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257726e6 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/* $Id$ */
17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// Experimental Hall //
21// This class contains the description of the experimental hall //
22// and the shielding blocks. //
23// Author: Andreas Morsch //
24// andreas.morsch@cern.ch //
25// //
26///////////////////////////////////////////////////////////////////////////////
27
28#include <TVirtualMC.h>
29
30#include "AliConst.h"
31#include "AliHALLv3.h"
32#include "AliMagF.h"
33#include "AliRun.h"
34#include "AliLog.h"
5b37b1dd 35#include "AliMC.h"
36#include "AliTrackReference.h"
257726e6 37#include <TGeoVolume.h>
38#include <TGeoManager.h>
39#include <TGeoMatrix.h>
40#include <TGeoCompositeShape.h>
41#include <TGeoBBox.h>
42#include <TGeoTube.h>
43#include <TGeoPgon.h>
44#include <TGeoPcon.h>
45#include <TGeoCone.h>
46#include <TGeoTrd1.h>
47#include <TGeoArb8.h>
48
49ClassImp(AliHALL)
50
51//_____________________________________________________________________________
a612ec56 52AliHALLv3::AliHALLv3() : fNewShield24(0), fRefVolumeId(-1), fScoring(0), fRackShield(0)
257726e6 53{
54 //
55 // Default constructor for the experimental Hall
56 //
57}
58
59//_____________________________________________________________________________
60AliHALLv3::AliHALLv3(const char *name, const char *title)
a612ec56 61 : AliHALL(name,title), fNewShield24(0), fRefVolumeId(-1), fScoring(0), fRackShield(0)
257726e6 62{
63 //
64 // Standard constructor for the experimental Hall
65 //
66
67}
68
69//_____________________________________________________________________________
70void AliHALLv3::CreateGeometry()
71{
72 //
73 // Create the geometry of the exprimental hall
74 //
75 Float_t r2, dy;
76 Float_t phid, phim, h, r;
77 Float_t w1, dh, am, bm, dl,cm, hm, dr, dx, xl;
78 Float_t hullen;
79 Float_t phi;
80
81 // The top volume
82 //
83 TGeoVolume* top = gGeoManager->GetVolume("ALIC");
84 TGeoVolumeAssembly* asHall = new TGeoVolumeAssembly("HALL");
85
86 // Rotations
87 // rotation by 90 deg in the y-z plane
a8241b4f 88 TGeoRotation* rot000 = new TGeoRotation("rot000", 90., 0.,180., 0., 90., 90.);
89 TGeoRotation* rot001 = new TGeoRotation("rot001", 270., 0., 90., 90., 180., 0.);
257726e6 90
91 // Materials
92 TGeoMedium* kMedCC = gGeoManager->GetMedium("HALL_CC_C2");
93 TGeoMedium* kMedST = gGeoManager->GetMedium("HALL_STST_C2");
ffb3970c 94 TGeoMedium* kMedAir = gGeoManager->GetMedium("HALL_AIR_C2");
a612ec56 95 TGeoMedium* kMedFe = gGeoManager->GetMedium("HALL_FE_C2");
