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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$Log$
13a638e8 18Revision 1.20 2002/05/02 12:36:43 morsch
19New version of beam-pipe geometry. Ref. AL502206PL
20(used in production readiness report).
21
614dff1c 22Revision 1.19 2002/03/25 12:34:40 morsch
23Obsolete support rollers removed.
24
4a7308f7 25Revision 1.18 2002/02/01 18:02:41 morsch
26Material of beam pipe between inner Be piece and forward detectors
27can be set by SetPipeMaterial(mat), mat = kInox, kAlu, kBe ...
28
765e9e1a 29Revision 1.17 2001/09/24 13:11:50 morsch
30Ion pump and bellows moved out by 15 cm to make space for forward
31detectors.
32
22811e34 33Revision 1.16 2001/05/16 14:57:22 alibrary
34New files for folders and Stack
35
9e1a0ddb 36Revision 1.15 2001/05/02 11:50:18 morsch
37New layout of the non-absorber side provided by Y. Viyogi. Not the final design
38but the prsent most realistic.
39
cd9c4f3a 40Revision 1.14 2001/01/20 16:56:33 morsch
41Put air in connecting tubes and flanges of vacuum pump.
42
14b75006 43Revision 1.13 2001/01/20 16:35:27 morsch
44Increase mother volume for bellows.
45
1416b7f3 46Revision 1.12 2000/12/21 16:41:06 morsch
47Coding convention clean-up (RS3)
48
13391c3e 49Revision 1.11 2000/11/28 16:06:57 morsch
50Undulated beam-pipe replaced by Al-Be (40,60) pipe 1.5 mm thick.
51
2196bc42 52Revision 1.10 2000/11/24 13:00:37 morsch
53- Geometry and materials imported from euclid output
54- include comments
55- better struturing of volume tree
56- improved version of flange close to front absorber
57- more realistic pump materials
58- undulated beam pipe imported from v3.
59
7bd7faf8 60Revision 1.9 2000/10/02 21:28:15 fca
61Removal of useless dependecies via forward declarations
62
94de3818 63Revision 1.8 2000/06/11 12:37:01 morsch
64Coding rule violations corrected
65
b43eb0dc 66Revision 1.7 2000/02/23 16:25:24 fca
67AliVMC and AliGeant3 classes introduced
68ReadEuclid moved from AliRun to AliModule
69
b13db077 70Revision 1.6 1999/09/29 09:24:30 fca
71Introduction of the Copyright and cvs Log
72
4c039060 73*/
74
fe4da5cc 75////////////////////////////////////////////////
76// Beam pipe class /
77////////////////////////////////////////////////
78
fe4da5cc 79#include "AliPIPEv0.h"
80#include "AliRun.h"
7bd7faf8 81#include "AliConst.h"
82#include "AliMagF.h"
94de3818 83#include "AliMC.h"
fe4da5cc 84#include "TSystem.h"
22811e34 85
86#include <iostream.h>
fe4da5cc 87
88ClassImp(AliPIPEv0)
89
90//_____________________________________________________________________________
b8032157 91AliPIPEv0::AliPIPEv0()
fe4da5cc 92{
b43eb0dc 93// Constructor
765e9e1a 94 SetPipeMaterial();
fe4da5cc 95}
96
97//_____________________________________________________________________________
98AliPIPEv0::AliPIPEv0(const char *name, const char *title)
99 : AliPIPE(name,title)
100{
b43eb0dc 101// Constructor
765e9e1a 102 SetPipeMaterial();
fe4da5cc 103}
104
105
106//___________________________________________
107void AliPIPEv0::CreateGeometry()
108{
fe4da5cc 109//Begin_Html
