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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$Log$
22811e34 18Revision 1.16 2001/05/16 14:57:22 alibrary
19New files for folders and Stack
20
9e1a0ddb 21Revision 1.15 2001/05/02 11:50:18 morsch
22New layout of the non-absorber side provided by Y. Viyogi. Not the final design
23but the prsent most realistic.
24
cd9c4f3a 25Revision 1.14 2001/01/20 16:56:33 morsch
26Put air in connecting tubes and flanges of vacuum pump.
27
14b75006 28Revision 1.13 2001/01/20 16:35:27 morsch
29Increase mother volume for bellows.
30
1416b7f3 31Revision 1.12 2000/12/21 16:41:06 morsch
32Coding convention clean-up (RS3)
33
13391c3e 34Revision 1.11 2000/11/28 16:06:57 morsch
35Undulated beam-pipe replaced by Al-Be (40,60) pipe 1.5 mm thick.
36
2196bc42 37Revision 1.10 2000/11/24 13:00:37 morsch
38- Geometry and materials imported from euclid output
39- include comments
40- better struturing of volume tree
41- improved version of flange close to front absorber
42- more realistic pump materials
43- undulated beam pipe imported from v3.
44
7bd7faf8 45Revision 1.9 2000/10/02 21:28:15 fca
46Removal of useless dependecies via forward declarations
47
94de3818 48Revision 1.8 2000/06/11 12:37:01 morsch
49Coding rule violations corrected
50
b43eb0dc 51Revision 1.7 2000/02/23 16:25:24 fca
52AliVMC and AliGeant3 classes introduced
53ReadEuclid moved from AliRun to AliModule
54
b13db077 55Revision 1.6 1999/09/29 09:24:30 fca
56Introduction of the Copyright and cvs Log
57
4c039060 58*/
59
fe4da5cc 60////////////////////////////////////////////////
61// Beam pipe class /
62////////////////////////////////////////////////
63
fe4da5cc 64#include "AliPIPEv0.h"
65#include "AliRun.h"
7bd7faf8 66#include "AliConst.h"
67#include "AliMagF.h"
94de3818 68#include "AliMC.h"
fe4da5cc 69#include "TSystem.h"
22811e34 70
71#include <iostream.h>
fe4da5cc 72
73ClassImp(AliPIPEv0)
74
75//_____________________________________________________________________________
b8032157 76AliPIPEv0::AliPIPEv0()
fe4da5cc 77{
b43eb0dc 78// Constructor
fe4da5cc 79}
80
81//_____________________________________________________________________________
82AliPIPEv0::AliPIPEv0(const char *name, const char *title)
83 : AliPIPE(name,title)
84{
b43eb0dc 85// Constructor
fe4da5cc 86}
87
88
89//___________________________________________
90void AliPIPEv0::CreateGeometry()
91{
fe4da5cc 92//Begin_Html
93/*
1439f98e 94<img src="picts/pipe.gif">
fe4da5cc 95*/
96//End_Html
97
98
99//Begin_Html
100/*
1439f98e 101<img src="picts/tree_pipe.gif">
fe4da5cc 102*/
103//End_Html
104
9e1a0ddb 105 if(fDebug) printf("%s: Create PIPEv0 geometry \n",ClassName());
fe4da5cc 106
fe4da5cc 107
7bd7faf8 108 Int_t *idtmed = fIdtmed->GetArray();
22811e34 109 Float_t ppcon[84], ptube[3], pbox[3];
7bd7faf8 110 Int_t i=0;
111
2196bc42 112 enum {kC=6, kAlu=9, kInox=19, kGetter=20, kBe=5, kVac=16, kAir=15, kAlBe=21};
7bd7faf8 113
114 Int_t idrotm[2099];
115 AliMatrix(idrotm[2001],90.,240., 0., 0., 90.,150.);
116 AliMatrix(idrotm[2002],90., 0., 0., 0., 90.,270.);
117 AliMatrix(idrotm[2003],90.,120., 0., 0., 90., 30.);
118 AliMatrix(idrotm[2004],90.,315., 90., 45., 0., 0.);
119 AliMatrix(idrotm[2005],90.,270., 90., 0., 0., 0.);
120 AliMatrix(idrotm[2006],90.,225., 90.,315., 0., 0.);
121 AliMatrix(idrotm[2007],90.,180., 90.,270., 0., 0.);
122 AliMatrix(idrotm[2008],90.,135., 90.,225., 0., 0.);