ffb3970c 96
257726e6 97 // Floor thickness
98 Float_t dyFloor = 190.;
99 // Floor width
100 Float_t dxFloor = 1400.;
101 // Floor level
102 Float_t yFloor = -801.;
103 // Pit centre
104 Float_t zPit = 2300.;
105 // Pit radius
106 Float_t rPit = 1140.;
107 // Hall end
108 Float_t zHall24 = 1700.;
109 Float_t zHall26 = 1900.;
110 // Overlap between hall and pit radius
111 Float_t oPit = zHall24 - (zPit - rPit);
112 // Length of the L3 floor
113 Float_t dzL3 = 1700.;
114 // Start of hall roof in y
115 Float_t yHall = 500.;
116 // Radius of the hall roof
117 Float_t rHall = 1070.;
118 //
119 Float_t epsBig = 100.;
120 Float_t epsSmall = 1.;
121
122
123
124 //
125 // RB24/26 Tunnel Floor
126 r = 220.;
127 h = 140.;
128 phi = TMath::ACos(h / r);
129 xl = r * TMath::Sin(phi);
130 dr = 1600.;
131 dh = dr * TMath::Cos(phi);
132 dl = dr * TMath::Sin(phi);
133 if (gAlice->GetModule("ZDC") == 0) {
134 // No ZDC
135 hullen = 370.;
136 } else {
137
138 // ZDC is present
139 hullen = 6520.;
140 }
141
142 TGeoVolume* voHUFL = new TGeoVolume("HUFL",
143 new TGeoTrd1(xl +dl, xl, hullen, dh / 2.),
144 kMedCC);
145 r2 = hullen + zHall26;
2787cdf0 146 asHall->AddNode(voHUFL, 1, new TGeoCombiTrans(70., -100. - dh / 2., -r2 - 0.755, rot000));
ffb3970c 147
257726e6 148 //
149 // RB24/26 wall
ffb3970c 150 phid = phi * kRaddeg;
257726e6 151 TGeoVolume* voHUWA = new TGeoVolume("HUWA",
4cb05f41 152 new TGeoTubeSeg(r, r+dr, hullen, phid - 90. + 0.002, 270. - phid - 0.002),
257726e6 153 kMedCC);
4cb05f41 154 asHall->AddNode(voHUWA, 1, new TGeoTranslation(70., 40., -zHall26 - hullen + 0.002 ));
ffb3970c 155 //
156 // Air inside tunnel
157 TGeoTube* shHUWAT1 = new TGeoTube(0., r, hullen);
158 shHUWAT1->SetName("shHUWAT1");
159 //
160 // Space for ZDC
161 TGeoBBox* shHUWAT2 = new TGeoBBox(70., 110., hullen + 20.);
162 shHUWAT2->SetName("shHUWAT2");
163 TGeoTranslation* tHUWAT2 = new TGeoTranslation("tHUWAT2", -70., -30., 0.);
164 tHUWAT2->RegisterYourself();
165
166 TGeoBBox* shHUWAT3 = new TGeoBBox(270., 110., hullen + 20.);
167 shHUWAT3->SetName("shHUWAT3");
168 TGeoTranslation* tHUWAT3 = new TGeoTranslation("tHUWAT3", 0., -110. - 140., 0.);
169 tHUWAT3->RegisterYourself();
170
171 TGeoCompositeShape* shHUWAT = new TGeoCompositeShape("HUWAT", "(shHUWAT1-shHUWAT2:tHUWAT2)-shHUWAT3:tHUWAT3");
172 TGeoVolume* voHUWAT = new TGeoVolume("HUWAT", shHUWAT, kMedAir);
2787cdf0 173 asHall->AddNode(voHUWAT, 1, new TGeoTranslation(70., 40., -zHall26 - hullen - 0.755));
ffb3970c 174
257726e6 175 //
176 // Hall floor
177 // RB26 side
178 phid = 16.197;
