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 1.5 2000/06/12 19:40:00 morsch
19 New structure of beam pipe and heating jacket.
20 Optional outer Pb cone added. Not yet compatible with chamber inner radii.
22 Revision 1.4 2000/04/03 08:13:40 fca
23 Introduce extra scope for non ANSI compliant C++ compilers
25 Revision 1.3 2000/01/17 10:29:30 morsch
26 Overlap between Shield and Absorber due to limited numerical precision removed
27 by displacing the Shield by epsilon = 0.01 cm.
29 Revision 1.2 2000/01/13 11:27:51 morsch
30 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
32 Revision 1.1 2000/01/12 15:44:03 morsch
33 Standard version of SHIL
37 ///////////////////////////////////////////////////////////////////////////////
39 // Muon Shield Class //
40 // This class contains a description of the muon shield //
44 <img src="picts/AliSHILClass.gif">
49 ///////////////////////////////////////////////////////////////////////////////
51 #include "AliSHILv0.h"
57 //_____________________________________________________________________________
58 AliSHILv0::AliSHILv0()
61 // Default constructor for muon shield
65 //_____________________________________________________________________________
66 AliSHILv0::AliSHILv0(const char *name, const char *title)
70 // Standard constructor for muon shield
75 // Pb cone not yet compatible with muon chamber inner radii
76 // Switched off by default
80 //_____________________________________________________________________________
81 void AliSHILv0::CreateGeometry()
84 // Build muon shield geometry
89 <img src="picts/AliSHILv0.gif">
94 <img src="picts/AliSHILv0Tree.gif">
98 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[27], par3[27],
102 Int_t *idtmed = fIdtmed->GetArray()-1699;
104 #include "ABSOSHILConst.h"
105 #include "SHILConst.h"
107 typedef enum {kC=1705, kAl=1708, kFe=1709, kCu=1710, kW=1711, kPb=1712,
108 kNiCuW=1720, kVacuum=1714, kAir=1714, kConcrete=1716,
109 kPolyCH2=1717, kSteel=1709, kInsulation=1713};
111 // Material of the rear part of the shield
113 if (fPbCone) iHeavy=kPb;
119 Float_t dRear1=dRear;
121 Float_t zstart=zRear-dRear1;
127 Float_t dl=(zvac12-zstart)/2.;
132 par0[5] = zstart * TMath::Tan(accMin);
134 par0[6] = -dl+dRear1;
136 par0[8] = zRear * TMath::Tan(accMin);
138 par0[9] = -dl+dRear1;
142 par0[12] = -dz+zvac4;
146 par0[15] = -dz+zvac4;
150 par0[18] = -dz+zvac6;
154 par0[21] = -dz+zvac6;
156 par0[23] = zvac6 * TMath::Tan(accMin);
158 par0[24] = -dz+zConeE;
162 par0[27] = -dz+zvac10;
166 par0[30] = -dz+zvac10;
170 par0[33] = -dz+zvac11;
174 par0[36] = -dz+zvac11;
178 par0[39] = -dz+zvac12;
182 gMC->Gsvolu("YMOT", "PCON", idtmed[kVacuum], par0, 42);
184 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
190 // First section: bellows below and behind front absorber
196 dl=(zvac4-zstart)/2.;
199 par1[4] = rAbs+(zstart-zOpen) * TMath::Tan(thetaOpen1);
200 par1[5] = zstart * TMath::Tan(accMin);
202 par1[6] = -dl+zvac1-zstart;
203 par1[7] = rAbs+ (zvac1-zOpen) * TMath::Tan(thetaOpen1);
204 par1[8] = zvac1 * TMath::Tan(accMin);
206 par1[9] = par1[6]+dr11;
207 par1[10] = par1[7]+dr11;
208 par1[11] = (zvac1+dr11) * TMath::Tan(accMin);
210 par1[12] = -dl+dRear1;
212 par1[14] = zRear * TMath::Tan(accMin);
214 par1[15] = -dl+dRear1;
218 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
222 par1[21] = par1[18]+dr12;
223 par1[22] = par1[19]+dr12;
226 par1[24] = par1[21]+dF1;
230 par1[27] = par1[24]+dr12;
231 par1[28] = par1[25]-dr12;
234 par1[30] = par1[27]+dB1;
238 par1[33] = par1[30]+dr13;
239 par1[34] = par1[31]-dr13;
242 par1[36] = -dl+zvac4-zstart;
243 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(thetaOpen2);
247 Float_t rBox=par1[31]-0.1;
249 gMC->Gsvolu("YGO1", "PCON", idtmed[kNiCuW], par1, 39);
250 { // Begin local scope for i
251 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
252 } // End local scope for i
253 gMC->Gsvolu("YMO1", "PCON", idtmed[kVacuum+40], par1, 39);
254 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
256 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
261 tpar[0]=R11-dRSteel1;
264 gMC->Gsvolu("YSE1", "TUBE", idtmed[kNiCuW], tpar, 3);
266 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
