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 1.3 2000/01/17 10:29:30 morsch
19 Overlap between Shield and Absorber due to limited numerical precision removed
20 by displacing the Shield by epsilon = 0.01 cm.
22 Revision 1.2 2000/01/13 11:27:51 morsch
23 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
25 Revision 1.1 2000/01/12 15:44:03 morsch
26 Standard version of SHIL
30 ///////////////////////////////////////////////////////////////////////////////
32 // Muon Shield Class //
33 // This class contains a description of the muon shield //
37 <img src="picts/AliSHILClass.gif">
42 ///////////////////////////////////////////////////////////////////////////////
44 #include "AliSHILv0.h"
50 //_____________________________________________________________________________
51 AliSHILv0::AliSHILv0()
54 // Default constructor for muon shield
58 //_____________________________________________________________________________
59 AliSHILv0::AliSHILv0(const char *name, const char *title)
63 // Standard constructor for muon shield
70 //_____________________________________________________________________________
71 void AliSHILv0::CreateGeometry()
74 // Build muon shield geometry
79 <img src="picts/AliSHILv0.gif">
84 <img src="picts/AliSHILv0Tree.gif">
88 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[21], par3[27], par4[21], par0[42];
91 Int_t *idtmed = fIdtmed->GetArray()-1699;
93 #include "ShieldConst.h"
97 Float_t d_rear1=d_rear-epsilon;
99 Float_t zstart=abs_l-d_rear1;
105 Float_t dl=(zvac12-zstart)/2.;
110 par0[5] = zstart * TMath::Tan(acc_min);
112 par0[6] = -dl+d_rear1;
114 par0[8] = abs_l * TMath::Tan(acc_min);
116 par0[9] = -dl+d_rear1;
120 par0[12] = -dz+zvac4;
124 par0[15] = -dz+zvac4;
128 par0[18] = -dz+zvac6;
132 par0[21] = -dz+zvac6;
134 par0[23] = zvac6 * TMath::Tan(acc_min);
136 par0[24] = -dz+zcone_e;
140 par0[27] = -dz+zvac10;
144 par0[30] = -dz+zvac10;
148 par0[33] = -dz+zvac11;
152 par0[36] = -dz+zvac11;
156 par0[39] = -dz+zvac12;
160 gMC->Gsvolu("YMOT", "PCON", idtmed[1755], par0, 42);
162 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
168 // First section: bellows below and behind front absorber
175 dl=(zvac4-zstart)/2.;
178 par1[4] = r_abs+(zstart-abs_c) * TMath::Tan(theta_open1);
179 par1[5] = zstart * TMath::Tan(acc_min);
181 par1[6] = -dl+zvac1-zstart;
182 par1[7] = r_abs+ (zvac1-abs_c) * TMath::Tan(theta_open1);
183 par1[8] = zvac1 * TMath::Tan(acc_min);
185 par1[9] = par1[6]+dr11;
186 par1[10] = par1[7]+dr11;
187 par1[11] = (zvac1+dr11) * TMath::Tan(acc_min);
189 par1[12] = -dl+d_rear1;
191 par1[14] = abs_l * TMath::Tan(acc_min);
193 par1[15] = -dl+d_rear1;
197 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
201 par1[21] = par1[18]+dr12;
202 par1[22] = par1[19]+dr12;
205 par1[24] = par1[21]+dF1;
209 par1[27] = par1[24]+dr12;
210 par1[28] = par1[25]-dr12;
213 par1[30] = par1[27]+dB1;
217 par1[33] = par1[30]+dr13;
218 par1[34] = par1[31]-dr13;
221 par1[36] = -dl+zvac4-zstart;
222 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(theta_open2);
227 gMC->Gsvolu("YGO1", "PCON", idtmed[1760], par1, 39);
229 { // Begin local scope for i
230 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
231 } // End local scope for i
232 gMC->Gsvolu("YMO1", "PCON", idtmed[1755], par1, 39);
234 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
237 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
242 tpar[0]=R11-dRSteel1;
244 tpar[2]=dl-d_rear1/2;
245 gMC->Gsvolu("YSE1", "TUBE", idtmed[1718], tpar, 3);
248 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
251 // 1st section: vacuum system
259 gMC->Gsvolu("YB11", "TUBE", idtmed[1758], tpar, 3);
264 tpar[2]=(lB1/2.-2.*eB1)/2.;
265 gMC->Gsvolu("YB12", "TUBE", idtmed[1758], tpar, 3);
271 gMC->Gsvolu("YB13", "TUBE", idtmed[1758], tpar, 3);
278 gMC->Gsvolu("YBU1", "TUBE", idtmed[1755], tpar, 3);
281 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
284 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
287 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
290 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
293 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
299 gMC->Gsvolu("YBM1", "TUBE", idtmed[1755], tpar, 3);
301 { // Begin local scope for i
302 for (Int_t i=0; i<10; i++) {
303 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0.,dz , 0, "ONLY");
306 } // End local scope for i
307 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
308 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
310 dz=dl-dr13-(zvac4-zvac3)-tpar[2]-(dr11-dr13);
311 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
319 gMC->Gsvolu("YFM1", "TUBE", idtmed[1755], tpar, 3);
321 tpar[0]=rF1-d_flange;
324 gMC->Gsvolu("YF11", "TUBE", idtmed[1758], tpar, 3);
325 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
328 tpar[1]=rF1-d_flange;
330 gMC->Gsvolu("YF12", "TUBE", idtmed[1758], tpar, 3);
332 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
334 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
336 dz=-dl+(zvac2-zstart);
337 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
341 // pipe between flange and bellows
344 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
345 gMC->Gsvolu("YPF1", "TUBE", idtmed[1758], tpar, 3);
346 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
347 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
348 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
349 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
352 // pipe and heating jackets outside bellows
355 cpar0[0]=(zvac1-zstart)/2;
356 cpar0[1]=r_vacu+(zstart-abs_c)*TMath::Tan(theta_open1);
357 cpar0[2]=r_abs +(zstart-abs_c)*TMath::Tan(theta_open1);
358 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open1);
359 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open1);
360 gMC->Gsvolu("YV11", "CONE", idtmed[1758], cpar0, 5);
364 cpar[1]=cpar0[1]+d_tube;
365 cpar[2]=cpar0[1]+d_tube+d_insu;
366 cpar[3]=cpar0[3]+d_tube;
367 cpar[4]=cpar0[3]+d_tube+d_insu;
368 gMC->Gsvolu("YI11", "CONE", idtmed[1753], cpar, 5);
369 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
372 cpar[1]=cpar0[2]-d_prot-d_free;
373 cpar[2]=cpar0[2]-d_prot;
374 cpar[3]=cpar0[4]-d_prot-d_free;
375 cpar[4]=cpar0[4]-d_prot;
376 gMC->Gsvolu("YP11", "CONE", idtmed[1755], cpar, 5);
377 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
380 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
383 cpar0[0]=(zvac4-zvac3)/2;
386 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open2);
387 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open2);
388 gMC->Gsvolu("YV12", "CONE", idtmed[1758], cpar0, 5);
392 cpar[1]=cpar0[1]+d_tube;
393 cpar[2]=cpar0[1]+d_tube+d_insu;
394 cpar[3]=cpar0[3]+d_tube;
395 cpar[4]=cpar0[3]+d_tube+d_insu;
396 gMC->Gsvolu("YI12", "CONE", idtmed[1753], cpar, 5);
397 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
400 cpar[1]=cpar0[2]-d_prot-d_free;
401 cpar[2]=cpar0[2]-d_prot;
402 cpar[3]=cpar0[4]-d_prot-d_free;
403 cpar[4]=cpar0[4]-d_prot;
404 gMC->Gsvolu("YP12", "CONE", idtmed[1755], cpar, 5);
405 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
408 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
419 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(theta_open2);
426 par2[9] = -dl+(zvac6-zvac4);
427 par2[10] = r2+(zvac6-zvac3) * TMath::Tan(theta_open2);
430 par2[12] = -dl+(zvac6-zvac4);
432 par2[14] = zvac6*TMath::Tan(acc_min);
434 par2[15] = -dl+(zcone_e-zvac4);
435 par2[16] = r2+(zcone_e-zvac3) * TMath::Tan(theta_open2);
438 par2[18] = -dl+(zvac7-zvac4);
439 par2[19] = r2+(zvac7-zvac3) * TMath::Tan(theta_open2);
443 gMC->Gsvolu("YGO2", "PCON", idtmed[1760], par2, 21);
445 { // Begin local scope for i
446 for (Int_t i=4; i<20; i+=3) par2[i] = 0;
447 } // End local scope for i
449 gMC->Gsvolu("YMO2", "PCON", idtmed[1755], par2, 21);
450 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
453 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
458 tpar[0]=R11-dRSteel1;
461 gMC->Gsvolu("YS21", "TUBE", idtmed[1718], tpar, 3);
463 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
465 tpar[0]=R21-dRSteel2;
467 tpar[2]=(zvac6-zvac5)/2.;
468 gMC->Gsvolu("YS22", "TUBE", idtmed[1718], tpar, 3);
470 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
474 cpar[1]=R21-dRSteel2;
475 cpar[2]=zvac6 * TMath::Tan(acc_min);
477 cpar[4]=cpar[2]+4.*TMath::Tan(acc_min);
479 gMC->Gsvolu("YS23", "CONE", idtmed[1718], cpar, 5);
481 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
484 cpar[0]=(zcone_e-zvac6-4.)/2;
486 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(acc_min);
487 cpar[1]=cpar[2]-dRSteel2;
488 cpar[3]=cpar[4]-dRSteel2;
490 gMC->Gsvolu("YS24", "CONE", idtmed[1718], cpar, 5);
492 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
497 tpar[2]=(zvac7-zcone_e)/2.;
499 gMC->Gsvolu("YS25", "TUBE", idtmed[1718], tpar, 3);
501 gMC->Gspos("YS25", 1, "YGO2", 0., 0., dz, 0, "ONLY");
505 // 2nd section: vacuum system
507 cpar0[0]=(zvac7-zvac4)/2;
508 cpar0[1]=r2-d_vacu+(zvac4-zvac3)*TMath::Tan(theta_open2);
509 cpar0[2]=r2 +(zvac4-zvac3)*TMath::Tan(theta_open2);
510 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open2);
511 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open2);
512 gMC->Gsvolu("YV21", "CONE", idtmed[1758], cpar0, 5);
516 cpar[1]=cpar0[1]+d_tube;
517 cpar[2]=cpar0[1]+d_tube+d_insu;
518 cpar[3]=cpar0[3]+d_tube;
519 cpar[4]=cpar0[3]+d_tube+d_insu;
520 gMC->Gsvolu("YI21", "CONE", idtmed[1753], cpar, 5);
521 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
524 cpar[1]=cpar0[2]-d_prot-d_free;
525 cpar[2]=cpar0[2]-d_prot;
526 cpar[3]=cpar0[4]-d_prot-d_free;
527 cpar[4]=cpar0[4]-d_prot;
528 gMC->Gsvolu("YP21", "CONE", idtmed[1755], cpar, 5);
529 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
532 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
535 // Third Section: Bellows and Flange
543 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(theta_open2);
547 par3[7] = par3[4]+dr21;
550 par3[9] = par3[6]+dB2;
554 par3[12] = par3[9]+dr22;
555 par3[13] = par3[10]+dr22;
558 par3[15] = par3[12]+dF2;
562 par3[18] = par3[15]+dr22;
563 par3[19] = par3[16]-dr22;
566 par3[21] = par3[18]+dB2;
570 par3[24] = par3[21]+dr23;
571 par3[25] = par3[22]-dr23;
576 gMC->Gsvolu("YGO3", "PCON", idtmed[1760], par3, 27);
578 { // Begin local scope for i
579 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
580 } // End local scope for i
582 gMC->Gsvolu("YMO3", "PCON", idtmed[1755], par3, 27);
583 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
590 gMC->Gsvolu("YS31", "TUBE", idtmed[1718], tpar, 3);
591 gMC->Gspos("YS31", 1, "YGO3", 0., 0., 0., 0, "ONLY");
593 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
597 // 3rd section: vacuum system
605 gMC->Gsvolu("YB21", "TUBE", idtmed[1758], tpar, 3);
610 tpar[2]=(lB2/2.-2.*eB2)/2.;
611 gMC->Gsvolu("YB22", "TUBE", idtmed[1758], tpar, 3);
617 gMC->Gsvolu("YB23", "TUBE", idtmed[1758], tpar, 3);
624 gMC->Gsvolu("YBU2", "TUBE", idtmed[1755], tpar, 3);
627 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
630 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
633 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
636 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
639 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
645 gMC->Gsvolu("YBM2", "TUBE", idtmed[1755], tpar, 3);
647 { // Begin local scope for i
648 for (Int_t i=0; i<7; i++) {
649 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
652 } // End local scope for i
655 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
658 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
666 gMC->Gsvolu("YFM2", "TUBE", idtmed[1755], tpar, 3);
668 tpar[0]=rF2-d_flange;
671 gMC->Gsvolu("YF21", "TUBE", idtmed[1758], tpar, 3);
672 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
675 tpar[1]=rF2-d_flange;
677 gMC->Gsvolu("YF22", "TUBE", idtmed[1758], tpar, 3);
679 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
681 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
684 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
688 // pipe between flange and bellows
691 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
692 gMC->Gsvolu("YPF2", "TUBE", idtmed[1758], tpar, 3);
693 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
694 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
695 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
696 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
699 // 4th section: rear shield and closing cone
704 dl=(zvac12-zvac9)/2.;
710 par4[6] = -dl+(zvac10-zvac9);
711 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(theta_open3);
718 par4[12] = -dl+(zvac11-zvac9);
719 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(theta_open3);
726 par4[18] = -dl+(zvac12-zvac9);
730 gMC->Gsvolu("YGO4", "PCON", idtmed[1760], par4, 21);
731 { // Begin local scope for i
732 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
733 } // End local scope for i
736 gMC->Gsvolu("YMO4", "PCON", idtmed[1755], par4, 21);
737 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
741 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
744 // Closing concrete cone
746 cpar[0]=(zvac12-zvac11)/2.;
747 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(theta_open3);
748 cpar[2] = cpar[1]+0.001;
751 gMC->Gsvolu("YCC4", "CONE", idtmed[1752], cpar, 5);
753 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
760 tpar[2]=(zvac10-zvac9)/2.;
761 gMC->Gsvolu("YS41", "TUBE", idtmed[1718], tpar, 3);
763 gMC->Gspos("YS41", 1, "YGO4", 0., 0., dz, 0, "ONLY");
769 gMC->Gsvolu("YS42", "TUBE", idtmed[1718], tpar, 3);
771 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
774 tpar[0]=R41-dRSteel2;
776 tpar[2]=(zvac11-zvac10-4)/2.;
777 gMC->Gsvolu("YS43", "TUBE", idtmed[1718], tpar, 3);
779 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
785 tpar[2]=(zvac11-zvac10)/2.;
786 gMC->Gsvolu("YPBI", "TUBE", idtmed[1752], tpar, 3);
788 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
792 tpar[2]=(zvac11-zvac10)/2.;
793 gMC->Gsvolu("YPBO", "TUBE", idtmed[1712], tpar, 3);
794 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
802 tpar[2]=(zvac12-zvac11)/2.;
803 gMC->Gsvolu("YFEI", "TUBE", idtmed[1749], tpar, 3);
805 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
810 gMC->Gsvolu("YFEO", "TUBE", idtmed[1709], tpar, 3);
811 dz=-(zvac12-zvac11)/2.+tpar[2];
812 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
815 // 4th section: vacuum system
817 // up to closing cone
818 cpar0[0]=(zvac11-zvac9)/2;
821 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open3);
822 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open3);
823 gMC->Gsvolu("YV31", "CONE", idtmed[1758], cpar0, 5);
827 cpar[1]=cpar0[1]+d_tube;
828 cpar[2]=cpar0[1]+d_tube+d_insu;
829 cpar[3]=cpar0[3]+d_tube;
830 cpar[4]=cpar0[3]+d_tube+d_insu;
831 gMC->Gsvolu("YI31", "CONE", idtmed[1753], cpar, 5);
832 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
835 cpar[1]=cpar0[2]-d_prot-d_free;
836 cpar[2]=cpar0[2]-d_prot;
837 cpar[3]=cpar0[4]-d_prot-d_free;
838 cpar[4]=cpar0[4]-d_prot;
839 gMC->Gsvolu("YP31", "CONE", idtmed[1755], cpar, 5);
840 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
843 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
846 cpar0[0]=(zvac12-zvac11)/2;
847 cpar0[1]=r3-d_vacu+(zvac11-zvac9)*TMath::Tan(theta_open3);
848 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(theta_open3);
851 gMC->Gsvolu("YV32", "CONE", idtmed[1758], cpar0, 5);
855 cpar[1]=cpar0[1]+d_tube;
856 cpar[2]=cpar0[1]+d_tube+d_insu;
857 cpar[3]=cpar0[3]+d_tube;
858 cpar[4]=cpar0[3]+d_tube+d_insu;
859 gMC->Gsvolu("YI32", "CONE", idtmed[1753], cpar, 5);
860 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
863 cpar[1]=cpar0[2]-d_prot-d_free;
864 cpar[2]=cpar0[2]-d_prot;
865 cpar[3]=cpar0[4]-d_prot-d_free;
866 cpar[4]=cpar0[4]-d_prot;
867 gMC->Gsvolu("YP32", "CONE", idtmed[1755], cpar, 5);
868 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
871 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
878 tpar[2] = (zfil_out - zfil_in) / 2.;
879 gMC->Gsvolu("YFIM", "TUBE", idtmed[1749], tpar, 3);
880 dz = (zfil_in + zfil_out) / 2.;
882 gMC->Gsvolu("YFII","TUBE", idtmed[1709], tpar, 3);
883 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
884 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
886 // Shielding close to chamber
889 cpar[0]=(zch1-dzch-1.-abs_l)/2.;
891 cpar[2]=abs_l*TMath::Tan(acc_min);
893 cpar[4]=(abs_l+2.*cpar[0])*TMath::Tan(acc_min);
894 gMC->Gsvolu("YCS1", "CONE", idtmed[1720], cpar, 5);
896 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
898 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
900 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(acc_min);
903 gMC->Gsvolu("YCS2", "CONE", idtmed[1720], cpar, 5);
905 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
908 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
910 cpar[2]=zvac4*TMath::Tan(acc_min);
912 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(acc_min);
913 gMC->Gsvolu("YCS3", "CONE", idtmed[1720], cpar, 5);
915 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
918 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
920 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(acc_min);
922 cpar[4]=zvac6*TMath::Tan(acc_min);
923 gMC->Gsvolu("YCS4", "CONE", idtmed[1720], cpar, 5);
925 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
929 void AliSHILv0::Init()
932 // Initialise the muon shield after it has been built
937 for(i=0;i<35;i++) printf("*");
938 printf(" SHILv0_INIT ");
939 for(i=0;i<35;i++) printf("*");
942 // Here the SHIL initialisation code (if any!)
943 for(i=0;i<80;i++) printf("*");