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 1.6 2000/06/13 15:01:38 morsch
19 Make kind of heavy shielding material (Pb, NiCuW) dependent on presence of outer cone.
21 Revision 1.5 2000/06/12 19:40:00 morsch
22 New structure of beam pipe and heating jacket.
23 Optional outer Pb cone added. Not yet compatible with chamber inner radii.
25 Revision 1.4 2000/04/03 08:13:40 fca
26 Introduce extra scope for non ANSI compliant C++ compilers
28 Revision 1.3 2000/01/17 10:29:30 morsch
29 Overlap between Shield and Absorber due to limited numerical precision removed
30 by displacing the Shield by epsilon = 0.01 cm.
32 Revision 1.2 2000/01/13 11:27:51 morsch
33 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
35 Revision 1.1 2000/01/12 15:44:03 morsch
36 Standard version of SHIL
40 ///////////////////////////////////////////////////////////////////////////////
42 // Muon Shield Class //
43 // This class contains a description of the muon shield //
47 <img src="picts/AliSHILClass.gif">
52 ///////////////////////////////////////////////////////////////////////////////
54 #include "AliSHILv0.h"
60 //_____________________________________________________________________________
61 AliSHILv0::AliSHILv0()
64 // Default constructor for muon shield
68 //_____________________________________________________________________________
69 AliSHILv0::AliSHILv0(const char *name, const char *title)
73 // Standard constructor for muon shield
78 // Pb cone not yet compatible with muon chamber inner radii
79 // Switched off by default
83 //_____________________________________________________________________________
84 void AliSHILv0::CreateGeometry()
87 // Build muon shield geometry
92 <img src="picts/AliSHILv0.gif">
97 <img src="picts/AliSHILv0Tree.gif">
101 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[27], par3[27],
105 Int_t *idtmed = fIdtmed->GetArray()-1699;
107 #include "ABSOSHILConst.h"
108 #include "SHILConst.h"
110 enum {kC=1705, kAl=1708, kFe=1709, kCu=1710, kW=1711, kPb=1712,
111 kNiCuW=1720, kVacuum=1714, kAir=1714, kConcrete=1716,
112 kPolyCH2=1717, kSteel=1709, kInsulation=1713};
114 // Material of the rear part of the shield
116 if (fPbCone) iHeavy=kPb;
122 Float_t dRear1=dRear;
124 Float_t zstart=zRear-dRear1;
130 Float_t dl=(zvac12-zstart)/2.;
135 par0[5] = zstart * TMath::Tan(accMin);
137 par0[6] = -dl+dRear1;
139 par0[8] = zRear * TMath::Tan(accMin);
141 par0[9] = -dl+dRear1;
145 par0[12] = -dz+zvac4;
149 par0[15] = -dz+zvac4;
153 par0[18] = -dz+zvac6;
157 par0[21] = -dz+zvac6;
159 par0[23] = zvac6 * TMath::Tan(accMin);
161 par0[24] = -dz+zConeE;
165 par0[27] = -dz+zvac10;
169 par0[30] = -dz+zvac10;
173 par0[33] = -dz+zvac11;
177 par0[36] = -dz+zvac11;
181 par0[39] = -dz+zvac12;
185 gMC->Gsvolu("YMOT", "PCON", idtmed[kVacuum], par0, 42);
187 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
193 // First section: bellows below and behind front absorber
199 dl=(zvac4-zstart)/2.;
202 par1[4] = rAbs+(zstart-zOpen) * TMath::Tan(thetaOpen1);
203 par1[5] = zstart * TMath::Tan(accMin);
205 par1[6] = -dl+zvac1-zstart;
206 par1[7] = rAbs+ (zvac1-zOpen) * TMath::Tan(thetaOpen1);
207 par1[8] = zvac1 * TMath::Tan(accMin);
209 par1[9] = par1[6]+dr11;
210 par1[10] = par1[7]+dr11;
211 par1[11] = (zvac1+dr11) * TMath::Tan(accMin);
213 par1[12] = -dl+dRear1;
215 par1[14] = zRear * TMath::Tan(accMin);
217 par1[15] = -dl+dRear1;
221 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
225 par1[21] = par1[18]+dr12;
226 par1[22] = par1[19]+dr12;
229 par1[24] = par1[21]+dF1;
233 par1[27] = par1[24]+dr12;
234 par1[28] = par1[25]-dr12;
237 par1[30] = par1[27]+dB1;
241 par1[33] = par1[30]+dr13;
242 par1[34] = par1[31]-dr13;
245 par1[36] = -dl+zvac4-zstart;
246 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(thetaOpen2);
250 Float_t rBox=par1[31]-0.1;
252 gMC->Gsvolu("YGO1", "PCON", idtmed[kNiCuW], par1, 39);
253 { // Begin local scope for i
254 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
255 } // End local scope for i
256 gMC->Gsvolu("YMO1", "PCON", idtmed[kVacuum+40], par1, 39);
257 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
259 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
264 tpar[0]=R11-dRSteel1;
267 gMC->Gsvolu("YSE1", "TUBE", idtmed[kNiCuW], tpar, 3);
269 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
271 // 1st section: vacuum system
279 gMC->Gsvolu("YB11", "TUBE", idtmed[kSteel+40], tpar, 3);
284 tpar[2]=(lB1/2.-2.*eB1)/2.;
285 gMC->Gsvolu("YB12", "TUBE", idtmed[kSteel+40], tpar, 3);
291 gMC->Gsvolu("YB13", "TUBE", idtmed[kSteel+40], tpar, 3);
298 gMC->Gsvolu("YBU1", "TUBE", idtmed[kVacuum+40], tpar, 3);
301 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
304 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
307 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
310 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
313 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
319 gMC->Gsvolu("YBM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
321 { // Begin local scope for i
322 for (Int_t i=0; i<10; i++) {
323 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0., dz, 0, "ONLY");
326 } // End local scope for i
327 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
328 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
330 dz=dl-dr13-(zvac4-zvac3)-tpar[2];
331 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
339 gMC->Gsvolu("YFM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
344 gMC->Gsvolu("YF11", "TUBE", idtmed[kSteel+40], tpar, 3);
345 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
350 gMC->Gsvolu("YF12", "TUBE", idtmed[kSteel+40], tpar, 3);
352 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
354 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
356 dz=-dl+(zvac2-zstart);
357 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
360 // pipe between flange and bellows
363 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
364 gMC->Gsvolu("YPF1", "TUBE", idtmed[kSteel+40], tpar, 3);
366 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
367 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
368 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
369 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
371 // pipe and heating jackets outside bellows
374 cpar0[0]=(zvac1-zstart)/2;
375 cpar0[1]=rVacu+(zstart-zOpen)*TMath::Tan(thetaOpen1)-0.05;
376 cpar0[2]=rAbs +(zstart-zOpen)*TMath::Tan(thetaOpen1);
377 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
378 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
379 gMC->Gsvolu("YV11", "CONE", idtmed[kSteel+40], cpar0, 5);
384 cpar[1]=cpar0[1]+0.15;
385 cpar[2]=cpar0[1]+0.65;
386 cpar[3]=cpar0[3]+0.15;
387 cpar[4]=cpar0[3]+0.65;
388 gMC->Gsvolu("YI11", "CONE", idtmed[kInsulation+40], cpar, 5);
389 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
392 cpar[1]=cpar0[1]+0.75;
393 cpar[2]=cpar0[1]+1.25;
394 cpar[3]=cpar0[3]+0.75;
395 cpar[4]=cpar0[3]+1.25;
396 gMC->Gsvolu("YP11", "CONE", idtmed[kVacuum+40], cpar, 5);
397 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