179 Float_t dzFloor26 = zHall26 - dzL3/2.;
4cb05f41 180 TGeoBBox* shHHF1 = new TGeoBBox(dxFloor/2. + 470., dyFloor/2., dzFloor26/2. - 0.002);
257726e6 181 shHHF1->SetName("shHHF1");
182 TGeoVolume* voHHF1 = new TGeoVolume("HHF1", shHHF1, kMedCC);
183 asHall->AddNode(voHHF1, 2, new TGeoTranslation(0., yFloor, -(dzL3/2. + dzFloor26/2.)));
184 // RB24 side
185 Float_t dzFloor24 = zHall24 - dzL3/2.;
186 TGeoBBox* shHHF41 = new TGeoBBox(dxFloor/2. + 470., dyFloor/2., dzFloor24/2.);
187 shHHF41->SetName("shHHF41");
188 TGeoTube* shHHF42 = new TGeoTube(0., rPit + epsBig, dyFloor/2.);
189 shHHF42->SetName("shHHF42");
190 TGeoCombiTrans* trHHF42 = new TGeoCombiTrans("trHHF42", 0., 0., dzFloor24/2. + rPit - oPit, rot000);
191 trHHF42->RegisterYourself();
192
193 TGeoCompositeShape* shHHF4 = new TGeoCompositeShape("HHF4", "shHHF41+shHHF42:trHHF42");
194 TGeoVolume* voHHF4 = new TGeoVolume("HHF4", shHHF4, kMedCC);
195 asHall->AddNode(voHHF4, 1, new TGeoTranslation(0., yFloor, dzL3/2. + dzFloor24/2.));
196
197
198 //
199 // Hall side walls
200 Float_t trH1 = (1273.78 - dyFloor)/ 2.;
201 Float_t trBL1 = 207.3;
202 Float_t trTL1 = 50.;
203 Float_t trALP1 = TMath::ATan((trBL1 - trTL1) / 2. / trH1) * kRaddeg;
204 dx = 1.5 * trBL1 - 0.5 * trTL1 + dxFloor/2. + dyFloor * TMath::Tan(phid * kDegrad);
205 TGeoVolume* voHHW11 = new TGeoVolume("HHW11",
4cb05f41 206 new TGeoTrap(dzFloor26/2. - 0.002, 0., 0.,
257726e6 207 trH1, trBL1, trTL1, trALP1, trH1, trBL1, trTL1, trALP1),
208 kMedCC);
209 TGeoVolume* voHHW12 = new TGeoVolume("HHW12",
210 new TGeoTrap(dzFloor24/2., 0., 0.,
211 trH1, trBL1, trTL1, trALP1, trH1, trBL1, trTL1, trALP1),
212 kMedCC);
213
214 dy = yFloor + dyFloor/2. + trH1;
215
216 asHall->AddNode(voHHW12, 1, new TGeoTranslation( dx, dy, (dzL3/2. + dzFloor24/2.)));
217 asHall->AddNode(voHHW12, 2, new TGeoCombiTrans (-dx, dy, (dzL3/2. + dzFloor24/2.), rot001));
4cb05f41 218 asHall->AddNode(voHHW11, 1, new TGeoTranslation( dx, dy, -(dzL3/2. + dzFloor26/2.)));
219 asHall->AddNode(voHHW11, 2, new TGeoCombiTrans (-dx, dy, -(dzL3/2. + dzFloor26/2.), rot001));
257726e6 220
221 Float_t boDY = (yHall - (yFloor + dyFloor/2.) - 2. * trH1)/ 2.;
222 Float_t dzHall = zHall26 + zHall24;
223
4cb05f41 224 TGeoVolume* voHBW1 = new TGeoVolume("HBW1", new TGeoBBox(50., boDY, dzHall / 2. - 0.05), kMedCC);
257726e6 225
226 asHall->AddNode(voHBW1, 1, new TGeoTranslation( 1120., yHall - boDY, (zHall24-zHall26)/2.));
227 asHall->AddNode(voHBW1, 2, new TGeoTranslation(-1120., yHall - boDY, (zHall24-zHall26)/2.));
228
229 //
230 // Slanted wall close to L3 magnet
ffb3970c 231 //
