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1209231c | 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 | ||
17 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // TPC calibration class for temperature maps and tendencies // | |
20 | // (based on TPC Temperature Sensors and FiniteElement Simulation) // | |
21 | // // | |
22 | // Authors: Stefan Rossegger, Haavard Helstrup // | |
23 | // // | |
24 | /////////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | #include "AliTPCSensorTempArray.h" | |
27 | #include "TLinearFitter.h" | |
28 | #include "TString.h" | |
29 | #include "TGraph2D.h" | |
30 | ||
31 | #include "AliTPCTempMap.h" | |
32 | ||
33 | ||
34 | ClassImp(AliTPCTempMap) | |
35 | ||
36 | const char kStringFEsimulation[] = "FEsimulation.txt"; | |
37 | ||
38 | //_____________________________________________________________________________ | |
39 | AliTPCTempMap::AliTPCTempMap(AliTPCSensorTempArray *sensorDCS): | |
40 | TNamed(), | |
41 | ft(0), | |
42 | fStringFEsimulation(kStringFEsimulation) | |
43 | { | |
44 | // | |
45 | // AliTPCTempMap default constructor | |
46 | // | |
47 | ||
48 | ft = sensorDCS; | |
49 | ||
50 | } | |
51 | ||
52 | //_____________________________________________________________________________ | |
53 | AliTPCTempMap::AliTPCTempMap(const AliTPCTempMap &c): | |
54 | TNamed(c), | |
55 | ft(c.ft), | |
56 | fStringFEsimulation(c.fStringFEsimulation) | |
57 | { | |
58 | // | |
59 | // AliTPCTempMap copy constructor | |
60 | // | |
61 | ||
62 | } | |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | AliTPCTempMap::~AliTPCTempMap() | |
66 | { | |
67 | // | |
68 | // AliTPCTempMap destructor | |
69 | // | |
70 | ||
71 | } | |
72 | ||
73 | //_____________________________________________________________________________ | |
74 | AliTPCTempMap &AliTPCTempMap::operator=(const AliTPCTempMap &c) | |
75 | { | |
76 | // | |
77 | // Assignment operator | |
78 | // | |
79 | ||
80 | if (this != &c) ((AliTPCTempMap &) c).Copy(*this); | |
81 | return *this; | |
82 | ||
83 | } | |
84 | ||
85 | //_____________________________________________________________________________ | |
86 | void AliTPCTempMap::Copy(TObject &c) const | |
87 | { | |
88 | // | |
89 | // Copy function | |
90 | // | |
91 | ||
92 | TObject::Copy(c); | |
93 | ||
94 | } | |
95 | ||
96 | //_____________________________________________________________________________ | |
97 | ||
98 | Double_t AliTPCTempMap::GetTempGradientY(UInt_t timeSec, Int_t side){ | |
99 | // | |
100 | // Extract Linear Vertical Temperature Gradient [K/cm] within the TPC on | |
101 | // Shaft Side(A): 0 | |
102 | // Muon Side(C): 1 | |
103 | // Values based on TemperatureSensors within the TPC ( type: 3 (TPC) ) | |
104 | // | |
105 | // FIXME: Also return residual-distribution, covariance Matrix | |
106 | // or simply chi2 for validity check? | |
107 | // -> better use GetLinearFitter - function in this case! | |
108 | ||
109 | TLinearFitter fitter(3,"x0++x1++x2"); | |
110 | TVectorD param(3); | |
111 | Int_t i = 0; | |
112 | ||
113 | Int_t nsensors = ft->NumSensors(); | |
114 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
115 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor); | |
116 | ||
117 | if (entry->GetType()==3 && entry->GetSide()==side) { // take SensorType:TPC | |
118 | Double_t x[3]; | |
119 | x[0]=1; | |
120 | x[1]=entry->GetX(); | |
121 | x[2]=entry->GetY(); | |
