1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.7 2000/06/15 09:40:31 morsch
19 Obsolete typedef keyword removed
21 Revision 1.6 2000/06/13 15:01:38 morsch
22 Make kind of heavy shielding material (Pb, NiCuW) dependent on presence of outer cone.
24 Revision 1.5 2000/06/12 19:40:00 morsch
25 New structure of beam pipe and heating jacket.
26 Optional outer Pb cone added. Not yet compatible with chamber inner radii.
28 Revision 1.4 2000/04/03 08:13:40 fca
29 Introduce extra scope for non ANSI compliant C++ compilers
31 Revision 1.3 2000/01/17 10:29:30 morsch
32 Overlap between Shield and Absorber due to limited numerical precision removed
33 by displacing the Shield by epsilon = 0.01 cm.
35 Revision 1.2 2000/01/13 11:27:51 morsch
36 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
38 Revision 1.1 2000/01/12 15:44:03 morsch
39 Standard version of SHIL
43 ///////////////////////////////////////////////////////////////////////////////
45 // Muon Shield Class //
46 // This class contains a description of the muon shield //
50 <img src="picts/AliSHILClass.gif">
55 ///////////////////////////////////////////////////////////////////////////////
57 #include "AliSHILv0.h"
63 //_____________________________________________________________________________
64 AliSHILv0::AliSHILv0()
67 // Default constructor for muon shield
71 //_____________________________________________________________________________
72 AliSHILv0::AliSHILv0(const char *name, const char *title)
76 // Standard constructor for muon shield
81 // Pb cone not yet compatible with muon chamber inner radii
82 // Switched off by default
86 //_____________________________________________________________________________
87 void AliSHILv0::CreateGeometry()
90 // Build muon shield geometry
95 <img src="picts/AliSHILv0.gif">
100 <img src="picts/AliSHILv0Tree.gif">
104 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[27], par3[27],
108 Int_t *idtmed = fIdtmed->GetArray()-1699;
110 #include "ABSOSHILConst.h"
111 #include "SHILConst.h"
113 enum {kC=1705, kAl=1708, kFe=1709, kCu=1710, kW=1711, kPb=1712,
114 kNiCuW=1720, kVacuum=1714, kAir=1714, kConcrete=1716,
115 kPolyCH2=1717, kSteel=1709, kInsulation=1713};
117 // Material of the rear part of the shield
119 if (fPbCone) iHeavy=kPb;
125 Float_t dRear1=dRear;
127 Float_t zstart=zRear-dRear1;
133 Float_t dl=(zvac12-zstart)/2.;
138 par0[5] = zstart * TMath::Tan(accMin);
140 par0[6] = -dl+dRear1;
142 par0[8] = zRear * TMath::Tan(accMin);
144 par0[9] = -dl+dRear1;
148 par0[12] = -dz+zvac4;
152 par0[15] = -dz+zvac4;
156 par0[18] = -dz+zvac6;
160 par0[21] = -dz+zvac6;
162 par0[23] = zvac6 * TMath::Tan(accMin);
164 par0[24] = -dz+zConeE;
168 par0[27] = -dz+zvac10;
172 par0[30] = -dz+zvac10;
176 par0[33] = -dz+zvac11;
180 par0[36] = -dz+zvac11;
184 par0[39] = -dz+zvac12;
188 gMC->Gsvolu("YMOT", "PCON", idtmed[kVacuum], par0, 42);
190 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
196 // First section: bellows below and behind front absorber
202 dl=(zvac4-zstart)/2.;
205 par1[4] = rAbs+(zstart-zOpen) * TMath::Tan(thetaOpen1);
206 par1[5] = zstart * TMath::Tan(accMin);
208 par1[6] = -dl+zvac1-zstart;
209 par1[7] = rAbs+ (zvac1-zOpen) * TMath::Tan(thetaOpen1);
210 par1[8] = zvac1 * TMath::Tan(accMin);
212 par1[9] = par1[6]+dr11;
213 par1[10] = par1[7]+dr11;
214 par1[11] = (zvac1+dr11) * TMath::Tan(accMin);
216 par1[12] = -dl+dRear1;
218 par1[14] = zRear * TMath::Tan(accMin);
220 par1[15] = -dl+dRear1;
224 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
228 par1[21] = par1[18]+dr12;
229 par1[22] = par1[19]+dr12;
232 par1[24] = par1[21]+dF1;
236 par1[27] = par1[24]+dr12;
237 par1[28] = par1[25]-dr12;
240 par1[30] = par1[27]+dB1;
244 par1[33] = par1[30]+dr13;