110/*
1439f98e 111<img src="picts/pipe.gif">
fe4da5cc 112*/
113//End_Html
114
115
116//Begin_Html
117/*
1439f98e 118<img src="picts/tree_pipe.gif">
fe4da5cc 119*/
120//End_Html
121
9e1a0ddb 122 if(fDebug) printf("%s: Create PIPEv0 geometry \n",ClassName());
fe4da5cc 123
fe4da5cc 124
7bd7faf8 125 Int_t *idtmed = fIdtmed->GetArray();
22811e34 126 Float_t ppcon[84], ptube[3], pbox[3];
7bd7faf8 127 Int_t i=0;
128
7bd7faf8 129
130 Int_t idrotm[2099];
131 AliMatrix(idrotm[2001],90.,240., 0., 0., 90.,150.);
132 AliMatrix(idrotm[2002],90., 0., 0., 0., 90.,270.);
133 AliMatrix(idrotm[2003],90.,120., 0., 0., 90., 30.);
134 AliMatrix(idrotm[2004],90.,315., 90., 45., 0., 0.);
135 AliMatrix(idrotm[2005],90.,270., 90., 0., 0., 0.);
136 AliMatrix(idrotm[2006],90.,225., 90.,315., 0., 0.);
137 AliMatrix(idrotm[2007],90.,180., 90.,270., 0., 0.);
138 AliMatrix(idrotm[2008],90.,135., 90.,225., 0., 0.);
139 AliMatrix(idrotm[2009],90., 90., 90.,180., 0., 0.);
140 AliMatrix(idrotm[2010],90., 45., 90.,135., 0., 0.);
141 idrotm[2011] = 0;
142 AliMatrix(idrotm[2012],90.,180., 90., 90.,180., 0.);
143 AliMatrix(idrotm[2013],90., 0., 90., 90.,180., 0.);
614dff1c 144//
145// Bellow
146//
22811e34 147// distance between bellows
614dff1c 148 const Float_t dzbb = 9.0;
149// total size of bellow section
150 const Float_t dzb = 15.0;
151// size of undulated region
152 const Float_t dzub = 2.0;
153
154// half-lengths of various beam pipe sections
155// central Be-Pipe
156 Float_t hlenQbbe1 = 40.;
157 Float_t hlenQbbe2 = 36.5;
158 Float_t hlenQbbe = (hlenQbbe1+hlenQbbe2)/2.;
159//
160//
161// Float_t hlenQbt1 = 5.5/2.;
162//
163// Pipe outside central region (non-absober side)
164 Float_t hlenQbab = 157.5;
165//
166// Flange non-absorber side
167 Float_t hlenQb29 = 11.5/2.+1.75 + 5.0;
168//
169// Bellow element
170 Float_t hlenQbe0 = dzb;
171//
172// Inox pipe between Be and Bellow (absorber side)
173 Float_t hlenQb24[3] = {10.5/2., 1.8, 3.3};
174//
175//
176 Float_t hlenQb28 = (800.-hlenQbbe1-2.*hlenQbab-4.*hlenQb29-2.*hlenQbe0)/2.;
177//
178// Position of the pump
179 Float_t zPump = hlenQbbe1+2.*hlenQbab+2.*hlenQb29+dzb;
180//
181// Inner beam pipe radius
182 Float_t RinBe = 2.9;
183 Float_t RinSt = 2.92;
184//
185//
186 Float_t RoutBe = 2.98;
187 Float_t RoutSt = 3.00;
22811e34 188
614dff1c 189
190//
191 Float_t dz;
7bd7faf8 192
fe4da5cc 193//
194// The peam pipe up to the Front Absorber
fe4da5cc 195//
7bd7faf8 196// Mother Volume QBPM
614dff1c 197 ppcon[0] = 0;
198 ppcon[1] = 360;
199 ppcon[2] = 18;
7bd7faf8 200// 1:
614dff1c 201 ppcon[3] = -90.;
202 ppcon[4] = 0.;
203 ppcon[5] = 4.4;
7bd7faf8 204// 2
614dff1c 205 ppcon[6] = -90+2.*hlenQb24[2]+2.8+2.*hlenQb24[1];
206 ppcon[7] = 0.;
207 ppcon[8] = 4.4;
7bd7faf8 208// 3
614dff1c 209 ppcon[9] = ppcon[6];
210 ppcon[10] = 0.;
211 ppcon[11] = 4.1;
22811e34 212// 4
614dff1c 213 ppcon[12] = ppcon[9] + 2. + 2.*dzub+0.2;
214 ppcon[13] = 0.;
215 ppcon[14] = 4.1;
22811e34 216// 5
614dff1c 217 ppcon[15] = ppcon[12];
218 ppcon[16] = 0.;
219 ppcon[17] = 3.2;
22811e34 220// 6
