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 1.4 2000/04/03 08:13:40 fca
19 Introduce extra scope for non ANSI compliant C++ compilers
21 Revision 1.3 2000/01/17 10:29:30 morsch
22 Overlap between Shield and Absorber due to limited numerical precision removed
23 by displacing the Shield by epsilon = 0.01 cm.
25 Revision 1.2 2000/01/13 11:27:51 morsch
26 Overlaps corrected: YCS3, YCS4; Inner radius YS21 corrected
28 Revision 1.1 2000/01/12 15:44:03 morsch
29 Standard version of SHIL
33 ///////////////////////////////////////////////////////////////////////////////
35 // Muon Shield Class //
36 // This class contains a description of the muon shield //
40 <img src="picts/AliSHILClass.gif">
45 ///////////////////////////////////////////////////////////////////////////////
47 #include "AliSHILv0.h"
53 //_____________________________________________________________________________
54 AliSHILv0::AliSHILv0()
57 // Default constructor for muon shield
61 //_____________________________________________________________________________
62 AliSHILv0::AliSHILv0(const char *name, const char *title)
66 // Standard constructor for muon shield
71 // Pb cone not yet compatible with muon chamber inner radii
72 // Switched off by default
76 //_____________________________________________________________________________
77 void AliSHILv0::CreateGeometry()
80 // Build muon shield geometry
85 <img src="picts/AliSHILv0.gif">
90 <img src="picts/AliSHILv0Tree.gif">
94 Float_t cpar[5], cpar0[5], tpar[3], par1[39], par2[27], par3[27],
98 Int_t *idtmed = fIdtmed->GetArray()-1699;
100 #include "ABSOSHILConst.h"
101 #include "SHILConst.h"
103 typedef enum {kC=1705, kAl=1708, kFe=1709, kCu=1710, kW=1711, kPb=1712,
104 kNiCuW=1720, kVacuum=1714, kAir=1714, kConcrete=1716,
105 kPolyCH2=1717, kSteel=1709, kInsulation=1713};
110 Float_t dRear1=dRear;
112 Float_t zstart=zRear-dRear1;
118 Float_t dl=(zvac12-zstart)/2.;
123 par0[5] = zstart * TMath::Tan(accMin);
125 par0[6] = -dl+dRear1;
127 par0[8] = zRear * TMath::Tan(accMin);
129 par0[9] = -dl+dRear1;
133 par0[12] = -dz+zvac4;
137 par0[15] = -dz+zvac4;
141 par0[18] = -dz+zvac6;
145 par0[21] = -dz+zvac6;
147 par0[23] = zvac6 * TMath::Tan(accMin);
149 par0[24] = -dz+zConeE;
153 par0[27] = -dz+zvac10;
157 par0[30] = -dz+zvac10;
161 par0[33] = -dz+zvac11;
165 par0[36] = -dz+zvac11;
169 par0[39] = -dz+zvac12;
173 gMC->Gsvolu("YMOT", "PCON", idtmed[kVacuum], par0, 42);
175 gMC->Gspos("YMOT", 1, "ALIC", 0., 0., dz, 0, "ONLY");
181 // First section: bellows below and behind front absorber
187 dl=(zvac4-zstart)/2.;