257726e6 232 phim = 45.;
233 hm = 790.;
234 am = hm * TMath::Tan(phim / 2. * kDegrad);
235 bm = (hm + 76.) / hm * am;
236 cm = bm * 2. / TMath::Sqrt(2.);
4cb05f41 237 trH1 = (1273.78 - cm) / 2. - 0.002;
257726e6 238 trBL1 = 235. - cm * TMath::Tan(phid * kDegrad) / 2.;
239 trTL1 = 50.;
240 trALP1 = TMath::ATan((trBL1 - trTL1) / 2. / trH1) * kRaddeg;
241
242 w1 = trBL1;
243 dx = cm * TMath::Tan(phid * kDegrad) + dxFloor/2. + trBL1 * 1.5 - trTL1 * .5;
244
245 TGeoVolume* voHHW2 = new TGeoVolume("HHW2",
4cb05f41 246 new TGeoTrap(dzL3/2. - 0.002, 0., 0.,
257726e6 247 trH1, trBL1, trTL1, trALP1, trH1, trBL1, trTL1, trALP1),
248 kMedCC);
249
250 r2 = cm + yFloor - dyFloor/2. + trH1;
251
252 asHall->AddNode(voHHW2, 1, new TGeoTranslation(dx, r2, 0.));
253 asHall->AddNode(voHHW2, 2, new TGeoCombiTrans(-dx, r2, 0., rot001));
254
255 trH1 = cm / 2.;
256 trBL1 = w1 + cm / 2.;
257 trTL1 = w1;
258 trALP1 = TMath::ATan(.5) * kRaddeg;
259 dx = 1170. - trBL1 * .5 - trTL1 * .5;
260
261 TGeoVolume* voHHW3 = new TGeoVolume("HHW3",
262 new TGeoTrap(dzL3/2., 0., 0.,
263 trH1, trBL1, trTL1, trALP1, trH1, trBL1, trTL1, trALP1),
264 kMedCC);
265
266 r2 = trH1 - 896.;
267 asHall->AddNode(voHHW3, 1, new TGeoTranslation( dx, r2, 0.));
268 asHall->AddNode(voHHW3, 2, new TGeoCombiTrans (-dx, r2, 0., rot001));
269 //
270 // Floor L3
271 Float_t dyFloorL3 = 76.;
272 Float_t dx1FloorL3 = rHall + epsBig - 2. * trBL1;
273 Float_t dx2FloorL3 = dx1FloorL3 + TMath::Tan(phim * kDegrad) * dyFloorL3;
274
275
276 TGeoVolume* voHHF2 = new TGeoVolume("HHF2",
97f8df2e 277 new TGeoTrd1(dx1FloorL3 - 0.5, dx2FloorL3 - 0.5, dzL3/2., dyFloorL3/2.),
257726e6 278 kMedCC);
279
b1ccf85a 280 asHall->AddNode(voHHF2, 1, new TGeoCombiTrans(0., yFloor - dyFloor / 2. + dyFloorL3 / 2. - 0.5,0., rot000));
257726e6 281 //
282 // Tunnel roof and pit
283 // Roof
284 TGeoTubeSeg* shHHC11 = new TGeoTubeSeg(rHall, rHall + 100., dzHall / 2., 0., 180.);
285 shHHC11->SetName("shHHC11");
286 // Pit
287 TGeoTube* shHHC12 = new TGeoTube(rPit, rPit + 100., 1000.);
288 shHHC12->SetName("shHHC12");
289 // Pit inside
290 TGeoTube* shHHC13 = new TGeoTube( 0, rPit - epsSmall, 1000.);
291 shHHC13->SetName("shHHC13");
292 // Roof inside
293 TGeoTubeSeg* shHHC14 = new TGeoTubeSeg(0., rHall, dzHall / 2. + epsBig, 0., 180.);
294 shHHC14->SetName("shHHC14");
295
296 TGeoCombiTrans* trHHC = new TGeoCombiTrans("trHHC", 0., 1000., dzHall/2. + rPit - oPit, rot000);
297 trHHC->RegisterYourself();
298 TGeoCompositeShape* shHHC1 = new TGeoCompositeShape("HHC1", "shHHC11+shHHC12:trHHC-(shHHC14+shHHC13:trHHC)");
