source: trunk/MagicSoft/Mars/mcalib/MCalibrationChargeBlindPix.cc@ 3669

Last change on this file since 3669 was 3662, checked in by gaug, 22 years ago
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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): Markus Gaug 02/2004 <mailto:markus@ifae.es>
19!
20! Copyright: MAGIC Software Development, 2000-2004
21!
22!
23\* ======================================================================== */
24
25/////////////////////////////////////////////////////////////////////////////
26//
27// MCalibrationChargeBlindPix
28//
29// Storage container of the fit results of the Blind Pixel signal
30// (from MHCalibrationChargeBlindPix).
31//
32// The Flux is calculated in photons per mm^2 in the camera plane.
33//
34// Currently, the following numbers are implemented:
35// - gkBlindPixelArea: 100 mm^2
36// - Average QE of Blind Pixel:
37// gkBlindPixelQEGreen: 0.154
38// gkBlindPixelQEBlue : 0.226
39// gkBlindPixelQEUV : 0.247
40// gkBlindPixelQECT1 : 0.247
41// - Average QE Error of Blind Pixel:
42// gkBlindPixelQEGreenErr: 0.015;
43// gkBlindPixelQEBlueErr : 0.02;
44// gkBlindPixelQEUVErr : 0.02;
45// gkBlindPixelQECT1Err : 0.02;
46// - Attenuation factor Blind Pixel:
47// gkBlindPixelAttGreen : 1.97;
48// gkBlindPixelAttBlue : 1.96;
49// gkBlindPixelAttUV : 1.95;
50// gkBlindPixelAttCT1 : 1.95;
51//
52//
53/////////////////////////////////////////////////////////////////////////////
54#include "MCalibrationChargeBlindPix.h"
55
56#include <TH1.h>
57
58#include "MLog.h"
59#include "MLogManip.h"
60
61ClassImp(MCalibrationChargeBlindPix);
62
63using namespace std;
64const Float_t MCalibrationChargeBlindPix::gkBlindPixelArea = 100;
65const Float_t MCalibrationChargeBlindPix::gkBlindPixelAttGreen = 1.97;
66const Float_t MCalibrationChargeBlindPix::gkBlindPixelAttBlue = 1.96;
67const Float_t MCalibrationChargeBlindPix::gkBlindPixelAttUV = 1.95;
68const Float_t MCalibrationChargeBlindPix::gkBlindPixelAttCT1 = 1.95;
69const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEGreen = 0.154;
70const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEBlue = 0.226;
71const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEUV = 0.247;
72const Float_t MCalibrationChargeBlindPix::gkBlindPixelQECT1 = 0.247;
73const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEGreenErr = 0.015;
74const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEBlueErr = 0.02;
75const Float_t MCalibrationChargeBlindPix::gkBlindPixelQEUVErr = 0.02;
76const Float_t MCalibrationChargeBlindPix::gkBlindPixelQECT1Err = 0.02;
77// --------------------------------------------------------------------------
78//
79// Default Constructor.
80//
81// Calls:
82// - Clear()
83//
84MCalibrationChargeBlindPix::MCalibrationChargeBlindPix(const char *name, const char *title)
85{
86
87 fName = name ? name : "MCalibrationChargeBlindPix";
88 fTitle = title ? title : "Container of the fit results of the blind pixel";
89
90 Clear();
91}
92
93
94// ------------------------------------------------------------------------
95//
96// Sets:
97// - all flags to kFALSE
98// - all variables to -1.
