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937fe4a4 | 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 | $Log$ | |
18 | Revision 1.9 1999/09/29 09:24:33 fca | |
19 | Introduction of the Copyright and cvs Log | |
20 | ||
21 | */ | |
22 | ||
23 | /////////////////////////////////////////////////////////////////////////////// | |
24 | // // | |
25 | // Time Of Flight: design of C.Williams FCA // | |
26 | // This class contains the functions for version 1 of the Time Of Flight // | |
27 | // detector. // | |
28 | // | |
29 | // VERSION WITH 5 MODULES AND FLAT PLATES | |
30 | // | |
31 | // WITH HOLES FOR PHOS AND HMPID | |
32 | // INSIDE A FULL COVERAGE SPACE FRAME | |
33 | // | |
34 | // | |
35 | // Authors: | |
36 | // | |
37 | // Alessio Seganti | |
38 | // Domenico Vicinanza | |
39 | // | |
40 | // University of Salerno - Italy | |
41 | // | |
42 | // | |
43 | //Begin_Html | |
44 | /* | |
45 | <img src="picts/AliTOFv5Class.gif"> | |
46 | */ | |
47 | //End_Html | |
48 | // // | |
49 | /////////////////////////////////////////////////////////////////////////////// | |
50 | ||
51 | #include "AliTOFv5.h" | |
52 | #include "AliRun.h" | |
53 | #include "AliConst.h" | |
54 | ||
55 | ClassImp(AliTOFv5) | |
56 | ||
57 | //_____________________________________________________________________________ | |
58 | AliTOFv5::AliTOFv5() | |
59 | { | |
60 | // | |
61 | // Default constructor | |
62 | // | |
63 | } | |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | AliTOFv5::AliTOFv5(const char *name, const char *title) | |
67 | : AliTOF(name,title) | |
68 | { | |
69 | // | |
70 | // Standard constructor | |
71 | // | |
72 | } | |
73 | ||
74 | //_____________________________________________________________________________ | |
75 | void AliTOFv5::CreateGeometry() | |
76 | { | |
77 | // | |
78 | // Create geometry for Time Of Flight version 0 | |
79 | // | |
80 | //Begin_Html | |
81 | /* | |
82 | <img src="picts/AliTOFv5.gif"> | |
83 | */ | |
84 | //End_Html | |
85 | // | |
86 | // Creates common geometry | |
87 | // | |
88 | AliTOF::CreateGeometry(); | |
89 | } | |
90 | ||
91 | //_____________________________________________________________________________ | |
92 | void AliTOFv5::TOFpc(Float_t xtof, Float_t ytof, Float_t zlen1, | |
93 | Float_t zlen2, Float_t zlen3, Float_t ztof0) | |
94 | { | |
95 | // | |
96 | // Definition of the Time Of Fligh Resistive Plate Chambers | |
97 | // xFLT, yFLT, zFLT - sizes of TOF modules (large) | |
98 | ||
99 | Float_t ycoor; | |
100 | Float_t par[10]; | |
101 | Int_t idrotm[100]; | |
102 | ||
103 | Float_t yFREON, xp, yp, zp; | |
104 | ||
105 | Int_t *idtmed = fIdtmed->GetArray()-499; | |
106 | ||
107 | ||
108 | par[0] = xtof / 2.; | |
109 | par[1] = ytof / 2.; | |
110 | par[2] = zlen1 / 2.; | |
111 | gMC->Gsvolu("FTO1", "BOX ", idtmed[506], par, 3); | |
112 | par[2] = zlen2 / 2.; | |
113 | gMC->Gsvolu("FTO2", "BOX ", idtmed[506], par, 3); | |
114 | par[2] = zlen3 / 2.; | |
115 | gMC->Gsvolu("FTO3", "BOX ", idtmed[506], par, 3); | |
116 | ||
117 | ||
118 | // Position of modules | |
119 | Float_t zcor1 = ztof0 - zlen1/2; | |
120 | Float_t zcor2 = ztof0 - zlen1 - zlen2/2.; | |
121 | Float_t zcor3 = 0.; | |
122 | ||
