* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-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
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
// 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 //
// 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). //
-// To produce digits from a root-file with TRD-hits use the //
-// slowDigitsCreate.C macro. //
// //
///////////////////////////////////////////////////////////////////////////////
#include <TTree.h>
#include <TFile.h>
#include <TF1.h>
+#include <TList.h>
+#include <TTask.h>
+#include <TGeoManager.h>
#include "AliRun.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 "AliTRDsegmentArray.h"
#include "AliTRDdigitsManager.h"
#include "AliTRDgeometry.h"
+#include "AliTRDpadPlane.h"
+#include "AliTRDcalibDB.h"
+#include "AliTRDSimParam.h"
+#include "AliTRDCommonParam.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)
+ ,fSDigitsScale(0.0)
+ ,fMergeSignalOnly(kFALSE)
+ ,fDiffLastVdrift(0)
+ ,fDiffusionT(0.0)
+ ,fDiffusionL(0.0)
+ ,fOmegaTau(0.0)
+ ,fLorentzFactor(0.0)
+ ,fTimeLastVdrift(0)
+ ,fTimeStruct1(0)
+ ,fTimeStruct2(0)
+ ,fVDlo(0)
+ ,fVDhi(0)
{
//
// AliTRDdigitizer default constructor
//
+
+ Init();
- fInputFile = NULL;
- fDigits = NULL;
- fTRD = NULL;
- fGeo = NULL;
- fPRF = NULL;
- fPRFsmp = NULL;
- fTRF = NULL;
- fTRFint = 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;
-
- fPRFbin = 0;
- fPRFlo = 0.0;
- fPRFhi = 0.0;
- fPRFwid = 0.0;
- fPRFpad = 0;
- fTRFbin = 0;
- fTRFlo = 0.0;
- fTRFhi = 0.0;
- fTRFwid = 0.0;
-
- fCompress = kTRUE;
- fVerbose = 1;
+}
+
+//_____________________________________________________________________________
+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)
+ ,fSDigitsScale(0.0)
+ ,fMergeSignalOnly(kFALSE)
+ ,fDiffLastVdrift(0)
+ ,fDiffusionT(0.0)
+ ,fDiffusionL(0.0)
+ ,fOmegaTau(0.0)
+ ,fLorentzFactor(0.0)
+ ,fTimeLastVdrift(0)
+ ,fTimeStruct1(0)
+ ,fTimeStruct2(0)
+ ,fVDlo(0)
+ ,fVDhi(0)
+{
+ //
+ // AliTRDdigitizer constructor
+ //
+
+ 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)
+ ,fSDigitsScale(0.0)
+ ,fMergeSignalOnly(kFALSE)
+ ,fDiffLastVdrift(0)
+ ,fDiffusionT(0.0)
+ ,fDiffusionL(0.0)
+ ,fOmegaTau(0.0)
+ ,fLorentzFactor(0.0)
+ ,fTimeLastVdrift(0)
+ ,fTimeStruct1(0)
+ ,fTimeStruct2(0)
+ ,fVDlo(0)
+ ,fVDhi(0)
{
//
- // AliTRDdigitizer default constructor
+ // AliTRDdigitizer constructor
//
- fInputFile = NULL;
- fDigits = NULL;
- fTRD = NULL;
- fGeo = NULL;
- fPRF = NULL;
- fPRFsmp = NULL;
- fTRF = NULL;
- fTRFint = NULL;
+ Init();
- fEvent = 0;
+}
- fCompress = kTRUE;
- fVerbose = 1;
+//_____________________________________________________________________________
+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)
+ ,fSDigitsScale(0.0)
+ ,fMergeSignalOnly(kFALSE)
+ ,fDiffLastVdrift(0)
+ ,fDiffusionT(0.0)
+ ,fDiffusionL(0.0)
+ ,fOmegaTau(0.0)
+ ,fLorentzFactor(0.0)
+ ,fTimeLastVdrift(0)
+ ,fTimeStruct1(0)
+ ,fTimeStruct2(0)
+ ,fVDlo(0)
+ ,fVDhi(0)
+{
+ //
+ // AliTRDdigitizer constructor
+ //
Init();
}
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::Init()
+{
+ //
+ // Initialize the digitizer with default values
+ //
+
+ fRunLoader = 0;
+ fDigitsManager = 0;
+ fSDigitsManager = 0;
+ fSDigitsManagerList = 0;
+ fTRD = 0;
+ fGeo = 0;
+
+ fEvent = 0;
+ fMasks = 0;
+ fCompress = kTRUE;
+ fSDigits = kFALSE;
+ fSDigitsScale = 100.0;
+ fMergeSignalOnly = kFALSE;
+
+ fTimeLastVdrift = -1;
+ fTimeStruct1 = 0;
+ fTimeStruct2 = 0;
+ fVDlo = 0;
+ fVDhi = 0;
+
+ fDiffLastVdrift = -1;
+ fDiffusionT = 0.0;
+ fDiffusionL = 0.0;
+ fLorentzFactor = 0.0;
+
+ 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)
+ ,fSDigitsScale(d.fSDigitsScale)
+ ,fMergeSignalOnly(d.fMergeSignalOnly)
+ ,fDiffLastVdrift(-1)
+ ,fDiffusionT(0.0)
+ ,fDiffusionL(0.0)
+ ,fOmegaTau(0.0)
+ ,fLorentzFactor(0.0)
+ ,fTimeLastVdrift(-1)
+ ,fTimeStruct1(0)
+ ,fTimeStruct2(0)
+ ,fVDlo(0)
+ ,fVDhi(0)
{
//
// AliTRDdigitizer copy constructor
//
- ((AliTRDdigitizer &) d).Copy(*this);
+ // Do not copy timestructs, just invalidate lastvdrift.
+ // Next time they are requested, they get recalculated
+ if (((AliTRDdigitizer &) d).fTimeStruct1) {
+ delete [] ((AliTRDdigitizer &) d).fTimeStruct1;
+ ((AliTRDdigitizer &) d).fTimeStruct1 = 0;
+ }
+ if (((AliTRDdigitizer &) d).fTimeStruct2) {
+ delete [] ((AliTRDdigitizer &) d).fTimeStruct2;
+ ((AliTRDdigitizer &) d).fTimeStruct2 = 0;
+ }
}
// AliTRDdigitizer destructor
//
- if (fInputFile) {
- fInputFile->Close();
- delete fInputFile;
+ if (fDigitsManager) {
+ delete fDigitsManager;
+ fDigitsManager = 0;
+ }
+
+ if (fDigitsManager) {
+ delete fSDigitsManager;
+ fSDigitsManager = 0;
}
- if (fDigits) {
- delete fDigits;
+ if (fSDigitsManagerList) {
+ fSDigitsManagerList->Delete();
+ delete fSDigitsManagerList;
+ fSDigitsManagerList = 0;
}
- if (fPRF) delete fPRF;
- if (fTRF) delete fTRF;
+ if (fMasks) {
+ delete [] fMasks;
+ fMasks = 0;
+ }
+
+ if (fTimeStruct1) {
+ delete [] fTimeStruct1;
+ fTimeStruct1 = 0;
+ }
+
+ if (fTimeStruct2) {
+ delete [] fTimeStruct2;
+ fTimeStruct2 = 0;
+ }
+
+ if (fGeo) {
+ delete fGeo;
+ fGeo = 0;
+ }
}
//
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).fDigits = NULL;
- ((AliTRDdigitizer &) d).fTRD = NULL;
- ((AliTRDdigitizer &) d).fGeo = NULL;
-
- ((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).fPRFOn = fPRFOn;
- ((AliTRDdigitizer &) d).fTRFOn = fTRFOn;
-
- ((AliTRDdigitizer &) d).fCompress = fCompress;
- ((AliTRDdigitizer &) d).fVerbose = fVerbose;
-
- fPRF->Copy(*((AliTRDdigitizer &) d).fPRF);
- fTRF->Copy(*((AliTRDdigitizer &) d).fTRF);
-
- ((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).fTRFint) delete ((AliTRDdigitizer &) d).fTRFint;
- ((AliTRDdigitizer &) d).fTRFint = new Float_t[fTRFbin];
- for (iBin = 0; iBin < fTRFbin; iBin++) {
- ((AliTRDdigitizer &) d).fTRFint[iBin] = fTRFint[iBin];
- }
+ ((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).fMasks = 0;
+ ((AliTRDdigitizer &) d).fCompress = fCompress;
+ ((AliTRDdigitizer &) d).fSDigits = fSDigits;
+ ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
+ ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
+
+ AliTRDdigitizer& target = (AliTRDdigitizer &) d;
+
+ // Do not copy timestructs, just invalidate lastvdrift.
+ // Next time they are requested, they get recalculated
+ if (target.fTimeStruct1) {
+ delete [] target.fTimeStruct1;
+ target.fTimeStruct1 = 0;
+ }
+ if (target.fTimeStruct2) {
+ delete [] target.fTimeStruct2;
+ target.fTimeStruct2 = 0;
+ }
+ target.fTimeLastVdrift = -1;
}
//_____________________________________________________________________________
-Int_t AliTRDdigitizer::Diffusion(Float_t driftlength, Float_t *xyz)
+void AliTRDdigitizer::Exec(Option_t *option)
{
//
- // Applies the diffusion smearing to the position of a single electron
+ // Executes the merging
//
- 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);
+ Int_t iInput;
- return 1;
+ AliTRDdigitsManager *sdigitsManager;
-}
+ 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;
+
+ if (gAlice) {
+ AliDebug(1,"AliRun object found on file.");
+ }
+ else {
+ inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
+ inrl->LoadgAlice();
+ gAlice = inrl->GetAliRun();
+ if (!gAlice) {
+ AliError("Could not find AliRun object.")
+ return;
+ }
+ }
+
+ Int_t nInput = fManager->GetNinputs();
+ fMasks = new Int_t[nInput];
+ for (iInput = 0; iInput < nInput; iInput++) {
+ fMasks[iInput] = fManager->GetMask(iInput);
+ }
-//_____________________________________________________________________________
-Int_t AliTRDdigitizer::ExB(Float_t driftlength, Float_t *xyz)
-{
//
- // Applies E x B effects to the position of a single electron
+ // Initialization
//
- xyz[0] = xyz[0];
- xyz[1] = xyz[1] + fOmegaTau * driftlength;
- xyz[2] = xyz[2];
-
- return 1;
+ AliRunLoader *orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
-}
+ if (InitDetector()) {
-//_____________________________________________________________________________
-Int_t AliTRDdigitizer::PadResponse(Float_t signal, Float_t dist, Float_t *pad)
-{
- //
- // Applies the pad response
- //
+ AliLoader *ogime = orl->GetLoader("TRDLoader");
- Int_t iBin = ((Int_t) (( - dist - fPRFlo) / fPRFwid));
+ 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();
+ }
+ }
- Int_t iBin0 = iBin - fPRFpad;
- Int_t iBin1 = iBin;
- Int_t iBin2 = iBin + fPRFpad;
+ MakeBranch(tree);
- if ((iBin0 >= 0) && (iBin2 < fPRFbin)) {
+ }
+
+ for (iInput = 0; iInput < nInput; iInput++) {
- pad[0] = signal * fPRFsmp[iBin0];
- pad[1] = signal * fPRFsmp[iBin1];
- pad[2] = signal * fPRFsmp[iBin2];
+ AliDebug(1,Form("Add input stream %d",iInput));
- return 1;
+ // Check if the input tree exists
+ inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
+ AliLoader *gime = inrl->GetLoader("TRDLoader");
- }
- else {
+ 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();
+ }
+ sdigitsManager->ReadDigits(gimme->TreeS());
- return 0;
+ // Add the s-digits to the input list
+ AddSDigitsManager(sdigitsManager);
}
-}
+ // Convert the s-digits to normal digits
+ AliDebug(1,"Do the conversion");
+ SDigits2Digits();
-//_____________________________________________________________________________
-Float_t AliTRDdigitizer::TimeResponse(Float_t time)
-{
- //
- // Applies the preamp shaper time response
- //
+ // Store the digits
+ AliDebug(1,"Write the digits");
+ fDigitsManager->WriteDigits();
- Int_t iBin = ((Int_t) ((time - fTRFlo) / fTRFwid));
- if ((iBin >= 0) && (iBin < fTRFbin)) {
- return fTRFint[iBin];
- }
- else {
- return 0.0;
- }
+ // Write parameters
+ orl->CdGAFile();
-}
+ AliDebug(1,"Done");
-//_____________________________________________________________________________
-void AliTRDdigitizer::Init()
-{
- //
- // Initializes the digitization procedure with standard values
- //
-
- // The default parameter for the digitization
- fGasGain = 8.0E3;
- fNoise = 3000.;
- fChipGain = 10.;
- fADCoutRange = 255.;
- fADCinRange = 2000.;
- fADCthreshold = 1;
-
- // Transverse and longitudinal diffusion coefficients (Xe/Isobutane)
- fDiffusionOn = 1;
- fDiffusionT = 0.060;
- fDiffusionL = 0.017;
-
- // Propability for electron attachment
- fElAttachOn = 0;
- fElAttachProp = 0.0;
-
- // E x B effects
- fExBOn = 0;
- // omega * tau. (tau ~ 12 * 10^-12, B = 0.2T)
- fOmegaTau = 17.6 * 12.0 * 0.2 * 0.01;
-
- // The pad response function
- fPRFOn = 1;
- fPRFlo = -3.0;
- fPRFhi = 3.0;
- fPRFbin = 1200;
- fPRFwid = (fPRFhi - fPRFlo) / ((Float_t) fPRFbin);
- fPRFpad = ((Int_t) (1.0 / fPRFwid));
- fPRF = new TF1("PRF","[0]*([1]+exp(-x*x/(2.0*[2])))",fPRFlo,fPRFhi);
- fPRF->SetParameter(0, 0.8872);
- fPRF->SetParameter(1,-0.00573);
- fPRF->SetParameter(2, 0.454 * 0.454);
-
- // The drift velocity (cm / mus)
- fDriftVelocity = 1.0;
-
- // The time response function
- fTRFOn = 1;
- Float_t loTRF = -200.0;
- Float_t hiTRF = 1000.0;
- fTRF = new TF1("TRF",TRFlandau,loTRF,hiTRF,3);
- fTRF->SetParameter(0, 1.0 / 24.24249);
- fTRF->SetParameter(1, 0.0);
- fTRF->SetParameter(2, 25.0);
- fTRFbin = 1200;
- fTRFlo = loTRF * fDriftVelocity / 1000.0;
- fTRFhi = hiTRF * fDriftVelocity / 1000.0;
- fTRFwid = (fTRFhi - fTRFlo) / ((Float_t) fTRFbin);
+ DeleteSDigitsManager();
}
//_____________________________________________________________________________
-void AliTRDdigitizer::IntegrateTRF()
+Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
{
//
- // Integrates the time response function over the time bin size
+ // Opens a ROOT-file with TRD-hits and reads in the hit-tree
//
+ // Connect the AliRoot file containing Geometry, Kine, and Hits
+ //
- if (fTRFint) delete fTRFint;
- fTRFint = new Float_t[fTRFbin];
- Float_t hiTRF = fTRFhi / fDriftVelocity * 1000.0;
- Float_t loTRF = fTRFlo / fDriftVelocity * 1000.0;
- Float_t timeBin = fGeo->GetTimeBinSize() / fDriftVelocity * 1000.0;
- Float_t binWidth = (hiTRF - loTRF) / ((Float_t) fTRFbin);
- for (Int_t iBin = 0; iBin < fTRFbin; iBin++) {
- Float_t bin = iBin * binWidth + loTRF - 0.5 * timeBin;
- fTRFint[iBin] = fTRF->Integral(bin,bin + timeBin);
- }
+ 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;
+ }
-//_____________________________________________________________________________
-void AliTRDdigitizer::SamplePRF()
-{
- //
- // Samples the pad response function
- //
+ fEvent = nEvent;
- if (fPRFsmp) delete fPRFsmp;
- fPRFsmp = new Float_t[fPRFbin];
- for (Int_t iBin = 0; iBin < fPRFbin; iBin++) {
- Float_t bin = (((Float_t ) iBin) + 0.5) * fPRFwid + fPRFlo;
- fPRFsmp[iBin] = TMath::Max(fPRF->Eval(bin),0.0);
+ 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) {
- 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 {
- 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) {
- 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()) {
+ 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;
}
-
- return InitDetector();
}
//
// 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::Open -- ");
- 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();
- printf("AliTRDdigitizer::Open -- ");
- printf("Geometry version %d\n",fGeo->IsVersion());
+ fGeo = new AliTRDgeometry();
+
+ // Create a digits manager
+ delete fDigitsManager;
+ fDigitsManager = new AliTRDdigitsManager();
+ fDigitsManager->SetSDigits(fSDigits);
+ fDigitsManager->CreateArrays();
+ fDigitsManager->SetEvent(fEvent);
+
+ // The list for the input s-digits manager to be merged
+ if (fSDigitsManagerList) {
+ fSDigitsManagerList->Delete();
+ }
+ else {
+ fSDigitsManagerList = new TList();
+ }
return kTRUE;
}
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::MakeBranch(TTree *tree) const
+{
+ //
+ // Create the branches for the digits array
+ //
+
+ return fDigitsManager->MakeBranch(tree);
+
+}
+
//_____________________________________________________________________________
Bool_t AliTRDdigitizer::MakeDigits()
{
//
- // Loops through the TRD-hits and creates the digits.
+ // Creates digits.
//
///////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////
// Converts number of electrons to fC
- const Float_t kEl2fC = 1.602E-19 * 1.0E15;
+ const Double_t kEl2fC = 1.602e-19 * 1.0e15;
///////////////////////////////////////////////////////////////
// Number of pads included in the pad response
- const Int_t kNpad = 3;
+ const Int_t kNpad = 3;
// Number of track dictionary arrays
- const Int_t kNDict = AliTRDdigitsManager::kNDict;
-
- 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;
-
- AliTRDdataArrayF *signals = 0;
- AliTRDdataArrayI *digits = 0;
+ const Int_t kNDict = AliTRDdigitsManager::kNDict;
+
+ // 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 iRow;
+ Int_t iCol;
+ Int_t iTime;
+ Int_t 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 timeBinTRFend = 1;
+
+ Double_t pos[3];
+ Double_t loc[3];
+ Double_t padSignal[kNpad];
+ Double_t signalOld[kNpad];
+
+ AliTRDdataArrayF *signals = 0;
+ AliTRDdataArrayI *digits = 0;
AliTRDdataArrayI *dictionary[kNDict];
- // Create a digits manager
- fDigits = new AliTRDdigitsManager();
+ AliTRDpadPlane *padPlane = 0;
- // Create a container for the amplitudes
- AliTRDsegmentArray *signalsArray
- = new AliTRDsegmentArray("AliTRDdataArrayF",AliTRDgeometry::Ndet());
+ AliTRDCalROC *calVdriftROC = 0;
+ Float_t calVdriftDetValue = 0.0;
+ AliTRDCalROC *calT0ROC = 0;
+ Float_t calT0DetValue = 0.0;
+ AliTRDCalROC *calGainFactorROC = 0;
+ Float_t calGainFactorDetValue = 0.0;
+
+ if (!gGeoManager) {
+ AliFatal("No geometry manager!");
+ }
if (!fGeo) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("No geometry defined\n");
+ AliError("No geometry defined");
return kFALSE;
}
+ fGeo->ReadGeoMatrices();
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Start creating digits.\n");
- if (fVerbose > 0) this->Dump();
-
- // The Lorentz factor
- if (fExBOn) {
- fLorentzFactor = 1.0 / (1.0 + fOmegaTau*fOmegaTau);
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ if (!simParam) {
+ AliFatal("Could not get simulation parameters");
+ return kFALSE;
}
- else {
- fLorentzFactor = 1.0;
+
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ if (!commonParam) {
+ AliFatal("Could not get common parameterss");
+ return kFALSE;
}
- // Create the sampled PRF
- SamplePRF();
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return kFALSE;
+ }
- // Create the integrated TRF
- IntegrateTRF();
+ AliDebug(1,"Start creating digits");
+
+ // Create a container for the amplitudes
+ AliTRDsegmentArray *signalsArray = new AliTRDsegmentArray("AliTRDdataArrayF"
+ ,AliTRDgeometry::Ndet());
- // Get the pointer to the hit tree
- TTree *HitTree = gAlice->TreeH();
+ 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 nTrack = (Int_t) HitTree->GetEntries();
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Found %d primary particles\n",nTrack);
+ Int_t nTrack = (Int_t) hitTree->GetEntries();
+ AliDebug(1,Form("Found %d primary particles",nTrack));
+ AliDebug(1,Form("Sampling = %.0fMHz" ,commonParam->GetSamplingFrequency()));
+ AliDebug(1,Form("Gain = %d" ,((Int_t) simParam->GetGasGain())));
+ AliDebug(1,Form("Noise = %d" ,((Int_t) simParam->GetNoise())));
+ if (simParam->TimeStructOn()) {
+ AliDebug(1,"Time Structure of drift cells implemented.");
}
+ else {
+ AliDebug(1,"Constant drift velocity in drift cells.");
+ }
+ if (simParam->TRFOn()) {
+ timeBinTRFend = ((Int_t) (simParam->GetTRFhi()
+ * commonParam->GetSamplingFrequency())) - 1;
+ AliDebug(1,Form("Sample the TRF up to bin %d",timeBinTRFend));
+ }
+
+ // Get the detector wise calibration objects
+ const AliTRDCalDet *calVdriftDet = calibration->GetVdriftDet();
+ const AliTRDCalDet *calT0Det = calibration->GetT0Det();
+ const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet();
- Int_t detectorOld = -1;
- Int_t countHits = 0;
+ Int_t detectorOld = -1;
+ Int_t countHits = 0;
+
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+ Float_t samplingRate = commonParam->GetSamplingFrequency();
+ Float_t elAttachProp = simParam->GetElAttachProp() / 100.0;
// Loop through all entries in the tree
for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
gAlice->ResetHits();
- nBytes += HitTree->GetEvent(iTrack);
-
- // 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);
- }
-
- // Loop through the TRD hits
- for (Int_t iHit = 0; iHit < nHit; iHit++) {
+ nBytes += hitTree->GetEvent(iTrack);
+ // Loop through the TRD hits
+ Int_t iHit = 0;
+ AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
+ while (hit) {
+
countHits++;
+ iHit++;
- AliTRDhit *hit = (AliTRDhit *) fTRD->Hits()->UncheckedAt(iHit);
- Float_t pos[3];
- pos[0] = hit->X();
- pos[1] = hit->Y();
- pos[2] = hit->Z();
Float_t q = hit->GetCharge();
+ // Don't analyze test hits
+ if (((Int_t) q) == 0) {
+ hit = (AliTRDhit *) fTRD->NextHit();
+ continue;
+ }
+
+ pos[0] = hit->X();
+ pos[1] = hit->Y();
+ pos[2] = hit->Z();
Int_t track = hit->Track();
Int_t detector = hit->GetDetector();
+ Float_t hittime = hit->GetTime();
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();
- 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();
-
- 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("row0 = %f, col0 = %f, time0 = %f\n"
- ,row0,col0,time0);
- printf("rowPadSize = %f, colPadSize = %f, timeBinSize = %f\n"
- ,rowPadSize,colPadSize,timeBinSize);
+ padPlane = fGeo->GetPadPlane(plane,chamber);
+ Float_t row0 = padPlane->GetRow0ROC();
+ Int_t nRowMax = padPlane->GetNrows();
+ Int_t nColMax = padPlane->GetNcols();
+ Int_t inDrift = 1;
+
+ // Find the current volume with the geo manager
+ gGeoManager->SetCurrentPoint(pos);
+ gGeoManager->FindNode();
+ if (strstr(gGeoManager->GetPath(),"/UK")) {
+ inDrift = 0;
}
-
- // Don't analyze test hits with amplitude 0.
- if (((Int_t) q) == 0) continue;
if (detector != detectorOld) {
- 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,nTimeMax);
+ 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] = fDigits->GetDictionary(detector,iDict);
+ dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
if (dictionary[iDict]->GetNtime() == 0) {
- dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeMax);
+ dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
}
else {
if (fCompress) dictionary[iDict]->Expand();
- }
+ }
}
- if (fVerbose > 1) printf("done\n");
+
+ // Get the calibration objects
+ calVdriftROC = calibration->GetVdriftROC(detector);
+ calVdriftDetValue = calVdriftDet->GetValue(detector);
+ calT0ROC = calibration->GetT0ROC(detector);
+ calT0DetValue = calT0Det->GetValue(detector);
+
detectorOld = detector;
- }
- // Rotate the sectors on top of each other
- Float_t rot[3];
- fGeo->Rotate(detector,pos,rot);
+ }
- // The driftlength
- Float_t driftlength = time0 - rot[0];
- if ((driftlength < 0) ||
- (driftlength > AliTRDgeometry::DrThick())) continue;
- Float_t driftlengthL = driftlength;
- if (fExBOn) driftlengthL /= TMath::Sqrt(fLorentzFactor);
+ // 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;
+ }
+
+ // 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())) {
+ hit = (AliTRDhit *) fTRD->NextHit();
+ continue;
+ }
+ if ((driftlength < kDrMin) ||
+ (driftlength > kDrMax)) {
+ hit = (AliTRDhit *) fTRD->NextHit();
+ continue;
+ }
+ }
- // The hit position in pad coordinates (center pad)
+ // Get row and col of unsmeared electron to retrieve drift velocity
// The pad row (z-direction)
- Int_t rowH = (Int_t) ((rot[2] - row0) / rowPadSize);
- // The pad column (rphi-direction)
- Int_t colH = (Int_t) ((rot[1] - col0) / colPadSize);
- // The time bucket
- Int_t timeH = (Int_t) (driftlength / timeBinSize);
- if (fVerbose > 1) {
- printf("rowH = %d, colH = %d, timeH = %d\n"
- ,rowH,colH,timeH);
+ Int_t rowE = padPlane->GetPadRowNumberROC(loc[1]);
+ if (rowE < 0) {
+ hit = (AliTRDhit *) fTRD->NextHit();
+ continue;
+ }
+ 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) {
+ hit = (AliTRDhit *) fTRD->NextHit();
+ continue;
+ }
+ Double_t colOffset = padPlane->GetPadColOffset(colE,loc[0]+offsetTilt);
+
+ Float_t driftvelocity = calVdriftDetValue * calVdriftROC->GetValue(colE,rowE);
+
+ // Normalized drift length
+ Double_t absdriftlength = TMath::Abs(driftlength);
+ if (commonParam->ExBOn()) {
+ absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
}
// Loop over all electrons of this hit
Int_t nEl = ((Int_t) TMath::Abs(q));
for (Int_t iEl = 0; iEl < nEl; iEl++) {
- Float_t xyz[3];
- xyz[0] = rot[0];
- xyz[1] = rot[1];
- xyz[2] = rot[2];
+ // 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), meaming 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 (fElAttachOn) {
- if (gRandom->Rndm() < (driftlengthL * fElAttachProp / 100.))
+ if (simParam->ElAttachOn()) {
+ if (gRandom->Rndm() < (absdriftlength * elAttachProp)) {
continue;
+ }
}
-
+
// Apply the diffusion smearing
- if (fDiffusionOn) {
- if (!(Diffusion(driftlengthL,xyz))) continue;
- }
+ if (simParam->DiffusionOn()) {
+ if (!(Diffusion(driftvelocity,absdriftlength,locR,locC,locT))) {
+ continue;
+ }
+ }
- // Apply E x B effects
- if (fExBOn) {
- if (!(ExB(driftlength,xyz))) continue;
- }
+ // Apply E x B effects (depends on drift direction)
+ if (commonParam->ExBOn()) {
+ if (!(ExB(driftvelocity,driftlength,locC))) {
+ continue;
+ }
+ }
- // The electron position
+ // The electron position after diffusion and ExB in pad coordinates.
// The pad row (z-direction)
- Int_t rowE = (Int_t) ((xyz[2] - row0) / rowPadSize);
- // The pad column (rphi-direction)
- Int_t colE = (Int_t) ((xyz[1] - col0) / colPadSize);
- // The time bucket
- Int_t timeE = (Int_t) ((time0 - xyz[0]) / timeBinSize);
+ rowE = padPlane->GetPadRowNumberROC(locR);
+ if (rowE < 0) continue;
+ rowOffset = padPlane->GetPadRowOffsetROC(rowE,locR);
- if (( rowE < 0) || ( rowE >= nRowMax)) continue;
- if (( colE < 0) || ( colE >= nColMax)) continue;
- if ((timeE < 0) || (timeE >= nTimeMax)) continue;
+ // 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 + simParam->GetAnodeWireOffset();
+ zz -= ((Int_t)(2 * zz)) / 2.0;
+ if (zz > 0.25) {
+ zz = 0.5 - zz;
+ }
+ // Use drift time map (GARFIELD)
+ drifttime = TimeStruct(driftvelocity,0.5*kAmWidth-1.0*locT,zz)
+ + hittime;
+ }
+ else {
+ // Use constant drift velocity
+ drifttime = -1.0 * locT / driftvelocity
+ + hittime;
+ }
// Apply the gas gain including fluctuations
- Float_t ggRndm = 0.0;
+ Double_t ggRndm = 0.0;
do {
ggRndm = gRandom->Rndm();
} while (ggRndm <= 0);
- Int_t signal = (Int_t) (-fGasGain * TMath::Log(ggRndm));
-
- if (fVerbose > 2) {
- printf(" electron no. %d, signal = %d\n",iEl,signal);
- printf(" rowE = %d, colE = %d, timeE = %d\n"
- ,rowE,colE,timeE);
- }
+ Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm));
// Apply the pad response
- Float_t padSignal[kNpad];
- if (fPRFOn) {
+ if (simParam->PRFOn()) {
// 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)
- / colPadSize;
- if (!(PadResponse(signal,dist,padSignal))) continue;
+ Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
+ / padPlane->GetColSize(colE);
+ // This is still the fixed parametrization, i.e. not dependent on
+ // calibration values !!!!
+ if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue;
}
- else {
+ else {
padSignal[0] = 0.0;
padSignal[1] = signal;
padSignal[2] = 0.0;
- }
+ }
- // The distance of the position to the beginning of the timebin
- Float_t timeOffset = (time0 - timeE * timeBinSize) - xyz[0];
- Int_t timeTRDbeg = 0;
- Int_t timeTRDend = 1;
- if (fTRFOn) {
- timeTRDbeg = 2;
- timeTRDend = 11;
+ // The time bin (always positive), with t0 distortion
+ Double_t timeBinIdeal = drifttime * samplingRate + t0;
+ // Protection
+ if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) {
+ timeBinIdeal = 2 * nTimeTotal;
}
- for (Int_t iTimeBin = TMath::Max(timeE - timeTRDbeg, 0)
- ; iTimeBin < TMath::Min(timeE + timeTRDend,nTimeMax)
- ; iTimeBin++) {
-
- // Apply the time response
- Float_t timeResponse = 1.0;
- if (fTRFOn) {
- Float_t time = (iTimeBin - timeE) * timeBinSize + timeOffset;
- timeResponse = TimeResponse(time);
- }
+ 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);
+ }
- // Add the signals
- Float_t signalOld[kNpad] = { 0.0, 0.0, 0.0 };
- for (iPad = 0; iPad < kNpad; iPad++) {
- Int_t colPos = colE + iPad - 1;
- if (colPos < 0) continue;
- if (colPos >= nColMax) break;
- signalOld[iPad] = signals->GetData(rowE,colPos,iTimeBin);
- signalOld[iPad] += padSignal[iPad] * timeResponse;
- signals->SetData(rowE,colPos,iTimeBin,signalOld[iPad]);
- }
- if (fVerbose > 3) {
- printf(" iTimeBin = %d, timeResponse = %f\n"
- ,iTimeBin,timeResponse);
- printf(" pad-signal = %f, %f, %f\n"
- ,signalOld[0],signalOld[1],signalOld[2]);
- }
+ signalOld[0] = 0.0;
+ signalOld[1] = 0.0;
+ signalOld[2] = 0.0;
- // Store the track index in the dictionary
- // Note: We store index+1 in order to allow the array to be compressed
- //for (iDict = 0; iDict < kNDict; iDict++) {
- // Int_t oldTrack = dictionary[iDict]->GetData(rowE,colE,timeE);
- // if (oldTrack == track+1) break;
- // //if (oldTrack == -1) break;
- // if (oldTrack == 0) {
- // dictionary[iDict]->SetData(rowE,colE,timeE,track+1);
- // if (fVerbose > 3) {
- // printf(" track index = %d\n",track);
- // }
- // break;
- // }
- //}
for (iPad = 0; iPad < kNpad; iPad++) {
+
Int_t colPos = colE + iPad - 1;
if (colPos < 0) continue;
if (colPos >= nColMax) break;
- if (signals->GetData(rowE,colPos,iTimeBin) > 0) {
+
+ // Add the signals
+ Int_t iCurrentTimeBin = iTimeBin;
+ signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
+ if (colPos != colE) {
+ signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk);
+ }
+ else {
+ 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]->GetData(rowE,colPos,iTimeBin);
+ Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
+ ,colPos
+ ,iCurrentTimeBin);
if (oldTrack == track+1) break;
- //if (oldTrack == -1) break;
if (oldTrack == 0) {
- dictionary[iDict]->SetData(rowE,colPos,iTimeBin,track+1);
- if (fVerbose > 3) {
- printf(" track index = %d\n",track);
- }
+ dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
break;
}
}
}
- }
- if ((fVerbose > 1) && (iDict == kNDict)) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("More than three tracks for one digit!\n");
- }
- }
+ } // Loop: pads
- }
+ } // Loop: time bins
- }
+ } // Loop: electrons of a single hit
+
+ hit = (AliTRDhit *) fTRD->NextHit();
+
+ } // Loop: hits of one primary track
+
+ } // Loop: primary tracks
+
+ AliDebug(1,Form("Finished analyzing %d hits",countHits));
- } // All hits finished
+ //____________________________________________________________________
+ //
+ // Create (s)digits
+ //____________________________________________________________________
+ //
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Finished analyzing %d hits\n",countHits);
+ // The coupling factor
+ Double_t coupling = simParam->GetPadCoupling()
+ * simParam->GetTimeCoupling();
+
+ // The conversion factor
+ Double_t convert = kEl2fC
+ * simParam->GetChipGain();
// Loop through all chambers to finalize the digits
- for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
+ Int_t iDetBeg = 0;
+ Int_t iDetEnd = AliTRDgeometry::Ndet();
+ for (Int_t iDet = iDetBeg; iDet < iDetEnd; 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 nTimeMax = fGeo->GetTimeMax();
-
- //if (!(CheckDetector(plane,chamber,sector))) continue;
- if (fVerbose > 0) {
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Digitization for chamber %d\n",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);
+
+ Double_t *inADC = new Double_t[nTimeTotal];
+ Double_t *outADC = new Double_t[nTimeTotal];
// Add a container for the digits of this detector
- digits = fDigits->GetDigits(iDet);
+ digits = fDigitsManager->GetDigits(iDet);
// Allocate memory space for the digits buffer
- digits->Allocate(nRowMax,nColMax,nTimeMax);
-
+ if (digits->GetNtime() == 0) {
+ digits->Allocate(nRowMax,nColMax,nTimeTotal);
+ }
+
// Get the signal container
signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
if (signals->GetNtime() == 0) {
// Create missing containers
- signals->Allocate(nRowMax,nColMax,nTimeMax);
+ signals->Allocate(nRowMax,nColMax,nTimeTotal);
}
else {
// Expand the container if neccessary
}
// Create the missing dictionary containers
for (iDict = 0; iDict < kNDict; iDict++) {
- dictionary[iDict] = fDigits->GetDictionary(iDet,iDict);
+ dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
if (dictionary[iDict]->GetNtime() == 0) {
- dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeMax);
- }
+ dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
+ }
}
Int_t nDigits = 0;
- // Create the digits for this chamber
- for (iRow = 0; iRow < nRowMax; iRow++ ) {
- for (iCol = 0; iCol < nColMax; iCol++ ) {
- for (iTime = 0; iTime < nTimeMax; iTime++) {
-
- Float_t signalAmp = signals->GetData(iRow,iCol,iTime);
-
- // Add the noise
- signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,fNoise),0.0);
- // Convert to fC
- signalAmp *= kEl2fC;
- // Convert to mV
- signalAmp *= fChipGain;
- // 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);
+ // Don't create noise in detectors that are switched off / not installed, etc.