268 // 1st section: vacuum system
276 gMC->Gsvolu("YB11", "TUBE", idtmed[kSteel+40], tpar, 3);
281 tpar[2]=(lB1/2.-2.*eB1)/2.;
282 gMC->Gsvolu("YB12", "TUBE", idtmed[kSteel+40], tpar, 3);
288 gMC->Gsvolu("YB13", "TUBE", idtmed[kSteel+40], tpar, 3);
295 gMC->Gsvolu("YBU1", "TUBE", idtmed[kVacuum+40], tpar, 3);
298 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
301 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
304 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
307 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
310 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
316 gMC->Gsvolu("YBM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
318 { // Begin local scope for i
319 for (Int_t i=0; i<10; i++) {
320 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0., dz, 0, "ONLY");
323 } // End local scope for i
324 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
325 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
327 dz=dl-dr13-(zvac4-zvac3)-tpar[2];
328 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
336 gMC->Gsvolu("YFM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
341 gMC->Gsvolu("YF11", "TUBE", idtmed[kSteel+40], tpar, 3);
342 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
347 gMC->Gsvolu("YF12", "TUBE", idtmed[kSteel+40], tpar, 3);
349 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
351 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
353 dz=-dl+(zvac2-zstart);
354 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
357 // pipe between flange and bellows
360 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
361 gMC->Gsvolu("YPF1", "TUBE", idtmed[kSteel+40], tpar, 3);
363 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
364 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
365 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
366 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
368 // pipe and heating jackets outside bellows
371 cpar0[0]=(zvac1-zstart)/2;
372 cpar0[1]=rVacu+(zstart-zOpen)*TMath::Tan(thetaOpen1)-0.05;
373 cpar0[2]=rAbs +(zstart-zOpen)*TMath::Tan(thetaOpen1);
374 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
375 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
376 gMC->Gsvolu("YV11", "CONE", idtmed[kSteel+40], cpar0, 5);
381 cpar[1]=cpar0[1]+0.15;
382 cpar[2]=cpar0[1]+0.65;
383 cpar[3]=cpar0[3]+0.15;
384 cpar[4]=cpar0[3]+0.65;
385 gMC->Gsvolu("YI11", "CONE", idtmed[kInsulation+40], cpar, 5);
386 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
389 cpar[1]=cpar0[1]+0.75;
390 cpar[2]=cpar0[1]+1.25;
391 cpar[3]=cpar0[3]+0.75;
392 cpar[4]=cpar0[3]+1.25;
393 gMC->Gsvolu("YP11", "CONE", idtmed[kVacuum+40], cpar, 5);
394 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
397 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
402 cpar0[0]=(zvac4-zvac3)/2;
404 cpar0[2]=cpar0[1]+dVacuS;
406 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
407 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
408 gMC->Gsvolu("YV12", "CONE", idtmed[kSteel], cpar0, 5);
409 Float_t r2V=cpar0[3];
413 cpar[1]=cpar0[1]+dTubeS;
414 cpar[2]=cpar0[1]+dTubeS+dInsuS;
415 cpar[3]=cpar0[3]+dTubeS;
416 cpar[4]=cpar0[3]+dTubeS+dInsuS;
417 gMC->Gsvolu("YI12", "CONE", idtmed[kInsulation], cpar, 5);
418 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
422 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
423 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
424 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
425 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
426 gMC->Gsvolu("YP12", "CONE", idtmed[kAir], cpar, 5);
427 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
430 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
433 // Between first and second bellow section
442 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(thetaOpen2);
449 par2[9] = -dl+(zvac6-zvac4);
450 par2[10] = r2+(zvac6-zvac3) * TMath::Tan(thetaOpen2);
453 par2[12] = -dl+(zvac6-zvac4);
455 par2[14] = zvac6*TMath::Tan(accMin);
457 // Start of Pb section
458 par2[15] = -dl+(zPb-zvac4);
459 par2[16] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
460 par2[17] = zPb*TMath::Tan(accMin);
463 // end of cone following 2 deg line