400 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
405 cpar0[0]=(zvac4-zvac3)/2;
407 cpar0[2]=cpar0[1]+dVacuS;
409 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
410 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
411 gMC->Gsvolu("YV12", "CONE", idtmed[kSteel], cpar0, 5);
412 Float_t r2V=cpar0[3];
416 cpar[1]=cpar0[1]+dTubeS;
417 cpar[2]=cpar0[1]+dTubeS+dInsuS;
418 cpar[3]=cpar0[3]+dTubeS;
419 cpar[4]=cpar0[3]+dTubeS+dInsuS;
420 gMC->Gsvolu("YI12", "CONE", idtmed[kInsulation], cpar, 5);
421 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
425 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
426 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
427 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
428 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
429 gMC->Gsvolu("YP12", "CONE", idtmed[kAir], cpar, 5);
430 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
433 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
436 // Between first and second bellow section
445 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(thetaOpen2);
452 par2[9] = -dl+(zvac6-zvac4);
453 par2[10] = r2+(zvac6-zvac3) * TMath::Tan(thetaOpen2);
456 par2[12] = -dl+(zvac6-zvac4);
458 par2[14] = zvac6*TMath::Tan(accMin);
460 // Start of Pb section
461 par2[15] = -dl+(zPb-zvac4);
462 par2[16] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
463 par2[17] = zPb*TMath::Tan(accMin);
466 // end of cone following 2 deg line
467 par2[18] = -dl+(zConeE-zvac4);
468 par2[19] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
471 par2[21] = -dl+(zvac7-zvac4);
472 par2[22] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
476 gMC->Gsvolu("YGO2", "PCON", idtmed[iHeavy+40], par2, 24);
478 // Lead cone option replacing Tungsten
484 Float_t dlPb=(zvac7-zPb)/2.;
488 parPb[5] = zPb*TMath::Tan(accMin);
490 parPb[6] = -dlPb+(zConeE-zPb);
491 parPb[7] = parPb[4]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
495 parPb[10] = parPb[7]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
497 gMC->Gsvolu("YXO2", "PCON", idtmed[kPb], parPb, 12);
498 gMC->Gspos("YXO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
500 { // Begin local scope for i
501 for (Int_t i=4; i<23; i+=3) par2[i] = 0;
502 } // End local scope for i
504 gMC->Gsvolu("YMO2", "PCON", idtmed[kVacuum+40], par2, 24);
505 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
507 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
512 tpar[0]=R11-dRSteel1;
515 gMC->Gsvolu("YS21", "TUBE", idtmed[kSteel], tpar, 3);
517 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
519 tpar[0]=R21-dRSteel2;
521 tpar[2]=(zvac6-zvac5)/2.;
522 gMC->Gsvolu("YS22", "TUBE", idtmed[kSteel], tpar, 3);
524 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
528 cpar[1]=R21-dRSteel2;
529 cpar[2]=zvac6 * TMath::Tan(accMin);
531 cpar[4]=cpar[2]+4.*TMath::Tan(accMin);
533 gMC->Gsvolu("YS23", "CONE", idtmed[kSteel], cpar, 5);
535 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
538 cpar[0]=(zPb-zvac6-4.)/2;
540 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
541 cpar[1]=cpar[2]-dRSteel2;
542 cpar[3]=cpar[4]-dRSteel2;
544 gMC->Gsvolu("YS24", "CONE", idtmed[kSteel], cpar, 5);
546 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
549 cpar[0]=(zConeE-zPb)/2;
551 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
552 cpar[1]=cpar[2]-dRSteel2;
553 cpar[3]=cpar[4]-dRSteel2;
555 gMC->Gsvolu("YS25", "CONE", idtmed[kSteel], cpar, 5);
557 gMC->Gspos("YS25", 1, "YXO2", 0., 0., dz, 0, "ONLY");
