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Corrected conversion float -> int
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20c7dbe5 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// The small angle absorber SAA (beam shield)
20// Author: A.Morsch
21// andreas.morsch@cern.ch
22//-------------------------------------------------------------------------
23
24#include <TVirtualMC.h>
25#include <TArrayI.h>
26#include <TGeoVolume.h>
27#include <TGeoTube.h>
28#include <TGeoManager.h>
29#include <TGeoMatrix.h>
30#include <TGeoCompositeShape.h>
31#include <TGeoBBox.h>
32#include <TGeoPgon.h>
33#include <TGeoCone.h>
34
35#include "AliSHILv3.h"
36#include "AliConst.h"
37#include "AliLog.h"
38
39ClassImp(AliSHILv3)
40
41//_____________________________________________________________________________
42AliSHILv3::AliSHILv3()
43{
44 //
45 // Default constructor for muon shield
46 //
47}
48
49//_____________________________________________________________________________
50AliSHILv3::AliSHILv3(const char *name, const char *title)
51 : AliSHIL(name,title)
52{
53 //
54 // Standard constructor for muon shield
55 //
20c7dbe5 56}
57
58//_____________________________________________________________________________
59void AliSHILv3::CreateGeometry()
60{
61//
62// The geometry of the small angle absorber "Beam Shield"
63//
64 Float_t dz, dr, z, rmax;
65//
66// The top volume
67//
68 TGeoVolume* top = gGeoManager->GetVolume("ALIC");
69
70//
71// Translations
72//
73 TGeoTranslation* vec0 = new TGeoTranslation(0., 0., 0.);
74// Rotations
75 TGeoRotation* rot000 = new TGeoRotation("rot000", 90., 0., 90., 90., 0., 0.);
76 TGeoRotation* rot090 = new TGeoRotation("rot090", 90., 90., 90., 180., 0., 0.);
77 TGeoRotation* rot180 = new TGeoRotation("rot180", 90., 180., 90., 270., 0., 0.);
78 TGeoRotation* rot270 = new TGeoRotation("rot270", 90., 270., 90., 0., 0., 0.);
79//
80// Media
81//
82 TGeoMedium* kMedNiW = gGeoManager->GetMedium("SHIL_Ni/W0");
83 TGeoMedium* kMedNiWsh = gGeoManager->GetMedium("SHIL_Ni/W3");
84 TGeoMedium* kMedSteel = gGeoManager->GetMedium("SHIL_ST_C0");
85 TGeoMedium* kMedSteelSh = gGeoManager->GetMedium("SHIL_ST_C3");
86 TGeoMedium* kMedAir = gGeoManager->GetMedium("SHIL_AIR_C0");
87 TGeoMedium* kMedAirMu = gGeoManager->GetMedium("SHIL_AIR_MUON");
88 TGeoMedium* kMedPb = gGeoManager->GetMedium("SHIL_PB_C0");
89 TGeoMedium* kMedPbSh = gGeoManager->GetMedium("SHIL_PB_C2");
90 TGeoMedium* kMedConc = gGeoManager->GetMedium("SHIL_CC_C0");
91//
92 const Float_t kDegRad = TMath::Pi() / 180.;
93 const Float_t kAngle02 = TMath::Tan( 2.00 * kDegRad);
94 const Float_t kAngle0071 = TMath::Tan( 0.71 * kDegRad);
95
96
97///////////////////////////////////
98// FA Tungsten Tail //
99// Drawing ALIP2A__0049 //
100// Drawing ALIP2A__0111 //
101///////////////////////////////////
102//
103// The tail as built is shorter than in drawing ALIP2A__0049.
104// The CDD data base has to be updated !
105//
106// Inner radius at the entrance of the flange
107 Float_t rInFaWTail1 = 13.98/2.;
108// Outer radius at the entrance of the flange
109 Float_t rOuFaWTail1 = 52.00/2.;
110// Outer radius at the end of the section inside the FA
111 Float_t rOuFaWTail2 = 35.27/2.;
112// Length of the Flange section inside the FA
113 Float_t dzFaWTail1 = 6.00;
114// Length of the Flange section ouside the FA
115 Float_t dzFaWTail2 = 12.70;
116// Inner radius at the end of the section inside the FA
117 Float_t rInFaWTail2 = rInFaWTail1 + dzFaWTail1 * kAngle0071;
118// Inner radius at the end of the flange
119 Float_t rInFaWTail3 = rInFaWTail2 + dzFaWTail2 * kAngle0071;
120// Outer radius at the end of the flange
121 Float_t rOuFaWTail3 = rOuFaWTail2 + dzFaWTail2 * kAngle02;
122// Outer radius of the recess for station 1
123 Float_t rOuFaWTailR = 30.8/2.;
124// Length of the recess
125 Float_t dzFaWTailR = 36.00;
126// Inner radiues at the end of the recess
127 Float_t rInFaWTail4 = rInFaWTail3 + dzFaWTailR * kAngle0071;
128// Outer radius at the end of the recess
129 Float_t rOuFaWTail4 = rOuFaWTail3 + dzFaWTailR * kAngle02;
130// Inner radius of the straight section
131 Float_t rInFaWTailS = 22.30/2.;
132// Length of the bulge
133 Float_t dzFaWTailB = 13.0;
134// Outer radius at the end of the bulge
135 Float_t rOuFaWTailB = rOuFaWTail4 + dzFaWTailB * kAngle02;
136// Outer radius at the end of the tail
137 Float_t rOuFaWTailE = 31.6/2.;
138// Total length of the tail
139 Float_t dzFaWTail = 70.7;
140
141 TGeoPcon* shFaWTail = new TGeoPcon(0., 360., 10);
142 z = 0.;
143// Flange section inside FA
144 shFaWTail->DefineSection(0, z, rInFaWTail1, rOuFaWTail1);
145 z += dzFaWTail1;
146 shFaWTail->DefineSection(1, z, rInFaWTail2, rOuFaWTail1);
147 shFaWTail->DefineSection(2, z, rInFaWTail2, rOuFaWTail2);
148// Flange section outside FA
149 z += dzFaWTail2;
150 shFaWTail->DefineSection(3, z, rInFaWTail3, rOuFaWTail3);
151 shFaWTail->DefineSection(4, z, rInFaWTail3, rOuFaWTailR);
152// Recess Station 1
153 z += dzFaWTailR;
154 shFaWTail->DefineSection(5, z, rInFaWTail4, rOuFaWTailR);
155 shFaWTail->DefineSection(6, z, rInFaWTailS, rOuFaWTail4);
156// Bulge
157 z += dzFaWTailB;
158 shFaWTail->DefineSection(7, z, rInFaWTailS, rOuFaWTailB);
159 shFaWTail->DefineSection(8, z, rInFaWTailS, rOuFaWTailE);
160// End
161 z = dzFaWTail;
162 shFaWTail->DefineSection(9, z, rInFaWTailS, rOuFaWTailE);
163
164 TGeoVolume* voFaWTail = new TGeoVolume("YFaWTail", shFaWTail, kMedNiW);
165//
166// Define an inner region with higher transport cuts
167 TGeoPcon* shFaWTailI = new TGeoPcon(0., 360., 4);
168 z = 0.;
169 dr = 3.5;
170 shFaWTailI->DefineSection(0, z, rInFaWTail1, rInFaWTail1 + dr);
171 z += (dzFaWTail1 + dzFaWTail2 + dzFaWTailR);
172 shFaWTailI->DefineSection(1, z, rInFaWTail4, rInFaWTail4 + dr);
173 shFaWTailI->DefineSection(2, z, rInFaWTailS, rInFaWTailS + dr);
174 z = dzFaWTail;
175 shFaWTailI->DefineSection(3, z, rInFaWTailS, rInFaWTailS + dr);
176 TGeoVolume* voFaWTailI = new TGeoVolume("YFaWTailI", shFaWTailI, kMedNiWsh);
177 voFaWTail->AddNode(voFaWTailI, 1, vec0);
178
179///////////////////////////////////
180// //
181// Recess Station 1 //
182// Drawing ALIP2A__0260 //
183///////////////////////////////////
184
185///////////////////////////////////
186// FA W-Ring 2 //
187// Drawing ALIP2A__0220 //
188///////////////////////////////////
189 const Float_t kFaWring2Rinner = 15.40;
190 const Float_t kFaWring2Router = 18.40;
191 const Float_t kFaWring2HWidth = 3.75;
192 const Float_t kFaWring2Cutoffx = 3.35;
193 const Float_t kFaWring2Cutoffy = 3.35;
194 TGeoTubeSeg* shFaWring2a = new TGeoTubeSeg(kFaWring2Rinner, kFaWring2Router, kFaWring2HWidth, 0., 90.);
195 shFaWring2a->SetName("shFaWring2a");
196 TGeoBBox* shFaWring2b = new TGeoBBox(kFaWring2Router / 2., kFaWring2Router / 2., kFaWring2HWidth);
197 shFaWring2b->SetName("shFaWring2b");
198 TGeoTranslation* trFaWring2b
199 = new TGeoTranslation("trFaWring2b", kFaWring2Router / 2. + kFaWring2Cutoffx, kFaWring2Router / 2. + kFaWring2Cutoffy, 0.);
200 trFaWring2b->RegisterYourself();
201 TGeoCompositeShape* shFaWring2 = new TGeoCompositeShape("shFaWring2", "(shFaWring2a)*(shFaWring2b:trFaWring2b)");