464 par2[18] = -dl+(zConeE-zvac4);
465 par2[19] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
468 par2[21] = -dl+(zvac7-zvac4);
469 par2[22] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
473 gMC->Gsvolu("YGO2", "PCON", idtmed[iHeavy+40], par2, 24);
475 // Lead cone option replacing Tungsten
481 Float_t dlPb=(zvac7-zPb)/2.;
485 parPb[5] = zPb*TMath::Tan(accMin);
487 parPb[6] = -dlPb+(zConeE-zPb);
488 parPb[7] = parPb[4]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
492 parPb[10] = parPb[7]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
494 gMC->Gsvolu("YXO2", "PCON", idtmed[kPb], parPb, 12);
495 gMC->Gspos("YXO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
497 { // Begin local scope for i
498 for (Int_t i=4; i<23; i+=3) par2[i] = 0;
499 } // End local scope for i
501 gMC->Gsvolu("YMO2", "PCON", idtmed[kVacuum+40], par2, 24);
502 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
504 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
509 tpar[0]=R11-dRSteel1;
512 gMC->Gsvolu("YS21", "TUBE", idtmed[kSteel], tpar, 3);
514 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
516 tpar[0]=R21-dRSteel2;
518 tpar[2]=(zvac6-zvac5)/2.;
519 gMC->Gsvolu("YS22", "TUBE", idtmed[kSteel], tpar, 3);
521 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
525 cpar[1]=R21-dRSteel2;
526 cpar[2]=zvac6 * TMath::Tan(accMin);
528 cpar[4]=cpar[2]+4.*TMath::Tan(accMin);
530 gMC->Gsvolu("YS23", "CONE", idtmed[kSteel], cpar, 5);
532 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
535 cpar[0]=(zPb-zvac6-4.)/2;
537 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
538 cpar[1]=cpar[2]-dRSteel2;
539 cpar[3]=cpar[4]-dRSteel2;
541 gMC->Gsvolu("YS24", "CONE", idtmed[kSteel], cpar, 5);
543 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
546 cpar[0]=(zConeE-zPb)/2;
548 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
549 cpar[1]=cpar[2]-dRSteel2;
550 cpar[3]=cpar[4]-dRSteel2;
552 gMC->Gsvolu("YS25", "CONE", idtmed[kSteel], cpar, 5);
554 gMC->Gspos("YS25", 1, "YXO2", 0., 0., dz, 0, "ONLY");
559 tpar[2]=(zvac7-zConeE)/2.;
561 gMC->Gsvolu("YS26", "TUBE", idtmed[kSteel], tpar, 3);
563 gMC->Gspos("YS26", 1, "YXO2", 0., 0., dz, 0, "ONLY");
567 // 2nd section: vacuum system
569 cpar0[0]=(zvac7-zvac4)/2;
572 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
573 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
574 gMC->Gsvolu("YV21", "CONE", idtmed[kSteel+40], cpar0, 5);
578 cpar[1]=cpar0[1]+dTubeS;
579 cpar[2]=cpar0[1]+dTubeS+dInsuS;
580 cpar[3]=cpar0[3]+dTubeS;
581 cpar[4]=cpar0[3]+dTubeS+dInsuS;
582 gMC->Gsvolu("YI21", "CONE", idtmed[kInsulation+40], cpar, 5);
583 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
586 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
587 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
588 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
589 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
590 gMC->Gsvolu("YP21", "CONE", idtmed[kAir+40], cpar, 5);
591 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
594 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
598 // Third Section: Bellows and Flange
606 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
610 par3[7] = par3[4]+dr21;
613 par3[9] = par3[6]+dB2;
617 par3[12] = par3[9]+dr22;
618 par3[13] = par3[10]+dr22;
621 par3[15] = par3[12]+dF2;
625 par3[18] = par3[15]+dr22;
626 par3[19] = par3[16]-dr22;
629 par3[21] = par3[18]+dB2;
633 par3[24] = par3[21]+dr23;
634 par3[25] = par3[22]-dr23;
640 gMC->Gsvolu("YGO3", "PCON", idtmed[iHeavy+40], par3, 27);
643 parPb[1] = parPb[10];
645 parPb[3] = parPb[1]+2.*dl*TMath::Tan(thetaOpenPb);
647 gMC->Gsvolu("YXO3", "CONE", idtmed[kPb], parPb, 5);
648 gMC->Gspos("YXO3", 1, "YGO3", 0., 0., 0., 0, "ONLY");
649 { // Begin local scope for i
650 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
651 } // End local scope for i
652 gMC->Gsvolu("YMO3", "PCON", idtmed[kVacuum+40], par3, 27);
653 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
660 gMC->Gsvolu("YS31", "TUBE", idtmed[kSteel], tpar, 3);
661 gMC->Gspos("YS31", 1, "YXO3", 0., 0., 0., 0, "ONLY");
663 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
667 // 3rd section: vacuum system