562 tpar[2]=(zvac7-zConeE)/2.;
564 gMC->Gsvolu("YS26", "TUBE", idtmed[kSteel], tpar, 3);
566 gMC->Gspos("YS26", 1, "YXO2", 0., 0., dz, 0, "ONLY");
570 // 2nd section: vacuum system
572 cpar0[0]=(zvac7-zvac4)/2;
575 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
576 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
577 gMC->Gsvolu("YV21", "CONE", idtmed[kSteel+40], cpar0, 5);
581 cpar[1]=cpar0[1]+dTubeS;
582 cpar[2]=cpar0[1]+dTubeS+dInsuS;
583 cpar[3]=cpar0[3]+dTubeS;
584 cpar[4]=cpar0[3]+dTubeS+dInsuS;
585 gMC->Gsvolu("YI21", "CONE", idtmed[kInsulation+40], cpar, 5);
586 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
589 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
590 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
591 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
592 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
593 gMC->Gsvolu("YP21", "CONE", idtmed[kAir+40], cpar, 5);
594 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
597 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
601 // Third Section: Bellows and Flange
609 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
613 par3[7] = par3[4]+dr21;
616 par3[9] = par3[6]+dB2;
620 par3[12] = par3[9]+dr22;
621 par3[13] = par3[10]+dr22;
624 par3[15] = par3[12]+dF2;
628 par3[18] = par3[15]+dr22;
629 par3[19] = par3[16]-dr22;
632 par3[21] = par3[18]+dB2;
636 par3[24] = par3[21]+dr23;
637 par3[25] = par3[22]-dr23;
643 gMC->Gsvolu("YGO3", "PCON", idtmed[iHeavy+40], par3, 27);
646 parPb[1] = parPb[10];
648 parPb[3] = parPb[1]+2.*dl*TMath::Tan(thetaOpenPb);
650 gMC->Gsvolu("YXO3", "CONE", idtmed[kPb], parPb, 5);
651 gMC->Gspos("YXO3", 1, "YGO3", 0., 0., 0., 0, "ONLY");
652 { // Begin local scope for i
653 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
654 } // End local scope for i
655 gMC->Gsvolu("YMO3", "PCON", idtmed[kVacuum+40], par3, 27);
656 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
663 gMC->Gsvolu("YS31", "TUBE", idtmed[kSteel], tpar, 3);
664 gMC->Gspos("YS31", 1, "YXO3", 0., 0., 0., 0, "ONLY");
666 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
670 // 3rd section: vacuum system
678 gMC->Gsvolu("YB21", "TUBE", idtmed[kSteel+40], tpar, 3);
683 tpar[2]=(lB2/2.-2.*eB2)/2.;
684 gMC->Gsvolu("YB22", "TUBE", idtmed[kSteel+40], tpar, 3);
690 gMC->Gsvolu("YB23", "TUBE", idtmed[kSteel+40], tpar, 3);
697 gMC->Gsvolu("YBU2", "TUBE", idtmed[kVacuum+40], tpar, 3);
700 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
703 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
706 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
709 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
712 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
718 gMC->Gsvolu("YBM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
720 { // Begin local scope for i
721 for (Int_t i=0; i<7; i++) {
722 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
725 } // End local scope for i
727 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
730 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
738 gMC->Gsvolu("YFM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
743 gMC->Gsvolu("YF21", "TUBE", idtmed[kSteel+40], tpar, 3);
744 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
749 gMC->Gsvolu("YF22", "TUBE", idtmed[kSteel+40], tpar, 3);
751 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
753 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
756 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