614dff1c 221 ppcon[18] = ppcon[15] + 2.* dzbb-0.4;
222 ppcon[19] = 0.;
223 ppcon[20] = 3.2;
7bd7faf8 224// 7
614dff1c 225 ppcon[21] = ppcon[18];
226 ppcon[22] = 0.;
227 ppcon[23] = 4.1;
7bd7faf8 228// 8
614dff1c 229 ppcon[24] = -44.;
230 ppcon[25] = 0.;
231 ppcon[26] = 4.1;
7bd7faf8 232// 9
614dff1c 233 ppcon[27] = -44.;
7bd7faf8 234 ppcon[28] = 0;
614dff1c 235 ppcon[29] = 3.0;
22811e34 236// 10
614dff1c 237 ppcon[30] = 38.;
7bd7faf8 238 ppcon[31] = 0;
614dff1c 239 ppcon[32] = 3.0;
22811e34 240// 11
614dff1c 241 ppcon[33] = 38.;
7bd7faf8 242 ppcon[34] = 0;
614dff1c 243 ppcon[35] = 3.6;
22811e34 244// 12
614dff1c 245 ppcon[36] = hlenQbbe1+2.*hlenQbab-0.1;
246 ppcon[37] = 0.;
247 ppcon[38] = 3.6;
248// 13
249 ppcon[39] = ppcon[36];
250 ppcon[40] = 0.;
251 ppcon[41] = 3.6;
22811e34 252// 14
614dff1c 253 ppcon[42] = ppcon[39]+2.*hlenQb29-5.;
254 ppcon[43] = 0.;
255 ppcon[44] = 3.6;
256// 15
257 ppcon[45] = ppcon[42];
258 ppcon[46] = 0.;
259 ppcon[47] = 56.;
22811e34 260// 16
614dff1c 261 ppcon[48] = ppcon[45]+2.*dzb+10.;
262 ppcon[49] = 0.;
263 ppcon[50] = 56.;
22811e34 264// 17
614dff1c 265 ppcon[51] = ppcon[48];
22811e34 266 ppcon[52] = 0.;
614dff1c 267 ppcon[53] = 3.6;
22811e34 268// 18
614dff1c 269 ppcon[54] = 800.;
22811e34 270 ppcon[55] = 0.;
614dff1c 271 ppcon[56] = 3.6;
7bd7faf8 272
614dff1c 273 gMC->Gsvolu("QBPM", "PCON", idtmed[kAir], ppcon,57);
274
275
7bd7faf8 276//
cd9c4f3a 277// volume definitions of various sections
278//
cd9c4f3a 279
614dff1c 280//
281// The Vacuum
282 gMC->Gsvolu("QBVA","TUBE", idtmed[kVac], ptube, 0);
283 ptube[0] = 0.0;
284 ptube[1] = RinSt;
285 ptube[2] = (90.-hlenQbbe2)/2.;
286 dz = -90. + ptube[2];
287 gMC->Gsposp ("QBVA", 1, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3);
288 dz = dz + ptube[2];
289
290 ptube[1] = RinBe;
291 ptube[2] = hlenQbbe+hlenQbab;
292 dz = dz + ptube[2];
293 gMC->Gsposp ("QBVA", 2, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3);
294 dz = dz + ptube[2];
295
296 ptube[1] = RinSt;
297 ptube[2] = (800.-hlenQbbe1-2.*hlenQbab)/2.;
298 dz = dz + ptube[2];
299 gMC->Gsposp ("QBVA", 3, "QBPM", 0., 0., dz , 0, "ONLY", ptube, 3);
cd9c4f3a 300
614dff1c 301//
302// Be Pipe in central Alice
303 ptube[0] = RinBe;
304 ptube[1] = RoutBe;
cd9c4f3a 305 ptube[2] = hlenQbbe;
7bd7faf8 306
307 gMC->Gsvolu("QBBE","TUBE", idtmed[kBe], ptube, 3);
7bd7faf8 308
309//
614dff1c 310// Support Ring
7bd7faf8 311//
614dff1c 312 // Mother
313 ppcon[0] = 0;
314 ppcon[1] = 360;
315 ppcon[2] = 6;
316// 1:
317 ppcon[3] = -1.;
318 ppcon[4] = 3.0;
319 ppcon[5] = 3.4;
320// 2
321 ppcon[6] = -0.8;
322 ppcon[7] = 3.0;
323 ppcon[8] = 3.4;
324// 3
325 ppcon[9] = -0.8;
326 ppcon[10] = 3.0;
327 ppcon[11] = 3.2;
328// 4
329 ppcon[12] = 0.8;
330 ppcon[13] = 3.0;
331 ppcon[14] = 3.2;
332// 5
333 ppcon[15] = 0.8;
334 ppcon[16] = 3.0;
335 ppcon[17] = 3.4;
336// 6
337 ppcon[18] = 1.0;
338 ppcon[19] = 3.0;
339 ppcon[20] = 3.4;
7bd7faf8 340
7bd7faf8 341
614dff1c 342 gMC->Gsvolu("QBSR", "PCON", idtmed[kC], ppcon,21);
343 gMC->Gspos("QBSR", 1, "QBPM", 0.0, 0.0, 40., 0, "ONLY");
