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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 | /* $Id$ */ | |
17 | ||
18 | //------------------------------------------------------------------------- | |
19 | // Beam pipe class | |
20 | // Default version | |
21 | // Author: A.Morsch | |
22 | //------------------------------------------------------------------------- | |
23 | ||
24 | #include <Riostream.h> | |
25 | ||
26 | #include <TGeoGlobalMagField.h> | |
27 | #include <TSystem.h> | |
28 | #include <TVirtualMC.h> | |
29 | ||
30 | #include "AliConst.h" | |
31 | #include "AliMagF.h" | |
32 | #include "AliPIPEv0.h" | |
33 | #include "AliRun.h" | |
34 | #include "AliLog.h" | |
35 | ||
36 | ClassImp(AliPIPEv0) | |
37 | ||
38 | ||
39 | //_____________________________________________________________________________ | |
40 | AliPIPEv0::AliPIPEv0(): | |
41 | fPipeMaterial(kBe) | |
42 | { | |
43 | // Constructor | |
44 | } | |
45 | ||
46 | //_____________________________________________________________________________ | |
47 | AliPIPEv0::AliPIPEv0(const char *name, const char *title) | |
48 | : AliPIPE(name,title), | |
49 | fPipeMaterial(kBe) | |
50 | { | |
51 | // Constructor | |
52 | } | |
53 | ||
54 | ||
55 | //___________________________________________ | |
56 | void AliPIPEv0::CreateGeometry() | |
57 | { | |
58 | //Begin_Html | |
59 | /* | |
60 | <img src="picts/pipe.gif"> | |
61 | */ | |
62 | //End_Html | |
63 | ||
64 | ||
65 | //Begin_Html | |
66 | /* | |
67 | <img src="picts/tree_pipe.gif"> | |
68 | */ | |
69 | //End_Html | |
70 | ||
71 | AliDebugClass(1,"Create PIPEv0 geometry"); | |
72 | ||
73 | ||
74 | Int_t *idtmed = fIdtmed->GetArray(); | |
75 | Float_t ppcon[90], ptube[3], pbox[3]; | |
76 | Int_t i=0; | |
77 | ||
78 | ||
79 | Int_t idrotm[2099]; | |
80 | AliMatrix(idrotm[2001],90.,240., 0., 0., 90.,150.); | |
81 | AliMatrix(idrotm[2002],90., 0., 0., 0., 90.,270.); | |
82 | AliMatrix(idrotm[2003],90.,120., 0., 0., 90., 30.); | |
83 | AliMatrix(idrotm[2004],90.,315., 90., 45., 0., 0.); | |
84 | AliMatrix(idrotm[2005],90.,270., 90., 0., 0., 0.); | |
85 | AliMatrix(idrotm[2006],90.,225., 90.,315., 0., 0.); | |
86 | AliMatrix(idrotm[2007],90.,180., 90.,270., 0., 0.); | |
87 | AliMatrix(idrotm[2008],90.,135., 90.,225., 0., 0.); | |
88 | AliMatrix(idrotm[2009],90., 90., 90.,180., 0., 0.); | |
89 | AliMatrix(idrotm[2010],90., 45., 90.,135., 0., 0.); | |
90 | idrotm[2011] = 0; | |
91 | AliMatrix(idrotm[2012],90.,180., 90., 90.,180., 0.); | |
92 | AliMatrix(idrotm[2013],90., 0., 90., 90.,180., 0.); | |
93 | // | |
94 | // Bellow | |
95 | // | |
96 | // distance between bellows | |
97 | // total size of bellow section | |
98 | const Float_t kdzb = 14.6; | |
99 | // size of undulated region | |
100 | // | |
101 | // Absorber side | |
102 | // | |
103 | // distance between bellows | |
104 | const Float_t kdzbbA = 4.6; | |
105 | // total size of bellow section | |
106 | const Float_t kdzbA = 14.6; | |
107 | // size of undulated region | |
108 | const Float_t kdzubA = 3.75; | |
109 | ||
110 | // half-lengths of various beam pipe sections | |
111 | // central Be-Pipe | |
112 | Float_t hlenQbbe1 = 40.; | |
113 | Float_t hlenQbbe2 = 36.5; | |
114 | Float_t hlenQbbe = (hlenQbbe1+hlenQbbe2)/2.; | |
115 | // | |
116 | // | |
