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Made a new abstract base class; AliL3HoughBaseTransformer for different implementations
[u/mrichter/AliRoot.git] / STRUCT / AliABSOv0.cxx
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1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/*
17$Log$
18Revision 1.10 2001/10/25 08:50:57 morsch
19New beamshield geometry with increased tolerances and insulation thickness.
20
21Revision 1.9 2001/05/16 14:57:22 alibrary
22New files for folders and Stack
23
24Revision 1.8 2001/01/12 13:16:09 morsch
25Store absorber composition information in fMLayers and fZLayers
26Rear 25 cm Fe + 35 cm Cu
27
28Revision 1.7 2000/10/02 21:28:15 fca
29Removal of useless dependecies via forward declarations
30
31Revision 1.6 2000/06/15 09:40:31 morsch
32Obsolete typedef keyword removed
33
34Revision 1.5 2000/06/12 19:39:01 morsch
35New structure of beam pipe and heating jacket.
36
37Revision 1.4 2000/04/03 08:13:40 fca
38Introduce extra scope for non ANSI compliant C++ compilers
39
40Revision 1.3 2000/01/18 17:49:56 morsch
41Serious overlap of ABSM with shield corrected
42Small error in ARPB parameters corrected
43
44Revision 1.2 2000/01/13 11:23:59 morsch
45Last layer of Pb outer angle corrected
46
47Revision 1.1 2000/01/12 15:39:30 morsch
48Standard version of ABSO
49
50*/
51
52///////////////////////////////////////////////////////////////////////////////
53// //
54// Muon ABSOrber //
55// This class contains the description of the muon absorber geometry //
56// //
57//Begin_Html
58/*
59<img src="picts/AliABSOClass.gif">
60</pre>
61<br clear=left>
62<font size=+2 color=red>
63<p>The responsible person for this module is
64<a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
65</font>
66<pre>
67*/
68//End_Html
69// //
70// //
71///////////////////////////////////////////////////////////////////////////////
72
73#include "AliABSOv0.h"
74#include "AliRun.h"
75#include "AliMC.h"
76#include "AliConst.h"
77
78ClassImp(AliABSOv0)
79
80//_____________________________________________________________________________
81AliABSOv0::AliABSOv0()
82{
83 //
84 // Default constructor
85 //
86}
87
88//_____________________________________________________________________________
89AliABSOv0::AliABSOv0(const char *name, const char *title)
90 : AliABSO(name,title)
91{
92 //
93 // Standard constructor
94 //
95 SetMarkerColor(7);
96 SetMarkerStyle(2);
97 SetMarkerSize(0.4);
98}
99
100//_____________________________________________________________________________
101void AliABSOv0::CreateGeometry()
102{
103 //
104 // Creation of the geometry of the muon absorber
105 //
106 //Begin_Html
107 /*
108 <img src="picts/AliABSOv0Tree.gif">
109 */
110 //End_Html
111 //Begin_Html
112 /*
113 <img src="picts/AliABSOv0.gif">
114 */
115 //End_Html
116
117 //
118 //
119
120 enum {kC=1605, kAl=1608, kFe=1609, kCu=1610, kW=1611, kPb=1612,
121 kNiCuW=1620, kVacuum=1615, kAir=1614, kConcrete=1616,
