance()->GetDiffCoeff(diffL,diffT,vdrift)) {
- Int_t ib = ((Int_t) (10 * (b - 0.15)));
- ib = TMath::Max( 0,ib);
- ib = TMath::Min(kNb,ib);
+ Float_t driftSqrt = TMath::Sqrt(absdriftlength);
+ Float_t sigmaT = driftSqrt * diffT;
+ Float_t sigmaL = driftSqrt * diffL;
+ lRow = gRandom->Gaus(lRow ,sigmaT);
+ lCol = gRandom->Gaus(lCol ,sigmaT * GetLorentzFactor(vdrift));
+ lTime = gRandom->Gaus(lTime,sigmaL * GetLorentzFactor(vdrift));
+
+ return 1;
- Float_t diff = p0[ib]
- + p1[ib] * vd
- + p2[ib] * vd*vd
- + p3[ib] * vd*vd*vd;
+ }
+ else {
+
+ return 0;
- return diff;
+ }
}
//_____________________________________________________________________________
-Float_t AliTRDdigitizer::GetOmegaTau(Float_t vd, Float_t b)
+Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
{
//
- // Returns omega*tau (tan(Lorentz-angle)) for a given drift velocity <vd>
- // and a B-field <b> for Xe/CO2 (15%).
- // The values are according to a GARFIELD simulation.
+ // Returns the Lorentz factor
//
- const Int_t kNb = 5;
- Float_t p0[kNb] = { 0.004810, 0.007412, 0.010252, 0.013409, 0.016888 };
- Float_t p1[kNb] = { 0.054875, 0.081534, 0.107333, 0.131983, 0.155455 };
- Float_t p2[kNb] = { -0.008682, -0.012896, -0.016987, -0.020880, -0.024623 };
- Float_t p3[kNb] = { 0.000155, 0.000238, 0.000330, 0.000428, 0.000541 };
+ Double_t omegaTau = AliTRDCommonParam::Instance()->GetOmegaTau(vd);
+ Double_t lorentzFactor = 1.0;
+ if (AliTRDCommonParam::Instance()->ExBOn()) {
+ lorentzFactor = 1.0 / (1.0 + omegaTau*omegaTau);
+ }
+
+ return lorentzFactor;
- Int_t ib = ((Int_t) (10 * (b - 0.15)));
- ib = TMath::Max( 0,ib);
- ib = TMath::Min(kNb,ib);
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t &lCol)
+{
+ //
+ // Applies E x B effects to the position of a single electron.
+ // Depends on signed drift length.
+ //
- Float_t alphaL = p0[ib]
- + p1[ib] * vd
- + p2[ib] * vd*vd
- + p3[ib] * vd*vd*vd;
+ lCol = lCol
+ + AliTRDCommonParam::Instance()->GetOmegaTau(vdrift)
+ * driftlength;
- return TMath::Tan(alphaL);
+ return 1;
}
+//_____________________________________________________________________________
+void AliTRDdigitizer::RunDigitalProcessing(AliTRDarrayADC *digits, Int_t det)
+{
+ //
+ // Run the digital processing in the TRAP
+ //
+
+ AliTRDfeeParam *feeParam = AliTRDfeeParam::Instance();
+
+ //Create and initialize the mcm object
+ AliTRDmcmSim* mcmfast = new AliTRDmcmSim();
+
+ //Call the methods in the mcm class using the temporary array as input
+ for(Int_t rob = 0; rob < digits->GetNrow() / 4; rob++)
+ {
+ for(Int_t mcm = 0; mcm < 16; mcm++)
+ {
+ mcmfast->Init(det, rob, mcm);
+ mcmfast->SetData(digits);
+ mcmfast->Filter();
+ if (feeParam->GetTracklet())
+ mcmfast->Tracklet();
+ mcmfast->ZSMapping();
+ mcmfast->WriteData(digits);
+ }
+ }
+
+ delete mcmfast;
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff