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 1.2 2000/01/13 11:27:51 morsch
19 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
21 Revision 1.1 2000/01/12 15:44:03 morsch
22 Standard version of SHIL
26 ///////////////////////////////////////////////////////////////////////////////
28 // Muon Shield Class //
29 // This class contains a description of the muon shield //
33 <img src="picts/AliSHILClass.gif">
38 ///////////////////////////////////////////////////////////////////////////////
40 #include "AliSHILv0.h"
46 //_____________________________________________________________________________
47 AliSHILv0::AliSHILv0()
50 // Default constructor for muon shield
54 //_____________________________________________________________________________
55 AliSHILv0::AliSHILv0(const char *name, const char *title)
59 // Standard constructor for muon shield
66 //_____________________________________________________________________________
67 void AliSHILv0::CreateGeometry()
70 // Build muon shield geometry
75 <img src="picts/AliSHILv0.gif">
80 <img src="picts/AliSHILv0Tree.gif">
84 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[21], par3[27], par4[21], par0[42];
87 Int_t *idtmed = fIdtmed->GetArray()-1699;
89 #include "ShieldConst.h"
93 Float_t d_rear1=d_rear-epsilon;
95 Float_t zstart=abs_l-d_rear1;
101 Float_t dl=(zvac12-zstart)/2.;
106 par0[5] = zstart * TMath::Tan(acc_min);
108 par0[6] = -dl+d_rear1;
110 par0[8] = abs_l * TMath::Tan(acc_min);
112 par0[9] = -dl+d_rear1;
116 par0[12] = -dz+zvac4;
120 par0[15] = -dz+zvac4;
124 par0[18] = -dz+zvac6;
128 par0[21] = -dz+zvac6;
130 par0[23] = zvac6 * TMath::Tan(acc_min);
132 par0[24] = -dz+zcone_e;
136 par0[27] = -dz+zvac10;
140 par0[30] = -dz+zvac10;
144 par0[33] = -dz+zvac11;
148 par0[36] = -dz+zvac11;
152 par0[39] = -dz+zvac12;
156 gMC->Gsvolu("YMOT", "PCON", idtmed[1755], par0, 42);
158 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
164 // First section: bellows below and behind front absorber
171 dl=(zvac4-zstart)/2.;
174 par1[4] = r_abs+(zstart-abs_c) * TMath::Tan(theta_open1);
175 par1[5] = zstart * TMath::Tan(acc_min);
177 par1[6] = -dl+zvac1-zstart;
178 par1[7] = r_abs+ (zvac1-abs_c) * TMath::Tan(theta_open1);
179 par1[8] = zvac1 * TMath::Tan(acc_min);
181 par1[9] = par1[6]+dr11;
182 par1[10] = par1[7]+dr11;
183 par1[11] = (zvac1+dr11) * TMath::Tan(acc_min);
185 par1[12] = -dl+d_rear1;
187 par1[14] = abs_l * TMath::Tan(acc_min);
189 par1[15] = -dl+d_rear1;
193 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
197 par1[21] = par1[18]+dr12;
198 par1[22] = par1[19]+dr12;
201 par1[24] = par1[21]+dF1;
205 par1[27] = par1[24]+dr12;
206 par1[28] = par1[25]-dr12;
209 par1[30] = par1[27]+dB1;
213 par1[33] = par1[30]+dr13;
214 par1[34] = par1[31]-dr13;
217 par1[36] = -dl+zvac4-zstart;
218 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(theta_open2);
223 gMC->Gsvolu("YGO1", "PCON", idtmed[1760], par1, 39);
225 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
226 gMC->Gsvolu("YMO1", "PCON", idtmed[1755], par1, 39);
228 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
231 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
236 tpar[0]=R11-dRSteel1;
238 tpar[2]=dl-d_rear1/2;
239 gMC->Gsvolu("YSE1", "TUBE", idtmed[1718], tpar, 3);
242 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
245 // 1st section: vacuum system
253 gMC->Gsvolu("YB11", "TUBE", idtmed[1758], tpar, 3);
258 tpar[2]=(lB1/2.-2.*eB1)/2.;
259 gMC->Gsvolu("YB12", "TUBE", idtmed[1758], tpar, 3);
265 gMC->Gsvolu("YB13", "TUBE", idtmed[1758], tpar, 3);
272 gMC->Gsvolu("YBU1", "TUBE", idtmed[1755], tpar, 3);
275 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
278 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
281 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
284 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
287 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
293 gMC->Gsvolu("YBM1", "TUBE", idtmed[1755], tpar, 3);
295 for (Int_t i=0; i<10; i++) {
296 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0.,dz , 0, "ONLY");
299 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
300 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
302 dz=dl-dr13-(zvac4-zvac3)-tpar[2]-(dr11-dr13);
303 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