122 kPolyCH2=1617, kSteel=1609, kInsulation=1613, kPolyCc=1619};
123
124 Int_t *idtmed = fIdtmed->GetArray()-1599;
125
126 Float_t par[24], cpar[5], cpar0[5], pcpar[12], tpar[3], tpar0[3];
127 Float_t dz;
128 Int_t idrotm[1699];
129#include "ABSOSHILConst.h"
130#include "ABSOConst.h"
131//
132// Structure of Tracking Region
133//
134 Float_t dzFe = 25.;
135
136// 3 < theta < 9
137 fNLayers[0] = 5;
138 fMLayers[0][0] = kAir; fZLayers[0][0] = zAbsStart;
139 fMLayers[0][1] = kC; fZLayers[0][1] = zAbsCc;
140 fMLayers[0][2] = kConcrete; fZLayers[0][2] = zRear-dRear-dzFe;
141 fMLayers[0][3] = kSteel; fZLayers[0][3] = zRear-dRear;
142 fMLayers[0][4] = kCu; fZLayers[0][4] = zRear;
143// 2 < theta < 3
144 fNLayers[1] = 5;
145 fMLayers[1][0] = fMLayers[0][0]; fZLayers[1][0] = fZLayers[0][0];
146 fMLayers[1][1] = fMLayers[0][1]; fZLayers[1][1] = fZLayers[0][1];
147 fMLayers[1][2] = fMLayers[0][2]; fZLayers[1][2] = fZLayers[0][2];
148 fMLayers[1][3] = fMLayers[0][3]; fZLayers[1][3] = fZLayers[0][3];
149 fMLayers[1][4] = kNiCuW; fZLayers[1][4] = fZLayers[0][4];
150//
151
152 Float_t dTube=0.1; // tube thickness
153 Float_t dInsu=0.5; // insulation thickness
154 Float_t dEnve=0.1; // protective envelope thickness
155 Float_t dFree=0.5; // clearance thickness
156
157
158// Mother volume and outer shielding: Pb
159 par[0] = 0.;
160 par[1] = 360.;
161 par[2] = 7.;
162
163 par[3] = -(zRear-zAbsStart)/2.;
164 par[4] = rAbs;
165 par[5] = zAbsStart * TMath::Tan(theta1);
166
167 par[6] = par[3]+(zNose-zAbsStart);
168 par[7] = rAbs;
169 par[8] = zNose * TMath::Tan(theta1);
170
171 par[9] = par[3]+(zConeTPC-zAbsStart);
172 par[10] = rAbs;
173 par[11] = par[8] + (par[9] - par[6]) * TMath::Tan(theta2);
174
175 par[12] = par[3]+(zOpen-zAbsStart);
176 par[13] = rAbs;
177 par[14] = par[11] + (par[12] - par[9]) * TMath::Tan(accMax);
178
179 par[15] = par[3]+(zRear-dRear-zAbsStart);
180 par[16] = rAbs + (par[15] - par[12]) * TMath::Tan(thetaOpen1) ;
181 par[17] = par[14] + (par[15] - par[12]) * TMath::Tan(accMax);
182
183 par[18] = par[3]+(zRear-dRear-zAbsStart);
184 par[19] = (zRear-dRear) * TMath::Tan(accMin);
185 par[20] = par[14] + (par[18] - par[12]) * TMath::Tan(accMax);
186
187 par[21] = -par[3];
188 par[22] = zRear* TMath::Tan(accMin);
189 par[23] = par[20] + (par[21] - par[18]) * TMath::Tan(accMax);
190 gMC->Gsvolu("ABSS", "PCON", idtmed[kPb], par, 24);
191 { // Begin local scope for i
192 for (Int_t i=4; i<18; i+=3) par[i] = 0;
193 } // End local scope for i
194 gMC->Gsvolu("ABSM", "PCON", idtmed[kVacuum+40], par, 24);
195 gMC->Gspos("ABSS", 1, "ABSM", 0., 0., 0., 0, "ONLY");
196
197//
198// Steel envelope
199//
200 par[4] = par[5] -dSteel;
201 par[7] = par[8] -dSteel;
202 par[10]= par[11]-dSteel;
203 par[13]= par[14]-dSteel;
204 par[16]= par[17]-dSteel;
205 par[19]= par[20]-dSteel;
206 par[22]= par[23]-dSteel;
207 gMC->Gsvolu("ABST", "PCON", idtmed[kSteel], par, 24);
208 gMC->Gspos("ABST", 1, "ABSS", 0., 0., 0., 0, "ONLY");
209//
210// Polyethylene shield