299 TGeoVolume* voHHC1 = new TGeoVolume("HHC1", shHHC1, kMedCC);
300
301 asHall->AddNode(voHHC1, 1, new TGeoTranslation(0., yHall, -(zHall26-zHall24)/2.));
302
303
304 //
305 // Pit wall ground level
957fe2c9 306 dy = yFloor + 1206. / 2. + dyFloor/2.;
257726e6 307 TGeoTube* shHHCPW1 = new TGeoTube(rPit, rPit + 100., 1206./2.);
308 shHHCPW1->SetName("shHHCPW1");
309 TGeoCombiTrans* trHHCPW1 = new TGeoCombiTrans("trHHCPW1", 0., 0., 0., rot000);
310 trHHCPW1->RegisterYourself();
311
312 TGeoBBox* shHHCPW2 = new TGeoBBox(rPit + 100., 1206./ 2. + 20., rPit + 100.);
313 shHHCPW2->SetName("shHHCPW2");
957fe2c9 314
315 TGeoTube* shHHCPW3 = new TGeoTube(0., 60., 60.);
316 shHHCPW3->SetName("shHHCPW3");
257726e6 317
318
319 TGeoTranslation* trHHCPW2 = new TGeoTranslation("trHHCPW2", 0., 0., -(rPit + 100.) - oPit);
320 trHHCPW2->RegisterYourself();
321
957fe2c9 322 TGeoTranslation* trHHCPW3 = new TGeoTranslation("trHHCPW3", 0., -dy, rPit + 50.);
323 trHHCPW3->RegisterYourself();
324
325 TGeoCompositeShape* shHHCPW
326 = new TGeoCompositeShape("HHCPW", "shHHCPW1:trHHCPW1-(shHHCPW2:trHHCPW2+shHHCPW3:trHHCPW3)");
257726e6 327 TGeoVolume* voHHCPW = new TGeoVolume("HHCPW", shHHCPW, kMedCC);
957fe2c9 328
257726e6 329 asHall->AddNode(voHHCPW, 1, new TGeoTranslation(0., dy, 2300.));
330 //
331 // Foundations of the Muon Spectrometer
332 // Drawing ALIP2A_0110
333 //
334 TGeoVolumeAssembly* asFMS = new TGeoVolumeAssembly("asFMS");
335 Float_t zFil = -1465.86 - 60.;
336 // Muon Filter Foundation
337 // Pillars
338 dy = 263.54/2.;
339 Float_t ys = yFloor + dyFloor / 2.;
340 TGeoVolume* voFmsMfPil = new TGeoVolume("FmsMfPil", new TGeoBBox( 50., dy, 165.), kMedCC);
341 ys += dy;
342 asFMS->AddNode(voFmsMfPil, 1, new TGeoTranslation(-330. + 50., ys, zFil + 165. - 90.));
343 asFMS->AddNode(voFmsMfPil, 2, new TGeoTranslation( 330. - 50., ys, zFil + 165 - 90.));
344 //
345 // Transverse bars
346 ys += dy;
b8bb2f2a 347 dy = 91.32/2.;
257726e6 348 ys += dy;
97f8df2e 349 TGeoVolume* voFmsMfTb1 = new TGeoVolume("FmsMfTb1", new TGeoBBox(330., dy, 60.), kMedCC);
257726e6 350 asFMS->AddNode(voFmsMfTb1, 1, new TGeoTranslation(0., ys, zFil));
351 ys += dy;
352 dy = 41.14/2.;
353 ys += dy;
354 TGeoVolume* voFmsMfTb2 = new TGeoVolume("FmsMfTb2", new TGeoBBox(330., dy, 60.), kMedCC);
355 asFMS->AddNode(voFmsMfTb2, 1, new TGeoTranslation(0., ys, zFil));
356 //
357 // Dipole foundation
358 ys = yFloor + dyFloor / 2.;
ca3e9926 359 dy = (263.54 - 6.2)/2.;
257726e6 360 ys += dy;
361 TGeoVolume* voFmsDf1 = new TGeoVolume("FmsDf1", new TGeoBBox(370., dy, 448.0 / 2.), kMedCC);