190 par1[4] = rAbs+(zstart-zOpen) * TMath::Tan(thetaOpen1);
191 par1[5] = zstart * TMath::Tan(accMin);
193 par1[6] = -dl+zvac1-zstart;
194 par1[7] = rAbs+ (zvac1-zOpen) * TMath::Tan(thetaOpen1);
195 par1[8] = zvac1 * TMath::Tan(accMin);
197 par1[9] = par1[6]+dr11;
198 par1[10] = par1[7]+dr11;
199 par1[11] = (zvac1+dr11) * TMath::Tan(accMin);
201 par1[12] = -dl+dRear1;
203 par1[14] = zRear * TMath::Tan(accMin);
205 par1[15] = -dl+dRear1;
209 par1[18] = -dl+(zvac1+dr11+dB1-zstart);
213 par1[21] = par1[18]+dr12;
214 par1[22] = par1[19]+dr12;
217 par1[24] = par1[21]+dF1;
221 par1[27] = par1[24]+dr12;
222 par1[28] = par1[25]-dr12;
225 par1[30] = par1[27]+dB1;
229 par1[33] = par1[30]+dr13;
230 par1[34] = par1[31]-dr13;
233 par1[36] = -dl+zvac4-zstart;
234 par1[37] = par1[34]+(zvac4-zvac3)*TMath::Tan(thetaOpen2);
238 Float_t rBox=par1[31]-0.1;
240 gMC->Gsvolu("YGO1", "PCON", idtmed[kNiCuW], par1, 39);
241 { // Begin local scope for i
242 for (Int_t i=4; i<38; i+=3) par1[i] = 0;
243 } // End local scope for i
244 gMC->Gsvolu("YMO1", "PCON", idtmed[kVacuum+40], par1, 39);
245 gMC->Gspos("YGO1", 1, "YMO1", 0., 0., 0., 0, "ONLY");
247 gMC->Gspos("YMO1", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
252 tpar[0]=R11-dRSteel1;
255 gMC->Gsvolu("YSE1", "TUBE", idtmed[kNiCuW], tpar, 3);
257 gMC->Gspos("YSE1", 1, "YGO1", 0., 0., dz, 0, "ONLY");
259 // 1st section: vacuum system
267 gMC->Gsvolu("YB11", "TUBE", idtmed[kSteel+40], tpar, 3);
272 tpar[2]=(lB1/2.-2.*eB1)/2.;
273 gMC->Gsvolu("YB12", "TUBE", idtmed[kSteel+40], tpar, 3);
279 gMC->Gsvolu("YB13", "TUBE", idtmed[kSteel+40], tpar, 3);
286 gMC->Gsvolu("YBU1", "TUBE", idtmed[kVacuum+40], tpar, 3);
289 gMC->Gspos("YB13", 1, "YBU1", 0., 0., dz, 0, "ONLY");
292 gMC->Gspos("YB11", 1, "YBU1", 0., 0., dz, 0, "ONLY");
295 gMC->Gspos("YB12", 1, "YBU1", 0., 0., dz, 0, "ONLY");
298 gMC->Gspos("YB11", 2, "YBU1", 0., 0., dz, 0, "ONLY");
301 gMC->Gspos("YB13", 2, "YBU1", 0., 0., dz, 0, "ONLY");
307 gMC->Gsvolu("YBM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
309 { // Begin local scope for i
310 for (Int_t i=0; i<10; i++) {
311 gMC->Gspos("YBU1", i+1 , "YBM1", 0., 0., dz, 0, "ONLY");
314 } // End local scope for i
315 dz=-dl+(zvac1-zstart)+dr11+tpar[2];
316 gMC->Gspos("YBM1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
318 dz=dl-dr13-(zvac4-zvac3)-tpar[2];
319 gMC->Gspos("YBM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
327 gMC->Gsvolu("YFM1", "TUBE", idtmed[kVacuum+40], tpar, 3);
332 gMC->Gsvolu("YF11", "TUBE", idtmed[kSteel+40], tpar, 3);
