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fe4da5cc | 1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // // | |
3 | // Time Projection Chamber version 1 -- detailed TPC and fast simulation // | |
4 | // // | |
5 | //Begin_Html | |
6 | /* | |
1439f98e | 7 | <img src="picts/AliTPCv1Class.gif"> |
fe4da5cc | 8 | */ |
9 | //End_Html | |
10 | // // | |
11 | // // | |
12 | /////////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #include <TMath.h> | |
15 | #include <TGeometry.h> | |
16 | #include <TNode.h> | |
17 | #include <TBRIK.h> | |
18 | #include <TTUBE.h> | |
19 | #include "AliTPCv1.h" | |
20 | #include "AliRun.h" | |
21 | #include <iostream.h> | |
22 | #include <fstream.h> | |
23 | ||
24 | #include "AliMC.h" | |
25 | #include "AliConst.h" | |
26 | ||
8c555625 | 27 | #include "AliTPCParam.h" |
28 | #include "AliTPCD.h" | |
29 | ||
fe4da5cc | 30 | ClassImp(AliTPCv1) |
31 | ||
32 | //_____________________________________________________________________________ | |
33 | AliTPCv1::AliTPCv1(const char *name, const char *title) | |
34 | :AliTPC(name, title) { | |
35 | // | |
36 | // Standard constructor for Time Projection Chamber | |
37 | // | |
38 | fIdSens1=fIdSens2=0; | |
39 | } | |
40 | ||
41 | //_____________________________________________________________________________ | |
42 | void AliTPCv1::CreateGeometry() | |
43 | { | |
44 | // | |
45 | // Creates geometry for Time Projection Chamber version 1 | |
46 | // Detailed geometry -- Fast simulation | |
47 | // Origin M.Kowalski | |
48 | // | |
49 | //Begin_Html | |
50 | /* | |
1439f98e | 51 | <img src="picts/AliTPCv1.gif"> |
fe4da5cc | 52 | */ |
53 | //End_Html | |
54 | //Begin_Html | |
55 | /* | |
1439f98e | 56 | <img src="picts/AliTPCv1Tree.gif"> |
fe4da5cc | 57 | */ |
58 | //End_Html | |
59 | ||
ad51aeb0 | 60 | Int_t *idtmed = fIdtmed->GetArray()-399; |
8c555625 | 61 | |
62 | ||
63 | AliTPCParam * fTPCParam = &(fDigParam->GetParam()); | |
fe4da5cc | 64 | |
8c555625 | 65 | Float_t tana, rlsl, wlsl, rssl, rlsu, wssl, wlsu, |
fe4da5cc | 66 | rssu, wssu, alpha, x, y, z, sec_thick; |
67 | ||
68 | Float_t r1, r2, x1, z0, z1, x2, theta1, theta2, theta3, dm[21]; | |
69 | Int_t il, iu; | |
70 | Float_t z_side, zz; | |
71 | Int_t idrotm[100]; | |
72 | ||
73 | Float_t x0l, x0u; | |
74 | Int_t idr; | |
75 | Float_t thl; | |
76 | Int_t ils; | |
77 | Float_t opl; | |
78 | Int_t iss; | |
8c555625 | 79 | Float_t thu, opu, phi1, phi2, phi3; |
fe4da5cc | 80 | |
81 | // ---------------------------------------------------- | |
82 | // FIELD CAGE WITH ENDCAPS - CARBON FIBER | |
83 | // THIS IS ALSO A TPC MOTHER VOLUME | |
84 | // ---------------------------------------------------- | |
85 | dm[0] = 76.; | |
86 | dm[1] = 278.; | |
87 | dm[2] = 275.; | |
88 | ||
cfce8870 | 89 | gMC->Gsvolu("TPC ", "TUBE", idtmed[407], dm, 3); |
fe4da5cc | 90 | |
91 | // ------------------------------------------------------- | |
92 | // drift gas Ne/CO2 (90/10 volume) - nonsensitive | |
93 | // field cage thickness = 0.52% X0 | |
94 | // ---------------------------------------------------- | |
95 | ||
96 | //Begin_Html | |
97 | /* | |
1439f98e | 98 | <img src="picts/spec_tgas1.gif"> |
fe4da5cc | 99 | */ |
100 | //End_Html | |
101 | ||
102 | dm[0] = 76.+0.09776; | |
103 | dm[1] = 257.; | |
104 | dm[2] = 250.; | |
105 | ||
cfce8870 | 106 | gMC->Gsvolu("TGAS", "TUBE", idtmed[402], dm, 3); |