362 asFMS->AddNode(voFmsDf1, 1, new TGeoTranslation(0., ys, zFil + 240. + 224.));
363 TGeoVolume* voFmsDf2 = new TGeoVolume("FmsDf2", new TGeoBBox(370., (263.54 + 110.)/2., 112.0 / 2.), kMedCC);
364 asFMS->AddNode(voFmsDf2, 1, new TGeoTranslation(0., ys - 110./2., zFil + 688. + 56.));
365
366 //
367 // Shielding in front of L3 magnet in PX24 and UX25
368 // Drawing ALIP2I__0016
369 //
370
371 TGeoVolumeAssembly* asShRb24 = new TGeoVolumeAssembly("ShRb24");
372 //
373 // Side walls
374 // start 7450 from IP
375 TGeoVolume* voShRb24Sw = new TGeoVolume("ShRb24Sw", new TGeoBBox(80., 420., 520.), kMedCC);
376 asShRb24->AddNode(voShRb24Sw, 1, new TGeoTranslation(+315, -420. + 140., 0.));
377 asShRb24->AddNode(voShRb24Sw, 2, new TGeoTranslation(-315, -420. + 140., 0.));
378 //
379 // Roof
380 TGeoVolume* voShRb24Ro = new TGeoVolume("ShRb24Ro", new TGeoBBox(395., 80., 520.), kMedCC);
381 asShRb24->AddNode(voShRb24Ro, 1, new TGeoTranslation(0., +80. + 140., 0.));
382 //
84e3df3e 383 // Concrete Plug
257726e6 384 TGeoBBox* shShRb24Pl1 = new TGeoBBox(235., 140., 40.);
385 shShRb24Pl1->SetName("ShRb24Pl1");
84e3df3e 386 // Steel Plug
387 TGeoBBox* shShRb24Pl4 = new TGeoBBox(15., 20., 40.);
388 shShRb24Pl4->SetName("ShRb24Pl4");
389
390 TGeoBBox* shShRb24Pl41 = new TGeoBBox(15., 20., 45.);
391 shShRb24Pl41->SetName("ShRb24Pl41");
392
257726e6 393 //
394 // Opening for beam pipe
84e3df3e 395 Float_t dxShRb24Pl = 14.5;
396 Float_t dyShRb24Pl = 20.0;
397 if (fNewShield24) {
398 dxShRb24Pl = 6.;
399 dyShRb24Pl = 6.;
400 }
401 TGeoBBox* shShRb24Pl2 = new TGeoBBox(dxShRb24Pl, dyShRb24Pl, 60.);
257726e6 402 shShRb24Pl2->SetName("ShRb24Pl2");
403 //
404 // Opening for tubes
405 TGeoBBox* shShRb24Pl3 = new TGeoBBox(20., 60., 60.);
406 shShRb24Pl3->SetName("ShRb24Pl3");
407
408 TGeoTranslation* trPl3 = new TGeoTranslation("trPl3", +235. -90., 80., 0.);
409 trPl3->RegisterYourself();
84e3df3e 410
411 TGeoTranslation* trPl4 = new TGeoTranslation("trPl4", 0., -6., 0.);
412 trPl4->RegisterYourself();
413 TGeoTranslation* trPl5 = new TGeoTranslation("trPl5", 0., +6., 0.);
414 trPl5->RegisterYourself();
415
416 TGeoCompositeShape* shRb24Pl = 0;
417 TGeoCompositeShape* shRb24PlSS = 0;
418 if (!fNewShield24) {
419 shRb24Pl = new TGeoCompositeShape("Rb24Pl", "ShRb24Pl1-ShRb24Pl2:trPl4-ShRb24Pl3:trPl3");
420 } else {
421 shRb24Pl = new TGeoCompositeShape("Rb24Pl", "ShRb24Pl1-(ShRb24Pl41:trPl4+ShRb24Pl3:trPl3)");
422 shRb24PlSS = new TGeoCompositeShape("Rb24PlSS", "ShRb24Pl4-ShRb24Pl2:trPl5");
423 }
424
257726e6 425 TGeoVolume* voRb24Pl = new TGeoVolume("Rb24Pl", shRb24Pl, kMedCC);