123 AliMatrix(idrotm[2009],90., 90., 90.,180., 0., 0.);
124 AliMatrix(idrotm[2010],90., 45., 90.,135., 0., 0.);
125 idrotm[2011] = 0;
126 AliMatrix(idrotm[2012],90.,180., 90., 90.,180., 0.);
127 AliMatrix(idrotm[2013],90., 0., 90., 90.,180., 0.);
128
22811e34 129// distance between bellows
130 const Float_t dzbb = 8.0;
131// size of bellow
132 const Float_t dzb = 11.4;
133
7bd7faf8 134
fe4da5cc 135//
136// The peam pipe up to the Front Absorber
fe4da5cc 137//
7bd7faf8 138// Mother Volume QBPM
cd9c4f3a 139 const Float_t dbe1 = 15.;
140 const Float_t dbe2 = 15.;
7bd7faf8 141 ppcon[0] = 0;
142 ppcon[1] = 360;
22811e34 143 ppcon[2] = 25;
7bd7faf8 144// 1:
145 ppcon[3] = - 90;
146 ppcon[4] = 0;
147 ppcon[5] = 5.8;
148// 2
22811e34 149 ppcon[6] = - 81.6;
7bd7faf8 150 ppcon[7] = 0.;
151 ppcon[8] = 5.8;
152// 3
22811e34 153 ppcon[9] = - 81.6;
7bd7faf8 154 ppcon[10] = 0.;
155 ppcon[11] = 4.22;
22811e34 156// 4
157 ppcon[12] = - 81.6 + dzb;
7bd7faf8 158 ppcon[13] = 0;
159 ppcon[14] = 4.22;
22811e34 160// 5
161 ppcon[15] = - 81.6 + dzb;
7bd7faf8 162 ppcon[16] = 0;
163 ppcon[17] = 3.2;
22811e34 164// 6
165 ppcon[18] = - 81.6 + dzb + dzbb;
7bd7faf8 166 ppcon[19] = 0;
167 ppcon[20] = 3.2;
168// 7
22811e34 169 ppcon[21] = - 81.6 + dzb + dzbb;
7bd7faf8 170 ppcon[22] = 0;
22811e34 171 ppcon[23] = 4.22;
7bd7faf8 172// 8
22811e34 173 ppcon[24] = - 28.00-dbe2;
7bd7faf8 174 ppcon[25] = 0;
175 ppcon[26] = 4.22;
176// 9
22811e34 177 ppcon[27] = - 28.00-dbe2;
7bd7faf8 178 ppcon[28] = 0;
22811e34 179 ppcon[29] = 3.2;
180// 10
181 ppcon[30] = 0;
7bd7faf8 182 ppcon[31] = 0;
22811e34 183 ppcon[32] = 3.2;
184// 11
185 ppcon[33] = 28.+dbe1;
7bd7faf8 186 ppcon[34] = 0;
22811e34 187 ppcon[35] = 3.2;
188// 12
189 ppcon[36] = 28.+dbe1;
cd9c4f3a 190 ppcon[37] = 0;
22811e34 191 ppcon[38] = 4.22;
192// 13
193 ppcon[39] = 28.+dbe1+5.5;
cd9c4f3a 194 ppcon[40] = 0;
22811e34 195 ppcon[41] = 4.22;
196// 14
197 ppcon[42] = 28.+dbe1+5.5;
cd9c4f3a 198 ppcon[43] = 0;
22811e34 199 ppcon[44] = 3.2;
200// 15
201 ppcon[45] = 250.;
cd9c4f3a 202 ppcon[46] = 0;
22811e34 203 ppcon[47] = 3.2;
204// 16
205 ppcon[48] = 250;
206 ppcon[49] = 0;
207 ppcon[50] = 5;
208// 17
209 ppcon[51] = 250.+4.4*2;
210 ppcon[52] = 0.;
211 ppcon[53] = 5.;
212// 18
213 ppcon[54] = 250.+4.4*2;
214 ppcon[55] = 0.;
215 ppcon[56] = 3.2;
216// 19
217 ppcon[57] = 350.4;
218 ppcon[58] = 0;
219 ppcon[59] = 3.2;
220// 20
221 ppcon[60] = 350.4;
222 ppcon[61] = 0;
223 ppcon[62] = 5.;
224// 21
225 ppcon[63] = 380.;
226 ppcon[64] = 0;
227 ppcon[65] = 5.;
228// 22
229 ppcon[66] = 380.;
230 ppcon[67] = 0.;
231 ppcon[68] = 56.;
232// 23
233 ppcon[69] = 420.;
234 ppcon[70] = 0.;
235 ppcon[71] = 56.;
236// 24
237 ppcon[72] = 420.;
238 ppcon[73] = 0.;
239 ppcon[74] = 5.;
240// 25
241 ppcon[75] = 800.;
242 ppcon[76] = 0.;
243 ppcon[77] = 5.;
244
245 gMC->Gsvolu("QBPM", "PCON", idtmed[kAir], ppcon, 78);
7bd7faf8 246
247//
248// The Vacuum
249 ptube[0] = 0.0;
250 ptube[1] = 2.9;
251 ptube[2] = 445.0;
252
253 gMC->Gsvolu("QBVA","TUBE", idtmed[kVac], ptube, 3);
cd9c4f3a 254 gMC->Gspos ("QBVA", 1, "QBPM", 0., 0., 355., 0, "ONLY");
7bd7faf8 255//
cd9c4f3a 256// volume definitions of various sections
257//
cd9c4f3a 258
259 //half-lengths of various beam pipe sections
22811e34 260 Float_t hlenQbbe = 43.3;
261 Float_t hlenQbt1 = 5.5/2.;
262 Float_t hlenQbab = (286.6+15.)/2.;
263 Float_t hlenQb10 = (286.6+15.)/2.;