99//
100// Calls:
101// - MCalibrationChargePix::Clear()
102//
103void MCalibrationChargeBlindPix::Clear(Option_t *o)
104{
105
106 fFluxInsidePlexiglass = -1.;
107 fFluxInsidePlexiglassVar = -1.;
108 fLambda = -1.;
109 fLambdaCheck = -1.;
110 fLambdaVar = -1.;
111 fMu0 = -1.;
112 fMu0Err = -1.;
113 fMu1 = -1.;
114 fMu1Err = -1.;
115 fSigma0 = -1.;
116 fSigma0Err = -1.;
117 fSigma1 = -1.;
118 fSigma1Err = -1.;
119
120 SetOscillating ( kFALSE );
121 SetExcluded ( kFALSE );
122 SetChargeFitValid ( kFALSE );
123 SetPedestalFitOK ( kFALSE );
124 SetSinglePheFitOK ( kFALSE );
125 SetFluxInsidePlexiglassAvailable ( kFALSE );
126
127 MCalibrationChargePix::Clear();
128}
129
130void MCalibrationChargeBlindPix::SetFluxInsidePlexiglassAvailable( const Bool_t b)
131{
132 b ? SETBIT(fFlags,kFluxInsidePlexiglassAvailable) : CLRBIT(fFlags,kFluxInsidePlexiglassAvailable);
133}
134
135// --------------------------------------------------------------------------
136//
137// Set the Oscillating Bit from outside
138//
139void MCalibrationChargeBlindPix::SetOscillating( const Bool_t b)
140{
141 b ? SETBIT(fFlags,kOscillating) : CLRBIT(fFlags,kOscillating);
142}
143
144// --------------------------------------------------------------------------
145//
146// Set the ChargeFitValid Bit from outside
147//
148void MCalibrationChargeBlindPix::SetChargeFitValid( const Bool_t b)
149{
150 b ? SETBIT(fFlags,kChargeFitValid) : CLRBIT(fFlags,kChargeFitValid);
151}
152
153// --------------------------------------------------------------------------
154//
155// Set the PedestalFitValid Bit from outside
156//
157void MCalibrationChargeBlindPix::SetPedestalFitOK( const Bool_t b)
158{
159 b ? SETBIT(fFlags,kPedestalFitOK) : CLRBIT(fFlags,kPedestalFitOK);
160}
161
162// --------------------------------------------------------------------------
163//
164// Set the SinglePheFitValid Bit from outside
165//
166void MCalibrationChargeBlindPix::SetSinglePheFitOK( const Bool_t b)
167{
168 b ? SETBIT(fFlags,kSinglePheFitOK) : CLRBIT(fFlags,kSinglePheFitOK);
169}
170
171// --------------------------------------------------------------------------
172//
173// Return -1 if fFluxInsidePlexiglassVar is smaller than 0.
174// Return square root of fFluxInsidePlexiglassVar
175//
176Float_t MCalibrationChargeBlindPix::GetFluxInsidePlexiglassErr() const
177{
178 if (fFluxInsidePlexiglassVar < 0.)
179 return -1.;
180
181 return TMath::Sqrt(fFluxInsidePlexiglassVar);
182}
183
184// --------------------------------------------------------------------------
185//
186// Return -1 if fLambdaVar is smaller than 0.
187// Return square root of fLambdaVar
188//
189Float_t MCalibrationChargeBlindPix::GetLambdaErr() const
190{
191 if (fLambdaVar < 0.)
192 return -1.;
193
194 return TMath::Sqrt(fLambdaVar);
195}
196
197// --------------------------------------------------------------------------
198//
199// Test bit kChargeFitValid
200//
201Bool_t MCalibrationChargeBlindPix::IsChargeFitValid() const
202{
203 return TESTBIT(fFlags,kChargeFitValid);
204}
205
206// --------------------------------------------------------------------------
207//
208// Test bit kOscillating
209//
210Bool_t MCalibrationChargeBlindPix::IsOscillating() const
211{
212 return TESTBIT(fFlags,kOscillating);
213}
214
215// --------------------------------------------------------------------------
216//
217// Test bit kPedestalFitValid
218//
219Bool_t MCalibrationChargeBlindPix::IsPedestalFitOK() const
220{
221 return TESTBIT(fFlags,kPedestalFitOK);
222}
223
224// --------------------------------------------------------------------------
225//
226// Test bit kSinglePheFitValid
227//
228Bool_t MCalibrationChargeBlindPix::IsSinglePheFitOK() const
