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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 | ||
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 | #include "TTimeStamp.h" | |
31 | ||
32 | #include "AliTPCTempMap.h" | |
33 | ||
34 | ||
35 | ClassImp(AliTPCTempMap) | |
36 | ||
37 | const char kStringFEsimulation[] = "FEsimulation.txt"; | |
38 | ||
39 | //_____________________________________________________________________________ | |
40 | AliTPCTempMap::AliTPCTempMap(AliTPCSensorTempArray *sensorDCS): | |
41 | TNamed(), | |
42 | fTempArray(0), | |
43 | fStringFEsimulation(kStringFEsimulation) | |
44 | { | |
45 | // | |
46 | // AliTPCTempMap default constructor | |
47 | // | |
48 | ||
49 | fTempArray = sensorDCS; | |
50 | ||
51 | } | |
52 | ||
53 | //_____________________________________________________________________________ | |
54 | AliTPCTempMap::AliTPCTempMap(const AliTPCTempMap &c): | |
55 | TNamed(c), | |
56 | fTempArray(c.fTempArray), | |
57 | fStringFEsimulation(c.fStringFEsimulation) | |
58 | { | |
59 | // | |
60 | // AliTPCTempMap copy constructor | |
61 | // | |
62 | ||
63 | } | |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | AliTPCTempMap::~AliTPCTempMap() | |
67 | { | |
68 | // | |
69 | // AliTPCTempMap destructor | |
70 | // | |
71 | ||
72 | } | |
73 | ||
74 | //_____________________________________________________________________________ | |
75 | AliTPCTempMap &AliTPCTempMap::operator=(const AliTPCTempMap &c) | |
76 | { | |
77 | // | |
78 | // Assignment operator | |
79 | // | |
80 | ||
81 | if (this != &c) ((AliTPCTempMap &) c).Copy(*this); | |
82 | return *this; | |
83 | ||
84 | } | |
85 | ||
86 | //_____________________________________________________________________________ | |
87 | void AliTPCTempMap::Copy(TObject &c) const | |
88 | { | |
89 | // | |
90 | // Copy function | |
91 | // | |
92 | ||
93 | TObject::Copy(c); | |
94 | ||
95 | } | |
96 | ||
97 | //_____________________________________________________________________________ | |
98 | ||
99 | Double_t AliTPCTempMap::GetTempGradientY(UInt_t timeSec, Int_t side){ | |
100 | // | |
101 | // Extract Linear Vertical Temperature Gradient [K/cm] within the TPC on | |
102 | // Shaft Side(A): 0 | |
103 | // Muon Side(C): 1 | |
104 | // Values based on TemperatureSensors within the TPC ( type: 3 (TPC) ) | |
105 | // | |
106 | // FIXME: Also return residual-distribution, covariance Matrix | |
107 | // or simply chi2 for validity check? | |
108 | // -> better use GetLinearFitter - function in this case! | |
109 | ||
110 | TLinearFitter *fitter = new TLinearFitter(3,"x0++x1++x2"); | |
111 | TVectorD param(3); | |
112 | Int_t i = 0; | |
113 | ||
114 | Int_t nsensors = fTempArray->NumSensors(); | |
115 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
116 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor); | |
117 | ||
118 | if (entry->GetType()==3 && entry->GetSide()==side) { // take SensorType:TPC | |
119 | Double_t x[3]; | |
120 | x[0]=1; | |
121 | x[1]=entry->GetX(); | |
122 | x[2]=entry->GetY(); | |
123 | Double_t y = fTempArray->GetValue(timeSec,isensor); // get temperature value | |
124 | if (IsOK(y)) fitter->AddPoint(x,y,1); // add values to LinearFitter | |
125 | i++; | |
126 | } | |
127 | ||
128 | } | |
129 | fitter->Eval(); | |
130 | fitter->GetParameters(param); | |
131 | ||
132 | fitter->~TLinearFitter(); | |
133 | ||
134 | return param[2]; // return vertical (Y) tempGradient in [K/cm] | |
135 | ||
136 | } | |
137 | ||
138 | //_____________________________________________________________________________ | |
139 | TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, TTimeStamp &stamp) | |
140 | { | |
141 | // | |
142 | // absolute time stamp used | |
143 | // see AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec) for details | |
144 | // | |
145 | Int_t timeSec = stamp.GetSec()-fTempArray->GetStartTime().GetSec(); | |
146 | return GetLinearFitter(type,side,timeSec); | |
147 | } | |
148 | ||
149 | //_____________________________________________________________________________ | |
150 | TLinearFitter *AliTPCTempMap::GetLinearFitter(Int_t type, Int_t side, UInt_t timeSec) | |
151 | { | |
152 | // | |
153 | // Creates a TlinearFitter object for the desired region of the TPC | |
154 | // (via choosen type and side of TPC temperature sensors) at a given | |
155 | // timeSec (in secounds) after start time | |
156 | // type: 0 ... ReadOutChambers (ROC) | |
157 | // 1 ... OuterContainmentVessel (OFC) | |
158 | // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS) | |
159 | // 3 ... Within the TPC (DriftVolume) (TPC) | |
160 | // 4 ... Only InnerContainmentVessel (IFC) | |
161 | // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in | |
162 | // in order to get all temperature sensors of interest) | |
163 | // 0 ... Shaft Side (A) | |
164 | // 1 ... Muon Side (C) | |
165 | // | |
166 | ||
167 | TLinearFitter *fitter = new TLinearFitter(3); | |
168 | Double_t *x = new Double_t[3]; | |
169 | Double_t y = 0; | |
170 | const Float_t kMaxDelta=0.5; | |
171 | ||
172 | if (type == 1 || type == 2 || type == 4) { | |
173 | fitter->SetFormula("x0++x1++TMath::Sin(x2)"); // returns Z,Y gradient | |
174 | } else { | |
175 | fitter->SetFormula("x0++x1++x2"); // returns X,Y gradient | |
176 | } | |
177 | ||
178 | Int_t i = 0; | |
179 | Int_t nsensors = fTempArray->NumSensors(); | |
180 | ||
181 | Float_t temps[1000]; | |
182 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
183 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor); | |
184 | if (entry->GetType()==type && entry->GetSide()==side){ | |
185 | Float_t temperature= fTempArray->GetValue(timeSec,isensor); // get temperature value | |
186 | if (IsOK(temperature)) {temps[i]=temperature; i++;} | |
187 | } | |
188 | } | |
189 | Float_t medianTemp = TMath::Median(i, temps); | |
190 | if (i<3) return 0; | |
191 | Float_t rmsTemp = TMath::RMS(i, temps); | |
192 | ||
193 | i=0; | |
194 | ||
195 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
196 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor); | |
197 | ||
198 | if (type==0 || type==3) { // 'side' information used | |
199 | if (entry->GetType()==type && entry->GetSide()==side) { | |
200 | x[0]=1; | |
201 | x[1]=entry->GetX(); | |
202 | x[2]=entry->GetY(); | |
203 | y = fTempArray->GetValue(timeSec,isensor); // get temperature value | |
204 | if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue; | |
205 | if (IsOK(y)) fitter->AddPoint(x,y,1); // add values to LinearFitter | |
206 | i++; | |
207 | } | |
208 | } else if (type==2) { // in case of IFC also usage of TS values | |
209 | if ((entry->GetType()==2) || (entry->GetType()==5)) { | |
210 | x[0]=1; | |
211 | x[1]=entry->GetZ(); | |
212 | x[2]=entry->GetPhi(); | |
213 | y = fTempArray->GetValue(timeSec,isensor); | |
214 | if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue; | |
215 | if (IsOK(y)) fitter->AddPoint(x,y,1); | |
216 | i++; | |
217 | } | |
218 | } else if (type==1){ | |
219 | if (entry->GetType()==type) { | |
220 | x[0]=1; | |
221 | x[1]=entry->GetZ(); | |
222 | x[2]=entry->GetPhi(); | |
223 | y = fTempArray->GetValue(timeSec,isensor); | |
224 | if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue; | |
225 | if (IsOK(y)) fitter->AddPoint(x,y,1); | |
226 | i++; | |
227 | } | |
228 | } else if (type==4) { // ONLY IFC | |
229 | if (entry->GetType()==2) { | |
230 | x[0]=1; | |
231 | x[1]=entry->GetZ(); | |
232 | x[2]=entry->GetPhi(); | |
233 | y = fTempArray->GetValue(timeSec,isensor); | |
234 | if (TMath::Abs(y-medianTemp)>kMaxDelta+4.*rmsTemp) continue; | |
235 | if (IsOK(y)) fitter->AddPoint(x,y,1); | |
236 | i++; | |
237 | } | |
238 | } | |
239 | } | |
240 | fitter->Eval(); | |
241 | //fitter->EvalRobust(0.9); // Evaluates fitter | |
242 | ||
243 | delete [] x; | |
244 | ||
245 | return fitter; | |
246 | ||
247 | // returns TLinearFitter object where Chi2, Fitparameters and residuals can | |
248 | // be extracted via usual memberfunctions | |
249 | // example: fitter->GetParameters(param) | |
250 | // In case of type IFC or OFC, the parameters are the gradients in | |
251 | // Z and Y direction (see fitformula) | |
252 | // Caution: Parameters are [K/cm] except Y at IFC,OFC ([K/radius]) | |
253 | } | |
254 | ||
255 | //_____________________________________________________________________________ | |
256 | ||
257 | TGraph2D *AliTPCTempMap::GetTempMapsViaSensors(Int_t type, Int_t side, UInt_t timeSec) | |
258 | { | |
259 | // | |
260 | // Creates a TGraph2D object for the desired region of the TPC | |
261 | // (via choosen type and side of TPC temperature sensors) at a given | |
262 | // timeSec (in secounds) after start time | |
263 | // type: 0 ... ReadOutChambers (ROC) | |
264 | // 1 ... OuterContainmentVessel (OFC) | |
265 | // 2 ... InnerContainmentVessel (IFC) + ThermalScreener (TS) | |
266 | // 3 ... Within the TPC (DriftVolume) (TPC) | |
267 | // side: Can be choosen for type 0 and 3 (otherwise it will be ignored in | |
268 | // in order to get all temperature sensors of interest) | |
269 | // 0 ... A - side | |
270 | // 1 ... C - side | |
271 | // | |
272 | ||
273 | TGraph2D *graph2D = new TGraph2D(); | |
274 | ||
275 | Int_t i = 0; | |
276 | ||
277 | Int_t nsensors = fTempArray->NumSensors(); | |
278 | for (Int_t isensor=0; isensor<nsensors; isensor++) { // loop over all sensors | |
279 | AliTPCSensorTemp *entry = (AliTPCSensorTemp*)fTempArray->GetSensorNum(isensor); | |
280 | ||
281 | Double_t x, y, z, r, phi, tempValue; | |
282 | x = entry->GetX(); | |
283 | y = entry->GetY(); | |
284 | z = entry->GetZ(); | |
285 | r = entry->GetR(); | |