264 Float_t hlenQb29 = 4.4/2.;
265 Float_t hlenQbe0 = (2.* dzb + dzbb)/2.;
266 Float_t hlenQb26 = 20./2.;
267 Float_t hlenQb28 = (400.6-15.)/2.;
cd9c4f3a 268
269// Be Pipe in central Alice : length 43.3 * 2
7bd7faf8 270 ptube[0] = 2.90;
271 ptube[1] = 3.00;
cd9c4f3a 272 ptube[2] = hlenQbbe;
7bd7faf8 273
274 gMC->Gsvolu("QBBE","TUBE", idtmed[kBe], ptube, 3);
7bd7faf8 275
276//
cd9c4f3a 277// Metal-Metal Transitions : non-absorber side
7bd7faf8 278//
cd9c4f3a 279// Be-Al (or Be to Be-Al alloy)
7bd7faf8 280// Mother Volume
281 ptube[0] = 2.900;
282 ptube[1] = 4.200;
cd9c4f3a 283 ptube[2] = hlenQbt1;
7bd7faf8 284 gMC->Gsvolu("QBT1","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 285
286 ptube[0] = 2.900;
287 ptube[1] = 3.150;
288 ptube[2] = 0.375;
289 //
290 // Be-part
cd9c4f3a 291 gMC->Gsvolu("QB01","TUBE", idtmed[kAlu], ptube, 3);
7bd7faf8 292
293 ptube[1] = 3.000;
294 gMC->Gsvolu("QBA1","TUBE", idtmed[kBe], ptube, 3);
295
296 gMC->Gspos("QBA1", 1, "QB01", 0., 0., 0, 0, "ONLY");
297 gMC->Gspos("QB01", 1, "QBT1", 0., 0.,-2.75+ptube[2], 0, "ONLY");
298
cd9c4f3a 299 // Al-part
7bd7faf8 300 //
301 ptube[0] = 2.900;
302 ptube[1] = 3.150;
303 ptube[2] = 2.375;
304
cd9c4f3a 305 gMC->Gsvolu("QB03","TUBE", idtmed[kAlu], ptube, 3);
7bd7faf8 306 gMC->Gspos("QB03", 1, "QBT1", 0., 0.,-2.+ptube[2], 0, "ONLY");
307
308
309 ptube[0] = 3.15;
310 ptube[1] = 3.50;
311 ptube[2] = 0.10;
312
cd9c4f3a 313 gMC->Gsvolu("QB05","TUBE", idtmed[kAlu], ptube, 3);
7bd7faf8 314 gMC->Gspos("QB05", 1, "QBT1", 0., 0., 2.55+ptube[2], 0, "ONLY");
315
316
317 // Fixations
318 ptube[0] = 0.0;
319 ptube[1] = 0.1;
320 ptube[2] = 0.5;
321
322 gMC->Gsvolu("QB08","TUBE", idtmed[kInox], ptube, 3);
323 gMC->Gspos("QB08", 1 ,"QBT1", 0.000, 3.650, -1.25, idrotm[2002], "ONLY");
324 gMC->Gspos("QB08", 2 ,"QBT1", 3.161, -1.825, -1.25, idrotm[2001], "ONLY");
325 gMC->Gspos("QB08", 3 ,"QBT1", -3.161, -1.825, -1.25, idrotm[2003], "ONLY");
326
327 // Carbon ring
328 ptube[0] = 3.15;
329 ptube[1] = 4.10;
330 ptube[2] = 0.55;
331
332 gMC->Gsvolu("QB07","TUBE", idtmed[kC], ptube, 3);
333
334 ptube[0] = 3.15;
335 ptube[1] = 3.50;
336 ptube[2] = 0.10;
337 gMC->Gsvolu("QBA7","TUBE", idtmed[kInox], ptube, 3);
338 gMC->Gspos("QBA7", 1, "QB07", 0.0, 0.0, 0.55-0.2, 0, "ONLY");
339 gMC->Gspos("QB07", 1, "QBT1", 0.0, 0.0, 2., 0, "ONLY");
340
7bd7faf8 341
342//
343// 1st section Alu non-absorber side
344 ptube[0] = 2.9;
345 ptube[1] = 3.0;
cd9c4f3a 346 ptube[2] = hlenQb10;
7bd7faf8 347
348 gMC->Gsvolu("QB10","TUBE", idtmed[kAlu], ptube, 3);
7bd7faf8 349//
350// Support rollers: non absorber side
351//
352// Mother volume
22811e34 353
7bd7faf8 354 ptube[0] = 3.2;
355 ptube[1] = 4.8;
356 ptube[2] = 3.0;
357 gMC->Gsvolu("QBRM","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 358
359 ptube[0] = 0.0;
360 ptube[1] = 0.7;
361 ptube[2] = 3.0;
362
363 gMC->Gsvolu("QB30","TUBE", idtmed[kInox], ptube, 3);
364
365 for (i=0; i<8; i++) {
366 Float_t phi = 45.+i*45.*kDegrad;
367 Float_t xpos = 4.*TMath::Sin(phi);
368 Float_t ypos = 4.*TMath::Cos(phi);
369 gMC->Gspos("QB30", i+1, "QBRM", xpos, ypos, 0, idrotm[2004+i], "ONLY");
370 }
371
372//
373// Flanges: non absorber side
374 ptube[0] = 3.0;
375 ptube[1] = 4.9;
cd9c4f3a 376 ptube[2] = hlenQb29;
7bd7faf8 377
378 gMC->Gsvolu("QB29","TUBE", idtmed[kInox], ptube, 3);
22811e34 379
7bd7faf8 380//