123 | AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.); | |
124 | AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.); | |
125 | gMC->Gspos("FTO1", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY"); | |
126 | gMC->Gspos("FTO1", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY"); | |
127 | gMC->Gspos("FTO1", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY"); | |
128 | gMC->Gspos("FTO1", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY"); | |
129 | gMC->Gspos("FTO1", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY"); | |
130 | gMC->Gspos("FTO1", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY"); | |
131 | ||
132 | gMC->Gspos("FTO2", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY"); | |
133 | gMC->Gspos("FTO2", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY"); | |
134 | gMC->Gspos("FTO2", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY"); | |
135 | gMC->Gspos("FTO2", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY"); | |
136 | ||
137 | gMC->Gspos("FTO3", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY"); | |
138 | ||
139 | // Subtraction the distance to TOF module boundaries | |
140 | ||
141 | Float_t db = 7.; | |
142 | Float_t xFLT, yFLT, zFLT1, zFLT2, zFLT3; | |
143 | ||
144 | ||
145 | xFLT = xtof -(.5 +.5)*2; | |
146 | yFLT = ytof; | |
147 | zFLT1 = zlen1 - db; | |
148 | zFLT2 = zlen2 - db; | |
149 | zFLT3 = zlen3 - db; | |
150 | ||
151 | ||
152 | // fron gaps in MRPC chamber | |
153 | yFREON = .11; //cm | |
154 | ||
155 | // Sizes of MRPC pads | |
156 | ||
157 | xp = 3.0; | |
158 | yp = 12.3*0.05; // 5% X0 of glass | |
159 | zp = 3.0; | |
160 | ||
161 | // Subtraction of dead boundaries in X=2 cm and Z=7/2 cm | |
162 | ||
163 | cout <<"************************* TOF geometry **************************"<<endl; | |
164 | ||
165 | Int_t nz1, nz2, nz3, nx; //- numbers of pixels | |
166 | nx = Int_t (xFLT/xp); | |
167 | ||
168 | printf("Number of pixel along x axis = %i",nx); | |
169 | ||
170 | par[0] = xFLT/2; | |
171 | par[1] = yFLT/2; | |
172 | par[2] = (zFLT1 / 2.); | |
173 | nz1 = Int_t (par[2]*2/zp); | |
174 | gMC->Gsvolu("FLT1", "BOX ", idtmed[506], par, 3); // CO2 | |
175 | gMC->Gspos("FLT1", 0, "FTO1", 0., 0., 0., 0, "ONLY"); | |
176 | printf("Number of pixel along z axis (module 1) = %i",nz1); | |
177 | ||
178 | par[2] = (zFLT2 / 2.); | |
179 | nz2 = Int_t (par[2]*2/zp); | |
180 | gMC->Gsvolu("FLT2", "BOX ", idtmed[506], par, 3); // CO2 | |
181 | gMC->Gspos("FLT2", 0, "FTO2", 0., 0., 0., 0, "ONLY"); | |
182 | printf("Number of pixel along z axis (module 2) = %i",nz2); | |
183 | ||
184 | par[2] = (zFLT3 / 2.); | |
185 | nz3 = Int_t (par[2]*2/zp); | |
186 | gMC->Gsvolu("FLT3", "BOX ", idtmed[506], par, 3); // CO2 | |
187 | gMC->Gspos("FLT3", 0, "FTO3", 0., 0., 0., 0, "ONLY"); | |
188 | printf("Number of pixel along z axis (module 3) = %i",nz3); | |
189 | ||
190 | ////////// Layers before detector //////////////////// | |
191 | ||
192 | // Alluminium layer in front 1.0 mm thick at the beginning | |
193 | par[0] = -1; | |
194 | par[1] = 0.1; | |
195 | par[2] = -1; | |
196 | ycoor = -yFLT/2 + par[1]; | |
197 | gMC->Gsvolu("FMY1", "BOX ", idtmed[508], par, 3); // Alluminium | |