311 gMC->Gsvolu("YFM1", "TUBE", idtmed[1755], tpar, 3);
313 tpar[0]=rF1-d_flange;
316 gMC->Gsvolu("YF11", "TUBE", idtmed[1758], tpar, 3);
317 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
320 tpar[1]=rF1-d_flange;
322 gMC->Gsvolu("YF12", "TUBE", idtmed[1758], tpar, 3);
324 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
326 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
328 dz=-dl+(zvac2-zstart);
329 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
333 // pipe between flange and bellows
336 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
337 gMC->Gsvolu("YPF1", "TUBE", idtmed[1758], tpar, 3);
338 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
339 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
340 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
341 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
344 // pipe and heating jackets outside bellows
347 cpar0[0]=(zvac1-zstart)/2;
348 cpar0[1]=r_vacu+(zstart-abs_c)*TMath::Tan(theta_open1);
349 cpar0[2]=r_abs +(zstart-abs_c)*TMath::Tan(theta_open1);
350 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open1);
351 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open1);
352 gMC->Gsvolu("YV11", "CONE", idtmed[1758], cpar0, 5);
356 cpar[1]=cpar0[1]+d_tube;
357 cpar[2]=cpar0[1]+d_tube+d_insu;
358 cpar[3]=cpar0[3]+d_tube;
359 cpar[4]=cpar0[3]+d_tube+d_insu;
360 gMC->Gsvolu("YI11", "CONE", idtmed[1753], cpar, 5);
361 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
364 cpar[1]=cpar0[2]-d_prot-d_free;
365 cpar[2]=cpar0[2]-d_prot;
366 cpar[3]=cpar0[4]-d_prot-d_free;
367 cpar[4]=cpar0[4]-d_prot;
368 gMC->Gsvolu("YP11", "CONE", idtmed[1755], cpar, 5);
369 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
372 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
375 cpar0[0]=(zvac4-zvac3)/2;
378 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open2);
379 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open2);
380 gMC->Gsvolu("YV12", "CONE", idtmed[1758], cpar0, 5);
384 cpar[1]=cpar0[1]+d_tube;
385 cpar[2]=cpar0[1]+d_tube+d_insu;
386 cpar[3]=cpar0[3]+d_tube;
387 cpar[4]=cpar0[3]+d_tube+d_insu;
388 gMC->Gsvolu("YI12", "CONE", idtmed[1753], cpar, 5);
389 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
392 cpar[1]=cpar0[2]-d_prot-d_free;
393 cpar[2]=cpar0[2]-d_prot;
394 cpar[3]=cpar0[4]-d_prot-d_free;
395 cpar[4]=cpar0[4]-d_prot;
396 gMC->Gsvolu("YP12", "CONE", idtmed[1755], cpar, 5);
397 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
400 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
411 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(theta_open2);
418 par2[9] = -dl+(zvac6-zvac4);
419 par2[10] = r2+(zvac6-zvac3) * TMath::Tan(theta_open2);
422 par2[12] = -dl+(zvac6-zvac4);
424 par2[14] = zvac6*TMath::Tan(acc_min);
426 par2[15] = -dl+(zcone_e-zvac4);
427 par2[16] = r2+(zcone_e-zvac3) * TMath::Tan(theta_open2);
430 par2[18] = -dl+(zvac7-zvac4);
431 par2[19] = r2+(zvac7-zvac3) * TMath::Tan(theta_open2);
435 gMC->Gsvolu("YGO2", "PCON", idtmed[1760], par2, 21);
437 for (Int_t i=4; i<20; i+=3) par2[i] = 0;
439 gMC->Gsvolu("YMO2", "PCON", idtmed[1755], par2, 21);
440 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
443 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
448 tpar[0]=R11-dRSteel1;
451 gMC->Gsvolu("YS21", "TUBE", idtmed[1718], tpar, 3);
453 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
455 tpar[0]=R21-dRSteel2;
457 tpar[2]=(zvac6-zvac5)/2.;
458 gMC->Gsvolu("YS22", "TUBE", idtmed[1718], tpar, 3);
460 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
464 cpar[1]=R21-dRSteel2;
465 cpar[2]=zvac6 * TMath::Tan(acc_min);
467 cpar[4]=cpar[2]+4.*TMath::Tan(acc_min);
469 gMC->Gsvolu("YS23", "CONE", idtmed[1718], cpar, 5);
471 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
474 cpar[0]=(zcone_e-zvac6-4.)/2;
476 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(acc_min);
477 cpar[1]=cpar[2]-dRSteel2;
478 cpar[3]=cpar[4]-dRSteel2;
480 gMC->Gsvolu("YS24", "CONE", idtmed[1718], cpar, 5);
482 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
487 tpar[2]=(zvac7-zcone_e)/2.;
489 gMC->Gsvolu("YS25", "TUBE", idtmed[1718], tpar, 3);
491 gMC->Gspos("YS25", 1, "YGO2", 0., 0., dz, 0, "ONLY");
495 // 2nd section: vacuum system
497 cpar0[0]=(zvac7-zvac4)/2;
498 cpar0[1]=r2-d_vacu+(zvac4-zvac3)*TMath::Tan(theta_open2);
499 cpar0[2]=r2 +(zvac4-zvac3)*TMath::Tan(theta_open2);
500 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open2);
501 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open2);
502 gMC->Gsvolu("YV21", "CONE", idtmed[1758], cpar0, 5);
506 cpar[1]=cpar0[1]+d_tube;
507 cpar[2]=cpar0[1]+d_tube+d_insu;
508 cpar[3]=cpar0[3]+d_tube;
509 cpar[4]=cpar0[3]+d_tube+d_insu;
510 gMC->Gsvolu("YI21", "CONE", idtmed[1753], cpar, 5);
511 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
514 cpar[1]=cpar0[2]-d_prot-d_free;
515 cpar[2]=cpar0[2]-d_prot;
516 cpar[3]=cpar0[4]-d_prot-d_free;
517 cpar[4]=cpar0[4]-d_prot;
518 gMC->Gsvolu("YP21", "CONE", idtmed[1755], cpar, 5);
519 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
522 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
525 // Third Section: Bellows and Flange
533 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(theta_open2);
537 par3[7] = par3[4]+dr21;
540 par3[9] = par3[6]+dB2;
544 par3[12] = par3[9]+dr22;
545 par3[13] = par3[10]+dr22;
548 par3[15] = par3[12]+dF2;
552 par3[18] = par3[15]+dr22;
553 par3[19] = par3[16]-dr22;
556 par3[21] = par3[18]+dB2;
560 par3[24] = par3[21]+dr23;
561 par3[25] = par3[22]-dr23;
566 gMC->Gsvolu("YGO3", "PCON", idtmed[1760], par3, 27);
568 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
570 gMC->Gsvolu("YMO3", "PCON", idtmed[1755], par3, 27);
571 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
578 gMC->Gsvolu("YS31", "TUBE", idtmed[1718], tpar, 3);
579 gMC->Gspos("YS31", 1, "YGO3", 0., 0., 0., 0, "ONLY");
581 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
585 // 3rd section: vacuum system
593 gMC->Gsvolu("YB21", "TUBE", idtmed[1758], tpar, 3);
598 tpar[2]=(lB2/2.-2.*eB2)/2.;
599 gMC->Gsvolu("YB22", "TUBE", idtmed[1758], tpar, 3);
605 gMC->Gsvolu("YB23", "TUBE", idtmed[1758], tpar, 3);
612 gMC->Gsvolu("YBU2", "TUBE", idtmed[1755], tpar, 3);
615 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
618 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
621 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
624 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
627 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
633 gMC->Gsvolu("YBM2", "TUBE", idtmed[1755], tpar, 3);
635 for (Int_t i=0; i<7; i++) {
636 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
641 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
644 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
652 gMC->Gsvolu("YFM2", "TUBE", idtmed[1755], tpar, 3);
654 tpar[0]=rF2-d_flange;
657 gMC->Gsvolu("YF21", "TUBE", idtmed[1758], tpar, 3);
658 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
661 tpar[1]=rF2-d_flange;
663 gMC->Gsvolu("YF22", "TUBE", idtmed[1758], tpar, 3);
665 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
667 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
670 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
674 // pipe between flange and bellows
677 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
678 gMC->Gsvolu("YPF2", "TUBE", idtmed[1758], tpar, 3);
679 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
680 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
681 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
682 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
685 // 4th section: rear shield and closing cone
690 dl=(zvac12-zvac9)/2.;
696 par4[6] = -dl+(zvac10-zvac9);
697 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(theta_open3);
704 par4[12] = -dl+(zvac11-zvac9);
705 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(theta_open3);
712 par4[18] = -dl+(zvac12-zvac9);
716 gMC->Gsvolu("YGO4", "PCON", idtmed[1760], par4, 21);
717 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
720 gMC->Gsvolu("YMO4", "PCON", idtmed[1755], par4, 21);
721 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
725 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., DZ, 0, "ONLY");
728 // Closing concrete cone
730 cpar[0]=(zvac12-zvac11)/2.;
731 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(theta_open3);
732 cpar[2] = cpar[1]+0.001;
735 gMC->Gsvolu("YCC4", "CONE", idtmed[1752], cpar, 5);
737 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
744 tpar[2]=(zvac10-zvac9)/2.;
745 gMC->Gsvolu("YS41", "TUBE", idtmed[1718], tpar, 3);
747 gMC->Gspos("YS41", 1, "YGO4", 0., 0., dz, 0, "ONLY");
753 gMC->Gsvolu("YS42", "TUBE", idtmed[1718], tpar, 3);
755 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
758 tpar[0]=R41-dRSteel2;
760 tpar[2]=(zvac11-zvac10-4)/2.;
761 gMC->Gsvolu("YS43", "TUBE", idtmed[1718], tpar, 3);
763 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
769 tpar[2]=(zvac11-zvac10)/2.;
770 gMC->Gsvolu("YPBI", "TUBE", idtmed[1752], tpar, 3);
772 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
776 tpar[2]=(zvac11-zvac10)/2.;
777 gMC->Gsvolu("YPBO", "TUBE", idtmed[1712], tpar, 3);
778 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
786 tpar[2]=(zvac12-zvac11)/2.;
787 gMC->Gsvolu("YFEI", "TUBE", idtmed[1749], tpar, 3);
789 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
794 gMC->Gsvolu("YFEO", "TUBE", idtmed[1709], tpar, 3);
795 dz=-(zvac12-zvac11)/2.+tpar[2];
796 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
799 // 4th section: vacuum system
801 // up to closing cone
802 cpar0[0]=(zvac11-zvac9)/2;
805 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(theta_open3);
806 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(theta_open3);
807 gMC->Gsvolu("YV31", "CONE", idtmed[1758], cpar0, 5);
811 cpar[1]=cpar0[1]+d_tube;
812 cpar[2]=cpar0[1]+d_tube+d_insu;
813 cpar[3]=cpar0[3]+d_tube;
814 cpar[4]=cpar0[3]+d_tube+d_insu;
815 gMC->Gsvolu("YI31", "CONE", idtmed[1753], cpar, 5);
816 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
819 cpar[1]=cpar0[2]-d_prot-d_free;
820 cpar[2]=cpar0[2]-d_prot;
821 cpar[3]=cpar0[4]-d_prot-d_free;
822 cpar[4]=cpar0[4]-d_prot;
823 gMC->Gsvolu("YP31", "CONE", idtmed[1755], cpar, 5);
824 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
827 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
830 cpar0[0]=(zvac12-zvac11)/2;
831 cpar0[1]=r3-d_vacu+(zvac11-zvac9)*TMath::Tan(theta_open3);
832 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(theta_open3);
835 gMC->Gsvolu("YV32", "CONE", idtmed[1758], cpar0, 5);
839 cpar[1]=cpar0[1]+d_tube;
840 cpar[2]=cpar0[1]+d_tube+d_insu;
841 cpar[3]=cpar0[3]+d_tube;
842 cpar[4]=cpar0[3]+d_tube+d_insu;
843 gMC->Gsvolu("YI32", "CONE", idtmed[1753], cpar, 5);
844 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
847 cpar[1]=cpar0[2]-d_prot-d_free;
848 cpar[2]=cpar0[2]-d_prot;
849 cpar[3]=cpar0[4]-d_prot-d_free;
850 cpar[4]=cpar0[4]-d_prot;
851 gMC->Gsvolu("YP32", "CONE", idtmed[1755], cpar, 5);
852 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
855 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
862 tpar[2] = (zfil_out - zfil_in) / 2.;
863 gMC->Gsvolu("YFIM", "TUBE", idtmed[1749], tpar, 3);
864 dz = (zfil_in + zfil_out) / 2.;
866 gMC->Gsvolu("YFII","TUBE", idtmed[1709], tpar, 3);
867 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
868 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
870 // Shielding close to chamber
873 cpar[0]=(zch1-dzch-1.-abs_l)/2.;
875 cpar[2]=abs_l*TMath::Tan(acc_min);
877 cpar[4]=(abs_l+2.*cpar[0])*TMath::Tan(acc_min);
878 gMC->Gsvolu("YCS1", "CONE", idtmed[1720], cpar, 5);
880 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
882 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
884 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(acc_min);
887 gMC->Gsvolu("YCS2", "CONE", idtmed[1720], cpar, 5);
889 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
892 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
894 cpar[2]=zvac4*TMath::Tan(acc_min);
896 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(acc_min);
897 gMC->Gsvolu("YCS3", "CONE", idtmed[1720], cpar, 5);
899 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
902 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
904 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(acc_min);
906 cpar[4]=zvac6*TMath::Tan(acc_min);
907 gMC->Gsvolu("YCS4", "CONE", idtmed[1720], cpar, 5);
909 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
913 void AliSHILv0::Init()
916 // Initialise the muon shield after it has been built
921 for(i=0;i<35;i++) printf("*");
922 printf(" SHILv0_INIT ");
923 for(i=0;i<35;i++) printf("*");
926 // Here the SHIL initialisation code (if any!)
927 for(i=0;i<80;i++) printf("*");