675 gMC->Gsvolu("YB21", "TUBE", idtmed[kSteel+40], tpar, 3);
680 tpar[2]=(lB2/2.-2.*eB2)/2.;
681 gMC->Gsvolu("YB22", "TUBE", idtmed[kSteel+40], tpar, 3);
687 gMC->Gsvolu("YB23", "TUBE", idtmed[kSteel+40], tpar, 3);
694 gMC->Gsvolu("YBU2", "TUBE", idtmed[kVacuum+40], tpar, 3);
697 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
700 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
703 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
706 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
709 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
715 gMC->Gsvolu("YBM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
717 { // Begin local scope for i
718 for (Int_t i=0; i<7; i++) {
719 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
722 } // End local scope for i
724 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
727 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
735 gMC->Gsvolu("YFM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
740 gMC->Gsvolu("YF21", "TUBE", idtmed[kSteel+40], tpar, 3);
741 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
746 gMC->Gsvolu("YF22", "TUBE", idtmed[kSteel+40], tpar, 3);
748 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
750 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
753 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
757 // pipe between flange and bellows
760 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
761 gMC->Gsvolu("YPF2", "TUBE", idtmed[kSteel+40], tpar, 3);
762 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
763 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
764 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
765 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
768 // 4th section: rear shield and closing cone
773 dl=(zvac12-zvac9)/2.;
779 par4[6] = -dl+(zvac10-zvac9);
780 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(thetaOpen3);
787 par4[12] = -dl+(zvac11-zvac9);
788 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
795 par4[18] = -dl+(zvac12-zvac9);
799 gMC->Gsvolu("YGO4", "PCON", idtmed[iHeavy+40], par4, 21);
801 parPb[0] = (zvac10-zvac9)/2.;
804 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
806 gMC->Gsvolu("YXO4", "CONE", idtmed[kPb], parPb, 5);
807 gMC->Gspos("YXO4", 1, "YGO4", 0., 0., -dl+parPb[0], 0, "ONLY");
809 parPb[0] = (zvac12-zvac10)/2.;
812 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
814 gMC->Gsvolu("YXO5", "CONE", idtmed[kPb], parPb, 5);
815 gMC->Gspos("YXO5", 1, "YGO4", 0., 0., -dl+(zvac10-zvac9)+parPb[0], 0, "ONLY");
816 { // Begin local scope for i
817 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
818 } // End local scope for i
820 gMC->Gsvolu("YMO4", "PCON", idtmed[kVacuum+40], par4, 21);
821 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
826 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
829 // Closing concrete cone
831 cpar[0]=(zvac12-zvac11)/2.;
832 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
833 cpar[2] = cpar[1]+0.001;
836 gMC->Gsvolu("YCC4", "CONE", idtmed[kConcrete+40], cpar, 5);
838 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
845 tpar[2]=(zvac10-zvac9)/2.;
846 gMC->Gsvolu("YS41", "TUBE", idtmed[kSteel], tpar, 3);
848 gMC->Gspos("YS41", 1, "YXO4", 0., 0., 0., 0, "ONLY");
854 gMC->Gsvolu("YS42", "TUBE", idtmed[kSteel], tpar, 3);
856 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
859 tpar[0]=R41-dRSteel2;
861 tpar[2]=(zvac11-zvac10)/2.;
862 gMC->Gsvolu("YS43", "TUBE", idtmed[kSteel], tpar, 3);
864 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
870 tpar[2]=(zvac11-zvac10)/2.;
871 gMC->Gsvolu("YPBI", "TUBE", idtmed[kPb+40], tpar, 3);
873 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
877 tpar[2]=(zvac11-zvac10)/2.;
878 gMC->Gsvolu("YPBO", "TUBE", idtmed[kPb], tpar, 3);
879 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
887 tpar[2]=(zvac12-zvac11)/2.;
888 gMC->Gsvolu("YFEI", "TUBE", idtmed[kFe+40], tpar, 3);
890 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
895 gMC->Gsvolu("YFEO", "TUBE", idtmed[kFe], tpar, 3);
896 dz=-(zvac12-zvac11)/2.+tpar[2];
897 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
904 gMC->Gsvolu("YAEM", "TUBE", idtmed[kAir], tpar, 3);
