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04fa961a | 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 ITS // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
5fe305fe | 24 | #include <TFolder.h> |
25 | #include <TTree.h> | |
26 | #include <TVector3.h> | |
04fa961a | 27 | |
7ba8900c | 28 | #include "AliLog.h" |
5fe305fe | 29 | #include "AliESD.h" |
04fa961a | 30 | #include "AliITSRawStreamSDD.h" |
31 | #include "AliITSRawStreamSSD.h" | |
32 | #include "AliITSclusterV2.h" | |
5fe305fe | 33 | #include "AliITSgeom.h" |
34 | #include "AliMonitorHisto.h" | |
35 | #include "AliMonitorITS.h" | |
c6ba6205 | 36 | #include "AliRawReader.h" |
5fe305fe | 37 | #include "AliRunLoader.h" |
04fa961a | 38 | |
39 | ClassImp(AliMonitorITS) | |
40 | ||
41 | ||
42 | //_____________________________________________________________________________ | |
43 | AliMonitorITS::AliMonitorITS(AliITSgeom* geom) | |
44 | { | |
45 | // create a ITS monitor object with the given geometry | |
46 | ||
47 | fGeom = geom; | |
48 | } | |
49 | ||
50 | ||
c4bd737c | 51 | //_____________________________________________________________________________ |
52 | AliMonitorITS::AliMonitorITS(const AliMonitorITS& monitor) : | |
53 | AliMonitor(monitor) | |
54 | { | |
7ba8900c | 55 | AliFatal("copy constructor not implemented"); |
c4bd737c | 56 | } |
57 | ||
58 | //_____________________________________________________________________________ | |
59 | AliMonitorITS& AliMonitorITS::operator = (const AliMonitorITS& /*monitor*/) | |
60 | { | |
7ba8900c | 61 | AliFatal("assignment operator not implemented"); |
c4bd737c | 62 | return *this; |
63 | } | |
64 | ||
04fa961a | 65 | //_____________________________________________________________________________ |
66 | void AliMonitorITS::CreateHistos(TFolder* folder) | |
67 | { | |
68 | // create the ITS monitor histograms | |
69 | ||
70 | fFolder = folder->AddFolder("ITS", "ITS"); | |
71 | ||
72 | fSDDDigitsCharge = CreateHisto1("SDDDigitsCharge", | |
73 | "charge distribution of SDD digits", | |
74 | 128, 0, 256, "charge", "#Delta N/N", | |
75 | AliMonitorHisto::kNormEvents); | |
76 | ||
77 | fSSDDigitsCharge = CreateHisto1("SSDDigitsCharge", | |
78 | "charge distribution of SSD digits", | |
79 | 100, 0, 200, "charge", "#Delta N/N", | |
80 | AliMonitorHisto::kNormEvents); | |
81 | ||
82 | fSDDClustersCharge = CreateHisto1("SDDClustersCharge", | |
83 | "charge distribution of SDD clusters", | |
84 | 100, 0, 200, "charge", "#Delta N/N", | |
85 | AliMonitorHisto::kNormEvents); | |
86 | ||
87 | fSSDClustersCharge = CreateHisto1("SSDClustersCharge", | |
88 | "charge distribution of SSD clusters", | |
89 | 100, 0, 400, "charge", "#Delta N/N", | |
90 | AliMonitorHisto::kNormEvents); | |
91 | ||
92 | Int_t nModulesSPD = fGeom->GetLastSPD() - fGeom->GetStartSPD() + 1; | |
93 | fSPDNClustersVsModule = CreateHisto1("SPDNClustersVsModule", | |
94 | "mean number of clusters per SPD module", | |
95 | nModulesSPD, -0.5, nModulesSPD-0.5, | |
96 | "module", "<N_{clusters}>", | |
97 | AliMonitorHisto::kNormEvents); | |
98 | ||
99 | Int_t nModulesSDD = fGeom->GetLastSDD() - fGeom->GetStartSDD() + 1; | |
100 | fSDDNClustersVsModule = CreateHisto1("SDDNClustersVsModule", | |
101 | "mean number of clusters per SDD module", | |
102 | nModulesSDD, -0.5, nModulesSDD-0.5, | |
103 | "module", "<N_{clusters}>", | |
104 | AliMonitorHisto::kNormEvents); | |
105 | ||
106 | Int_t nModulesSSD = fGeom->GetLastSSD() - fGeom->GetStartSSD() + 1; | |
107 | fSSDNClustersVsModule = CreateHisto1("SSDNClustersVsModule", | |
108 | "mean number of clusters per SSD module", | |
109 | nModulesSSD, -0.5, nModulesSSD-0.5, | |
110 | "module", "<N_{clusters}>", | |
111 | AliMonitorHisto::kNormEvents); | |
112 | ||
113 | Int_t nLayer = fGeom->GetNlayers(); | |
114 | fNClustersVsLayer = CreateHisto1("NClustersVsLayer", | |
115 | "mean number of clusters per layer", | |
116 | nLayer, 0.5, nLayer+0.5, | |
117 | "layer", "<N_{clusters}>", | |
118 | AliMonitorHisto::kNormEvents); | |
119 | ||
120 | fNTracks = CreateHisto1("NTracks", "number of tracks per event", | |