84e3df3e 426
257726e6 427 asShRb24->AddNode(voRb24Pl, 1, new TGeoTranslation(0., 0., 520. - 40.));
84e3df3e 428 if (fNewShield24) {
429 TGeoVolume* voRb24PlSS = new TGeoVolume("Rb24PlSS", shRb24PlSS, kMedST);
430 asShRb24->AddNode(voRb24PlSS, 1, new TGeoTranslation(0., -6., 520. - 40.));
431 }
432
257726e6 433
434 //
435 // Concrete platform and shielding PX24
436 // Drawing LHCJUX 250014
437 //
438 TGeoVolumeAssembly* asShPx24 = new TGeoVolumeAssembly("ShPx24");
439 // Platform
440 TGeoVolume* voShPx24Pl = new TGeoVolume("ShPx24Pl", new TGeoBBox(1613.5/2., 120./2., 1205./2.), kMedCC);
441 asShPx24->AddNode(voShPx24Pl, 1, new TGeoTranslation(55., -140. - 60., 0.));
442 // Pillars
443 TGeoVolume* voShPx24Pi = new TGeoVolume("ShPx24Pi", new TGeoBBox(160./2., 440./2., 40/2.), kMedCC);
444 asShPx24->AddNode(voShPx24Pi, 1, new TGeoTranslation(-180. - 80., -220. -260., 1205./2. - 20.));
445 asShPx24->AddNode(voShPx24Pi, 2, new TGeoTranslation(+290. + 80., -220. -260., 1205./2. - 20.));
446 asShPx24->AddNode(voShPx24Pi, 3, new TGeoTranslation(-180. - 80., -220. -260., -1205./2. + 20. + 120.));
447 asShPx24->AddNode(voShPx24Pi, 4, new TGeoTranslation(+290. + 80., -220. -260., -1205./2. + 20. + 120.));
448 asShPx24->AddNode(voShPx24Pi, 5, new TGeoTranslation(-180. - 80., -220. -260., -1205./2. - 20. + 480.));
449 asShPx24->AddNode(voShPx24Pi, 6, new TGeoTranslation(+290. + 80., -220. -260., -1205./2. - 20. + 480.));
450 asShPx24->AddNode(voShPx24Pi, 7, new TGeoTranslation(-180. - 80., -220. -260., -1205./2. - 20. + 800.));
451 asShPx24->AddNode(voShPx24Pi, 8, new TGeoTranslation(+290. + 80., -220. -260., -1205./2. - 20. + 800.));
452 // Side Walls
453 TGeoVolume* voShPx24Sw = new TGeoVolume("ShPx24Sw", new TGeoBBox(160./2., 280./2., 1205./2.), kMedCC);
454 asShPx24->AddNode(voShPx24Sw, 1, new TGeoTranslation(-180, 0., 0.));
455 asShPx24->AddNode(voShPx24Sw, 2, new TGeoTranslation(+290, 0., 0.));
456 // Roof
457 TGeoVolume* voShPx24Ro = new TGeoVolume("ShPx24Ro", new TGeoBBox(630./2., 160./2., 1205./2.), kMedCC);
458 asShPx24->AddNode(voShPx24Ro, 1, new TGeoTranslation(55., 80.+ 140., 0.));
459 asHall->AddNode(asShRb24, 1, new TGeoTranslation(0., 0., +745. + 520.));
460 asHall->AddNode(asShPx24, 1, new TGeoTranslation(0., 0., +745. + 1040. + 1205./ 2.));
461 // Stainless Steel Plug 80 cm thick
462 TGeoBBox* shShPx24Pl1 = new TGeoBBox(155., 140., 40.);
463 shShPx24Pl1->SetName("ShPx24Pl1");
464 // Opening for beam pipe
84e3df3e 465 Float_t dxPx24Pl2 = 9.5;
466 Float_t dyPx24Pl2 = 14.0;
467 // Option for new shielding closer to the beam pipe
