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1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
3 | * * |
4 | * Author: The ALICE Off-line Project. * |
5 | * Contributors are mentioned in the code where appropriate. * |
6 | * * |
7 | * Permission to use, copy, modify and distribute this software and its * |
8 | * documentation strictly for non-commercial purposes is hereby granted * |
9 | * without fee, provided that the above copyright notice appears in all * |
10 | * copies and that both the copyright notice and this permission notice * |
11 | * appear in the supporting documentation. The authors make no claims * |
12 | * about the suitability of this software for any purpose. It is * |
13 | * provided "as is" without express or implied warranty. * |
14 | **************************************************************************/ |
15 | |
16 | /* $Id$ */ |
17 | |
18 | /////////////////////////////////////////////////////////////////////////////// |
19 | // // |
20 | // This class creates and fills the monitor histograms for the TPC // |
21 | // // |
22 | /////////////////////////////////////////////////////////////////////////////// |
23 | |
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24 | #include <TFolder.h> |
25 | #include <TTree.h> |
26 | #include <TVector3.h> |
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27 | |
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28 | #include "AliESD.h" |
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29 | #include "AliMonitorDataTPC.h" |
30 | #include "AliMonitorHisto.h" |
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31 | #include "AliMonitorTPC.h" |
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32 | #include "AliMonitorTrend.h" |
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33 | #include "AliRawReader.h" |
34 | #include "AliRunLoader.h" |
35 | #include "AliTPCClustersRow.h" |
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36 | #include "AliTPCParam.h" |
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37 | #include "AliTPCRawStream.h" |
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38 | #include "AliTPCclusterMI.h" |
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39 | |
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40 | ClassImp(AliMonitorTPC) |
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41 | |
42 | |
43 | //_____________________________________________________________________________ |
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44 | AliMonitorTPC::AliMonitorTPC(AliTPCParam* param) |
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45 | { |
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46 | // create a TPC monitor object with the given parameters |
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47 | |
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48 | fParam = param; |
49 | fData = new AliMonitorDataTPC(10000); |
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50 | } |
51 | |
52 | //_____________________________________________________________________________ |
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53 | AliMonitorTPC::AliMonitorTPC(const AliMonitorTPC& monitor) : |
54 | AliMonitor(monitor) |
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55 | { |
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56 | Fatal("AliMonitorTPC", "copy constructor not implemented"); |
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57 | } |
58 | |
59 | //_____________________________________________________________________________ |
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60 | AliMonitorTPC& AliMonitorTPC::operator = (const AliMonitorTPC& /*monitor*/) |
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61 | { |
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62 | Fatal("operator =", "assignment operator not implemented"); |
63 | return *this; |
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64 | } |
65 | |
66 | //_____________________________________________________________________________ |
67 | AliMonitorTPC::~AliMonitorTPC() |
68 | { |
69 | delete fData; |
70 | } |
71 | |
72 | |
73 | //_____________________________________________________________________________ |
74 | void AliMonitorTPC::CreateHistos(TFolder* folder) |
75 | { |
76 | // create the TPC monitor histograms |
77 | |
78 | fFolder = folder->AddFolder("TPC", "TPC"); |
79 | |
80 | fPadsCharge = CreateHisto1("PadsCharge", "charge distribution of pads", |
81 | 100, 0, 200, "charge", "#Delta N/N", |
82 | AliMonitorHisto::kNormEvents); |
83 | |
84 | fClustersCharge = CreateHisto1("ClustersCharge", |
85 | "charge distribution of clusters", |
86 | 100, 0, 1000, "charge", "#Delta N/N", |
87 | AliMonitorHisto::kNormEvents); |
88 | |
89 | Int_t nRows = fParam->GetNRowLow() + fParam->GetNRowUp(); |
90 | fNClustersVsRow = CreateHisto1("NClustersVsRow", |
91 | "mean number of clusters per pad row", |
92 | nRows, -0.5, nRows-0.5, |
93 | "pad row", "<N_{clusters}>", |
94 | AliMonitorHisto::kNormEvents); |
95 | |
96 | Int_t nSector = fParam->GetNInnerSector(); |
97 | fNClustersVsSector = CreateHisto1("NClustersVsSector", |
98 | "mean number of clusters per sector", |
99 | nSector, -0.5, nSector-0.5, |
100 | "sector", "<N_{clusters}>", |
101 | AliMonitorHisto::kNormEvents); |
102 | |
103 | fNTracks = CreateTrend("NTracks", "number of tracks per event", |
104 | "N_{tracks}"); |
105 | |
106 | fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks", |
107 | 90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N", |
