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4c039060 | 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 | $Log$ | |
e73d68f2 | 18 | Revision 1.23 2001/09/19 18:41:45 alla |
19 | Asimmetric START geometry | |
20 | ||
a94466c5 | 21 | Revision 1.22 2001/07/27 13:03:12 hristov |
22 | Default Branch split level set to 99 | |
23 | ||
d0f40f23 | 24 | Revision 1.21 2001/06/27 16:06:59 hristov |
25 | Rotation matrix in BuildGeometry has been changed to rotx999 | |
26 | ||
44b06417 | 27 | Revision 1.20.2.1 2001/06/27 10:51:15 alla |
28 | Rotation matrix in BuildGeometry has benn changed to rotx999 | |
29 | ||
30 | Revision 1.20 2001/05/16 14:57:21 alibrary | |
31 | New files for folders and Stack | |
32 | ||
9e1a0ddb | 33 | Revision 1.19 2001/04/04 12:10:18 alla |
34 | changes according Coding Convension | |
35 | ||
2ca99a7f | 36 | Revision 1.18 2001/03/12 17:46:43 hristov |
37 | Changes needed on Sun with CC 5.0 | |
38 | ||
5cf7bbad | 39 | Revision 1.17 2001/01/26 19:59:53 hristov |
40 | Major upgrade of AliRoot code | |
41 | ||
2ab0c725 | 42 | Revision 1.16 2001/01/17 10:56:08 hristov |
43 | Corrections to destructors | |
44 | ||
bff160c8 | 45 | Revision 1.15 2001/01/01 13:10:42 hristov |
46 | Local definition of digits removed | |
47 | ||
9d0cd3ab | 48 | Revision 1.14 2000/12/22 16:17:15 hristov |
49 | Updated START code from Alla | |
50 | ||
f3ed336b | 51 | Revision 1.13 2000/12/18 11:39:41 alibrary |
52 | Quick fix to avoid crash in display waiting for new version | |
53 | ||
b169435d | 54 | Revision 1.12 2000/12/04 08:48:19 alibrary |
55 | Fixing problems in the HEAD | |
56 | ||
0cc62300 | 57 | Revision 1.11 2000/10/13 13:14:08 hristov |
58 | Bug fixes and code cleaning | |
59 | ||
528332ba | 60 | Revision 1.10 2000/10/02 21:28:13 fca |
61 | Removal of useless dependecies via forward declarations | |
62 | ||
94de3818 | 63 | Revision 1.9 2000/07/13 16:41:29 fca |
64 | New START corrected for coding conventions | |
65 | ||
ef51244a | 66 | Revision 1.8 2000/03/27 17:24:25 alla |
67 | Modifing geometry | |
68 | ||
c345bb4f | 69 | Revision 1.6 2000/01/21 15:45:23 fca |
70 | New Version from Alla | |
71 | ||
971579f6 | 72 | Revision 1.5 2000/01/19 17:17:15 fca |
73 | Introducing a list of lists of hits -- more hits allowed for detector now | |
74 | ||
1cedd08a | 75 | Revision 1.4 1999/11/12 15:04:00 fca |
76 | Modifications from A.Maevskaya | |
77 | ||
82fc3fb3 | 78 | Revision 1.3 1999/09/29 09:24:29 fca |
79 | Introduction of the Copyright and cvs Log | |
80 | ||
4c039060 | 81 | */ |
82 | ||
6ca40650 | 83 | /////////////////////////////////////////////////////////////////////////////// |
84 | // // | |
85 | // START (T-Zero) Detector // | |
86 | // This class contains the base procedures for the START // | |
87 | // detector // | |
88 | // // | |
89 | //Begin_Html | |
90 | /* | |
91 | <img src="gif/AliSTARTClass.gif"> | |
92 | </pre> | |
93 | <br clear=left> | |
94 | <font size=+2 color=red> | |
95 | <p>The responsible person for this module is | |
96 | <a href="mailto:Alla.Maevskaia@cern.ch">Alla Maevskaia</a>. | |
97 | </font> | |