211//
212 cpar[0] = (zRear - zConeTPC) / 2.;
213 cpar[1] = zConeTPC * TMath::Tan(accMax);
214 cpar[2] = cpar[1] + dPoly;
215 cpar[3] = zRear * TMath::Tan(accMax);
216 cpar[4] = cpar[3] + dPoly;
217 gMC->Gsvolu("APOL", "CONE", idtmed[kPolyCH2+40], cpar, 5);
218 dz = (zRear-zAbsStart)/2.-cpar[0];
219 gMC->Gspos("APOL", 1, "ABSS", 0., 0., dz, 0, "ONLY");
220
221//
222// Tungsten nose to protect TPC
223//
224 cpar[0] = (zNose - zAbsStart) / 2.;
225 cpar[1] = zAbsStart * TMath::Tan(accMax);
226 cpar[2] = zAbsStart * TMath::Tan(theta1)-dSteel;
227 cpar[3] = zNose * TMath::Tan(accMax);
228 cpar[4] = zNose * TMath::Tan(theta1)-dSteel;
229 gMC->Gsvolu("ANOS", "CONE", idtmed[kW], cpar, 5);
230//
231 dz = -(zRear-zAbsStart)/2.+cpar[0];
232 gMC->Gspos("ANOS", 1, "ABSS", 0., 0., dz, 0, "ONLY");
233//
234// Tungsten inner shield
235//
236 Float_t zW = zTwoDeg+.1;
237 Float_t dZ = zW+(zRear-dRear-zW)/2.;
238 //
239 pcpar[0] = 0.;
240 pcpar[1] = 360.;
241 pcpar[2] = 3.;
242 pcpar[3] = zW-dZ;
243 pcpar[4] = rAbs;
244 pcpar[5] = zW * TMath::Tan(accMin);
245 pcpar[6] = zOpen-dZ;
246 pcpar[7] = rAbs;
247 pcpar[8] = zOpen * TMath::Tan(accMin);
248 pcpar[9] = zRear-dRear-dZ;
249 pcpar[10] = rAbs+(zRear-dRear-zOpen) * TMath::Tan(thetaOpen1);
250 pcpar[11] = (zRear-dRear) * TMath::Tan(accMin);
251
252 gMC->Gsvolu("AWIN", "PCON", idtmed[kNiCuW+40], pcpar, 12);
253 //
254 dz=(zW+zRear-dRear)/2-(zAbsStart+zRear)/2.;
255 gMC->Gspos("AWIN", 1, "ABSS", 0., 0., dz, 0, "ONLY");
256 cpar[0] = (200.-zW)/2.;
257 cpar[1] = rAbs;
258 cpar[2] = pcpar[5];
259 cpar[3] = rAbs;
260 cpar[4] = 200. * TMath::Tan(accMin);
261 gMC->Gsvolu("ACNO", "CONE", idtmed[kC], cpar, 5);
262 dz = zW-dZ+cpar[0];
263
264 gMC->Gspos("ACNO", 1, "AWIN", 0., 0., dz, 0, "ONLY");
265 // Inner tracking region
266 //
267 // mother volume: Cu
268 //
269 pcpar[0] = 0.;
270 pcpar[1] = 360.;
271 pcpar[2] = 3.;
272 pcpar[3] = -(zRear-zAbsStart)/2.;
273 pcpar[4] = rAbs;
274 pcpar[5] = zAbsStart * TMath::Tan(accMax);
275 pcpar[6] = pcpar[3]+(zTwoDeg-zAbsStart);
276 pcpar[7] = rAbs;
277 pcpar[8] = zTwoDeg * TMath::Tan(accMax);
278 pcpar[9] = -pcpar[3];
279 pcpar[10] = zRear * TMath::Tan(accMin);
280 pcpar[11] = zRear * TMath::Tan(accMax);
281 gMC->Gsvolu("AITR", "PCON", idtmed[fMLayers[0][4]], pcpar, 12);
282 //
283 // special Pb medium for last 5 cm of Pb
284 Float_t zr=zRear-2.-0.001;
285 cpar[0] = 1.0;
286 cpar[1] = zr * TMath::Tan(thetaR);
287 cpar[2] = zr * TMath::Tan(accMax);
288 cpar[3] = cpar[1] + TMath::Tan(thetaR) * 2;
289 cpar[4] = cpar[2] + TMath::Tan(accMax) * 2;
290 gMC->Gsvolu("ARPB", "CONE", idtmed[fMLayers[0][4]], cpar, 5);
291 dz=(zRear-zAbsStart)/2.-cpar[0]-0.001;
292 gMC->Gspos("ARPB", 1, "AITR", 0., 0., dz, 0, "ONLY");
293 //
294 // concrete cone: concrete
295 //
296 pcpar[9] = pcpar[3]+(zRear-dRear-zAbsStart);
297 pcpar[10] = (zRear-dRear) * TMath::Tan(accMin);
298 pcpar[11] = (zRear-dRear) * TMath::Tan(accMax);
299 gMC->Gsvolu("ACON", "PCON", idtmed[fMLayers[0][2]+40], pcpar, 12);