117 | // Float_t hlenQbt1 = 5.5/2.; | |
118 | // | |
119 | // Pipe outside central region (non-absorber side) | |
120 | Float_t hlenQbab = 157.5 + 23./2.; | |
121 | // | |
122 | // Flange non-absorber side | |
123 | Float_t hlenQb29 = 11.5/2.+1.75 + 5.0; | |
124 | // | |
125 | // Bellow element | |
126 | Float_t hlenQbe0 = kdzbA; | |
127 | // | |
128 | // Inox pipe between Be and Bellow (absorber side) | |
129 | Float_t hlenQb24[3] = {11.3/2., 1.8, 3.3}; | |
130 | // | |
131 | // | |
132 | Float_t hlenQb28 = (800.-hlenQbbe1-2.*hlenQbab-4.*hlenQb29-2.*hlenQbe0)/2.; | |
133 | // | |
134 | // Position of the pump | |
135 | Float_t zPump = hlenQbbe1+2.*hlenQbab+2.*hlenQb29+kdzb; | |
136 | // | |
137 | // Inner beam pipe radius | |
138 | // Be | |
139 | const Float_t kRinBe = 2.9; | |
140 | // Steel | |
141 | const Float_t kRinSt = 2.9; | |
142 | // Bellow | |
143 | const Float_t kRinSB = 2.92; | |
144 | // | |
145 | // Outer beam pipe radius | |
146 | // Be | |
147 | const Float_t kRoutBe = 2.98; | |
148 | // Steel | |
149 | const Float_t kRoutSt = 2.98; | |
150 | // Bellow | |
151 | const Float_t kRoutSB = 3.00; | |
152 | ||
153 | // | |
154 | Float_t dz; | |
155 | ||
156 | // | |
157 | // The peam pipe up to the Front Absorber | |
158 | // | |
159 | // Mother Volume QBPM | |
160 | ppcon[0] = 0; | |
161 | ppcon[1] = 360; | |
162 | ppcon[2] = 20; | |
163 | // 1 | |
164 | ppcon[3] = -90.; | |
165 | ppcon[4] = 0.; | |
166 | ppcon[5] = 3.1; | |
167 | // 2 | |
168 | ppcon[6] = -84.; | |
169 | ppcon[7] = 0.; | |
170 | ppcon[8] = 3.1; | |
171 | // 3 | |
172 | ppcon[9] = -84.; | |
173 | ppcon[10] = 0.; | |
174 | ppcon[11] = 4.4; | |
175 | // 4 | |
176 | ppcon[12] = -90+2.*hlenQb24[2]+2.8+2.*hlenQb24[1]; | |
177 | ppcon[13] = 0.; | |
178 | ppcon[14] = 4.4; | |
179 | // 5 | |
180 | ppcon[15] = ppcon[12]; | |
181 | ppcon[16] = 0.; | |
182 | ppcon[17] = 4.1; | |
183 | // 6 | |
184 | ppcon[18] = ppcon[15] + 2.5 + 2.*kdzubA+0.2; | |
185 | ppcon[19] = 0.; | |
186 | ppcon[20] = 4.1; | |
187 | // 7 | |
188 | ppcon[21] = ppcon[18]; | |
189 | ppcon[22] = 0.; | |
190 | ppcon[23] = 3.2; | |
191 | // 8 | |
192 | ppcon[24] = ppcon[21] + 2.* kdzbbA-0.4; | |
193 | ppcon[25] = 0.; | |
194 | ppcon[26] = 3.2; | |
195 | // 9 | |
196 | ppcon[27] = ppcon[24]; | |
197 | ppcon[28] = 0.; | |
198 | ppcon[29] = 4.1; | |
199 | // 10 | |
200 | ppcon[30] = -44.; | |
201 | ppcon[31] = 0.; | |
202 | ppcon[32] = 4.1; | |
203 | // 11 | |
204 | ppcon[33] = -44.; | |
205 | ppcon[34] = 0; | |
206 | ppcon[35] = 3.06; | |
207 | // 12 | |
208 | ppcon[36] = 38.; | |
209 | ppcon[37] = 0; | |
210 | ppcon[38] = 3.06; | |
211 | // 13 | |
212 | ppcon[39] = 38.; | |
213 | ppcon[40] = 0; | |
214 | ppcon[41] = 4.1; | |
215 | // 14 | |
216 | ppcon[42] = hlenQbbe1+2.*hlenQbab-0.1; | |
217 | ppcon[43] = 0.; | |
218 | ppcon[44] = 4.1; | |
219 | // 15 | |
220 | ppcon[45] = ppcon[42]; | |
221 | ppcon[46] = 0.; | |
222 | ppcon[47] = 4.1; | |
223 | // 16 | |
224 | ppcon[48] = ppcon[45]+2.*hlenQb29-5.; | |
225 | ppcon[49] = 0.; | |
226 | ppcon[50] = 4.1; | |
227 | // 17 | |
228 | ppcon[51] = ppcon[48]; | |
229 | ppcon[52] = 0.; | |
230 | ppcon[53] = 56.; | |
231 | // 18 | |
232 | ppcon[54] = ppcon[51]+2.*kdzb+10.; | |
233 | ppcon[55] = 0.; | |
234 | ppcon[56] = 56.; | |
235 | // 19 | |
236 | ppcon[57] = ppcon[54]; | |
237 | ppcon[58] = 0.; | |
238 | ppcon[59] = 4.1; | |
239 | // 20 | |
240 | ppcon[60] = 800.; | |
241 | ppcon[61] = 0.; | |
242 | ppcon[62] = 4.1; | |
243 | ||
244 | gMC->Gsvolu("QBPM", "PCON", idtmed[kAir], ppcon,63); | |
245 | ||
246 | ||
247 | // | |
248 | // volume definitions of various sections | |
249 | // | |
250 | ||
251 | // | |
252 | // The Vacuum | |
253 | gMC->Gsvolu("QBVA","TUBE", idtmed[kVac], ptube, 0); | |
254 | ptube[0] = 0.0; | |
255 | ptube[1] = kRinSt; | |
256 | ptube[2] = (90.-hlenQbbe2)/2.; | |
257 | dz = -90. + ptube[2]; | |
258 | gMC->Gsposp ("QBVA", 1, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3); | |
259 | dz = dz + ptube[2]; | |
260 | ||
261 | ptube[1] = kRinBe; | |
262 | ptube[2] = hlenQbbe+hlenQbab; | |
263 | dz = dz + ptube[2]; | |
264 | gMC->Gsposp ("QBVA", 2, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3); | |
265 | dz = dz + ptube[2]; | |
266 | ||
267 | ptube[1] = kRinSt; | |
268 | ptube[2] = (800.-hlenQbbe1-2.*hlenQbab)/2.; | |
269 | dz = dz + ptube[2]; | |
270 | gMC->Gsposp ("QBVA", 3, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3); | |
271 | ||
272 | // | |
273 | // Be Pipe in central Alice | |
274 | ptube[0] = kRinBe; | |
275 | ptube[1] = kRoutBe; | |
276 | ptube[2] = hlenQbbe; | |
277 | ||
278 | gMC->Gsvolu("QBBE","TUBE", idtmed[kBe], ptube, 3); | |
279 | ||
280 | // | |
281 | // Support Ring | |
282 | // | |
283 | // Mother | |
284 | ptube[0] = kRoutSB; | |
285 | ptube[1] = 4.0; | |
286 | ptube[2] = 0.6; | |
287 | gMC->Gsvolu("QBSR", "TUBE", idtmed[kAlu], ptube,3); | |
288 | // Inner support | |
289 | ptube[0] = kRoutSB; | |
290 | ptube[1] = 3.5; | |
291 | gMC->Gsvolu("QBSS", "TUBE", idtmed[kPA], ptube,3); | |
292 | gMC->Gspos("QBSS", 1, "QBSR", 0.0, 0.0, 0.0, 0, "ONLY"); | |
293 | ||
294 | gMC->Gspos("QBSR", 1, "QBPM", 0.0, 0.0, 40., 0, "ONLY"); | |
295 | gMC->Gspos("QBSR", 2, "QBPM", 0.0, 0.0, 150., 0, "ONLY"); | |
296 | gMC->Gspos("QBSR", 3, "QBPM", 0.0, 0.0, 260., 0, "ONLY"); | |
297 | gMC->Gspos("QBSR", 4, "QBPM", 0.0, 0.0,- 46., 0, "ONLY"); | |
298 | // | |
299 | // Flange and Fixed Point: non absorber side | |
300 | // | |
301 | // ----------> | |
302 | // | |
303 | // Mother | |
304 | ppcon[0] = 0; | |
305 | ppcon[1] = 360; | |
306 | ppcon[2] = 4; | |
307 | // 1: | |
308 | ppcon[3] = -hlenQb29; | |
309 | ppcon[4] = kRinSt; | |
310 | ppcon[5] = 5.8; | |
311 | // 2 | |
312 | ppcon[6] = ppcon[3]+3.6; | |
313 | ppcon[7] = kRinSt; | |
314 | ppcon[8] = 5.8; | |
315 | // 3 | |
316 | ppcon[9] = ppcon[6]; | |
317 | ppcon[10] = kRinSt; | |
318 | ppcon[11] = 3.6; | |
319 | // 4 | |
320 | ppcon[12] = hlenQb29; | |
321 | ppcon[13] = kRinSt; | |
322 | ppcon[14] = 3.6; | |
323 | ||
324 | gMC->Gsvolu("QB29", "PCON", idtmed[kAir], ppcon,15); | |
325 | ||
326 | ||
327 | // Flange | |
328 | ptube[0] = kRinSt; | |
329 | ptube[1] = 5.7; | |
330 | ptube[2] = 1.75; | |
331 | gMC->Gsvolu("QF29","TUBE", idtmed[kInox], ptube, 3); | |
332 | gMC->Gspos("QF29", 1, "QB29", 0.0, 0.0, -hlenQb29+1.75, 0, "ONLY"); | |
333 | // Pipe | |
334 | ptube[0] = kRinSt; | |
335 | ptube[1] = 3.06; | |
336 | ptube[2] = hlenQb29; | |
337 | gMC->Gsvolu("QS29","TUBE", idtmed[kInox], ptube, 3); | |
338 | gMC->Gspos("QS29", 1, "QB29", 0.0, 0.0, 0., 0, "ONLY"); | |
339 | // Fixed point | |
340 | ptube[0] = kRinSt; | |