333 gMC->Gspos("YF11", 1, "YFM1", 0., 0., 0., 0, "ONLY");
338 gMC->Gsvolu("YF12", "TUBE", idtmed[kSteel+40], tpar, 3);
340 gMC->Gspos("YF12", 1, "YFM1", 0., 0., dz, 0, "ONLY");
342 gMC->Gspos("YF12", 2, "YFM1", 0., 0., dz, 0, "ONLY");
344 dz=-dl+(zvac2-zstart);
345 gMC->Gspos("YFM1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
348 // pipe between flange and bellows
351 tpar[2]=2.*(dB1+dr12-10.*lB1)/4.;
352 gMC->Gsvolu("YPF1", "TUBE", idtmed[kSteel+40], tpar, 3);
354 dz=-dl+(zvac2-zstart)-dF1/2.-tpar[2];
355 gMC->Gspos("YPF1", 1, "YMO1", 0., 0., dz, 0, "ONLY");
356 dz=-dl+(zvac2-zstart)+dF1/2.+tpar[2];
357 gMC->Gspos("YPF1", 2, "YMO1", 0., 0., dz, 0, "ONLY");
359 // pipe and heating jackets outside bellows
362 cpar0[0]=(zvac1-zstart)/2;
363 cpar0[1]=rVacu+(zstart-zOpen)*TMath::Tan(thetaOpen1)-0.05;
364 cpar0[2]=rAbs +(zstart-zOpen)*TMath::Tan(thetaOpen1);
365 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
366 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen1);
367 gMC->Gsvolu("YV11", "CONE", idtmed[kSteel+40], cpar0, 5);
372 cpar[1]=cpar0[1]+0.15;
373 cpar[2]=cpar0[1]+0.65;
374 cpar[3]=cpar0[3]+0.15;
375 cpar[4]=cpar0[3]+0.65;
376 gMC->Gsvolu("YI11", "CONE", idtmed[kInsulation+40], cpar, 5);
377 gMC->Gspos("YI11", 1, "YV11", 0., 0., 0., 0, "ONLY");
380 cpar[1]=cpar0[1]+0.75;
381 cpar[2]=cpar0[1]+1.25;
382 cpar[3]=cpar0[3]+0.75;
383 cpar[4]=cpar0[3]+1.25;
384 gMC->Gsvolu("YP11", "CONE", idtmed[kVacuum+40], cpar, 5);
385 gMC->Gspos("YP11", 1, "YV11", 0., 0., 0., 0, "ONLY");
388 gMC->Gspos("YV11", 1, "YMO1", 0., 0., dz, 0, "ONLY");
393 cpar0[0]=(zvac4-zvac3)/2;
395 cpar0[2]=cpar0[1]+dVacuS;
397 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
398 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
399 gMC->Gsvolu("YV12", "CONE", idtmed[kSteel], cpar0, 5);
400 Float_t r2V=cpar0[3];
404 cpar[1]=cpar0[1]+dTubeS;
405 cpar[2]=cpar0[1]+dTubeS+dInsuS;
406 cpar[3]=cpar0[3]+dTubeS;
407 cpar[4]=cpar0[3]+dTubeS+dInsuS;
408 gMC->Gsvolu("YI12", "CONE", idtmed[kInsulation], cpar, 5);
409 gMC->Gspos("YI12", 1, "YV12", 0., 0., 0., 0, "ONLY");
413 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
414 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
415 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
416 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
417 gMC->Gsvolu("YP12", "CONE", idtmed[kAir], cpar, 5);
418 gMC->Gspos("YP12", 1, "YV12", 0., 0., 0., 0, "ONLY");
421 gMC->Gspos("YV12", 1, "YMO1", 0., 0., dz, 0, "ONLY");
424 // Between first and second bellow section
433 par2[4] = r2+(zvac4-zvac3) * TMath::Tan(thetaOpen2);
440 par2[9] = -dl+(zvac6-zvac4);
441 par2[10] = r2+(zvac6-zvac3) * TMath::Tan(thetaOpen2);
444 par2[12] = -dl+(zvac6-zvac4);
446 par2[14] = zvac6*TMath::Tan(accMin);
448 // Start of Pb section
449 par2[15] = -dl+(zPb-zvac4);
450 par2[16] = r2+(zPb-zvac3) * TMath::Tan(thetaOpen2);
451 par2[17] = zPb*TMath::Tan(accMin);
454 // end of cone following 2 deg line
455 par2[18] = -dl+(zConeE-zvac4);
456 par2[19] = r2+(zConeE-zvac3) * TMath::Tan(thetaOpen2);
459 par2[21] = -dl+(zvac7-zvac4);
460 par2[22] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
464 gMC->Gsvolu("YGO2", "PCON", idtmed[kNiCuW+40], par2, 24);
466 // Lead cone option replacing Tungsten
472 Float_t dlPb=(zvac7-zPb)/2.;
476 parPb[5] = zPb*TMath::Tan(accMin);
478 parPb[6] = -dlPb+(zConeE-zPb);
479 parPb[7] = parPb[4]+(zConeE-zPb)*TMath::Tan(thetaOpenPb);
483 parPb[10] = parPb[7]+(zvac7-zConeE)*TMath::Tan(thetaOpenPb);
485 gMC->Gsvolu("YXO2", "PCON", idtmed[kPb], parPb, 12);
486 gMC->Gspos("YXO2", 1, "YGO2", 0., 0., (zPb-zvac4)/2., 0, "ONLY");
488 { // Begin local scope for i
489 for (Int_t i=4; i<23; i+=3) par2[i] = 0;
490 } // End local scope for i
492 gMC->Gsvolu("YMO2", "PCON", idtmed[kVacuum+40], par2, 24);
493 gMC->Gspos("YGO2", 1, "YMO2", 0., 0., 0., 0, "ONLY");
495 gMC->Gspos("YMO2", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
500 tpar[0]=R11-dRSteel1;
503 gMC->Gsvolu("YS21", "TUBE", idtmed[kSteel], tpar, 3);
505 gMC->Gspos("YS21", 1, "YGO2", 0., 0., dz, 0, "ONLY");
507 tpar[0]=R21-dRSteel2;
509 tpar[2]=(zvac6-zvac5)/2.;
510 gMC->Gsvolu("YS22", "TUBE", idtmed[kSteel], tpar, 3);
512 gMC->Gspos("YS22", 1, "YGO2", 0., 0., dz, 0, "ONLY");
516 cpar[1]=R21-dRSteel2;
517 cpar[2]=zvac6 * TMath::Tan(accMin);
519 cpar[4]=cpar[2]+4.*TMath::Tan(accMin);
521 gMC->Gsvolu("YS23", "CONE", idtmed[kSteel], cpar, 5);
523 gMC->Gspos("YS23", 1, "YGO2", 0., 0., dz, 0, "ONLY");
526 cpar[0]=(zPb-zvac6-4.)/2;
528 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
529 cpar[1]=cpar[2]-dRSteel2;
530 cpar[3]=cpar[4]-dRSteel2;
532 gMC->Gsvolu("YS24", "CONE", idtmed[kSteel], cpar, 5);
534 gMC->Gspos("YS24", 1, "YGO2", 0., 0., dz, 0, "ONLY");
537 cpar[0]=(zConeE-zPb)/2;
539 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
540 cpar[1]=cpar[2]-dRSteel2;
541 cpar[3]=cpar[4]-dRSteel2;
543 gMC->Gsvolu("YS25", "CONE", idtmed[kSteel], cpar, 5);
545 gMC->Gspos("YS25", 1, "YXO2", 0., 0., dz, 0, "ONLY");
550 tpar[2]=(zvac7-zConeE)/2.;
552 gMC->Gsvolu("YS26", "TUBE", idtmed[kSteel], tpar, 3);
554 gMC->Gspos("YS26", 1, "YXO2", 0., 0., dz, 0, "ONLY");
558 // 2nd section: vacuum system
560 cpar0[0]=(zvac7-zvac4)/2;
563 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
564 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpenB);
565 gMC->Gsvolu("YV21", "CONE", idtmed[kSteel+40], cpar0, 5);
569 cpar[1]=cpar0[1]+dTubeS;
570 cpar[2]=cpar0[1]+dTubeS+dInsuS;
571 cpar[3]=cpar0[3]+dTubeS;
572 cpar[4]=cpar0[3]+dTubeS+dInsuS;
573 gMC->Gsvolu("YI21", "CONE", idtmed[kInsulation+40], cpar, 5);
574 gMC->Gspos("YI21", 1, "YV21", 0., 0., 0., 0, "ONLY");
577 cpar[1]=cpar0[1]+dTubeS+dInsuS+dEnveS;
578 cpar[2]=cpar0[1]+dTubeS+dInsuS+dEnveS+dFreeS;
579 cpar[3]=cpar0[3]+dTubeS+dInsuS+dEnveS;
580 cpar[4]=cpar0[3]+dTubeS+dInsuS+dEnveS+dFreeS;
581 gMC->Gsvolu("YP21", "CONE", idtmed[kAir+40], cpar, 5);
582 gMC->Gspos("YP21", 1, "YV21", 0., 0., 0., 0, "ONLY");
585 gMC->Gspos("YV21", 1, "YMO2", 0., 0., dz, 0, "ONLY");
589 // Third Section: Bellows and Flange
597 par3[4] = r2+(zvac7-zvac3) * TMath::Tan(thetaOpen2);
601 par3[7] = par3[4]+dr21;
604 par3[9] = par3[6]+dB2;
608 par3[12] = par3[9]+dr22;
609 par3[13] = par3[10]+dr22;
612 par3[15] = par3[12]+dF2;
616 par3[18] = par3[15]+dr22;
617 par3[19] = par3[16]-dr22;
620 par3[21] = par3[18]+dB2;
624 par3[24] = par3[21]+dr23;
625 par3[25] = par3[22]-dr23;
631 gMC->Gsvolu("YGO3", "PCON", idtmed[kNiCuW+40], par3, 27);
634 parPb[1] = parPb[10];
636 parPb[3] = parPb[1]+2.*dl*TMath::Tan(thetaOpenPb);
638 gMC->Gsvolu("YXO3", "CONE", idtmed[kPb], parPb, 5);
639 gMC->Gspos("YXO3", 1, "YGO3", 0., 0., 0., 0, "ONLY");
640 { // Begin local scope for i
641 for (Int_t i=4; i<26; i+=3) par3[i] = 0;
642 } // End local scope for i
643 gMC->Gsvolu("YMO3", "PCON", idtmed[kVacuum+40], par3, 27);
644 gMC->Gspos("YGO3", 1, "YMO3", 0., 0., 0., 0, "ONLY");
651 gMC->Gsvolu("YS31", "TUBE", idtmed[kSteel], tpar, 3);
652 gMC->Gspos("YS31", 1, "YXO3", 0., 0., 0., 0, "ONLY");
654 gMC->Gspos("YMO3", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
658 // 3rd section: vacuum system
666 gMC->Gsvolu("YB21", "TUBE", idtmed[kSteel+40], tpar, 3);
671 tpar[2]=(lB2/2.-2.*eB2)/2.;
672 gMC->Gsvolu("YB22", "TUBE", idtmed[kSteel+40], tpar, 3);
678 gMC->Gsvolu("YB23", "TUBE", idtmed[kSteel+40], tpar, 3);
685 gMC->Gsvolu("YBU2", "TUBE", idtmed[kVacuum+40], tpar, 3);
688 gMC->Gspos("YB23", 1, "YBU2", 0., 0., dz, 0, "ONLY");
691 gMC->Gspos("YB21", 1, "YBU2", 0., 0., dz, 0, "ONLY");
694 gMC->Gspos("YB22", 1, "YBU2", 0., 0., dz, 0, "ONLY");
697 gMC->Gspos("YB21", 2, "YBU2", 0., 0., dz, 0, "ONLY");
700 gMC->Gspos("YB23", 2, "YBU2", 0., 0., dz, 0, "ONLY");
706 gMC->Gsvolu("YBM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