300 gMC->Gspos("ACON", 1, "AITR", 0., 0., 0., 0, "ONLY");
301//
302// Fe Cone
303//
304 zr = zRear-dRear-dzFe;
305 cpar[0] = dzFe/2.;
306 cpar[1] = zr * TMath::Tan(accMin);
307 cpar[2] = zr * TMath::Tan(accMax);
308 cpar[3] = cpar[1] + TMath::Tan(accMin) * dzFe;
309 cpar[4] = cpar[2] + TMath::Tan(accMax) * dzFe;
310 gMC->Gsvolu("ACFE", "CONE",idtmed[fMLayers[0][3]], cpar, 5);
311
312 dz = (zRear-zAbsStart)/2.-dRear-dzFe/2.;
313
314 gMC->Gspos("ACFE", 1, "ACON", 0., 0., dz, 0, "ONLY");
315
316
317 //
318 //
319 // carbon cone: carbon
320 //
321 pcpar[9] = pcpar[3]+(zAbsCc-zAbsStart);
322 pcpar[10] = zAbsCc * TMath::Tan(accMin);
323 pcpar[11] = zAbsCc * TMath::Tan(accMax);
324 gMC->Gsvolu("ACAR", "PCON", idtmed[fMLayers[0][1]+40], pcpar, 12);
325 gMC->Gspos("ACAR", 1, "ACON", 0., 0., 0., 0, "ONLY");
326 //
327 // carbon cone outer region
328 //
329 cpar[0] = 10.;
330 cpar[1] = rAbs;
331 cpar[2] = zAbsStart* TMath::Tan(accMax);
332 cpar[3] = rAbs;
333 cpar[4] = cpar[2]+2. * cpar[0] * TMath::Tan(accMax);
334
335 gMC->Gsvolu("ACAO", "CONE", idtmed[fMLayers[0][1]], cpar, 5);
336 dz=-(zRear-zAbsStart)/2.+cpar[0];
337 gMC->Gspos("ACAO", 1, "ACAR", 0., 0., dz, 0, "ONLY");
338 //
339 // inner W shield
340 Float_t epsi=0.;
341 Float_t repsi=1.;
342
343 zr=zRear-(dRear-epsi);
344 cpar[0] = (dRear-epsi)/2.;
345 cpar[1] = zr * TMath::Tan(accMin);
346 cpar[2] = zr * TMath::Tan(thetaR*repsi);
347 cpar[3] = cpar[1] + TMath::Tan(accMin) * (dRear-epsi);
348 cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * (dRear-epsi);
349 gMC->Gsvolu("ARW0", "CONE", idtmed[fMLayers[1][4]+40], cpar, 5);
350 dz=(zRear-zAbsStart)/2.-cpar[0];
351 gMC->Gspos("ARW0", 1, "AITR", 0., 0., dz, 0, "ONLY");
352 //
353 // special W medium for last 5 cm of W
354 zr=zRear-5;
355 cpar[0] = 2.5;
356 cpar[1] = zr * TMath::Tan(accMin);
357 cpar[2] = zr * TMath::Tan(thetaR*repsi);
358 cpar[3] = cpar[1] + TMath::Tan(accMin) * 5.;
359 cpar[4] = cpar[2] + TMath::Tan(thetaR*repsi) * 5.;
360 gMC->Gsvolu("ARW1", "CONE", idtmed[fMLayers[1][4]+20], cpar, 5);
361 dz=(dRear-epsi)/2.-cpar[0];
362 gMC->Gspos("ARW1", 1, "ARW0", 0., 0., dz, 0, "ONLY");
363 //
364 // Cu
365 Float_t drMin=TMath::Tan(thetaR) * 5;
366 Float_t drMax=TMath::Tan(accMax) * 5;
367 gMC->Gsvolu("ARPE", "CONE", idtmed[fMLayers[0][4]], cpar, 0);
368 cpar[0]=2.5;
369 { // Begin local scope for i
370 for (Int_t i=0; i<3; i++) {
371 zr=zRear-dRear+5+i*10.;
372 cpar[1] = zr * TMath::Tan(thetaR);
373 cpar[2] = zr * TMath::Tan(accMax);
374 cpar[3] = cpar[1] + drMin;
375 cpar[4] = cpar[2] + drMax;
376 dz=(zRear-zAbsStart)/2.-cpar[0]-5.-(2-i)*10;
377 gMC->Gsposp("ARPE", i+1, "AITR", 0., 0., dz, 0, "ONLY",cpar,5);
378 }
379 } // End local scope for i
380 gMC->Gspos("AITR", 1, "ABSS", 0., 0., 0., 0, "ONLY");
381 dz = (zRear-zAbsStart)/2.+zAbsStart;
382 gMC->Gspos("ABSM", 1, "ALIC", 0., 0., dz, 0, "ONLY");
383//
384//
385// vacuum system
386//
387// pipe and heating jackets
388//
389//