98 | <pre> | |
99 | */ | |
100 | //End_Html | |
101 | // // | |
102 | // // | |
103 | /////////////////////////////////////////////////////////////////////////////// | |
104 | ||
6ca40650 | 105 | #include <iostream.h> |
106 | #include <fstream.h> | |
971579f6 | 107 | |
108 | #include "TMath.h" | |
109 | #include "TTUBE.h" | |
110 | #include "TNode.h" | |
c345bb4f | 111 | #include "TRandom.h" |
971579f6 | 112 | #include "TGeometry.h" |
2ab0c725 | 113 | #include "TFile.h" |
0cc62300 | 114 | #include "TParticle.h" |
2ab0c725 | 115 | |
971579f6 | 116 | #include "AliRun.h" |
117 | #include "AliSTART.h" | |
118 | #include "AliSTARTdigit.h" | |
6ca40650 | 119 | #include "AliMC.h" |
971579f6 | 120 | #include "AliSTARThit.h" |
e73d68f2 | 121 | #include "AliSTARThitPhoton.h" |
c345bb4f | 122 | #include "AliSTARTvertex.h" |
971579f6 | 123 | |
6ca40650 | 124 | ClassImp(AliSTART) |
ef51244a | 125 | |
126 | static AliSTARTdigit *digits; | |
127 | ||
6ca40650 | 128 | //_____________________________________________________________________________ |
99560b47 | 129 | AliSTART::AliSTART() |
6ca40650 | 130 | { |
131 | // | |
132 | // Default constructor for class AliSTART | |
133 | // | |
f3ed336b | 134 | fIshunt = 1; |
971579f6 | 135 | fHits = 0; |
136 | fDigits = 0; | |
e73d68f2 | 137 | fPhotons = 0; |
6ca40650 | 138 | } |
139 | ||
140 | //_____________________________________________________________________________ | |
141 | AliSTART::AliSTART(const char *name, const char *title) | |
142 | : AliDetector(name,title) | |
143 | { | |
144 | // | |
145 | // Standard constructor for START Detector | |
146 | // | |
971579f6 | 147 | |
c345bb4f | 148 | |
6ca40650 | 149 | // |
150 | // Initialise Hit array | |
971579f6 | 151 | fHits = new TClonesArray("AliSTARThit", 405); |
b169435d | 152 | gAlice->AddHitList(fHits); |
e73d68f2 | 153 | |
154 | fPhotons = new TClonesArray("AliSTARThitPhoton", 10000); | |
155 | gAlice->AddHitList (fPhotons); | |
6ca40650 | 156 | |
f3ed336b | 157 | fIshunt = 1; |
c345bb4f | 158 | fIdSens = 0; |
e73d68f2 | 159 | fNPhotons = 0; |
6ca40650 | 160 | SetMarkerColor(kRed); |
161 | } | |
bff160c8 | 162 | |
163 | //_____________________________________________________________________________ | |
164 | AliSTART::~AliSTART() { | |
165 | if (fHits) { | |
166 | fHits->Delete(); | |
167 | delete fHits; | |
168 | } | |
e73d68f2 | 169 | if (fPhotons) { |
170 | fPhotons->Delete(); | |
171 | delete fPhotons; | |
172 | } | |
bff160c8 | 173 | } |
6ca40650 | 174 | |
175 | //_____________________________________________________________________________ | |
176 | void AliSTART::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
177 | { | |
178 | // | |
179 | // Add a START hit | |
180 | // | |
181 | TClonesArray &lhits = *fHits; | |
182 | new(lhits[fNhits++]) AliSTARThit(fIshunt,track,vol,hits); | |
183 | } | |
971579f6 | 184 | |
e73d68f2 | 185 | //_____________________________________________________________________________ |
186 | void AliSTART::AddHitPhoton(Int_t track, Int_t *vol, Float_t *hits) | |
187 | { | |
188 | // Add a START hit of photons | |
