1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 #include <Riostream.h>
21 #include "AliITSresponseSDD.h"
23 //////////////////////////////////////////////////
24 // Response class for set:ITS //
25 // Specific subdetector implementation //
26 // for silicon drift detectors //
29 //////////////////////////////////////////////////////
31 const Int_t AliITSresponseSDD::fgkModules;
32 const Int_t AliITSresponseSDD::fgkChips;
33 const Int_t AliITSresponseSDD::fgkChannels;
34 const Int_t AliITSresponseSDD::fgkMaxAdcDefault = 1024;
35 const Float_t AliITSresponseSDD::fgkDynamicRangeDefault = 132.;
36 const Float_t AliITSresponseSDD::fgkfChargeLossDefault = 0;
37 const Float_t AliITSresponseSDD::fgkDiffCoeffDefault = 3.23;
38 const Float_t AliITSresponseSDD::fgkDiffCoeff1Default = 30.;
39 const Float_t AliITSresponseSDD::fgkTemperatureDefault = 296.;
40 const TString AliITSresponseSDD::fgkParam1Default = "same";
41 const TString AliITSresponseSDD::fgkParam2Default = "same";
42 const Float_t AliITSresponseSDD::fgkNoiseDefault = 10.;
43 const Float_t AliITSresponseSDD::fgkBaselineDefault = 20.;
44 const TString AliITSresponseSDD::fgkOptionDefault = "1D";
45 const Float_t AliITSresponseSDD::fgkMinValDefault = 4;
46 const Float_t AliITSresponseSDD::fgkDriftSpeedDefault = 7.3;
47 const Float_t AliITSresponseSDD::fgkNsigmasDefault = 3.;
48 const Int_t AliITSresponseSDD::fgkNcompsDefault = 121;
49 //______________________________________________________________________
50 ClassImp(AliITSresponseSDD)
52 AliITSresponseSDD::AliITSresponseSDD(){
53 // default constructor
56 SetMaxAdc(fgkMaxAdcDefault);
57 SetDiffCoeff(fgkDiffCoeffDefault,fgkDiffCoeff1Default);
58 SetDriftSpeed(fgkDriftSpeedDefault);
59 SetNSigmaIntegration(fgkNsigmasDefault);
60 SetNLookUp(fgkNcompsDefault);
62 SetNoiseParam(fgkNoiseDefault,fgkBaselineDefault);
63 SetNoiseAfterElectronics();
66 SetDynamicRange(fgkDynamicRangeDefault);
67 SetChargeLoss(fgkfChargeLossDefault);
68 SetThresholds(fgkMinValDefault,0.);
69 SetParamOptions(fgkParam1Default.Data(),fgkParam2Default.Data());
70 SetTemperature(fgkTemperatureDefault);
71 SetZeroSupp(fgkOptionDefault);
76 // set the default zero suppression parameters
77 fCPar[0]=(Int_t) fBaseline;
78 fCPar[1]=(Int_t) fBaseline;
79 fCPar[2]=(Int_t)(2.*fNoiseAfterEl + 0.5);
80 fCPar[3]=(Int_t)(2.*fNoiseAfterEl + 0.5);
86 //______________________________________________________________________
87 AliITSresponseSDD::AliITSresponseSDD(const char *dataType){
91 SetMaxAdc(fgkMaxAdcDefault);
92 SetDiffCoeff(fgkDiffCoeffDefault,fgkDiffCoeff1Default);
93 SetDriftSpeed(fgkDriftSpeedDefault);
94 SetNSigmaIntegration(fgkNsigmasDefault);
95 SetNLookUp(fgkNcompsDefault);
97 SetNoiseParam(fgkNoiseDefault,fgkBaselineDefault);
98 SetNoiseAfterElectronics();
101 SetDynamicRange(fgkDynamicRangeDefault);
102 SetChargeLoss(fgkfChargeLossDefault);
103 SetThresholds(fgkMinValDefault,0.);
104 SetParamOptions(fgkParam1Default.Data(),fgkParam2Default.Data());
105 SetTemperature(fgkTemperatureDefault);
106 SetZeroSupp(fgkOptionDefault);
107 SetDataType(dataType);
111 // set the default zero suppression parameters
112 fCPar[0]=(Int_t) fBaseline;
113 fCPar[1]=(Int_t) fBaseline;
114 fCPar[2]=(Int_t)(2.*fNoiseAfterEl + 0.5);
115 fCPar[3]=(Int_t)(2.*fNoiseAfterEl + 0.5);
121 //______________________________________________________________________
122 AliITSresponseSDD::AliITSresponseSDD(const AliITSresponseSDD &ob) : AliITSresponse(ob) {
124 // Copies are not allowed. The method is protected to avoid misuse.