245 par1[34] = par1[31]-dr13;
248 par1[36] = -dl+zvac4-zstart;
249 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(thetaOpen2);
253 Float_t rBox=par1[31]-0.1;
255 gMC->Gsvolu("YGO1", "PCON", idtmed[kNiCuW], par1, 39);
256 { // Begin local scope for i
257 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
258 } // End local scope for i
259 gMC->Gsvolu("YMO1", "PCON", idtmed[kVacuum+40], par1, 39);
260 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
262 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
267 tpar[0]=R11-dRSteel1;
270 gMC->Gsvolu("YSE1", "TUBE", idtmed[kNiCuW], tpar, 3);
272 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
274 // 1st section: vacuum system
282 gMC->Gsvolu("YB11", "TUBE", idtmed[kSteel+40], tpar, 3);
287 tpar[2]=(lB1/2.-2.*eB1)/2.;
288 gMC->Gsvolu("YB12", "TUBE", idtmed[kSteel+40], tpar, 3);
294 gMC->Gsvolu("YB13", "TUBE", idtmed[kSteel+40], tpar, 3);
301 gMC->Gsvolu("YBU1", "TUBE", idtmed[kVacuum+40], tpar, 3);
304 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
307 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
310 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
313 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
316 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
322 gMC->Gsvolu("YBM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
324 { // Begin local scope for i
325 for (Int_t i=0; i<10; i++) {
326 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0., dz, 0, "ONLY");
329 } // End local scope for i
330 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
331 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
333 dz=dl-dr13-(zvac4-zvac3)-tpar[2];
334 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
342 gMC->Gsvolu("YFM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
347 gMC->Gsvolu("YF11", "TUBE", idtmed[kSteel+40], tpar, 3);
348 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
353 gMC->Gsvolu("YF12", "TUBE", idtmed[kSteel+40], tpar, 3);
355 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
357 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
359 dz=-dl+(zvac2-zstart);
360 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
363 // pipe between flange and bellows
366 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
367 gMC->Gsvolu("YPF1", "TUBE", idtmed[kSteel+40], tpar, 3);
369 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
370 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
371 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
372 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
374 // pipe and heating jackets outside bellows
377 cpar0[0]=(zvac1-zstart)/2;
378 cpar0[1]=rVacu+(zstart-zOpen)*TMath::Tan(thetaOpen1)-0.05;
379 cpar0[2]=rAbs +(zstart-zOpen)*TMath::Tan(thetaOpen1);
380 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
381 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
382 gMC->Gsvolu("YV11", "CONE", idtmed[kSteel+40], cpar0, 5);
387 cpar[1]=cpar0[1]+0.15;
388 cpar[2]=cpar0[1]+0.65;
389 cpar[3]=cpar0[3]+0.15;
390 cpar[4]=cpar0[3]+0.65;
391 gMC->Gsvolu("YI11", "CONE", idtmed[kInsulation+40], cpar, 5);
392 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
395 cpar[1]=cpar0[1]+0.75;
396 cpar[2]=cpar0[1]+1.25;
397 cpar[3]=cpar0[3]+0.75;
398 cpar[4]=cpar0[3]+1.25;
399 gMC->Gsvolu("YP11", "CONE", idtmed[kVacuum+40], cpar, 5);
400 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
403 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
408 cpar0[0]=(zvac4-zvac3)/2;
410 cpar0[2]=cpar0[1]+dVacuS;
412 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
413 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
414 gMC->Gsvolu("YV12", "CONE", idtmed[kSteel], cpar0, 5);