189 | ||
190 | TClonesArray &lhits = *fPhotons; | |
191 | new(lhits[fNPhotons++]) AliSTARThitPhoton(fIshunt,track,vol,hits); | |
192 | } | |
193 | ||
971579f6 | 194 | //_____________________________________________________________________________ |
c345bb4f | 195 | |
971579f6 | 196 | void AliSTART::AddDigit(Int_t *tracks,Int_t *digits) |
197 | { | |
c345bb4f | 198 | |
f3ed336b | 199 | // Add a START digit to the list. Dummy function. |
c345bb4f | 200 | |
971579f6 | 201 | } |
c345bb4f | 202 | |
6ca40650 | 203 | //_____________________________________________________________________________ |
204 | void AliSTART::BuildGeometry() | |
205 | { | |
206 | // | |
207 | // Build simple ROOT TNode geometry for event display | |
208 | // | |
ef51244a | 209 | TNode *node, *top; |
6ca40650 | 210 | const int kColorSTART = 19; |
f3ed336b | 211 | |
ef51244a | 212 | top=gAlice->GetGeometry()->GetNode("alice"); |
6ca40650 | 213 | |
214 | // START define the different volumes | |
44b06417 | 215 | new TRotMatrix("rotx999","rot999", 90,0,90,90,180,0); |
6ca40650 | 216 | |
2ca99a7f | 217 | new TTUBE("S_0ST1","START volume 1","void",5.,10.7,5.3); |
ef51244a | 218 | top->cd(); |
a94466c5 | 219 | node = new TNode("0ST1","0ST01","S_0ST1",0,0,69.7,""); |
ef51244a | 220 | node->SetLineColor(kColorSTART); |
221 | fNodes->Add(node); | |
6ca40650 | 222 | |
2ca99a7f | 223 | new TTUBE("S_0ST2","START volume 2","void",5.,10.7,5.3); |
ef51244a | 224 | top->cd(); |
a94466c5 | 225 | node = new TNode("0ST2","0ST2","S_0ST2",0,0,-350,"rotx999"); |
ef51244a | 226 | node->SetLineColor(kColorSTART); |
227 | fNodes->Add(node); | |
6ca40650 | 228 | } |
229 | ||
230 | //_____________________________________________________________________________ | |
231 | Int_t AliSTART::DistanceToPrimitive(Int_t px, Int_t py) | |
232 | { | |
233 | // | |
234 | // Calculate the distance from the mouse to the START on the screen | |
235 | // Dummy routine | |
236 | // | |
237 | return 9999; | |
238 | } | |
239 | ||
6ca40650 | 240 | //------------------------------------------------------------------------- |
241 | void AliSTART::Init() | |
242 | { | |
243 | // | |
244 | // Initialis the START after it has been built | |
245 | Int_t i; | |
6ca40650 | 246 | // |
9e1a0ddb | 247 | if(fDebug) { |
248 | printf("\n%s: ",ClassName()); | |
249 | for(i=0;i<35;i++) printf("*"); | |
250 | printf(" START_INIT "); | |
251 | for(i=0;i<35;i++) printf("*"); | |
252 | printf("\n%s: ",ClassName()); | |
253 | // | |
254 | // Here the START initialisation code (if any!) | |
255 | for(i=0;i<80;i++) printf("*"); | |
256 | printf("\n"); | |
257 | } | |
6ca40650 | 258 | } |
259 | ||
260 | //--------------------------------------------------------------------------- | |
9e1a0ddb | 261 | void AliSTART::MakeBranch(Option_t* option, const char *file) |
6ca40650 | 262 | { |
ef51244a | 263 | // |
264 | // Specific START branches | |
265 | // | |
6ca40650 | 266 | // Create Tree branches for the START. |
e73d68f2 | 267 | Int_t buffersize = 4000; |
268 | char branchname[20]; | |
6ca40650 | 269 | sprintf(branchname,"%s",GetName()); |
270 | ||