+ if (( calibration->IsChamberInstalled(iDet)) &&
+ (!calibration->IsChamberMasked(iDet)) &&
+ ( fGeo->GetSMstatus(sector))) {
+
+ // Get the calibration objects
+ calGainFactorROC = calibration->GetGainFactorROC(iDet);
+ calGainFactorDetValue = calGainFactorDet->GetValue(iDet);
+
+ // Create the digits for this chamber
+ for (iRow = 0; iRow < nRowMax; iRow++ ) {
+ for (iCol = 0; iCol < nColMax; iCol++ ) {
+
+ // Check whether pad is masked
+ // Bridged pads are not considered yet!!!
+ if (calibration->IsPadMasked(iDet,iCol,iRow)) {
+ continue;
}
- else {
- adc = ((Int_t) (signalAmp * (fADCoutRange / fADCinRange)));
+
+ // Create summable digits
+ if (fSDigits) {
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+ Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
+ signalAmp *= fSDigitsScale;
+ signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9);
+ Int_t adc = (Int_t) signalAmp;
+ if (adc > 0) nDigits++;
+ digits->SetDataUnchecked(iRow,iCol,iTime,adc);
+ }
+
}
+ // Create normal digits
+ else {
+
+ Float_t padgain = calGainFactorDetValue
+ * calGainFactorROC->GetValue(iCol,iRow);
+ if (padgain <= 0) {
+ AliError(Form("Not a valid gain %f, %d %d %d",padgain,iDet,iCol,iRow));
+ }
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+
+ Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
+
+ // Pad and time coupling
+ signalAmp *= coupling;
+ // Gain factors
+ signalAmp *= padgain;
+
+ // Add the noise, starting from minus ADC baseline in electrons
+ Double_t baselineEl = simParam->GetADCbaseline()
+ * (simParam->GetADCinRange() / simParam->GetADCoutRange())
+ / convert;
+ signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
+ ,-baselineEl);
+ // Convert to mV
+ signalAmp *= convert;
+ // Add ADC baseline in mV
+ signalAmp += simParam->GetADCbaseline()
+ * (simParam->GetADCinRange() / simParam->GetADCoutRange());
+ // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
+ // signal is larger than fADCinRange
+ Int_t adc = 0;
+ if (signalAmp >= simParam->GetADCinRange()) {
+ adc = ((Int_t) simParam->GetADCoutRange());
+ }
+ else {
+ adc = TMath::Nint(signalAmp * (simParam->GetADCoutRange()
+ / simParam->GetADCinRange()));
+ }
+
+ inADC[iTime] = adc;
+ outADC[iTime] = adc;
- // 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->SetData(iRow,iCol,iTime,adc);
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+ // Store the amplitude of the digit if above threshold
+ if (outADC[iTime] > (simParam->GetADCbaseline() + simParam->GetADCthreshold())) {
+ nDigits++;
+ digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
+ }
+ }
+
}
- }
+ }
}
+
}
// Compress the arrays
totalSizeDict1 += dictionary[1]->GetSize();
totalSizeDict2 += dictionary[2]->GetSize();
- Float_t nPixel = nRowMax * nColMax * nTimeMax;
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Found %d digits in detector %d (%3.0f).\n"
- ,nDigits,iDet
- ,100.0 * ((Float_t) nDigits) / nPixel);
-
- if (fCompress) signals->Compress(1,0);
+ if (nDigits > 0) {
+ Float_t nPixel = nRowMax * nColMax * nTimeTotal;
+ AliDebug(1,Form("Found %d digits in detector %d (%3.0f)."
+ ,nDigits,iDet
+ ,100.0 * ((Float_t) nDigits) / nPixel));
+ }
+
+ if (fCompress) {
+ signals->Compress(1,0);
+ }
+
+ delete [] inADC;
+ delete [] outADC;
}
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Total number of analyzed hits = %d\n",countHits);
+ if (signalsArray) {
+ delete signalsArray;
+ signalsArray = 0;
+ }
- printf("AliTRDdigitizer::MakeDigits -- ");
- printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
- ,totalSizeDict0
- ,totalSizeDict1
- ,totalSizeDict2);
+ AliDebug(1,Form("Total number of analyzed hits = %d",countHits));
+ AliDebug(1,Form("Total digits data size = %d, %d, %d, %d",totalSizeDigits
+ ,totalSizeDict0
+ ,totalSizeDict1
+ ,totalSizeDict2));
return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector)
+void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
{
//
- // Checks whether a detector is enabled
+ // Add a digits manager for s-digits to the input list.
//
- 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;
+ fSDigitsManagerList->Add(man);
+
+}
+
+//_____________________________________________________________________________
+void AliTRDdigitizer::DeleteSDigitsManager()
+{
+ //
+ // Removes digits manager from the input list.
+ //
+
+ fSDigitsManagerList->Delete();
+
+}
+
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::ConvertSDigits()
+{
+ //
+ // Converts s-digits to normal digits
+ //
+
+ // Number of track dictionary arrays
+ const Int_t kNDict = AliTRDdigitsManager::kNDict;
+
+ // Converts number of electrons to fC
+ const Double_t kEl2fC = 1.602e-19 * 1.0e15;
+
+ Int_t iDict = 0;
+ Int_t iRow;
+ Int_t iCol;
+ Int_t iTime;
+
+ AliTRDCalROC *calGainFactorROC = 0;
+ Float_t calGainFactorDetValue = 0.0;
+
+ 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;
+ }
+
+ Double_t sDigitsScale = 1.0 / GetSDigitsScale();
+ Double_t noise = simParam->GetNoise();
+ Double_t padCoupling = simParam->GetPadCoupling();
+ Double_t timeCoupling = simParam->GetTimeCoupling();
+ Double_t chipGain = simParam->GetChipGain();
+ Double_t coupling = padCoupling * timeCoupling;
+ Double_t convert = kEl2fC * chipGain;
+ Double_t adcInRange = simParam->GetADCinRange();
+ Double_t adcOutRange = simParam->GetADCoutRange();
+ Int_t adcThreshold = simParam->GetADCthreshold();
+ Int_t adcBaseline = simParam->GetADCbaseline();
+ Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
+
+ AliTRDdataArrayI *digitsIn;
+ AliTRDdataArrayI *digitsOut;
+ AliTRDdataArrayI *dictionaryIn[kNDict];
+ AliTRDdataArrayI *dictionaryOut[kNDict];
+
+ // Get the detector wise calibration objects
+ const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet();
+
+ // 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);
+
+ Double_t *inADC = new Double_t[nTimeTotal];
+ Double_t *outADC = new Double_t[nTimeTotal];
+
+ 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);
}
- else {
- if ((sector < sens1) && (sector >= sens2)) return kFALSE;
+
+ // Don't create noise in detectors that are switched off / not installed, etc.
+ if (( calibration->IsChamberInstalled(iDet)) &&
+ (!calibration->IsChamberMasked(iDet)) &&
+ ( fGeo->GetSMstatus(sector))) {
+
+ // Get the calibration objects
+ calGainFactorROC = calibration->GetGainFactorROC(iDet);
+ calGainFactorDetValue = calGainFactorDet->GetValue(iDet);
+
+ for (iRow = 0; iRow < nRowMax; iRow++ ) {
+ for (iCol = 0; iCol < nColMax; iCol++ ) {
+
+ // Check whether pad is masked
+ // Bridged pads are not considered yet!!!
+ if (calibration->IsPadMasked(iDet,iCol,iRow)) {
+ continue;
+ }
+
+ Float_t padgain = calGainFactorDetValue
+ * calGainFactorROC->GetValue(iCol,iRow);
+ if (padgain <= 0) {
+ AliError(Form("Not a valid gain %f, %d %d %d",padgain,iDet,iCol,iRow));
+ }
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+
+ // Scale s-digits to normal digits
+ Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
+ signal *= sDigitsScale;
+ // Pad and time coupling
+ signal *= coupling;
+ // Gain factors
+ signal *= padgain;
+ // Add the noise, starting from minus ADC baseline in electrons
+ Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert;
+ signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl);
+ // Convert to mV
+ signal *= convert;
+ // add ADC baseline in mV
+ signal += adcBaseline * (adcInRange / adcOutRange);
+ // 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 = TMath::Nint(signal * (adcOutRange / adcInRange));
+ }
+ inADC[iTime] = adc;
+ outADC[iTime] = adc;
+
+ }
+
+ for (iTime = 0; iTime < nTimeTotal; iTime++) {
+ // Store the amplitude of the digit if above threshold
+ if (outADC[iTime] > (adcBaseline + adcThreshold)) {
+ digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
+ // 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);
+ }
+ }
+ }
+
+ }
+ }
+
+ }
+
+ 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);
+ }
}
+
+ delete [] inADC;
+ delete [] outADC;
+
+ }
+
+ return kTRUE;
+
+}
+
+//_____________________________________________________________________________
+Bool_t AliTRDdigitizer::MergeSDigits()
+{
+ //
+ // Merges the input s-digits:
+ // - The amplitude of the different inputs are summed up.