122 | Double_t y = entry->GetValue(timeSec); // get temperature value | |
123 | fitter.AddPoint(x,y,1); // add values to LinearFitter | |
124 | i++; | |
125 | } | |
126 | ||
127 | } | |
128 | fitter.Eval(); | |
129 | fitter.GetParameters(param); | |
130 | fitter.~TLinearFitter(); | |
131 | ||
132 | return param[2]; // return vertical (Y) tempGradient in [K/cm] | |
133 | ||
134 | } | |
135 | ||
136 | //_____________________________________________________________________________ | |
137 | ||
138 | TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec) | |
139 | { | |
140 | // | |
141 | // Creates a TlinearFitter object for the desired region of the TPC | |
142 | // (via choosen type and side of TPC temperature sensors) at a given | |
143 | // timeSec (in secounds) after start time | |
144 | // type: 0 ... ReadOutChambers (ROC) | |
145 | // 1 ... OuterContainmentVessel (OFC) | |
146 | // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS) | |
147 | // 3 ... Within the TPC (DriftVolume) (TPC) | |
148 | // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in | |
149 | // in order to get all temperature sensors of interest) | |
150 | // 0 ... Shaft Side (A) | |
151 | // 1 ... Muon Side (C) | |
152 | // | |
153 | ||
154 | TLinearFitter *fitter = new TLinearFitter(3); | |
155 | Double_t *x = new Double_t[3]; | |
156 | Double_t y = 0; | |
157 | ||
158 | if (type == 1 || type == 2) { | |
159 | fitter->SetFormula("x0++x1++TMath::Sin(x2)"); // returns Z,Y gradient | |
160 | } else { | |
161 | fitter->SetFormula("x0++x1++x2"); // returns X,Y gradient | |
162 | } | |
163 | ||
164 | Int_t i = 0; | |
165 | Int_t nsensors = ft->NumSensors(); | |
166 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
167 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor); | |
168 | ||
169 | if (type==0 || type==3) { // 'side' information used | |
170 | if (entry->GetType()==type && entry->GetSide()==side) { | |
171 | x[0]=1; | |
172 | x[1]=entry->GetX(); | |
173 | x[2]=entry->GetY(); | |
174 | y = entry->GetValue(timeSec); // get temperature value | |
175 | fitter->AddPoint(x,y,1); // add values to LinearFitter | |
176 | i++; | |
177 | } | |
178 | } else if (type==2) { // in case of IFC also usage of TS values | |
179 | if ((entry->GetType()==2) || (entry->GetType()==5)) { | |
180 | x[0]=1; | |
181 | x[1]=entry->GetZ(); | |
182 | x[2]=entry->GetPhi(); | |
183 | y = entry->GetValue(timeSec); | |
184 | fitter->AddPoint(x,y,1); | |
185 | i++; | |
186 | } | |
187 | } else if (type==1){ | |
188 | if (entry->GetType()==type) { | |
189 | x[0]=1; | |
190 | x[1]=entry->GetZ(); | |
191 | x[2]=entry->GetPhi(); | |
192 | y = entry->GetValue(timeSec); | |
193 | fitter->AddPoint(x,y,1); | |
194 | i++; | |
195 | } | |
196 | } | |
197 | } | |
198 | fitter->Eval(); // Evaluates fitter | |
199 | ||
200 | delete [] x; | |
201 | ||
202 | return fitter; | |
203 | ||
204 | // returns TLinearFitter object where Chi2, Fitparameters and residuals can | |
205 | // be extracted via usual memberfunctions | |
206 | // example: fitter.GetParameters(param) | |
207 | // In case of type IFC or OFC, the parameters are the gradients in | |
208 | // Z and Y direction (see fitformula) | |
209 | // Caution: Parameters are [K/cm] except Y at IFC,OFC ([K/radius]) | |
210 | } | |
211 | ||
212 | //_____________________________________________________________________________ | |
213 | ||