344 gMC->Gspos("QBSR", 2, "QBPM", 0.0, 0.0, 150., 0, "ONLY");
345 gMC->Gspos("QBSR", 3, "QBPM", 0.0, 0.0, 260., 0, "ONLY");
346 gMC->Gspos("QBSR", 4, "QBPM", 0.0, 0.0,- 46., 0, "ONLY");
7bd7faf8 347//
614dff1c 348// Flange and Fixed Point: non absorber side
7bd7faf8 349//
614dff1c 350// ---------->
351//
352// Mother
353 ppcon[0] = 0;
354 ppcon[1] = 360;
355 ppcon[2] = 4;
356// 1:
357 ppcon[3] = -hlenQb29;
358 ppcon[4] = RinSt;
359 ppcon[5] = 5.8;
360// 2
361 ppcon[6] = ppcon[3]+3.6;
362 ppcon[7] = RinSt;
363 ppcon[8] = 5.8;
364// 3
365 ppcon[9] = ppcon[6];
366 ppcon[10] = RinSt;
367 ppcon[11] = 3.6;
368// 4
369 ppcon[12] = hlenQb29;
370 ppcon[13] = RinSt;
371 ppcon[14] = 3.6;
7bd7faf8 372
614dff1c 373 gMC->Gsvolu("QB29", "PCON", idtmed[kAir], ppcon,15);
7bd7faf8 374
7bd7faf8 375
614dff1c 376// Flange
377 ptube[0] = RinSt;
378 ptube[1] = 5.7;
379 ptube[2] = 1.75;
380 gMC->Gsvolu("QF29","TUBE", idtmed[kInox], ptube, 3);
381 gMC->Gspos("QF29", 1, "QB29", 0.0, 0.0, -hlenQb29+1.75, 0, "ONLY");
382// Pipe
383 ptube[0] = RinSt;
384 ptube[1] = 3.0;
cd9c4f3a 385 ptube[2] = hlenQb29;
614dff1c 386 gMC->Gsvolu("QS29","TUBE", idtmed[kInox], ptube, 3);
387 gMC->Gspos("QS29", 1, "QB29", 0.0, 0.0, 0., 0, "ONLY");
388// Fixed point
389 ptube[0] = RinSt;
390 ptube[1] = 3.5;
391 ptube[2] = 0.3;
392 gMC->Gsvolu("QP29","TUBE", idtmed[kInox], ptube, 3);
393 gMC->Gspos("QP29", 1, "QB29", 0.0, 0.0, -hlenQb29+9.75+3., 0, "ONLY");
22811e34 394
614dff1c 395//
7bd7faf8 396//
cd9c4f3a 397// Inox beam pipe: final section on non-absorber side
7bd7faf8 398
614dff1c 399 ptube[0] = RinSt;
400 ptube[1] = RoutSt;
cd9c4f3a 401 ptube[2] = hlenQb28;
7bd7faf8 402
403 gMC->Gsvolu("QB28","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 404
2196bc42 405
406// Al-Be (40-60 wgt%, rho=2.7 g/cm**3) beam pipe
407//
614dff1c 408// This section is under study (A.M. 1/2/2002)
765e9e1a 409//
410
614dff1c 411 ptube[0] = RinBe;
765e9e1a 412 if (fPipeMaterial == kAlu) {
413 ptube[1] = 3.0;
414 } else if (fPipeMaterial == kBe) {
614dff1c 415 ptube[1] = RoutBe;
765e9e1a 416 } else if (fPipeMaterial == kInox){
614dff1c 417 ptube[1] = RoutSt;
765e9e1a 418 }
cd9c4f3a 419 ptube[2] = hlenQbab;
2196bc42 420
765e9e1a 421 gMC->Gsvolu("QBAB","TUBE", idtmed[fPipeMaterial], ptube, 3);
2196bc42 422
cd9c4f3a 423// 2.5 mm thick SS tube for hanging pump
614dff1c 424/*
425 ptube[0] = Rin;
7bd7faf8 426 ptube[1] = 3.15;
cd9c4f3a 427 ptube[2] = hlenQb26;
7bd7faf8 428
cd9c4f3a 429 gMC->Gsvolu("QB26","TUBE", idtmed[kInox], ptube, 3);
614dff1c 430*/
7bd7faf8 431//
432// Bellows
fe4da5cc 433//
22811e34 434//
7bd7faf8 435// Mother Volume
614dff1c 436 Float_t pconQBE0[33];
437 pconQBE0[ 0]= 0;
438 pconQBE0[ 1]= 360;
439 pconQBE0[ 2]= 10;
440// 1
441 pconQBE0[ 3]= -dzb;
442 pconQBE0[ 4]= RinSt;
443 pconQBE0[ 5]= RoutSt;
444// 2
445 pconQBE0[ 6]= -dzb+2.;
446 pconQBE0[ 7]= RinSt;
447 pconQBE0[ 8]= RoutSt;
448// 3
449 pconQBE0[ 9]= -dzb+2.;
450 pconQBE0[10]= RinSt;
451 pconQBE0[11]= 4.00;
452// 4
453 pconQBE0[12]= -dzb+2.+2.*dzub;
454 pconQBE0[13]= RinSt;
455 pconQBE0[14]= 4.00;