202 TGeoVolume* voFaWring2 = new TGeoVolume("YFA_WRING2", shFaWring2, kMedNiW);
203
204///////////////////////////////////
205// FA W-Ring 3 //
206// Drawing ALIP2A__0219 //
207///////////////////////////////////
208 const Float_t kFaWring3Rinner = 15.40;
209 const Float_t kFaWring3Router = 18.40;
210 const Float_t kFaWring3HWidth = 3.75;
211 const Float_t kFaWring3Cutoffx = 3.35;
212 const Float_t kFaWring3Cutoffy = 3.35;
213 TGeoTubeSeg* shFaWring3a = new TGeoTubeSeg(kFaWring3Rinner, kFaWring3Router, kFaWring3HWidth, 0., 90.);
214 shFaWring3a->SetName("shFaWring3a");
215 TGeoBBox* shFaWring3b = new TGeoBBox(kFaWring3Router / 2., kFaWring3Router / 2., kFaWring3HWidth);
216 shFaWring3b->SetName("shFaWring3b");
217 TGeoTranslation* trFaWring3b
218 = new TGeoTranslation("trFaWring3b", kFaWring3Router / 2. + kFaWring3Cutoffx, kFaWring3Router / 2. + kFaWring3Cutoffy, 0.);
219 trFaWring3b->RegisterYourself();
220 TGeoCompositeShape* shFaWring3 = new TGeoCompositeShape("shFaWring3", "(shFaWring3a)*(shFaWring3b:trFaWring3b)");
221 TGeoVolume* voFaWring3 = new TGeoVolume("YFA_WRING3", shFaWring3, kMedNiW);
222
223///////////////////////////////////
224// FA W-Ring 5 //
225// Drawing ALIP2A__0221 //
226///////////////////////////////////
227 const Float_t kFaWring5Rinner = 15.40;
228 const Float_t kFaWring5Router = 18.67;
229 const Float_t kFaWring5HWidth = 1.08;
230 TGeoVolume* voFaWring5 = new TGeoVolume("YFA_WRING5", new TGeoTube(kFaWring5Rinner, kFaWring5Router, kFaWring5HWidth), kMedNiW);
231
232//
233// Position the rings in the assembly
234//
235 TGeoVolumeAssembly* asFaExtraShield = new TGeoVolumeAssembly("YCRE");
236// Distance between rings
237 const Float_t kFaDWrings = 1.92;
238//
239 dz = 0.;
240
241 dz += kFaWring2HWidth;
242 asFaExtraShield->AddNode(voFaWring2, 1, new TGeoCombiTrans(0., 0., dz, rot090));
243 asFaExtraShield->AddNode(voFaWring2, 2, new TGeoCombiTrans(0., 0., dz, rot270));
244 dz += kFaWring2HWidth;
245 dz += kFaDWrings;
246 dz += kFaWring3HWidth;
247 asFaExtraShield->AddNode(voFaWring3, 1, new TGeoCombiTrans(0., 0., dz, rot000));
248 asFaExtraShield->AddNode(voFaWring3, 2, new TGeoCombiTrans(0., 0., dz, rot180));
249 dz += kFaWring3HWidth;
250 dz += kFaWring5HWidth;
251 asFaExtraShield->AddNode(voFaWring5, 1, new TGeoTranslation(0., 0., dz));
252 dz += kFaWring5HWidth;
253 dz += kFaWring3HWidth;
254 asFaExtraShield->AddNode(voFaWring3, 3, new TGeoCombiTrans(0., 0., dz, rot090));
255 asFaExtraShield->AddNode(voFaWring3, 4, new TGeoCombiTrans(0., 0., dz, rot270));
256 dz += kFaWring3HWidth;
257 dz += kFaDWrings;
258 dz += kFaWring2HWidth;
259 asFaExtraShield->AddNode(voFaWring2, 3, new TGeoCombiTrans(0., 0., dz, rot000));
260 asFaExtraShield->AddNode(voFaWring2, 4, new TGeoCombiTrans(0., 0., dz, rot180));
261 dz += kFaWring2HWidth;
262
263
264///////////////////////////////////////
265// SAA1 //
266///////////////////////////////////////
267
268
269///////////////////////////////////////
270// FA/SAA1 W Joint //
271// Drawing ALIP2A__0060 //
272///////////////////////////////////////
273
274// Length of flange FA side
275 Float_t dzFaSaa1F1 = 2.8;
276// Inner radius of flange FA side
277 Float_t rInFaSaa1F1 = 32.0/2.;
278// Outer radius of flange FA side
279 Float_t rOuFaSaa1F1 = 39.5/2.;
280// Length of first straight section
281 Float_t dzFaSaa1S1 = 18.5 - dzFaSaa1F1;
282// Inner radius of first straight section
283 Float_t rInFaSaa1S1 = 22.3/2.;
284// Length of 45 deg transition region
285 Float_t dzFaSaa1T1 = 2.2;
286// Inner radius of second straight section
287 Float_t rInFaSaa1S2 = 17.9/2.;
288// Length of second straight section
289 Float_t dzFaSaa1S2 = 10.1;
290// Length of flange SAA1 side
291// Float_t dzFaSaa1F2 = 4.0;
292// Inner radius of flange FA side
293 Float_t rInFaSaa1F2 = 25.2/2.;
294// Length of joint
295 Float_t dzFaSaa1 = 34.8;
296// Outer Radius at the end of the joint
297 Float_t rOuFaSaa1E = 41.93/2.;
298
299
300 TGeoPcon* shFaSaa1 = new TGeoPcon(0., 360., 8);
301 z = 0;
302// Flange FA side
303 shFaSaa1->DefineSection( 0, z, rInFaSaa1F1, rOuFaSaa1F1);
304 z += dzFaSaa1F1;
305 shFaSaa1->DefineSection( 1, z, rInFaSaa1F1, 40.0);
306 shFaSaa1->DefineSection( 2, z, rInFaSaa1S1, 40.0);
307// First straight section
308 z += dzFaSaa1S1;
309 shFaSaa1->DefineSection( 3, z, rInFaSaa1S1, 40.0);
310// 45 deg transition region
311 z += dzFaSaa1T1;
312 shFaSaa1->DefineSection( 4, z, rInFaSaa1S2, 40.0);
313// Second straight section
314 z += dzFaSaa1S2;
315 shFaSaa1->DefineSection( 5, z, rInFaSaa1S2, 40.0);
316 shFaSaa1->DefineSection( 6, z, rInFaSaa1F2, 40.0);
317// Flange SAA1 side
318 z = dzFaSaa1;
319 shFaSaa1->DefineSection( 7, z, rInFaSaa1F2, rOuFaSaa1E);
320
321// Outer 2 deg line
322 for (Int_t i = 1; i < 7; i++) {
323 Double_t z = shFaSaa1->GetZ(i);
324 Double_t r1 = shFaSaa1->GetRmin(i);
325 Double_t r2 = 39.5/2. + z * TMath::Tan(2. * kDegRad) - 0.01;
326 shFaSaa1->DefineSection(i, z, r1, r2);
327 }
328 TGeoVolume* voFaSaa1 = new TGeoVolume("YFASAA1", shFaSaa1, kMedNiWsh);
329//
330// Outer region with lower transport cuts
331 TGeoCone* shFaSaa1O = new TGeoCone(dzFaSaa1/2., rOuFaSaa1F1 - 3.5, rOuFaSaa1F1, rOuFaSaa1E - 3.5, rOuFaSaa1E);
332 TGeoVolume* voFaSaa1O = new TGeoVolume("YFASAA1O", shFaSaa1O, kMedNiW);
333 voFaSaa1->AddNode(voFaSaa1O, 1, new TGeoTranslation(0., 0., dzFaSaa1/2.));
334
335
336///////////////////////////////////
337// SAA1 Steel Envelope //
338// Drawing ALIP2A__0039 //
339///////////////////////////////////
340
341 Float_t rOut; // Outer radius
342// Thickness of the steel envelope
343 Float_t dSt = 4.;
344// 4 Section
345// z-positions
346 Float_t zSaa1StEnv[5] = {111.2, 113.7, 229.3, 195.0};
347// Radii
348// 1
349 Float_t rOuSaa1StEnv1 = 40.4/2.;
350 Float_t rInSaa1StEnv1 = rOuSaa1StEnv1 - dSt;
351// 2
352 Float_t rInSaa1StEnv2 = 41.7/2.;
353 Float_t rOuSaa1StEnv2 = rInSaa1StEnv2 + dSt / TMath::Cos(2.0 * kDegRad);
354// 3
355 Float_t rOuSaa1StEnv3 = 57.6/2.;
356 Float_t rInSaa1StEnv3 = rOuSaa1StEnv3 - dSt;
357// 4
358 Float_t rInSaa1StEnv4 = 63.4/2.;
359 Float_t rOuSaa1StEnv4 = rInSaa1StEnv4 + dSt / TMath::Cos(1.6 * kDegRad);
360// end
361 Float_t rInSaa1StEnv5 = 74.28/2.;
362 Float_t rOuSaa1StEnv5 = rInSaa1StEnv5 + dSt / TMath::Cos(1.6 * kDegRad);
363// Relative starting position
364 Float_t zSaa1StEnvS = 3.;
365
366 TGeoPcon* shSaa1StEnv = new TGeoPcon(0., 360., 11);
367// 1st Section
368 z = zSaa1StEnvS;
369 shSaa1StEnv->DefineSection( 0, z, rInSaa1StEnv1, rOuSaa1StEnv1);
370 z += (zSaa1StEnv[0] - dSt);
371 shSaa1StEnv->DefineSection( 1, z, rInSaa1StEnv1, rOuSaa1StEnv1);
372// 1 - 2
373 shSaa1StEnv->DefineSection( 2, z, rInSaa1StEnv1, rOuSaa1StEnv2);
374 z += dSt;
375 shSaa1StEnv->DefineSection( 3, z, rInSaa1StEnv1, rOuSaa1StEnv2);
376// 2nd Section
377 shSaa1StEnv->DefineSection( 4, z, rInSaa1StEnv2, rOuSaa1StEnv2);
378 z += zSaa1StEnv[1];
379 shSaa1StEnv->DefineSection( 5, z, rInSaa1StEnv3, rOuSaa1StEnv3);
380// 3rd Section
381 z += (zSaa1StEnv[2] - dSt);
382 shSaa1StEnv->DefineSection( 6, z, rInSaa1StEnv3, rOuSaa1StEnv3);
383// 3 - 4
384 shSaa1StEnv->DefineSection( 7, z, rInSaa1StEnv3, rOuSaa1StEnv4);
385 z += dSt;
386 shSaa1StEnv->DefineSection( 8, z, rInSaa1StEnv3, rOuSaa1StEnv4);
387// 4th Section