cd9c4f3a 381// Inox beam pipe: final section on non-absorber side
7bd7faf8 382
383 ptube[0] = 2.90;
384 ptube[1] = 2.98;
cd9c4f3a 385 ptube[2] = hlenQb28;
7bd7faf8 386
387 gMC->Gsvolu("QB28","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 388
389//
390// Undulated beam pipe
391//
2196bc42 392/*
7bd7faf8 393 Float_t pitch=0.25;
394 Float_t thick=0.015;
395 Float_t zundul=171;
396 Float_t rundul=3.0;
397 char cn48[][5]={"QN21","QN22","QN23","QN24","QN25","QN26","QN27","QN28"};
398
399 Undulation("QUND",pitch,thick,zundul,rundul,cn48);
400 gMC->Gspos("QUND", 1, "QBPM", 0., 0., 335.+zundul, 0, "ONLY");
2196bc42 401*/
402
403// Al-Be (40-60 wgt%, rho=2.7 g/cm**3) beam pipe
404//
405 ptube[0] = 2.90;
406 ptube[1] = 3.05;
cd9c4f3a 407 ptube[2] = hlenQbab;
2196bc42 408
409 gMC->Gsvolu("QBAB","TUBE", idtmed[kAlBe], ptube, 3);
2196bc42 410
7bd7faf8 411
412//
cd9c4f3a 413// last piece : inox pipe from pump till end
7bd7faf8 414//
cd9c4f3a 415 //ptube[0] = 2.90;
416 //ptube[1] = 2.98;
417 //ptube[2] = 61.55;
7bd7faf8 418
cd9c4f3a 419 //gMC->Gsvolu("QB48","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 420
cd9c4f3a 421/*
7bd7faf8 422 ptube[0] = 2.90;
423 ptube[1] = 2.98;
424 ptube[2] = 1.0;
425
426 gMC->Gsvolu("QB27","TUBE", idtmed[kInox], ptube, 3);
427 gMC->Gspos("QB27", 1, "QBPM", 0.0, 0.0, 208.1, 0, "ONLY");
cd9c4f3a 428*/
7bd7faf8 429//
cd9c4f3a 430// Aluminium collar for support rollers
7bd7faf8 431
cd9c4f3a 432 gMC->Gsvolu("QB25","TUBE", idtmed[kAlu], ptube, 0);
7bd7faf8 433
cd9c4f3a 434
435// 2.5 mm thick SS tube for hanging pump
436 ptube[0] = 2.90;
7bd7faf8 437 ptube[1] = 3.15;
cd9c4f3a 438 ptube[2] = hlenQb26;
7bd7faf8 439
cd9c4f3a 440 gMC->Gsvolu("QB26","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 441
442//
443// Bellows
fe4da5cc 444//
22811e34 445//
7bd7faf8 446// Mother Volume
22811e34 447
448 Float_t pconQBE0[21];
449 pconQBE0[0]= 0;
450 pconQBE0[1]= 360;
451 pconQBE0[2]= 6;
452
453 pconQBE0[3]= -(2.*dzb+dzbb)/2.;
454 pconQBE0[4]= 0;
455 pconQBE0[5]= 4.22;
456
457 pconQBE0[6]= -(2.*dzb+dzbb)/2.+dzb;
458 pconQBE0[7]= 0;
459 pconQBE0[8]= 4.22;
460
461 pconQBE0[9]= -(2.*dzb+dzbb)/2.+dzb;
462 pconQBE0[10]= 0;
463 pconQBE0[11]= 3.2;
464
465 pconQBE0[12]= -(2.*dzb+dzbb)/2.+dzb+dzbb;
466 pconQBE0[13]= 0;
467 pconQBE0[14]= 3.2;
468
469 pconQBE0[15]= -(2.*dzb+dzbb)/2.+dzb+dzbb;
470 pconQBE0[16]= 0;
471 pconQBE0[17]= 4.22;
472
473 pconQBE0[18]= -(2.*dzb+dzbb)/2.+dzb+dzbb+dzb;
474 pconQBE0[19]= 0;
475 pconQBE0[20]= 4.22;
476
477 gMC->Gsvolu("QBE0", "PCON", idtmed[kAir], pconQBE0, 21);
478
7bd7faf8 479 ptube[0] = 2.90;
480 ptube[1] = 3.75;
cd9c4f3a 481 ptube[2] = dzb/2.;
7bd7faf8 482
483 gMC->Gsvolu("QBEM","TUBE", idtmed[kAir], ptube, 3);
cd9c4f3a 484 Float_t dz = (dzb+dzbb)/2.;
485 gMC->Gspos("QBEM", 2 ,"QBE0", 0.0, 0.0, -dz, 0 , "ONLY");
486 gMC->Gspos("QBEM", 1 ,"QBE0", 0.0, 0.0, dz, idrotm[2012], "ONLY");
7bd7faf8 487
488 ptube[0] = 2.90;
489 ptube[1] = 3.25;
490 ptube[2] = 3.70;
491
492 gMC->Gsvolu("QB19","TUBE", idtmed[kVac], ptube, 3);
493 gMC->Gspos("QB19", 1 ,"QBEM", 0.0, 0.0, 0.5, 0 , "ONLY");
494
495 ptube[0] = 3.25;
496 ptube[1] = 3.74;
497 ptube[2] = 0.095;
498
499 gMC->Gsvolu("QB18","TUBE", idtmed[kVac], ptube, 3);
500 for (i=0; i<15; i++) {
501 gMC->Gspos("QB18", i+1, "QBEM", 0.0, 0.0, 3.3-i*0.4, 0, "ONLY");
502 }
503
504 ptube[0] = 2.90;
505 ptube[1] = 3.00;
506 ptube[2] = 1.20;
507