708 { // Begin local scope for i
709 for (Int_t i=0; i<7; i++) {
710 gMC->Gspos("YBU2", i+1 , "YBM2", 0., 0.,dz , 0, "ONLY");
713 } // End local scope for i
715 gMC->Gspos("YBM2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
718 gMC->Gspos("YBM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
726 gMC->Gsvolu("YFM2", "TUBE", idtmed[kVacuum+40], tpar, 3);
731 gMC->Gsvolu("YF21", "TUBE", idtmed[kSteel+40], tpar, 3);
732 gMC->Gspos("YF21", 1, "YFM2", 0., 0., 0., 0, "ONLY");
737 gMC->Gsvolu("YF22", "TUBE", idtmed[kSteel+40], tpar, 3);
739 gMC->Gspos("YF22", 1, "YFM2", 0., 0., dz, 0, "ONLY");
741 gMC->Gspos("YF22", 2, "YFM2", 0., 0., dz, 0, "ONLY");
744 gMC->Gspos("YFM2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
748 // pipe between flange and bellows
751 tpar[2]=2.*(dB2+dr22-7.*lB2)/4.;
752 gMC->Gsvolu("YPF2", "TUBE", idtmed[kSteel+40], tpar, 3);
753 dz=dr21/2.-dr23/2.-dF2/2.-tpar[2];
754 gMC->Gspos("YPF2", 1, "YMO3", 0., 0., dz, 0, "ONLY");
755 dz=dr21/2.-dr23/2.+dF2/2.+tpar[2];
756 gMC->Gspos("YPF2", 2, "YMO3", 0., 0., dz, 0, "ONLY");
759 // 4th section: rear shield and closing cone
764 dl=(zvac12-zvac9)/2.;
770 par4[6] = -dl+(zvac10-zvac9);
771 par4[7] = r3+(zvac10-zvac9) * TMath::Tan(thetaOpen3);
778 par4[12] = -dl+(zvac11-zvac9);
779 par4[13] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
786 par4[18] = -dl+(zvac12-zvac9);
790 gMC->Gsvolu("YGO4", "PCON", idtmed[kNiCuW+40], par4, 21);
792 parPb[0] = (zvac10-zvac9)/2.;
795 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
797 gMC->Gsvolu("YXO4", "CONE", idtmed[kPb], parPb, 5);
798 gMC->Gspos("YXO4", 1, "YGO4", 0., 0., -dl+parPb[0], 0, "ONLY");
800 parPb[0] = (zvac12-zvac10)/2.;
803 parPb[3] = parPb[1]+2.*parPb[0]*TMath::Tan(thetaOpenPb);
805 gMC->Gsvolu("YXO5", "CONE", idtmed[kPb], parPb, 5);
806 gMC->Gspos("YXO5", 1, "YGO4", 0., 0., -dl+(zvac10-zvac9)+parPb[0], 0, "ONLY");
807 { // Begin local scope for i
808 for (Int_t i=4; i<20; i+=3) par4[i] = 0;
809 } // End local scope for i
811 gMC->Gsvolu("YMO4", "PCON", idtmed[kVacuum+40], par4, 21);
812 gMC->Gspos("YGO4", 1, "YMO4", 0., 0., 0., 0, "ONLY");
817 gMC->Gspos("YMO4", 1, "YMOT", 0., 0., dZ, 0, "ONLY");
820 // Closing concrete cone
822 cpar[0]=(zvac12-zvac11)/2.;
823 cpar[1] = r3+(zvac11-zvac9) * TMath::Tan(thetaOpen3);
824 cpar[2] = cpar[1]+0.001;
827 gMC->Gsvolu("YCC4", "CONE", idtmed[kConcrete+40], cpar, 5);
829 gMC->Gspos("YCC4", 1, "YGO4", 0., 0., dz, 0, "ONLY");
836 tpar[2]=(zvac10-zvac9)/2.;
837 gMC->Gsvolu("YS41", "TUBE", idtmed[kSteel], tpar, 3);
839 gMC->Gspos("YS41", 1, "YXO4", 0., 0., 0., 0, "ONLY");
845 gMC->Gsvolu("YS42", "TUBE", idtmed[kSteel], tpar, 3);
847 gMC->Gspos("YS42", 1, "YGO4", 0., 0., dz, 0, "ONLY");
850 tpar[0]=R41-dRSteel2;
852 tpar[2]=(zvac11-zvac10)/2.;
853 gMC->Gsvolu("YS43", "TUBE", idtmed[kSteel], tpar, 3);
855 gMC->Gspos("YS43", 1, "YGO4", 0., 0., dz, 0, "ONLY");
861 tpar[2]=(zvac11-zvac10)/2.;
862 gMC->Gsvolu("YPBI", "TUBE", idtmed[kPb+40], tpar, 3);
864 gMC->Gspos("YPBI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
868 tpar[2]=(zvac11-zvac10)/2.;
869 gMC->Gsvolu("YPBO", "TUBE", idtmed[kPb], tpar, 3);
870 gMC->Gspos("YPBO", 1, "YPBI", 0., 0., 0., 0, "ONLY");
878 tpar[2]=(zvac12-zvac11)/2.;
879 gMC->Gsvolu("YFEI", "TUBE", idtmed[kFe+40], tpar, 3);
881 gMC->Gspos("YFEI", 1, "YGO4", 0., 0., dz, 0, "ONLY");
886 gMC->Gsvolu("YFEO", "TUBE", idtmed[kFe], tpar, 3);
887 dz=-(zvac12-zvac11)/2.+tpar[2];
888 gMC->Gspos("YFEO", 1, "YFEI", 0., 0., dz, 0, "ONLY");
895 gMC->Gsvolu("YAEM", "TUBE", idtmed[kAir], tpar, 3);
899 gMC->Gsvolu("YFEM", "TUBE", idtmed[kFe], tpar, 3);
900 gMC->Gspos("YFEM", 1, "YAEM", 0., 0., 0., 0, "ONLY");
905 gMC->Gspos("YAEM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
910 // 4th section: vacuum system
912 // up to closing cone
913 cpar0[0]=(zvac11-zvac9)/2;
916 cpar0[3]=cpar0[1]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
917 cpar0[4]=cpar0[2]+2.*cpar0[0]*TMath::Tan(thetaOpen3);
918 gMC->Gsvolu("YV31", "CONE", idtmed[kSteel+40], cpar0, 5);
922 cpar[1]=cpar0[1]+dTubeS;
923 cpar[2]=cpar0[1]+dTubeS+dInsuS;
924 cpar[3]=cpar0[3]+dTubeS;
925 cpar[4]=cpar0[3]+dTubeS+dInsuS;
926 gMC->Gsvolu("YI31", "CONE", idtmed[kInsulation+40], cpar, 5);
927 gMC->Gspos("YI31", 1, "YV31", 0., 0., 0., 0, "ONLY");
930 cpar[1]=cpar0[2]-dProtS-dFreeS;
931 cpar[2]=cpar0[2]-dProtS;
932 cpar[3]=cpar0[4]-dProtS-dFreeS;
933 cpar[4]=cpar0[4]-dProtS;
934 gMC->Gsvolu("YP31", "CONE", idtmed[kVacuum+40], cpar, 5);
935 gMC->Gspos("YP31", 1, "YV31", 0., 0., 0., 0, "ONLY");
938 gMC->Gspos("YV31", 1, "YMO4", 0., 0., dz, 0, "ONLY");
941 cpar0[0]=(zvac12-zvac11)/2;
942 cpar0[1]=r3-dVacuS+(zvac11-zvac9)*TMath::Tan(thetaOpen3);
943 cpar0[2]=r3 +(zvac11-zvac9)*TMath::Tan(thetaOpen3);
946 gMC->Gsvolu("YV32", "CONE", idtmed[kSteel+40], cpar0, 5);
950 cpar[1]=cpar0[1]+dTubeS;
951 cpar[2]=cpar0[1]+dTubeS+dInsuS;
952 cpar[3]=cpar0[3]+dTubeS;
953 cpar[4]=cpar0[3]+dTubeS+dInsuS;
954 gMC->Gsvolu("YI32", "CONE", idtmed[kInsulation+40], cpar, 5);
955 gMC->Gspos("YI32", 1, "YV32", 0., 0., 0., 0, "ONLY");
958 cpar[1]=cpar0[2]-dProtS-dFreeS;
959 cpar[2]=cpar0[2]-dProtS;