388 shSaa1StEnv->DefineSection( 9, z, rInSaa1StEnv4, rOuSaa1StEnv4);
389 z += zSaa1StEnv[3];
390 shSaa1StEnv->DefineSection(10, z, rInSaa1StEnv5, rOuSaa1StEnv5);
391 TGeoVolume* voSaa1StEnv = new TGeoVolume("YSAA1_SteelEnvelope", shSaa1StEnv, kMedSteel);
392
393
394
395
396
397///////////////////////////////////
398// SAA1 W-Pipe //
399// Drawing ALIP2A__0059 //
400///////////////////////////////////
401//
402// Flange FA side
403// Length of first section
404 Float_t dzSaa1WPipeF1 = 0.9;
405// Outer radius
406 Float_t rOuSaa1WPipeF1 = 24.5/2.;
407// Inner Radius
408 Float_t rInSaa1WPipeF1 = 22.0/2.;
409// Length of second section
410 Float_t dzSaa1WPipeF11 = 2.1;
411// Inner Radius
412 Float_t rInSaa1WPipeF11 = 18.5/2.;
413//
414// Central tube
415// Length
416 Float_t dzSaa1WPipeC = 111.2;
417// Inner Radius at the end
418 Float_t rInSaa1WPipeC = 22.0/2.;
419// Outer Radius
420 Float_t rOuSaa1WPipeC = 31.9/2.;
421//
422// Flange SAA2 Side
423// Length
424 Float_t dzSaa1WPipeF2 = 6.0;
425// Outer radius
426 Float_t rOuSaa1WPipeF2 = 41.56/2.;
427
428//
429 TGeoPcon* shSaa1WPipe = new TGeoPcon(0., 360., 8);
430 z = 0.;
431// Flange FA side first section
432 shSaa1WPipe->DefineSection( 0, z, rInSaa1WPipeF1 , rOuSaa1WPipeF1);
433 z += dzSaa1WPipeF1;
434 shSaa1WPipe->DefineSection( 1, z, rInSaa1WPipeF1 , rOuSaa1WPipeF1);
435// Flange FA side second section
436 shSaa1WPipe->DefineSection( 2, z, rInSaa1WPipeF11, rOuSaa1WPipeF1);
437 z += dzSaa1WPipeF11;
438 shSaa1WPipe->DefineSection( 3, z, rInSaa1WPipeF11, rOuSaa1WPipeF1);
439// Central Section
440 shSaa1WPipe->DefineSection( 4, z, rInSaa1WPipeF11, rOuSaa1WPipeC);
441 z += dzSaa1WPipeC;
442 shSaa1WPipe->DefineSection( 5, z, rInSaa1WPipeC, rOuSaa1WPipeC);
443// Flange SAA2 side
444 shSaa1WPipe->DefineSection( 6, z, rInSaa1WPipeC, rOuSaa1WPipeF2);
445 z += dzSaa1WPipeF2;
446 shSaa1WPipe->DefineSection( 7, z, rInSaa1WPipeC, rOuSaa1WPipeF2);
447
448 TGeoVolume* voSaa1WPipe = new TGeoVolume("YSAA1_WPipe", shSaa1WPipe, kMedNiW);
449//
450// Inner region with higher transport cuts
451 TGeoTube* shSaa1WPipeI = new TGeoTube(rInSaa1WPipeC, rOuSaa1WPipeC, dzSaa1WPipeC/2.);
452 TGeoVolume* voSaa1WPipeI = new TGeoVolume("YSAA1_WPipeI", shSaa1WPipeI, kMedNiWsh);
453 voSaa1WPipe->AddNode(voSaa1WPipeI, 1, new TGeoTranslation(0., 0., dzSaa1WPipeF1 + dzSaa1WPipeF11 + dzSaa1WPipeC/2));
454
455
456///////////////////////////////////
457// SAA1 Pb Components //
458// Drawing ALIP2A__0078 //
459///////////////////////////////////
460//
461// Inner angle
462 Float_t tanAlpha = TMath::Tan(1.69 / 2. * kDegRad);
463 Float_t tanBeta = TMath::Tan(3.20 / 2. * kDegRad);
464//
465// 1st Section 2deg opening cone
466// Length
467 Float_t dzSaa1PbComp1 = 100.23;
468// Inner radius at entrance
469 Float_t rInSaa1PbComp1 = 22.0/2.; // It's 21 cm diameter in the drawing. Is this a typo ??!!
470// Outer radius at entrance
471 Float_t rOuSaa1PbComp1 = 42.0/2.;
472//
473// 2nd Section: Straight Section
474// Length
475 Float_t dzSaa1PbComp2 = 236.77;
476// Inner radius
477 Float_t rInSaa1PbComp2 = rInSaa1PbComp1 + dzSaa1PbComp1 * tanAlpha;
478// Outer radius
479 Float_t rOuSaa1PbComp2 = 49.0/2.;
480//
481// 3rd Section: 1.6deg opening cone until bellow
482// Length
483 Float_t dzSaa1PbComp3 = 175.6;
484// Inner radius
485 Float_t rInSaa1PbComp3 = rInSaa1PbComp2 + dzSaa1PbComp2 * tanAlpha;
486// Outer radius
487 Float_t rOuSaa1PbComp3 = 62.8/2.;
488//
489// 4th Section: Bellow region
490 Float_t dzSaa1PbComp4 = 26.4;
491// Inner radius
492 Float_t rInSaa1PbComp4 = 37.1/2.;
493 Float_t rInSaa1PbCompB = 43.0/2.;
494// Outer radius
495 Float_t rOuSaa1PbComp4 = rOuSaa1PbComp3 + dzSaa1PbComp3 * tanBeta;
496//
497// 5th Section: Flange SAA2 side
498// 1st detail
499 Float_t dzSaa1PbCompF1 = 4.;
500 Float_t rOuSaa1PbCompF1 = 74.1/2.;
501// 2nd detail
502 Float_t dzSaa1PbCompF2 = 3.;
503 Float_t rOuSaa1PbCompF2 = 66.0/2.;
504 Float_t rOuSaa1PbCompF3 = 58.0/2.;
505
506
507 TGeoPcon* shSaa1PbComp = new TGeoPcon(0., 360., 11);
508 z = 120.2;
509// 2 deg opening cone
510 shSaa1PbComp->DefineSection( 0, z, rInSaa1PbComp1, rOuSaa1PbComp1);
511 z += dzSaa1PbComp1;
512 shSaa1PbComp->DefineSection( 1, z, rInSaa1PbComp2, rOuSaa1PbComp2);
513// Straight section
514 z += dzSaa1PbComp2;
515 shSaa1PbComp->DefineSection( 2, z, rInSaa1PbComp3, rOuSaa1PbComp2);
516// 1.6 deg opening cone
517 shSaa1PbComp->DefineSection( 3, z, rInSaa1PbComp3, rOuSaa1PbComp3);
518 z += dzSaa1PbComp3;
519 shSaa1PbComp->DefineSection( 4, z, rInSaa1PbComp4, rOuSaa1PbComp4);
520// Bellow region until outer flange
521 shSaa1PbComp->DefineSection( 5, z, rInSaa1PbCompB, rOuSaa1PbComp4);
522 z += (dzSaa1PbComp4 - dzSaa1PbCompF1 - dzSaa1PbCompF2);
523 shSaa1PbComp->DefineSection( 6, z, rInSaa1PbCompB, rOuSaa1PbCompF1);
524 shSaa1PbComp->DefineSection( 7, z, rInSaa1PbCompB, rOuSaa1PbCompF2);
525// Flange first step
526 z += dzSaa1PbCompF1;
527 shSaa1PbComp->DefineSection( 8, z, rInSaa1PbCompB, rOuSaa1PbCompF2);
528 shSaa1PbComp->DefineSection( 9, z, rInSaa1PbCompB, rOuSaa1PbCompF3);
529// Flange second step
530 z += dzSaa1PbCompF2;
531 shSaa1PbComp->DefineSection( 10, z, rInSaa1PbCompB, rOuSaa1PbCompF3);
532
533 TGeoVolume* voSaa1PbComp = new TGeoVolume("YSAA1_PbComp", shSaa1PbComp, kMedPb);
534//
535// Inner region with higher transport cuts
536 TGeoPcon* shSaa1PbCompI = MakeShapeFromTemplate(shSaa1PbComp, 0., -3.);
537 TGeoVolume* voSaa1PbCompI = new TGeoVolume("YSAA1_PbCompI", shSaa1PbCompI, kMedPbSh);
538 voSaa1PbComp->AddNode(voSaa1PbCompI, 1, vec0);
539
540///////////////////////////////////
541// SAA1 W-Cone //
542// Drawing ALIP2A__0058 //
543///////////////////////////////////
544 // Length of the Cone
545 Float_t dzSaa1WCone = 52.9;
546 // Inner and outer radii
547 Float_t rInSaa1WCone1 = 20.4;
548 Float_t rOuSaa1WCone1 = rInSaa1WCone1 + 0.97;
549 Float_t rOuSaa1WCone2 = rInSaa1WCone1 + 2.80;
550 // relative z-position
551 Float_t zSaa1WCone = 9.3;
552
553
554 TGeoPcon* shSaa1WCone = new TGeoPcon(0., 360., 2);
555 z = zSaa1WCone;
556 shSaa1WCone->DefineSection( 0, z, rInSaa1WCone1, rOuSaa1WCone1);
557 z += dzSaa1WCone;
558 shSaa1WCone->DefineSection( 1, z, rInSaa1WCone1, rOuSaa1WCone2);
559 TGeoVolume* voSaa1WCone = new TGeoVolume("YSAA1_WCone", shSaa1WCone, kMedNiW);
560
561///////////////////////////////////
562// SAA1 Steel-Ring //
563// Drawing ALIP2A__0040 //
564///////////////////////////////////
565//
566// Length of the ring
567 Float_t dzSaa1StRing = 4.;
568// Inner and outer radius
569 Float_t rInSaa1String = 33.0;
570 Float_t rOuSaa1String = 41.1;
571// Relative z-position
572 Float_t zSaa1StRing = 652.2;
573 TGeoPcon* shSaa1StRing = new TGeoPcon(0., 360., 2);
574 z = zSaa1StRing;
575 shSaa1StRing->DefineSection( 0, z, rInSaa1String, rOuSaa1String);
576 z += dzSaa1StRing;
577 shSaa1StRing->DefineSection( 1, z, rInSaa1String, rOuSaa1String);
578 TGeoVolume* voSaa1StRing = new TGeoVolume("YSAA1_StRing", shSaa1StRing, kMedSteel);
579
580///////////////////////////////////
581// SAA1 Inner Tube //
582// Drawing ALIP2A__0082 //
583///////////////////////////////////
584//
585// Length of saa2: 659.2 cm
586// Length of inner tube: 631.9 cm
587// Lenth of bellow cavern: 27.3 cm