125 Error("AliITSresponseSDD","Copy constructor not allowed\n");
128 //______________________________________________________________________
129 AliITSresponseSDD& AliITSresponseSDD::operator=(const AliITSresponseSDD& /* ob */){
130 // Assignment operator
131 // Assignment is not allowed. The method is protected to avoid misuse.
132 Error("= operator","Assignment operator not allowed\n");
136 //______________________________________________________________________
137 AliITSresponseSDD::~AliITSresponseSDD() {
139 if(fGaus) delete fGaus;
142 //______________________________________________________________________
143 Int_t AliITSresponseSDD::Convert8to10(Int_t signal) const {
144 // Undo the lossive 10 to 8 bit compression.
145 // code from Davide C. and Albert W.
146 if(Do10to8()){ // kTRUE if the compression is active
147 if (signal < 0 || signal > 255) {
148 Warning("Convert8to10","out of range signal=%d",signal);
150 } // end if signal <0 || signal >255
152 if (signal < 128) return signal;
154 if (TMath::Odd(signal)) return (128+((signal-128)<<1));
155 else return (128+((signal-128)<<1)+1);
156 } // end if signal < 192
158 if (TMath::Odd(signal)) return (256+((signal-192)<<3)+3);
159 else return (256+((signal-192)<<3)+4);
160 } // end if signal < 224
161 if (TMath::Odd(signal)) return (512+((signal-224)<<4)+7);
162 return (512+((signal-224)<<4)+8);
169 //______________________________________________________________________
170 void AliITSresponseSDD::SetCompressParam(Int_t cp[8]){
171 // set compression param
174 for (i=0; i<8; i++) {
176 //printf("\n CompressPar %d %d \n",i,fCPar[i]);
179 //______________________________________________________________________
180 void AliITSresponseSDD::GiveCompressParam(Int_t cp[8]) const {
181 // give compression param
184 for (i=0; i<8; i++) {
188 //______________________________________________________________________
189 void AliITSresponseSDD::SetNLookUp(Int_t p1){
190 // Set number of sigmas over which cluster disintegration is performed
192 fGaus = new TArrayF(fNcomps+1);
193 for(Int_t i=0; i<=fNcomps; i++) {
194 Float_t x = -fNsigmas + (2.*i*fNsigmas)/(fNcomps-1);
195 (*fGaus)[i] = exp(-((x*x)/2));
196 // cout << "fGaus[" << i << "]: " << fGaus->At(i) << endl;
199 //______________________________________________________________________
200 void AliITSresponseSDD::SetDeadChannels(Int_t nmod, Int_t nchip, Int_t nchan){
201 // Set fGain to zero to simulate a random distribution of
202 // dead modules, dead chips and single dead channels
204 for( Int_t m=0; m<fgkModules; m++ )
205 for( Int_t n=0; n<fgkChips; n++ )
206 for( Int_t p=0; p<fgkChannels; p++ )
211 fDeadChannels = nchan;
214 if( nmod == 0 && nchip == 0 && nchan == 0 ) return;
216 if( nmod < 0 || nmod > fgkModules )
218 cout << "Wrong number of dead modules: " << nmod << endl;
221 Int_t nmax = (fgkModules-nmod)*fgkChips;
222 if( nchip < 0 || nchip > nmax )
224 cout << "Wrong number of dead chips: " << nchip << endl;
227 nmax = ((fgkModules - nmod)*fgkChips - nchip)*fgkChannels;
228 if( nchan < 0 || nchan > nmax )
230 cout << "Wrong number of dead channels: " << nchan << endl;
234 TRandom *gran = new TRandom();
236 // cout << "modules" << endl;
237 Int_t * mod = new Int_t [nmod];
238 Int_t i; //loop variable
239 for( i=0; i<nmod; i++ )
241 mod[i] = (Int_t) (1.+fgkModules*gran->Uniform());
242 cout << i+1 << ": Dead module nr: " << mod[i] << endl;
243 for(Int_t n=0; n<fgkChips; n++)
244 for(Int_t p=0; p<fgkChannels; p++)
245 fGain[mod[i]-1][n][p] = 0.;
248 // cout << "chips" << endl;
249 Int_t * chip = new Int_t[nchip];
250 Int_t * chipMod = new Int_t[nchip];
254 Int_t module = (Int_t) (fgkModules*gran->Uniform() + 1.);
255 if( module <=0 || module > fgkModules )
