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[u/mrichter/AliRoot.git] / STRUCT / AliSHILv3.cxx
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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
ca5fa9ae 16/* $Id$ */
20c7dbe5 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");
20c7dbe5 69// Rotations
70 TGeoRotation* rot000 = new TGeoRotation("rot000", 90., 0., 90., 90., 0., 0.);
71 TGeoRotation* rot090 = new TGeoRotation("rot090", 90., 90., 90., 180., 0., 0.);
72 TGeoRotation* rot180 = new TGeoRotation("rot180", 90., 180., 90., 270., 0., 0.);
73 TGeoRotation* rot270 = new TGeoRotation("rot270", 90., 270., 90., 0., 0., 0.);
65acf7d6 74 Float_t alhc = 0.794;
75 TGeoRotation* rotxzlhc = new TGeoRotation("rotxzlhc", 0., -alhc, 0.);
76 TGeoRotation* rotlhc = new TGeoRotation("rotlhc", 0., alhc, 0.);
77
20c7dbe5 78//
79// Media
80//
81 TGeoMedium* kMedNiW = gGeoManager->GetMedium("SHIL_Ni/W0");
82 TGeoMedium* kMedNiWsh = gGeoManager->GetMedium("SHIL_Ni/W3");
e7300821 83//
20c7dbe5 84 TGeoMedium* kMedSteel = gGeoManager->GetMedium("SHIL_ST_C0");
85 TGeoMedium* kMedSteelSh = gGeoManager->GetMedium("SHIL_ST_C3");
e7300821 86//
20c7dbe5 87 TGeoMedium* kMedAir = gGeoManager->GetMedium("SHIL_AIR_C0");
88 TGeoMedium* kMedAirMu = gGeoManager->GetMedium("SHIL_AIR_MUON");
e7300821 89//
20c7dbe5 90 TGeoMedium* kMedPb = gGeoManager->GetMedium("SHIL_PB_C0");
91 TGeoMedium* kMedPbSh = gGeoManager->GetMedium("SHIL_PB_C2");
e7300821 92//
1b148191 93 TGeoMedium* kMedConcSh = gGeoManager->GetMedium("SHIL_CC_C2");
20c7dbe5 94//
95 const Float_t kDegRad = TMath::Pi() / 180.;
96 const Float_t kAngle02 = TMath::Tan( 2.00 * kDegRad);
97 const Float_t kAngle0071 = TMath::Tan( 0.71 * kDegRad);
98
99
100///////////////////////////////////
101// FA Tungsten Tail //
102// Drawing ALIP2A__0049 //
103// Drawing ALIP2A__0111 //
104///////////////////////////////////
105//
106// The tail as built is shorter than in drawing ALIP2A__0049.
107// The CDD data base has to be updated !
108//
109// Inner radius at the entrance of the flange
110 Float_t rInFaWTail1 = 13.98/2.;
111// Outer radius at the entrance of the flange
112 Float_t rOuFaWTail1 = 52.00/2.;
113// Outer radius at the end of the section inside the FA
114 Float_t rOuFaWTail2 = 35.27/2.;
115// Length of the Flange section inside the FA
116 Float_t dzFaWTail1 = 6.00;
117// Length of the Flange section ouside the FA
118 Float_t dzFaWTail2 = 12.70;
119// Inner radius at the end of the section inside the FA
120 Float_t rInFaWTail2 = rInFaWTail1 + dzFaWTail1 * kAngle0071;
121// Inner radius at the end of the flange
122 Float_t rInFaWTail3 = rInFaWTail2 + dzFaWTail2 * kAngle0071;
123// Outer radius at the end of the flange
124 Float_t rOuFaWTail3 = rOuFaWTail2 + dzFaWTail2 * kAngle02;
125// Outer radius of the recess for station 1
126 Float_t rOuFaWTailR = 30.8/2.;
127// Length of the recess
128 Float_t dzFaWTailR = 36.00;
129// Inner radiues at the end of the recess
130 Float_t rInFaWTail4 = rInFaWTail3 + dzFaWTailR * kAngle0071;
131// Outer radius at the end of the recess
132 Float_t rOuFaWTail4 = rOuFaWTail3 + dzFaWTailR * kAngle02;
133// Inner radius of the straight section
134 Float_t rInFaWTailS = 22.30/2.;
135// Length of the bulge
136 Float_t dzFaWTailB = 13.0;
137// Outer radius at the end of the bulge
138 Float_t rOuFaWTailB = rOuFaWTail4 + dzFaWTailB * kAngle02;
139// Outer radius at the end of the tail
140 Float_t rOuFaWTailE = 31.6/2.;
141// Total length of the tail
142 Float_t dzFaWTail = 70.7;
143
144 TGeoPcon* shFaWTail = new TGeoPcon(0., 360., 10);
145 z = 0.;
146// Flange section inside FA
147 shFaWTail->DefineSection(0, z, rInFaWTail1, rOuFaWTail1);
148 z += dzFaWTail1;
149 shFaWTail->DefineSection(1, z, rInFaWTail2, rOuFaWTail1);
150 shFaWTail->DefineSection(2, z, rInFaWTail2, rOuFaWTail2);
151// Flange section outside FA
152 z += dzFaWTail2;
153 shFaWTail->DefineSection(3, z, rInFaWTail3, rOuFaWTail3);
154 shFaWTail->DefineSection(4, z, rInFaWTail3, rOuFaWTailR);
155// Recess Station 1
156 z += dzFaWTailR;
157 shFaWTail->DefineSection(5, z, rInFaWTail4, rOuFaWTailR);
158 shFaWTail->DefineSection(6, z, rInFaWTailS, rOuFaWTail4);
159// Bulge
160 z += dzFaWTailB;
161 shFaWTail->DefineSection(7, z, rInFaWTailS, rOuFaWTailB);
162 shFaWTail->DefineSection(8, z, rInFaWTailS, rOuFaWTailE);
163// End
164 z = dzFaWTail;
165 shFaWTail->DefineSection(9, z, rInFaWTailS, rOuFaWTailE);
166
167 TGeoVolume* voFaWTail = new TGeoVolume("YFaWTail", shFaWTail, kMedNiW);
168//
169// Define an inner region with higher transport cuts
170 TGeoPcon* shFaWTailI = new TGeoPcon(0., 360., 4);
171 z = 0.;
172 dr = 3.5;
173 shFaWTailI->DefineSection(0, z, rInFaWTail1, rInFaWTail1 + dr);
174 z += (dzFaWTail1 + dzFaWTail2 + dzFaWTailR);
175 shFaWTailI->DefineSection(1, z, rInFaWTail4, rInFaWTail4 + dr);
176 shFaWTailI->DefineSection(2, z, rInFaWTailS, rInFaWTailS + dr);
177 z = dzFaWTail;
178 shFaWTailI->DefineSection(3, z, rInFaWTailS, rInFaWTailS + dr);
179 TGeoVolume* voFaWTailI = new TGeoVolume("YFaWTailI", shFaWTailI, kMedNiWsh);
1b148191 180 voFaWTail->AddNode(voFaWTailI, 1, gGeoIdentity);
20c7dbe5 181
182///////////////////////////////////
183// //
184// Recess Station 1 //
185// Drawing ALIP2A__0260 //
186///////////////////////////////////
187
188///////////////////////////////////
189// FA W-Ring 2 //
190// Drawing ALIP2A__0220 //
191///////////////////////////////////
192 const Float_t kFaWring2Rinner = 15.40;
193 const Float_t kFaWring2Router = 18.40;
194 const Float_t kFaWring2HWidth = 3.75;
195 const Float_t kFaWring2Cutoffx = 3.35;
196 const Float_t kFaWring2Cutoffy = 3.35;
197 TGeoTubeSeg* shFaWring2a = new TGeoTubeSeg(kFaWring2Rinner, kFaWring2Router, kFaWring2HWidth, 0., 90.);
198 shFaWring2a->SetName("shFaWring2a");
199 TGeoBBox* shFaWring2b = new TGeoBBox(kFaWring2Router / 2., kFaWring2Router / 2., kFaWring2HWidth);
200 shFaWring2b->SetName("shFaWring2b");
201 TGeoTranslation* trFaWring2b
202 = new TGeoTranslation("trFaWring2b", kFaWring2Router / 2. + kFaWring2Cutoffx, kFaWring2Router / 2. + kFaWring2Cutoffy, 0.);
203 trFaWring2b->RegisterYourself();
204 TGeoCompositeShape* shFaWring2 = new TGeoCompositeShape("shFaWring2", "(shFaWring2a)*(shFaWring2b:trFaWring2b)");
205 TGeoVolume* voFaWring2 = new TGeoVolume("YFA_WRING2", shFaWring2, kMedNiW);
206
207///////////////////////////////////
208// FA W-Ring 3 //
209// Drawing ALIP2A__0219 //
210///////////////////////////////////
211 const Float_t kFaWring3Rinner = 15.40;
212 const Float_t kFaWring3Router = 18.40;
213 const Float_t kFaWring3HWidth = 3.75;
214 const Float_t kFaWring3Cutoffx = 3.35;
215 const Float_t kFaWring3Cutoffy = 3.35;