+ // - Of the track IDs from the input dictionaries only one is
+ // kept for each input. This works for maximal 3 different merged inputs.
+ //
+
+ // 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];
+
+ // Get the first s-digits
+ fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
+ if (!fSDigitsManager) {
+ AliError("No SDigits manager");
+ return kFALSE;
+ }
+
+ // Loop through the other sets of s-digits
+ AliTRDdigitsManager *mergeSDigitsManager;
+ 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);
+
+ // Loop through the pixels of one detector and add the signals
+ digitsA = fSDigitsManager->GetDigits(iDet);
+ digitsB = mergeSDigitsManager->GetDigits(iDet);
+ digitsA->Expand();
+ digitsB->Expand();
+ for (iDict = 0; iDict < kNDict; iDict++) {
+ dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
+ dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
+ dictionaryA[iDict]->Expand();
+ dictionaryB[iDict]->Expand();
+ }
+
+ // 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
+ Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
+ Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
+ ampA += ampB;
+ digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
+
+ // Add the mask to the track id if defined.
+ for (iDict = 0; iDict < kNDict; iDict++) {
+ Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime);
+ if ((fMasks) && (trackB > 0)) {
+ for (jDict = 0; jDict < kNDict; jDict++) {
+ Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime);
+ if (trackA == 0) {
+ trackA = trackB + fMasks[iMerge];
+ dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA);
+ }
+ }
+ }
+ }
+
+ }
+ }
+ }
+
+ }
+
+ 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);
+ }
+ }
+
+ }
+
+ // The next set of s-digits
+ mergeSDigitsManager = (AliTRDdigitsManager *)
+ fSDigitsManagerList->After(mergeSDigitsManager);
+
}
return kTRUE;
}
//_____________________________________________________________________________
-Bool_t AliTRDdigitizer::WriteDigits()
+Bool_t AliTRDdigitizer::SDigits2Digits()
{
//
- // Writes out the TRD-digits and the dictionaries
+ // Merges the input s-digits and converts them to normal digits
//
- // Create the branches
- if (!(gAlice->TreeD()->GetBranch("TRDdigits"))) {
- if (!fDigits->MakeBranch()) return kFALSE;
+ if (!MergeSDigits()) {
+ return kFALSE;
}
+ return ConvertSDigits();
+
+}
+
+//_____________________________________________________________________________
+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
- fDigits->WriteDigits();
-
- // Write the new tree into the input file (use overwrite option)
- Char_t treeName[15];
- sprintf(treeName,"TreeD%d",fEvent);
- printf("AliTRDdigitizer::WriteDigits -- ");
- printf("Write the digits tree %s for event %d.\n"
- ,treeName,fEvent);
- gAlice->TreeD()->Write(treeName,TObject::kOverwrite);
-
- return kTRUE;
+ return fDigitsManager->WriteDigits();
}
//_____________________________________________________________________________
-void AliTRDdigitizer::SetPRF(TF1 *prf)
+void AliTRDdigitizer::InitOutput(Int_t iEvent)
{
//
- // Defines a new pad response function
+ // Initializes the output branches
//
- if (fPRF) delete fPRF;
- fPRF = prf;
+ fEvent = iEvent;
+
+ if (!fRunLoader) {
+ AliError("Run Loader is NULL");
+ return;
+ }
+
+ AliLoader *loader = fRunLoader->GetLoader("TRDLoader");
+ if (!loader) {
+ AliError("Can not get TRD loader from Run Loader");
+ return;
+ }
+
+ 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);
}
//_____________________________________________________________________________
-void AliTRDdigitizer::SetTRF(TF1 *trf)
+Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z)
{
//
- // Defines a new time response function
+ // Applies the time structure of the drift cells (by C.Lippmann).
+ // The drift time of electrons to the anode wires depends on the
+ // distance to the wire (z) and on the position in the drift region.
+ //
+ // input :
+ // dist = radial distance from (cathode) pad plane [cm]
+ // z = distance from anode wire (parallel to cathode planes) [cm]
+ //
+ // output :
+ // tdrift = the drift time of an electron at the given position
//
+ // We interpolate between the drift time values at the two drift
+ // velocities fVDlo and fVDhi, being smaller and larger than
+ // fDriftVelocity. We use the two stored drift time maps fTimeStruct1
+ // and fTimeStruct2, calculated for the two mentioned drift velocities.
+ //
+
+ SampleTimeStruct(vdrift);
+
+ // Indices:
+ Int_t r1 = (Int_t)(10 * dist);
+ if (r1 < 0) r1 = 0;
+ if (r1 > 37) r1 = 37;
+ Int_t r2 = r1 + 1;
+ if (r2 < 0) r2 = 0;
+ if (r2 > 37) r2 = 37;
+ const Int_t kz1 = ((Int_t)(100 * z / 2.5));
+ const Int_t kz2 = kz1 + 1;
+
+ if ((r1 < 0) ||
+ (r1 > 37) ||
+ (kz1 < 0) ||
+ (kz1 > 10)) {
+ AliWarning(Form("Indices out of range: dist=%.2f, z=%.2f, r1=%d, kz1=%d"
+ ,dist,z,r1,kz1));
+ }
- if (fTRF) delete fTRF;
- fTRF = trf;
+ const Float_t ky111 = fTimeStruct1[r1+38*kz1];
+ const Float_t ky221 = ((r2 <= 37) && (kz2 <= 10))
+ ? fTimeStruct1[r2+38*kz2]
+ : fTimeStruct1[37+38*10];
+ const Float_t ky121 = (kz2 <= 10)
+ ? fTimeStruct1[r1+38*kz2]
+ : fTimeStruct1[r1+38*10];
+ const Float_t ky211 = (r2 <= 37)
+ ? fTimeStruct1[r2+38*kz1]
+ : fTimeStruct1[37+38*kz1];
+
+ // 2D Interpolation, lower drift time map
+ const Float_t ky11 = (ky211-ky111)*10*dist + ky111 - (ky211-ky111)*r1;
+ const Float_t ky21 = (ky221-ky121)*10*dist + ky121 - (ky221-ky121)*r1;
+
+ const Float_t ky112 = fTimeStruct2[r1+38*kz1];
+ const Float_t ky222 = ((r2 <= 37) && (kz2 <= 10))
+ ? fTimeStruct2[r2+38*kz2]
+ : fTimeStruct2[37+38*10];
+ const Float_t ky122 = (kz2 <= 10)
+ ? fTimeStruct2[r1+38*kz2]
+ : fTimeStruct2[r1+38*10];
+ const Float_t ky212 = (r2 <= 37)
+ ? fTimeStruct2[r2+38*kz1]
+ : fTimeStruct2[37+38*kz1];
+
+ // 2D Interpolation, larger drift time map
+ const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1;
+ const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1;
+
+ // Dist now is the drift distance to the anode wires (negative if electrons are
+ // between anode wire plane and cathode pad plane)
+ dist -= AliTRDgeometry::AmThick() / 2.0;
+
+ // Get the drift times for the drift velocities fVDlo and fVDhi
+ const Float_t ktdrift1 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
+ ? (ky21 - ky11) * 100 * z / 2.5 + ky11 - (ky21 - ky11) * kz1
+ : 0.0;
+ const Float_t ktdrift2 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
+ ? (ky22 - ky12) * 100 * z / 2.5 + ky12 - (ky22 - ky12) * kz1
+ : 0.0;
+
+ // 1D Interpolation between the values at fVDlo and fVDhi
+ Float_t a = (ktdrift2 - ktdrift1)
+ / (fVDhi - fVDlo);
+ Float_t b = ktdrift2 - a * fVDhi;
+
+ return a * vdrift + b;
}
//_____________________________________________________________________________
-Double_t TRFlandau(Double_t *x, Double_t *par)
+void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift)
{
+ //
+ // Samples the timing structure of a drift cell
+ // Drift Time data calculated with Garfield (by C.Lippmann)
+ //
+
+ // Nothing to do
+ if (vdrift == fTimeLastVdrift) {
+ return;
+ }
+ fTimeLastVdrift = vdrift;
+
+ // Drift time maps are saved for some drift velocity values (in drift region):
+ Float_t fVDsmp[8];
+ fVDsmp[0] = 1.032;
+ fVDsmp[1] = 1.158;
+ fVDsmp[2] = 1.299;
+ fVDsmp[3] = 1.450;
+ fVDsmp[4] = 1.610;
+ fVDsmp[5] = 1.783;
+ fVDsmp[6] = 1.959;
+ fVDsmp[7] = 2.134;
+
+ if (vdrift < fVDsmp[0]) {
+ AliWarning(Form("Drift Velocity too small (%.3f<%.3f)",vdrift,fVDsmp[0]));
+ vdrift = fVDsmp[0];
+ }
+ else if (vdrift > fVDsmp[7]) {
+ AliWarning(Form("Drift Velocity too large (%.3f>%.3f)",vdrift,fVDsmp[6]));
+ vdrift = fVDsmp[7];
+ }
- Double_t xx = x[0];
- Double_t landau = par[0] * TMath::Landau(xx,par[1],par[2]);
+ const Int_t ktimebin = 38;
+ const Int_t kZbin = 11;
+
+ // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm
+ Float_t time1500[ktimebin][kZbin] =
+ {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035,
+ 0.10445, 0.10993, 0.11838, 0.13986, 0.37858},
+ {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524,
+ 0.07951, 0.08515, 0.09381, 0.11601, 0.35673},
+ {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193,
+ 0.05680, 0.06306, 0.07290, 0.09873, 0.34748},
+ {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479,
+ 0.04098, 0.04910, 0.06413, 0.10567, 0.36897},
+ {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447,
+ 0.04074, 0.04984, 0.06839, 0.11625, 0.37277},
+ {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102,
+ 0.05602, 0.06309, 0.07651, 0.10938, 0.36838},
+ {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392,
+ 0.07853, 0.08510, 0.09690, 0.12621, 0.38058},
+ {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000,
+ 0.11205, 0.11952, 0.13461, 0.16984, 0.43017},
+ {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981,
+ 0.22785, 0.21240, 0.21948, 0.25965, 0.52392},
+ {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914,
+ 0.32999, 0.31208, 0.31772, 0.35804, 0.62249},
+ {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292,
+ 0.42773, 0.40948, 0.41497, 0.45527, 0.71955},
+ {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884,
+ 0.52479, 0.50650, 0.51194, 0.55225, 0.81658},
+ {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545,
+ 0.62172, 0.60341, 0.60885, 0.64915, 0.91339},
+ {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226,
+ 0.71862, 0.70030, 0.70575, 0.74604, 1.01035},
+ {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913,
+ 0.81551, 0.79720, 0.80264, 0.84292, 1.10723},
+ {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599,
+ 0.91240, 0.89408, 0.89952, 0.93981, 1.20409},
+ {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293,
+ 1.00929, 0.99096, 0.99640, 1.03669, 1.30106},
+ {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976,
+ 1.10617, 1.08784, 1.09329, 1.13358, 1.39796},
+ {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672,
+ 1.20307, 1.18472, 1.19018, 1.23046, 1.49486},
+ {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355,
+ 1.29992, 1.28156, 1.28707, 1.32735, 1.59177},
+ {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073,
+ 1.39681, 1.37851, 1.38396, 1.42377, 1.68854},
+ {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745,
+ 1.49368, 1.47541, 1.48083, 1.52112, 1.78546},
+ {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420,
+ 1.59016, 1.57231, 1.57772, 1.61800, 1.88048},
+ {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109,
+ 1.68651, 1.66921, 1.67463, 1.71489, 1.97918},
+ {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830,
+ 1.78341, 1.76605, 1.77150, 1.81179, 2.07608},
+ {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486,
+ 1.88128, 1.86215, 1.86837, 1.90865, 2.17304},
+ {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173,
+ 1.97812, 1.95905, 1.96527, 2.00710, 2.26979},
+ {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865,
+ 2.07501, 2.05666, 2.06214, 2.10243, 2.36669},
+ {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555,
+ 2.17182, 2.15341, 2.15904, 2.19933, 2.46363},
+ {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240,
+ 2.26877, 2.25015, 2.25573, 2.29586, 2.56060},
+ {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828,
+ 2.36567, 2.34705, 2.35282, 2.39765, 2.65744},
+ {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940,
+ 2.46257, 2.44420, 2.44843, 2.48987, 2.75431},
+ {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630,
+ 2.55947, 2.54112, 2.54513, 2.58677, 2.85094},
+ {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998,
+ 2.65626, 2.63790, 2.64316, 2.68360, 2.94813},
+ {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687,
+ 2.75319, 2.73463, 2.74032, 2.78060, 3.04503},
+ {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700,
+ 2.85009, 2.83177, 2.83723, 2.87750, 3.14193},