908 gMC->Gsvolu("YFEM", "TUBE", idtmed[kFe], tpar, 3);
909 gMC->Gspos("YFEM", 1, "YAEM", 0., 0., 0., 0, "ONLY");
914 gMC->Gspos("YAEM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
919 // 4th section: vacuum system
921 // up to closing cone
922 cpar0[0]=(zvac11-zvac9)/2;
925 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
926 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
927 gMC->Gsvolu("YV31", "CONE", idtmed[kSteel+40], cpar0, 5);
931 cpar[1]=cpar0[1]+dTubeS;
932 cpar[2]=cpar0[1]+dTubeS+dInsuS;
933 cpar[3]=cpar0[3]+dTubeS;
934 cpar[4]=cpar0[3]+dTubeS+dInsuS;
935 gMC->Gsvolu("YI31", "CONE", idtmed[kInsulation+40], cpar, 5);
936 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
939 cpar[1]=cpar0[2]-dProtS-dFreeS;
940 cpar[2]=cpar0[2]-dProtS;
941 cpar[3]=cpar0[4]-dProtS-dFreeS;
942 cpar[4]=cpar0[4]-dProtS;
943 gMC->Gsvolu("YP31", "CONE", idtmed[kVacuum+40], cpar, 5);
944 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
947 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
950 cpar0[0]=(zvac12-zvac11)/2;
951 cpar0[1]=r3-dVacuS+(zvac11-zvac9)*TMath::Tan(thetaOpen3);
952 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(thetaOpen3);
955 gMC->Gsvolu("YV32", "CONE", idtmed[kSteel+40], cpar0, 5);
959 cpar[1]=cpar0[1]+dTubeS;
960 cpar[2]=cpar0[1]+dTubeS+dInsuS;
961 cpar[3]=cpar0[3]+dTubeS;
962 cpar[4]=cpar0[3]+dTubeS+dInsuS;
963 gMC->Gsvolu("YI32", "CONE", idtmed[kInsulation+40], cpar, 5);
964 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
967 cpar[1]=cpar0[2]-dProtS-dFreeS;
968 cpar[2]=cpar0[2]-dProtS;
969 cpar[3]=cpar0[4]-dProtS-dFreeS;
970 cpar[4]=cpar0[4]-dProtS;
971 gMC->Gsvolu("YP32", "CONE", idtmed[kVacuum+40], cpar, 5);
972 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
975 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
982 tpar[2] = (zFilterOut - zFilterIn) / 2.;
983 gMC->Gsvolu("YFIM", "TUBE", idtmed[kFe+40], tpar, 3);
984 dz = (zFilterIn + zFilterOut) / 2.;
986 gMC->Gsvolu("YFII","TUBE", idtmed[kFe], tpar, 3);
987 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
988 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
990 // Shielding close to chamber
992 cpar[0]=(zch1-dzch-1.-zRear)/2.;
994 cpar[2]=zRear*TMath::Tan(accMin);
996 cpar[4]=(zRear+2.*cpar[0])*TMath::Tan(accMin);
997 gMC->Gsvolu("YCS1", "CONE", idtmed[kNiCuW], cpar, 5);
999 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1001 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
1003 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(accMin);
1006 gMC->Gsvolu("YCS2", "CONE", idtmed[kNiCuW], cpar, 5);
1008 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1012 cpar[2]=(zch1-dzch+1.)*TMath::Tan(accMin);
1014 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1015 gMC->Gsvolu("YCS3", "CONE", idtmed[kNiCuW], cpar, 5);
1017 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1020 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
1022 cpar[2]=zvac4*TMath::Tan(accMin);
1024 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(accMin);
1025 gMC->Gsvolu("YCS4", "CONE", idtmed[kNiCuW], cpar, 5);
1027 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1030 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
1032 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(accMin);
1034 cpar[4]=zvac6*TMath::Tan(accMin);
1035 gMC->Gsvolu("YCS5", "CONE", idtmed[kNiCuW], cpar, 5);
1037 gMC->Gspos("YCS5", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1041 cpar[2]=(zch2-dzch+1.)*TMath::Tan(accMin);
1043 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1044 gMC->Gsvolu("YCS6", "CONE", idtmed[kNiCuW], cpar, 5);
1046 gMC->Gspos("YCS6", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1050 cpar[0]=(zFilterIn-zConeE)/2.;
1054 cpar[4]=30.+2.*cpar[0]*TMath::Tan(thetaOpenPbO);
1056 gMC->Gsvolu("YOPB", "CONE", idtmed[kPb], cpar, 5);
1058 gMC->Gspos("YOPB", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1062 void AliSHILv0::Init()
1065 // Initialise the muon shield after it has been built
1070 for(i=0;i<35;i++) printf("*");
1071 printf(" SHILv0_INIT ");
1072 for(i=0;i<35;i++) printf("*");
1075 // Here the SHIL initialisation code (if any!)
1076 for(i=0;i<80;i++) printf("*");