216 TGeoTubeSeg* shFaWring3a = new TGeoTubeSeg(kFaWring3Rinner, kFaWring3Router, kFaWring3HWidth, 0., 90.);
217 shFaWring3a->SetName("shFaWring3a");
218 TGeoBBox* shFaWring3b = new TGeoBBox(kFaWring3Router / 2., kFaWring3Router / 2., kFaWring3HWidth);
219 shFaWring3b->SetName("shFaWring3b");
220 TGeoTranslation* trFaWring3b
221 = new TGeoTranslation("trFaWring3b", kFaWring3Router / 2. + kFaWring3Cutoffx, kFaWring3Router / 2. + kFaWring3Cutoffy, 0.);
222 trFaWring3b->RegisterYourself();
223 TGeoCompositeShape* shFaWring3 = new TGeoCompositeShape("shFaWring3", "(shFaWring3a)*(shFaWring3b:trFaWring3b)");
224 TGeoVolume* voFaWring3 = new TGeoVolume("YFA_WRING3", shFaWring3, kMedNiW);
225
226///////////////////////////////////
227// FA W-Ring 5 //
228// Drawing ALIP2A__0221 //
229///////////////////////////////////
230 const Float_t kFaWring5Rinner = 15.40;
231 const Float_t kFaWring5Router = 18.67;
232 const Float_t kFaWring5HWidth = 1.08;
233 TGeoVolume* voFaWring5 = new TGeoVolume("YFA_WRING5", new TGeoTube(kFaWring5Rinner, kFaWring5Router, kFaWring5HWidth), kMedNiW);
234
235//
236// Position the rings in the assembly
237//
238 TGeoVolumeAssembly* asFaExtraShield = new TGeoVolumeAssembly("YCRE");
239// Distance between rings
240 const Float_t kFaDWrings = 1.92;
241//
242 dz = 0.;
243
244 dz += kFaWring2HWidth;
245 asFaExtraShield->AddNode(voFaWring2, 1, new TGeoCombiTrans(0., 0., dz, rot090));
246 asFaExtraShield->AddNode(voFaWring2, 2, new TGeoCombiTrans(0., 0., dz, rot270));
247 dz += kFaWring2HWidth;
248 dz += kFaDWrings;
249 dz += kFaWring3HWidth;
250 asFaExtraShield->AddNode(voFaWring3, 1, new TGeoCombiTrans(0., 0., dz, rot000));
251 asFaExtraShield->AddNode(voFaWring3, 2, new TGeoCombiTrans(0., 0., dz, rot180));
252 dz += kFaWring3HWidth;
253 dz += kFaWring5HWidth;
254 asFaExtraShield->AddNode(voFaWring5, 1, new TGeoTranslation(0., 0., dz));
255 dz += kFaWring5HWidth;
256 dz += kFaWring3HWidth;
257 asFaExtraShield->AddNode(voFaWring3, 3, new TGeoCombiTrans(0., 0., dz, rot090));
258 asFaExtraShield->AddNode(voFaWring3, 4, new TGeoCombiTrans(0., 0., dz, rot270));
259 dz += kFaWring3HWidth;
260 dz += kFaDWrings;
261 dz += kFaWring2HWidth;
262 asFaExtraShield->AddNode(voFaWring2, 3, new TGeoCombiTrans(0., 0., dz, rot000));
263 asFaExtraShield->AddNode(voFaWring2, 4, new TGeoCombiTrans(0., 0., dz, rot180));
264 dz += kFaWring2HWidth;
265
266
267///////////////////////////////////////
268// SAA1 //
269///////////////////////////////////////
270
271
272///////////////////////////////////////
273// FA/SAA1 W Joint //
274// Drawing ALIP2A__0060 //
275///////////////////////////////////////
276
277// Length of flange FA side
278 Float_t dzFaSaa1F1 = 2.8;
279// Inner radius of flange FA side
280 Float_t rInFaSaa1F1 = 32.0/2.;
281// Outer radius of flange FA side
282 Float_t rOuFaSaa1F1 = 39.5/2.;
283// Length of first straight section
284 Float_t dzFaSaa1S1 = 18.5 - dzFaSaa1F1;
285// Inner radius of first straight section
286 Float_t rInFaSaa1S1 = 22.3/2.;
287// Length of 45 deg transition region
288 Float_t dzFaSaa1T1 = 2.2;
289// Inner radius of second straight section
290 Float_t rInFaSaa1S2 = 17.9/2.;
291// Length of second straight section
292 Float_t dzFaSaa1S2 = 10.1;
293// Length of flange SAA1 side
294// Float_t dzFaSaa1F2 = 4.0;
295// Inner radius of flange FA side
296 Float_t rInFaSaa1F2 = 25.2/2.;
297// Length of joint
298 Float_t dzFaSaa1 = 34.8;
299// Outer Radius at the end of the joint
300 Float_t rOuFaSaa1E = 41.93/2.;
301
302
303 TGeoPcon* shFaSaa1 = new TGeoPcon(0., 360., 8);
304 z = 0;
305// Flange FA side
306 shFaSaa1->DefineSection( 0, z, rInFaSaa1F1, rOuFaSaa1F1);
307 z += dzFaSaa1F1;
308 shFaSaa1->DefineSection( 1, z, rInFaSaa1F1, 40.0);
309 shFaSaa1->DefineSection( 2, z, rInFaSaa1S1, 40.0);
310// First straight section
311 z += dzFaSaa1S1;
312 shFaSaa1->DefineSection( 3, z, rInFaSaa1S1, 40.0);
313// 45 deg transition region
314 z += dzFaSaa1T1;
315 shFaSaa1->DefineSection( 4, z, rInFaSaa1S2, 40.0);
316// Second straight section
317 z += dzFaSaa1S2;
318 shFaSaa1->DefineSection( 5, z, rInFaSaa1S2, 40.0);
319 shFaSaa1->DefineSection( 6, z, rInFaSaa1F2, 40.0);
320// Flange SAA1 side
321 z = dzFaSaa1;
322 shFaSaa1->DefineSection( 7, z, rInFaSaa1F2, rOuFaSaa1E);
323
324// Outer 2 deg line
325 for (Int_t i = 1; i < 7; i++) {
326 Double_t z = shFaSaa1->GetZ(i);
327 Double_t r1 = shFaSaa1->GetRmin(i);
328 Double_t r2 = 39.5/2. + z * TMath::Tan(2. * kDegRad) - 0.01;
329 shFaSaa1->DefineSection(i, z, r1, r2);
330 }
331 TGeoVolume* voFaSaa1 = new TGeoVolume("YFASAA1", shFaSaa1, kMedNiWsh);
332//
333// Outer region with lower transport cuts
334 TGeoCone* shFaSaa1O = new TGeoCone(dzFaSaa1/2., rOuFaSaa1F1 - 3.5, rOuFaSaa1F1, rOuFaSaa1E - 3.5, rOuFaSaa1E);
335 TGeoVolume* voFaSaa1O = new TGeoVolume("YFASAA1O", shFaSaa1O, kMedNiW);
336 voFaSaa1->AddNode(voFaSaa1O, 1, new TGeoTranslation(0., 0., dzFaSaa1/2.));
337
338
339///////////////////////////////////
340// SAA1 Steel Envelope //
341// Drawing ALIP2A__0039 //
342///////////////////////////////////
343
344 Float_t rOut; // Outer radius
345// Thickness of the steel envelope
346 Float_t dSt = 4.;
347// 4 Section
348// z-positions
349 Float_t zSaa1StEnv[5] = {111.2, 113.7, 229.3, 195.0};
350// Radii
351// 1
352 Float_t rOuSaa1StEnv1 = 40.4/2.;
353 Float_t rInSaa1StEnv1 = rOuSaa1StEnv1 - dSt;
354// 2
355 Float_t rInSaa1StEnv2 = 41.7/2.;
356 Float_t rOuSaa1StEnv2 = rInSaa1StEnv2 + dSt / TMath::Cos(2.0 * kDegRad);
357// 3
358 Float_t rOuSaa1StEnv3 = 57.6/2.;
359 Float_t rInSaa1StEnv3 = rOuSaa1StEnv3 - dSt;
360// 4
361 Float_t rInSaa1StEnv4 = 63.4/2.;
362 Float_t rOuSaa1StEnv4 = rInSaa1StEnv4 + dSt / TMath::Cos(1.6 * kDegRad);
363// end
364 Float_t rInSaa1StEnv5 = 74.28/2.;
365 Float_t rOuSaa1StEnv5 = rInSaa1StEnv5 + dSt / TMath::Cos(1.6 * kDegRad);
366// Relative starting position
367 Float_t zSaa1StEnvS = 3.;
368
369 TGeoPcon* shSaa1StEnv = new TGeoPcon(0., 360., 11);
370// 1st Section
371 z = zSaa1StEnvS;
372 shSaa1StEnv->DefineSection( 0, z, rInSaa1StEnv1, rOuSaa1StEnv1);
373 z += (zSaa1StEnv[0] - dSt);
374 shSaa1StEnv->DefineSection( 1, z, rInSaa1StEnv1, rOuSaa1StEnv1);
375// 1 - 2
376 shSaa1StEnv->DefineSection( 2, z, rInSaa1StEnv1, rOuSaa1StEnv2);
377 z += dSt;
378 shSaa1StEnv->DefineSection( 3, z, rInSaa1StEnv1, rOuSaa1StEnv2);
379// 2nd Section
380 shSaa1StEnv->DefineSection( 4, z, rInSaa1StEnv2, rOuSaa1StEnv2);
381 z += zSaa1StEnv[1];
382 shSaa1StEnv->DefineSection( 5, z, rInSaa1StEnv3, rOuSaa1StEnv3);
383// 3rd Section
384 z += (zSaa1StEnv[2] - dSt);
385 shSaa1StEnv->DefineSection( 6, z, rInSaa1StEnv3, rOuSaa1StEnv3);
386// 3 - 4
387 shSaa1StEnv->DefineSection( 7, z, rInSaa1StEnv3, rOuSaa1StEnv4);