198 | gMC->Gspos("FMY1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
199 | gMC->Gsvolu("FMY2", "BOX ", idtmed[508], par, 3); // Alluminium | |
200 | gMC->Gspos("FMY2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
201 | gMC->Gsvolu("FMY3", "BOX ", idtmed[508], par, 3); // Alluminium | |
202 | gMC->Gspos("FMY3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
203 | ||
204 | // Honeycomb layer (1cm of special polyethilene) | |
205 | ycoor = ycoor + par[1]; | |
206 | par[0] = -1; | |
207 | par[1] = 1. / 2; | |
208 | par[2] = -1; | |
209 | ycoor = ycoor + par[1]; | |
210 | gMC->Gsvolu("FPL1", "BOX ", idtmed[503], par, 3); // Hony | |
211 | gMC->Gspos("FPL1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
212 | gMC->Gsvolu("FPL2", "BOX ", idtmed[503], par, 3); // Hony | |
213 | gMC->Gspos("FPL2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
214 | gMC->Gsvolu("FPL3", "BOX ", idtmed[503], par, 3); // Hony | |
215 | gMC->Gspos("FPL3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
216 | ||
217 | ///////////////// Detector itself ////////////////////// | |
218 | ||
219 | const Float_t SpaceBefore=2.; | |
220 | ||
221 | par[0] = -1; | |
222 | par[1] = yp/2; // 5 %X0 thick of glass | |
223 | par[2] = -1; | |
224 | ycoor = -yFLT/2 + SpaceBefore; | |
225 | gMC->Gsvolu("FLD1", "BOX ", idtmed[514], par, 3); // Glass | |
226 | gMC->Gspos("FLD1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
227 | gMC->Gsvolu("FLD2", "BOX ", idtmed[514], par, 3); // Glass | |
228 | gMC->Gspos("FLD2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
229 | gMC->Gsvolu("FLD3", "BOX ", idtmed[514], par, 3); // Glass | |
230 | gMC->Gspos("FLD3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
231 | ||
232 | gMC->Gsdvn("FLZ1", "FLD1", nz1, 3); //pixel size xp=zp=3 | |
233 | gMC->Gsdvn("FLZ2", "FLD2", nz2, 3); | |
234 | gMC->Gsdvn("FLZ3", "FLD3", nz3, 3); | |
235 | gMC->Gsdvn("FLX1", "FLZ1", nx, 1); | |
236 | gMC->Gsdvn("FLX2", "FLZ2", nx, 1); | |
237 | gMC->Gsdvn("FLX3", "FLZ3", nx, 1); | |
238 | ||
239 | // MRPC pixel itself | |
240 | par[0] = -1;//xp/2; | |
241 | par[1] = -1;//yp/2; // 5 %X0 thick of glass | |
242 | par[2] = -1;//zp/2; | |
243 | gMC->Gsvolu("FPA0", "BOX ", idtmed[514], par, 3);// Glass | |
244 | gMC->Gspos("FPA0", 1, "FLX1", 0., 0., 0., 0, "ONLY"); | |
245 | gMC->Gspos("FPA0", 2, "FLX2", 0., 0., 0., 0, "ONLY"); | |
246 | gMC->Gspos("FPA0", 3, "FLX3", 0., 0., 0., 0, "ONLY"); | |
247 | ||
248 | // Freon gas sencitive vol.ume | |
249 | par[0] = -1; | |
250 | par[1] = yFREON/2; | |
251 | par[2] = -1; | |
252 | gMC->Gsvolu("FPAD", "BOX ", idtmed[513], par, 3);// Freon | |
253 | gMC->Gspos("FPAD", 0, "FPA0", 0., 0., 0., 0, "ONLY"); | |
254 | ||
255 | ////////// Layers after detector //////////////////// | |
256 | ||
257 | const Float_t SpaceAfter=6.; | |
258 | ||
259 | // Honeycomb layer after (3cm) | |
260 | par[0] = -1; | |
261 | par[1] = 0.6; | |
262 | par[2] = -1; | |
263 | ycoor = -yFLT/2 + SpaceAfter - par[1]; | |
264 | gMC->Gsvolu("FPE1", "BOX ", idtmed[503], par, 3); // Hony | |
265 | gMC->Gspos("FPE1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
266 | gMC->Gsvolu("FPE2", "BOX ", idtmed[503], par, 3); // Hony | |