341 | ptube[1] = 3.5; | |
342 | ptube[2] = 0.3; | |
343 | gMC->Gsvolu("QP29","TUBE", idtmed[kInox], ptube, 3); | |
344 | gMC->Gspos("QP29", 1, "QB29", 0.0, 0.0, -hlenQb29+9.75+3., 0, "ONLY"); | |
345 | ||
346 | // | |
347 | // | |
348 | // Inox beam pipe: final section on non-absorber side | |
349 | ||
350 | ptube[0] = kRinSt; | |
351 | ptube[1] = kRoutSt; | |
352 | ptube[2] = hlenQb28; | |
353 | ||
354 | gMC->Gsvolu("QB28","TUBE", idtmed[kInox], ptube, 3); | |
355 | // | |
356 | // | |
357 | // Air with high transport cuts outside QB28 | |
358 | ptube[0] = 25.; | |
359 | ptube[1] = 100.; | |
360 | ptube[2] = hlenQb28; | |
361 | ||
362 | gMC->Gsvolu("QA28","TUBE", idtmed[kAirHigh], ptube, 3); | |
363 | gMC->Gsatt("QA28", "SEEN", 0); | |
364 | // Al-Be (40-60 wgt%, rho=2.7 g/cm**3) beam pipe | |
365 | // | |
366 | // This section is under study (A.M. 1/2/2002) | |
367 | // | |
368 | ||
369 | ptube[0] = kRinBe; | |
370 | if (fPipeMaterial == kAlu) { | |
371 | ptube[1] = 3.06; | |
372 | } else if (fPipeMaterial == kBe) { | |
373 | ptube[1] = kRoutBe; | |
374 | } else if (fPipeMaterial == kInox){ | |
375 | ptube[1] = kRoutSt; | |
376 | } | |
377 | ptube[2] = hlenQbab; | |
378 | ||
379 | gMC->Gsvolu("QBAB","TUBE", idtmed[fPipeMaterial], ptube, 3); | |
380 | ||
381 | // 2.5 mm thick SS tube for hanging pump | |
382 | /* | |
383 | ptube[0] = Rin; | |
384 | ptube[1] = 3.15; | |
385 | ptube[2] = hlenQb26; | |
386 | ||
387 | gMC->Gsvolu("QB26","TUBE", idtmed[kInox], ptube, 3); | |
388 | */ | |
389 | // | |
390 | // Bellows | |
391 | // | |
392 | // | |
393 | // Mother Volume | |
394 | Float_t pconQBE0[33]; | |
395 | pconQBE0[ 0]= 0; | |
396 | pconQBE0[ 1]= 360; | |
397 | pconQBE0[ 2]= 10; | |
398 | // 1 | |
399 | pconQBE0[ 3] = -kdzbA; | |
400 | pconQBE0[ 4] = kRinSB; | |
401 | pconQBE0[ 5] = kRoutSB; | |
402 | // | |
403 | pconQBE0[ 6] = -kdzbA+2.5; | |
404 | pconQBE0[ 7] = kRinSB; | |
405 | pconQBE0[ 8] = kRoutSB; | |
406 | // 2 | |
407 | pconQBE0[ 9] = -kdzbA+2.5; | |
408 | pconQBE0[10] = kRinSB; | |
409 | pconQBE0[11] = 3.60; | |
410 | // 3 | |
411 | pconQBE0[12] = -kdzbA+2.5+2.*kdzubA; | |
412 | pconQBE0[13] = kRinSB; | |
413 | pconQBE0[14] = 3.60; | |
414 | // 4 | |
415 | pconQBE0[15] = -kdzbA+2.5+2.*kdzubA; | |
416 | pconQBE0[16] = kRinSB; | |
417 | pconQBE0[17] = kRoutSB; | |
418 | // 5 | |
419 | pconQBE0[18] = -kdzbA+2.5+2.*kdzubA+2.*kdzbbA; | |
420 | pconQBE0[19] = kRinSB; | |
421 | pconQBE0[20] = kRoutSB; | |
422 | // 6 | |
423 | pconQBE0[21] = -kdzbA+2.5+2.*kdzubA+2.*kdzbbA; | |
424 | pconQBE0[22] = kRinSB; | |
425 | pconQBE0[23] = 3.60; | |
426 | // 7 | |
427 | pconQBE0[24] = -kdzbA+2.5+4.*kdzubA+2.*kdzbbA; | |
428 | pconQBE0[25] = kRinSB; | |
429 | pconQBE0[26] = 3.60; | |
430 | // 8 | |
431 | pconQBE0[27] = -kdzbA+2.5+4.*kdzubA+2.*kdzbbA; | |
432 | pconQBE0[28] = kRinSB; | |
433 | pconQBE0[29] = kRoutSB; | |
434 | // 9 | |
435 | pconQBE0[30] = -kdzbA+5.0+4.*kdzubA+2.*kdzbbA; | |
436 | pconQBE0[31] = kRinSB; | |
437 | pconQBE0[32] = kRoutSB; | |
438 | ||
439 | gMC->Gsvolu("QBE0", "PCON", idtmed[kAir], pconQBE0, 33); | |
440 | // | |
441 | // Undulated piece mother | |
442 | ptube[0] = kRinSB; | |
443 | ptube[1] = 3.60; | |
444 | ptube[2] = kdzubA; | |
445 | gMC->Gsvolu("QBEM","TUBE", idtmed[kAir], ptube, 3); | |
446 | dz = -kdzbA+kdzubA+2.5; | |