588// Radius at entrance 18.5/2, d = 0.3
589// Radius at exit 37.1/2, d = 0.3
590//
591 Float_t dzSaa1InnerTube = 631.9/2.; // Half length of the tube
592 Float_t rInSaa1InnerTube = 18.2/2.; // Radius at entrance
593 Float_t rOuSaa1InnerTube = 36.8/2.; // Radius at exit
594 Float_t dSaa1InnerTube = 0.2 ; // Thickness
595 TGeoVolume* voSaa1InnerTube = new TGeoVolume("YSAA1_InnerTube",
596 new TGeoCone(dzSaa1InnerTube,
597 rInSaa1InnerTube - dSaa1InnerTube, rInSaa1InnerTube,
598 rOuSaa1InnerTube - dSaa1InnerTube, rOuSaa1InnerTube),
599 kMedSteelSh);
600
601///////////////////////////////////
602// SAA1 Outer Shape //
603// Drawing ALIP2A__0107 //
604///////////////////////////////////
605 // Total length
606 Float_t dzSaa1 = 659.2;
607 //
608 TGeoPcon* shSaa1M = new TGeoPcon(0., 360., 20);
609 Float_t kSec = 0.01; // security distance to avoid trivial extrusions
610 Float_t rmin = rInSaa1InnerTube - dSaa1InnerTube - kSec;
611 rmax = rOuSaa1InnerTube - dSaa1InnerTube - kSec;
612 z = 0.;
613 shSaa1M->DefineSection( 0, z, rmin, rOuSaa1WPipeF1);
614 z += dzSaa1WPipeF1;
615 shSaa1M->DefineSection( 1, z, rmin, rOuSaa1WPipeF1);
616 shSaa1M->DefineSection( 2, z, 0., rOuSaa1WPipeF1);
617 z += dzSaa1WPipeF11;
618 shSaa1M->DefineSection( 3, z, 0., rOuSaa1WPipeF1);
619 shSaa1M->DefineSection( 4, z, 0., rOuSaa1StEnv1);
620 z = zSaa1WCone;
621 shSaa1M->DefineSection( 5, z, 0., rOuSaa1StEnv1);
622 shSaa1M->DefineSection( 6, z, 0., rOuSaa1WCone1);
623 z += dzSaa1WCone;
624 shSaa1M->DefineSection( 7, z, 0., rOuSaa1WCone2);
625 shSaa1M->DefineSection( 8, z, 0., rOuSaa1StEnv1);
626 z = zSaa1StEnv[0] - dSt + zSaa1StEnvS;
627 shSaa1M->DefineSection( 9, z, 0., rOuSaa1StEnv1);
628 shSaa1M->DefineSection(10, z, 0., rOuSaa1StEnv2);
629 z += (zSaa1StEnv[1] + dSt);
630 shSaa1M->DefineSection(11, z, 0., rOuSaa1StEnv3);
631 z += (zSaa1StEnv[2] - dSt);
632 shSaa1M->DefineSection(12, z, 0., rOuSaa1StEnv3);
633 shSaa1M->DefineSection(13, z, 0., rOuSaa1StEnv4);
634
635 z += (zSaa1StEnv[3] - dSt + dzSaa1PbCompF1 + dzSaa1PbCompF2 - dzSaa1PbComp4);
636 Float_t rmaxSaa1 = shSaa1M->GetRmax(13) + (z - shSaa1M->GetZ(13)) * TMath::Tan(1.6 * kDegRad);
637
638 shSaa1M->DefineSection(14, z, 0., rmaxSaa1);
639 shSaa1M->DefineSection(15, z, rmax, rmaxSaa1);
640 z = zSaa1StRing;
641 shSaa1M->DefineSection(16, z, rmax, rOuSaa1String);
642 z += dzSaa1PbCompF1;
643 shSaa1M->DefineSection(17, z, rmax, rOuSaa1String);
644 shSaa1M->DefineSection(18, z, rmax, rOuSaa1PbCompF3);
645 z += dzSaa1PbCompF2;
646 shSaa1M->DefineSection(19, z, rmax, rOuSaa1PbCompF3);
647
648//
649// Inner 1.69deg line
650 for (Int_t i = 2; i < 15; i++) {
651 Double_t z = shSaa1M->GetZ(i);
652 Double_t r2 = shSaa1M->GetRmax(i);
653 Double_t r1 = rmin + (z - 0.9) * TMath::Tan(1.69 / 2. * kDegRad) - kSec;
654 shSaa1M->DefineSection(i, z, r1, r2);
655 }
656
657 TGeoVolume* voSaa1M = new TGeoVolume("YSAA1M", shSaa1M, kMedAir);
658
659
660///////////////////////////////////
661// //
662// Recess Station 2 //
663// Drawing ALIP2A__0260 //
664///////////////////////////////////
665///////////////////////////////////
666// SAA1 W-Ring 1 //
667// Drawing ALIP2A__0217 //
668///////////////////////////////////
669 Float_t saa1Wring1Width = 5.85;
670 TGeoPcon* shSaa1Wring1 = new TGeoPcon(0., 360., 2);
671 shSaa1Wring1->DefineSection(0, 0.00 , 20.30, 23.175);
672 shSaa1Wring1->DefineSection(1, saa1Wring1Width, 20.30, 23.400);
673 TGeoVolume* voSaa1Wring1 = new TGeoVolume("YSAA1_WRING1", shSaa1Wring1, kMedNiW);
674
675///////////////////////////////////
676// SAA1 W-Ring 2 //
677// Drawing ALIP2A__0055 //
678///////////////////////////////////
679 Float_t saa1Wring2Rinner = 20.30;
680 Float_t saa1Wring2Router = 23.40;
681 Float_t saa1Wring2HWidth = 3.75;
682 Float_t saa1Wring2Cutoffx = 4.45;
683 Float_t saa1Wring2Cutoffy = 4.45;
684 TGeoTubeSeg* shSaa1Wring2a = new TGeoTubeSeg(saa1Wring2Rinner, saa1Wring2Router, saa1Wring2HWidth, 0., 90.);
685 shSaa1Wring2a->SetName("shSaa1Wring2a");
686 TGeoBBox* shSaa1Wring2b = new TGeoBBox(saa1Wring2Router / 2., saa1Wring2Router / 2., saa1Wring2HWidth);
687 shSaa1Wring2b->SetName("shSaa1Wring2b");
688 TGeoTranslation* trSaa1Wring2b
689 = new TGeoTranslation("trSaa1Wring2b", saa1Wring2Router / 2. + saa1Wring2Cutoffx, saa1Wring2Router / 2. + saa1Wring2Cutoffy, 0.);
690 trSaa1Wring2b->RegisterYourself();
691 TGeoCompositeShape* shSaa1Wring2 = new TGeoCompositeShape("shSaa1Wring2", "(shSaa1Wring2a)*(shSaa1Wring2b:trSaa1Wring2b)");
692 TGeoVolume* voSaa1Wring2 = new TGeoVolume("YSAA1_WRING2", shSaa1Wring2, kMedNiW);
693
694///////////////////////////////////
695// SAA1 W-Ring 3 //
696// Drawing ALIP2A__0216 //
697///////////////////////////////////
698
699 Float_t saa1Wring3Rinner = 20.30;
700 Float_t saa1Wring3Router = 23.40;
701 Float_t saa1Wring3HWidth = 3.75;
702 Float_t saa1Wring3Cutoffx = 4.50;
703 Float_t saa1Wring3Cutoffy = 4.40;
704 TGeoTubeSeg* shSaa1Wring3a = new TGeoTubeSeg(saa1Wring3Rinner, saa1Wring3Router, saa1Wring3HWidth, 0., 90.);
705 shSaa1Wring3a->SetName("shSaa1Wring3a");
706 TGeoBBox* shSaa1Wring3b = new TGeoBBox(saa1Wring3Router / 2., saa1Wring3Router / 2., saa1Wring3HWidth);
707 shSaa1Wring3b->SetName("shSaa1Wring3b");
708 TGeoTranslation* trSaa1Wring3b
709 = new TGeoTranslation("trSaa1Wring3b", saa1Wring3Router / 2. + saa1Wring3Cutoffx, saa1Wring3Router / 2. + saa1Wring3Cutoffy, 0.);
710 trSaa1Wring3b->RegisterYourself();
711 TGeoCompositeShape* shSaa1Wring3 = new TGeoCompositeShape("shSaa1Wring3", "(shSaa1Wring3a)*(shSaa1Wring3b:trSaa1Wring3b)");
712 TGeoVolume* voSaa1Wring3 = new TGeoVolume("YSAA1_WRING3", shSaa1Wring3, kMedNiW);
713
714///////////////////////////////////
715// SAA1 W-Ring 4 //
716// Drawing ALIP2A__0215 //
717///////////////////////////////////
718 Float_t saa1Wring4Width = 5.85;
719 TGeoPcon* shSaa1Wring4 = new TGeoPcon(0., 360., 5);
720 shSaa1Wring4->DefineSection(0, 0.00, 20.30, 23.40);
721 shSaa1Wring4->DefineSection(1, 1.00, 20.30, 23.40);
722 shSaa1Wring4->DefineSection(2, 1.00, 20.30, 24.50);
723 shSaa1Wring4->DefineSection(3, 4.85, 20.30, 24.80);
724 shSaa1Wring4->DefineSection(4, 5.85, 24.10, 24.80);
725 TGeoVolume* voSaa1Wring4 = new TGeoVolume("YSAA1_WRING4", shSaa1Wring4, kMedNiW);
726
727///////////////////////////////////
728// SAA1 W-Ring 5 //
729// Drawing ALIP2A__0218 //
730///////////////////////////////////
731 Float_t saa1Wring5Rinner = 20.30;
732 Float_t saa1Wring5Router = 23.40;
733 Float_t saa1Wring5HWidth = 0.85;
734 TGeoVolume* voSaa1Wring5 = new TGeoVolume("YSAA1_WRING5",
735 new TGeoTube(saa1Wring5Rinner, saa1Wring5Router, saa1Wring5HWidth), kMedNiW);
736//
737// Position the rings in the assembly
738//
739 TGeoVolumeAssembly* asSaa1ExtraShield = new TGeoVolumeAssembly("YSAA1ExtraShield");
740// Distance between rings
741 Float_t saa1DWrings = 2.3;
742//
743 dz = - (saa1Wring1Width + 6. * saa1Wring2HWidth + 2. * saa1Wring3HWidth + saa1Wring4Width + 2. * saa1Wring5HWidth + 2. * saa1DWrings) / 2.;
744 asSaa1ExtraShield->AddNode(voSaa1Wring1, 1, new TGeoTranslation(0., 0., dz));
745 dz += saa1Wring1Width;
746 dz += saa1Wring2HWidth;
747 asSaa1ExtraShield->AddNode(voSaa1Wring2, 1, new TGeoCombiTrans(0., 0., dz, rot000));