267 | gMC->Gspos("FPE2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
268 | gMC->Gsvolu("FPE3", "BOX ", idtmed[503], par, 3); // Hony | |
269 | gMC->Gspos("FPE3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
270 | ||
271 | // Electronics (Cu) after | |
272 | par[0] = -1; | |
273 | par[1] = 1.43*0.05 / 2.; // 5% of X0 | |
274 | par[2] = -1; | |
275 | ycoor = -yFLT/2 + SpaceAfter +par[1]; | |
276 | gMC->Gsvolu("FEC1", "BOX ", idtmed[501], par, 3); // Cu | |
277 | gMC->Gspos("FEC1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
278 | gMC->Gsvolu("FEC2", "BOX ", idtmed[501], par, 3); // Cu | |
279 | gMC->Gspos("FEC2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
280 | gMC->Gsvolu("FEC3", "BOX ", idtmed[501], par, 3); // Cu | |
281 | gMC->Gspos("FEC3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
282 | ||
283 | // Cooling water after | |
284 | ycoor = ycoor+par[1]; | |
285 | par[0] = -1; | |
286 | par[1] = 36.1*0.02 / 2.; // 2% of X0 | |
287 | par[2] = -1; | |
288 | ycoor = ycoor+par[1]; | |
289 | gMC->Gsvolu("FWA1", "BOX ", idtmed[515], par, 3); // Water | |
290 | gMC->Gspos("FWA1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
291 | gMC->Gsvolu("FWA2", "BOX ", idtmed[515], par, 3); // Water | |
292 | gMC->Gspos("FWA2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
293 | gMC->Gsvolu("FWA3", "BOX ", idtmed[515], par, 3); // Water | |
294 | gMC->Gspos("FWA3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY"); | |
295 | ||
296 | //back plate honycomb (2cm) | |
297 | par[0] = -1; | |
298 | par[1] = 2 / 2.; | |
299 | par[2] = -1; | |
300 | ycoor = yFLT/2 - par[1]; | |
301 | gMC->Gsvolu("FEG1", "BOX ", idtmed[503], par, 3); // Hony | |
302 | gMC->Gspos("FEG1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY"); | |
303 | gMC->Gsvolu("FEG2", "BOX ", idtmed[503], par, 3); // Hony | |
304 | gMC->Gspos("FEG2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY"); | |
305 | gMC->Gsvolu("FEG3", "BOX ", idtmed[503], par, 3); // Hony | |
306 | gMC->Gspos("FEG3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");} | |
307 | ||
308 | //_____________________________________________________________________________ | |
309 | void AliTOFv5::DrawModule() | |
310 | { | |
311 | // | |
312 | // Draw a shaded view of the Time Of Flight version 1 | |
313 | // | |
314 | // Set everything unseen | |
315 | gMC->Gsatt("*", "seen", -1); | |
316 | // | |
317 | // Set ALIC mother transparent | |
318 | gMC->Gsatt("ALIC","SEEN",0); | |
319 | // | |
320 | // Set the volumes visible | |
321 | gMC->Gsatt("ALIC","SEEN",0); | |
322 | gMC->Gsatt("FBAR","SEEN",1); | |
323 | gMC->Gsatt("FTO1","SEEN",1); | |
324 | gMC->Gsatt("FTO2","SEEN",1); | |
325 | gMC->Gsatt("FTO3","SEEN",1); | |
326 | gMC->Gsatt("FBT1","SEEN",1); | |
327 | gMC->Gsatt("FBT2","SEEN",1); | |
328 | gMC->Gsatt("FBT3","SEEN",1); | |
329 | gMC->Gsatt("FDT1","SEEN",1); | |
330 | gMC->Gsatt("FDT2","SEEN",1); | |
331 | gMC->Gsatt("FDT3","SEEN",1); | |
332 | gMC->Gsatt("FLT1","SEEN",1); | |
333 | gMC->Gsatt("FLT2","SEEN",1); | |
334 | gMC->Gsatt("FLT3","SEEN",1); | |
335 | gMC->Gsatt("FPL1","SEEN",1); | |
336 | gMC->Gsatt("FPL2","SEEN",1); | |
337 | gMC->Gsatt("FPL3","SEEN",1); | |
338 | gMC->Gsatt("FLD1","SEEN",1); | |