388 z += dSt;
389 shSaa1StEnv->DefineSection( 8, z, rInSaa1StEnv3, rOuSaa1StEnv4);
390// 4th Section
391 shSaa1StEnv->DefineSection( 9, z, rInSaa1StEnv4, rOuSaa1StEnv4);
392 z += zSaa1StEnv[3];
393 shSaa1StEnv->DefineSection(10, z, rInSaa1StEnv5, rOuSaa1StEnv5);
394 TGeoVolume* voSaa1StEnv = new TGeoVolume("YSAA1_SteelEnvelope", shSaa1StEnv, kMedSteel);
395
396
397
398
399
400///////////////////////////////////
401// SAA1 W-Pipe //
402// Drawing ALIP2A__0059 //
403///////////////////////////////////
404//
405// Flange FA side
406// Length of first section
407 Float_t dzSaa1WPipeF1 = 0.9;
408// Outer radius
409 Float_t rOuSaa1WPipeF1 = 24.5/2.;
410// Inner Radius
411 Float_t rInSaa1WPipeF1 = 22.0/2.;
412// Length of second section
413 Float_t dzSaa1WPipeF11 = 2.1;
414// Inner Radius
415 Float_t rInSaa1WPipeF11 = 18.5/2.;
416//
417// Central tube
418// Length
419 Float_t dzSaa1WPipeC = 111.2;
420// Inner Radius at the end
421 Float_t rInSaa1WPipeC = 22.0/2.;
422// Outer Radius
423 Float_t rOuSaa1WPipeC = 31.9/2.;
424//
425// Flange SAA2 Side
426// Length
427 Float_t dzSaa1WPipeF2 = 6.0;
428// Outer radius
429 Float_t rOuSaa1WPipeF2 = 41.56/2.;
430
431//
432 TGeoPcon* shSaa1WPipe = new TGeoPcon(0., 360., 8);
433 z = 0.;
434// Flange FA side first section
435 shSaa1WPipe->DefineSection( 0, z, rInSaa1WPipeF1 , rOuSaa1WPipeF1);
436 z += dzSaa1WPipeF1;
437 shSaa1WPipe->DefineSection( 1, z, rInSaa1WPipeF1 , rOuSaa1WPipeF1);
438// Flange FA side second section
439 shSaa1WPipe->DefineSection( 2, z, rInSaa1WPipeF11, rOuSaa1WPipeF1);
440 z += dzSaa1WPipeF11;
441 shSaa1WPipe->DefineSection( 3, z, rInSaa1WPipeF11, rOuSaa1WPipeF1);
442// Central Section
443 shSaa1WPipe->DefineSection( 4, z, rInSaa1WPipeF11, rOuSaa1WPipeC);
444 z += dzSaa1WPipeC;
445 shSaa1WPipe->DefineSection( 5, z, rInSaa1WPipeC, rOuSaa1WPipeC);
446// Flange SAA2 side
447 shSaa1WPipe->DefineSection( 6, z, rInSaa1WPipeC, rOuSaa1WPipeF2);
448 z += dzSaa1WPipeF2;
449 shSaa1WPipe->DefineSection( 7, z, rInSaa1WPipeC, rOuSaa1WPipeF2);
450
451 TGeoVolume* voSaa1WPipe = new TGeoVolume("YSAA1_WPipe", shSaa1WPipe, kMedNiW);
452//
453// Inner region with higher transport cuts
454 TGeoTube* shSaa1WPipeI = new TGeoTube(rInSaa1WPipeC, rOuSaa1WPipeC, dzSaa1WPipeC/2.);
455 TGeoVolume* voSaa1WPipeI = new TGeoVolume("YSAA1_WPipeI", shSaa1WPipeI, kMedNiWsh);
456 voSaa1WPipe->AddNode(voSaa1WPipeI, 1, new TGeoTranslation(0., 0., dzSaa1WPipeF1 + dzSaa1WPipeF11 + dzSaa1WPipeC/2));
457
458
459///////////////////////////////////
460// SAA1 Pb Components //
461// Drawing ALIP2A__0078 //
462///////////////////////////////////
463//
464// Inner angle
465 Float_t tanAlpha = TMath::Tan(1.69 / 2. * kDegRad);
466 Float_t tanBeta = TMath::Tan(3.20 / 2. * kDegRad);
467//
468// 1st Section 2deg opening cone
469// Length
470 Float_t dzSaa1PbComp1 = 100.23;
471// Inner radius at entrance
472 Float_t rInSaa1PbComp1 = 22.0/2.; // It's 21 cm diameter in the drawing. Is this a typo ??!!
473// Outer radius at entrance
474 Float_t rOuSaa1PbComp1 = 42.0/2.;
475//
476// 2nd Section: Straight Section
477// Length
478 Float_t dzSaa1PbComp2 = 236.77;
479// Inner radius
480 Float_t rInSaa1PbComp2 = rInSaa1PbComp1 + dzSaa1PbComp1 * tanAlpha;
481// Outer radius
482 Float_t rOuSaa1PbComp2 = 49.0/2.;
483//
484// 3rd Section: 1.6deg opening cone until bellow
485// Length
486 Float_t dzSaa1PbComp3 = 175.6;
487// Inner radius
488 Float_t rInSaa1PbComp3 = rInSaa1PbComp2 + dzSaa1PbComp2 * tanAlpha;
489// Outer radius
490 Float_t rOuSaa1PbComp3 = 62.8/2.;
491//
492// 4th Section: Bellow region
493 Float_t dzSaa1PbComp4 = 26.4;
494// Inner radius
495 Float_t rInSaa1PbComp4 = 37.1/2.;
496 Float_t rInSaa1PbCompB = 43.0/2.;
497// Outer radius
498 Float_t rOuSaa1PbComp4 = rOuSaa1PbComp3 + dzSaa1PbComp3 * tanBeta;
499//
500// 5th Section: Flange SAA2 side
501// 1st detail
502 Float_t dzSaa1PbCompF1 = 4.;
503 Float_t rOuSaa1PbCompF1 = 74.1/2.;
504// 2nd detail
505 Float_t dzSaa1PbCompF2 = 3.;
506 Float_t rOuSaa1PbCompF2 = 66.0/2.;
507 Float_t rOuSaa1PbCompF3 = 58.0/2.;
508
509
510 TGeoPcon* shSaa1PbComp = new TGeoPcon(0., 360., 11);
511 z = 120.2;
512// 2 deg opening cone
513 shSaa1PbComp->DefineSection( 0, z, rInSaa1PbComp1, rOuSaa1PbComp1);
514 z += dzSaa1PbComp1;
515 shSaa1PbComp->DefineSection( 1, z, rInSaa1PbComp2, rOuSaa1PbComp2);
516// Straight section
517 z += dzSaa1PbComp2;
518 shSaa1PbComp->DefineSection( 2, z, rInSaa1PbComp3, rOuSaa1PbComp2);
519// 1.6 deg opening cone
520 shSaa1PbComp->DefineSection( 3, z, rInSaa1PbComp3, rOuSaa1PbComp3);
521 z += dzSaa1PbComp3;
522 shSaa1PbComp->DefineSection( 4, z, rInSaa1PbComp4, rOuSaa1PbComp4);
523// Bellow region until outer flange
524 shSaa1PbComp->DefineSection( 5, z, rInSaa1PbCompB, rOuSaa1PbComp4);
525 z += (dzSaa1PbComp4 - dzSaa1PbCompF1 - dzSaa1PbCompF2);
526 shSaa1PbComp->DefineSection( 6, z, rInSaa1PbCompB, rOuSaa1PbCompF1);
527 shSaa1PbComp->DefineSection( 7, z, rInSaa1PbCompB, rOuSaa1PbCompF2);
528// Flange first step
529 z += dzSaa1PbCompF1;
530 shSaa1PbComp->DefineSection( 8, z, rInSaa1PbCompB, rOuSaa1PbCompF2);
531 shSaa1PbComp->DefineSection( 9, z, rInSaa1PbCompB, rOuSaa1PbCompF3);
532// Flange second step
533 z += dzSaa1PbCompF2;
534 shSaa1PbComp->DefineSection( 10, z, rInSaa1PbCompB, rOuSaa1PbCompF3);
535
536 TGeoVolume* voSaa1PbComp = new TGeoVolume("YSAA1_PbComp", shSaa1PbComp, kMedPb);
537//
538// Inner region with higher transport cuts
539 TGeoPcon* shSaa1PbCompI = MakeShapeFromTemplate(shSaa1PbComp, 0., -3.);
540 TGeoVolume* voSaa1PbCompI = new TGeoVolume("YSAA1_PbCompI", shSaa1PbCompI, kMedPbSh);
1b148191 541 voSaa1PbComp->AddNode(voSaa1PbCompI, 1, gGeoIdentity);
20c7dbe5 542
543///////////////////////////////////
544// SAA1 W-Cone //
545// Drawing ALIP2A__0058 //
546///////////////////////////////////
547 // Length of the Cone
548 Float_t dzSaa1WCone = 52.9;
549 // Inner and outer radii
550 Float_t rInSaa1WCone1 = 20.4;
551 Float_t rOuSaa1WCone1 = rInSaa1WCone1 + 0.97;
552 Float_t rOuSaa1WCone2 = rInSaa1WCone1 + 2.80;
553 // relative z-position
554 Float_t zSaa1WCone = 9.3;
555
556
557 TGeoPcon* shSaa1WCone = new TGeoPcon(0., 360., 2);
558 z = zSaa1WCone;
559 shSaa1WCone->DefineSection( 0, z, rInSaa1WCone1, rOuSaa1WCone1);
560 z += dzSaa1WCone;
561 shSaa1WCone->DefineSection( 1, z, rInSaa1WCone1, rOuSaa1WCone2);
562 TGeoVolume* voSaa1WCone = new TGeoVolume("YSAA1_WCone", shSaa1WCone, kMedNiW);
563
564///////////////////////////////////
565// SAA1 Steel-Ring //
566// Drawing ALIP2A__0040 //
567///////////////////////////////////
568//
569// Length of the ring
570 Float_t dzSaa1StRing = 4.;
571// Inner and outer radius
572 Float_t rInSaa1String = 33.0;