fe4da5cc | 107 | |
108 | // ------------------------------------------------------ | |
109 | // "side" gas volume (the same as drift gas), | |
110 | // here the readout chambers are positioned | |
111 | // ------------------------------------------------------ | |
112 | ||
113 | //Begin_Html | |
114 | /* | |
1439f98e | 115 | <img src="picts/spec_tpsg1.gif"> |
fe4da5cc | 116 | */ |
117 | //End_Html | |
118 | ||
119 | dm[2] = 12.5; | |
120 | z_side = dm[2]; | |
121 | ||
cfce8870 | 122 | gMC->Gsvolu("TPSG", "TUBE", idtmed[401], dm, 3); |
fe4da5cc | 123 | // ------------------------------------------------------ |
124 | // HV midplane - 20 microns of mylar | |
125 | // ----------------------------------------------------- | |
126 | dm[2] = .001; | |
127 | ||
cfce8870 | 128 | gMC->Gsvolu("TPHV", "TUBE", idtmed[405], dm, 3); |
fe4da5cc | 129 | |
130 | // ==================================================== | |
131 | // lower and upper readout chambers | |
132 | // ==================================================== | |
133 | // sectors opening angles in degrees | |
134 | // --------------------------------------------------- | |
135 | opl = 30.; | |
136 | opu = 15.; | |
137 | thl = TMath::Tan(opl * .5 * kDegrad); | |
138 | thu = TMath::Tan(opu * .5 * kDegrad); | |
139 | // --------------------------------------------------- | |
140 | // S and L-sectors radii | |
141 | // --------------------------------------------------- | |
142 | rssl = 88.; | |
143 | rssu = 136.; | |
144 | rlsl = 142.; | |
145 | rlsu = 250.; | |
146 | // -------------------------------------------------- | |
147 | // Sectors widths | |
148 | // -------------------------------------------------- | |
149 | wssl = 46.5; | |
150 | wssu = 72.2; | |
151 | wlsl = 37.; | |
152 | wlsu = 65.4; | |
153 | // --------------------------------------------------- | |
154 | // Sector thickness 25% of X0 (Al) | |
155 | // --------------------------------------------------- | |
156 | sec_thick = 2.225; | |
157 | // --------------------------------------------------- | |
158 | // S-sectors (lower sectors) | |
159 | // --------------------------------------------------- | |
160 | dm[0] = wssl * .5; | |
161 | dm[1] = wssu * .5; | |
162 | dm[2] = sec_thick * .5; | |
163 | dm[3] = (rssu - rssl) * .5; | |
164 | ||
165 | x0l = rssl + dm[3]; | |
166 | ||
167 | //Begin_Html | |
168 | /* | |
1439f98e | 169 | <img src="picts/spec_trcs1.gif"> |
fe4da5cc | 170 | */ |
171 | //End_Html | |
172 | ||
173 | ||
cfce8870 | 174 | gMC->Gsvolu("TRCS", "TRD1", idtmed[399], dm, 4); |
fe4da5cc | 175 | // ----------------------------------------------------- |
176 | // S-sectors --> "gas sectors" | |
177 | // ----------------------------------------------------- | |
178 | ||
179 | //Begin_Html | |
180 | /* | |
1439f98e | 181 | <img src="picts/spec_tsga1.gif"> |
fe4da5cc | 182 | */ |
183 | //End_Html | |
184 | ||
185 | dm[2] = (250.-0.001)/2.; | |
cfce8870 | 186 | gMC->Gsvolu("TSGA", "TRD1", idtmed[402], dm, 4); |
fe4da5cc | 187 | // --------------------------------------------------- |
188 | // L-sectors (upper sectors) | |
189 | // --------------------------------------------------- | |
190 | dm[0] = wlsl * .5; | |
191 | dm[1] = wlsu * .5; | |
192 | dm[2] = sec_thick * .5; | |
193 | dm[3] = (rlsu - rlsl) * .5; | |
194 | ||