339 | gMC->Gsatt("FLD2","SEEN",1); | |
340 | gMC->Gsatt("FLD3","SEEN",1); | |
341 | gMC->Gsatt("FLZ1","SEEN",1); | |
342 | gMC->Gsatt("FLZ2","SEEN",1); | |
343 | gMC->Gsatt("FLZ3","SEEN",1); | |
344 | gMC->Gsatt("FLX1","SEEN",1); | |
345 | gMC->Gsatt("FLX2","SEEN",1); | |
346 | gMC->Gsatt("FLX3","SEEN",1); | |
347 | gMC->Gsatt("FPA0","SEEN",1); | |
348 | // | |
349 | gMC->Gdopt("hide", "on"); | |
350 | gMC->Gdopt("shad", "on"); | |
351 | gMC->Gsatt("*", "fill", 7); | |
352 | gMC->SetClipBox("."); | |
353 | gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000); | |
354 | gMC->DefaultRange(); | |
355 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02); | |
356 | gMC->Gdhead(1111, "Time Of Flight"); | |
357 | gMC->Gdman(18, 4, "MAN"); | |
358 | gMC->Gdopt("hide","off"); | |
359 | } | |
360 | ||
361 | //_____________________________________________________________________________ | |
362 | void AliTOFv5::CreateMaterials() | |
363 | { | |
364 | // | |
365 | // Define materials for the Time Of Flight | |
366 | // | |
367 | AliTOF::CreateMaterials(); | |
368 | } | |
369 | ||
370 | //_____________________________________________________________________________ | |
371 | void AliTOFv5::Init() | |
372 | { | |
373 | // | |
374 | // Initialise the detector after the geometry has been defined | |
375 | // | |
376 | AliTOF::Init(); | |
377 | fIdFTO2=gMC->VolId("FTO2"); | |
378 | fIdFTO3=gMC->VolId("FTO3"); | |
379 | fIdFLT1=gMC->VolId("FLT1"); | |
380 | fIdFLT2=gMC->VolId("FLT2"); | |
381 | fIdFLT3=gMC->VolId("FLT3"); | |
382 | } | |
383 | ||
384 | //_____________________________________________________________________________ | |
385 | void AliTOFv5::StepManager() | |
386 | { | |
387 | // | |
388 | // Procedure called at each step in the Time Of Flight | |
389 | // | |
390 | TLorentzVector mom, pos; | |
391 | Float_t hits[8]; | |
392 | Int_t vol[3]; | |
393 | Int_t copy, id, i; | |
394 | Int_t *idtmed = fIdtmed->GetArray()-499; | |
395 | if(gMC->GetMedium()==idtmed[514-1] && | |
396 | gMC->IsTrackEntering() && gMC->TrackCharge() | |
397 | && gMC->CurrentVolID(copy)==fIdSens) { | |
398 | TClonesArray &lhits = *fHits; | |
399 | // | |
400 | // Record only charged tracks at entrance | |
401 | gMC->CurrentVolOffID(1,copy); | |
402 | vol[2]=copy; | |
403 | gMC->CurrentVolOffID(3,copy); | |
404 | vol[1]=copy; | |
405 | id=gMC->CurrentVolOffID(8,copy); | |
406 | vol[0]=copy; | |
407 | if(id==fIdFTO3) { | |
408 | vol[0]+=22; | |
409 | id=gMC->CurrentVolOffID(5,copy); | |
410 | if(id==fIdFLT3) vol[1]+=6; | |
411 | } else if (id==fIdFTO2) { | |
412 | vol[0]+=20; | |
413 | id=gMC->CurrentVolOffID(5,copy); | |
414 | if(id==fIdFLT2) vol[1]+=8; | |
415 | } else { | |
416 | id=gMC->CurrentVolOffID(5,copy); | |
417 | if(id==fIdFLT1) vol[1]+=14; | |
418 | } | |
419 | gMC->TrackPosition(pos); | |
420 | gMC->TrackMomentum(mom); | |
421 | // | |
422 | Double_t ptot=mom.Rho(); | |
423 | Double_t norm=1/ptot; | |
424 | for(i=0;i<3;++i) { | |
425 | hits[i]=pos[i]; | |
426 | hits[i+3]=mom[i]*norm; | |
427 | } | |
428 | hits[6]=ptot; | |
429 | hits[7]=pos[3]; | |
430 | new(lhits[fNhits++]) AliTOFhit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
431 | } | |
432 | } | |
433 |