468 if (fNewShield24) {
469 dxPx24Pl2 = 6.;
470 dyPx24Pl2 = 6.;
471 }
472 //
473 TGeoBBox* shShPx24Pl2 = new TGeoBBox(dxPx24Pl2, dyPx24Pl2, 60.);
257726e6 474 shShPx24Pl2->SetName("ShPx24Pl2");
84e3df3e 475 TGeoTranslation* trPl2 = new TGeoTranslation("trPl2", -55., 0., 0.);
c9017ad7 476 trPl2->RegisterYourself();
477
478 TGeoCompositeShape* shPx24Pl = new TGeoCompositeShape("Px24Pl", "ShPx24Pl1-ShPx24Pl2:trPl2");
257726e6 479 TGeoVolume* voPx24Pl = new TGeoVolume("Px24Pl", shPx24Pl, kMedST);
480 asShPx24->AddNode(voPx24Pl, 1, new TGeoTranslation(55., 0., -1205./2. + 40.));
481 asHall->AddNode(asFMS, 1, new TGeoTranslation(0., 0., 0.));
5b37b1dd 482
483 //
484 // Scoring plane for beam background simulations
257726e6 485 //
5b37b1dd 486 TGeoVolume* voRB24Scoring = new TGeoVolume("RB24Scoring", new TGeoTube(4.3, 300., 1.), kMedAir);
487 asHall->AddNode(voRB24Scoring, 1, new TGeoTranslation(0., 0., 735.));
488 //
a612ec56 489 // Extra shielding in front of racks
490 //
491 if (fRackShield) {
492 TGeoVolume* voRackShield = new TGeoVolume("RackShield", new TGeoBBox(30., 125., 50.), kMedFe);
493 asHall->AddNode(voRackShield, 1, new TGeoTranslation(85., -495., 1726.));
494 }
495 //
257726e6 496 top->AddNode(asHall, 1, gGeoIdentity);
497
498}
5b37b1dd 499
500void AliHALLv3::Init()
501{
502 //
503 // Initialise the module after the geometry has been defined
504 //
505 if(AliLog::GetGlobalDebugLevel()>0) {
506 printf("%s: **************************************"
507 " HALL "
508 "**************************************\n",ClassName());
509 printf("\n%s: Version 3 of HALL initialised\n\n",ClassName());
510 printf("%s: **************************************"
511 " HALL "
512 "**************************************\n",ClassName());
513 }
514//
515// The reference volume id
2942f542 516 fRefVolumeId = TVirtualMC::GetMC()->VolId("RB24Scoring");
5b37b1dd 517}
518
519void AliHALLv3::StepManager()
520{
521//
522// Stepmanager of AliHALLv2
523// Used for recording of reference tracks entering scoring plane
524//
525 if (!fScoring) return;
526 Int_t copy, id;
527
528 //
529 // Only charged tracks
2942f542 530 if( !(TVirtualMC::GetMC()->TrackCharge()) ) return;
5b37b1dd 531 //
532 // Only tracks entering mother volume
533 //
534
2942f542 535 id=TVirtualMC::GetMC()->CurrentVolID(copy);
5b37b1dd 536
537 if ((id != fRefVolumeId)) return;
2942f542 538 if(!TVirtualMC::GetMC()->IsTrackEntering()) return;
5b37b1dd 539 //
540 // Add the reference track
541 //
542 AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber(), AliTrackReference::kHALL);
543}
544