456// 5
457 pconQBE0[15]= -dzb+2.+2.*dzub;
458 pconQBE0[16]= RinSt;
459 pconQBE0[17]= RoutSt;
460// 6
461 pconQBE0[18]= -dzb+2.+2.*dzub+2.*dzbb;
462 pconQBE0[19]= RinSt;
463 pconQBE0[20]= RoutSt;
464// 7
465 pconQBE0[21]= -dzb+2.+2.*dzub+2.*dzbb;
466 pconQBE0[22]= RinSt;
467 pconQBE0[23]= 4.00;
468// 8
469 pconQBE0[24]= -dzb+2.+4.*dzub+2.*dzbb;
470 pconQBE0[25]= RinSt;
471 pconQBE0[26]= 4.00;
472// 9
473 pconQBE0[27]= -dzb+2.+4.*dzub+2.*dzbb;
474 pconQBE0[28]= RinSt;
475 pconQBE0[29]= RoutSt;
476// 10
477 pconQBE0[30]= +dzb;
478 pconQBE0[31]= RinSt;
479 pconQBE0[32]= RoutSt;
480 gMC->Gsvolu("QBE0", "PCON", idtmed[kAir], pconQBE0, 33);
481//
482// Undulated piece mother
483 ptube[0] = RinSt;
484 ptube[1] = 4.00;
485 ptube[2] = dzub;
7bd7faf8 486 gMC->Gsvolu("QBEM","TUBE", idtmed[kAir], ptube, 3);
614dff1c 487 dz = -dzb+2.+dzub;
488 gMC->Gspos("QBEM", 2 ,"QBE0", 0.0, 0.0, dz, 0 , "ONLY");
489 gMC->Gspos("QBEM", 1 ,"QBE0", 0.0, 0.0, -dz, idrotm[2012], "ONLY");
490//
491 Float_t pund[30];
492 Float_t uw = 0.02;
493 Float_t ur = 2.*dzub-12.*uw;
494 Float_t uz = ur/13.;
495 Float_t ut = uz+uw;
496
497 pund[ 0] = 0;
498 pund[ 1] = 360;
13a638e8 499 pund[ 2] = 8;
614dff1c 500
501 pund[ 3] = -ut;
502 pund[ 4] = RinSt;
503 pund[ 5] = RinSt+uw;
504
505 pund[ 6] = -ut+uz;
506 pund[ 7] = pund[4];
507 pund[ 8] = pund[5];
508
509 pund[ 9] = pund[6];
510 pund[10] = pund[4];
511 pund[11] = 4.0;
512
513 pund[12] = pund[9]+uw;
514 pund[13] = pund[10];
515 pund[14] = pund[11];
516
517 pund[15] = pund[12];
518 pund[16] = 4.0-uw;
519 pund[17] = pund[14];
520
521 pund[18] = pund[12]+uz;
522 pund[19] = pund[16];
523 pund[20] = pund[17];
524
525 pund[21] = pund[18];
526 pund[22] = RinSt;
527 pund[23] = pund[20];
528
529 pund[24] = pund[21]+uw;
530 pund[25] = pund[22];
531 pund[26] = pund[23];
614dff1c 532
13a638e8 533 gMC->Gsvolu("QBEU", "PCON", idtmed[kInox], pund, 27);
614dff1c 534
535 for (i = 0; i < 6; i++)
536 {
537 dz = -dzub+(1+2*i)*ut;
538 gMC->Gspos("QBEU", i+1 ,"QBEM", 0.0, 0.0, dz, 0 , "ONLY");
7bd7faf8 539 }
614dff1c 540 ptube[0] = RinSt;
541 ptube[1] = RinSt+uw;
542 ptube[2] = uz;
543 gMC->Gsvolu("QBEW","TUBE", idtmed[kInox], ptube, 3);
544 gMC->Gspos("QBEW", 1 ,"QBEM", 0.0, 0.0, dzub-uz, 0 , "ONLY");
7bd7faf8 545//
614dff1c 546// BeamPipe
547 gMC->Gsvolu("QBEP","TUBE", idtmed[kInox], ptube, 0);
548 ptube[0] = RinSt;
549 ptube[1] = RoutSt;
550 ptube[2] = 1.;
551 gMC->Gsposp("QBEP", 1 ,"QBE0", 0.0, 0.0, -dzb+1., 0 , "ONLY", ptube, 3);
552 gMC->Gsposp("QBEP", 2 ,"QBE0", 0.0, 0.0, dzb-1., 0 , "ONLY", ptube, 3);
553 ptube[2] = dzbb;
554 gMC->Gsposp("QBEP", 3 ,"QBE0", 0.0, 0.0, 0., 0 , "ONLY", ptube, 3);
555//
556// End undulated part
557//
558//
559// ----> End Bellow
560//
561// **** Placement of various sections on non-absorber side ****
7bd7faf8 562//
cd9c4f3a 563 //
614dff1c 564 // first the beryllium section
565 Float_t zpos = -(hlenQbbe2-hlenQbbe1)/2;
cd9c4f3a 566 gMC->Gspos("QBBE", 1, "QBPM", 0., 0., zpos, 0, "ONLY");
567
568 // next meta-metal transition QBT1 on on-absorber side