508 gMC->Gsvolu("QB21","TUBE", idtmed[kVac], ptube, 3);
509 gMC->Gspos("QB21", 1 ,"QBEM", 0.0, 0.0, -4.5, 0 , "ONLY");
510
511 ptube[0] = 3.250;
512 ptube[1] = 3.750;
513 ptube[2] = 0.005;
514
515 gMC->Gsvolu("QB15","TUBE", idtmed[kInox], ptube, 3);
516 for (i=0; i<30; i++) {
517 gMC->Gspos("QB15", i+1, "QBEM", 0.0, 0.0, 3.4-i*0.2, 0, "ONLY");
518 }
519
520 ptube[0] = 3.740;
521 ptube[1] = 3.750;
522 ptube[2] = 0.095;
523
524 gMC->Gsvolu("QB16","TUBE", idtmed[kInox], ptube, 3);
525 for (i=0; i<15; i++) {
526 gMC->Gspos("QB16", i+1, "QBEM", 0.0, 0.0, 3.3-i*0.4, 0, "ONLY");
527 }
528
529 ptube[0] = 3.250;
530 ptube[1] = 3.260;
531 ptube[2] = 0.095;
532
533 gMC->Gsvolu("QB17","TUBE", idtmed[kInox], ptube, 3);
534 for (i=0; i<14; i++) {
535 gMC->Gspos("QB17", i+1, "QBEM", 0.0, 0.0, 3.1-i*0.4, 0, "ONLY");
536 }
537
538 ptube[0] = 3.250;
539 ptube[1] = 3.260;
540 ptube[2] = 0.3975;
541
542 gMC->Gsvolu("QB14","TUBE", idtmed[kInox], ptube, 3);
543 gMC->Gspos("QB14", 2 ,"QBEM", 0.0, 0.0, -2.8025, 0 , "ONLY");
544 gMC->Gspos("QB14", 1 ,"QBEM", 0.0, 0.0, 3.8025, 0 , "ONLY");
545
546 ptube[0] = 2.900;
547 ptube[1] = 3.260;
548 ptube[2] = 0.050;
549
550 gMC->Gsvolu("QB13","TUBE", idtmed[kInox], ptube, 3);
551 gMC->Gspos("QB13", 2 ,"QBEM", 0.0, 0.0, -3.25, 0 , "ONLY");
552 gMC->Gspos("QB13", 1 ,"QBEM", 0.0, 0.0, 4.25, 0 , "ONLY");
553
554 ptube[0] = 2.900;
555 ptube[1] = 3.000;
556 ptube[2] = 0.700;
557
558 gMC->Gsvolu("QB12","TUBE", idtmed[kInox], ptube, 3);
559 gMC->Gspos("QB12", 1 ,"QBEM", 0.0, 0.0, 5.0, 0, "ONLY");
560
561
562//
563// pipe between Bellows
564 ptube[0] = 2.9;
565 ptube[1] = 3.0;
cd9c4f3a 566 ptube[2] = dzbb/2.;
7bd7faf8 567 gMC->Gsvolu("QB23","TUBE", idtmed[kInox], ptube, 3);
568 gMC->Gspos("QB23", 1 ,"QBE0", 0.0, 0.0, 0.0, 0, "ONLY");
569
570//
571// End Bellow
cd9c4f3a 572
573// **** placement of various sections on non-absorber side ****
574 //
575 // first the beryllium section : 43.3 cm long on both sides of IP
576 // zstart=0, zend=43.3, length=43.3 on one side
577 Float_t zpos=0;
578 gMC->Gspos("QBBE", 1, "QBPM", 0., 0., zpos, 0, "ONLY");
579
580 // next meta-metal transition QBT1 on on-absorber side
581 // zstart=43.3, zend=48.8, length=5.5
582 zpos = zpos + hlenQbbe + hlenQbt1;
583 gMC->Gspos("QBT1", 1, "QBPM", 0., 0., zpos, 0, "ONLY");
584
585 // Aluminium OR Al-be alloy section
586 //zpos=zpos + hlenQbt1 + hlenQb10;
587 //gMC->Gspos("QB10", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
588 // zstart= 48.8, zend=335.4, length=286.6
589 zpos = zpos + hlenQbt1 + hlenQbab;
590 gMC->Gspos("QBAB", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
591
592 // inox flange at the start of bellow
593 // zstart=335.4, zend=339.8, length=4.4
22811e34 594 cout<<" zpos 1 "<<zpos<<" hlenQbab "<<hlenQbab<<
595 " hlenQb29 "<< hlenQb29<<endl;
cd9c4f3a 596 zpos = zpos + hlenQbab + hlenQb29;
22811e34 597 cout<<" zstart 1 "<<zpos-hlenQb29<<" zend 2 "<<zpos+hlenQb29<<endl;
cd9c4f3a 598 gMC->Gspos("QB29", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
599
600 // bellow section
601 // zstart=339.8, zend=370.6, length=30.9
22811e34 602 // zpos = zpos + hlenQb29 + hlenQbe0;
cd9c4f3a 603 zpos = zpos + hlenQb29 + hlenQbe0;
22811e34 604 cout<<" zstart "<<zpos-hlenQbe0<<" zend "<<zpos-hlenQbe0<<endl;
605 gMC->Gspos("QBE0", 2 ,"QBPM", 0.0, 0.0, zpos, 0, "ONLY");
cd9c4f3a 606
607 // inox flange at the end of bellow and start of thick inox for pump