748 asSaa1ExtraShield->AddNode(voSaa1Wring2, 2, new TGeoCombiTrans(0., 0., dz, rot180));
749 dz += saa1Wring2HWidth;
750 dz += saa1DWrings;
751 dz += saa1Wring2HWidth;
752 asSaa1ExtraShield->AddNode(voSaa1Wring2, 3, new TGeoCombiTrans(0., 0., dz, rot090));
753 asSaa1ExtraShield->AddNode(voSaa1Wring2, 4, new TGeoCombiTrans(0., 0., dz, rot270));
754 dz += saa1Wring2HWidth;
755 dz += saa1Wring5HWidth;
756 asSaa1ExtraShield->AddNode(voSaa1Wring5, 1, new TGeoTranslation(0., 0., dz));
757 dz += saa1Wring5HWidth;
758 dz += saa1Wring2HWidth;
759 asSaa1ExtraShield->AddNode(voSaa1Wring2, 5, new TGeoCombiTrans(0., 0., dz, rot000));
760 asSaa1ExtraShield->AddNode(voSaa1Wring2, 6, new TGeoCombiTrans(0., 0., dz, rot180));
761 dz += saa1Wring2HWidth;
762 dz += saa1DWrings;
763 dz += saa1Wring3HWidth;
764 asSaa1ExtraShield->AddNode(voSaa1Wring3, 1, new TGeoCombiTrans(0., 0., dz, rot090));
765 asSaa1ExtraShield->AddNode(voSaa1Wring3, 2, new TGeoCombiTrans(0., 0., dz, rot270));
766 dz += saa1Wring3HWidth;
767 asSaa1ExtraShield->AddNode(voSaa1Wring4, 1, new TGeoTranslation(0., 0., dz));
768 dz += saa1Wring4Width;
769 const Float_t saa1ExtraShieldL = 48;
770//
771// Assemble SAA1
772 voSaa1M->AddNode(voSaa1StEnv, 1, vec0);
773 voSaa1M->AddNode(voSaa1WPipe, 1, vec0);
774 voSaa1M->AddNode(voSaa1PbComp, 1, vec0);
775 voSaa1M->AddNode(voSaa1WCone, 1, vec0);
776 voSaa1M->AddNode(voSaa1StRing, 1, vec0);
777 voSaa1M->AddNode(voSaa1InnerTube, 1, new TGeoTranslation(0., 0., dzSaa1InnerTube + 0.9));
778 TGeoVolumeAssembly* voSaa1 = new TGeoVolumeAssembly("YSAA1");
779 voSaa1->AddNode(voSaa1M, 1, vec0);
780
781///////////////////////////////////////
782// SAA1/SAA2 Pb Joint //
783// Drawing ALIP2A__0081 //
784///////////////////////////////////////
785//
786// Outer radius
787 Float_t rOuSaa1Saa2 = 70.0/2.;
788// Flange SAA1 side
789 Float_t dzSaa1Saa2F1 = 3.;
790 Float_t rInSaa1Saa2F1 = 58.5/2.;
791// 1st Central Section
792 Float_t dzSaa1Saa2C1 = 19.3;
793 Float_t rInSaa1Saa2C1 = 42.8/2.;
794// Transition Region
795 Float_t dzSaa1Saa2T = 3.3;
796// 1st Central Section
797 Float_t dzSaa1Saa2C2 = 6.2;
798 Float_t rInSaa1Saa2C2 = 36.2/2.;
799// Flange SAA2 side
800 Float_t dzSaa1Saa2F2 = 3.1;
801 Float_t rInSaa1Saa2F2 = 54.1/2.;
802// Total length
803 Float_t dzSaa1Saa2 = 34.9;
804
805
806 TGeoPcon* shSaa1Saa2Pb = new TGeoPcon(0., 360., 8);
807 z = 0.;
808// Flange SAA1 side
809 shSaa1Saa2Pb->DefineSection( 0, z, rInSaa1Saa2F1, rOuSaa1Saa2);
810 z += dzSaa1Saa2F1;
811 shSaa1Saa2Pb->DefineSection( 1, z, rInSaa1Saa2F1, rOuSaa1Saa2);
812 shSaa1Saa2Pb->DefineSection( 2, z, rInSaa1Saa2C1, rOuSaa1Saa2);
813// Central region 1
814 z += dzSaa1Saa2C1;
815 shSaa1Saa2Pb->DefineSection( 3, z, rInSaa1Saa2C1, rOuSaa1Saa2);
816// 45 deg transition
817 z += dzSaa1Saa2T;
818 shSaa1Saa2Pb->DefineSection( 4, z, rInSaa1Saa2C2, rOuSaa1Saa2);
819 z += dzSaa1Saa2C2;
820 shSaa1Saa2Pb->DefineSection( 5, z, rInSaa1Saa2C2, rOuSaa1Saa2);
821 shSaa1Saa2Pb->DefineSection( 6, z, rInSaa1Saa2F2, rOuSaa1Saa2);
822 z += dzSaa1Saa2F2;
823 shSaa1Saa2Pb->DefineSection( 7, z, rInSaa1Saa2F2, rOuSaa1Saa2);
824 TGeoVolume* voSaa1Saa2Pb = new TGeoVolume("YSAA1SAA2Pb", shSaa1Saa2Pb, kMedPb);
825//
826// Mother volume and outer steel envelope
827 Float_t rOuSaa1Saa2Steel = 36.9;
828
829 TGeoPcon* shSaa1Saa2 = MakeShapeFromTemplate(shSaa1Saa2Pb, 0., rOuSaa1Saa2Steel-rOuSaa1Saa2);
830 TGeoVolume* voSaa1Saa2 = new TGeoVolume("YSAA1SAA2", shSaa1Saa2, kMedSteel);
831 voSaa1Saa2->AddNode(voSaa1Saa2Pb, 1, vec0);
832//
833// Inner region with higher transport cuts
834//
835 TGeoPcon* shSaa1Saa2I = MakeShapeFromTemplate(shSaa1Saa2Pb, 0., -3.);
836 TGeoVolume* voSaa1Saa2I = new TGeoVolume("YSAA1_SAA2I", shSaa1Saa2I, kMedPbSh);
837 voSaa1Saa2Pb->AddNode(voSaa1Saa2I, 1, vec0);
838
839
840
841///////////////////////////////////////
842// SAA2 //
843///////////////////////////////////////
844
845
846///////////////////////////////////
847// SAA2 Steel Envelope //
848// Drawing ALIP2A__0041 //
849///////////////////////////////////
850 dSt = 4.; // Thickness of steel envelope
851 // Length of the first section
852 Float_t dzSaa2StEnv1 = 163.15;
853 Float_t rInSaa2StEnv1 = 65.8/2.;
854 // Length of the second section
855 Float_t dzSaa2StEnv2 = 340.35;
856 Float_t rInSaa2StEnv2 = 87.2/2.;
857 // Rel. starting position
858 Float_t zSaa2StEnv = 3.;
859
860 TGeoPcon* shSaa2StEnv = new TGeoPcon(0., 360., 6);
861 // First Section
862 z = zSaa2StEnv;
863 shSaa2StEnv->DefineSection( 0, z, rInSaa2StEnv1, rInSaa2StEnv1 + dSt);
864 z += dzSaa2StEnv1;
865 shSaa2StEnv->DefineSection( 1, z, rInSaa2StEnv1, rInSaa2StEnv1 + dSt);
866 // Transition region
867 shSaa2StEnv->DefineSection( 2, z, rInSaa2StEnv1, rInSaa2StEnv2 + dSt);
868 z += dSt;
869 shSaa2StEnv->DefineSection( 3, z, rInSaa2StEnv1, rInSaa2StEnv2 + dSt);
870 // Second section
871 shSaa2StEnv->DefineSection( 4, z, rInSaa2StEnv2, rInSaa2StEnv2 + dSt);
872 z += dzSaa2StEnv2;
873 shSaa2StEnv->DefineSection( 5, z, rInSaa2StEnv2, rInSaa2StEnv2 + dSt);
874
875 TGeoVolume* voSaa2StEnv = new TGeoVolume("YSAA2_SteelEnvelope", shSaa2StEnv, kMedSteel);
876
877
878///////////////////////////////////
879// SAA2 Pb Ring //
880// Drawing ALIP2A__0080 //
881// Drawing ALIP2A__0111 //
882///////////////////////////////////
883//
884// Rel. position in z
885 Float_t zSaa2PbRing = 35.25;
886// Length
887 Float_t dzSaa2PbRing = 65.90;
888// Inner radius
889 Float_t rInSaa2PbRing = 37.00;
890// Outer radius at front
891 Float_t rOuSaa2PbRingF = 42.74;
892// Outer Rradius at rear
893 Float_t rOuSaa2PbRingR = 44.58;
894
895 TGeoPcon* shSaa2PbRing = new TGeoPcon(0., 360., 2);
896 z = zSaa2PbRing;
897 shSaa2PbRing->DefineSection(0, z, rInSaa2PbRing, rOuSaa2PbRingF);
898 z += dzSaa2PbRing;
899 shSaa2PbRing->DefineSection(1, z, rInSaa2PbRing, rOuSaa2PbRingR);
900
901 TGeoVolume* voSaa2PbRing = new TGeoVolume("YSAA2_PbRing", shSaa2PbRing, kMedPb);
902
903
904///////////////////////////////////
905// SAA2 Pb Components //
906// Drawing ALIP2A__0079 //
907///////////////////////////////////
908 tanAlpha = TMath::Tan(1.89 / 2. * kDegRad);
909 TGeoPcon* shSaa2PbComp = new TGeoPcon(0., 360., 16);
910 // Total length
911 Float_t dzSaa2PbComp = 512.;
912 // Length of 1st bellow recess
913 Float_t dzSaa2PbCompB1 = 24.;
914 // Length of 2nd bellow recess
915 Float_t dzSaa2PbCompB2 = 27.;
916 // Flange on the SAA1 side Detail A
917 // 1st Step
918 Float_t dzSaa2PbCompA1 = 1.5;
919 Float_t rInSaa2PbCompA1 = 43.0/2.;
920 Float_t rOuSaa2PbCompA1 = 53.0/2.;
921 // 2nd Step
922 Float_t dzSaa2PbCompA2 = 1.5;
923 Float_t rInSaa2PbCompA2 = 36.8/2.;
924 Float_t rOuSaa2PbCompA2 = rOuSaa2PbCompA1;
925 // Straight section
926 Float_t dzSaa2PbCompA3 = 21.0;
927 Float_t rInSaa2PbCompA3 = rInSaa2PbCompA2;
928 Float_t rOuSaa2PbCompA3 = 65.2/2.;
929 //
930 // 1st Section (outer straight, inner 1.89/2. deg opening cone)
931 // Length
932 Float_t dzSaa2PbComp1 = 146.15;
933 // Inner radius at the end
934 Float_t rInSaa2PbComp1 = rInSaa2PbCompA3 + dzSaa2PbComp1 * tanAlpha;
935 // Outer radius
936 Float_t rOuSaa2PbComp1 = rOuSaa2PbCompA3;
937 //
938 // 2nd Section (outer straight, inner 1.89/2. deg opening cone)
939 // Length