+ {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060,
+ 2.94576, 2.92868, 2.93356, 2.97436, 3.23868},
+ {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747,
+ 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}};
+
+ // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm
+ Float_t time1600[ktimebin][kZbin] =
+ {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032,
+ 0.10441, 0.10990, 0.11835, 0.13986, 0.37845},
+ {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521,
+ 0.07947, 0.08512, 0.09379, 0.11603, 0.35648},
+ {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190,
+ 0.05678, 0.06304, 0.07292, 0.09876, 0.34759},
+ {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477,
+ 0.04097, 0.04910, 0.06415, 0.10573, 0.36896},
+ {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446,
+ 0.04074, 0.04981, 0.06825, 0.11595, 0.37255},
+ {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102,
+ 0.05602, 0.06302, 0.07633, 0.10896, 0.36743},
+ {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392,
+ 0.07853, 0.08505, 0.09669, 0.12578, 0.37967},
+ {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000,
+ 0.11152, 0.11879, 0.13352, 0.16802, 0.42750},
+ {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406,
+ 0.21660, 0.20345, 0.21113, 0.25067, 0.51434},
+ {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340,
+ 0.30755, 0.29237, 0.29878, 0.33863, 0.60258},
+ {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696,
+ 0.39464, 0.37919, 0.38546, 0.42530, 0.68926},
+ {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246,
+ 0.48112, 0.46562, 0.47191, 0.51172, 0.77558},
+ {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855,
+ 0.56752, 0.55201, 0.55826, 0.59808, 0.86202},
+ {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483,
+ 0.65388, 0.63837, 0.64461, 0.68445, 0.94830},
+ {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117,
+ 0.74023, 0.72472, 0.73098, 0.77079, 1.03486},
+ {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751,
+ 0.82658, 0.81107, 0.81731, 0.85712, 1.12106},
+ {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386,
+ 0.91293, 0.89742, 0.90367, 0.94335, 1.20737},
+ {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021,
+ 0.99928, 0.98377, 0.99001, 1.02984, 1.29371},
+ {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720,
+ 1.08563, 1.07011, 1.07637, 1.11621, 1.37873},
+ {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301,
+ 1.17198, 1.15647, 1.16272, 1.20255, 1.46651},
+ {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934,
+ 1.25833, 1.24281, 1.24909, 1.28889, 1.55275},
+ {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584,
+ 1.34469, 1.32916, 1.33536, 1.37524, 1.63915},
+ {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438,
+ 1.43105, 1.41537, 1.42176, 1.46158, 1.72538},
+ {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085,
+ 1.51675, 1.50168, 1.50810, 1.54793, 1.81174},
+ {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478,
+ 1.60336, 1.58820, 1.59446, 1.63414, 1.89814},
+ {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257,
+ 1.69008, 1.67454, 1.68080, 1.72063, 1.98433},
+ {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752,
+ 1.77643, 1.76089, 1.76716, 1.80692, 2.07069},
+ {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376,
+ 1.86226, 1.84720, 1.85355, 1.89256, 2.15343},
+ {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010,
+ 1.94913, 1.93271, 1.93981, 1.97968, 2.24355},
+ {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646,
+ 2.03542, 2.01755, 2.02617, 2.06604, 2.32993},
+ {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367,
+ 2.12178, 2.10391, 2.11252, 2.15432, 2.41623},
+ {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919,
+ 2.20817, 2.19265, 2.20744, 2.23872, 2.49996},
+ {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563,
+ 2.29450, 2.27901, 2.28525, 2.32507, 2.58897},
+ {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287,
+ 2.38086, 2.36535, 2.37160, 2.40869, 2.67113},
+ {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817,
+ 2.46721, 2.45171, 2.45794, 2.49505, 2.76061},
+ {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453,
+ 2.55357, 2.53728, 2.54430, 2.58407, 2.84816},
+ {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103,
+ 2.63993, 2.62364, 2.63062, 2.67040, 2.93444},
+ {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739,
+ 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}};
+
+ // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm
+ Float_t time1700[ktimebin][kZbin] =
+ {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029,
+ 0.10438, 0.10986, 0.11832, 0.13986, 0.37824},
+ {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519,
+ 0.07944, 0.08511, 0.09378, 0.11603, 0.35625},
+ {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189,
+ 0.05676, 0.06301, 0.07291, 0.09880, 0.34724},
+ {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476,
+ 0.04096, 0.04910, 0.06417, 0.10582, 0.36861},
+ {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447,
+ 0.04074, 0.04980, 0.06812, 0.11565, 0.37231},
+ {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105,
+ 0.05603, 0.06299, 0.07618, 0.10860, 0.36646},
+ {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395,
+ 0.07852, 0.08500, 0.09650, 0.12532, 0.37850},
+ {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000,
+ 0.11102, 0.11809, 0.13245, 0.16627, 0.42496},
+ {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960,
+ 0.20627, 0.19536, 0.20366, 0.24256, 0.50557},
+ {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018,
+ 0.28740, 0.27477, 0.28196, 0.32128, 0.58475},
+ {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467,
+ 0.36500, 0.35217, 0.35926, 0.39860, 0.66194},
+ {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091,
+ 0.44212, 0.42925, 0.43632, 0.47563, 0.73892},
+ {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780,
+ 0.51912, 0.50627, 0.51334, 0.55254, 0.81595},
+ {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463,
+ 0.59617, 0.58328, 0.59035, 0.62965, 0.89303},
+ {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169,
+ 0.67317, 0.66028, 0.66735, 0.70666, 0.96995},
+ {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863,
+ 0.75016, 0.73728, 0.74435, 0.78366, 1.04696},
+ {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561,
+ 0.82716, 0.81427, 0.82133, 0.86064, 1.12396},
+ {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266,
+ 0.90414, 0.89128, 0.89834, 0.93763, 1.20100},
+ {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960,
+ 0.98115, 0.96825, 0.97533, 1.01462, 1.27801},
+ {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659,
+ 1.05814, 1.04526, 1.05233, 1.09163, 1.35503},
+ {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357,
+ 1.13516, 1.12225, 1.12933, 1.16863, 1.43195},
+ {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061,
+ 1.21212, 1.19926, 1.20626, 1.24554, 1.50900},
+ {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772,
+ 1.28914, 1.27382, 1.28329, 1.32262, 1.58550},
+ {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460,
+ 1.36612, 1.34924, 1.36030, 1.39961, 1.66310},
+ {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030,
+ 1.44314, 1.43032, 1.43731, 1.47659, 1.73442},
+ {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932,
+ 1.52012, 1.50725, 1.51430, 1.55357, 1.81708},
+ {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572,
+ 1.59713, 1.58424, 1.59128, 1.63061, 1.89406},
+ {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270,
+ 1.67411, 1.66124, 1.66799, 1.70759, 1.97103},
+ {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969,
+ 1.75112, 1.73806, 1.74530, 1.78457, 2.04794},
+ {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667,
+ 1.82811, 1.81504, 1.82101, 1.86161, 2.12492},
+ {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372,
+ 1.90509, 1.89202, 1.89930, 1.93859, 2.20189},
+ {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080,
+ 1.98207, 1.96921, 1.97628, 2.01384, 2.27887},
+ {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778,
+ 2.05846, 2.04623, 2.05330, 2.09244, 2.35585},
+ {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459,
+ 2.13610, 2.12322, 2.13029, 2.16942, 2.43199},
+ {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199,
+ 2.21310, 2.20020, 2.20727, 2.24659, 2.50983},
+ {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147,
+ 2.29009, 2.27725, 2.28276, 2.32359, 2.58680},
+ {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559,
+ 2.36683, 2.35422, 2.36119, 2.40058, 2.66081},
+ {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828,
+ 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}};
+
+ // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm
+ Float_t time1800[ktimebin][kZbin] =
+ {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026,
+ 0.10434, 0.10983, 0.11831, 0.13987, 0.37802},
+ {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520,
+ 0.07941, 0.08507, 0.09376, 0.11604, 0.35624},
+ {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187,
+ 0.05674, 0.06300, 0.07290, 0.09884, 0.34704},
+ {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476,
+ 0.04095, 0.04909, 0.06419, 0.10589, 0.36843},
+ {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448,
+ 0.04073, 0.04973, 0.06799, 0.11535, 0.37224},
+ {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105,
+ 0.05603, 0.06296, 0.07605, 0.10822, 0.36560},
+ {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395,
+ 0.07855, 0.08495, 0.09632, 0.12488, 0.37730},
+ {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000,
+ 0.11059, 0.11747, 0.13146, 0.16462, 0.42233},
+ {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635,
+ 0.19706, 0.18812, 0.19704, 0.23520, 0.49749},
+ {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920,
+ 0.26936, 0.25927, 0.26732, 0.30601, 0.56871},
+ {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597,
+ 0.33885, 0.32858, 0.33653, 0.37524, 0.63801},
+ {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428,
+ 0.40797, 0.39763, 0.40556, 0.44425, 0.70698},
+ {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306,
+ 0.47695, 0.46662, 0.47455, 0.51329, 0.77600},
+ {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200,
+ 0.54593, 0.53559, 0.54351, 0.58222, 0.84489},
+ {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094,
+ 0.61490, 0.60457, 0.61249, 0.65118, 0.91394},
+ {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989,
+ 0.68397, 0.67354, 0.68147, 0.72015, 0.98291},
+ {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896,
+ 0.75287, 0.74251, 0.75043, 0.78912, 1.04458},
+ {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785,
+ 0.82185, 0.81148, 0.81941, 0.85811, 1.12085},
+ {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683,
+ 0.89077, 0.88045, 0.88837, 0.92707, 1.18976},
+ {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578,
+ 0.95974, 0.94947, 0.95734, 0.99604, 1.25873},
+ {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481,
+ 1.02873, 1.01839, 1.02631, 1.06503, 1.32772},
+ {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378,
+ 1.09757, 1.08605, 1.09530, 1.13399, 1.39669},
+ {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281,
+ 1.16502, 1.15633, 1.16427, 1.20271, 1.46574},
+ {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190,
+ 1.23399, 1.22531, 1.23323, 1.27194, 1.53475},
+ {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073,
+ 1.30461, 1.29428, 1.30220, 1.34091, 1.60372},
+ {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962,
+ 1.37228, 1.36323, 1.37121, 1.40988, 1.67273},
+ {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865,