608 // zstart=370.6, zend=375.0, length=4.4
609 zpos = zpos + hlenQbe0 + hlenQb29;
22811e34 610 cout<<" zstart 1 "<<zpos-hlenQb29<<" zend 2 "<<zpos+hlenQb29<<endl;
611 gMC->Gspos("QB29", 2, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
cd9c4f3a 612
613 // 2.5mm thick inox section to hang the pump
614 // zstart=375.0, zend=395.0, length=20.0
615 zpos = zpos + hlenQb29 + hlenQb26;
22811e34 616 cout<<" zstart 1 "<<zpos-hlenQb29<<" zend 2 "<<zpos+hlenQb29<<endl;
617 gMC->Gspos("QB26", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
cd9c4f3a 618
619 //inox flange at the end of pump section to join to next pipe
620 // zstart=395.0, zend=399.4, length=4.4
621 zpos = zpos + hlenQb26 + hlenQb29;
622 gMC->Gspos("QB29", 3, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
623
624 //last inox section till 800 cm
625 // zstart=399.4, zend=800., length=400.6
626 zpos = zpos + hlenQb29 + hlenQb28;
627 gMC->Gspos("QB28", 1, "QBPM", 0.0, 0.0, zpos, 0, "ONLY");
628
629
630 // aluminium collars and support rollers at two places
631
632 ptube[0] = 3.0;
633 ptube[1] = 3.15;
634 ptube[2] = 2.75;
635
636 gMC->Gsposp("QB25", 1, "QBPM", 0., 0., 654.8, 0, "ONLY", ptube, 3);
637 gMC->Gspos("QBRM", 1, "QBPM", 0., 0., 654.8, 0, "ONLY");
638
639 ptube[0] = 3.05;
640 ptube[1] = 3.20;
641 gMC->Gsposp("QB25", 2, "QBPM", 0., 0., 254.8, 0, "ONLY", ptube, 3);
642 gMC->Gspos("QBRM", 2, "QBPM", 0., 0., 254.8, 0, "ONLY");
643
644
645
646//******** end of placement on no-absorber side *********
647
648 //
649 // **** Absorber side *****
650 //
651 //
652 // metal-metal transition : Be-Alu on absorber side
653 // Mother Volume
654 ptube[0] = 2.900;
655 ptube[1] = 4.200;
656 ptube[2] = 2.750;
657 gMC->Gsvolu("QBT2","TUBE", idtmed[kAir], ptube, 3);
658 // z = 43.3 - 48.8
659 gMC->Gspos("QBT2", 1, "QBPM", 0., 0., -hlenQbbe-ptube[2], idrotm[2012], "ONLY");
660
661 ptube[0] = 2.900;
662 ptube[1] = 3.150;
663 ptube[2] = 0.375;
664 //
665 // Be-part
666 gMC->Gsvolu("QB02","TUBE", idtmed[kAlu], ptube, 3);
667
668 ptube[1] = 3.000;
669 gMC->Gsvolu("QBA2","TUBE", idtmed[kBe], ptube, 3);
670
671 gMC->Gspos("QBA2", 1, "QB02", 0., 0., 0, 0, "ONLY");
672// z = -2.75 -> -2.00
673 gMC->Gspos("QB02", 1, "QBT2", 0., 0.,-2.75+ptube[2], 0, "ONLY");
674
675 // Alu part
676 ptube[0] = 2.900;
677 ptube[1] = 3.150;
678 ptube[2] = 2.375;
679// z = -2.00 -> 2.75
680 gMC->Gsvolu("QB04","TUBE", idtmed[kAlu], ptube, 3);
681 gMC->Gspos("QB04", 1, "QBT2", 0., 0.,-2.+ptube[2], 0, "ONLY");
682
683
684 ptube[0] = 3.15;
685 ptube[1] = 3.50;
686 ptube[2] = 0.10;
687// z = 2.55 -> 2.75
688 gMC->Gsvolu("QB06","TUBE", idtmed[kAlu], ptube, 3);
689 gMC->Gspos("QB06", 1, "QBT2", 0., 0., 2.55+ptube[2], 0, "ONLY");
690
691
692 // Fixation
693 ptube[0] = 0.0;
694 ptube[1] = 0.1;
695 ptube[2] = 0.5;
696
697 gMC->Gsvolu("QBA8","TUBE", idtmed[kInox], ptube, 3);
698 gMC->Gspos("QBA8", 1 ,"QBT2", 0.000, 3.650, -1.25, idrotm[2002], "ONLY");
699 gMC->Gspos("QBA8", 2 ,"QBT2", 3.161, -1.825, -1.25, idrotm[2001], "ONLY");
700 gMC->Gspos("QBA8", 3 ,"QBT2", -3.161, -1.825, -1.25, idrotm[2003], "ONLY");
701
702 // Carbon ring
703 ptube[0] = 3.15;
704 ptube[1] = 4.10;
705 ptube[2] = 0.55;
706
707 gMC->Gsvolu("QB77","TUBE", idtmed[kC], ptube, 3);
708
709 ptube[0] = 3.15;
710 ptube[1] = 3.50;
711 ptube[2] = 0.10;
712 gMC->Gsvolu("QBB7","TUBE", idtmed[kInox], ptube, 3);