415 Float_t r2V=cpar0[3];
419 cpar[1]=cpar0[1]+dTubeS;
420 cpar[2]=cpar0[1]+dTubeS+dInsuS;
421 cpar[3]=cpar0[3]+dTubeS;
422 cpar[4]=cpar0[3]+dTubeS+dInsuS;
423 gMC->Gsvolu("YI12", "CONE", idtmed[kInsulation], cpar, 5);
424 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
428 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
429 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
430 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
431 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
432 gMC->Gsvolu("YP12", "CONE", idtmed[kAir], cpar, 5);
433 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
436 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
439 // Between first and second bellow section
448 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(thetaOpen2);
451 par2[6] = -dl+(zvac6-zvac4);
452 par2[7] = r2+(zvac6-zvac3) * TMath::Tan(thetaOpen2);
455 par2[9] = -dl+(zvac6-zvac4);
457 par2[11] = zvac6*TMath::Tan(accMin);
459 // Start of Pb section
460 par2[12] = -dl+(zPb-zvac4);
461 par2[13] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
462 par2[14] = zPb*TMath::Tan(accMin);
465 // end of cone following 2 deg line
466 par2[15] = -dl+(zConeE-zvac4);
467 par2[16] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
470 par2[18] = -dl+(zvac7-zvac4);
471 par2[19] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
475 gMC->Gsvolu("YGO2", "PCON", idtmed[kNiCuW+40], par2, 21);
477 // Lead cone option replacing Tungsten
483 Float_t dlPb=(zvac7-zPb)/2.;
487 parPb[5] = zPb*TMath::Tan(accMin);
489 parPb[6] = -dlPb+(zConeE-zPb);
490 parPb[7] = parPb[4]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
494 parPb[10] = parPb[7]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
496 gMC->Gsvolu("YXO2", "PCON", idtmed[kPb], parPb, 12);
497 gMC->Gspos("YXO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
499 parPb[4] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
502 parPb[7] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
503 parPb[8] = parPb[5]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
505 parPb[10] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
506 parPb[11] = parPb[8]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
508 gMC->Gsvolu("YYO2", "PCON", idtmed[iHeavy+40], parPb, 12);
509 gMC->Gspos("YYO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
512 { // Begin local scope for i
513 for (Int_t i=4; i<23; i+=3) par2[i] = 0;
514 } // End local scope for i
516 gMC->Gsvolu("YMO2", "PCON", idtmed[kVacuum+40], par2, 24);
517 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
519 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
524 tpar[0]=R11-dRSteel1;
527 gMC->Gsvolu("YS21", "TUBE", idtmed[kSteel], tpar, 3);
529 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
531 tpar[0]=R21-dRSteel2;
533 tpar[2]=(zvac6-zvac5)/2.;
534 gMC->Gsvolu("YS22", "TUBE", idtmed[kSteel], tpar, 3);
536 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
540 cpar[1]=R21-dRSteel2;
541 cpar[2]=zvac6 * TMath::Tan(accMin);
543 cpar[4]=cpar[2]+4.*TMath::Tan(accMin);
545 gMC->Gsvolu("YS23", "CONE", idtmed[kSteel], cpar, 5);
547 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
550 cpar[0]=(zPb-zvac6-4.)/2;
552 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
553 cpar[1]=cpar[2]-dRSteel2;
554 cpar[3]=cpar[4]-dRSteel2;
556 gMC->Gsvolu("YS24", "CONE", idtmed[kSteel], cpar, 5);
558 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
561 cpar[0]=(zConeE-zPb)/2;
563 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
564 cpar[1]=cpar[2]-dRSteel2;
565 cpar[3]=cpar[4]-dRSteel2;
567 gMC->Gsvolu("YS25", "CONE", idtmed[kSteel], cpar, 5);
569 gMC->Gspos("YS25", 1, "YXO2", 0., 0., dz, 0, "ONLY");