195 | x0u = rlsl + dm[3]; | |
196 | ||
cfce8870 | 197 | gMC->Gsvolu("TRCL", "TRD1", idtmed[399], dm, 4); |
fe4da5cc | 198 | // ----------------------------------------------------- |
199 | // L-sectors - "gas sectors" | |
200 | // ----------------------------------------------------- | |
201 | dm[2] = (250.-0.001)/2.; | |
cfce8870 | 202 | gMC->Gsvolu("TLGA", "TRD1", idtmed[402], dm, 4); |
fe4da5cc | 203 | // ----------------------------------------------------- |
204 | // thin sensitive strips (100 microns) placed at a center | |
8c555625 | 205 | // of each pad row in the "drift gas sector" |
fe4da5cc | 206 | // ----------------------------------------------------- |
cfce8870 | 207 | gMC->Gsvolu("TSST", "TRD1", idtmed[403], dm, 0); |
fe4da5cc | 208 | |
209 | dm[3] = .005; | |
8c555625 | 210 | z0 = rssl + (rssu - rssl) * .5; |
211 | ||
212 | for (iss = 0; iss < fTPCParam->GetNRowLow(); ++iss) { | |
213 | r1 = fTPCParam->GetPadRowRadiiLow(iss); | |
fe4da5cc | 214 | r2 = r1 + dm[3] * 2.; |
8c555625 | 215 | dm[0] = r1 * thl - 2.63; |
216 | dm[1] = r2 * thl - 2.63; | |
217 | ||
218 | zz = -z0 + r1+dm[3]; | |
219 | ||
cfce8870 | 220 | gMC->Gsposp("TSST", iss+1, "TSGA", 0, 0, zz, 0, "ONLY", dm, 4); |
fe4da5cc | 221 | } |
222 | // ----------------------------------------------------- | |
223 | // thin sensitive strips (100 microns) placed at a center | |
8c555625 | 224 | // of each pad row in the "drift gas sector" |
fe4da5cc | 225 | // ----------------------------------------------------- |
cfce8870 | 226 | gMC->Gsvolu("TLST", "TRD1", idtmed[403], dm, 0); |
8c555625 | 227 | |
228 | z0 = rlsl+ (rlsu - rlsl) * .5; | |
fe4da5cc | 229 | |
8c555625 | 230 | for (ils = 0; ils < fTPCParam->GetNRowUp(); ++ils) { |
231 | r1 = fTPCParam->GetPadRowRadiiUp(ils); | |
fe4da5cc | 232 | r2 = r1 + dm[3] * 2.; |
8c555625 | 233 | dm[0] = r1 * thu - 2.63; |
234 | dm[1] = r2 * thu - 2.63; | |
235 | ||
236 | zz = -z0 + r1 +dm[3]; | |
237 | ||
cfce8870 | 238 | gMC->Gsposp("TLST", ils+1, "TLGA", 0, 0, zz, 0, "ONLY", dm, 4); |
fe4da5cc | 239 | } |
240 | // ------------------------------------------------ | |
241 | // positioning of lower sectors (1-12)*2 | |
242 | // rotation matrices 1-12 | |
243 | // ------------------------------------------------ | |
244 | z = (250.+0.001)/2.; | |
245 | z1 = -z_side + sec_thick * .5; | |
246 | ||
247 | for (il = 0; il < 12; ++il) { | |
248 | phi1 = il * opl + 270; | |
249 | if (phi1 > 360.) { | |
250 | phi1 += -360; | |
251 | } | |
252 | theta1 = 90.; | |
253 | phi2 = 90.; | |
254 | theta2 = 180.; | |
255 | phi3 = il * opl; | |
256 | theta3 = 90.; | |
257 | ||
258 | idr = il+1; | |
259 | AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3); | |
260 | ||
261 | alpha = il * opl * kDegrad; | |
262 | x = x0l * TMath::Cos(alpha); | |
263 | y = x0l * TMath::Sin(alpha); | |
264 | ||
cfce8870 | 265 | gMC->Gspos("TSGA", il+1, "TGAS", x, y, z, idrotm[idr], "ONLY"); |
266 | gMC->Gspos("TSGA", il+13,"TGAS", x, y, -z, idrotm[idr], "ONLY"); | |
267 | gMC->Gspos("TRCS", il+1, "TPSG", x, y, z1, idrotm[idr], "ONLY"); | |
fe4da5cc | 268 | |
269 | } | |
270 | // ---------------------------------------------------- | |
271 | // positioning of upper sectors (1-24)*2 | |
272 | // rotation matrices 13-36 | |
273 | // ---------------------------------------------------- | |
274 | for (iu = 1; iu <= 24; ++iu) { | |