2ab0c725 | 271 | AliDetector::MakeBranch(option,file); |
6ca40650 | 272 | |
5cf7bbad | 273 | const char *cD = strstr(option,"D"); |
e73d68f2 | 274 | const char *cH = strstr(option,"H"); |
275 | ||
276 | if (cH) | |
277 | { | |
278 | sprintf (branchname, "%shitPhoton", GetName()); | |
279 | MakeBranchInTree (gAlice->TreeH(), branchname, &fPhotons, 50000, file); | |
280 | } | |
281 | ||
2ab0c725 | 282 | |
283 | if (cD) { | |
284 | digits = new AliSTARTdigit(); | |
9e1a0ddb | 285 | MakeBranchInTree(gAlice->TreeD(), |
286 | branchname, "AliSTARTdigit", digits, buffersize, 1, file); | |
2ab0c725 | 287 | } |
c345bb4f | 288 | /* |
2ab0c725 | 289 | char *cR = strstr(option,"R"); |
290 | ||
291 | if (cR) { | |
9e1a0ddb | 292 | MakeBranchInTree(gAlice->TreeR(), |
293 | branchname, "Int_t", &fZposit, buffersize, 1, file); | |
2ab0c725 | 294 | } |
c345bb4f | 295 | */ |
6ca40650 | 296 | } |
971579f6 | 297 | |
e73d68f2 | 298 | //_____________________________________________________________________________ |
299 | void AliSTART::ResetHits() | |
300 | { | |
301 | AliDetector::ResetHits(); | |
302 | ||
303 | fNPhotons = 0; | |
304 | if (fPhotons) fPhotons->Clear(); | |
305 | } | |
306 | ||
307 | //_____________________________________________________________________________ | |
308 | void AliSTART::SetTreeAddress() | |
309 | { | |
310 | TBranch *branch; | |
311 | TTree *treeH; | |
312 | ||
313 | AliDetector::SetTreeAddress(); | |
314 | treeH = gAlice->TreeH(); | |
315 | ||
316 | if (treeH) | |
317 | if (fPhotons) | |
318 | { | |
319 | branch = treeH->GetBranch ("STARThitPhoton"); | |
320 | if (branch) branch->SetAddress (&fPhotons); | |
321 | } | |
322 | } | |
323 | ||
324 | ||
971579f6 | 325 | //_____________________________________________________________________________ |
c345bb4f | 326 | |
971579f6 | 327 | void AliSTART::Hit2digit(Int_t evnum) |
328 | { | |
ef51244a | 329 | // |
330 | // From hits to digits | |
331 | // | |
e73d68f2 | 332 | /* |
ef51244a | 333 | Float_t x,y,e; |
971579f6 | 334 | Int_t nbytes = 0; |
ef51244a | 335 | Int_t hit; |
971579f6 | 336 | Int_t nhits; |
337 | Int_t volume,pmt; | |
c345bb4f | 338 | char nameTH[8],nameTD[8]; |
339 | Float_t timediff,timeright,timeleft,timeav; | |
340 | Float_t besttimeright,besttimeleft,meanTime; | |
ef51244a | 341 | Int_t channelWidth=10; |
971579f6 | 342 | |
343 | TParticle *particle; | |
971579f6 | 344 | AliSTARThit *startHit; |
345 | ||
c345bb4f | 346 | Int_t buffersize=256; |
c345bb4f | 347 | |
348 | digits= new AliSTARTdigit(); | |
349 | TBranch *bDig=0; | |
971579f6 | 350 | |
c345bb4f | 351 | |
352 | // Event ------------------------- LOOP | |
353 | ||
354 | sprintf(nameTD,"TreeD%d",evnum); | |
ef51244a | 355 | TTree *td = new TTree(nameTD,"START"); |
d0f40f23 | 356 | bDig = td->Branch("START","AliSTARTdigit",&digits,buffersize); |
971579f6 | 357 | |
358 | besttimeright=9999.; | |
359 | besttimeleft=9999.; | |
ef51244a | 360 | Int_t timeDiff=0; |
361 | Int_t timeAv=0; | |
971579f6 | 362 | |
363 | Int_t nparticles = gAlice->GetEvent(evnum); | |
364 | if (nparticles <= 0) return; | |
