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
79 fCPar[2]=(Int_t)(fBaseline + 2.*fNoiseAfterEl + 0.5);
80 fCPar[3]=(Int_t)(fBaseline + 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
114 fCPar[2]=(Int_t)(fBaseline + 2.*fNoiseAfterEl + 0.5);
115 fCPar[3]=(Int_t)(fBaseline + 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;
141 //______________________________________________________________________
142 void AliITSresponseSDD::SetCompressParam(Int_t cp[8]){
143 // set compression param
146 for (i=0; i<8; i++) {
148 //printf("\n CompressPar %d %d \n",i,fCPar[i]);
151 //______________________________________________________________________
152 void AliITSresponseSDD::GiveCompressParam(Int_t cp[8]) const {
153 // give compression param
156 for (i=0; i<8; i++) {
160 //______________________________________________________________________
161 void AliITSresponseSDD::SetNLookUp(Int_t p1){
162 // Set number of sigmas over which cluster disintegration is performed
164 fGaus = new TArrayF(fNcomps+1);
165 for(Int_t i=0; i<=fNcomps; i++) {
166 Float_t x = -fNsigmas + (2.*i*fNsigmas)/(fNcomps-1);
167 (*fGaus)[i] = exp(-((x*x)/2));
168 // cout << "fGaus[" << i << "]: " << fGaus->At(i) << endl;
171 //______________________________________________________________________
172 void AliITSresponseSDD::SetDeadChannels(Int_t nmod, Int_t nchip, Int_t nchan){
173 // Set fGain to zero to simulate a random distribution of
174 // dead modules, dead chips and single dead channels
176 for( Int_t m=0; m<fgkModules; m++ )
177 for( Int_t n=0; n<fgkChips; n++ )
178 for( Int_t p=0; p<fgkChannels; p++ )
183 fDeadChannels = nchan;
186 if( nmod == 0 && nchip == 0 && nchan == 0 ) return;
188 if( nmod < 0 || nmod > fgkModules )
190 cout << "Wrong number of dead modules: " << nmod << endl;
193 Int_t nmax = (fgkModules-nmod)*fgkChips;
194 if( nchip < 0 || nchip > nmax )
196 cout << "Wrong number of dead chips: " << nchip << endl;
199 nmax = ((fgkModules - nmod)*fgkChips - nchip)*fgkChannels;
200 if( nchan < 0 || nchan > nmax )
202 cout << "Wrong number of dead channels: " << nchan << endl;
206 TRandom *gran = new TRandom();
208 // cout << "modules" << endl;
209 Int_t * mod = new Int_t [nmod];
210 Int_t i; //loop variable
211 for( i=0; i<nmod; i++ )
213 mod[i] = (Int_t) (1.+fgkModules*gran->Uniform());
214 cout << i+1 << ": Dead module nr: " << mod[i] << endl;
215 for(Int_t n=0; n<fgkChips; n++)
216 for(Int_t p=0; p<fgkChannels; p++)
217 fGain[mod[i]-1][n][p] = 0.;
220 // cout << "chips" << endl;
221 Int_t * chip = new Int_t[nchip];
222 Int_t * chipMod = new Int_t[nchip];
226 Int_t module = (Int_t) (fgkModules*gran->Uniform() + 1.);
227 if( module <=0 || module > fgkModules )
228 cout << "Wrong module: " << module << endl;
230 for( Int_t k=0; k<nmod; k++ )
231 if( module == mod[k] ) { flagMod = 1; break; }
232 if( flagMod == 1 ) continue;
234 Int_t chi = (Int_t) (fgkChips*gran->Uniform() + 1.);
235 if( chi <=0 || chi > fgkChips ) cout << "Wrong chip: " << chi << endl;
238 chipMod[i-1] = module;
239 for( Int_t m=0; m<fgkChannels; m++ )
240 fGain[module-1][chi-1][m] = 0.;
241 cout << i << ": Dead chip nr. " << chip[i-1] << " in module nr: "
242 << chipMod[i-1] << endl;
245 // cout << "channels" << endl;