614dff1c 569// zpos = zpos + hlenQbbe + hlenQbt1;
570// gMC->Gspos("QBT1", 1, "QBPM", 0., 0., zpos, 0, "ONLY");
cd9c4f3a 571
572 // Aluminium OR Al-be alloy section
614dff1c 573 zpos = hlenQbbe1+hlenQbab;
cd9c4f3a 574 gMC->Gspos("QBAB", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
614dff1c 575 //
cd9c4f3a 576 // inox flange at the start of bellow
cd9c4f3a 577 zpos = zpos + hlenQbab + hlenQb29;
614dff1c 578 gMC->Gspos("QB29", 1, "QBPM", 0.0, 0.0, zpos, idrotm[2012], "ONLY");
579 //
cd9c4f3a 580 // bellow section
cd9c4f3a 581 zpos = zpos + hlenQb29 + hlenQbe0;
614dff1c 582 gMC->Gspos("QBE0", 2 ,"QBPM", 0.0, 0.0, zpos, 0, "ONLY");
583 //
cd9c4f3a 584 // inox flange at the end of bellow and start of thick inox for pump
cd9c4f3a 585 zpos = zpos + hlenQbe0 + hlenQb29;
614dff1c 586 gMC->Gspos("QB29", 2, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
587 //
cd9c4f3a 588 //last inox section till 800 cm
cd9c4f3a 589 zpos = zpos + hlenQb29 + hlenQb28;
590 gMC->Gspos("QB28", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
614dff1c 591
cd9c4f3a 592//******** end of placement on no-absorber side *********
593
594 //
595 // **** Absorber side *****
596 //
597 //
614dff1c 598/*
cd9c4f3a 599 // metal-metal transition : Be-Alu on absorber side
600 // Mother Volume
601 ptube[0] = 2.900;
602 ptube[1] = 4.200;
603 ptube[2] = 2.750;
604 gMC->Gsvolu("QBT2","TUBE", idtmed[kAir], ptube, 3);
605 // z = 43.3 - 48.8
606 gMC->Gspos("QBT2", 1, "QBPM", 0., 0., -hlenQbbe-ptube[2], idrotm[2012], "ONLY");
607
608 ptube[0] = 2.900;
609 ptube[1] = 3.150;
610 ptube[2] = 0.375;
611 //
612 // Be-part
613 gMC->Gsvolu("QB02","TUBE", idtmed[kAlu], ptube, 3);
614
615 ptube[1] = 3.000;
616 gMC->Gsvolu("QBA2","TUBE", idtmed[kBe], ptube, 3);
617
618 gMC->Gspos("QBA2", 1, "QB02", 0., 0., 0, 0, "ONLY");
619// z = -2.75 -> -2.00
620 gMC->Gspos("QB02", 1, "QBT2", 0., 0.,-2.75+ptube[2], 0, "ONLY");
621
622 // Alu part
623 ptube[0] = 2.900;
624 ptube[1] = 3.150;
625 ptube[2] = 2.375;
626// z = -2.00 -> 2.75
627 gMC->Gsvolu("QB04","TUBE", idtmed[kAlu], ptube, 3);
628 gMC->Gspos("QB04", 1, "QBT2", 0., 0.,-2.+ptube[2], 0, "ONLY");
629
630
631 ptube[0] = 3.15;
632 ptube[1] = 3.50;
633 ptube[2] = 0.10;
634// z = 2.55 -> 2.75
635 gMC->Gsvolu("QB06","TUBE", idtmed[kAlu], ptube, 3);
636 gMC->Gspos("QB06", 1, "QBT2", 0., 0., 2.55+ptube[2], 0, "ONLY");
637
638
639 // Fixation
640 ptube[0] = 0.0;
641 ptube[1] = 0.1;
642 ptube[2] = 0.5;
643
644 gMC->Gsvolu("QBA8","TUBE", idtmed[kInox], ptube, 3);
645 gMC->Gspos("QBA8", 1 ,"QBT2", 0.000, 3.650, -1.25, idrotm[2002], "ONLY");
646 gMC->Gspos("QBA8", 2 ,"QBT2", 3.161, -1.825, -1.25, idrotm[2001], "ONLY");
647 gMC->Gspos("QBA8", 3 ,"QBT2", -3.161, -1.825, -1.25, idrotm[2003], "ONLY");
648
649 // Carbon ring
650 ptube[0] = 3.15;
651 ptube[1] = 4.10;
652 ptube[2] = 0.55;
653
654 gMC->Gsvolu("QB77","TUBE", idtmed[kC], ptube, 3);
655
656 ptube[0] = 3.15;
657 ptube[1] = 3.50;
658 ptube[2] = 0.10;
659 gMC->Gsvolu("QBB7","TUBE", idtmed[kInox], ptube, 3);
660 gMC->Gspos("QBB7", 1, "QB77", 0.0, 0.0, 0.55-0.2, 0, "ONLY");