760 // pipe between flange and bellows
763 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
764 gMC->Gsvolu("YPF2", "TUBE", idtmed[kSteel+40], tpar, 3);
765 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
766 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
767 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
768 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
771 // 4th section: rear shield and closing cone
776 dl=(zvac12-zvac9)/2.;
782 par4[6] = -dl+(zvac10-zvac9);
783 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(thetaOpen3);
790 par4[12] = -dl+(zvac11-zvac9);
791 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
798 par4[18] = -dl+(zvac12-zvac9);
802 gMC->Gsvolu("YGO4", "PCON", idtmed[iHeavy+40], par4, 21);
804 parPb[0] = (zvac10-zvac9)/2.;
807 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
809 gMC->Gsvolu("YXO4", "CONE", idtmed[kPb], parPb, 5);
810 gMC->Gspos("YXO4", 1, "YGO4", 0., 0., -dl+parPb[0], 0, "ONLY");
812 parPb[0] = (zvac12-zvac10)/2.;
815 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
817 gMC->Gsvolu("YXO5", "CONE", idtmed[kPb], parPb, 5);
818 gMC->Gspos("YXO5", 1, "YGO4", 0., 0., -dl+(zvac10-zvac9)+parPb[0], 0, "ONLY");
819 { // Begin local scope for i
820 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
821 } // End local scope for i
823 gMC->Gsvolu("YMO4", "PCON", idtmed[kVacuum+40], par4, 21);
824 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
829 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
832 // Closing concrete cone
834 cpar[0]=(zvac12-zvac11)/2.;
835 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
836 cpar[2] = cpar[1]+0.001;
839 gMC->Gsvolu("YCC4", "CONE", idtmed[kConcrete+40], cpar, 5);
841 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
848 tpar[2]=(zvac10-zvac9)/2.;
849 gMC->Gsvolu("YS41", "TUBE", idtmed[kSteel], tpar, 3);
851 gMC->Gspos("YS41", 1, "YXO4", 0., 0., 0., 0, "ONLY");
857 gMC->Gsvolu("YS42", "TUBE", idtmed[kSteel], tpar, 3);
859 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
862 tpar[0]=R41-dRSteel2;
864 tpar[2]=(zvac11-zvac10)/2.;
865 gMC->Gsvolu("YS43", "TUBE", idtmed[kSteel], tpar, 3);
867 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
873 tpar[2]=(zvac11-zvac10)/2.;
874 gMC->Gsvolu("YPBI", "TUBE", idtmed[kPb+40], tpar, 3);
876 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
880 tpar[2]=(zvac11-zvac10)/2.;
881 gMC->Gsvolu("YPBO", "TUBE", idtmed[kPb], tpar, 3);
882 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
890 tpar[2]=(zvac12-zvac11)/2.;
891 gMC->Gsvolu("YFEI", "TUBE", idtmed[kFe+40], tpar, 3);
893 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
898 gMC->Gsvolu("YFEO", "TUBE", idtmed[kFe], tpar, 3);
899 dz=-(zvac12-zvac11)/2.+tpar[2];
900 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
907 gMC->Gsvolu("YAEM", "TUBE", idtmed[kAir], tpar, 3);
911 gMC->Gsvolu("YFEM", "TUBE", idtmed[kFe], tpar, 3);
912 gMC->Gspos("YFEM", 1, "YAEM", 0., 0., 0., 0, "ONLY");
917 gMC->Gspos("YAEM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
922 // 4th section: vacuum system
924 // up to closing cone
925 cpar0[0]=(zvac11-zvac9)/2;
928 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
929 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
930 gMC->Gsvolu("YV31", "CONE", idtmed[kSteel+40], cpar0, 5);
934 cpar[1]=cpar0[1]+dTubeS;
935 cpar[2]=cpar0[1]+dTubeS+dInsuS;
936 cpar[3]=cpar0[3]+dTubeS;
937 cpar[4]=cpar0[3]+dTubeS+dInsuS;
938 gMC->Gsvolu("YI31", "CONE", idtmed[kInsulation+40], cpar, 5);