+ 1.44256, 1.43222, 1.44017, 1.47878, 1.74155},
+ {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759,
+ 1.51136, 1.50119, 1.50914, 1.54775, 1.81050},
+ {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697,
+ 1.58049, 1.57018, 1.57811, 1.61678, 1.87947},
+ {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787,
+ 1.64929, 1.63914, 1.64707, 1.68570, 1.94851},
+ {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684,
+ 1.71826, 1.70745, 1.71604, 1.75310, 2.01748},
+ {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346,
+ 1.78739, 1.77642, 1.78501, 1.82151, 2.08644},
+ {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332,
+ 1.85639, 1.84262, 1.85397, 1.89270, 2.15533},
+ {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615,
+ 1.92536, 1.91171, 1.92283, 1.96165, 2.22428},
+ {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048,
+ 1.99427, 1.98068, 1.99192, 2.03062, 2.29338},
+ {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987,
+ 2.06332, 2.05249, 2.05939, 2.09928, 2.36227},
+ {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850,
+ 2.12928, 2.12194, 2.12987, 2.16825, 2.43083},
+ {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872,
+ 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}};
+
+ // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm
+ Float_t time1900[ktimebin][kZbin] =
+ {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023,
+ 0.10431, 0.10980, 0.11828, 0.13988, 0.37789},
+ {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514,
+ 0.07938, 0.08505, 0.09374, 0.11606, 0.35599},
+ {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185,
+ 0.05672, 0.06298, 0.07290, 0.09888, 0.34695},
+ {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476,
+ 0.04094, 0.04909, 0.06421, 0.10597, 0.36823},
+ {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448,
+ 0.04074, 0.04973, 0.06783, 0.11506, 0.37206},
+ {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106,
+ 0.05604, 0.06293, 0.07592, 0.10787, 0.36484},
+ {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413,
+ 0.07852, 0.08491, 0.09614, 0.12446, 0.37626},
+ {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000,
+ 0.11013, 0.11685, 0.13050, 0.16302, 0.41991},
+ {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409,
+ 0.18846, 0.18167, 0.19113, 0.22854, 0.48995},
+ {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050,
+ 0.25368, 0.24575, 0.25446, 0.29249, 0.55442},
+ {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065,
+ 0.31605, 0.30815, 0.31680, 0.35482, 0.61697},
+ {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217,
+ 0.37825, 0.37031, 0.37897, 0.41696, 0.67890},
+ {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408,
+ 0.44037, 0.43242, 0.44108, 0.47906, 0.74122},
+ {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614,
+ 0.50248, 0.49452, 0.50316, 0.54116, 0.80326},
+ {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822,
+ 0.56459, 0.55661, 0.56527, 0.60326, 0.86526},
+ {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032,
+ 0.62670, 0.61872, 0.62737, 0.66537, 0.92749},
+ {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241,
+ 0.68881, 0.68081, 0.68947, 0.72750, 0.98941},
+ {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452,
+ 0.75089, 0.74295, 0.75157, 0.78957, 1.05157},
+ {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748,
+ 0.81299, 0.80501, 0.81193, 0.85168, 1.11375},
+ {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908,
+ 0.87509, 0.86660, 0.87577, 0.91376, 1.17586},
+ {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083,
+ 0.93718, 0.92922, 0.93787, 0.97588, 1.23794},
+ {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295,
+ 0.99929, 0.99127, 0.99997, 1.03797, 1.29995},
+ {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504,
+ 1.06140, 1.05343, 1.06203, 1.10006, 1.36216},
+ {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754,
+ 1.12350, 1.11550, 1.12417, 1.16218, 1.42427},
+ {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140,
+ 1.18560, 1.17284, 1.18625, 1.22414, 1.48629},
+ {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139,
+ 1.24164, 1.23495, 1.24838, 1.28634, 1.54852},
+ {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358,
+ 1.30793, 1.30179, 1.31047, 1.34848, 1.61066},
+ {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609,
+ 1.37004, 1.36392, 1.37045, 1.41057, 1.67259},
+ {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820,
+ 1.43215, 1.42602, 1.43467, 1.47268, 1.73477},
+ {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031,
+ 1.49601, 1.48811, 1.49677, 1.53477, 1.79691},
+ {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185,
+ 1.55771, 1.55023, 1.55888, 1.59672, 1.85501},
+ {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395,
+ 1.62008, 1.61233, 1.62085, 1.65883, 1.92091},
+ {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608,
+ 1.68237, 1.67108, 1.68301, 1.72110, 1.97931},
+ {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858,
+ 1.74404, 1.73539, 1.74512, 1.78321, 2.04522},
+ {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040,
+ 1.80615, 1.79366, 1.80723, 1.84509, 2.10742},
+ {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246,
+ 1.86795, 1.85405, 1.86938, 1.90720, 2.16953},
+ {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445,
+ 1.93006, 1.92283, 1.93148, 1.96931, 2.23147},
+ {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668,
+ 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}};
+
+ // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm
+ Float_t time2000[ktimebin][kZbin] =
+ {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020,
+ 0.10427, 0.10977, 0.11825, 0.13988, 0.37774},
+ {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513,
+ 0.07936, 0.08503, 0.09372, 0.11606, 0.35586},
+ {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184,
+ 0.05670, 0.06296, 0.07291, 0.09893, 0.34680},
+ {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474,
+ 0.04093, 0.04908, 0.06422, 0.10605, 0.36800},
+ {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449,
+ 0.04073, 0.04970, 0.06774, 0.11478, 0.37179},
+ {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108,
+ 0.05604, 0.06290, 0.07580, 0.10748, 0.36386},
+ {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398,
+ 0.07852, 0.08487, 0.09598, 0.12405, 0.37519},
+ {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000,
+ 0.10964, 0.11630, 0.12960, 0.16150, 0.41765},
+ {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286,
+ 0.18088, 0.17590, 0.18591, 0.22254, 0.48315},
+ {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376,
+ 0.23960, 0.23375, 0.24316, 0.28047, 0.54179},
+ {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810,
+ 0.29602, 0.29008, 0.29944, 0.33675, 0.59795},
+ {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364,
+ 0.35215, 0.34629, 0.35555, 0.39286, 0.65411},
+ {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956,
+ 0.40825, 0.40229, 0.41167, 0.44894, 0.71033},
+ {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560,
+ 0.46433, 0.45840, 0.46772, 0.50500, 0.76632},
+ {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167,
+ 0.52041, 0.51449, 0.52382, 0.56108, 0.82227},
+ {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776,
+ 0.57646, 0.57052, 0.57986, 0.61717, 0.87836},
+ {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380,
+ 0.63255, 0.62661, 0.63594, 0.67325, 0.93460},
+ {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988,
+ 0.68484, 0.68267, 0.69202, 0.72878, 0.99046},
+ {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595,
+ 0.74468, 0.73872, 0.74814, 0.78538, 1.04674},
+ {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204,
+ 0.80078, 0.79484, 0.80416, 0.84147, 1.10261},
+ {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813,
+ 0.85688, 0.85087, 0.86023, 0.89752, 1.15874},
+ {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417,
+ 0.91293, 0.90428, 0.91631, 0.95360, 1.20760},
+ {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026,
+ 0.96807, 0.96305, 0.97239, 1.00967, 1.27078},
+ {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664,
+ 1.02508, 1.01879, 1.02846, 1.06167, 1.32695},
+ {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242,
+ 1.08115, 1.07003, 1.08453, 1.12184, 1.38304},
+ {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422,
+ 1.13725, 1.13133, 1.14061, 1.17793, 1.43910},
+ {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455,
+ 1.19323, 1.18734, 1.19668, 1.23401, 1.49528},
+ {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064,
+ 1.24937, 1.24044, 1.25275, 1.29004, 1.55137},
+ {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670,
+ 1.30544, 1.29953, 1.30883, 1.34613, 1.60743},
+ {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278,
+ 1.36151, 1.35167, 1.36490, 1.40221, 1.66306},
+ {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888,
+ 1.41760, 1.41174, 1.42083, 1.45830, 1.71915},
+ {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496,
+ 1.47368, 1.46769, 1.47706, 1.51436, 1.77523},
+ {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137,
+ 1.52977, 1.51820, 1.53315, 1.57042, 1.83158},
+ {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736,
+ 1.58503, 1.57986, 1.58920, 1.62649, 1.88767},
+ {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316,
+ 1.63345, 1.63261, 1.64556, 1.68204, 1.94359},
+ {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925,
+ 1.69794, 1.69201, 1.70143, 1.73865, 1.99968},
+ {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819,
+ 1.75396, 1.74814, 1.75743, 1.79083, 2.05427},
+ {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428,
+ 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}};
+
+ // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm
+ Float_t time2100[ktimebin][kZbin] =
+ {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017,
+ 0.10424, 0.10974, 0.11823, 0.13988, 0.37762},
+ {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509,
+ 0.07933, 0.08500, 0.09370, 0.11609, 0.35565},
+ {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182,
+ 0.05668, 0.06294, 0.07291, 0.09896, 0.34676},
+ {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474,
+ 0.04096, 0.04908, 0.06424, 0.10612, 0.36790},
+ {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449,
+ 0.04073, 0.04964, 0.06759, 0.11446, 0.37162},
+ {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109,
+ 0.05605, 0.06287, 0.07575, 0.10713, 0.36298},
+ {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426,
+ 0.07852, 0.08483, 0.09581, 0.12363, 0.37424},
+ {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000,
+ 0.10923, 0.11578, 0.12873, 0.16005, 0.41525},
+ {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264,
+ 0.17421, 0.17078, 0.18132, 0.21708, 0.47699},
+ {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881,
+ 0.22737, 0.22337, 0.23348, 0.27000, 0.53032},
+ {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826,
+ 0.27871, 0.27462, 0.28471, 0.32122, 0.58166},
+ {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898,
+ 0.32982, 0.32570, 0.33576, 0.37229, 0.63268},
+ {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973,
+ 0.38088, 0.37675, 0.38680, 0.42333, 0.68159},
+ {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073,
+ 0.43192, 0.42780, 0.43786, 0.47438, 0.73480},
+ {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177,
+ 0.48297, 0.47884, 0.48889, 0.52544, 0.78581},
+ {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290,
+ 0.53398, 0.52988, 0.53994, 0.57647, 0.83687},
+ {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398,
+ 0.58504, 0.58092, 0.59100, 0.62768, 0.88773},
+ {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562,