661 gMC->Gspos("QB77", 1, "QBT2", 0.0, 0.0, 2., 0, "ONLY");
614dff1c 662 */
663//
664// Beam pipes between elements
665//
cd9c4f3a 666
614dff1c 667 gMC->Gsvolu("QB24","TUBE", idtmed[kInox], ptube, 0);
668 ptube[0] = RinSt;
669 ptube[1] = RoutSt;
670 ptube[2] = hlenQb24[0];
671 dz = hlenQbbe2 + ptube[2];
672 gMC->Gsposp("QB24", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY", ptube, 3);
673//
674// Bellow on absorber side
675 dz = dz+hlenQb24[0] + dzb;
676 gMC->Gspos("QBE0", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY");
677//
678 ptube[2] = hlenQb24[1];
679 dz = dz + dzb + ptube[2];
680 gMC->Gsposp("QB24", 2 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY", ptube, 3);
681 dz = dz + ptube[2];
7bd7faf8 682
7bd7faf8 683//
7bd7faf8 684// Flange
685//
686// Mother Volume
614dff1c 687 ptube[0] = RinSt;
7bd7faf8 688 ptube[1] = 4.300;
614dff1c 689 ptube[2] = 1.4;
7bd7faf8 690
614dff1c 691 gMC->Gsvolu("QFA0","TUBE", idtmed[kInox], ptube, 3);
692 dz = dz + ptube[2];
693 gMC->Gspos("QFA0", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY");
694 dz = dz + ptube[2];
7bd7faf8 695//
614dff1c 696//
697 ptube[0] = RinSt;
698 ptube[1] = RoutSt;
699 ptube[2] = hlenQb24[2];
700 dz = dz + ptube[2];
701 gMC->Gsposp("QB24", 3 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY", ptube, 3);
cd9c4f3a 702
703
fe4da5cc 704// --- Place the PIPE ghost volume (QBPM) in its mother volume (ALIC)
cd9c4f3a 705// by rotating it to 180 deg. and make it invisible
fe4da5cc 706//
7bd7faf8 707 gMC->Gspos("QBPM",1,"ALIC",0,0,0,idrotm[2013], "ONLY");
708
cd9c4f3a 709
7bd7faf8 710//
cd9c4f3a 711// ******** Ion Pump volume description starts here ******
7bd7faf8 712//
7bd7faf8 713 //
714 // Getters ->
715 pbox[0] = 6.50;
716 pbox[1] = 6.75;
717 pbox[2] = 15.60;
718 gMC->Gsvolu("QI32","BOX", idtmed[kInox], pbox, 3);
719
720 pbox[0] = 5.90;
721 pbox[1] = 6.15;
722 pbox[2] = 15.00;
723 gMC->Gsvolu("QI42","BOX", idtmed[kGetter], pbox, 3);
724 gMC->Gspos("QI42", 1, "QI32", 0.0, 0.0, 0.0, 0, "ONLY");
725// <-
726
727 ptube[0] = 0.0;
728 ptube[1] = 19.0;
729 ptube[2] = 2.5;
730 gMC->Gsvolu("QI33","TUBE", idtmed[kInox], ptube, 3);
731
732
733 ptube[0] = 0.0;
734 ptube[1] = 15.0;
735 ptube[2] = 2.5;
14b75006 736 gMC->Gsvolu("QI43","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 737 gMC->Gspos("QI43", 1, "QI33", 0.0, 0.0, 0.0, 0, "ONLY");
738//
739// Connecting tube ->
740 ptube[0] = 0.0;
741 ptube[1] = 5.4;
cd9c4f3a 742 ptube[2] = 14.6;
7bd7faf8 743 gMC->Gsvolu("QI34","TUBE", idtmed[kInox], ptube, 3);
744
745 ptube[0] = 0.0;
746 ptube[1] = 4.8;
cd9c4f3a 747 ptube[2] = 14.6;
14b75006 748 gMC->Gsvolu("QI44","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 749 gMC->Gspos("QI44", 1, "QI34", 0.0, 0.0, 0.0, 0, "ONLY");
750// <-
751
752 //
753 // Flange ->
cd9c4f3a 754 ptube[0] = 5.41;
7bd7faf8 755 ptube[1] = 7.30;
756 ptube[2] = 2.15;
757 gMC->Gsvolu("QI35","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 758// <-
cd9c4f3a 759 gMC->Gspos("QI32", 1, "QBPM", 0.0, -44.25, zPump, 0, "ONLY");