574 tpar[2]=(zvac7-zConeE)/2.;
576 gMC->Gsvolu("YS26", "TUBE", idtmed[kSteel], tpar, 3);
578 gMC->Gspos("YS26", 1, "YXO2", 0., 0., dz, 0, "ONLY");
582 // 2nd section: vacuum system
584 cpar0[0]=(zvac7-zvac4)/2;
587 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
588 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
589 gMC->Gsvolu("YV21", "CONE", idtmed[kSteel+40], cpar0, 5);
593 cpar[1]=cpar0[1]+dTubeS;
594 cpar[2]=cpar0[1]+dTubeS+dInsuS;
595 cpar[3]=cpar0[3]+dTubeS;
596 cpar[4]=cpar0[3]+dTubeS+dInsuS;
597 gMC->Gsvolu("YI21", "CONE", idtmed[kInsulation+40], cpar, 5);
598 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
601 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
602 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
603 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
604 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
605 gMC->Gsvolu("YP21", "CONE", idtmed[kAir+40], cpar, 5);
606 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
609 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
613 // Third Section: Bellows and Flange
621 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
625 par3[7] = par3[4]+dr21;
628 par3[9] = par3[6]+dB2;
632 par3[12] = par3[9]+dr22;
633 par3[13] = par3[10]+dr22;
636 par3[15] = par3[12]+dF2;
640 par3[18] = par3[15]+dr22;
641 par3[19] = par3[16]-dr22;
644 par3[21] = par3[18]+dB2;
648 par3[24] = par3[21]+dr23;
649 par3[25] = par3[22]-dr23;
655 gMC->Gsvolu("YGO3", "PCON", idtmed[iHeavy+40], par3, 27);
658 parPb[1] = parPb[10];
660 parPb[3] = parPb[1]+2.*dl*TMath::Tan(thetaOpenPb);
662 gMC->Gsvolu("YXO3", "CONE", idtmed[kPb], parPb, 5);
663 gMC->Gspos("YXO3", 1, "YGO3", 0., 0., 0., 0, "ONLY");
664 { // Begin local scope for i
665 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
666 } // End local scope for i
667 gMC->Gsvolu("YMO3", "PCON", idtmed[kVacuum+40], par3, 27);
668 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
675 gMC->Gsvolu("YS31", "TUBE", idtmed[kSteel], tpar, 3);
676 gMC->Gspos("YS31", 1, "YXO3", 0., 0., 0., 0, "ONLY");
678 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
682 // 3rd section: vacuum system
690 gMC->Gsvolu("YB21", "TUBE", idtmed[kSteel+40], tpar, 3);
695 tpar[2]=(lB2/2.-2.*eB2)/2.;
696 gMC->Gsvolu("YB22", "TUBE", idtmed[kSteel+40], tpar, 3);
702 gMC->Gsvolu("YB23", "TUBE", idtmed[kSteel+40], tpar, 3);
709 gMC->Gsvolu("YBU2", "TUBE", idtmed[kVacuum+40], tpar, 3);
712 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
715 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
718 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
721 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
724 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
730 gMC->Gsvolu("YBM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
732 { // Begin local scope for i
733 for (Int_t i=0; i<7; i++) {
734 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
737 } // End local scope for i
739 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
742 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
750 gMC->Gsvolu("YFM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
755 gMC->Gsvolu("YF21", "TUBE", idtmed[kSteel+40], tpar, 3);
756 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
761 gMC->Gsvolu("YF22", "TUBE", idtmed[kSteel+40], tpar, 3);
763 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
765 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
768 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
772 // pipe between flange and bellows
775 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
776 gMC->Gsvolu("YPF2", "TUBE", idtmed[kSteel+40], tpar, 3);
777 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