713 gMC->Gspos("QBB7", 1, "QB77", 0.0, 0.0, 0.55-0.2, 0, "ONLY");
714 gMC->Gspos("QB77", 1, "QBT2", 0.0, 0.0, 2., 0, "ONLY");
715
716
7bd7faf8 717// beam pipe between metal-metal transition and bellows
718 ptube[0] = 2.9;
719 ptube[1] = 3.0;
cd9c4f3a 720 ptube[2] = (81.7-(2.*dzb+dzbb)-(hlenQbbe+5.5))/2.;
7bd7faf8 721
cd9c4f3a 722
7bd7faf8 723 gMC->Gsvolu("QB24","TUBE", idtmed[kInox], ptube, 3);
cd9c4f3a 724// z = 48.8 - 50.9
725 dz = (hlenQbbe+5.5)+ptube[2];
726 gMC->Gspos("QB24", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY");
7bd7faf8 727//
728// beam pipe between flange and bellows
729 ptube[0] = 2.90;
730 ptube[1] = 3.00;
731 ptube[2] = 0.45;
732
733 gMC->Gsvolu("QB22","TUBE", idtmed[kInox], ptube, 3);
734 gMC->Gspos("QB22", 1 ,"QBPM", 0.0, 0.0, -82.15, 0, "ONLY");
735
736//
737// Flange
738//
739// Mother Volume
740 ptube[0] = 2.900;
741 ptube[1] = 4.300;
742 ptube[2] = 1.400;
743
744 gMC->Gsvolu("QFA0","TUBE", idtmed[kAlu], ptube, 3);
745 gMC->Gspos("QFA0", 1 ,"QBPM", 0.0, 0.0, -84.0, 0, "ONLY");
746//
747// inner Inox piece
748 ptube[0] = 2.900;
749 ptube[1] = 3.500;
750 ptube[2] = 0.450;
751 gMC->Gsvolu("QFA1","TUBE", idtmed[kInox], ptube, 3);
752 gMC->Gspos("QFA1", 1 ,"QFA0", 0.0, 0.0, 0.225, 0, "ONLY");
753//
754// 8 x M5 Inox
755 ptube[0] = 0.000;
756 ptube[1] = 0.250;
757 ptube[2] = 1.400;
758 gMC->Gsvolu("QFA2","TUBE", idtmed[kInox], ptube, 3);
759 for (i=0; i<8; i++) {
760 Float_t phi = i*45.*kDegrad;
761 Float_t xpos = 3.9*TMath::Sin(phi);
762 Float_t ypos = 3.9*TMath::Cos(phi);
763 gMC->Gspos("QFA2", i+1, "QFA0", xpos, ypos, 0., 0, "ONLY");
764 }
765
766
767 ptube[0] = 2.900;
768 ptube[1] = 3.000;
769 ptube[2] = 2.300;
770
771 gMC->Gsvolu("QB32","TUBE", idtmed[kInox], ptube, 3);
772 gMC->Gspos("QB32", 1 ,"QBPM", 0.0, 0.0, -90.+2.3, 0, "ONLY");
773
cd9c4f3a 774 //bellow on absorber side
775 ptube[2] = (2.*dzb+dzbb)/2.;
776 dz = (81.7-ptube[2]);
777 gMC->Gspos("QBE0", 1 ,"QBPM", 0.0, 0.0, -dz, 0, "ONLY");
778
779
fe4da5cc 780// --- Place the PIPE ghost volume (QBPM) in its mother volume (ALIC)
cd9c4f3a 781// by rotating it to 180 deg. and make it invisible
fe4da5cc 782//
7bd7faf8 783
fe4da5cc 784
7bd7faf8 785 gMC->Gspos("QBPM",1,"ALIC",0,0,0,idrotm[2013], "ONLY");
786
cd9c4f3a 787
7bd7faf8 788//
cd9c4f3a 789// ******** Ion Pump volume description starts here ******
7bd7faf8 790//
7bd7faf8 791 //
792 // Getters ->
793 pbox[0] = 6.50;
794 pbox[1] = 6.75;
795 pbox[2] = 15.60;
796 gMC->Gsvolu("QI32","BOX", idtmed[kInox], pbox, 3);
797
798 pbox[0] = 5.90;
799 pbox[1] = 6.15;
800 pbox[2] = 15.00;
801 gMC->Gsvolu("QI42","BOX", idtmed[kGetter], pbox, 3);
802 gMC->Gspos("QI42", 1, "QI32", 0.0, 0.0, 0.0, 0, "ONLY");
803// <-
804
805 ptube[0] = 0.0;
806 ptube[1] = 19.0;
807 ptube[2] = 2.5;
808 gMC->Gsvolu("QI33","TUBE", idtmed[kInox], ptube, 3);
809
810
811 ptube[0] = 0.0;
812 ptube[1] = 15.0;
813 ptube[2] = 2.5;
14b75006 814 gMC->Gsvolu("QI43","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 815 gMC->Gspos("QI43", 1, "QI33", 0.0, 0.0, 0.0, 0, "ONLY");
816//
817// Connecting tube ->
818 ptube[0] = 0.0;
819 ptube[1] = 5.4;
cd9c4f3a 820 ptube[2] = 14.6;
7bd7faf8 821 gMC->Gsvolu("QI34","TUBE", idtmed[kInox], ptube, 3);
822
823 ptube[0] = 0.0;
824 ptube[1] = 4.8;
cd9c4f3a 825 ptube[2] = 14.6;
14b75006 826 gMC->Gsvolu("QI44","TUBE", idtmed[kAir], ptube, 3);
7bd7faf8 827 gMC->Gspos("QI44", 1, "QI34", 0.0, 0.0, 0.0, 0, "ONLY");