573 Float_t rOuSaa1String = 41.1;
574// Relative z-position
575 Float_t zSaa1StRing = 652.2;
576 TGeoPcon* shSaa1StRing = new TGeoPcon(0., 360., 2);
577 z = zSaa1StRing;
578 shSaa1StRing->DefineSection( 0, z, rInSaa1String, rOuSaa1String);
579 z += dzSaa1StRing;
580 shSaa1StRing->DefineSection( 1, z, rInSaa1String, rOuSaa1String);
581 TGeoVolume* voSaa1StRing = new TGeoVolume("YSAA1_StRing", shSaa1StRing, kMedSteel);
582
583///////////////////////////////////
584// SAA1 Inner Tube //
585// Drawing ALIP2A__0082 //
586///////////////////////////////////
587//
588// Length of saa2: 659.2 cm
589// Length of inner tube: 631.9 cm
590// Lenth of bellow cavern: 27.3 cm
591// Radius at entrance 18.5/2, d = 0.3
592// Radius at exit 37.1/2, d = 0.3
593//
594 Float_t dzSaa1InnerTube = 631.9/2.; // Half length of the tube
595 Float_t rInSaa1InnerTube = 18.2/2.; // Radius at entrance
596 Float_t rOuSaa1InnerTube = 36.8/2.; // Radius at exit
597 Float_t dSaa1InnerTube = 0.2 ; // Thickness
598 TGeoVolume* voSaa1InnerTube = new TGeoVolume("YSAA1_InnerTube",
599 new TGeoCone(dzSaa1InnerTube,
600 rInSaa1InnerTube - dSaa1InnerTube, rInSaa1InnerTube,
601 rOuSaa1InnerTube - dSaa1InnerTube, rOuSaa1InnerTube),
602 kMedSteelSh);
603
604///////////////////////////////////
605// SAA1 Outer Shape //
606// Drawing ALIP2A__0107 //
607///////////////////////////////////
608 // Total length
609 Float_t dzSaa1 = 659.2;
610 //
611 TGeoPcon* shSaa1M = new TGeoPcon(0., 360., 20);
612 Float_t kSec = 0.01; // security distance to avoid trivial extrusions
613 Float_t rmin = rInSaa1InnerTube - dSaa1InnerTube - kSec;
614 rmax = rOuSaa1InnerTube - dSaa1InnerTube - kSec;
615 z = 0.;
616 shSaa1M->DefineSection( 0, z, rmin, rOuSaa1WPipeF1);
617 z += dzSaa1WPipeF1;
618 shSaa1M->DefineSection( 1, z, rmin, rOuSaa1WPipeF1);
619 shSaa1M->DefineSection( 2, z, 0., rOuSaa1WPipeF1);
620 z += dzSaa1WPipeF11;
621 shSaa1M->DefineSection( 3, z, 0., rOuSaa1WPipeF1);
622 shSaa1M->DefineSection( 4, z, 0., rOuSaa1StEnv1);
623 z = zSaa1WCone;
624 shSaa1M->DefineSection( 5, z, 0., rOuSaa1StEnv1);
625 shSaa1M->DefineSection( 6, z, 0., rOuSaa1WCone1);
626 z += dzSaa1WCone;
627 shSaa1M->DefineSection( 7, z, 0., rOuSaa1WCone2);
628 shSaa1M->DefineSection( 8, z, 0., rOuSaa1StEnv1);
629 z = zSaa1StEnv[0] - dSt + zSaa1StEnvS;
630 shSaa1M->DefineSection( 9, z, 0., rOuSaa1StEnv1);
631 shSaa1M->DefineSection(10, z, 0., rOuSaa1StEnv2);
632 z += (zSaa1StEnv[1] + dSt);
633 shSaa1M->DefineSection(11, z, 0., rOuSaa1StEnv3);
634 z += (zSaa1StEnv[2] - dSt);
635 shSaa1M->DefineSection(12, z, 0., rOuSaa1StEnv3);
636 shSaa1M->DefineSection(13, z, 0., rOuSaa1StEnv4);
637
638 z += (zSaa1StEnv[3] - dSt + dzSaa1PbCompF1 + dzSaa1PbCompF2 - dzSaa1PbComp4);
639 Float_t rmaxSaa1 = shSaa1M->GetRmax(13) + (z - shSaa1M->GetZ(13)) * TMath::Tan(1.6 * kDegRad);
640
641 shSaa1M->DefineSection(14, z, 0., rmaxSaa1);
642 shSaa1M->DefineSection(15, z, rmax, rmaxSaa1);
643 z = zSaa1StRing;
644 shSaa1M->DefineSection(16, z, rmax, rOuSaa1String);
645 z += dzSaa1PbCompF1;
646 shSaa1M->DefineSection(17, z, rmax, rOuSaa1String);
647 shSaa1M->DefineSection(18, z, rmax, rOuSaa1PbCompF3);
648 z += dzSaa1PbCompF2;
649 shSaa1M->DefineSection(19, z, rmax, rOuSaa1PbCompF3);
650
651//
652// Inner 1.69deg line
653 for (Int_t i = 2; i < 15; i++) {
654 Double_t z = shSaa1M->GetZ(i);
655 Double_t r2 = shSaa1M->GetRmax(i);
656 Double_t r1 = rmin + (z - 0.9) * TMath::Tan(1.69 / 2. * kDegRad) - kSec;
657 shSaa1M->DefineSection(i, z, r1, r2);
658 }
659
660 TGeoVolume* voSaa1M = new TGeoVolume("YSAA1M", shSaa1M, kMedAir);
e7300821 661 voSaa1M->SetVisibility(0);
662
20c7dbe5 663
664///////////////////////////////////
665// //
666// Recess Station 2 //
667// Drawing ALIP2A__0260 //
668///////////////////////////////////
669///////////////////////////////////
670// SAA1 W-Ring 1 //
671// Drawing ALIP2A__0217 //
672///////////////////////////////////
673 Float_t saa1Wring1Width = 5.85;
674 TGeoPcon* shSaa1Wring1 = new TGeoPcon(0., 360., 2);
675 shSaa1Wring1->DefineSection(0, 0.00 , 20.30, 23.175);
676 shSaa1Wring1->DefineSection(1, saa1Wring1Width, 20.30, 23.400);
677 TGeoVolume* voSaa1Wring1 = new TGeoVolume("YSAA1_WRING1", shSaa1Wring1, kMedNiW);
678
679///////////////////////////////////
680// SAA1 W-Ring 2 //
681// Drawing ALIP2A__0055 //
682///////////////////////////////////
683 Float_t saa1Wring2Rinner = 20.30;
684 Float_t saa1Wring2Router = 23.40;
685 Float_t saa1Wring2HWidth = 3.75;
686 Float_t saa1Wring2Cutoffx = 4.45;
687 Float_t saa1Wring2Cutoffy = 4.45;
688 TGeoTubeSeg* shSaa1Wring2a = new TGeoTubeSeg(saa1Wring2Rinner, saa1Wring2Router, saa1Wring2HWidth, 0., 90.);
689 shSaa1Wring2a->SetName("shSaa1Wring2a");
690 TGeoBBox* shSaa1Wring2b = new TGeoBBox(saa1Wring2Router / 2., saa1Wring2Router / 2., saa1Wring2HWidth);
691 shSaa1Wring2b->SetName("shSaa1Wring2b");
692 TGeoTranslation* trSaa1Wring2b
693 = new TGeoTranslation("trSaa1Wring2b", saa1Wring2Router / 2. + saa1Wring2Cutoffx, saa1Wring2Router / 2. + saa1Wring2Cutoffy, 0.);
694 trSaa1Wring2b->RegisterYourself();
695 TGeoCompositeShape* shSaa1Wring2 = new TGeoCompositeShape("shSaa1Wring2", "(shSaa1Wring2a)*(shSaa1Wring2b:trSaa1Wring2b)");
696 TGeoVolume* voSaa1Wring2 = new TGeoVolume("YSAA1_WRING2", shSaa1Wring2, kMedNiW);
697
698///////////////////////////////////
699// SAA1 W-Ring 3 //
700// Drawing ALIP2A__0216 //
701///////////////////////////////////
702
703 Float_t saa1Wring3Rinner = 20.30;
704 Float_t saa1Wring3Router = 23.40;
705 Float_t saa1Wring3HWidth = 3.75;
706 Float_t saa1Wring3Cutoffx = 4.50;
707 Float_t saa1Wring3Cutoffy = 4.40;
708 TGeoTubeSeg* shSaa1Wring3a = new TGeoTubeSeg(saa1Wring3Rinner, saa1Wring3Router, saa1Wring3HWidth, 0., 90.);
709 shSaa1Wring3a->SetName("shSaa1Wring3a");
710 TGeoBBox* shSaa1Wring3b = new TGeoBBox(saa1Wring3Router / 2., saa1Wring3Router / 2., saa1Wring3HWidth);
711 shSaa1Wring3b->SetName("shSaa1Wring3b");
712 TGeoTranslation* trSaa1Wring3b
713 = new TGeoTranslation("trSaa1Wring3b", saa1Wring3Router / 2. + saa1Wring3Cutoffx, saa1Wring3Router / 2. + saa1Wring3Cutoffy, 0.);
714 trSaa1Wring3b->RegisterYourself();
715 TGeoCompositeShape* shSaa1Wring3 = new TGeoCompositeShape("shSaa1Wring3", "(shSaa1Wring3a)*(shSaa1Wring3b:trSaa1Wring3b)");
716 TGeoVolume* voSaa1Wring3 = new TGeoVolume("YSAA1_WRING3", shSaa1Wring3, kMedNiW);
717
718///////////////////////////////////
719// SAA1 W-Ring 4 //
720// Drawing ALIP2A__0215 //
721///////////////////////////////////
722 Float_t saa1Wring4Width = 5.85;
723 TGeoPcon* shSaa1Wring4 = new TGeoPcon(0., 360., 5);
724 shSaa1Wring4->DefineSection(0, 0.00, 20.30, 23.40);
725 shSaa1Wring4->DefineSection(1, 1.00, 20.30, 23.40);