778 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
779 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
780 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
783 // 4th section: rear shield and closing cone
788 dl=(zvac12-zvac9)/2.;
794 par4[6] = -dl+(zvac10-zvac9);
795 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(thetaOpen3);
802 par4[12] = -dl+(zvac11-zvac9);
803 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
810 par4[18] = -dl+(zvac12-zvac9);
814 gMC->Gsvolu("YGO4", "PCON", idtmed[iHeavy+40], par4, 21);
816 parPb[0] = (zvac10-zvac9)/2.;
819 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
821 gMC->Gsvolu("YXO4", "CONE", idtmed[kPb], parPb, 5);
822 gMC->Gspos("YXO4", 1, "YGO4", 0., 0., -dl+parPb[0], 0, "ONLY");
824 parPb[0] = (zvac12-zvac10)/2.;
827 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
829 gMC->Gsvolu("YXO5", "CONE", idtmed[kPb], parPb, 5);
830 gMC->Gspos("YXO5", 1, "YGO4", 0., 0., -dl+(zvac10-zvac9)+parPb[0], 0, "ONLY");
831 { // Begin local scope for i
832 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
833 } // End local scope for i
835 gMC->Gsvolu("YMO4", "PCON", idtmed[kVacuum+40], par4, 21);
836 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
841 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
844 // Closing concrete cone
846 cpar[0]=(zvac12-zvac11)/2.;
847 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
848 cpar[2] = cpar[1]+0.001;
851 gMC->Gsvolu("YCC4", "CONE", idtmed[kConcrete+40], cpar, 5);
853 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
860 tpar[2]=(zvac10-zvac9)/2.;
861 gMC->Gsvolu("YS41", "TUBE", idtmed[kSteel], tpar, 3);
863 gMC->Gspos("YS41", 1, "YXO4", 0., 0., 0., 0, "ONLY");
869 gMC->Gsvolu("YS42", "TUBE", idtmed[kSteel], tpar, 3);
871 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
874 tpar[0]=R41-dRSteel2;
876 tpar[2]=(zvac11-zvac10)/2.;
877 gMC->Gsvolu("YS43", "TUBE", idtmed[kSteel], tpar, 3);
879 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
885 tpar[2]=(zvac11-zvac10)/2.;
886 gMC->Gsvolu("YPBI", "TUBE", idtmed[kPb+40], tpar, 3);
888 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
892 tpar[2]=(zvac11-zvac10)/2.;
893 gMC->Gsvolu("YPBO", "TUBE", idtmed[kPb], tpar, 3);
894 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
902 tpar[2]=(zvac12-zvac11)/2.;
903 gMC->Gsvolu("YFEI", "TUBE", idtmed[kFe+40], tpar, 3);
905 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
910 gMC->Gsvolu("YFEO", "TUBE", idtmed[kFe], tpar, 3);
911 dz=-(zvac12-zvac11)/2.+tpar[2];
912 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
919 gMC->Gsvolu("YAEM", "TUBE", idtmed[kAir], tpar, 3);
923 gMC->Gsvolu("YFEM", "TUBE", idtmed[kFe], tpar, 3);
924 gMC->Gspos("YFEM", 1, "YAEM", 0., 0., 0., 0, "ONLY");
929 gMC->Gspos("YAEM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
934 // 4th section: vacuum system
936 // up to closing cone
937 cpar0[0]=(zvac11-zvac9)/2;
940 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
941 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
942 gMC->Gsvolu("YV31", "CONE", idtmed[kSteel+40], cpar0, 5);
946 cpar[1]=cpar0[1]+dTubeS;
947 cpar[2]=cpar0[1]+dTubeS+dInsuS;
948 cpar[3]=cpar0[3]+dTubeS;
949 cpar[4]=cpar0[3]+dTubeS+dInsuS;
950 gMC->Gsvolu("YI31", "CONE", idtmed[kInsulation+40], cpar, 5);
951 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
954 cpar[1]=cpar0[2]-dProtS-dFreeS;
955 cpar[2]=cpar0[2]-dProtS;
956 cpar[3]=cpar0[4]-dProtS-dFreeS;
957 cpar[4]=cpar0[4]-dProtS;
958 gMC->Gsvolu("YP31", "CONE", idtmed[kVacuum+40], cpar, 5);
959 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
962 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
965 cpar0[0]=(zvac12-zvac11)/2;
966 cpar0[1]=r3-dVacuS+(zvac11-zvac9)*TMath::Tan(thetaOpen3);