246 Int_t * channel = new Int_t[nchan];
247 Int_t * channelChip = new Int_t[nchan];
248 Int_t * channelMod = new Int_t[nchan];
252 Int_t k; //loop variable
253 Int_t module = (Int_t) (fgkModules*gran->Uniform() + 1.);
254 if( module <=0 || module > fgkModules )
255 cout << "Wrong module: " << module << endl;
257 for( k=0; k<nmod; k++ )
258 if( module == mod[k] ) { flagMod = 1; break; }
259 if( flagMod == 1 ) continue;
260 Int_t chipp = (Int_t) (fgkChips*gran->Uniform() + 1.);
261 if( chipp <=0 || chipp > fgkChips ) cout << "Wrong chip: "<< chipp<<endl;
263 for( k=0; k<nchip; k++)
264 if( chipp == chip[k] && module == chipMod[k] ) {
265 flagChip = 1; break; }
266 if( flagChip == 1 ) continue;
268 channel[i-1] = (Int_t) (fgkChannels*gran->Uniform() + 1.);
269 if( channel[i-1] <=0 || channel[i-1] > fgkChannels )
270 cout << "Wrong channel: " << channel[i-1] << endl;
271 channelChip[i-1] = chipp;
272 channelMod[i-1] = module;
273 fGain[module-1][chipp-1][channel[i-1]-1] = 0.;
274 cout << i << ": Dead channel nr. " << channel[i-1] << " in chip nr. "
275 << channelChip[i-1] << " in module nr: " << channelMod[i-1]
283 delete [] channelMod;
284 delete [] channelChip;
286 //______________________________________________________________________
287 void AliITSresponseSDD::PrintGains(){
290 if( GetDeadModules() == 0 &&
291 GetDeadChips() == 0 &&
292 GetDeadChannels() == 0 )
295 // Print Electronics Gains
296 cout << "**************************************************" << endl;
297 cout << " Print Electronics Gains " << endl;
298 cout << "**************************************************" << endl;
300 // Print SDD electronic gains
301 for(Int_t t=0; t<fgkModules;t++)
302 for(Int_t u=0; u<fgkChips;u++)
303 for(Int_t v=0; v<fgkChannels;v++)
305 if( fGain[t][u][v] != 1.0 )
306 cout << "Gain for Module: " << t+1 << ", Chip " << u+1 <<
307 ", Channel " << v+1 << " = " << fGain[t][u][v] << endl;
310 //______________________________________________________________________
311 void AliITSresponseSDD::Print(){
312 // Print SDD response Parameters
314 cout << "**************************************************" << endl;
315 cout << " Silicon Drift Detector Response Parameters " << endl;
316 cout << "**************************************************" << endl;
317 cout << "Diffusion Coefficients: "<< fDiffCoeff<< ", "<<fDiffCoeff1 << endl;
319 cout << "Hardware compression parameters: " << endl;
320 for(Int_t i=0; i<8; i++) cout << "fCPar[" << i << "] = " << fCPar[i] <<endl;
321 cout << "Noise before electronics (arbitrary units): " << fNoise << endl;
322 cout << "Baseline (ADC units): " << fBaseline << endl;
323 cout << "Noise after electronics (ADC units): " << fNoiseAfterEl << endl;
325 cout << "Dynamic Range: " << fDynamicRange << endl;
326 cout << "Charge Loss: " << fChargeLoss << endl;
327 cout << "Temperature: " << Temperature() << " K " << endl;
328 cout << "Drift Speed: " << fDriftSpeed << endl;
329 cout << "Electronics (1=PASCAL, 2=OLA): " << fElectronics << endl;
331 cout << "N. of Sigma for signal integration: " << fNsigmas << endl;
332 cout << "N. of bins in lookup table: " << fNcomps << endl;
334 cout << "Max. ADC Value: " << fMaxAdc << endl;
335 cout << "Min. Value: " << fMinVal << endl;