275 | phi1 = (iu - 1) * opu + 270.; | |
276 | if (phi1 > 360.) { | |
277 | phi1 += -360.; | |
278 | } | |
279 | theta1 = 90.; | |
280 | phi2 = 90.; | |
281 | theta2 = 180.; | |
282 | phi3 = (iu - 1) * opu; | |
283 | theta3 = 90.; | |
284 | ||
285 | idr = iu + 12; | |
286 | AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3); | |
287 | ||
288 | alpha = (iu - 1) * opu * kDegrad; | |
289 | x = x0u * TMath::Cos(alpha); | |
290 | y = x0u * TMath::Sin(alpha); | |
291 | ||
cfce8870 | 292 | gMC->Gspos("TLGA", iu, "TGAS", x, y, z, idrotm[idr], "ONLY"); |
293 | gMC->Gspos("TLGA", iu+24, "TGAS", x, y, -z, idrotm[idr], "ONLY"); | |
fe4da5cc | 294 | |
cfce8870 | 295 | gMC->Gspos("TRCL", iu, "TPSG", x, y, z1, idrotm[idr], "ONLY"); |
fe4da5cc | 296 | } |
297 | // -------------------------------------------------------- | |
298 | // Spoke wheel structures | |
299 | // -------------------------------------------------------- | |
cfce8870 | 300 | gMC->Gsvolu("TSWS", "TUBE", idtmed[399], dm, 0); |
fe4da5cc | 301 | |
302 | z0 = -z_side + 2.; | |
303 | ||
304 | dm[0] = 82.; | |
305 | dm[1] = 86.; | |
306 | dm[2] = 1.; | |
307 | ||
cfce8870 | 308 | gMC->Gsposp("TSWS", 1, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3); |
fe4da5cc | 309 | |
310 | dm[0] = 253.; | |
311 | dm[1] = 257.; | |
312 | ||
cfce8870 | 313 | gMC->Gsposp("TSWS", 2, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3); |
fe4da5cc | 314 | |
315 | dm[0] = 140.9; | |
316 | dm[1] = 141.9; | |
317 | ||
cfce8870 | 318 | gMC->Gsposp("TSWS", 3, "TPSG", 0, 0, z0, 0, "ONLY", dm, 3); |
fe4da5cc | 319 | |
320 | // ------------------------------------------------------- | |
321 | // this volumes are to avoid overlaping | |
322 | // ------------------------------------------------------- | |
323 | z0 = 253.; | |
324 | ||
325 | dm[0] = 76.; | |
326 | dm[1] = 76.+0.09776; | |
327 | ||
cfce8870 | 328 | gMC->Gsposp("TSWS", 4, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3); |
329 | gMC->Gsposp("TSWS", 5, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3); | |
fe4da5cc | 330 | |
331 | z0 += 21.; | |
332 | ||
cfce8870 | 333 | gMC->Gsposp("TSWS", 6, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3); |
334 | gMC->Gsposp("TSWS", 7, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3); | |
fe4da5cc | 335 | |
336 | dm[0] = 257.; | |
337 | dm[1] = 257.+0.09776; | |
338 | dm[2] = 11.5; | |
339 | ||
340 | z0 = 263.5; | |
341 | ||
cfce8870 | 342 | gMC->Gsposp("TSWS", 8, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3); |
343 | gMC->Gsposp("TSWS", 9, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3); | |
fe4da5cc | 344 | // ========================================================== |
345 | // wheels | |
346 | // ========================================================== | |
347 | // ---------------------------------------------------------- | |
348 | // Large wheel -> positioned in the TPC | |
349 | // ---------------------------------------------------------- | |
350 | dm[0] = 257.+0.09776; | |
351 | dm[1] = 278.; | |
352 | dm[2] = 11.5; | |
cfce8870 | 353 | gMC->Gsvolu("TPW1", "TUBE", idtmed[399], dm, 3); |
fe4da5cc | 354 | |
355 | dm[0] = 259.; | |
356 | dm[1] = 278.; | |
357 | dm[2] = 9.5; | |
358 | ||
cfce8870 | 359 | gMC->Gsvolu("TPW2", "TUBE", idtmed[498], dm, 3); |
fe4da5cc | 360 | |