214 | TGraph2D *AliTPCTempMap::GetTempMapsViaSensors(Int_t type, Int_t side, UInt_t timeSec) | |
215 | { | |
216 | // | |
217 | // Creates a TGraph2D object for the desired region of the TPC | |
218 | // (via choosen type and side of TPC temperature sensors) at a given | |
219 | // timeSec (in secounds) after start time | |
220 | // type: 0 ... ReadOutChambers (ROC) | |
221 | // 1 ... OuterContainmentVessel (OFC) | |
222 | // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS) | |
223 | // 3 ... Within the TPC (DriftVolume) (TPC) | |
224 | // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in | |
225 | // in order to get all temperature sensors of interest) | |
226 | // 0 ... Shaft Side (A) | |
227 | // 1 ... Muon Side (C) | |
228 | // | |
229 | ||
230 | TGraph2D *graph2D = new TGraph2D(); | |
231 | ||
232 | Int_t i = 0; | |
233 | ||
234 | ||
235 | Int_t nsensors = ft->NumSensors(); | |
236 | ||
237 | ||
238 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
239 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)ft->GetSensorNum(isensor); | |
240 | ||
241 | Double_t x, y, z, r, phi, tempValue; | |
242 | x = entry->GetX(); | |
243 | y = entry->GetY(); | |
244 | z = entry->GetZ(); | |
245 | r = entry->GetR(); | |
246 | phi = entry->GetPhi(); | |
247 | tempValue = entry->GetValue(timeSec); | |
248 | ||
249 | if (type==0 || type==3) { // 'side' information used | |
250 | if (entry->GetType()==type && entry->GetSide()==side) { | |
251 | graph2D->SetPoint(i,x,y,tempValue); | |
252 | i++; | |
253 | } | |
254 | } else if (type==2) { // in case of IFC also usage of TS values | |
255 | if (entry->GetType()==2 || entry->GetType()==5) { | |
256 | graph2D->SetPoint(i,z,phi,tempValue); | |
257 | i++; | |
258 | } | |
259 | } else if (type==1){ | |
260 | if (entry->GetType()==type) { | |
261 | graph2D->SetPoint(i,z,phi,tempValue); | |
262 | i++; | |
263 | } | |
264 | } | |
265 | } | |
266 | ||
267 | if (type==0 || type==3) { | |
268 | graph2D->GetXaxis()->SetTitle("X[cm]"); | |
269 | graph2D->GetYaxis()->SetTitle("Y[cm]"); | |
270 | if (type==0 && side==0) { | |
271 | graph2D->SetTitle("ROC A - Endplate Shaft Side"); | |
272 | } else if (type==0 && side==1) { | |
273 | graph2D->SetTitle("ROC C - Endplate Muon Side"); | |
274 | } else if (type==3 && side==0) { | |
275 | graph2D->SetTitle("TPC A - Inside the TPC Shaft Side"); | |
276 | } else if (type==3 && side==1) { | |
277 | graph2D->SetTitle("TPC C - Inside the TPC Muon Side"); | |
278 | } | |
279 | } else if (type==1 || type==2) { | |
280 | graph2D->GetXaxis()->SetTitle("Z[cm]"); | |
281 | graph2D->GetYaxis()->SetTitle("Phi[RAD]"); | |
282 | if (type==1) { | |
283 | graph2D->SetTitle("Outer Containment Vessel"); | |
284 | } else if (type==2) { | |
285 | graph2D->SetTitle("InnerContainmentVessel + ThermalScreeners"); | |
286 | } | |
287 | } | |
288 | ||
289 | if (!graph2D->GetN()) { | |
290 | printf("Returned TGraph2D is empty: check type and side values\n"); | |
291 | } | |
292 | ||
293 | graph2D->GetXaxis()->SetLabelOffset(0.0); | |
294 | graph2D->GetYaxis()->SetLabelOffset(0.005); | |
295 | graph2D->GetZaxis()->SetLabelOffset(-0.04); | |
296 | ||
297 | ||
298 | return graph2D; // returns TGgraph2D object | |
299 | ||
300 | } | |
301 | ||
302 | ||
303 | //_____________________________________________________________________________ | |
304 | ||
305 | TGraph *AliTPCTempMap::MakeGraphGradient(Int_t axis, Int_t side, Int_t nPoints) | |