390// cylindrical piece
391 tpar0[2]=(zOpen-zAbsStart)/2;
392 tpar0[0]=rVacu;
393 tpar0[1]=rVacu+dTube+dInsu+dEnve;
394 gMC->Gsvolu("AV11", "TUBE", idtmed[kSteel+40], tpar0, 3);
395//
396// insulation
397
398 tpar[2]=tpar0[2];
399 tpar[0]=rVacu+dTube;
400 tpar[1]=tpar[0]+dInsu;
401 gMC->Gsvolu("AI11", "TUBE", idtmed[kInsulation+40], tpar, 3);
402 gMC->Gspos("AI11", 1, "AV11", 0., 0., 0., 0, "ONLY");
403//
404 dz=-(zRear-zAbsStart)/2.+tpar0[2];
405 gMC->Gspos("AV11", 1, "ABSM", 0., 0., dz, 0, "ONLY");
406//
407// conical piece
408
409 cpar0[0]=(zRear-dRear-zOpen)/2;
410 cpar0[1]= rVacu-0.05;
411 cpar0[2]= rVacu+dTube+dInsu+dEnve;
412 Float_t dR=2.*cpar0[0]*TMath::Tan(thetaOpen1);
413 cpar0[3]=cpar0[1]+dR;
414 cpar0[4]=cpar0[2]+dR;
415 gMC->Gsvolu("AV21", "CONE", idtmed[kSteel+40], cpar0, 5);
416 dTube+=0.05;
417
418//
419// insulation
420 cpar[0]=cpar0[0];
421 cpar[1]=cpar0[1]+dTube;
422 cpar[2]=cpar0[1]+dTube+dInsu;
423 cpar[3]=cpar0[3]+dTube;
424 cpar[4]=cpar0[3]+dTube+dInsu;
425 gMC->Gsvolu("AI21", "CONE", idtmed[kInsulation+40], cpar, 5);
426 gMC->Gspos("AI21", 1, "AV21", 0., 0., 0., 0, "ONLY");
427
428 dz=(zRear-zAbsStart)/2.-cpar0[0]-dRear;
429 gMC->Gspos("AV21", 1, "ABSM", 0., 0., dz, 0, "ONLY");
430//
431// Support cone
432
433 par[0] = 22.5;
434 par[1] = 360.0;
435 par[2] = 8.0;
436 par[3] = 4.0;
437
438 par[4] = zRear;
439 par[5] = 100.;
440 par[6] = 170.;
441
442 par[7] = zRear+2.;
443 par[8] = 100.;
444 par[9] = 170.;
445
446 par[10] = zRear+2.;
447 par[11] = 168.;
448 par[12] = 170.;
449
450 par[13] = 600.;
451 par[14] = 168.;
452 par[15] = 170.;
453
454
455 gMC->Gsvolu("ASSS", "PGON", idtmed[kSteel], par, 16);
456 gMC->Gspos("ASSS", 1, "ALIC", 0., 0., 0., 0, "ONLY");
457
458 Float_t trap[11];
459 trap[ 0] = (530.-170.)/2.;
460 trap[ 2] = 0.;
461 trap[ 3] = 2.;
462 trap[ 4] = (600.-(zRear+2.))/2.;;
463 trap[ 5] = trap[4];
464 trap[ 6] = 0.;
465 trap[ 7] = 2.;
466 trap[ 8] = 5.;
467 trap[ 9] = 5.;
468 trap[10] = 0.;
469 trap[ 1] = -TMath::ATan((trap[4]-trap[8])/2./trap[0])*180./TMath::Pi();
470 AliMatrix(idrotm[1600], 180., 0., 90., 0., 90., 90.);
471 AliMatrix(idrotm[1601], 180., 0., 90., 0., 90., 270.);
472 gMC->Gsvolu("ASST", "TRAP", idtmed[kSteel], trap, 11);
473 dz = (600.+zRear+2.)/2.+(trap[4]-trap[8])/2.;
474 Float_t dy = 170.+trap[0];
475
476 gMC->Gspos("ASST", 1, "ALIC", 0., dy, dz, idrotm[1600], "ONLY");
477 gMC->Gspos("ASST", 2, "ALIC", 0., -dy, dz, idrotm[1601], "ONLY");
478}
479
480//_____________________________________________________________________________
481
482void AliABSOv0::Init()
483{
484 //
485 // Initialisation of the muon absorber after it has been built
486 Int_t i;
487 //
488 if(fDebug) {
489 printf("\n%s: ",ClassName());
490 for(i=0;i<35;i++) printf("*");
491 printf(" ABSOv0_INIT ");
492 for(i=0;i<35;i++) printf("*");
493 printf("\n%s: ",ClassName());
494 //
495 for(i=0;i<80;i++) printf("*");
496 printf("\n");
497 }
498}
499
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