726 shSaa1Wring4->DefineSection(2, 1.00, 20.30, 24.50);
727 shSaa1Wring4->DefineSection(3, 4.85, 20.30, 24.80);
728 shSaa1Wring4->DefineSection(4, 5.85, 24.10, 24.80);
729 TGeoVolume* voSaa1Wring4 = new TGeoVolume("YSAA1_WRING4", shSaa1Wring4, kMedNiW);
730
731///////////////////////////////////
732// SAA1 W-Ring 5 //
733// Drawing ALIP2A__0218 //
734///////////////////////////////////
735 Float_t saa1Wring5Rinner = 20.30;
736 Float_t saa1Wring5Router = 23.40;
737 Float_t saa1Wring5HWidth = 0.85;
738 TGeoVolume* voSaa1Wring5 = new TGeoVolume("YSAA1_WRING5",
739 new TGeoTube(saa1Wring5Rinner, saa1Wring5Router, saa1Wring5HWidth), kMedNiW);
740//
741// Position the rings in the assembly
742//
743 TGeoVolumeAssembly* asSaa1ExtraShield = new TGeoVolumeAssembly("YSAA1ExtraShield");
744// Distance between rings
745 Float_t saa1DWrings = 2.3;
746//
747 dz = - (saa1Wring1Width + 6. * saa1Wring2HWidth + 2. * saa1Wring3HWidth + saa1Wring4Width + 2. * saa1Wring5HWidth + 2. * saa1DWrings) / 2.;
748 asSaa1ExtraShield->AddNode(voSaa1Wring1, 1, new TGeoTranslation(0., 0., dz));
749 dz += saa1Wring1Width;
750 dz += saa1Wring2HWidth;
751 asSaa1ExtraShield->AddNode(voSaa1Wring2, 1, new TGeoCombiTrans(0., 0., dz, rot000));
752 asSaa1ExtraShield->AddNode(voSaa1Wring2, 2, new TGeoCombiTrans(0., 0., dz, rot180));
753 dz += saa1Wring2HWidth;
754 dz += saa1DWrings;
755 dz += saa1Wring2HWidth;
756 asSaa1ExtraShield->AddNode(voSaa1Wring2, 3, new TGeoCombiTrans(0., 0., dz, rot090));
757 asSaa1ExtraShield->AddNode(voSaa1Wring2, 4, new TGeoCombiTrans(0., 0., dz, rot270));
758 dz += saa1Wring2HWidth;
759 dz += saa1Wring5HWidth;
760 asSaa1ExtraShield->AddNode(voSaa1Wring5, 1, new TGeoTranslation(0., 0., dz));
761 dz += saa1Wring5HWidth;
762 dz += saa1Wring2HWidth;
763 asSaa1ExtraShield->AddNode(voSaa1Wring2, 5, new TGeoCombiTrans(0., 0., dz, rot000));
764 asSaa1ExtraShield->AddNode(voSaa1Wring2, 6, new TGeoCombiTrans(0., 0., dz, rot180));
765 dz += saa1Wring2HWidth;
766 dz += saa1DWrings;
767 dz += saa1Wring3HWidth;
768 asSaa1ExtraShield->AddNode(voSaa1Wring3, 1, new TGeoCombiTrans(0., 0., dz, rot090));
769 asSaa1ExtraShield->AddNode(voSaa1Wring3, 2, new TGeoCombiTrans(0., 0., dz, rot270));
770 dz += saa1Wring3HWidth;
771 asSaa1ExtraShield->AddNode(voSaa1Wring4, 1, new TGeoTranslation(0., 0., dz));
772 dz += saa1Wring4Width;
773 const Float_t saa1ExtraShieldL = 48;
774//
775// Assemble SAA1
1b148191 776 voSaa1M->AddNode(voSaa1StEnv, 1, gGeoIdentity);
777 voSaa1M->AddNode(voSaa1WPipe, 1, gGeoIdentity);
778 voSaa1M->AddNode(voSaa1PbComp, 1, gGeoIdentity);
779 voSaa1M->AddNode(voSaa1WCone, 1, gGeoIdentity);
780 voSaa1M->AddNode(voSaa1StRing, 1, gGeoIdentity);
20c7dbe5 781 voSaa1M->AddNode(voSaa1InnerTube, 1, new TGeoTranslation(0., 0., dzSaa1InnerTube + 0.9));
782 TGeoVolumeAssembly* voSaa1 = new TGeoVolumeAssembly("YSAA1");
1b148191 783 voSaa1->AddNode(voSaa1M, 1, gGeoIdentity);
20c7dbe5 784
785///////////////////////////////////////
786// SAA1/SAA2 Pb Joint //
787// Drawing ALIP2A__0081 //
788///////////////////////////////////////
789//
790// Outer radius
791 Float_t rOuSaa1Saa2 = 70.0/2.;
792// Flange SAA1 side
793 Float_t dzSaa1Saa2F1 = 3.;
794 Float_t rInSaa1Saa2F1 = 58.5/2.;
795// 1st Central Section
796 Float_t dzSaa1Saa2C1 = 19.3;
797 Float_t rInSaa1Saa2C1 = 42.8/2.;
798// Transition Region
799 Float_t dzSaa1Saa2T = 3.3;
800// 1st Central Section
801 Float_t dzSaa1Saa2C2 = 6.2;
802 Float_t rInSaa1Saa2C2 = 36.2/2.;
803// Flange SAA2 side
804 Float_t dzSaa1Saa2F2 = 3.1;
805 Float_t rInSaa1Saa2F2 = 54.1/2.;
806// Total length
807 Float_t dzSaa1Saa2 = 34.9;
808
809
810 TGeoPcon* shSaa1Saa2Pb = new TGeoPcon(0., 360., 8);
811 z = 0.;
812// Flange SAA1 side
813 shSaa1Saa2Pb->DefineSection( 0, z, rInSaa1Saa2F1, rOuSaa1Saa2);
814 z += dzSaa1Saa2F1;
815 shSaa1Saa2Pb->DefineSection( 1, z, rInSaa1Saa2F1, rOuSaa1Saa2);
816 shSaa1Saa2Pb->DefineSection( 2, z, rInSaa1Saa2C1, rOuSaa1Saa2);
817// Central region 1
818 z += dzSaa1Saa2C1;
819 shSaa1Saa2Pb->DefineSection( 3, z, rInSaa1Saa2C1, rOuSaa1Saa2);
820// 45 deg transition
821 z += dzSaa1Saa2T;
822 shSaa1Saa2Pb->DefineSection( 4, z, rInSaa1Saa2C2, rOuSaa1Saa2);
823 z += dzSaa1Saa2C2;
824 shSaa1Saa2Pb->DefineSection( 5, z, rInSaa1Saa2C2, rOuSaa1Saa2);
825 shSaa1Saa2Pb->DefineSection( 6, z, rInSaa1Saa2F2, rOuSaa1Saa2);
826 z += dzSaa1Saa2F2;
827 shSaa1Saa2Pb->DefineSection( 7, z, rInSaa1Saa2F2, rOuSaa1Saa2);
828 TGeoVolume* voSaa1Saa2Pb = new TGeoVolume("YSAA1SAA2Pb", shSaa1Saa2Pb, kMedPb);
829//
830// Mother volume and outer steel envelope
831 Float_t rOuSaa1Saa2Steel = 36.9;
832
833 TGeoPcon* shSaa1Saa2 = MakeShapeFromTemplate(shSaa1Saa2Pb, 0., rOuSaa1Saa2Steel-rOuSaa1Saa2);
834 TGeoVolume* voSaa1Saa2 = new TGeoVolume("YSAA1SAA2", shSaa1Saa2, kMedSteel);
1b148191 835 voSaa1Saa2->AddNode(voSaa1Saa2Pb, 1, gGeoIdentity);
20c7dbe5 836//
837// Inner region with higher transport cuts
838//
839 TGeoPcon* shSaa1Saa2I = MakeShapeFromTemplate(shSaa1Saa2Pb, 0., -3.);
840 TGeoVolume* voSaa1Saa2I = new TGeoVolume("YSAA1_SAA2I", shSaa1Saa2I, kMedPbSh);
1b148191 841 voSaa1Saa2Pb->AddNode(voSaa1Saa2I, 1, gGeoIdentity);
20c7dbe5 842
843
844
845///////////////////////////////////////
846// SAA2 //
847///////////////////////////////////////
848
849
850///////////////////////////////////
851// SAA2 Steel Envelope //
852// Drawing ALIP2A__0041 //
853///////////////////////////////////
854 dSt = 4.; // Thickness of steel envelope
855 // Length of the first section
856 Float_t dzSaa2StEnv1 = 163.15;
857 Float_t rInSaa2StEnv1 = 65.8/2.;
858 // Length of the second section
d4e77c61 859 Float_t dzSaa2StEnv2 = 340.35 - 4.;
20c7dbe5 860 Float_t rInSaa2StEnv2 = 87.2/2.;
861 // Rel. starting position
862 Float_t zSaa2StEnv = 3.;
863
864 TGeoPcon* shSaa2StEnv = new TGeoPcon(0., 360., 6);
865 // First Section
866 z = zSaa2StEnv;
867 shSaa2StEnv->DefineSection( 0, z, rInSaa2StEnv1, rInSaa2StEnv1 + dSt);
868 z += dzSaa2StEnv1;
869 shSaa2StEnv->DefineSection( 1, z, rInSaa2StEnv1, rInSaa2StEnv1 + dSt);
870 // Transition region
871 shSaa2StEnv->DefineSection( 2, z, rInSaa2StEnv1, rInSaa2StEnv2 + dSt);
872 z += dSt;
873 shSaa2StEnv->DefineSection( 3, z, rInSaa2StEnv1, rInSaa2StEnv2 + dSt);
874 // Second section
875 shSaa2StEnv->DefineSection( 4, z, rInSaa2StEnv2, rInSaa2StEnv2 + dSt);
876 z += dzSaa2StEnv2;
877 shSaa2StEnv->DefineSection( 5, z, rInSaa2StEnv2, rInSaa2StEnv2 + dSt);
878
879 TGeoVolume* voSaa2StEnv = new TGeoVolume("YSAA2_SteelEnvelope", shSaa2StEnv, kMedSteel);
880
881
882///////////////////////////////////
883// SAA2 Pb Ring //
884// Drawing ALIP2A__0080 //
885// Drawing ALIP2A__0111 //
886///////////////////////////////////