940 Float_t dzSaa2PbComp2 = (dzSaa2PbComp - dzSaa2PbComp1 - dzSaa2PbCompB1 - dzSaa2PbCompB2);
941 // Inner radius at the end
942 Float_t rInSaa2PbComp2 = rInSaa2PbComp1 + dzSaa2PbComp2 * tanAlpha;
943 // Outer radius
944 Float_t rOuSaa2PbComp2 = 86.6/2.;
945 //
946 // Flange on the SAA3 side (Detail E)
947 //
948 // Straight Section
949 // Length dzSaa2PbCompB2 - 8.8 = 27 - 8.8 = 18.2
950 Float_t dzSaa2PbCompE1 = 18.2;
951 Float_t rInSaa2PbCompE1 = 52.0/2.;
952 Float_t rOuSaa2PbCompE1 = 86.6/2.;
953 // 45 deg transition
954 Float_t dzSaa2PbCompE2 = 2.7;
955 // 1st Step
956 Float_t dzSaa2PbCompE3 = 0.6;
957 Float_t rInSaa2PbCompE3 = 52.0/2.+ dzSaa2PbCompE2;
958 Float_t rOuSaa2PbCompE3 = 83.0/2.;
959 // 2nd Step
960 Float_t dzSaa2PbCompE4 = 4.0;
961 Float_t rOuSaa2PbCompE4 = 61.6/2.;
962 // end
963 Float_t dzSaa2PbCompE5 = 1.5;
964
965
966 //
967 // Flange on SAA1 side (Detail A)
968 z = 0.;
969 // 1st Step
970 shSaa2PbComp->DefineSection( 0, z, rInSaa2PbCompA1, rOuSaa2PbCompA1);
971 z += dzSaa2PbCompA1;
972 shSaa2PbComp->DefineSection( 1, z, rInSaa2PbCompA1, rOuSaa2PbCompA1);
973 shSaa2PbComp->DefineSection( 2, z, rInSaa2PbCompA2, rOuSaa2PbCompA2);
974 // 2nd Step
975 z += dzSaa2PbCompA2;
976 shSaa2PbComp->DefineSection( 3, z, rInSaa2PbCompA2, rOuSaa2PbCompA2);
977 shSaa2PbComp->DefineSection( 4, z, rInSaa2PbCompA3, rOuSaa2PbCompA3);
978 // straight section
979 z += dzSaa2PbCompA3;
980 shSaa2PbComp->DefineSection( 5, z, rInSaa2PbCompA3, rOuSaa2PbCompA3);
981 //
982 // Section 1
983 z += dzSaa2PbComp1;
984 shSaa2PbComp->DefineSection( 6, z, rInSaa2PbComp1, rOuSaa2PbComp1);
985 //
986 // Section 2
987 shSaa2PbComp->DefineSection( 7, z, rInSaa2PbComp2, rOuSaa2PbComp2);
988 z += dzSaa2PbComp2;
989 shSaa2PbComp->DefineSection( 8, z, rInSaa2PbComp2, rOuSaa2PbComp2);
990 //
991 // Flange SAA3 side (Detail E)
992 z += dzSaa2PbCompE1;
993 shSaa2PbComp->DefineSection( 9, z, rInSaa2PbCompE1, rOuSaa2PbCompE1);
994 // 45 deg transition
995 z += dzSaa2PbCompE2;
996 shSaa2PbComp->DefineSection( 10, z, rInSaa2PbCompE3, rOuSaa2PbCompE1);
997 // 1st step
998 z += dzSaa2PbCompE3;
999 shSaa2PbComp->DefineSection( 11, z, rInSaa2PbCompE3, rOuSaa2PbCompE1);
1000 shSaa2PbComp->DefineSection( 12, z, rInSaa2PbCompE3, rOuSaa2PbCompE3);
1001 // 2nd step
1002 z += dzSaa2PbCompE4;
1003 shSaa2PbComp->DefineSection( 13, z, rInSaa2PbCompE3, rOuSaa2PbCompE3);
1004 shSaa2PbComp->DefineSection( 14, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1005 // end
1006 z += dzSaa2PbCompE5;
1007 shSaa2PbComp->DefineSection( 15, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1008
1009 TGeoVolume* voSaa2PbComp = new TGeoVolume("YSAA2_PbComp", shSaa2PbComp, kMedPb);
1010
1011
1012///////////////////////////////////
1013// SAA2 Inner Tube //
1014// Drawing ALIP2A__0083 //
1015///////////////////////////////////
1016//
1017//
1018//
1019// Length of saa2: 512.0 cm
1020// Length of inner tube: 501.7 cm
1021// Lenth of bellow recess: 10.3 cm ( 1.5 + 8.8)
1022// Radius at entrance 36.8/2, d = 0.1
1023// Radius at exit 52.0/2, d = 0.1
1024//
1025 const Float_t kSaa2InnerTubeL = 501.7; // Length of the tube
1026 const Float_t kSaa2InnerTubeRmin = 36.6/2.; // Radius at entrance
1027 const Float_t kSaa2InnerTubeRmax = 51.8/2.; // Radius at exit
1028 const Float_t kSaa2InnerTubeD = 0.2 ; // Thickness
1029 TGeoPcon* shSaa2InnerTube = new TGeoPcon(0., 360., 4);
1030 z = 0.;
1031 shSaa2InnerTube->DefineSection( 0, z, kSaa2InnerTubeRmin - kSaa2InnerTubeD, kSaa2InnerTubeRmin);
1032 z += dzSaa2PbCompA2 + dzSaa2PbCompA3;
1033 shSaa2InnerTube->DefineSection( 1, z, kSaa2InnerTubeRmin - kSaa2InnerTubeD, kSaa2InnerTubeRmin);
1034 z = kSaa2InnerTubeL - dzSaa2PbCompE1;
1035 shSaa2InnerTube->DefineSection( 2, z, kSaa2InnerTubeRmax - kSaa2InnerTubeD, kSaa2InnerTubeRmax);
1036 z = kSaa2InnerTubeL;
1037 shSaa2InnerTube->DefineSection( 3, z, kSaa2InnerTubeRmax - kSaa2InnerTubeD, kSaa2InnerTubeRmax);
1038 TGeoVolume* voSaa2InnerTube = new TGeoVolume("YSAA2_InnerTube", shSaa2InnerTube, kMedSteel);
1039
1040///////////////////////////////////
1041// SAA2 Steel Ring //
1042// Drawing ALIP2A__0042 //
1043///////////////////////////////////
1044 // HalfWidth
1045 Float_t dzSaa2SteelRing = 2.;
1046 TGeoTube* shSaa2SteelRing = new TGeoTube(41.6, 47.6, dzSaa2SteelRing);
1047 TGeoVolume* voSaa2SteelRing = new TGeoVolume("YSAA2_SteelRing", shSaa2SteelRing, kMedSteel);
1048
1049///////////////////////////////////
1050// SAA2 Outer Shape //
1051// Drawing ALIP2A__0108 //
1052///////////////////////////////////
1053
1054 TGeoPcon* shSaa2 = new TGeoPcon(0., 360., 16);
1055 kSec = 0.02; // security distance to avoid trivial extrusions
1056 rmin = kSaa2InnerTubeRmin - kSaa2InnerTubeD - kSec;
1057 rmax = kSaa2InnerTubeRmax - kSaa2InnerTubeD - kSec;
1058 // Flange SAA1 side
1059 z = 0.;
1060 shSaa2->DefineSection( 0, z, rmin , rOuSaa2PbCompA1);
1061 z += dzSaa2PbCompA1 + dzSaa2PbCompA2;
1062 shSaa2->DefineSection( 1, z, rmin , rOuSaa2PbCompA1);
1063 shSaa2->DefineSection( 2, z, rmin , rInSaa2StEnv1 + dSt);
1064 z += dzSaa2PbCompA3;
1065 shSaa2->DefineSection( 3, z, rmin , rInSaa2StEnv1 + dSt);
1066 z = zSaa2PbRing;
1067 shSaa2->DefineSection( 4, z, 0. , rInSaa2StEnv1 + dSt);
1068 shSaa2->DefineSection( 5, z, 0. , rOuSaa2PbRingF);
1069 z += dzSaa2PbRing;
1070 shSaa2->DefineSection( 6, z, 0. , rOuSaa2PbRingR);
1071 shSaa2->DefineSection( 7, z, 0. , rInSaa2StEnv1 + dSt);
1072 z = dzSaa2PbCompA1 + dzSaa2PbCompA2 + dzSaa2StEnv1;
1073 shSaa2->DefineSection( 8, z, 0. , rInSaa2StEnv1 + dSt);
1074 shSaa2->DefineSection( 9, z, 0. , rInSaa2StEnv2 + dSt);
1075 z = dzSaa2PbComp - dzSaa2PbCompB2;
1076 shSaa2->DefineSection(10, z, rmax , rInSaa2StEnv2 + dSt);
1077 z += dzSaa2PbCompE1;
1078 shSaa2->DefineSection(11, z, rmax , rInSaa2StEnv2 + dSt);
1079 z += dzSaa2PbCompE2;
1080 shSaa2->DefineSection(12, z, rInSaa2PbCompE3, rInSaa2StEnv2 + dSt);
1081 z += (dzSaa2PbCompE3 + dzSaa2PbCompE4);
1082 shSaa2->DefineSection(13, z, rInSaa2PbCompE3, rInSaa2StEnv2 + dSt);
1083 shSaa2->DefineSection(14, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1084 z += dzSaa2PbCompE5;
1085 shSaa2->DefineSection(15, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1086
1087 TGeoVolume* voSaa2 = new TGeoVolume("YSAA2", shSaa2, kMedAir);
1088// Inner 1.89/2 deg line
1089 Double_t zref = dzSaa2PbCompA1 + dzSaa2PbCompA2 + dzSaa2PbCompA3;
1090 for (Int_t i = 4; i < 10; i++) {
1091 Double_t z = shSaa2->GetZ(i);
1092 Double_t r2 = shSaa2->GetRmax(i);
1093 Double_t r1 = rmin + (z - zref) * TMath::Tan(1.89 / 2. * kDegRad) - kSec;
1094 shSaa2->DefineSection(i, z, r1, r2);
1095 }
1096
1097//
1098// Assemble SAA2
1099 voSaa2->AddNode(voSaa2StEnv, 1, vec0);
1100 voSaa2->AddNode(voSaa2PbRing, 1, vec0);
1101 voSaa2->AddNode(voSaa2PbComp, 1, vec0);
1102 voSaa2->AddNode(voSaa2InnerTube, 1, new TGeoTranslation(0., 0., dzSaa2PbCompA1));
1103 z = (dzSaa2PbComp - dzSaa2PbCompE4 - dzSaa2PbCompE5) + dzSaa2SteelRing;
1104 voSaa2->AddNode(voSaa2SteelRing, 1, new TGeoTranslation(0., 0., z));
1105
1106
1107///////////////////////////////////////
1108// SAA3 //
1109///////////////////////////////////////
1110//
1111//
1112// This is a study performed by S. Maridor
1113// The SAA3 has not yet been designed !!!!!!!!