306 | { | |
307 | // | |
308 | // Make graph from start time to end time of TempGradient in axis direction | |
309 | // axis: 0 ... horizontal Temperature Gradient (X) | |
310 | // 1 ... vertical Temperature Gradient (Y) | |
311 | // 2 ... longitudenal Temperature Gradient (Z) (side is ignored) | |
312 | // z gradient value based on OFC temperature sensors | |
313 | // Caution!: better z gradient values through difference between | |
314 | // param[0] A- and param[0] C-side ! | |
315 | // side for X and Y gradient: | |
316 | // 0 ... Shaft Side (A) | |
317 | // 1 ... Muon Side (C) | |
318 | // | |
319 | ||
320 | TVectorD param(3); | |
321 | TLinearFitter *fitter = new TLinearFitter(3); | |
322 | ||
323 | UInt_t fStartTime = ft->AliTPCSensorTempArray::GetStartTime(); | |
324 | UInt_t fEndTime = ft->AliTPCSensorTempArray::GetEndTime(); | |
325 | ||
326 | UInt_t stepTime = (fEndTime-fStartTime)/nPoints; | |
327 | ||
328 | Double_t *x = new Double_t[nPoints]; | |
329 | Double_t *y = new Double_t[nPoints]; | |
330 | for (Int_t ip=0; ip<nPoints; ip++) { | |
331 | x[ip] = fStartTime+ip*stepTime; | |
332 | if (axis==2) {// Gradient in Z direction (based on OFC tempSensors) | |
333 | fitter = GetLinearFitter(1, side, ip*stepTime); | |
334 | } else {// Gradient in X or Y direction (based on TPC tempSensors) | |
335 | fitter = GetLinearFitter(3, side, ip*stepTime); | |
336 | } | |
337 | fitter->GetParameters(param); | |
338 | // multiplied by 500 since TempGradient is in [K/cm] | |
339 | // (TPC diameter and length ~500cm) | |
340 | if (axis==1) { // Y axis | |
341 | y[ip] = param[2]*500; | |
342 | } else { // X axis | |
343 | y[ip] = param[1]*500; | |
344 | } | |
345 | } | |
346 | ||
347 | TGraph *graph = new TGraph(nPoints,x,y); | |
348 | ||
349 | fitter->~TLinearFitter(); | |
350 | delete [] x; | |
351 | delete [] y; | |
352 | ||
353 | graph->GetXaxis()->SetTimeDisplay(1); | |
354 | graph->GetXaxis()->SetLabelOffset(0.02); | |
355 | graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}"); | |
356 | ||
357 | return graph; | |
358 | } | |
359 | ||
360 | //_____________________________________________________________________________ | |
361 | ||
362 | Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec) | |
363 | { | |
364 | // | |
365 | // Returns estimated Temperature at given position (x,y,z) at given time | |
366 | // (timeSec) after starttime | |
367 | // Method: so far just a linear interpolation between Linar fits of | |
368 | // the TPC temperature sensors | |
369 | // FIXME: 'Educated Fit' through FiniteElement Simulation results! | |
370 | // FIXXME: Return 0? if x,y,z out of range | |
371 | // | |
372 | ||
373 | TVectorD paramA(3), paramC(3); | |
374 | TLinearFitter *fitterA = new TLinearFitter(3); | |
375 | TLinearFitter *fitterC = new TLinearFitter(3); | |
376 | ||
377 | fitterA = GetLinearFitter(3, 0, timeSec); | |
378 | fitterA->GetParameters(paramA); | |
379 | fitterC = GetLinearFitter(3, 1, timeSec); | |
380 | fitterC->GetParameters(paramC); | |
381 | ||
382 | Double_t fvalA = paramA[0]+paramA[1]*x+paramA[2]*y; | |
383 | Double_t fvalC = paramC[0]+paramC[1]*x+paramC[2]*y; | |
384 | ||
385 | Double_t k = (fvalA-fvalC)/(2*247); | |
386 | Double_t tempValue = fvalC+(fvalA-fvalC)/2+k*z; | |
387 | ||
388 | fitterA->~TLinearFitter(); | |
389 | fitterC->~TLinearFitter(); | |
390 | ||
391 | return tempValue; | |
392 | } | |
393 |