887//
888// Rel. position in z
889 Float_t zSaa2PbRing = 35.25;
890// Length
891 Float_t dzSaa2PbRing = 65.90;
892// Inner radius
893 Float_t rInSaa2PbRing = 37.00;
894// Outer radius at front
895 Float_t rOuSaa2PbRingF = 42.74;
896// Outer Rradius at rear
897 Float_t rOuSaa2PbRingR = 44.58;
898
899 TGeoPcon* shSaa2PbRing = new TGeoPcon(0., 360., 2);
900 z = zSaa2PbRing;
901 shSaa2PbRing->DefineSection(0, z, rInSaa2PbRing, rOuSaa2PbRingF);
902 z += dzSaa2PbRing;
903 shSaa2PbRing->DefineSection(1, z, rInSaa2PbRing, rOuSaa2PbRingR);
904
905 TGeoVolume* voSaa2PbRing = new TGeoVolume("YSAA2_PbRing", shSaa2PbRing, kMedPb);
906
907
908///////////////////////////////////
909// SAA2 Pb Components //
910// Drawing ALIP2A__0079 //
911///////////////////////////////////
912 tanAlpha = TMath::Tan(1.89 / 2. * kDegRad);
913 TGeoPcon* shSaa2PbComp = new TGeoPcon(0., 360., 16);
914 // Total length
915 Float_t dzSaa2PbComp = 512.;
916 // Length of 1st bellow recess
917 Float_t dzSaa2PbCompB1 = 24.;
918 // Length of 2nd bellow recess
919 Float_t dzSaa2PbCompB2 = 27.;
920 // Flange on the SAA1 side Detail A
921 // 1st Step
922 Float_t dzSaa2PbCompA1 = 1.5;
923 Float_t rInSaa2PbCompA1 = 43.0/2.;
924 Float_t rOuSaa2PbCompA1 = 53.0/2.;
925 // 2nd Step
926 Float_t dzSaa2PbCompA2 = 1.5;
927 Float_t rInSaa2PbCompA2 = 36.8/2.;
928 Float_t rOuSaa2PbCompA2 = rOuSaa2PbCompA1;
929 // Straight section
930 Float_t dzSaa2PbCompA3 = 21.0;
931 Float_t rInSaa2PbCompA3 = rInSaa2PbCompA2;
932 Float_t rOuSaa2PbCompA3 = 65.2/2.;
933 //
934 // 1st Section (outer straight, inner 1.89/2. deg opening cone)
935 // Length
936 Float_t dzSaa2PbComp1 = 146.15;
937 // Inner radius at the end
938 Float_t rInSaa2PbComp1 = rInSaa2PbCompA3 + dzSaa2PbComp1 * tanAlpha;
939 // Outer radius
940 Float_t rOuSaa2PbComp1 = rOuSaa2PbCompA3;
941 //
942 // 2nd Section (outer straight, inner 1.89/2. deg opening cone)
943 // Length
944 Float_t dzSaa2PbComp2 = (dzSaa2PbComp - dzSaa2PbComp1 - dzSaa2PbCompB1 - dzSaa2PbCompB2);
945 // Inner radius at the end
946 Float_t rInSaa2PbComp2 = rInSaa2PbComp1 + dzSaa2PbComp2 * tanAlpha;
947 // Outer radius
948 Float_t rOuSaa2PbComp2 = 86.6/2.;
949 //
950 // Flange on the SAA3 side (Detail E)
951 //
952 // Straight Section
953 // Length dzSaa2PbCompB2 - 8.8 = 27 - 8.8 = 18.2
954 Float_t dzSaa2PbCompE1 = 18.2;
955 Float_t rInSaa2PbCompE1 = 52.0/2.;
956 Float_t rOuSaa2PbCompE1 = 86.6/2.;
957 // 45 deg transition
958 Float_t dzSaa2PbCompE2 = 2.7;
959 // 1st Step
960 Float_t dzSaa2PbCompE3 = 0.6;
961 Float_t rInSaa2PbCompE3 = 52.0/2.+ dzSaa2PbCompE2;
962 Float_t rOuSaa2PbCompE3 = 83.0/2.;
963 // 2nd Step
964 Float_t dzSaa2PbCompE4 = 4.0;
965 Float_t rOuSaa2PbCompE4 = 61.6/2.;
966 // end
967 Float_t dzSaa2PbCompE5 = 1.5;
968
969
970 //
971 // Flange on SAA1 side (Detail A)
972 z = 0.;
973 // 1st Step
974 shSaa2PbComp->DefineSection( 0, z, rInSaa2PbCompA1, rOuSaa2PbCompA1);
975 z += dzSaa2PbCompA1;
976 shSaa2PbComp->DefineSection( 1, z, rInSaa2PbCompA1, rOuSaa2PbCompA1);
977 shSaa2PbComp->DefineSection( 2, z, rInSaa2PbCompA2, rOuSaa2PbCompA2);
978 // 2nd Step
979 z += dzSaa2PbCompA2;
980 shSaa2PbComp->DefineSection( 3, z, rInSaa2PbCompA2, rOuSaa2PbCompA2);
981 shSaa2PbComp->DefineSection( 4, z, rInSaa2PbCompA3, rOuSaa2PbCompA3);
982 // straight section
983 z += dzSaa2PbCompA3;
984 shSaa2PbComp->DefineSection( 5, z, rInSaa2PbCompA3, rOuSaa2PbCompA3);
985 //
986 // Section 1
987 z += dzSaa2PbComp1;
988 shSaa2PbComp->DefineSection( 6, z, rInSaa2PbComp1, rOuSaa2PbComp1);
41dd8541 989 shSaa2PbComp->DefineSection( 7, z, rInSaa2PbComp1, rOuSaa2PbComp2);
20c7dbe5 990 //
991 // Section 2
20c7dbe5 992 z += dzSaa2PbComp2;
993 shSaa2PbComp->DefineSection( 8, z, rInSaa2PbComp2, rOuSaa2PbComp2);
994 //
995 // Flange SAA3 side (Detail E)
996 z += dzSaa2PbCompE1;
997 shSaa2PbComp->DefineSection( 9, z, rInSaa2PbCompE1, rOuSaa2PbCompE1);
998 // 45 deg transition
999 z += dzSaa2PbCompE2;
1000 shSaa2PbComp->DefineSection( 10, z, rInSaa2PbCompE3, rOuSaa2PbCompE1);
1001 // 1st step
1002 z += dzSaa2PbCompE3;
1003 shSaa2PbComp->DefineSection( 11, z, rInSaa2PbCompE3, rOuSaa2PbCompE1);
1004 shSaa2PbComp->DefineSection( 12, z, rInSaa2PbCompE3, rOuSaa2PbCompE3);
1005 // 2nd step
1006 z += dzSaa2PbCompE4;
1007 shSaa2PbComp->DefineSection( 13, z, rInSaa2PbCompE3, rOuSaa2PbCompE3);
1008 shSaa2PbComp->DefineSection( 14, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1009 // end
1010 z += dzSaa2PbCompE5;
1011 shSaa2PbComp->DefineSection( 15, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1012
e7300821 1013 TGeoVolume* voSaa2PbComp = new TGeoVolume("YSAA2_PbComp", shSaa2PbComp, kMedPbSh);
20c7dbe5 1014
1015
1016///////////////////////////////////
1017// SAA2 Inner Tube //
1018// Drawing ALIP2A__0083 //
1019///////////////////////////////////
1020//
1021//
1022//
1023// Length of saa2: 512.0 cm
1024// Length of inner tube: 501.7 cm
1025// Lenth of bellow recess: 10.3 cm ( 1.5 + 8.8)
1026// Radius at entrance 36.8/2, d = 0.1
1027// Radius at exit 52.0/2, d = 0.1
1028//
1029 const Float_t kSaa2InnerTubeL = 501.7; // Length of the tube
1030 const Float_t kSaa2InnerTubeRmin = 36.6/2.; // Radius at entrance
1031 const Float_t kSaa2InnerTubeRmax = 51.8/2.; // Radius at exit
1032 const Float_t kSaa2InnerTubeD = 0.2 ; // Thickness
1033 TGeoPcon* shSaa2InnerTube = new TGeoPcon(0., 360., 4);
1034 z = 0.;
1035 shSaa2InnerTube->DefineSection( 0, z, kSaa2InnerTubeRmin - kSaa2InnerTubeD, kSaa2InnerTubeRmin);
1036 z += dzSaa2PbCompA2 + dzSaa2PbCompA3;
1037 shSaa2InnerTube->DefineSection( 1, z, kSaa2InnerTubeRmin - kSaa2InnerTubeD, kSaa2InnerTubeRmin);
1038 z = kSaa2InnerTubeL - dzSaa2PbCompE1;
1039 shSaa2InnerTube->DefineSection( 2, z, kSaa2InnerTubeRmax - kSaa2InnerTubeD, kSaa2InnerTubeRmax);
1040 z = kSaa2InnerTubeL;
1041 shSaa2InnerTube->DefineSection( 3, z, kSaa2InnerTubeRmax - kSaa2InnerTubeD, kSaa2InnerTubeRmax);
e7300821 1042 TGeoVolume* voSaa2InnerTube = new TGeoVolume("YSAA2_InnerTube", shSaa2InnerTube, kMedSteelSh);
20c7dbe5 1043
1044///////////////////////////////////
1045// SAA2 Steel Ring //
1046// Drawing ALIP2A__0042 //
1047///////////////////////////////////
1048 // HalfWidth
1049 Float_t dzSaa2SteelRing = 2.;
1050 TGeoTube* shSaa2SteelRing = new TGeoTube(41.6, 47.6, dzSaa2SteelRing);
1051 TGeoVolume* voSaa2SteelRing = new TGeoVolume("YSAA2_SteelRing", shSaa2SteelRing, kMedSteel);
1052
1053///////////////////////////////////
1054// SAA2 Outer Shape //
1055// Drawing ALIP2A__0108 //
1056///////////////////////////////////
1057
1058 TGeoPcon* shSaa2 = new TGeoPcon(0., 360., 16);
1059 kSec = 0.02; // security distance to avoid trivial extrusions
1060 rmin = kSaa2InnerTubeRmin - kSaa2InnerTubeD - kSec;