828// <-
829
830 //
831 // Flange ->
cd9c4f3a 832 ptube[0] = 5.41;
7bd7faf8 833 ptube[1] = 7.30;
834 ptube[2] = 2.15;
835 gMC->Gsvolu("QI35","TUBE", idtmed[kInox], ptube, 3);
7bd7faf8 836// <-
22811e34 837 Float_t zPump = 400.;
cd9c4f3a 838 gMC->Gspos("QI32", 1, "QBPM", 0.0, -44.25, zPump, 0, "ONLY");
839 gMC->Gspos("QI33", 1, "QBPM", 0.0, -35.00, zPump,idrotm[2002], "ONLY");
840 gMC->Gspos("QI34", 1, "QBPM", 0.0, -17.90, zPump,idrotm[2002], "ONLY");
841 gMC->Gspos("QI35", 1, "QBPM", 0.0, -24.35, zPump,idrotm[2002], "ONLY");
fe4da5cc 842
22811e34 843 gMC->Gsatt("QBPM", "SEEN", 1);
844 gMC->Gsatt("QBEM", "SEEN", 1);
fe4da5cc 845}
846
cd9c4f3a 847
fe4da5cc 848
849//___________________________________________
850void AliPIPEv0::CreateMaterials()
851{
7bd7faf8 852 //
13391c3e 853 // Define materials for beam pipe
7bd7faf8 854 //
13391c3e 855
9e1a0ddb 856 if(fDebug) printf("%s: Create PIPEv0 materials \n",ClassName());
7bd7faf8 857 Int_t isxfld = gAlice->Field()->Integ();
858 Float_t sxmgmx = gAlice->Field()->Max();
2196bc42 859 // Steel (Inox)
7bd7faf8 860 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
861 Float_t zsteel[4] = { 26.,24.,28.,14. };
862 Float_t wsteel[4] = { .715,.18,.1,.005 };
2196bc42 863 // AlBe - alloy
864 Float_t aAlBe[2] = { 26.98, 9.01};
865 Float_t zAlBe[2] = { 13.00, 4.00};
866 Float_t wAlBe[2] = { 0.4, 0.6};
867
7bd7faf8 868 //
869 // Berillium
870 AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7);
871 //
872 // Carbon
873 AliMaterial(6, "CARBON$ ", 12.01, 6., 2.265, 18.8, 49.9);
874 //
875 // Aluminum
876 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
877 //
878 // Air
879 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
880 //
881 // Vacuum
882 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
883 //
884 // stainless Steel
885 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
886 //
887 // reduced density steel to approximate pump getter material
888 AliMixture(20, "GETTER$", asteel, zsteel, 1.00, 4, wsteel);
2196bc42 889 // Al-Be alloy
890 //
891 AliMixture(21, "AlBe$", aAlBe, zAlBe, 2.07, 2, wAlBe);
7bd7faf8 892 //
893 // ****************
894 // Defines tracking media parameters.
895 //
896 Float_t epsil = .001; // Tracking precision,
897 Float_t stemax = -0.01; // Maximum displacement for multiple scat
898 Float_t tmaxfd = -20.; // Maximum angle due to field deflection
899 Float_t deemax = -.3; // Maximum fractional energy loss, DLS
900 Float_t stmin = -.8;
901 // ***************
902 //
903 // Beryllium
904
905 AliMedium(5, "BE", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
906
907 // Carbon
908 AliMedium(6, "C", 6, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
909 //
910 // Aluminum
911 AliMedium(9, "ALU", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
912 //
913 // Air
914 AliMedium(15, "AIR", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
915 //
916 // Vacuum
917 AliMedium(16, "VACUUM", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
918 //
919 // Steel
920 AliMedium(19, "INOX", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
921 //
922 // Getter
923 AliMedium(20, "GETTER", 20, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
2196bc42 924 //
925 // AlBe - Aloy
926 AliMedium(21, "AlBe" , 21, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
927
fe4da5cc 928}
929
930
fe4da5cc 931
932
933
934
935
936
937
938