286 | phi = entry->GetPhi(); | |
287 | tempValue = fTempArray->GetValue(timeSec,isensor); | |
288 | // printf("%d type %d: x=%lf y=%lf temp=%lf\n",isensor,entry->GetType(),x,y, tempValue); | |
289 | if (type==0 || type==3) { // 'side' information used | |
290 | if (entry->GetType()==type && entry->GetSide()==side) { | |
291 | graph2D->SetPoint(i,x,y,tempValue); | |
292 | i++; | |
293 | } | |
294 | } else if (type==2) { // in case of IFC also usage of TS values | |
295 | if (entry->GetType()==2 || entry->GetType()==5) { | |
296 | graph2D->SetPoint(i,z,phi,tempValue); | |
297 | i++; | |
298 | } | |
299 | } else if (type==1){ | |
300 | if (entry->GetType()==type) { | |
301 | graph2D->SetPoint(i,z,phi,tempValue); | |
302 | i++; | |
303 | } | |
304 | } | |
305 | } | |
306 | ||
307 | if (type==0 || type==3) { | |
308 | graph2D->GetXaxis()->SetTitle("X[cm]"); | |
309 | graph2D->GetYaxis()->SetTitle("Y[cm]"); | |
310 | if (type==0 && side==0) { | |
311 | graph2D->SetTitle("ROC A side"); | |
312 | } else if (type==0 && side==1) { | |
313 | graph2D->SetTitle("ROC C side"); | |
314 | } else if (type==3 && side==0) { | |
315 | graph2D->SetTitle("TPC A side (Inside the TPC)"); | |
316 | } else if (type==3 && side==1) { | |
317 | graph2D->SetTitle("TPC C side (Inside the TPC)"); | |
318 | } | |
319 | } else if (type==1 || type==2) { | |
320 | graph2D->GetXaxis()->SetTitle("Z[cm]"); | |
321 | graph2D->GetYaxis()->SetTitle("Phi[RAD]"); | |
322 | if (type==1) { | |
323 | graph2D->SetTitle("Outer Containment Vessel"); | |
324 | } else if (type==2) { | |
325 | graph2D->SetTitle("Inner Containment Vessel"); | |
326 | } | |
327 | } | |
328 | ||
329 | if (!graph2D->GetN()) { | |
330 | printf("Returned TGraph2D is empty: check type and side values\n"); | |
331 | } | |
332 | ||
333 | graph2D->GetXaxis()->SetLabelOffset(0.0); | |
334 | graph2D->GetYaxis()->SetLabelOffset(0.005); | |
335 | graph2D->GetZaxis()->SetLabelOffset(-0.04); | |
336 | ||
337 | ||
338 | return graph2D; // returns TGgraph2D object | |
339 | ||
340 | } | |
341 | ||
342 | ||
343 | //_____________________________________________________________________________ | |
344 | ||
345 | TGraph *AliTPCTempMap::MakeGraphGradient(Int_t axis, Int_t side, Int_t nPoints) | |
346 | { | |
347 | // | |
348 | // Make graph from start time to end time of TempGradient in axis direction | |
349 | // axis: 0 ... horizontal Temperature Gradient (X) | |
350 | // 1 ... vertical Temperature Gradient (Y) | |
351 | // 2 ... longitudenal Temperature Gradient (Z) (side is ignored) | |
352 | // z gradient value based on OFC temperature sensors | |
353 | // Caution!: better z gradient values through difference between | |
354 | // param[0] A- and param[0] C-side ! | |
355 | // side for X and Y gradient: | |
356 | // 0 ... Shaft Side (A) | |
357 | // 1 ... Muon Side (C) | |
358 | // | |
359 | ||
360 | TVectorD param(3); | |
361 | TLinearFitter *fitter = new TLinearFitter(3); | |
362 | ||
363 | UInt_t fStartTime = fTempArray->AliTPCSensorTempArray::GetStartTime(); | |
364 | UInt_t fEndTime = fTempArray->AliTPCSensorTempArray::GetEndTime(); | |
365 | ||
366 | UInt_t stepTime = (fEndTime-fStartTime)/nPoints; | |
367 | ||
368 | Double_t *x = new Double_t[nPoints]; | |
369 | Double_t *y = new Double_t[nPoints]; | |
370 | for (Int_t ip=0; ip<nPoints; ip++) { | |
371 | x[ip] = fStartTime+ip*stepTime; | |
372 | if (axis==2) {// Gradient in Z direction (based on OFC tempSensors) | |
373 | fitter = GetLinearFitter(1, side, ip*stepTime); | |
374 | } else {// Gradient in X or Y direction (based on TPC tempSensors) | |
375 | fitter = GetLinearFitter(3, side, ip*stepTime); | |
376 | } | |
377 | fitter->GetParameters(param); | |
378 | // multiplied by 500 since TempGradient is in [K/cm] | |
379 | // (TPC diameter and length ~500cm) | |
380 | if (axis==1) { // Y axis | |
381 | y[ip] = param[2]*500; | |
382 | } else { // X axis | |
383 | y[ip] = param[1]*500; | |
384 | } | |
385 | } | |
386 | ||
387 | TGraph *graph = new TGraph(nPoints,x,y); | |
388 | ||
389 | fitter->~TLinearFitter(); | |
390 | delete [] x; | |
391 | delete [] y; | |
392 | ||
393 | graph->GetXaxis()->SetTimeDisplay(1); | |
394 | graph->GetXaxis()->SetLabelOffset(0.02); | |
395 | graph->GetXaxis()->SetTimeFormat("#splitline{%d/%m}{%H:%M}"); | |
396 | ||
397 | return graph; | |
398 | } | |
399 | ||
400 | ||
401 | //_____________________________________________________________________________ | |
402 | Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, TTimeStamp &stamp) | |
403 | { | |
404 | // | |
405 | // absolute time stamp used | |
406 | // see also Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec) for details | |
407 | // | |
408 | ||
409 | Int_t timeSec = stamp.GetSec()-fTempArray->GetStartTime().GetSec(); | |
410 | return GetTemperature(x, y, z, timeSec); | |
411 | } | |
412 | ||
413 | //_____________________________________________________________________________ | |
414 | ||
415 | Double_t AliTPCTempMap::GetTemperature(Double_t x, Double_t y, Double_t z, UInt_t timeSec) | |
416 | { | |
417 | // | |
418 | // Returns estimated Temperature at given position (x,y,z[cm]) at given time | |
419 | // (timeSec) after starttime | |
420 | // Method: so far just a linear interpolation between Linar fits of | |
421 | // the TPC temperature sensors | |
422 | // FIXME: 'Educated Fit' through FiniteElement Simulation results! | |
423 | // FIXXME: Return 0? if x,y,z out of range | |
424 | // | |
425 | ||
426 | TVectorD paramA(3), paramC(3); | |
427 | TLinearFitter *fitterA = new TLinearFitter(3); | |
428 | TLinearFitter *fitterC = new TLinearFitter(3); | |
429 | ||
430 | fitterA = GetLinearFitter(3, 0, timeSec); | |
431 | fitterA->GetParameters(paramA); | |
432 | fitterC = GetLinearFitter(3, 1, timeSec); | |
433 | fitterC->GetParameters(paramC); | |
434 | ||
435 | Double_t fvalA = paramA[0]+paramA[1]*x+paramA[2]*y; | |
436 | Double_t fvalC = paramC[0]+paramC[1]*x+paramC[2]*y; | |
437 | ||
438 | Double_t k = (fvalA-fvalC)/(2*247); | |
439 | Double_t tempValue = fvalC+(fvalA-fvalC)/2+k*z; | |
440 | ||
441 | fitterA->~TLinearFitter(); | |
442 | fitterC->~TLinearFitter(); | |
443 | ||
444 | return tempValue; | |
445 | ||
446 | } | |
447 | ||
448 | ||
449 | Bool_t AliTPCTempMap::IsOK(Float_t value){ | |
450 | // | |
451 | // | |
452 | // | |
453 | const Float_t kMinT=15; | |
454 | const Float_t kMaxT=25; | |
455 | return (value>kMinT && value<kMaxT); | |
456 | } |