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108 | AliMonitorHisto::kNormNone); |
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109 | |
110 | fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks", |
111 | 100, -2, 2, "#eta", "#Delta N/N", |
112 | AliMonitorHisto::kNormEntries); |
113 | |
114 | fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks", |
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115 | 120, -180, 180, "#phi [#circ]", "#Delta N/N", |
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116 | AliMonitorHisto::kNormEntries); |
117 | fTrackPhi->SetDescription("The phi distribution should be flat on average.\nIf it is not flat check for dead TPC sectors."); |
118 | |
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119 | fTrackNCl = CreateHisto1("TrackNCl", "Number of clusters per track", |
120 | 200, 0, 200, "N_{clusters}", "#Delta N/N", |
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121 | AliMonitorHisto::kNormNone); |
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122 | |
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123 | fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks", |
124 | 100, 0, 3, 100, 0, 200, |
125 | "p [GeV/c]", "dE/dx", "#Delta N/N", |
126 | AliMonitorHisto::kNormEntries); |
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127 | |
128 | fTrackDEdx = CreateHisto1("TrackDEdx", "dE/dx of tracks with 0.4<p<1.0 GeV/c", |
129 | 50, 0, 100, |
130 | "dE/dx", "#Delta N/N", |
131 | AliMonitorHisto::kNormEntries); |
132 | |
133 | fTrackEtaVsPhi = CreateHisto2("TrackEtaVsPhi", "#phi vs #eta", |
134 | 20, -1, 1, 25, 0, 360, |
135 | "#eta", "#phi", "#Delta N/N", |
136 | AliMonitorHisto::kNormNone); |
137 | |
138 | fPtEtaVsPhi = CreateHisto2("PtEtaVsPhi", "#phi vs #eta", |
139 | 20, -1, 1, 25, 0, 360, |
140 | "#eta", "#phi", "#Delta N/N", |
141 | AliMonitorHisto::kNormNone); |
142 | |
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143 | } |
144 | |
145 | |
146 | //_____________________________________________________________________________ |
147 | void AliMonitorTPC::CreateBranches(TTree* tree) |
148 | { |
149 | // create a branch with TPC variables |
150 | |
151 | tree->Branch("TPC", "AliMonitorDataTPC", &fData); |
152 | } |
153 | |
154 | |
155 | //_____________________________________________________________________________ |
156 | void AliMonitorTPC::FillHistos(AliRunLoader* runLoader, |
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157 | AliRawReader* rawReader, AliESD* esd) |
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158 | { |
159 | // fill the TPC monitor histogrms |
160 | |
161 | rawReader->Reset(); |
162 | AliTPCRawStream input(rawReader); |
163 | while (input.Next()) { |
164 | fPadsCharge->Fill(input.GetSignal()); |
165 | } |
166 | |
167 | AliLoader* tpcLoader = runLoader->GetLoader("TPCLoader"); |
168 | if (!tpcLoader) return; |
169 | |
170 | |
171 | tpcLoader->LoadRecPoints(); |
172 | TTree* clusters = tpcLoader->TreeR(); |
173 | if (!clusters) return; |
174 | AliTPCClustersRow* clustersRow = new AliTPCClustersRow; |
175 | clustersRow->SetClass("AliTPCclusterMI"); |
176 | clusters->SetBranchAddress("Segment", &clustersRow); |
177 | |
178 | for (Int_t i = 0; i < clusters->GetEntries(); i++) { |
179 | clusters->GetEntry(i); |
180 | Int_t iSector, iRow; |
181 | fParam->AdjustSectorRow(clustersRow->GetID(), iSector, iRow); |
182 | if (iSector >= fParam->GetNInnerSector()) { |
183 | iRow += fParam->GetNRowLow(); |
184 | iSector -= fParam->GetNInnerSector(); |
185 | } |
186 | |
187 | TObjArray* array = clustersRow->GetArray(); |
188 | for (Int_t j = 0; j < array->GetEntriesFast(); j++) { |
189 | AliTPCclusterMI* cluster = (AliTPCclusterMI*) array->At(j); |
190 | fClustersCharge->Fill(cluster->GetQ()); |
191 | fNClustersVsRow->Fill(iRow); |
192 | fNClustersVsSector->Fill(iSector); |
193 | } |
194 | } |
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195 | fNClustersVsSector->ScaleErrorBy(10.); |
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196 | |
197 | delete clustersRow; |
198 | tpcLoader->UnloadRecPoints(); |
199 | |
200 | |
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201 | Int_t nTracks = 0; |
202 | for (Int_t i = 0; i < esd->GetNumberOfTracks(); i++) { |
203 | AliESDtrack* track = esd->GetTrack(i); |
204 | if (!track || ((track->GetStatus() | AliESDtrack::kTPCin) == 0)) continue; |
205 | nTracks++; |
206 | |
207 | Double_t pxyz[3]; |
208 | track->GetInnerPxPyPz(pxyz); |
209 | TVector3 pTrack(pxyz); |
210 | Double_t p = pTrack.Mag(); |
211 | Double_t pt = pTrack.Pt(); |
212 | Double_t eta = pTrack.Eta(); |
213 | Double_t phi = pTrack.Phi() * TMath::RadToDeg(); |
214 | |
215 | fTrackPt->Fill(pt); |
216 | fTrackEta->Fill(eta); |
217 | fTrackPhi->Fill(phi); |
218 | if (pt > 3.) { |
219 | fTrackEtaVsPhi->Fill(eta, phi); |
220 | fPtEtaVsPhi->Fill(eta, phi, pTrack.Pt()); |
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221 | } |
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222 | fTrackNCl->Fill(track->GetTPCclusters(NULL)); |
223 | fTrackDEdxVsP->Fill(p, track->GetTPCsignal()); |
224 | if(p>0.4 && p<1.0) |
225 | fTrackDEdx->Fill(track->GetTPCsignal()); |
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226 | |
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227 | fData->SetData(i, pt, eta, phi); |
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228 | } |
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229 | fNTracks->Fill(nTracks); |
230 | fData->SetNTracks(nTracks); |
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231 | } |