960 cpar[3]=cpar0[4]-dProtS-dFreeS;
961 cpar[4]=cpar0[4]-dProtS;
962 gMC->Gsvolu("YP32", "CONE", idtmed[kVacuum+40], cpar, 5);
963 gMC->Gspos("YP32", 1, "YV32", 0., 0., 0., 0, "ONLY");
966 gMC->Gspos("YV32", 1, "YMO4", 0., 0., dz, 0, "ONLY");
973 tpar[2] = (zFilterOut - zFilterIn) / 2.;
974 gMC->Gsvolu("YFIM", "TUBE", idtmed[kFe+40], tpar, 3);
975 dz = (zFilterIn + zFilterOut) / 2.;
977 gMC->Gsvolu("YFII","TUBE", idtmed[kFe], tpar, 3);
978 gMC->Gspos("YFII", 1, "YFIM", 0., 0., 0., 0, "ONLY");
979 gMC->Gspos("YFIM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
981 // Shielding close to chamber
983 cpar[0]=(zch1-dzch-1.-zRear)/2.;
985 cpar[2]=zRear*TMath::Tan(accMin);
987 cpar[4]=(zRear+2.*cpar[0])*TMath::Tan(accMin);
988 gMC->Gsvolu("YCS1", "CONE", idtmed[kNiCuW], cpar, 5);
990 gMC->Gspos("YCS1", 1, "ALIC", 0., 0., dz, 0, "ONLY");
992 cpar[0]=(zvac4-(zch1+dzch+1.))/2.;
994 cpar[2]=(zvac4-2.*cpar[0])*TMath::Tan(accMin);
997 gMC->Gsvolu("YCS2", "CONE", idtmed[kNiCuW], cpar, 5);
999 gMC->Gspos("YCS2", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1003 cpar[2]=(zch1-dzch+1.)*TMath::Tan(accMin);
1005 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1006 gMC->Gsvolu("YCS3", "CONE", idtmed[kNiCuW], cpar, 5);
1008 gMC->Gspos("YCS3", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1011 cpar[0]=(zch2-dzch-1.-zvac4)/2.;
1013 cpar[2]=zvac4*TMath::Tan(accMin);
1015 cpar[4]=(zvac4+2.*cpar[0])*TMath::Tan(accMin);
1016 gMC->Gsvolu("YCS4", "CONE", idtmed[kNiCuW], cpar, 5);
1018 gMC->Gspos("YCS4", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1021 cpar[0]=(zvac6-(zch2+dzch+1.))/2.;
1023 cpar[2]=(zvac6-2.*cpar[0])*TMath::Tan(accMin);
1025 cpar[4]=zvac6*TMath::Tan(accMin);
1026 gMC->Gsvolu("YCS5", "CONE", idtmed[kNiCuW], cpar, 5);
1028 gMC->Gspos("YCS5", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1032 cpar[2]=(zch2-dzch+1.)*TMath::Tan(accMin);
1034 cpar[4]=cpar[2]+2.*cpar[0]*TMath::Tan(accMin);
1035 gMC->Gsvolu("YCS6", "CONE", idtmed[kNiCuW], cpar, 5);
1037 gMC->Gspos("YCS6", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1041 cpar[0]=(zFilterIn-zConeE)/2.;
1045 cpar[4]=30.+2.*cpar[0]*TMath::Tan(thetaOpenPbO);
1047 gMC->Gsvolu("YOPB", "CONE", idtmed[kPb], cpar, 5);
1049 gMC->Gspos("YOPB", 1, "ALIC", 0., 0., dz, 0, "ONLY");
1053 void AliSHILv0::Init()
1056 // Initialise the muon shield after it has been built
1061 for(i=0;i<35;i++) printf("*");
1062 printf(" SHILv0_INIT ");
1063 for(i=0;i<35;i++) printf("*");
1066 // Here the SHIL initialisation code (if any!)
1067 for(i=0;i<80;i++) printf("*");