256 cout << "Wrong module: " << module << endl;
258 for( Int_t k=0; k<nmod; k++ )
259 if( module == mod[k] ) { flagMod = 1; break; }
260 if( flagMod == 1 ) continue;
262 Int_t chi = (Int_t) (fgkChips*gran->Uniform() + 1.);
263 if( chi <=0 || chi > fgkChips ) cout << "Wrong chip: " << chi << endl;
266 chipMod[i-1] = module;
267 for( Int_t m=0; m<fgkChannels; m++ )
268 fGain[module-1][chi-1][m] = 0.;
269 cout << i << ": Dead chip nr. " << chip[i-1] << " in module nr: "
270 << chipMod[i-1] << endl;
273 // cout << "channels" << endl;
274 Int_t * channel = new Int_t[nchan];
275 Int_t * channelChip = new Int_t[nchan];
276 Int_t * channelMod = new Int_t[nchan];
280 Int_t k; //loop variable
281 Int_t module = (Int_t) (fgkModules*gran->Uniform() + 1.);
282 if( module <=0 || module > fgkModules )
283 cout << "Wrong module: " << module << endl;
285 for( k=0; k<nmod; k++ )
286 if( module == mod[k] ) { flagMod = 1; break; }
287 if( flagMod == 1 ) continue;
288 Int_t chipp = (Int_t) (fgkChips*gran->Uniform() + 1.);
289 if( chipp <=0 || chipp > fgkChips ) cout << "Wrong chip: "<< chipp<<endl;
291 for( k=0; k<nchip; k++)
292 if( chipp == chip[k] && module == chipMod[k] ) {
293 flagChip = 1; break; }
294 if( flagChip == 1 ) continue;
296 channel[i-1] = (Int_t) (fgkChannels*gran->Uniform() + 1.);
297 if( channel[i-1] <=0 || channel[i-1] > fgkChannels )
298 cout << "Wrong channel: " << channel[i-1] << endl;
299 channelChip[i-1] = chipp;
300 channelMod[i-1] = module;
301 fGain[module-1][chipp-1][channel[i-1]-1] = 0.;
302 cout << i << ": Dead channel nr. " << channel[i-1] << " in chip nr. "
303 << channelChip[i-1] << " in module nr: " << channelMod[i-1]
311 delete [] channelMod;
312 delete [] channelChip;
314 //______________________________________________________________________
315 void AliITSresponseSDD::PrintGains(){
318 if( GetDeadModules() == 0 &&
319 GetDeadChips() == 0 &&
320 GetDeadChannels() == 0 )
323 // Print Electronics Gains
324 cout << "**************************************************" << endl;
325 cout << " Print Electronics Gains " << endl;
326 cout << "**************************************************" << endl;
328 // Print SDD electronic gains
329 for(Int_t t=0; t<fgkModules;t++)
330 for(Int_t u=0; u<fgkChips;u++)
331 for(Int_t v=0; v<fgkChannels;v++)
333 if( fGain[t][u][v] != 1.0 )
334 cout << "Gain for Module: " << t+1 << ", Chip " << u+1 <<
335 ", Channel " << v+1 << " = " << fGain[t][u][v] << endl;
338 //______________________________________________________________________
339 void AliITSresponseSDD::Print(){
340 // Print SDD response Parameters
342 cout << "**************************************************" << endl;
343 cout << " Silicon Drift Detector Response Parameters " << endl;
344 cout << "**************************************************" << endl;
345 cout << "Diffusion Coefficients: "<< fDiffCoeff<< ", "<<fDiffCoeff1 << endl;
347 cout << "Hardware compression parameters: " << endl;
348 for(Int_t i=0; i<8; i++) cout << "fCPar[" << i << "] = " << fCPar[i] <<endl;
349 cout << "Noise before electronics (arbitrary units): " << fNoise << endl;
350 cout << "Baseline (ADC units): " << fBaseline << endl;
351 cout << "Noise after electronics (ADC units): " << fNoiseAfterEl << endl;
353 cout << "Dynamic Range: " << fDynamicRange << endl;
354 cout << "Charge Loss: " << fChargeLoss << endl;
355 cout << "Temperature: " << Temperature() << " K " << endl;
356 cout << "Drift Speed: " << fDriftSpeed << endl;
357 cout << "Electronics (1=PASCAL, 2=OLA): " << fElectronics << endl;
359 cout << "N. of Sigma for signal integration: " << fNsigmas << endl;
360 cout << "N. of bins in lookup table: " << fNcomps << endl;
362 cout << "Max. ADC Value: " << fMaxAdc << endl;
363 cout << "Min. Value: " << fMinVal << endl;