1061 rmax = kSaa2InnerTubeRmax - kSaa2InnerTubeD - kSec;
1062 // Flange SAA1 side
1063 z = 0.;
1064 shSaa2->DefineSection( 0, z, rmin , rOuSaa2PbCompA1);
1065 z += dzSaa2PbCompA1 + dzSaa2PbCompA2;
1066 shSaa2->DefineSection( 1, z, rmin , rOuSaa2PbCompA1);
1067 shSaa2->DefineSection( 2, z, rmin , rInSaa2StEnv1 + dSt);
1068 z += dzSaa2PbCompA3;
1069 shSaa2->DefineSection( 3, z, rmin , rInSaa2StEnv1 + dSt);
1070 z = zSaa2PbRing;
1071 shSaa2->DefineSection( 4, z, 0. , rInSaa2StEnv1 + dSt);
1072 shSaa2->DefineSection( 5, z, 0. , rOuSaa2PbRingF);
1073 z += dzSaa2PbRing;
1074 shSaa2->DefineSection( 6, z, 0. , rOuSaa2PbRingR);
1075 shSaa2->DefineSection( 7, z, 0. , rInSaa2StEnv1 + dSt);
1076 z = dzSaa2PbCompA1 + dzSaa2PbCompA2 + dzSaa2StEnv1;
1077 shSaa2->DefineSection( 8, z, 0. , rInSaa2StEnv1 + dSt);
1078 shSaa2->DefineSection( 9, z, 0. , rInSaa2StEnv2 + dSt);
1079 z = dzSaa2PbComp - dzSaa2PbCompB2;
1080 shSaa2->DefineSection(10, z, rmax , rInSaa2StEnv2 + dSt);
1081 z += dzSaa2PbCompE1;
1082 shSaa2->DefineSection(11, z, rmax , rInSaa2StEnv2 + dSt);
1083 z += dzSaa2PbCompE2;
1084 shSaa2->DefineSection(12, z, rInSaa2PbCompE3, rInSaa2StEnv2 + dSt);
1085 z += (dzSaa2PbCompE3 + dzSaa2PbCompE4);
1086 shSaa2->DefineSection(13, z, rInSaa2PbCompE3, rInSaa2StEnv2 + dSt);
1087 shSaa2->DefineSection(14, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1088 z += dzSaa2PbCompE5;
1089 shSaa2->DefineSection(15, z, rInSaa2PbCompE3, rOuSaa2PbCompE4);
1090
1091 TGeoVolume* voSaa2 = new TGeoVolume("YSAA2", shSaa2, kMedAir);
e7300821 1092 voSaa2->SetVisibility(0);
20c7dbe5 1093// Inner 1.89/2 deg line
1094 Double_t zref = dzSaa2PbCompA1 + dzSaa2PbCompA2 + dzSaa2PbCompA3;
1095 for (Int_t i = 4; i < 10; i++) {
1096 Double_t z = shSaa2->GetZ(i);
1097 Double_t r2 = shSaa2->GetRmax(i);
1098 Double_t r1 = rmin + (z - zref) * TMath::Tan(1.89 / 2. * kDegRad) - kSec;
1099 shSaa2->DefineSection(i, z, r1, r2);
1100 }
1101
1102//
1103// Assemble SAA2
1b148191 1104 voSaa2->AddNode(voSaa2StEnv, 1, gGeoIdentity);
1105 voSaa2->AddNode(voSaa2PbRing, 1, gGeoIdentity);
1106 voSaa2->AddNode(voSaa2PbComp, 1, gGeoIdentity);
20c7dbe5 1107 voSaa2->AddNode(voSaa2InnerTube, 1, new TGeoTranslation(0., 0., dzSaa2PbCompA1));
1108 z = (dzSaa2PbComp - dzSaa2PbCompE4 - dzSaa2PbCompE5) + dzSaa2SteelRing;
1109 voSaa2->AddNode(voSaa2SteelRing, 1, new TGeoTranslation(0., 0., z));
1110
1111
1112///////////////////////////////////////
1113// SAA3 //
1114///////////////////////////////////////
1115//
1116//
1117// This is a study performed by S. Maridor
1118// The SAA3 has not yet been designed !!!!!!!!
1119//
1120///////////////////////////////////
1121// SAA3 Outer Shape //
ca5fa9ae 1122// Drawing ALIP2A__0288 //
20c7dbe5 1123///////////////////////////////////
1124
1125 TGeoVolumeAssembly* voSaa3 = new TGeoVolumeAssembly("YSAA3");
1126
1127///////////////////////////////////
ca5fa9ae 1128// SAA3 Concrete cone //
1129// Drawing ALIP2A__0284 //
20c7dbe5 1130///////////////////////////////////
1131// Block
1b148191 1132 TGeoBBox* shSaa3CCBlockO = new TGeoBBox(80./2., 80./2., 100./2.);
1133 shSaa3CCBlockO->SetName("Saa3CCBlockO");
20c7dbe5 1134
ca5fa9ae 1135 TGeoPcon* shSaa3InnerRegion = new TGeoPcon(0., 360., 4);
1136 shSaa3InnerRegion->DefineSection( 0, -60.0, 0., 27.1);
1137 shSaa3InnerRegion->DefineSection( 1, -23.0, 0., 27.1);
1138 shSaa3InnerRegion->DefineSection( 2, 29.1, 0., 12.3);
1139 shSaa3InnerRegion->DefineSection( 3, 60.0, 0., 12.3);
20c7dbe5 1140 shSaa3InnerRegion->SetName("Saa3InnerRegion");
1141
1b148191 1142 TGeoCompositeShape* shSaa3CCBlock = new TGeoCompositeShape("Saa3CCBlock", "Saa3CCBlockO-Saa3InnerRegion");
1143 TGeoVolume* voSaa3CCBlock = new TGeoVolume("YSAA3CCBlock", shSaa3CCBlock, kMedConcSh);
20c7dbe5 1144
20c7dbe5 1145
1b148191 1146 voSaa3->AddNode(voSaa3CCBlock, 1, gGeoIdentity);
1147
1148// Plate 1: 240 cm x 80 cm x 100 cm (x 2)
1149 TGeoVolume* voSaa3SteelPlate1 = new TGeoVolume("YSAA3SteelPlate1",
1150 new TGeoBBox(240./2., 80./2., 100./2.),
1151 kMedSteelSh);
1152 TGeoVolume* voSaa3SteelPlate11 = new TGeoVolume("YSAA3SteelPlate11",
1153 new TGeoBBox(240./2., 80./2., 10./2.),
1154 kMedSteel);
1155 voSaa3SteelPlate1->AddNode(voSaa3SteelPlate11, 1, new TGeoTranslation(0., 0., -45.));
1156 voSaa3->AddNode(voSaa3SteelPlate1, 1, new TGeoTranslation(0., +80., 0.));
1157 voSaa3->AddNode(voSaa3SteelPlate1, 2, new TGeoTranslation(0., -80., 0.));
1158
1159
1160// Plate 2: 80 cm x 80 cm x 100 cm (x 2)
1161 TGeoVolume* voSaa3SteelPlate2 = new TGeoVolume("YSAA3SteelPlate2",
1162 new TGeoBBox( 80./2., 80./2., 100./2.),
1163 kMedSteelSh);
1164 TGeoVolume* voSaa3SteelPlate21 = new TGeoVolume("YSAA3SteelPlate21",
1165 new TGeoBBox( 80./2., 80./2., 10./2.),
1166 kMedSteel);
1167 voSaa3SteelPlate2->AddNode(voSaa3SteelPlate21, 1, new TGeoTranslation(0., 0., -45.));
1168
1169 voSaa3->AddNode(voSaa3SteelPlate2, 1, new TGeoTranslation(+80, 0., 0.));
1170 voSaa3->AddNode(voSaa3SteelPlate2, 2, new TGeoTranslation(-80, 0., 0.));
1171
20c7dbe5 1172
1173///////////////////////////////////
1174// Muon Filter //
1175// Drawing ALIP2A__0105 //
1176///////////////////////////////////
1177 // Half Length
1178 Float_t dzMuonFilter = 60.;
1179
1180 TGeoBBox* shMuonFilterO = new TGeoBBox(550./2., 620./2., dzMuonFilter);
1181 shMuonFilterO->SetName("FilterO");
65acf7d6 1182 TGeoCombiTrans* trFilter = new TGeoCombiTrans("trFilter", 0., -dzMuonFilter * TMath::Tan(alhc * kDegrad), 0., rotlhc);
1183 trFilter->RegisterYourself();
1184 TGeoTube* shMuonFilterI = new TGeoTube(0., 48.8, dzMuonFilter + 20.);
20c7dbe5 1185 shMuonFilterI->SetName("FilterI");
65acf7d6 1186 TGeoCompositeShape* shMuonFilter = new TGeoCompositeShape("MuonFilter", "FilterO-FilterI:trFilter");
20c7dbe5 1187 //
1188 // !!!!! Needs to be inclined
1189 TGeoVolume* voMuonFilter = new TGeoVolume("YMuonFilter", shMuonFilter, kMedSteel);
1190
e7300821 1191 // Inner part with higher transport cuts
1192 Float_t dzMuonFilterH = 50.;
1193 TGeoBBox* shMuonFilterOH = new TGeoBBox(550./2., 620./2., dzMuonFilterH);
1194 shMuonFilterOH->SetName("FilterOH");
1195 TGeoTube* shMuonFilterIH = new TGeoTube(0., 50., dzMuonFilterH + 5.);
1196 shMuonFilterIH->SetName("FilterIH");
65acf7d6 1197 TGeoCompositeShape* shMuonFilterH = new TGeoCompositeShape("MuonFilterH", "FilterOH-FilterIH:trFilter");
e7300821 1198 TGeoVolume* voMuonFilterH = new TGeoVolume("YMuonFilterH", shMuonFilterH, kMedSteelSh);
1199 voMuonFilter->AddNode(voMuonFilterH, 1, gGeoIdentity);
1200
20c7dbe5 1201//
1202 TGeoVolumeAssembly* voSaa = new TGeoVolumeAssembly("YSAA");
1203//
1204//
1205//
1206//
1207//
1208// Starting position of the FA Flange/Tail
1209 Float_t ziFaWTail = 499.0;