939 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
942 cpar[1]=cpar0[2]-dProtS-dFreeS;
943 cpar[2]=cpar0[2]-dProtS;
944 cpar[3]=cpar0[4]-dProtS-dFreeS;
945 cpar[4]=cpar0[4]-dProtS;
946 gMC->Gsvolu("YP31", "CONE", idtmed[kVacuum+40], cpar, 5);
947 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
950 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
953 cpar0[0]=(zvac12-zvac11)/2;
954 cpar0[1]=r3-dVacuS+(zvac11-zvac9)*TMath::Tan(thetaOpen3);
955 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(thetaOpen3);
958 gMC->Gsvolu("YV32", "CONE", idtmed[kSteel+40], cpar0, 5);
962 cpar[1]=cpar0[1]+dTubeS;
963 cpar[2]=cpar0[1]+dTubeS+dInsuS;
964 cpar[3]=cpar0[3]+dTubeS;
965 cpar[4]=cpar0[3]+dTubeS+dInsuS;
966 gMC->Gsvolu("YI32", "CONE", idtmed[kInsulation+40], cpar, 5);
967 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
970 cpar[1]=cpar0[2]-dProtS-dFreeS;
971 cpar[2]=cpar0[2]-dProtS;
972 cpar[3]=cpar0[4]-dProtS-dFreeS;
973 cpar[4]=cpar0[4]-dProtS;
974 gMC->Gsvolu("YP32", "CONE", idtmed[kVacuum+40], cpar, 5);
975 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
978 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
985 tpar[2] = (zFilterOut - zFilterIn) / 2.;
986 gMC->Gsvolu("YFIM", "TUBE", idtmed[kFe+40], tpar, 3);
987 dz = (zFilterIn + zFilterOut) / 2.;
989 gMC->Gsvolu("YFII","TUBE", idtmed[kFe], tpar, 3);
990 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
991 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
993 // Shielding close to chamber
995 cpar[0]=(zch1-dzch-1.-zRear)/2.;
997 cpar[2]=zRear*TMath::Tan(accMin);
999 cpar[4]=(zRear+2.*cpar[0])*TMath::Tan(accMin);
1000 gMC->Gsvolu("YCS1", "CONE", idtmed[kNiCuW], cpar, 5);
1002 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1004 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
1006 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(accMin);
1009 gMC->Gsvolu("YCS2", "CONE", idtmed[kNiCuW], cpar, 5);
1011 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1015 cpar[2]=(zch1-dzch+1.)*TMath::Tan(accMin);
1017 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1018 gMC->Gsvolu("YCS3", "CONE", idtmed[kNiCuW], cpar, 5);
1020 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1023 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
1025 cpar[2]=zvac4*TMath::Tan(accMin);
1027 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(accMin);
1028 gMC->Gsvolu("YCS4", "CONE", idtmed[kNiCuW], cpar, 5);
1030 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1033 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
1035 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(accMin);
1037 cpar[4]=zvac6*TMath::Tan(accMin);
1038 gMC->Gsvolu("YCS5", "CONE", idtmed[kNiCuW], cpar, 5);
1040 gMC->Gspos("YCS5", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1044 cpar[2]=(zch2-dzch+1.)*TMath::Tan(accMin);
1046 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1047 gMC->Gsvolu("YCS6", "CONE", idtmed[kNiCuW], cpar, 5);
1049 gMC->Gspos("YCS6", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1053 cpar[0]=(zFilterIn-zConeE)/2.;
1057 cpar[4]=30.+2.*cpar[0]*TMath::Tan(thetaOpenPbO);
1059 gMC->Gsvolu("YOPB", "CONE", idtmed[kPb], cpar, 5);
1061 gMC->Gspos("YOPB", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1065 void AliSHILv0::Init()
1068 // Initialise the muon shield after it has been built
1073 for(i=0;i<35;i++) printf("*");
1074 printf(" SHILv0_INIT ");
1075 for(i=0;i<35;i++) printf("*");
1078 // Here the SHIL initialisation code (if any!)
1079 for(i=0;i<80;i++) printf("*");