121 | 300, 0, 30000, "N_{tracks}", "#Delta N/N", | |
122 | AliMonitorHisto::kNormEvents); | |
123 | ||
124 | fNTracksITSTPC = CreateHisto2("NTracksTPCITS", | |
125 | "correlation of number of ITS and TPC tracks per event", | |
126 | 30, 0, 30000, 30, 0, 30000, | |
127 | "N_{tracks}(ITS)", "N_{tracks}(TPC)", | |
128 | "#Delta N/N", AliMonitorHisto::kNormEvents); | |
129 | ||
130 | fTrackPt = CreateHisto1("TrackPt", "pt distribution of tracks", | |
131 | 90, 0, 3, "p_{t} [GeV/c]", "#Delta N/N", | |
132 | AliMonitorHisto::kNormEntries); | |
133 | ||
134 | fTrackEta = CreateHisto1("TrackEta", "eta distribution of tracks", | |
135 | 100, -2, 2, "#eta", "#Delta N/N", | |
136 | AliMonitorHisto::kNormEntries); | |
137 | ||
138 | fTrackPhi = CreateHisto1("TrackPhi", "phi distribution of tracks", | |
b6a3610d | 139 | 120, -180, 180, "#phi [#circ]", "#Delta N/N", |
04fa961a | 140 | AliMonitorHisto::kNormEntries); |
141 | ||
142 | fTrackDEdxVsP = CreateHisto2("TrackDEdxVsP", "dE/dx of tracks", | |
143 | 100, 0, 3, 100, 0, 150, | |
144 | "p [GeV/c]", "dE/dx", "#Delta N/N", | |
145 | AliMonitorHisto::kNormEntries); | |
146 | } | |
147 | ||
148 | ||
149 | //_____________________________________________________________________________ | |
150 | void AliMonitorITS::FillHistos(AliRunLoader* runLoader, | |
b6a3610d | 151 | AliRawReader* rawReader, AliESD* esd) |
04fa961a | 152 | { |
153 | // fill the ITS monitor histogrms | |
154 | ||
155 | rawReader->Reset(); | |
156 | AliITSRawStreamSDD inputSDD(rawReader); | |
157 | while (inputSDD.Next()) { | |
158 | fSDDDigitsCharge->Fill(inputSDD.GetSignal()); | |
159 | } | |
160 | ||
161 | rawReader->Reset(); | |
162 | AliITSRawStreamSSD inputSSD(rawReader); | |
163 | while (inputSSD.Next()) { | |
164 | fSSDDigitsCharge->Fill(inputSSD.GetSignal()); | |
165 | } | |
166 | ||
167 | AliLoader* itsLoader = runLoader->GetLoader("ITSLoader"); | |
168 | if (!itsLoader) return; | |
169 | ||
170 | ||
171 | itsLoader->LoadRecPoints(); | |
172 | TTree* clustersTree = itsLoader->TreeR(); | |
173 | if (!clustersTree) return; | |
174 | TClonesArray* clusters = new TClonesArray("AliITSclusterV2"); | |
175 | clustersTree->SetBranchAddress("Clusters", &clusters); | |
176 | ||
177 | for (Int_t iModule = 0; iModule < clustersTree->GetEntries(); iModule++) { | |
178 | clustersTree->GetEntry(iModule); | |
179 | Int_t iLayer, iLadder, iDetector; | |
180 | fGeom->GetModuleId(iModule, iLayer, iLadder, iDetector); | |
181 | ||
182 | for (Int_t j = 0; j < clusters->GetEntriesFast(); j++) { | |
183 | AliITSclusterV2* cluster = (AliITSclusterV2*) clusters->At(j); | |
184 | switch (iLayer) { | |
185 | case 1: case 2: { | |
186 | fSPDNClustersVsModule->Fill(iModule - fGeom->GetStartSPD()); | |
187 | break; | |
188 | } | |
189 | case 3: case 4: { | |
190 | fSDDClustersCharge->Fill(cluster->GetQ()); | |
191 | fSDDNClustersVsModule->Fill(iModule - fGeom->GetStartSDD()); | |
192 | break; | |
193 | } | |
194 | case 5: case 6: { | |
195 | fSSDClustersCharge->Fill(cluster->GetQ()); | |
196 | fSSDNClustersVsModule->Fill(iModule - fGeom->GetStartSSD()); | |
197 | break; | |
198 | } | |
199 | } | |
200 | fNClustersVsLayer->Fill(iLayer); | |
201 | } | |
202 | } | |
203 | ||
204 | delete clusters; | |
205 | itsLoader->UnloadRecPoints(); | |
206 | ||
207 | ||
b6a3610d | 208 | Int_t nTracks = 0; |
209 | Int_t nTPCTracks = 0; | |
210 | for (Int_t i = 0; i < esd->GetNumberOfTracks(); i++) { | |
211 | AliESDtrack* track = esd->GetTrack(i); | |
212 | if (!track) continue; | |
213 | if ((track->GetStatus() | AliESDtrack::kTPCin) != 0) nTPCTracks++; | |
214 | if ((track->GetStatus() | AliESDtrack::kITSin) == 0) continue; | |
215 | nTracks++; | |
216 | ||
217 | Double_t pxyz[3]; | |
218 | track->GetPxPyPz(pxyz); | |
219 | TVector3 pTrack(pxyz); | |
220 | fTrackPt->Fill(pTrack.Pt()); | |
221 | fTrackEta->Fill(pTrack.Eta()); | |
222 | fTrackPhi->Fill(pTrack.Phi() * TMath::RadToDeg()); | |
223 | fTrackDEdxVsP->Fill(pTrack.Mag(), track->GetITSsignal()); | |
04fa961a | 224 | } |
b6a3610d | 225 | fNTracks->Fill(nTracks); |
226 | fNTracksITSTPC->Fill(nTracks, nTPCTracks); | |
04fa961a | 227 | } |