760 gMC->Gspos("QI33", 1, "QBPM", 0.0, -35.00, zPump,idrotm[2002], "ONLY");
761 gMC->Gspos("QI34", 1, "QBPM", 0.0, -17.90, zPump,idrotm[2002], "ONLY");
762 gMC->Gspos("QI35", 1, "QBPM", 0.0, -24.35, zPump,idrotm[2002], "ONLY");
fe4da5cc 763
22811e34 764 gMC->Gsatt("QBPM", "SEEN", 1);
765 gMC->Gsatt("QBEM", "SEEN", 1);
fe4da5cc 766}
767
cd9c4f3a 768
fe4da5cc 769
770//___________________________________________
771void AliPIPEv0::CreateMaterials()
772{
7bd7faf8 773 //
13391c3e 774 // Define materials for beam pipe
7bd7faf8 775 //
13391c3e 776
9e1a0ddb 777 if(fDebug) printf("%s: Create PIPEv0 materials \n",ClassName());
7bd7faf8 778 Int_t isxfld = gAlice->Field()->Integ();
779 Float_t sxmgmx = gAlice->Field()->Max();
2196bc42 780 // Steel (Inox)
7bd7faf8 781 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
782 Float_t zsteel[4] = { 26.,24.,28.,14. };
783 Float_t wsteel[4] = { .715,.18,.1,.005 };
2196bc42 784 // AlBe - alloy
785 Float_t aAlBe[2] = { 26.98, 9.01};
786 Float_t zAlBe[2] = { 13.00, 4.00};
787 Float_t wAlBe[2] = { 0.4, 0.6};
788
7bd7faf8 789 //
790 // Berillium
791 AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7);
792 //
793 // Carbon
794 AliMaterial(6, "CARBON$ ", 12.01, 6., 2.265, 18.8, 49.9);
795 //
796 // Aluminum
797 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
798 //
799 // Air
800 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
801 //
802 // Vacuum
803 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
804 //
805 // stainless Steel
806 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
807 //
808 // reduced density steel to approximate pump getter material
809 AliMixture(20, "GETTER$", asteel, zsteel, 1.00, 4, wsteel);
2196bc42 810 // Al-Be alloy
811 //
812 AliMixture(21, "AlBe$", aAlBe, zAlBe, 2.07, 2, wAlBe);
7bd7faf8 813 //
814 // ****************
815 // Defines tracking media parameters.
816 //
817 Float_t epsil = .001; // Tracking precision,
818 Float_t stemax = -0.01; // Maximum displacement for multiple scat
819 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
820 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
821 Float_t stmin = -.8;
822 // ***************
823 //
824 // Beryllium
825
826 AliMedium(5, "BE", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
827
828 // Carbon
829 AliMedium(6, "C", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
830 //
831 // Aluminum
832 AliMedium(9, "ALU", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
833 //
834 // Air
835 AliMedium(15, "AIR", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
836 //
837 // Vacuum
838 AliMedium(16, "VACUUM", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
839 //
840 // Steel
841 AliMedium(19, "INOX", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
842 //
843 // Getter
844 AliMedium(20, "GETTER", 20, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
2196bc42 845 //
846 // AlBe - Aloy
847 AliMedium(21, "AlBe" , 21, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
848
fe4da5cc 849}
850
851
fe4da5cc 852
853
854
855
856
857
858
859