229{
230 return TESTBIT(fFlags,kSinglePheFitOK);
231}
232
233// --------------------------------------------------------------------------
234//
235// Test bit kFluxInsidePlexiglassAvailable
236//
237Bool_t MCalibrationChargeBlindPix::IsFluxInsidePlexiglassAvailable() const
238{
239 return TESTBIT(fFlags,kFluxInsidePlexiglassAvailable);
240}
241
242
243// --------------------------------------------------------------------------
244//
245// Return kFALSE if IsChargeFitValid() is kFALSE
246//
247// Calculate fFluxInsidePlexiglass with the formula:
248// - fFluxInsidePlexiglass = fLambda * gkBlindPixelArea / gkBlindPixelQE * 10**gkBlindPixelAtt
249// - fFluxInsidePlexiglassVar = sqrt( fLambdaVar / ( fLambda * fLambda )
250// + ( gkBlindPixelQEErr * gkBlindPixelQEErr / gkBlindPixelQE / gkBlindPixelQE )
251// ) * fFluxInsidePlexiglass * * fFluxInsidePlexiglass
252//
253// If the fFluxInsidePlexiglass is smaller than 0., return kFALSE
254// If the Variance is smaller than 0., return kFALSE
255//
256// SetFluxInsidePlexiglassAvailable() and return kTRUE
257//
258Bool_t MCalibrationChargeBlindPix::CalcFluxInsidePlexiglass()
259{
260
261 if (IsChargeFitValid())
262 return kFALSE;
263
264
265 //
266 // Start calculation of number of photons
267 // The blind pixel has exactly 100 mm^2 area (with negligible error),
268 //
269 fFluxInsidePlexiglass = fLambda*gkBlindPixelArea;
270
271 //
272 // Start calculation of number of photons relative Variance
273 //
274 const Float_t lambdaRelVar = fLambdaVar / ( fLambda * fLambda );
275 fFluxInsidePlexiglassVar = lambdaRelVar;
276
277 switch (fColor)
278 {
279 case kGREEN:
280 fFluxInsidePlexiglass /= gkBlindPixelQEGreen;
281 fFluxInsidePlexiglassVar += gkBlindPixelQEGreenErr * gkBlindPixelQEGreenErr
282 / ( gkBlindPixelQEGreen * gkBlindPixelQEGreen );
283
284 fFluxInsidePlexiglass *= TMath::Power(10,gkBlindPixelAttGreen); // correct for absorption
285 // attenuation has negligible error
286 break;
287 case kBLUE:
288 fFluxInsidePlexiglass /= gkBlindPixelQEBlue;
289 fFluxInsidePlexiglassVar += gkBlindPixelQEBlueErr * gkBlindPixelQEBlueErr
290 / ( gkBlindPixelQEBlue * gkBlindPixelQEBlue );
291
292 fFluxInsidePlexiglass *= TMath::Power(10,gkBlindPixelAttBlue); // correct for absorption
293 // attenuation has negligible error
294 break;
295 case kUV:
296 fFluxInsidePlexiglass /= gkBlindPixelQEUV;
297 fFluxInsidePlexiglassVar += gkBlindPixelQEUVErr* gkBlindPixelQEUVErr
298 / ( gkBlindPixelQEUV * gkBlindPixelQEUV );
299
300 fFluxInsidePlexiglass *= TMath::Power(10,gkBlindPixelAttUV); // correct for absorption
301 // attenuation has negligible error
302 break;
303 case kCT1:
304 default:
305 fFluxInsidePlexiglass /= gkBlindPixelQECT1;
306 fFluxInsidePlexiglassVar += gkBlindPixelQECT1Err * gkBlindPixelQECT1Err
307 / ( gkBlindPixelQECT1 * gkBlindPixelQECT1 );
308
309 fFluxInsidePlexiglass *= TMath::Power(10,gkBlindPixelAttCT1); // correct for absorption
310 // attenuation has negligible error
311 break;
312 }
313
314 *fLog << inf << endl;
315 *fLog << inf << " Photon flux [ph/mm^2] inside Plexiglass: "
316 << fFluxInsidePlexiglass << endl;
317
318 if (fFluxInsidePlexiglass < 0.)
319 return kFALSE;
320
321 if (fFluxInsidePlexiglassVar < 0.)
322 return kFALSE;
323
324 SetFluxInsidePlexiglassAvailable(kTRUE);
325
326 //
327 // Finish calculation of errors -> convert from relative variance to absolute variance
328 //
329 fFluxInsidePlexiglassVar *= fFluxInsidePlexiglass * fFluxInsidePlexiglass;
330
331 *fLog << inf << " Error on photon flux [ph/mm^2] inside Plexiglass: "
332 << GetFluxInsidePlexiglass() << endl;
333 *fLog << inf << endl;
334
335 return kTRUE;
336}
337
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