447 | gMC->Gspos("QBEM", 2 ,"QBE0", 0.0, 0.0, dz, 0 , "ONLY"); | |
448 | gMC->Gspos("QBEM", 1 ,"QBE0", 0.0, 0.0, -dz, idrotm[2012], "ONLY"); | |
449 | // | |
450 | Float_t pund[30]; | |
451 | Float_t uw = 0.02; | |
452 | Float_t ur = 2.*kdzubA-36.*uw; | |
453 | Float_t uz = ur/37.; | |
454 | Float_t ut = uz+uw; | |
455 | ||
456 | pund[ 0] = 0; | |
457 | pund[ 1] = 360; | |
458 | pund[ 2] = 8; | |
459 | ||
460 | pund[ 3] = -ut; | |
461 | pund[ 4] = kRinSB; | |
462 | pund[ 5] = kRinSB+uw; | |
463 | ||
464 | pund[ 6] = -ut+uz; | |
465 | pund[ 7] = pund[4]; | |
466 | pund[ 8] = pund[5]; | |
467 | ||
468 | pund[ 9] = pund[6]; | |
469 | pund[10] = pund[4]; | |
470 | pund[11] = 3.6; | |
471 | ||
472 | pund[12] = pund[9]+uw; | |
473 | pund[13] = pund[10]; | |
474 | pund[14] = pund[11]; | |
475 | ||
476 | pund[15] = pund[12]; | |
477 | pund[16] = 3.6-uw; | |
478 | pund[17] = pund[14]; | |
479 | ||
480 | pund[18] = pund[12]+uz; | |
481 | pund[19] = pund[16]; | |
482 | pund[20] = pund[17]; | |
483 | ||
484 | pund[21] = pund[18]; | |
485 | pund[22] = kRinSB; | |
486 | pund[23] = pund[20]; | |
487 | ||
488 | pund[24] = pund[21]+uw; | |
489 | pund[25] = pund[22]; | |
490 | pund[26] = pund[23]; | |
491 | ||
492 | gMC->Gsvolu("QBEU", "PCON", idtmed[kInox], pund, 27); | |
493 | ||
494 | for (i = 0; i < 18; i++) | |
495 | { | |
496 | dz = -kdzubA+(1+2*i)*ut; | |
497 | gMC->Gspos("QBEU", i+1 ,"QBEM", 0.0, 0.0, dz, 0 , "ONLY"); | |
498 | } | |
499 | ptube[0] = kRinSB; | |
500 | ptube[1] = kRinSB+uw; | |
501 | ptube[2] = uz; | |
502 | gMC->Gsvolu("QBEW","TUBE", idtmed[kInox], ptube, 3); | |
503 | gMC->Gspos("QBEW", 1 ,"QBEM", 0.0, 0.0, kdzubA-uz, 0 , "ONLY"); | |
504 | ||
505 | // | |
506 | // BeamPipe | |
507 | gMC->Gsvolu("QBEP","TUBE", idtmed[kInox], ptube, 0); | |
508 | ptube[0] = kRinSB; | |
509 | ptube[1] = kRoutSB; | |
510 | ptube[2] = 1.25; | |
511 | gMC->Gsposp("QBEP", 1 ,"QBE0", 0.0, 0.0, -kdzbA+1.25, 0 , "ONLY", ptube, 3); | |
512 | gMC->Gsposp("QBEP", 2 ,"QBE0", 0.0, 0.0, kdzbA-1.25, 0 , "ONLY", ptube, 3); | |
513 | ptube[2] = kdzbbA; | |
514 | gMC->Gsposp("QBEP", 3 ,"QBE0", 0.0, 0.0, 0., 0 , "ONLY", ptube, 3); | |
515 | // | |
516 | // | |
517 | // ----> End Bellow | |
518 | // | |
519 | // **** Placement of various sections on non-absorber side **** | |
520 | // | |
521 | // | |
522 | // first the beryllium section | |
523 | Float_t zpos = -(hlenQbbe2-hlenQbbe1)/2; | |
524 | gMC->Gspos("QBBE", 1, "QBPM", 0., 0., zpos, 0, "ONLY"); | |
525 | ||
526 | // next meta-metal transition QBT1 on on-absorber side | |
527 | // zpos = zpos + hlenQbbe + hlenQbt1; | |
528 | // gMC->Gspos("QBT1", 1, "QBPM", 0., 0., zpos, 0, "ONLY"); | |
529 | ||
530 | // Aluminium OR Al-be alloy section | |
531 | zpos = hlenQbbe1+hlenQbab; | |
532 | gMC->Gspos("QBAB", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY"); | |
533 | // | |
534 | // inox flange at the start of bellow | |
535 | zpos = zpos + hlenQbab + hlenQb29; | |
536 | gMC->Gspos("QB29", 1, "QBPM", 0.0, 0.0, zpos, idrotm[2012], "ONLY"); | |
537 | // | |
538 | // bellow section | |
539 | zpos = zpos + hlenQb29 + hlenQbe0; | |
540 | gMC->Gspos("QBE0", 2 ,"QBPM", 0.0, 0.0, zpos, 0, "ONLY"); | |
541 | // | |
542 | // inox flange at the end of bellow and start of thick inox for pump | |