cfce8870 | 361 | gMC->Gspos("TPW2", 1, "TPW1", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 362 | |
cfce8870 | 363 | gMC->Gspos("TPW1", 1, "TPC ", 0, 0, z0, 0, "ONLY"); |
364 | gMC->Gspos("TPW1", 2, "TPC ", 0, 0, -z0, 0, "ONLY"); | |
fe4da5cc | 365 | // ----------------------------------------------------------- |
366 | // Small wheel -> positioned in the TPSG | |
367 | // ----------------------------------------------------------- | |
368 | dm[0] = 76.+0.09776; | |
369 | dm[1] = 82.; | |
370 | dm[2] = 11.5; | |
371 | ||
cfce8870 | 372 | gMC->Gsvolu("TPW3", "TUBE", idtmed[399], dm, 3); |
fe4da5cc | 373 | |
374 | dm[0] = 76.+0.09776; | |
375 | dm[1] = 80.; | |
376 | dm[2] = 9.5; | |
377 | ||
cfce8870 | 378 | gMC->Gsvolu("TPW4", "TUBE", idtmed[401], dm, 3); |
fe4da5cc | 379 | |
cfce8870 | 380 | gMC->Gspos("TPW4", 1, "TPW3", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 381 | |
382 | z0 = 1.; | |
383 | ||
cfce8870 | 384 | gMC->Gspos("TPW3", 1, "TPSG", 0, 0, z0, 0, "ONLY"); |
fe4da5cc | 385 | // --------------------------------------------------------- |
386 | // spokes, inner and outer, also the inner ring | |
387 | // --------------------------------------------------------- | |
388 | ||
389 | //Begin_Html | |
390 | /* | |
1439f98e | 391 | <img src="picts/spec_tspo1.gif"> |
fe4da5cc | 392 | */ |
393 | //End_Html | |
394 | ||
395 | dm[0] = 0.5*(135.9-82.1); | |
396 | dm[1] = 3.; | |
397 | dm[2] = 2.; | |
398 | ||
399 | x1 = dm[0] + 82.; | |
400 | ||
cfce8870 | 401 | gMC->Gsvolu("TSPI", "BOX ", idtmed[399], dm, 3); |
fe4da5cc | 402 | |
403 | dm[1] = 2.; | |
404 | dm[2] = 1.; | |
405 | ||
cfce8870 | 406 | gMC->Gsvolu("TSP1", "BOX ", idtmed[498], dm, 3); |
fe4da5cc | 407 | |
cfce8870 | 408 | gMC->Gspos("TSP1", 1, "TSPI", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 409 | |
410 | dm[0] = 0.5*(256.9-142.1); | |
411 | dm[1] = 3.; | |
412 | dm[2] = 2.; | |
413 | ||
414 | x2 = dm[0] + 142.; | |
415 | ||
cfce8870 | 416 | gMC->Gsvolu("TSPO", "BOX ", idtmed[399], dm, 3); |
fe4da5cc | 417 | |
418 | dm[1] = 2.; | |
419 | dm[2] = 1.; | |
420 | ||
cfce8870 | 421 | gMC->Gsvolu("TSP2", "BOX ", idtmed[498], dm, 3); |
fe4da5cc | 422 | |
cfce8870 | 423 | gMC->Gspos("TSP2", 1, "TSPO", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 424 | // -------------------------------------------------------- |
425 | dm[0] = 136.; | |
426 | dm[1] = 142.; | |
427 | dm[2] = 2.; | |
428 | ||
cfce8870 | 429 | gMC->Gsvolu("TSWH", "TUBE", idtmed[399], dm, 3); |
fe4da5cc | 430 | |
431 | dm[0] = 137.; | |
432 | dm[1] = 141.; | |
433 | dm[2] = 1.; | |
434 | ||
cfce8870 | 435 | gMC->Gsvolu("TSW1", "TUBE", idtmed[498], dm, 3); |
fe4da5cc | 436 | |
cfce8870 | 437 | gMC->Gspos("TSW1", 1, "TSWH", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 438 | |
439 | z0 = z_side - .16168 - 2.; | |
440 | // -------------------------------------------------------- | |
cfce8870 | 441 | gMC->Gspos("TSWH", 1, "TPSG", 0, 0, z0, 0, "ONLY"); |
fe4da5cc | 442 | // ------------------------------------------------------- |
443 | // posiioning of the inner spokes | |
444 | // ------------------------------------------------------- | |
445 | for (il = 1; il <= 6; ++il) { | |
446 | phi1 = opl * .5 + (il - 1) * 2. * opl; | |
447 | theta1 = 90.; | |
448 | phi2 = opl * .5 + 90. + (il - 1) * 2. * opl; | |
449 | if (phi2 > 360.) { | |
450 | phi2 += -360.; | |
451 | } | |