+ 0.63609, 0.63197, 0.64203, 0.67856, 0.93907},
+ {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612,
+ 0.68714, 0.68301, 0.69294, 0.72955, 0.99000},
+ {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708,
+ 0.73818, 0.73405, 0.74412, 0.78064, 1.04100},
+ {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805,
+ 0.78904, 0.78512, 0.79517, 0.83152, 1.09205},
+ {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906,
+ 0.84027, 0.83614, 0.84621, 0.88269, 1.14058},
+ {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011,
+ 0.89139, 0.88718, 0.89725, 0.93377, 1.19413},
+ {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117,
+ 0.94235, 0.93822, 0.94828, 0.98480, 1.24538},
+ {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220,
+ 0.99310, 0.98927, 0.99933, 1.03585, 1.29629},
+ {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324,
+ 1.04451, 1.04033, 1.04836, 1.08690, 1.34727},
+ {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090,
+ 1.09546, 1.09136, 1.10142, 1.13795, 1.39831},
+ {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547,
+ 1.14658, 1.13642, 1.15247, 1.18898, 1.44936},
+ {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794,
+ 1.19763, 1.19329, 1.20349, 1.23956, 1.50043},
+ {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753,
+ 1.24862, 1.24434, 1.25455, 1.29106, 1.55142},
+ {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858,
+ 1.29967, 1.29538, 1.30499, 1.34211, 1.60250},
+ {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969,
+ 1.35069, 1.34656, 1.35663, 1.39316, 1.64644},
+ {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387,
+ 1.40173, 1.39761, 1.40768, 1.44396, 1.70238},
+ {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492,
+ 1.45278, 1.45423, 1.45872, 1.49522, 1.75557},
+ {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263,
+ 1.50382, 1.50050, 1.50977, 1.54502, 1.80670},
+ {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370,
+ 1.55484, 1.55155, 1.56080, 1.59731, 1.85778},
+ {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598,
+ 1.60590, 1.60259, 1.61185, 1.64836, 1.90883},
+ {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738,
+ 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}};
+
+ // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm
+ Float_t time2200[ktimebin][kZbin] =
+ {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014,
+ 0.10421, 0.10971, 0.11820, 0.13990, 0.37745},
+ {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507,
+ 0.07931, 0.08497, 0.09368, 0.11609, 0.35560},
+ {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183,
+ 0.05667, 0.06293, 0.07292, 0.09900, 0.34673},
+ {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473,
+ 0.04091, 0.04907, 0.06426, 0.10620, 0.36766},
+ {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452,
+ 0.04076, 0.04960, 0.06745, 0.11419, 0.37139},
+ {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110,
+ 0.05605, 0.06284, 0.07551, 0.10677, 0.36210},
+ {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401,
+ 0.07852, 0.08479, 0.09565, 0.12325, 0.37313},
+ {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000,
+ 0.10883, 0.11528, 0.12789, 0.15865, 0.41313},
+ {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331,
+ 0.16832, 0.16632, 0.17724, 0.21218, 0.47098},
+ {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557,
+ 0.21690, 0.21451, 0.22514, 0.26082, 0.52034},
+ {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097,
+ 0.26399, 0.26154, 0.27214, 0.30784, 0.56734},
+ {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739,
+ 0.31090, 0.30842, 0.31902, 0.35474, 0.61415},
+ {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412,
+ 0.35777, 0.35546, 0.36588, 0.40159, 0.66103},
+ {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094,
+ 0.40523, 0.40214, 0.41273, 0.44841, 0.70785},
+ {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778,
+ 0.45148, 0.44903, 0.45961, 0.49526, 0.75486},
+ {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470,
+ 0.49833, 0.49584, 0.50644, 0.54211, 0.80160},
+ {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148,
+ 0.54518, 0.54270, 0.55330, 0.58897, 0.84854},
+ {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846,
+ 0.59203, 0.58955, 0.60014, 0.63578, 0.89528},
+ {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533,
+ 0.63889, 0.63636, 0.64699, 0.68269, 0.94197},
+ {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639,
+ 0.68574, 0.68325, 0.69385, 0.72949, 0.98900},
+ {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890,
+ 0.73260, 0.73010, 0.74069, 0.77638, 1.03320},
+ {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576,
+ 0.77117, 0.77501, 0.78755, 0.82318, 1.08006},
+ {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281,
+ 0.81803, 0.82393, 0.83441, 0.87008, 1.12692},
+ {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086,
+ 0.87315, 0.87079, 0.88125, 0.91694, 1.17648},
+ {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772,
+ 0.92001, 0.91751, 0.92811, 0.95587, 1.22328},
+ {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566,
+ 0.96690, 0.96436, 0.97495, 1.01064, 1.26882},
+ {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001,
+ 1.01376, 1.01112, 1.02181, 1.05749, 1.31568},
+ {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820,
+ 1.06056, 1.05798, 1.06867, 1.10433, 1.36390},
+ {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297,
+ 1.10742, 1.10520, 1.11543, 1.15120, 1.41069},
+ {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531,
+ 1.15427, 1.14620, 1.16229, 1.19805, 1.45758},
+ {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910,
+ 1.20035, 1.19863, 1.20579, 1.24473, 1.50412},
+ {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913,
+ 1.24721, 1.24549, 1.25605, 1.29159, 1.54920},
+ {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558,
+ 1.29448, 1.29232, 1.30293, 1.33675, 1.59798},
+ {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244,
+ 1.34167, 1.33918, 1.34979, 1.38229, 1.64496},
+ {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930,
+ 1.38853, 1.38229, 1.39664, 1.42863, 1.69162},
+ {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183,
+ 1.43539, 1.43289, 1.44348, 1.47549, 1.73876},
+ {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305,
+ 1.48224, 1.47941, 1.49034, 1.52601, 1.78552},
+ {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991,
+ 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}};
+
+ if (fTimeStruct1) {
+ delete [] fTimeStruct1;
+ }
+ fTimeStruct1 = new Float_t[ktimebin*kZbin];
- return landau;
+ if (fTimeStruct2) {
+ delete [] fTimeStruct2;
+ }
+ fTimeStruct2 = new Float_t[ktimebin*kZbin];
+
+ for (Int_t ctrt = 0; ctrt < ktimebin; ctrt++) {
+ for (Int_t ctrz = 0; ctrz < kZbin; ctrz++) {
+ if (vdrift > fVDsmp[6]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz];
+ fVDlo = fVDsmp[6];
+ fVDhi = fVDsmp[7];
+ }
+ else if (vdrift > fVDsmp[5]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
+ fVDlo = fVDsmp[5];
+ fVDhi = fVDsmp[6];
+ }
+ else if (vdrift > fVDsmp[4]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
+ fVDlo = fVDsmp[4];
+ fVDhi = fVDsmp[5];
+ }
+ else if (vdrift > fVDsmp[3]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
+ fVDlo = fVDsmp[3];
+ fVDhi = fVDsmp[4];
+ }
+ else if (vdrift > fVDsmp[2]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
+ fVDlo = fVDsmp[2];
+ fVDhi = fVDsmp[3];
+ }
+ else if (vdrift > fVDsmp[1]) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
+ fVDlo = fVDsmp[1];
+ fVDhi = fVDsmp[2];
+ }
+ else if (vdrift > (fVDsmp[0] - 1.0e-5)) {
+ fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz];
+ fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
+ fVDlo = fVDsmp[0];
+ fVDhi = fVDsmp[1];
+ }
+ }
+ }
+
+}
+
+//_____________________________________________________________________________
+void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift)
+{
+ //
+ // Recalculates the diffusion parameters
+ //
+ // The B=0 case is not really included here.
+ // Should be revisited!
+ //
+
+ if (vdrift == fDiffLastVdrift) {
+ return;
+ }
+
+ AliTRDSimParam *simParam = AliTRDSimParam::Instance();
+ if (!simParam) {
+ AliFatal("Could not get simulation parameters");
+ return;
+ }
+
+ AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
+ if (!commonParam) {
+ AliFatal("Could not get common parameters");
+ return;
+ }
+
+ AliTRDcalibDB *calibration = AliTRDcalibDB::Instance();
+ if (!calibration) {
+ AliFatal("Could not get calibration object");
+ return;
+ }
+
+ // The magnetic field strength
+ Double_t x[3] = { 0.0, 0.0, 0.0 };
+ Double_t b[3];
+ gAlice->Field(x,b); // b[] is in kilo Gauss
+ Float_t field = b[2] * 0.1; // Tesla
+
+ fDiffLastVdrift = vdrift;
+
+ // DiffusionL
+ const Int_t kNbL = 5;
+ Float_t p0L[kNbL] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
+ Float_t p1L[kNbL] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
+ Float_t p2L[kNbL] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
+ Float_t p3L[kNbL] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
+
+ Int_t ibL = ((Int_t) (10 * (field - 0.15)));
+ ibL = TMath::Max( 0,ibL);
+ ibL = TMath::Min(kNbL,ibL);
+
+ fDiffusionL = p0L[ibL]
+ + p1L[ibL] * vdrift
+ + p2L[ibL] * vdrift*vdrift
+ + p3L[ibL] * vdrift*vdrift*vdrift;
+
+ // DiffusionT
+ const Int_t kNbT = 5;
+ Float_t p0T[kNbT] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
+ Float_t p1T[kNbT] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
+ Float_t p2T[kNbT] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
+ Float_t p3T[kNbT] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
+
+ Int_t ibT= ((Int_t) (10 * (field - 0.15)));
+ ibT = TMath::Max( 0,ibT);
+ ibT = TMath::Min(kNbT,ibT);
+
+ fDiffusionT = p0T[ibT]
+ + p1T[ibT] * vdrift
+ + p2T[ibT] * vdrift*vdrift
+ + p3T[ibT] * vdrift*vdrift*vdrift;
+
+ // OmegaTau
+ fOmegaTau = calibration->GetOmegaTau(vdrift,field);
+
+ // Lorentzfactor
+ if (commonParam->ExBOn()) {
+ fLorentzFactor = 1.0 / (1.0 + fOmegaTau*fOmegaTau);
+ }
+ else {
+ fLorentzFactor = 1.0;
+ }
+
+}
+
+//_____________________________________________________________________________
+Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift)
+{
+ //
+ // 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.
+ //
+
+ RecalcDiffusion(vdrift);
+
+ return fDiffusionL;
+
+}
+
+//_____________________________________________________________________________
+Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift)
+{
+ //
+ // 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.
+ //
+
+ RecalcDiffusion(vdrift);
+
+ return fDiffusionT;
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t absdriftlength
+ , Double_t &lRow, Double_t &lCol, Double_t &lTime)
+{
+ //
+ // Applies the diffusion smearing to the position of a single electron.
+ // Depends on absolute drift length.
+ //
+
+ RecalcDiffusion(vdrift);
+
+ Float_t driftSqrt = TMath::Sqrt(absdriftlength);
+ Float_t sigmaT = driftSqrt * fDiffusionT;
+ Float_t sigmaL = driftSqrt * fDiffusionL;
+ lRow = gRandom->Gaus(lRow ,sigmaT);
+ lCol = gRandom->Gaus(lCol ,sigmaT * GetLorentzFactor(vdrift));
+ lTime = gRandom->Gaus(lTime,sigmaL * GetLorentzFactor(vdrift));
+
+ return 1;
+
+}
+
+//_____________________________________________________________________________
+Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
+{
+ //
+ // Returns the recalculated Lorentz factor
+ //
+
+ RecalcDiffusion(vd);
+
+ return fLorentzFactor;
+
+}
+
+//_____________________________________________________________________________
+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.
+ //
+
+ RecalcDiffusion(vdrift);
+
+ lCol = lCol + fOmegaTau * driftlength;
+
+ return 1;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff