1 | /* ======================================================================== *\
|
---|
2 | !
|
---|
3 | ! *
|
---|
4 | ! * This file is part of MARS, the MAGIC Analysis and Reconstruction
|
---|
5 | ! * Software. It is distributed to you in the hope that it can be a useful
|
---|
6 | ! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
|
---|
7 | ! * It is distributed WITHOUT ANY WARRANTY.
|
---|
8 | ! *
|
---|
9 | ! * Permission to use, copy, modify and distribute this software and its
|
---|
10 | ! * documentation for any purpose is hereby granted without fee,
|
---|
11 | ! * provided that the above copyright notice appear in all copies and
|
---|
12 | ! * that both that copyright notice and this permission notice appear
|
---|
13 | ! * in supporting documentation. It is provided "as is" without express
|
---|
14 | ! * or implied warranty.
|
---|
15 | ! *
|
---|
16 | !
|
---|
17 | !
|
---|
18 | ! Author(s): Josep Flix 04/2001 <mailto:jflix@ifae.es>
|
---|
19 | ! Author(s): Thomas Bretz 05/2001 <mailto:tbretz@astro.uni-wuerzburg.de>
|
---|
20 | ! Author(s): Sebastian Commichau 12/2003
|
---|
21 | ! Author(s): Javier Rico 01/2004 <mailto:jrico@ifae.es>
|
---|
22 | ! Author(s): Markus Gaug 01/2004 <mailto:markus@ifae.es>
|
---|
23 | !
|
---|
24 | ! Copyright: MAGIC Software Development, 2000-2004
|
---|
25 | !
|
---|
26 | !
|
---|
27 | \* ======================================================================== */
|
---|
28 | /////////////////////////////////////////////////////////////////////////////
|
---|
29 | //
|
---|
30 | // MPedCalcPedRun
|
---|
31 | //
|
---|
32 | // This task takes a pedestal run file and fills MPedestalCam during
|
---|
33 | // the Process() with the pedestal and rms computed in an event basis.
|
---|
34 | // In the PostProcess() MPedestalCam is finally filled with the pedestal
|
---|
35 | // mean and rms computed in a run basis.
|
---|
36 | // More than one run (file) can be merged
|
---|
37 | //
|
---|
38 | //
|
---|
39 | // Actually, MPedCalcPedRun applies the following formula (1):
|
---|
40 | //
|
---|
41 | // PedRMS = Sqrt( (sum(x_i^2) - sum(x_i)^2/n) / n-1 / 14 )
|
---|
42 | //
|
---|
43 | // where x_i is the sum of 14 FADC slices and sum means the sum over all
|
---|
44 | // events, n is the number of events.
|
---|
45 | //
|
---|
46 | // For a high number of events, this formula is equivalent to formula (2):
|
---|
47 | //
|
---|
48 | // PedRMS = Sqrt( (<x_i*x_i> - <x_i>*<x_i>) / 14 )
|
---|
49 | //
|
---|
50 | // where <> is the mean over all events and x_i again the sum over the 14
|
---|
51 | // slices.
|
---|
52 | //
|
---|
53 | // If you assume statistical equivalence of all slices (say, all have equal
|
---|
54 | // offset and are not correlated and fluctuate Gaussian), it should also be
|
---|
55 | // equivalent to (old formula) (3):
|
---|
56 | //
|
---|
57 | // PedRMS = Sqrt( (<p_i*p_i> - <p_i>*<p_i>) )
|
---|
58 | //
|
---|
59 | // which is the RMS per slice of a single slice (p_i) and
|
---|
60 | // <> the mean over the total number of measurements, i.e. n*14.
|
---|
61 | //
|
---|
62 | // If we assume that at least our pairs fluctuate independently and Gaussian,
|
---|
63 | // then we can use the actual formula (1) in order to get
|
---|
64 | // fluctuations of pairs by the transformation:
|
---|
65 | //
|
---|
66 | // PedRMS/pair = PedRMS (form. (3)) * Sqrt(2)
|
---|
67 | //
|
---|
68 | // (However, we know that our slice-to-slice fluctuations are not Gaussian
|
---|
69 | // (and moreover asymmetric) and that they are also correlated.)
|
---|
70 | //
|
---|
71 | // Call: SetRange(higainfirst, higainlast, logainfirst, logainlast)
|
---|
72 | // to modify the ranges in which the window is allowed to move.
|
---|
73 | // Defaults are:
|
---|
74 | //
|
---|
75 | // fHiGainFirst = fgHiGainFirst = 0
|
---|
76 | // fHiGainLast = fgHiGainLast = 14
|
---|
77 | // fLoGainFirst = fgLoGainFirst = 0
|
---|
78 | // fLoGainLast = fgLoGainLast = 14
|
---|
79 | //
|
---|
80 | // Call: SetWindowSize(windowhigain, windowlogain)
|
---|
81 | // to modify the sliding window widths. Windows have to be an even number.
|
---|
82 | // In case of odd numbers, the window will be modified.
|
---|
83 | //
|
---|
84 | // Defaults are:
|
---|
85 | //
|
---|
86 | // fHiGainWindowSize = fgHiGainWindowSize = 14
|
---|
87 | // fLoGainWindowSize = fgLoGainWindowSize = 0
|
---|
88 | //
|
---|
89 | //
|
---|
90 | // Input Containers:
|
---|
91 | // MRawEvtData
|
---|
92 | // MRawRunHeader
|
---|
93 | // MGeomCam
|
---|
94 | //
|
---|
95 | // Output Containers:
|
---|
96 | // MPedestalCam
|
---|
97 | //
|
---|
98 | //
|
---|
99 | /////////////////////////////////////////////////////////////////////////////
|
---|
100 | #include "MPedCalcPedRun.h"
|
---|
101 | #include "MExtractor.h"
|
---|
102 |
|
---|
103 | #include "MParList.h"
|
---|
104 |
|
---|
105 | #include "MLog.h"
|
---|
106 | #include "MLogManip.h"
|
---|
107 |
|
---|
108 | #include "MRawRunHeader.h"
|
---|
109 | #include "MRawEvtPixelIter.h"
|
---|
110 | #include "MRawEvtData.h"
|
---|
111 |
|
---|
112 | #include "MPedestalPix.h"
|
---|
113 | #include "MPedestalCam.h"
|
---|
114 |
|
---|
115 | #include "MGeomPix.h"
|
---|
116 | #include "MGeomCam.h"
|
---|
117 |
|
---|
118 | #include "MGeomCamMagic.h"
|
---|
119 |
|
---|
120 | ClassImp(MPedCalcPedRun);
|
---|
121 |
|
---|
122 | using namespace std;
|
---|
123 |
|
---|
124 | const Byte_t MPedCalcPedRun::fgHiGainFirst = 0;
|
---|
125 | const Byte_t MPedCalcPedRun::fgHiGainLast = 14;
|
---|
126 | const Byte_t MPedCalcPedRun::fgLoGainFirst = 0;
|
---|
127 | const Byte_t MPedCalcPedRun::fgLoGainLast = 14;
|
---|
128 | const Byte_t MPedCalcPedRun::fgHiGainWindowSize = 14;
|
---|
129 | const Byte_t MPedCalcPedRun::fgLoGainWindowSize = 0;
|
---|
130 | // --------------------------------------------------------------------------
|
---|
131 | //
|
---|
132 | // Default constructor:
|
---|
133 | //
|
---|
134 | // Sets:
|
---|
135 | // - fWindowSizeHiGain to fgHiGainWindowSize
|
---|
136 | // - fWindowSizeLoGain to fgLoGainWindowSize
|
---|
137 | //
|
---|
138 | // Calls:
|
---|
139 | // - AddToBranchList("fHiGainPixId");
|
---|
140 | // - AddToBranchList("fHiGainFadcSamples");
|
---|
141 | // - SetRange(fgHiGainFirst, fgHiGainLast, fgLoGainFirst, fgLoGainLast)
|
---|
142 | // - Clear()
|
---|
143 | //
|
---|
144 | MPedCalcPedRun::MPedCalcPedRun(const char *name, const char *title)
|
---|
145 | : fWindowSizeHiGain(fgHiGainWindowSize),
|
---|
146 | fWindowSizeLoGain(fgLoGainWindowSize)
|
---|
147 | {
|
---|
148 | fName = name ? name : "MPedCalcPedRun";
|
---|
149 | fTitle = title ? title : "Task to calculate pedestals from pedestal runs raw data";
|
---|
150 |
|
---|
151 | AddToBranchList("fHiGainPixId");
|
---|
152 | AddToBranchList("fHiGainFadcSamples");
|
---|
153 |
|
---|
154 | SetRange(fgHiGainFirst, fgHiGainLast, fgLoGainFirst, fgLoGainLast);
|
---|
155 | Clear();
|
---|
156 | }
|
---|
157 |
|
---|
158 | // --------------------------------------------------------------------------
|
---|
159 | //
|
---|
160 | // Sets:
|
---|
161 | // - fNumSamplesTot to 0
|
---|
162 | // - fRawEvt to NULL
|
---|
163 | // - fRunHeader to NULL
|
---|
164 | // - fPedestals to NULL
|
---|
165 | //
|
---|
166 | void MPedCalcPedRun::Clear(const Option_t *o)
|
---|
167 | {
|
---|
168 |
|
---|
169 | fNumSamplesTot = 0;
|
---|
170 |
|
---|
171 | fRawEvt = NULL;
|
---|
172 | fRunHeader = NULL;
|
---|
173 | fPedestals = NULL;
|
---|
174 | }
|
---|
175 |
|
---|
176 | // --------------------------------------------------------------------------
|
---|
177 | //
|
---|
178 | // SetRange:
|
---|
179 | //
|
---|
180 | // Calls:
|
---|
181 | // - MExtractor::SetRange(hifirst,hilast,lofirst,lolast);
|
---|
182 | // - SetWindowSize(fWindowSizeHiGain,fWindowSizeLoGain);
|
---|
183 | //
|
---|
184 | void MPedCalcPedRun::SetRange(Byte_t hifirst, Byte_t hilast, Byte_t lofirst, Byte_t lolast)
|
---|
185 | {
|
---|
186 |
|
---|
187 | MExtractor::SetRange(hifirst,hilast,lofirst,lolast);
|
---|
188 |
|
---|
189 | //
|
---|
190 | // Redo the checks if the window is still inside the ranges
|
---|
191 | //
|
---|
192 | SetWindowSize(fWindowSizeHiGain,fWindowSizeLoGain);
|
---|
193 |
|
---|
194 | }
|
---|
195 |
|
---|
196 |
|
---|
197 | // --------------------------------------------------------------------------
|
---|
198 | //
|
---|
199 | // Checks:
|
---|
200 | // - if a window is odd, subtract one
|
---|
201 | // - if a window is bigger than the one defined by the ranges, set it to the available range
|
---|
202 | // - if a window is smaller than 2, set it to 2
|
---|
203 | //
|
---|
204 | // Sets:
|
---|
205 | // - fNumHiGainSamples to: (Float_t)fWindowSizeHiGain
|
---|
206 | // - fNumLoGainSamples to: (Float_t)fWindowSizeLoGain
|
---|
207 | // - fSqrtHiGainSamples to: TMath::Sqrt(fNumHiGainSamples)
|
---|
208 | // - fSqrtLoGainSamples to: TMath::Sqrt(fNumLoGainSamples)
|
---|
209 | //
|
---|
210 | void MPedCalcPedRun::SetWindowSize(Byte_t windowh, Byte_t windowl)
|
---|
211 | {
|
---|
212 |
|
---|
213 | fWindowSizeHiGain = windowh & ~1;
|
---|
214 | fWindowSizeLoGain = windowl & ~1;
|
---|
215 |
|
---|
216 | if (fWindowSizeHiGain != windowh)
|
---|
217 | *fLog << warn << GetDescriptor() << ": Hi Gain window size has to be even, set to: "
|
---|
218 | << int(fWindowSizeHiGain) << " samples " << endl;
|
---|
219 |
|
---|
220 | if (fWindowSizeLoGain != windowl)
|
---|
221 | *fLog << warn << GetDescriptor() << ": Lo Gain window size has to be even, set to: "
|
---|
222 | << int(fWindowSizeLoGain) << " samples " << endl;
|
---|
223 |
|
---|
224 | const Byte_t availhirange = (fHiGainLast-fHiGainFirst+1) & ~1;
|
---|
225 | const Byte_t availlorange = (fLoGainLast-fLoGainFirst+1) & ~1;
|
---|
226 |
|
---|
227 | if (fWindowSizeHiGain > availhirange)
|
---|
228 | {
|
---|
229 | *fLog << warn << GetDescriptor()
|
---|
230 | << Form("%s%2i%s%2i%s%2i%s",": Hi Gain window size: ",(int)fWindowSizeHiGain,
|
---|
231 | " is bigger than available range: [",(int)fHiGainFirst,",",(int)fHiGainLast,"]") << endl;
|
---|
232 | *fLog << warn << GetDescriptor()
|
---|
233 | << ": Will set window size to: " << (int)availhirange << endl;
|
---|
234 | fWindowSizeHiGain = availhirange;
|
---|
235 | }
|
---|
236 |
|
---|
237 | if (fWindowSizeLoGain > availlorange)
|
---|
238 | {
|
---|
239 | *fLog << warn << GetDescriptor()
|
---|
240 | << Form("%s%2i%s%2i%s%2i%s",": Lo Gain window size: ",(int)fWindowSizeLoGain,
|
---|
241 | " is bigger than available range: [",(int)fLoGainFirst,",",(int)fLoGainLast,"]") << endl;
|
---|
242 | *fLog << warn << GetDescriptor()
|
---|
243 | << ": Will set window size to: " << (int)availlorange << endl;
|
---|
244 | fWindowSizeLoGain = availlorange;
|
---|
245 | }
|
---|
246 |
|
---|
247 |
|
---|
248 | fNumHiGainSamples = (Float_t)fWindowSizeHiGain;
|
---|
249 | fNumLoGainSamples = (Float_t)fWindowSizeLoGain;
|
---|
250 |
|
---|
251 | fSqrtHiGainSamples = TMath::Sqrt(fNumHiGainSamples);
|
---|
252 | fSqrtLoGainSamples = TMath::Sqrt(fNumLoGainSamples);
|
---|
253 |
|
---|
254 | }
|
---|
255 |
|
---|
256 |
|
---|
257 |
|
---|
258 | // --------------------------------------------------------------------------
|
---|
259 | //
|
---|
260 | // Look for the following input containers:
|
---|
261 | //
|
---|
262 | // - MRawEvtData
|
---|
263 | // - MRawRunHeader
|
---|
264 | // - MGeomCam
|
---|
265 | //
|
---|
266 | // The following output containers are also searched and created if
|
---|
267 | // they were not found:
|
---|
268 | //
|
---|
269 | // - MPedestalCam
|
---|
270 | //
|
---|
271 | Int_t MPedCalcPedRun::PreProcess( MParList *pList )
|
---|
272 | {
|
---|
273 |
|
---|
274 | Clear();
|
---|
275 |
|
---|
276 | fRawEvt = (MRawEvtData*)pList->FindObject("MRawEvtData");
|
---|
277 | if (!fRawEvt)
|
---|
278 | {
|
---|
279 | *fLog << err << "MRawEvtData not found... aborting." << endl;
|
---|
280 | return kFALSE;
|
---|
281 | }
|
---|
282 |
|
---|
283 | fRunHeader = (MRawRunHeader*)pList->FindObject(AddSerialNumber("MRawRunHeader"));
|
---|
284 | if (!fRunHeader)
|
---|
285 | {
|
---|
286 | *fLog << err << AddSerialNumber("MRawRunHeader") << " not found... aborting." << endl;
|
---|
287 | return kFALSE;
|
---|
288 | }
|
---|
289 |
|
---|
290 | fGeom = (MGeomCam*)pList->FindObject("MGeomCam");
|
---|
291 | if (!fGeom)
|
---|
292 | {
|
---|
293 | *fLog << err << "MGeomCam not found... aborting." << endl;
|
---|
294 | return kFALSE;
|
---|
295 | }
|
---|
296 |
|
---|
297 | fPedestals = (MPedestalCam*)pList->FindCreateObj("MPedestalCam");
|
---|
298 | if (!fPedestals)
|
---|
299 | return kFALSE;
|
---|
300 |
|
---|
301 | return kTRUE;
|
---|
302 | }
|
---|
303 |
|
---|
304 | // --------------------------------------------------------------------------
|
---|
305 | //
|
---|
306 | // The ReInit searches for:
|
---|
307 | // - MRawRunHeader::GetNumSamplesHiGain()
|
---|
308 | // - MRawRunHeader::GetNumSamplesLoGain()
|
---|
309 | //
|
---|
310 | // In case that the variables fHiGainLast and fLoGainLast are smaller than
|
---|
311 | // the even part of the number of samples obtained from the run header, a
|
---|
312 | // warning is given an the range is set back accordingly. A call to:
|
---|
313 | // - SetRange(fHiGainFirst, fHiGainLast-diff, fLoGainFirst, fLoGainLast) or
|
---|
314 | // - SetRange(fHiGainFirst, fHiGainLast, fLoGainFirst, fLoGainLast-diff)
|
---|
315 | // is performed in that case. The variable diff means here the difference
|
---|
316 | // between the requested range (fHiGainLast) and the available one. Note that
|
---|
317 | // the functions SetRange() are mostly overloaded and perform more checks,
|
---|
318 | // modifying the ranges again, if necessary.
|
---|
319 | //
|
---|
320 | Bool_t MPedCalcPedRun::ReInit(MParList *pList)
|
---|
321 | {
|
---|
322 |
|
---|
323 | Int_t lastdesired = (Int_t)fHiGainLast;
|
---|
324 | Int_t lastavailable = (Int_t)fRunHeader->GetNumSamplesHiGain()-1;
|
---|
325 |
|
---|
326 | if (lastdesired > lastavailable)
|
---|
327 | {
|
---|
328 | const Int_t diff = lastdesired - lastavailable;
|
---|
329 | *fLog << endl;
|
---|
330 | *fLog << warn << GetDescriptor()
|
---|
331 | << Form("%s%2i%s%2i%s%2i%s",": Selected Hi Gain FADC Window [",
|
---|
332 | (int)fHiGainFirst,",",lastdesired,
|
---|
333 | "] ranges out of the available limits: [0,",lastavailable,"].") << endl;
|
---|
334 | *fLog << GetDescriptor() << ": Will reduce the upper edge to " << (int)(fHiGainLast - diff) << endl;
|
---|
335 | SetRange(fHiGainFirst, fHiGainLast-diff, fLoGainFirst, fLoGainLast);
|
---|
336 | }
|
---|
337 |
|
---|
338 | lastdesired = (Int_t)(fLoGainLast);
|
---|
339 | lastavailable = (Int_t)fRunHeader->GetNumSamplesLoGain()-1;
|
---|
340 |
|
---|
341 | if (lastdesired > lastavailable)
|
---|
342 | {
|
---|
343 | const Int_t diff = lastdesired - lastavailable;
|
---|
344 | *fLog << endl;
|
---|
345 | *fLog << warn << GetDescriptor()
|
---|
346 | << Form("%s%2i%s%2i%s%2i%s",": Selected Lo Gain FADC Window [",
|
---|
347 | (int)fLoGainFirst,",",lastdesired,
|
---|
348 | "] ranges out of the available limits: [0,",lastavailable,"].") << endl;
|
---|
349 | *fLog << GetDescriptor() << ": Will reduce the upper edge to " << (int)(fLoGainLast - diff) << endl;
|
---|
350 | SetRange(fHiGainFirst, fHiGainLast, fLoGainFirst, fLoGainLast-diff);
|
---|
351 | }
|
---|
352 |
|
---|
353 | Int_t npixels = fPedestals->GetSize();
|
---|
354 | Int_t areas = fPedestals->GetAverageAreas();
|
---|
355 | Int_t sectors = fPedestals->GetAverageSectors();
|
---|
356 |
|
---|
357 | if (fSumx.GetSize()==0)
|
---|
358 | {
|
---|
359 | fSumx. Set(npixels);
|
---|
360 | fSumx2.Set(npixels);
|
---|
361 |
|
---|
362 | fAreaSumx. Set(areas);
|
---|
363 | fAreaSumx2.Set(areas);
|
---|
364 | fAreaValid.Set(areas);
|
---|
365 |
|
---|
366 | fSectorSumx. Set(sectors);
|
---|
367 | fSectorSumx2.Set(sectors);
|
---|
368 | fSectorValid.Set(sectors);
|
---|
369 |
|
---|
370 | fSumx.Reset();
|
---|
371 | fSumx2.Reset();
|
---|
372 | }
|
---|
373 |
|
---|
374 | if (fWindowSizeHiGain == 0 && fWindowSizeLoGain == 0)
|
---|
375 | {
|
---|
376 | *fLog << err << GetDescriptor()
|
---|
377 | << ": Number of extracted Slices is 0, abort ... " << endl;
|
---|
378 | return kFALSE;
|
---|
379 | }
|
---|
380 |
|
---|
381 |
|
---|
382 | *fLog << endl;
|
---|
383 | *fLog << inf << GetDescriptor() << ": Taking " << (int)fWindowSizeHiGain
|
---|
384 | << " HiGain FADC samples starting with slice: " << (int)fHiGainFirst << endl;
|
---|
385 | *fLog << inf << GetDescriptor() << ": Taking " << (int)fWindowSizeLoGain
|
---|
386 | << " LoGain FADC samples starting with slice: " << (int)fLoGainFirst << endl;
|
---|
387 |
|
---|
388 | return kTRUE;
|
---|
389 |
|
---|
390 | }
|
---|
391 | // --------------------------------------------------------------------------
|
---|
392 | //
|
---|
393 | // Fill the MPedestalCam container with the signal mean and rms for the event.
|
---|
394 | // Store the measured signal in arrays fSumx and fSumx2 so that we can
|
---|
395 | // calculate the overall mean and rms in the PostProcess()
|
---|
396 | //
|
---|
397 | Int_t MPedCalcPedRun::Process()
|
---|
398 | {
|
---|
399 |
|
---|
400 | MRawEvtPixelIter pixel(fRawEvt);
|
---|
401 |
|
---|
402 | while (pixel.Next())
|
---|
403 | {
|
---|
404 |
|
---|
405 | const UInt_t idx = pixel.GetPixelId();
|
---|
406 | const UInt_t aidx = (*fGeom)[idx].GetAidx();
|
---|
407 | const UInt_t sector = (*fGeom)[idx].GetSector();
|
---|
408 |
|
---|
409 | Byte_t *ptr = pixel.GetHiGainSamples() + fHiGainFirst;
|
---|
410 | Byte_t *end = ptr + fWindowSizeHiGain;
|
---|
411 |
|
---|
412 | UInt_t sum = 0;
|
---|
413 | UInt_t sqr = 0;
|
---|
414 |
|
---|
415 | do
|
---|
416 | {
|
---|
417 | sum += *ptr;
|
---|
418 | sqr += *ptr * *ptr;
|
---|
419 | }
|
---|
420 | while (++ptr != end);
|
---|
421 |
|
---|
422 | if (fWindowSizeLoGain != 0)
|
---|
423 | {
|
---|
424 |
|
---|
425 | ptr = pixel.GetLoGainSamples() + fLoGainFirst;
|
---|
426 | end = ptr + fWindowSizeLoGain;
|
---|
427 |
|
---|
428 | do
|
---|
429 | {
|
---|
430 | sum += *ptr;
|
---|
431 | sqr += *ptr * *ptr;
|
---|
432 | }
|
---|
433 | while (++ptr != end);
|
---|
434 |
|
---|
435 | }
|
---|
436 |
|
---|
437 | const Float_t msum = (Float_t)sum;
|
---|
438 |
|
---|
439 | //
|
---|
440 | // These three lines have been uncommented by Markus Gaug
|
---|
441 | // If anybody needs them, please contact me!!
|
---|
442 | //
|
---|
443 | // const Float_t higainped = msum/fNumHiGainSlices;
|
---|
444 | // const Float_t higainrms = TMath::Sqrt((msqr-msum*msum/fNumHiGainSlices)/(fNumHiGainSlices-1.));
|
---|
445 | // (*fPedestals)[idx].Set(higainped, higainrms);
|
---|
446 |
|
---|
447 | fSumx[idx] += msum;
|
---|
448 | fAreaSumx[aidx] += msum;
|
---|
449 | fSectorSumx[sector] += msum;
|
---|
450 | //
|
---|
451 | // The old version:
|
---|
452 | //
|
---|
453 | // const Float_t msqr = (Float_t)sqr;
|
---|
454 | // fSumx2[idx] += msqr;
|
---|
455 | //
|
---|
456 | // The new version:
|
---|
457 | //
|
---|
458 | const Float_t sqrsum = msum*msum;
|
---|
459 | fSumx2[idx] += sqrsum;
|
---|
460 | fAreaSumx2[aidx] += sqrsum;
|
---|
461 | fSectorSumx2[sector] += sqrsum;
|
---|
462 | }
|
---|
463 |
|
---|
464 | fPedestals->SetReadyToSave();
|
---|
465 | fNumSamplesTot += fWindowSizeHiGain + fWindowSizeLoGain;
|
---|
466 |
|
---|
467 | return kTRUE;
|
---|
468 | }
|
---|
469 |
|
---|
470 | // --------------------------------------------------------------------------
|
---|
471 | //
|
---|
472 | // Compute signal mean and rms in the whole run and store it in MPedestalCam
|
---|
473 | //
|
---|
474 | Int_t MPedCalcPedRun::PostProcess()
|
---|
475 | {
|
---|
476 |
|
---|
477 | // Compute pedestals and rms from the whole run
|
---|
478 | const ULong_t n = fNumSamplesTot;
|
---|
479 | const ULong_t nevts = GetNumExecutions();
|
---|
480 |
|
---|
481 | MRawEvtPixelIter pixel(fRawEvt);
|
---|
482 |
|
---|
483 | while (pixel.Next())
|
---|
484 | {
|
---|
485 |
|
---|
486 | const Int_t pixid = pixel.GetPixelId();
|
---|
487 | const UInt_t aidx = (*fGeom)[pixid].GetAidx();
|
---|
488 | const UInt_t sector = (*fGeom)[pixid].GetSector();
|
---|
489 |
|
---|
490 | fAreaValid [aidx]++;
|
---|
491 | fSectorValid[sector]++;
|
---|
492 |
|
---|
493 | const Float_t sum = fSumx.At(pixid);
|
---|
494 | const Float_t sum2 = fSumx2.At(pixid);
|
---|
495 |
|
---|
496 | const Float_t higainped = sum/n;
|
---|
497 | //
|
---|
498 | // The old version:
|
---|
499 | //
|
---|
500 | // const Float_t higainrms = TMath::Sqrt((sum2-sum*sum/n)/(n-1.));
|
---|
501 | //
|
---|
502 | // The new version:
|
---|
503 | //
|
---|
504 | // 1. Calculate the Variance of the sums:
|
---|
505 | Float_t higainVar = (sum2-sum*sum/nevts)/(nevts-1.);
|
---|
506 | // 2. Scale the variance to the number of slices:
|
---|
507 | higainVar /= (Float_t)(fWindowSizeHiGain+fWindowSizeLoGain);
|
---|
508 | // 3. Calculate the RMS from the Variance:
|
---|
509 | const Float_t higainrms = TMath::Sqrt(higainVar);
|
---|
510 |
|
---|
511 | (*fPedestals)[pixid].Set(higainped, higainrms);
|
---|
512 |
|
---|
513 | }
|
---|
514 |
|
---|
515 | //
|
---|
516 | // Loop over the (two) area indices to get the averaged pedestal per aidx
|
---|
517 | //
|
---|
518 | for (Int_t aidx=0; aidx<fAreaValid.GetSize(); aidx++)
|
---|
519 | {
|
---|
520 |
|
---|
521 | const Int_t napix = fAreaValid.At(aidx);
|
---|
522 | const Float_t sum = fAreaSumx.At(aidx);
|
---|
523 | const Float_t sum2 = fAreaSumx2.At(aidx);
|
---|
524 | const ULong_t an = napix * n;
|
---|
525 | const ULong_t aevts = napix * nevts;
|
---|
526 |
|
---|
527 | const Float_t higainped = sum/an;
|
---|
528 |
|
---|
529 | // 1. Calculate the Variance of the sums:
|
---|
530 | Float_t higainVar = (sum2-sum*sum/aevts)/(aevts-1.);
|
---|
531 | // 2. Scale the variance to the number of slices:
|
---|
532 | higainVar /= fWindowSizeHiGain+fWindowSizeLoGain;
|
---|
533 | // 3. Calculate the RMS from the Variance:
|
---|
534 | Float_t higainrms = TMath::Sqrt(higainVar);
|
---|
535 | // 4. Re-scale it with the square root of the number of involved pixels
|
---|
536 | // in order to be comparable to the mean of pedRMS of that area
|
---|
537 | higainrms *= TMath::Sqrt((Float_t)napix);
|
---|
538 |
|
---|
539 | fPedestals->GetAverageArea(aidx).Set(higainped, higainrms);
|
---|
540 | }
|
---|
541 |
|
---|
542 | //
|
---|
543 | // Loop over the (six) sector indices to get the averaged pedestal per sector
|
---|
544 | //
|
---|
545 | for (Int_t sector=0; sector<fSectorValid.GetSize(); sector++)
|
---|
546 | {
|
---|
547 |
|
---|
548 | const Int_t nspix = fSectorValid.At(sector);
|
---|
549 | const Float_t sum = fSectorSumx.At(sector);
|
---|
550 | const Float_t sum2 = fSectorSumx2.At(sector);
|
---|
551 | const ULong_t sn = nspix * n;
|
---|
552 | const ULong_t sevts = nspix * nevts;
|
---|
553 |
|
---|
554 | const Float_t higainped = sum/sn;
|
---|
555 |
|
---|
556 | // 1. Calculate the Variance of the sums:
|
---|
557 | Float_t higainVar = (sum2-sum*sum/sevts)/(sevts-1.);
|
---|
558 | // 2. Scale the variance to the number of slices:
|
---|
559 | higainVar /= fWindowSizeHiGain+fWindowSizeLoGain;
|
---|
560 | // 3. Calculate the RMS from the Variance:
|
---|
561 | Float_t higainrms = TMath::Sqrt(higainVar);
|
---|
562 | // 4. Re-scale it with the square root of the number of involved pixels
|
---|
563 | // in order to be comparable to the mean of pedRMS of that sector
|
---|
564 | higainrms *= TMath::Sqrt((Float_t)nspix);
|
---|
565 |
|
---|
566 | fPedestals->GetAverageSector(sector).Set(higainped, higainrms);
|
---|
567 | }
|
---|
568 |
|
---|
569 | fPedestals->SetTotalEntries(fNumSamplesTot);
|
---|
570 | fPedestals->SetReadyToSave();
|
---|
571 |
|
---|
572 | return kTRUE;
|
---|
573 | }
|
---|