1114//
1115///////////////////////////////////
1116// SAA3 Outer Shape //
1117// Drawing ALIP2A__0xxx //
1118///////////////////////////////////
1119
1120 TGeoVolumeAssembly* voSaa3 = new TGeoVolumeAssembly("YSAA3");
1121
1122///////////////////////////////////
1123// SAA3 Steel Components //
1124// Drawing ALIP2A__0xxx //
1125///////////////////////////////////
1126// Block
1127 TGeoBBox* shSaa3SteelBlockO = new TGeoBBox(220./2., 80./2., 100./2.);
1128 shSaa3SteelBlockO->SetName("Saa3SteelBlockO");
1129
1130 TGeoPcon* shSaa3InnerRegion = new TGeoPcon(0., 360., 6);
1131 shSaa3InnerRegion->DefineSection( 0, -52.0, 0., 56.6/2.);
1132 shSaa3InnerRegion->DefineSection( 1, -45.0, 0., 56.6/2.);
1133 shSaa3InnerRegion->DefineSection( 2, -42.0, 0., 50.6/2.);
1134 shSaa3InnerRegion->DefineSection( 3, -30.0, 0., 50.6/2.);
1135 shSaa3InnerRegion->DefineSection( 4, 30.5, 0., 16.8/2.);
1136 shSaa3InnerRegion->DefineSection( 5, 52.0, 0., 16.8/2.);
1137 shSaa3InnerRegion->SetName("Saa3InnerRegion");
1138
1139 TGeoCompositeShape* shSaa3SteelBlock = new TGeoCompositeShape("Saa3SteelBlock", "Saa3SteelBlockO-Saa3InnerRegion");
1140 TGeoVolume* voSaa3SteelBlock = new TGeoVolume("YSAA3SteelBlock", shSaa3SteelBlock, kMedSteel);
1141
1142
1143 voSaa3->AddNode(voSaa3SteelBlock, 1, vec0);
1144// Plate 1: 220 cm x 100 cm x 10 cm (x 1)
1145 TGeoBBox* shSaa3SteelPlate1 = new TGeoBBox(220./2., 10./2., 100./2.);
1146 TGeoVolume* voSaa3SteelPlate1 = new TGeoVolume("YSAA3SteelPlate1", shSaa3SteelPlate1, kMedSteel);
1147 voSaa3->AddNode(voSaa3SteelPlate1, 1, new TGeoTranslation(0., -80./2. - 10./2., 0.));
1148// Plate 2: 200 cm x 100 cm x 10 cm (x 6)
1149 TGeoBBox* shSaa3SteelPlate2 = new TGeoBBox(200./2., 60./2., 100./2.);
1150 TGeoVolume* voSaa3SteelPlate2 = new TGeoVolume("YSAA3SteelPlate2", shSaa3SteelPlate2, kMedSteel);
1151 voSaa3->AddNode(voSaa3SteelPlate2, 1, new TGeoTranslation(0., -80./2. - 10. - 60./2., 0.));
1152// Plate 3: 200 cm x 100 cm x 10 cm (x 4)
1153 TGeoBBox* shSaa3SteelPlate3 = new TGeoBBox(200./2., 40./2., 100./2.);
1154 TGeoVolume* voSaa3SteelPlate3 = new TGeoVolume("YSAA3SteelPlate3", shSaa3SteelPlate3, kMedSteel);
1155 voSaa3->AddNode(voSaa3SteelPlate3, 1, new TGeoTranslation(0., +80./2. + 40/2., 0.));
1156// Plate 4: 180 cm x 100 cm x 10 cm (x 1)
1157 TGeoBBox* shSaa3SteelPlate4 = new TGeoBBox(180./2., 10./2., 100./2.);
1158 TGeoVolume* voSaa3SteelPlate4 = new TGeoVolume("YSAA3SteelPlate4", shSaa3SteelPlate4, kMedSteel);
1159 voSaa3->AddNode(voSaa3SteelPlate4, 1, new TGeoTranslation(0., +80./2. + 40. + 10/2., 0.));
1160// Plate 5: 150 cm x 100 cm x 10 cm (x 1)
1161 TGeoBBox* shSaa3SteelPlate5 = new TGeoBBox(150./2., 10./2., 100./2.);
1162 TGeoVolume* voSaa3SteelPlate5 = new TGeoVolume("YSAA3SteelPlate5", shSaa3SteelPlate5, kMedSteel);
1163 voSaa3->AddNode(voSaa3SteelPlate5, 1, new TGeoTranslation(0., +80./2. + 50. + 10/2., 0.));
1164// Plate 6: 100 cm x 100 cm x 10 cm (x 1)
1165 TGeoBBox* shSaa3SteelPlate6 = new TGeoBBox(100./2., 10./2., 100./2.);
1166 TGeoVolume* voSaa3SteelPlate6 = new TGeoVolume("YSAA3SteelPlate6", shSaa3SteelPlate6, kMedSteel);
1167 voSaa3->AddNode(voSaa3SteelPlate6, 1, new TGeoTranslation(0., +80./2. + 60. + 10/2., 0.));
1168
1169///////////////////////////////////
1170// SAA3 Concrete Piece //
1171// Drawing ALIP2A__0xxx //
1172///////////////////////////////////
1173 TGeoPcon* shSaa3ConcPiece = new TGeoPcon(0., 360., 6);
1174 shSaa3ConcPiece->DefineSection( 0, 0.0, 57.4/2., 62./2.);
1175 shSaa3ConcPiece->DefineSection( 1, 5.0, 57.4/2., 62./2.);
1176 shSaa3ConcPiece->DefineSection( 2, 8.0, 51.4/2., 62./2.);
1177 shSaa3ConcPiece->DefineSection( 3, 20.0, 51.4/2., 62./2.);
1178 shSaa3ConcPiece->DefineSection( 4, 80.5, 17.6/2., 62./2.);
1179 shSaa3ConcPiece->DefineSection( 5, 100.0, 17.6/2., 62./2.);
1180 TGeoVolume* voSaa3ConcPiece = new TGeoVolume("YSAA2_ConcPiece", shSaa3ConcPiece, kMedConc);
1181 voSaa3SteelBlock->AddNode(voSaa3ConcPiece, 1, new TGeoTranslation(0., 0., -50.));
1182
1183///////////////////////////////////
1184// SAA3 InnerTube //
1185// Drawing ALIP2A__0xxx //
1186///////////////////////////////////
1187 TGeoPcon* shSaa3InnerTube = new TGeoPcon(0., 360., 6);
1188 shSaa3InnerTube->DefineSection( 0, 0.0, 56.6/2., 57.0/2.);
1189 shSaa3InnerTube->DefineSection( 1, 5.0, 56.6/2., 57.0/2.);
1190 shSaa3InnerTube->DefineSection( 2, 8.0, 50.6/2., 51.0/2.);
1191 shSaa3InnerTube->DefineSection( 3, 20.0, 50.6/2., 51.0/2.);
1192 shSaa3InnerTube->DefineSection( 4, 80.5, 16.8/2., 17.2/2.);
1193 shSaa3InnerTube->DefineSection( 5, 100.0, 16.8/2., 17.2/2.);
1194 TGeoVolume* voSaa3InnerTube = new TGeoVolume("YSAA2_InnerTube", shSaa3InnerTube, kMedSteel);
1195 voSaa3SteelBlock->AddNode(voSaa3InnerTube, 1, new TGeoTranslation(0., 0., -50.));
1196
1197///////////////////////////////////
1198// Muon Filter //
1199// Drawing ALIP2A__0105 //
1200///////////////////////////////////
1201 // Half Length
1202 Float_t dzMuonFilter = 60.;
1203
1204 TGeoBBox* shMuonFilterO = new TGeoBBox(550./2., 620./2., dzMuonFilter);
1205 shMuonFilterO->SetName("FilterO");
1206 TGeoTube* shMuonFilterI = new TGeoTube(0., 50., dzMuonFilter);
1207 shMuonFilterI->SetName("FilterI");
1208 TGeoCompositeShape* shMuonFilter = new TGeoCompositeShape("MuonFilter", "FilterO-FilterI");
1209 //
1210 // !!!!! Needs to be inclined
1211 TGeoVolume* voMuonFilter = new TGeoVolume("YMuonFilter", shMuonFilter, kMedSteel);
1212
1213//
1214 TGeoVolumeAssembly* voSaa = new TGeoVolumeAssembly("YSAA");
1215//
1216//
1217//
1218//
1219//
1220// Starting position of the FA Flange/Tail
1221 Float_t ziFaWTail = 499.0;
1222// End of the FA Flange/Tail
1223 Float_t zoFaWTail = ziFaWTail + dzFaWTail;
1224// Starting position of the FA/SAA1 Joint (2.8 cm overlap with tail)
1225 Float_t ozFaSaa1 = 2.8;
1226 Float_t ziFaSaa1 = zoFaWTail - ozFaSaa1;
1227// End of the FA/SAA1 Joint
1228 Float_t zoFaSaa1 = ziFaSaa1 + dzFaSaa1;
1229// Starting position of SAA1 (2.0 cm overlap with joint)
1230 Float_t ozSaa1 = 2.;
1231 Float_t ziSaa1 = zoFaSaa1 - ozSaa1;
1232// End of SAA1
1233 Float_t zoSaa1 = ziSaa1 + dzSaa1;