543 | zpos = zpos + hlenQbe0 + hlenQb29; | |
544 | gMC->Gspos("QB29", 2, "QBPM", 0.0, 0.0, zpos, 0, "ONLY"); | |
545 | // | |
546 | //last inox section till 800 cm | |
547 | zpos = zpos + hlenQb29 + hlenQb28; | |
548 | gMC->Gspos("QB28", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY"); | |
549 | gMC->Gspos("QA28", 1, "ALIC", 0.0, 0.0, zpos, 0, "ONLY"); | |
550 | ||
551 | //******** end of placement on non-absorber side ********* | |
552 | // | |
553 | // **** Absorber side ***** | |
554 | // | |
555 | // | |
556 | // | |
557 | // Beam pipes between elements | |
558 | // | |
559 | gMC->Gsvolu("QB24","TUBE", idtmed[kInox], ptube, 0); | |
560 | ptube[0] = kRinSt; | |
561 | ptube[1] = kRoutSt; | |
562 | ptube[2] = hlenQb24[0]; | |
563 | Float_t bpbe[33]; | |
564 | bpbe[ 0] = 0.; | |
565 | bpbe[ 1] = 360.; | |
566 | bpbe[ 2] = 10.; | |
567 | // 1 | |
568 | bpbe[ 3] = -hlenQb24[0]; | |
569 | bpbe[ 4] = kRinSB; | |
570 | bpbe[ 5] = kRoutSB; | |
571 | // 2 | |
572 | bpbe[ 6] = hlenQb24[0] - 5.8; | |
573 | bpbe[ 7] = kRinSB; | |
574 | bpbe[ 8] = kRoutSB; | |
575 | // 3 | |
576 | bpbe[ 9] = hlenQb24[0] - 5.8; | |
577 | bpbe[10] = kRinSt; | |
578 | bpbe[11] = 3.05; | |
579 | // 4 | |
580 | bpbe[12] = hlenQb24[0] - 4.5; | |
581 | bpbe[13] = kRinSt; | |
582 | bpbe[14] = 3.05; | |
583 | // 5 | |
584 | bpbe[15] = hlenQb24[0] - 4.5; | |
585 | bpbe[16] = kRinSt; | |
586 | bpbe[17] = kRoutSt ; | |
587 | // 6 | |
588 | bpbe[18] = hlenQb24[0] - 3.5; | |
589 | bpbe[19] = kRinSt; | |
590 | bpbe[20] = kRoutSt ; | |
591 | // 7 | |
592 | bpbe[21] = hlenQb24[0] - 3.5; | |
593 | bpbe[22] = kRinSt; | |
594 | bpbe[23] = 3.05; | |
595 | // 8 | |
596 | bpbe[24] = hlenQb24[0] - 3.0; | |
597 | bpbe[25] = kRinSt; | |
598 | bpbe[26] = 3.05; | |
599 | // 9 | |
600 | bpbe[27] = hlenQb24[0] - 3.0; | |
601 | bpbe[28] = kRinSt; | |
602 | bpbe[29] = kRoutSt; | |
603 | // 10 | |
604 | bpbe[30] = hlenQb24[0]; | |
605 | bpbe[31] = kRinSt; | |
606 | bpbe[32] = kRoutSt; | |
607 | ||
608 | gMC->Gsvolu("QA24","PCON", idtmed[kInox], bpbe, 33); | |
609 | ||
610 | dz = hlenQbbe2 + hlenQb24[0]; | |
611 | ||
612 | gMC->Gspos("QA24", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY"); | |
613 | // | |
614 | // Bellow on absorber side | |
615 | ||
616 | dz = dz+hlenQb24[0] + kdzbA; | |
617 | gMC->Gspos("QBE0", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY"); | |
618 | // | |
619 | ptube[2] = hlenQb24[1]; | |
620 | dz = dz + kdzb + ptube[2]; | |
621 | gMC->Gsposp("QB24", 2 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY", ptube, 3); | |
622 | dz = dz + ptube[2]; | |
623 | ||
624 | // | |
625 | // Flange | |
626 | // | |
627 | // Mother Volume | |
628 | ptube[0] = kRinSB; | |
629 | ptube[1] = 4.300; | |
630 | ptube[2] = 1.4; | |
631 | ||
632 | gMC->Gsvolu("QFA0","TUBE", idtmed[kInox], ptube, 3); | |
633 | dz = dz + ptube[2]; | |
634 | gMC->Gspos("QFA0", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY"); | |
635 | dz = dz + ptube[2]; | |
636 | // | |
637 | // | |
638 | ptube[0] = kRinSB; | |
639 | ptube[1] = kRoutSB; | |
640 | ptube[2] = hlenQb24[2]; | |
641 | dz = dz + ptube[2]; | |
642 | gMC->Gsposp("QB24", 3 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY", ptube, 3); | |
643 | ||
644 | // --- Place the PIPE ghost volume (QBPM) in its mother volume (ALIC) | |