967 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(thetaOpen3);
970 gMC->Gsvolu("YV32", "CONE", idtmed[kSteel+40], cpar0, 5);
974 cpar[1]=cpar0[1]+dTubeS;
975 cpar[2]=cpar0[1]+dTubeS+dInsuS;
976 cpar[3]=cpar0[3]+dTubeS;
977 cpar[4]=cpar0[3]+dTubeS+dInsuS;
978 gMC->Gsvolu("YI32", "CONE", idtmed[kInsulation+40], cpar, 5);
979 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
982 cpar[1]=cpar0[2]-dProtS-dFreeS;
983 cpar[2]=cpar0[2]-dProtS;
984 cpar[3]=cpar0[4]-dProtS-dFreeS;
985 cpar[4]=cpar0[4]-dProtS;
986 gMC->Gsvolu("YP32", "CONE", idtmed[kVacuum+40], cpar, 5);
987 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
990 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
997 tpar[2] = (zFilterOut - zFilterIn) / 2.;
998 gMC->Gsvolu("YFIM", "TUBE", idtmed[kFe+40], tpar, 3);
999 dz = (zFilterIn + zFilterOut) / 2.;
1001 gMC->Gsvolu("YFII","TUBE", idtmed[kFe], tpar, 3);
1002 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
1003 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1005 // Shielding close to chamber
1007 cpar[0]=(zch1-dzch-1.-zRear)/2.;
1009 cpar[2]=zRear*TMath::Tan(accMin);
1011 cpar[4]=(zRear+2.*cpar[0])*TMath::Tan(accMin);
1012 gMC->Gsvolu("YCS1", "CONE", idtmed[kNiCuW], cpar, 5);
1014 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1016 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
1018 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(accMin);
1021 gMC->Gsvolu("YCS2", "CONE", idtmed[kNiCuW], cpar, 5);
1023 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1027 cpar[2]=(zch1-dzch+1.)*TMath::Tan(accMin);
1029 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1030 gMC->Gsvolu("YCS3", "CONE", idtmed[kNiCuW], cpar, 5);
1032 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1035 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
1037 cpar[2]=zvac4*TMath::Tan(accMin);
1039 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(accMin);
1040 gMC->Gsvolu("YCS4", "CONE", idtmed[kNiCuW], cpar, 5);
1042 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1045 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
1047 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(accMin);
1049 cpar[4]=zvac6*TMath::Tan(accMin);
1050 gMC->Gsvolu("YCS5", "CONE", idtmed[kNiCuW], cpar, 5);
1052 gMC->Gspos("YCS5", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1056 cpar[2]=(zch2-dzch+1.)*TMath::Tan(accMin);
1058 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1059 gMC->Gsvolu("YCS6", "CONE", idtmed[kNiCuW], cpar, 5);
1061 gMC->Gspos("YCS6", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1075 par0[8] = 30.-(zConeE-zch31)*TMath::Tan(thetaOpenPbO);
1087 par0[17] = 30.-(zConeE-zch32)*TMath::Tan(thetaOpenPbO);
1092 par0[20] = 30.-(zConeE-zch41)*TMath::Tan(thetaOpenPbO);
1096 par0[23] = 30.-(zConeE-zch41)*TMath::Tan(thetaOpenPbO)-7.;
1100 par0[26] = 30.-(zConeE-zch41)*TMath::Tan(thetaOpenPbO)-7.;
1104 par0[29] = 30.-(zConeE-zch42)*TMath::Tan(thetaOpenPbO);
1109 par0[32] = 30.-(zConeE-zch51)*TMath::Tan(thetaOpenPbO);
1113 par0[35] = 30.-(zConeE-zch51)*TMath::Tan(thetaOpenPbO)-7.;
1117 par0[38] = 30.-(zConeE-zch51)*TMath::Tan(thetaOpenPbO)-7.;
1121 par0[41] = 30.-(zConeE-zch52)*TMath::Tan(thetaOpenPbO);
1123 par0[42] = zFilterIn;
1125 par0[44] = 30.-(zConeE-zFilterIn)*TMath::Tan(thetaOpenPbO);
1127 gMC->Gsvolu("YOPB", "PCON", idtmed[kPb], par0, 45);
1129 gMC->Gspos("YOPB", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1133 void AliSHILv0::Init()
1136 // Initialise the muon shield after it has been built
1141 for(i=0;i<35;i++) printf("*");
1142 printf(" SHILv0_INIT ");
1143 for(i=0;i<35;i++) printf("*");
1146 // Here the SHIL initialisation code (if any!)
1147 for(i=0;i<80;i++) printf("*");