365 | printf("\n nparticles %d\n",nparticles); | |
366 | ||
c345bb4f | 367 | |
971579f6 | 368 | sprintf(nameTH,"TreeH%d",evnum); |
369 | printf("%s\n",nameTH); | |
ef51244a | 370 | TTree *th = gAlice->TreeH(); |
371 | Int_t ntracks = (Int_t) th->GetEntries(); | |
971579f6 | 372 | if (ntracks<=0) return; |
373 | // Start loop on tracks in the hits containers | |
374 | for (Int_t track=0; track<ntracks;track++) { | |
375 | gAlice->ResetHits(); | |
ef51244a | 376 | nbytes += th->GetEvent(track); |
2ab0c725 | 377 | particle=gAlice->Particle(track); |
c345bb4f | 378 | nhits =fHits->GetEntriesFast(); |
379 | ||
971579f6 | 380 | for (hit=0;hit<nhits;hit++) { |
381 | startHit = (AliSTARThit*)fHits->UncheckedAt(hit); | |
382 | pmt=startHit->fPmt; | |
383 | e=startHit->fEtot; | |
94de3818 | 384 | x=startHit->X(); |
385 | y=startHit->Y(); | |
971579f6 | 386 | volume = startHit->fVolume; |
387 | if(volume==1){ | |
388 | timeright = startHit->fTime; | |
389 | if(timeright<besttimeright) { | |
390 | besttimeright=timeright; | |
971579f6 | 391 | } //timeright |
392 | }//time for right shoulder | |
393 | if(volume==2){ | |
394 | timeleft = startHit->fTime; | |
395 | // printf("timeleft %f\n",timeleft); | |
396 | if(timeleft<besttimeleft) { | |
397 | besttimeleft=timeleft; | |
971579f6 | 398 | } //timeleftbest |
399 | }//time for left shoulder | |
400 | } //hit loop | |
401 | } //track loop | |
971579f6 | 402 | |
c345bb4f | 403 | //folding with experimental time distribution |
ef51244a | 404 | Float_t besttimerightGaus=gRandom->Gaus(besttimeright,0.05); |
405 | Float_t besttimeleftGaus=gRandom->Gaus(besttimeleft,0.05); | |
406 | timediff=besttimerightGaus-besttimeleftGaus; | |
407 | meanTime=(besttimerightGaus+besttimeleftGaus)/2.; | |
408 | if ( TMath::Abs(timediff)<2. && meanTime<3.) | |
c345bb4f | 409 | { |
ef51244a | 410 | //we assume centre of bunch is 5ns after TTS signal |
411 | //TOF values are relative of the end of bunch | |
412 | Float_t ppBunch=25; | |
971579f6 | 413 | |
ef51244a | 414 | ppBunch=ppBunch-10/2; |
c345bb4f | 415 | Float_t t1=1000.*besttimeleftGaus; |
416 | Float_t t2=1000.*besttimerightGaus; | |
ef51244a | 417 | t1=t1/channelWidth+ppBunch; //time in ps to channelWidth |
418 | t2=t2/channelWidth+ppBunch; //time in ps to channelWidth | |
c345bb4f | 419 | |
420 | timeav=(t1+t2)/2.; | |
421 | ||
422 | // Time to TDC signal | |
423 | // 256 channels for timediff, range 1ns | |
424 | ||
ef51244a | 425 | timediff=128+1000*timediff/channelWidth; // time in ps |
426 | ||
427 | timeAv = (Int_t)(timeav); // time (ps) channel numbres | |
428 | timeDiff = (Int_t)(timediff); // time ( ps) channel numbres | |
429 | digits->Set(timeAv,timeDiff); | |
430 | } | |
f3ed336b | 431 | else |
432 | {timeAv=999999; timeDiff=99999;} | |
433 | ||
434 | td->Fill(); | |
435 | printf("digits-> %d \n",digits->GetTime()); | |
436 | td->Write(); | |
e73d68f2 | 437 | */ |
f3ed336b | 438 | } |
c345bb4f | 439 | |
440 | ||
441 | ||
442 | ||
443 | ||
444 | ||
445 | ||
446 | ||
447 | ||
6ca40650 | 448 | |
971579f6 | 449 | |
ef51244a | 450 | |
971579f6 | 451 | |
c345bb4f | 452 |