645 | // by rotating it to 180 deg. and make it invisible | |
646 | // | |
647 | gMC->Gspos("QBPM",1,"ALIC", 0, 0, 0, 0, "ONLY"); | |
648 | gMC->Gsbool("QBPM", "L3DX"); | |
649 | gMC->Gsbool("QBPM", "L3O3"); | |
650 | gMC->Gsbool("QBPM", "L3O4"); | |
651 | ||
652 | ||
653 | // | |
654 | // ******** Ion Pump volume description starts here ****** | |
655 | // | |
656 | // | |
657 | // Getters -> | |
658 | pbox[0] = 6.50; | |
659 | pbox[1] = 6.75; | |
660 | pbox[2] = 15.60; | |
661 | gMC->Gsvolu("QI32","BOX", idtmed[kInox], pbox, 3); | |
662 | ||
663 | pbox[0] = 5.90; | |
664 | pbox[1] = 6.15; | |
665 | pbox[2] = 15.00; | |
666 | gMC->Gsvolu("QI42","BOX", idtmed[kGetter], pbox, 3); | |
667 | gMC->Gspos("QI42", 1, "QI32", 0.0, 0.0, 0.0, 0, "ONLY"); | |
668 | // <- | |
669 | ||
670 | ptube[0] = 0.0; | |
671 | ptube[1] = 19.0; | |
672 | ptube[2] = 2.5; | |
673 | gMC->Gsvolu("QI33","TUBE", idtmed[kInox], ptube, 3); | |
674 | ||
675 | ||
676 | ptube[0] = 0.0; | |
677 | ptube[1] = 15.0; | |
678 | ptube[2] = 2.5; | |
679 | gMC->Gsvolu("QI43","TUBE", idtmed[kAir], ptube, 3); | |
680 | gMC->Gspos("QI43", 1, "QI33", 0.0, 0.0, 0.0, 0, "ONLY"); | |
681 | // | |
682 | // Connecting tube -> | |
683 | ptube[0] = 0.0; | |
684 | ptube[1] = 4.5; | |
685 | ptube[2] = 14.6; | |
686 | gMC->Gsvolu("QI34","TUBE", idtmed[kInox], ptube, 3); | |
687 | ||
688 | ptube[0] = 0.0; | |
689 | ptube[1] = 3.9; | |
690 | ptube[2] = 14.6; | |
691 | gMC->Gsvolu("QI44","TUBE", idtmed[kAir], ptube, 3); | |
692 | gMC->Gspos("QI44", 1, "QI34", 0.0, 0.0, 0.0, 0, "ONLY"); | |
693 | // <- | |
694 | ||
695 | // | |
696 | // Flange -> | |
697 | ptube[0] = 4.6; | |
698 | ptube[1] = 7.30; | |
699 | ptube[2] = 2.15; | |
700 | gMC->Gsvolu("QI35","TUBE", idtmed[kInox], ptube, 3); | |
701 | // <- | |
702 | gMC->Gspos("QI32", 1, "QBPM", 0.0, -44.25, zPump, 0, "ONLY"); | |
703 | gMC->Gspos("QI33", 1, "QBPM", 0.0, -35.00, zPump,idrotm[2002], "ONLY"); | |
704 | gMC->Gspos("QI34", 1, "QBPM", 0.0, -17.90, zPump,idrotm[2002], "ONLY"); | |
705 | gMC->Gspos("QI35", 1, "QBPM", 0.0, -24.35, zPump,idrotm[2002], "ONLY"); | |
706 | ||
707 | gMC->Gsatt("QBPM", "SEEN", 1); | |
708 | gMC->Gsatt("QBEM", "SEEN", 1); | |
709 | } | |
710 | ||
711 | ||
712 | ||
713 | //___________________________________________ | |
714 | void AliPIPEv0::CreateMaterials() | |
715 | { | |
716 | // | |
717 | // Define materials for beam pipe | |
718 | // | |
719 | ||
720 | AliDebugClass(1,"Create PIPEv0 materials"); | |
721 | Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); | |
722 | Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); | |
723 | // Steel (Inox) | |
724 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
725 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
726 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
727 | // AlBe - alloy | |
728 | Float_t aAlBe[2] = { 26.98, 9.01}; | |
729 | Float_t zAlBe[2] = { 13.00, 4.00}; | |
730 | Float_t wAlBe[2] = { 0.4, 0.6}; | |
731 | // | |
732 | // Polyamid | |
733 | Float_t aPA[4] = {16., 14., 12., 1.}; | |
734 | Float_t zPA[4] = { 8., 7., 6., 1.}; | |
735 | Float_t wPA[4] = { 1., 1., 6., 11.}; | |
736 | // | |
737 | // Air | |
738 | // | |
739 | Float_t aAir[4]={12.0107,14.0067,15.9994,39.948}; | |
740 | Float_t zAir[4]={6.,7.,8.,18.}; | |