452 | theta2 = 90.; | |
453 | phi3 = 0.; | |
454 | theta3 = 0.; | |
455 | ||
456 | alpha = phi1 * kDegrad; | |
457 | x = x1 * TMath::Cos(alpha); | |
458 | y = x1 * TMath::Sin(alpha); | |
459 | ||
460 | idr = il + 36; | |
461 | ||
462 | AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3); | |
cfce8870 | 463 | gMC->Gspos("TSPI", il, "TPSG", x, y, z0, idrotm[idr], "ONLY"); |
fe4da5cc | 464 | } |
465 | ||
466 | for (iu = 1; iu <= 12; ++iu) { | |
467 | phi1 = opu * .5 + (iu - 1) * 2. * opu; | |
468 | theta1 = 90.; | |
469 | phi2 = opu * .5 + 90. + (iu - 1) * 2. * opu; | |
470 | if (phi2 > 360.) { | |
471 | phi2 += -360.; | |
472 | } | |
473 | theta2 = 90.; | |
474 | phi3 = 0.; | |
475 | theta3 = 0.; | |
476 | ||
477 | alpha = phi1 * kDegrad; | |
478 | x = x2 * TMath::Cos(alpha); | |
479 | y = x2 * TMath::Sin(alpha); | |
480 | ||
481 | idr = iu + 42; | |
482 | ||
483 | AliMatrix(idrotm[idr], theta1, phi1, theta2, phi2, theta3, phi3); | |
cfce8870 | 484 | gMC->Gspos("TSPO", iu, "TPSG", x, y, z0, idrotm[idr], "ONLY"); |
fe4da5cc | 485 | } |
486 | // -------------------------------------------------------- | |
487 | // endcap cover (C, 0.86% X0) | |
488 | // -------------------------------------------------------- | |
489 | dm[0] = 76.+0.09776; | |
490 | dm[1] = 257.; | |
491 | dm[2] = 0.16168*0.5; | |
492 | ||
cfce8870 | 493 | gMC->Gsvolu("TCOV", "TUBE", idtmed[407], dm, 3); |
fe4da5cc | 494 | |
495 | z0 = z_side - dm[2]; | |
496 | ||
cfce8870 | 497 | gMC->Gspos("TCOV", 1, "TPSG", 0, 0, z0, 0, "ONLY"); |
fe4da5cc | 498 | // -------------------------------------------------------- |
499 | // put the readout chambers into the TPC | |
500 | // -------------------------------------------------------- | |
501 | theta1 = 90.; | |
502 | phi1 = 0.; | |
503 | theta2 = 90.; | |
504 | phi2 = 270.; | |
505 | theta3 = 180.; | |
506 | phi3 = 0.; | |
507 | ||
508 | AliMatrix(idrotm[55], theta1, phi1, theta2, phi2, theta3, phi3); | |
509 | ||
510 | z0 = z_side + 250.; | |
511 | ||
cfce8870 | 512 | gMC->Gspos("TPSG", 1, "TPC ", 0, 0, z0, 0, "ONLY"); |
513 | gMC->Gspos("TPSG", 2, "TPC ", 0, 0, -z0, idrotm[55], "ONLY"); | |
fe4da5cc | 514 | // --------------------------------------------------------- |
515 | // outer gas insulation (CO2) | |
516 | // --------------------------------------------------------- | |
517 | dm[0] = 257.+0.09776; | |
518 | dm[1] = 278.-0.25004; | |
519 | dm[2] = 275.-23.; | |
520 | ||
cfce8870 | 521 | gMC->Gsvolu("TPOI", "TUBE", idtmed[406], dm, 3); |
fe4da5cc | 522 | |
cfce8870 | 523 | gMC->Gspos("TPHV", 1, "TGAS", 0, 0, 0, 0, "ONLY"); |
524 | gMC->Gspos("TGAS", 1, "TPC ", 0, 0, 0, 0, "ONLY"); | |
525 | gMC->Gspos("TPOI", 1, "TPC ", 0, 0, 0, 0, "ONLY"); | |
fe4da5cc | 526 | |
cfce8870 | 527 | gMC->Gspos("TPC ", 1, "ALIC", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 528 | // ====================================================== |
529 | // all volumes below are positioned in ALIC | |
530 | // ====================================================== | |
531 | // ------------------------------------------------------ | |
532 | // the last parts of the smaller wheel (TSWS) | |
533 | // ------------------------------------------------------ | |
534 | dm[0] = 74.; | |
535 | dm[1] = 76.; | |
536 | dm[2] = 1.; | |
537 | ||
538 | z0 = 253.; | |
539 | ||