1234// Starting position of SAA1/SAA2 Joint (1.95 cm overlap with SAA1)
1235 Float_t ziSaa1Saa2 = zoSaa1 - 1.95;
1236// End of SAA1/SAA2 Joint
1237 Float_t zoSaa1Saa2 = ziSaa1Saa2 + dzSaa1Saa2;
1238// Starting position of SAA2 (3.1 cm overlap with the joint)
1239 Float_t ziSaa2 = zoSaa1Saa2 - 3.1;
1240// End of SAA2
1241 Float_t zoSaa2 = ziSaa2 + dzSaa2PbComp;
1242// Position of SAA3
1243 Float_t zcSaa3 = zoSaa2 + 50.;
1244// Position of the Muon Filter
1245 Float_t zcFilter = 1465.9 + dzMuonFilter;
1246
1247 printf("FaSaa1 %f %f \n", ziFaSaa1, zoFaSaa1);
1248 printf("Saa1 %f %f \n", ziSaa1, zoSaa1);
1249 printf("Saa1/Saa2 %f %f \n", ziSaa1Saa2, zoSaa1Saa2);
1250 printf("Saa2 %f %f \n", ziSaa2, zoSaa2);
1251
1252 voSaa->AddNode(voFaWTail, 1, new TGeoTranslation(0., 0., ziFaWTail));
1253 voSaa->AddNode(voFaSaa1, 1, new TGeoTranslation(0., 0., ziFaSaa1));
1254 voSaa->AddNode(voSaa1 , 1, new TGeoTranslation(0., 0., ziSaa1));
1255 voSaa->AddNode(voSaa1Saa2, 1, new TGeoTranslation(0., 0., ziSaa1Saa2));
1256 voSaa->AddNode(voSaa2 , 1, new TGeoTranslation(0., 0., ziSaa2));
1257 voSaa->AddNode(voSaa3, 1, new TGeoTranslation(0., 0., zcSaa3));
1258 voSaa->AddNode(voMuonFilter, 1, new TGeoTranslation(0., 0., zcFilter));
1259
1260 TGeoRotation* rotxz = new TGeoRotation("rotxz", 90., 0., 90., 90., 180., 0.);
1261 top->AddNode(voSaa, 1, new TGeoCombiTrans(0., 0., 0., rotxz));
1262//
1263// Mother volume for muon stations 1+2 and shielding material placed between the quadrants
1264//
1265 // Position of the dipole
1266 Float_t ziDipole = 724.45;
1267
1268 TGeoPcon* shYOUT1 = new TGeoPcon(0., 360., 25);
1269 Float_t eps = 1.e-2;
1270 // FA Tail Section
1271 for (Int_t iz = 0; iz < 9; iz++) {
1272 z = shFaWTail->GetZ(iz+1);
1273 if (iz == 8) z -= ozFaSaa1;
1274 shYOUT1->DefineSection(iz, z + ziFaWTail, shFaWTail->GetRmax(iz+1) + eps, 150.);
1275 }
1276 // FA-SAA1 Joint
1277 z = shYOUT1->GetZ(8);
1278
1279 for (Int_t iz = 9; iz < 17; iz++)
1280 shYOUT1->DefineSection(iz, z + shFaSaa1->GetZ(iz-9), shFaSaa1->GetRmax(iz-9) + eps, 150.);
1281
1282 z = shYOUT1->GetZ(16) - ozSaa1;
1283 // SAA1 - Dipole
1284 for (Int_t iz = 17; iz < 24; iz++)
1285 shYOUT1->DefineSection(iz, z + shSaa1M->GetZ(iz-13), shSaa1M->GetRmax(iz-13) + eps, 150.);
1286 // Distance between dipole and start of SAA1 2deg opening cone
1287 dz = zSaa1StEnv[0] - dSt + zSaa1StEnvS + ziSaa1 - ziDipole;
1288 rOut = rOuSaa1StEnv2 + dz * TMath::Tan(2. * kDegRad);
1289
1290 shYOUT1->DefineSection(24, ziDipole, rOut + eps, 150.);
1291
1292 InvertPcon(shYOUT1);
1293 TGeoVolume* voYOUT1 = new TGeoVolume("YOUT1", shYOUT1, kMedAirMu);
1294
1295 voYOUT1->AddNode(asSaa1ExtraShield, 1, new TGeoCombiTrans(0., 0., - (100.7 + 62.2 + saa1ExtraShieldL / 2. + ziFaWTail), rotxz));
1296 voYOUT1->AddNode(asFaExtraShield, 1, new TGeoCombiTrans(0., 0., - (16.41 + kFaWring2HWidth + ziFaWTail), rotxz));
1297 top->AddNode(voYOUT1, 1, vec0);
1298//
1299// Mother volume for muon stations 4+5 and trigger stations.
1300//
1301 Float_t zoDipole = 1235.55;
1302
1303 TGeoPcon* shYOUT2 = new TGeoPcon(0., 360., 14);
1304 z = zoDipole;
1305 shYOUT2->DefineSection(0, z, rOuSaa1String, 252.);
1306// Start of SAA1-SAA2
1307 z = ziSaa1Saa2;
1308 shYOUT2->DefineSection(1, z, rOuSaa1String, 252.);
1309 shYOUT2->DefineSection(2, z, rOuSaa1Saa2Steel, 252.);
1310// End of SAA1-SAA2
1311 z = ziSaa2;
1312 shYOUT2->DefineSection(3, z, rOuSaa1Saa2Steel, 252.);
1313// SAA2
1314 shYOUT2->DefineSection( 4, z, rInSaa2StEnv1 + dSt, 252.);
1315 z = ziSaa2 + zSaa2PbRing;
1316 shYOUT2->DefineSection( 5, z, rInSaa2StEnv1 + dSt, 252.);
1317// Pb Cone
1318 shYOUT2->DefineSection( 6, z, rOuSaa2PbRingF, 252.);
1319 rmin = rOuSaa2PbRingF + (1380. - z) * TMath::Tan(1.6 * kDegRad);
1320 shYOUT2->DefineSection( 7, 1380., rmin, 252.);
1321 shYOUT2->DefineSection( 8, 1380., rmin, 304.);
1322 z = ziSaa2 + zSaa2PbRing + dzSaa2PbRing;
1323 shYOUT2->DefineSection( 9, z, rOuSaa2PbRingR, 304.);
1324// Straight Sections
1325 shYOUT2->DefineSection(10, z, rInSaa2StEnv1 + dSt, 460.);
1326 z = ziSaa2 + dzSaa2StEnv1;
1327 shYOUT2->DefineSection(11, z, rInSaa2StEnv1 + dSt, 460.);
1328 shYOUT2->DefineSection(12, z, rInSaa2StEnv2 + dSt, 460.);
1329 z += dzSaa2StEnv2;
1330 shYOUT2->DefineSection(13, z, rInSaa2StEnv2 + dSt, 460.);
1331
1332 InvertPcon(shYOUT2);
1333 TGeoVolume* voYOUT2 = new TGeoVolume("YOUT2", shYOUT2, kMedAirMu);
1334 top->AddNode(voYOUT2, 1, vec0);
1335}
1336
1337void AliSHILv3::Init()
1338{
1339 //
1340 // Initialise the muon shield after it has been built
1341 //
1342 Int_t i;
1343 //
1344 if(AliLog::GetGlobalDebugLevel()>0) {
1345 printf("\n%s: ",ClassName());
1346 for(i=0;i<35;i++) printf("*");
1347 printf(" SHILvTGeo_INIT ");
1348 for(i=0;i<35;i++) printf("*");
1349 printf("\n%s: ",ClassName());
1350 //
1351 // Here the SHIL initialisation code (if any!)
1352 for(i=0;i<80;i++) printf("*");
1353 printf("\n");
1354 }
1355}
1356
1357void AliSHILv3::InvertPcon(TGeoPcon* pcon)
1358{
1359//
1360// z -> -z
1361//
1362 Int_t nz = pcon->GetNz();
1363 Double_t* z = new Double_t[nz];
1364 Double_t* rmin = new Double_t[nz];
1365 Double_t* rmax = new Double_t[nz];
1366
1367 Double_t* z0 = pcon->GetZ();
1368 Double_t* rmin0 = pcon->GetRmin();
1369 Double_t* rmax0 = pcon->GetRmax();
1370
1371 for (Int_t i = 0; i < nz; i++) {
1372 z[i] = z0[i];
1373 rmin[i] = rmin0[i];
1374 rmax[i] = rmax0[i];
1375 }
1376
1377 for (Int_t i = 0; i < nz; i++) {
1378 Int_t j = nz - i - 1;
1379 pcon->DefineSection(i, - z[j], rmin[j], rmax[j]);
1380 }
1381
1382 delete[] z;
1383 delete[] rmin;
1384 delete[] rmax;
1385}
1386
1387TGeoPcon* AliSHILv3::MakeShapeFromTemplate(TGeoPcon* pcon, Float_t drMin, Float_t drMax)
1388{
1389 //
1390 // Returns new shape based on a template changing
1391 // the inner radii by drMin and the outer radii by drMax.
1392 //
1393 Int_t nz = pcon->GetNz();
1394 TGeoPcon* cpcon = new TGeoPcon(0., 360., nz);
1395 for (Int_t i = 0; i < nz; i++)
1396 cpcon->DefineSection(i, pcon->GetZ(i), pcon->GetRmin(i) + drMin, pcon->GetRmax(i) + drMax);
1397 return cpcon;
1398}
1399
1400