741 | Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827}; | |
742 | Float_t dAir = 1.20479E-3; | |
743 | Float_t dAir1 = 1.20479E-10; | |
744 | // | |
745 | // Kapton | |
746 | // | |
747 | Float_t aKapton[4]={1.00794,12.0107, 14.010,15.9994}; | |
748 | Float_t zKapton[4]={1.,6.,7.,8.}; | |
749 | Float_t wKapton[4]={0.026362,0.69113,0.07327,0.209235}; | |
750 | Float_t dKapton = 1.42; | |
751 | // | |
752 | // Berillium | |
753 | AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7); | |
754 | // | |
755 | // Carbon | |
756 | AliMaterial(6, "CARBON$ ", 12.01, 6., 2.265, 18.8, 49.9); | |
757 | // | |
758 | // Aluminum | |
759 | AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); | |
760 | // | |
761 | // Air | |
762 | AliMixture(15, "AIR$", aAir, zAir, dAir, 4, wAir); | |
763 | AliMixture(35, "AIR_HIGH$", aAir, zAir, dAir, 4, wAir); | |
764 | // | |
765 | // Vacuum | |
766 | AliMixture(16, "VACUUM$ ", aAir, zAir, dAir1, 4, wAir); | |
767 | // | |
768 | // stainless Steel | |
769 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
770 | // | |
771 | // reduced density steel to approximate pump getter material | |
772 | AliMixture(20, "GETTER$", asteel, zsteel, 1.00, 4, wsteel); | |
773 | // Al-Be alloy | |
774 | // | |
775 | AliMixture(21, "AlBe$", aAlBe, zAlBe, 2.07, 2, wAlBe); | |
776 | // Polyamid | |
777 | // | |
778 | AliMixture(22, "PA$", aPA, zPA, 1.14, -4, wPA); | |
779 | // | |
780 | // Kapton | |
781 | AliMixture(23, "KAPTON", aKapton, zKapton, dKapton, 4, wKapton); | |
782 | // | |
783 | // **************** | |
784 | // Defines tracking media parameters. | |
785 | // | |
786 | Float_t epsil = .001; // Tracking precision, | |
787 | Float_t stemax = -0.01; // Maximum displacement for multiple scat | |
788 | Float_t tmaxfd = -20.; // Maximum angle due to field deflection | |
789 | Float_t deemax = -.3; // Maximum fractional energy loss, DLS | |
790 | Float_t stmin = -.8; | |
791 | // *************** | |
792 | // | |
793 | // Beryllium | |
794 | ||
795 | AliMedium(5, "BE", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
796 | ||
797 | // Carbon | |
798 | AliMedium(6, "C", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
799 | // | |
800 | // Aluminum | |
801 | AliMedium(9, "ALU", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
802 | // | |
803 | // Air | |
804 | AliMedium(15, "AIR", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
805 | AliMedium(35, "AIR_HIFG",35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
806 | // | |
807 | // Vacuum | |
808 | AliMedium(16, "VACUUM", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
809 | // | |
810 | // Steel | |
811 | AliMedium(19, "INOX", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
812 | // | |
813 | // Getter | |
814 | AliMedium(20, "GETTER", 20, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
815 | // | |
816 | // AlBe - Aloy | |
817 | AliMedium(21, "AlBe" , 21, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
818 | // | |
819 | // Polyamid | |
820 | AliMedium(22, "PA" , 22, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
821 | // | |
822 | // KAPTON | |
823 | AliMedium(23, "KAPTON", 23, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
824 | ||
825 | } | |
826 | ||
827 | ||
828 | ||
829 | ||
830 | ||
831 | ||
832 | ||
833 | ||
834 | ||
835 |