cfce8870 | 540 | gMC->Gsposp("TSWS", 10, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3); |
541 | gMC->Gsposp("TSWS", 11, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3); | |
fe4da5cc | 542 | |
543 | dm[0] = 70.; | |
544 | ||
545 | z0 += 21.; | |
546 | ||
cfce8870 | 547 | gMC->Gsposp("TSWS", 12, "TPC ", 0, 0, z0, 0, "ONLY", dm, 3); |
548 | gMC->Gsposp("TSWS", 13, "TPC ", 0, 0, -z0, 0, "ONLY", dm, 3); | |
fe4da5cc | 549 | // ---------------------------------------------------- |
550 | // Inner vessel (PCON) | |
551 | // This volume is to be positioned directly in ALIC | |
552 | // ---------------------------------------------------- | |
553 | ||
554 | //Begin_Html | |
555 | /* | |
1439f98e | 556 | <img src="picts/spec_tpiv1.gif"> |
fe4da5cc | 557 | */ |
558 | //End_Html | |
559 | ||
560 | dm[0] = 0.; | |
561 | dm[1] = 360.; | |
562 | dm[2] = 4.; | |
563 | ||
564 | dm[3] = -250.; | |
565 | dm[4] = 75.; | |
566 | dm[5] = 76.; | |
567 | ||
568 | dm[6] = -64.5; | |
569 | dm[7] = 50.; | |
570 | dm[8] = 76.; | |
571 | ||
572 | dm[9] = 64.5; | |
573 | dm[10] = 50.; | |
574 | dm[11] = 76.; | |
575 | ||
576 | dm[12] = 250.; | |
577 | dm[13] = 75.; | |
578 | dm[14] = 76.; | |
579 | ||
cfce8870 | 580 | gMC->Gsvolu("TPIV", "PCON", idtmed[407], dm, 15); |
fe4da5cc | 581 | // -------------------------------------------------------- |
582 | // fill the inner vessel with CO2, (HV kDegrader) | |
583 | // cone parts have different thickness | |
584 | // than the central barrel, according to the TP | |
585 | // -------------------------------------------------------- | |
586 | tana = 75./185.5; | |
587 | ||
588 | dm[0] = 0.; | |
589 | dm[1] = 360.; | |
590 | dm[2] = 6.; | |
591 | ||
592 | dm[3] = -(250.-0.2162); | |
593 | dm[4] = (185.5-0.2126)*tana+0.2126; | |
594 | dm[5] = 76-0.001; | |
595 | ||
596 | dm[6] = -64.5; | |
597 | dm[7] = 50.+0.2162; | |
598 | dm[8] = 76-0.001; | |
599 | ||
600 | dm[9] = -64.5; | |
601 | dm[10] = 50+0.05076; | |
602 | dm[11] = 76-0.001; | |
603 | ||
604 | dm[12] = 64.5; | |
605 | dm[13] = 50+0.05076; | |
606 | dm[14] = 76-0.001; | |
607 | ||
608 | dm[15] = 64.5; | |
609 | dm[16] = 50.+0.2162; | |
610 | dm[17] = 76-0.001; | |
611 | ||
612 | dm[18] = (250.-0.2162); | |
613 | dm[19] = (185.5-0.2126)*tana+0.2126; | |
614 | dm[20] = 76-0.001; | |
615 | ||
cfce8870 | 616 | gMC->Gsvolu("TPVD", "PCON", idtmed[406], dm, 21); |
fe4da5cc | 617 | |
cfce8870 | 618 | gMC->Gspos("TPVD", 1, "TPIV", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 619 | |
cfce8870 | 620 | gMC->Gspos("TPIV", 1, "ALIC", 0, 0, 0, 0, "ONLY"); |
fe4da5cc | 621 | // --------------------------------------------------- |
622 | // volumes ordering | |
623 | // --------------------------------------------------- | |
cfce8870 | 624 | gMC->Gsord("TGAS", 6); |
625 | gMC->Gsord("TPSG", 6); | |
626 | gMC->Gsord("TSGA", 3); | |
627 | gMC->Gsord("TLGA", 3); | |
fe4da5cc | 628 | } |
629 | ||
630 | //_____________________________________________________________________________ | |
8c555625 | 631 | void AliTPCv1::DrawDetector() |
fe4da5cc | 632 | { |
633 | // | |
634 | // Draw a shaded view of the Time Projection Chamber version 1 | |
635 | // | |
636 | ||
fe4da5cc | 637 | // Set everything unseen |
cfce8870 | 638 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 639 | // |
640 | // Set ALIC mother transparent | |