1210// End of the FA Flange/Tail
1211 Float_t zoFaWTail = ziFaWTail + dzFaWTail;
1212// Starting position of the FA/SAA1 Joint (2.8 cm overlap with tail)
1213 Float_t ozFaSaa1 = 2.8;
1214 Float_t ziFaSaa1 = zoFaWTail - ozFaSaa1;
1215// End of the FA/SAA1 Joint
1216 Float_t zoFaSaa1 = ziFaSaa1 + dzFaSaa1;
1217// Starting position of SAA1 (2.0 cm overlap with joint)
1218 Float_t ozSaa1 = 2.;
1219 Float_t ziSaa1 = zoFaSaa1 - ozSaa1;
1220// End of SAA1
1221 Float_t zoSaa1 = ziSaa1 + dzSaa1;
1222// Starting position of SAA1/SAA2 Joint (1.95 cm overlap with SAA1)
1223 Float_t ziSaa1Saa2 = zoSaa1 - 1.95;
1224// End of SAA1/SAA2 Joint
1225 Float_t zoSaa1Saa2 = ziSaa1Saa2 + dzSaa1Saa2;
1226// Starting position of SAA2 (3.1 cm overlap with the joint)
1227 Float_t ziSaa2 = zoSaa1Saa2 - 3.1;
1228// End of SAA2
1229 Float_t zoSaa2 = ziSaa2 + dzSaa2PbComp;
1230// Position of SAA3
1231 Float_t zcSaa3 = zoSaa2 + 50.;
1232// Position of the Muon Filter
1233 Float_t zcFilter = 1465.9 + dzMuonFilter;
1234
20c7dbe5 1235 voSaa->AddNode(voFaWTail, 1, new TGeoTranslation(0., 0., ziFaWTail));
1236 voSaa->AddNode(voFaSaa1, 1, new TGeoTranslation(0., 0., ziFaSaa1));
1237 voSaa->AddNode(voSaa1 , 1, new TGeoTranslation(0., 0., ziSaa1));
1238 voSaa->AddNode(voSaa1Saa2, 1, new TGeoTranslation(0., 0., ziSaa1Saa2));
1239 voSaa->AddNode(voSaa2 , 1, new TGeoTranslation(0., 0., ziSaa2));
1240 voSaa->AddNode(voSaa3, 1, new TGeoTranslation(0., 0., zcSaa3));
e7300821 1241
20c7dbe5 1242
1243 TGeoRotation* rotxz = new TGeoRotation("rotxz", 90., 0., 90., 90., 180., 0.);
1244 top->AddNode(voSaa, 1, new TGeoCombiTrans(0., 0., 0., rotxz));
1245//
1246// Mother volume for muon stations 1+2 and shielding material placed between the quadrants
1247//
1248 // Position of the dipole
41dd8541 1249 Float_t ziDipole = 741.;
20c7dbe5 1250
1251 TGeoPcon* shYOUT1 = new TGeoPcon(0., 360., 25);
1252 Float_t eps = 1.e-2;
1253 // FA Tail Section
1254 for (Int_t iz = 0; iz < 9; iz++) {
1255 z = shFaWTail->GetZ(iz+1);
1256 if (iz == 8) z -= ozFaSaa1;
1257 shYOUT1->DefineSection(iz, z + ziFaWTail, shFaWTail->GetRmax(iz+1) + eps, 150.);
1258 }
1259 // FA-SAA1 Joint
1260 z = shYOUT1->GetZ(8);
1261
1262 for (Int_t iz = 9; iz < 17; iz++)
1263 shYOUT1->DefineSection(iz, z + shFaSaa1->GetZ(iz-9), shFaSaa1->GetRmax(iz-9) + eps, 150.);
1264
1265 z = shYOUT1->GetZ(16) - ozSaa1;
1266 // SAA1 - Dipole
1267 for (Int_t iz = 17; iz < 24; iz++)
1268 shYOUT1->DefineSection(iz, z + shSaa1M->GetZ(iz-13), shSaa1M->GetRmax(iz-13) + eps, 150.);
1269 // Distance between dipole and start of SAA1 2deg opening cone
e7300821 1270 dz = ziDipole - (zSaa1StEnv[0] - dSt + zSaa1StEnvS + ziSaa1);
20c7dbe5 1271 rOut = rOuSaa1StEnv2 + dz * TMath::Tan(2. * kDegRad);
1272
1273 shYOUT1->DefineSection(24, ziDipole, rOut + eps, 150.);
1274
1275 InvertPcon(shYOUT1);
1276 TGeoVolume* voYOUT1 = new TGeoVolume("YOUT1", shYOUT1, kMedAirMu);
e7300821 1277 voYOUT1->SetVisibility(0);
20c7dbe5 1278
1279 voYOUT1->AddNode(asSaa1ExtraShield, 1, new TGeoCombiTrans(0., 0., - (100.7 + 62.2 + saa1ExtraShieldL / 2. + ziFaWTail), rotxz));
1280 voYOUT1->AddNode(asFaExtraShield, 1, new TGeoCombiTrans(0., 0., - (16.41 + kFaWring2HWidth + ziFaWTail), rotxz));
1b148191 1281 top->AddNode(voYOUT1, 1, gGeoIdentity);
20c7dbe5 1282//
1283// Mother volume for muon stations 4+5 and trigger stations.
1284//
41dd8541 1285 Float_t zoDipole = 1249.;
20c7dbe5 1286
1287 TGeoPcon* shYOUT2 = new TGeoPcon(0., 360., 14);
1288 z = zoDipole;
1289 shYOUT2->DefineSection(0, z, rOuSaa1String, 252.);
1290// Start of SAA1-SAA2
1291 z = ziSaa1Saa2;
1292 shYOUT2->DefineSection(1, z, rOuSaa1String, 252.);
1293 shYOUT2->DefineSection(2, z, rOuSaa1Saa2Steel, 252.);
1294// End of SAA1-SAA2
1295 z = ziSaa2;
1296 shYOUT2->DefineSection(3, z, rOuSaa1Saa2Steel, 252.);
1297// SAA2
1298 shYOUT2->DefineSection( 4, z, rInSaa2StEnv1 + dSt, 252.);
1299 z = ziSaa2 + zSaa2PbRing;
1300 shYOUT2->DefineSection( 5, z, rInSaa2StEnv1 + dSt, 252.);
1301// Pb Cone
1302 shYOUT2->DefineSection( 6, z, rOuSaa2PbRingF, 252.);
1303 rmin = rOuSaa2PbRingF + (1380. - z) * TMath::Tan(1.6 * kDegRad);
1304 shYOUT2->DefineSection( 7, 1380., rmin, 252.);
1305 shYOUT2->DefineSection( 8, 1380., rmin, 304.);
1306 z = ziSaa2 + zSaa2PbRing + dzSaa2PbRing;
1307 shYOUT2->DefineSection( 9, z, rOuSaa2PbRingR, 304.);
1308// Straight Sections
1309 shYOUT2->DefineSection(10, z, rInSaa2StEnv1 + dSt, 460.);
1310 z = ziSaa2 + dzSaa2StEnv1;
1311 shYOUT2->DefineSection(11, z, rInSaa2StEnv1 + dSt, 460.);
1312 shYOUT2->DefineSection(12, z, rInSaa2StEnv2 + dSt, 460.);
1313 z += dzSaa2StEnv2;
1314 shYOUT2->DefineSection(13, z, rInSaa2StEnv2 + dSt, 460.);
1315
1316 InvertPcon(shYOUT2);
1317 TGeoVolume* voYOUT2 = new TGeoVolume("YOUT2", shYOUT2, kMedAirMu);
e7300821 1318 voYOUT2->SetVisibility(0);
65acf7d6 1319 voYOUT2->AddNode(voMuonFilter, 1, new TGeoCombiTrans(0., dzMuonFilter * TMath::Tan(alhc * kDegrad), -zcFilter, rotxzlhc));
1b148191 1320 top->AddNode(voYOUT2, 1, gGeoIdentity);
20c7dbe5 1321}
1322
1323void AliSHILv3::Init()
1324{
1325 //
1326 // Initialise the muon shield after it has been built
1327 //
1328 Int_t i;
1329 //
1330 if(AliLog::GetGlobalDebugLevel()>0) {
1331 printf("\n%s: ",ClassName());
1332 for(i=0;i<35;i++) printf("*");
1b148191 1333 printf(" SHILv3_INIT ");
20c7dbe5 1334 for(i=0;i<35;i++) printf("*");
1335 printf("\n%s: ",ClassName());
1336 //
1337 // Here the SHIL initialisation code (if any!)
1338 for(i=0;i<80;i++) printf("*");
1339 printf("\n");
1340 }
1341}
1342
1343void AliSHILv3::InvertPcon(TGeoPcon* pcon)
1344{
1345//
1346// z -> -z
1347//
1348 Int_t nz = pcon->GetNz();
1349 Double_t* z = new Double_t[nz];
1350 Double_t* rmin = new Double_t[nz];
1351 Double_t* rmax = new Double_t[nz];
1352
1353 Double_t* z0 = pcon->GetZ();
1354 Double_t* rmin0 = pcon->GetRmin();
1355 Double_t* rmax0 = pcon->GetRmax();
1356
1357 for (Int_t i = 0; i < nz; i++) {
1358 z[i] = z0[i];
1359 rmin[i] = rmin0[i];
1360 rmax[i] = rmax0[i];
1361 }
1362
1363 for (Int_t i = 0; i < nz; i++) {
1364 Int_t j = nz - i - 1;
1365 pcon->DefineSection(i, - z[j], rmin[j], rmax[j]);
1366 }
1367
1368 delete[] z;
1369 delete[] rmin;
1370 delete[] rmax;
1371}
1372
1373TGeoPcon* AliSHILv3::MakeShapeFromTemplate(TGeoPcon* pcon, Float_t drMin, Float_t drMax)
1374{
1375 //
1376 // Returns new shape based on a template changing
1377 // the inner radii by drMin and the outer radii by drMax.
1378 //
1379 Int_t nz = pcon->GetNz();
1380 TGeoPcon* cpcon = new TGeoPcon(0., 360., nz);
1381 for (Int_t i = 0; i < nz; i++)
1382 cpcon->DefineSection(i, pcon->GetZ(i), pcon->GetRmin(i) + drMin, pcon->GetRmax(i) + drMax);
1383 return cpcon;
1384}
1385
1386