cfce8870 | 641 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 642 | // |
643 | // Set the volumes visible | |
cfce8870 | 644 | gMC->Gsatt("TPC","SEEN",0); |
645 | gMC->Gsatt("TGAS","SEEN",0); | |
646 | gMC->Gsatt("TPSG","SEEN",0); | |
647 | gMC->Gsatt("TPHV","SEEN",1); | |
648 | gMC->Gsatt("TRCS","SEEN",1); | |
649 | gMC->Gsatt("TRCL","SEEN",1); | |
650 | gMC->Gsatt("TSST","SEEN",1); | |
651 | gMC->Gsatt("TLST","SEEN",1); | |
652 | gMC->Gsatt("TSWS","SEEN",1); | |
653 | gMC->Gsatt("TPW1","SEEN",1); | |
654 | gMC->Gsatt("TPW2","SEEN",1); | |
655 | gMC->Gsatt("TPW3","SEEN",1); | |
656 | gMC->Gsatt("TPW4","SEEN",1); | |
657 | gMC->Gsatt("TSPI","SEEN",1); | |
658 | gMC->Gsatt("TSP1","SEEN",0); | |
659 | gMC->Gsatt("TSPO","SEEN",1); | |
660 | gMC->Gsatt("TSP2","SEEN",0); | |
661 | gMC->Gsatt("TSWH","SEEN",1); | |
662 | gMC->Gsatt("TSW1","SEEN",1); | |
663 | gMC->Gsatt("TCOV","SEEN",0); | |
664 | gMC->Gsatt("TPOI","SEEN",1); | |
665 | gMC->Gsatt("TPIV","SEEN",1); | |
666 | gMC->Gsatt("TPVD","SEEN",1); | |
fe4da5cc | 667 | // |
cfce8870 | 668 | gMC->Gdopt("hide", "on"); |
669 | gMC->Gdopt("shad", "on"); | |
670 | gMC->Gsatt("*", "fill", 7); | |
671 | gMC->SetClipBox("."); | |
672 | gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000); | |
673 | gMC->DefaultRange(); | |
674 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
675 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
676 | gMC->Gdman(18, 4, "MAN"); | |
677 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 678 | } |
679 | ||
680 | //_____________________________________________________________________________ | |
681 | void AliTPCv1::CreateMaterials() | |
682 | { | |
683 | // | |
684 | // Define materials for Time Projection Chamber | |
685 | // | |
686 | AliTPC::CreateMaterials(); | |
687 | } | |
688 | ||
689 | //_____________________________________________________________________________ | |
690 | void AliTPCv1::Init() | |
691 | { | |
692 | // | |
693 | // Initialises TPC detector after it has been created | |
694 | // | |
cfce8870 | 695 | |
696 | fIdSens1=gMC->VolId("TLST"); | |
697 | fIdSens2=gMC->VolId("TSST"); | |
fe4da5cc | 698 | |
699 | printf("TPC version 1 initialized\n"); | |
700 | } | |
701 | ||
702 | //_____________________________________________________________________________ | |
703 | void AliTPCv1::StepManager() | |
704 | { | |
705 | // | |
706 | // Called at every step in the Time Projection Chamber | |
707 | // | |
0a6d8768 | 708 | Int_t copy, id, i; |
fe4da5cc | 709 | Float_t hits[4]; |
710 | Int_t vol[2]; | |
0a6d8768 | 711 | TLorentzVector p; |
fe4da5cc | 712 | TClonesArray &lhits = *fHits; |
cfce8870 | 713 | |
fe4da5cc | 714 | // |
0a6d8768 | 715 | if(gMC->TrackCharge() && gMC->IsTrackEntering()) { |
fe4da5cc | 716 | // |
717 | // Only entering charged tracks | |
0a6d8768 | 718 | if((id=gMC->CurrentVolID(copy))==fIdSens1) { |
fe4da5cc | 719 | vol[1]=copy+23; |
0a6d8768 | 720 | id=gMC->CurrentVolOffID(1,copy); |
fe4da5cc | 721 | vol[0]=copy+24; |
722 | } else if(id==fIdSens2) { | |
723 | vol[1]=copy; | |
0a6d8768 | 724 | id=gMC->CurrentVolOffID(1,copy); |
fe4da5cc | 725 | vol[0]=copy; |
726 | } else return; | |
0a6d8768 | 727 | gMC->TrackPosition(p); |
728 | for(i=0;i<3;++i) hits[i]=p[i]; | |
fe4da5cc | 729 | hits[3]=0; |
730 | new(lhits[fNhits++]) AliTPChit(fIshunt,gAlice->CurrentTrack(),vol,hits); | |
731 | } | |
732 | } |