New beamshield geometry with increased tolerances and insulation thickness.
[u/mrichter/AliRoot.git] / STRUCT / AliPIPEv1.cxx
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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
16/*
17$Log$
94de3818 18Revision 1.7 2000/06/11 12:37:25 morsch
19Coding rule violations corrected
20
b43eb0dc 21Revision 1.6 1999/09/29 09:24:30 fca
22Introduction of the Copyright and cvs Log
23
4c039060 24*/
25
fe4da5cc 26///////////////////////////////////////////////////////////////////////////////
27// //
28// Beam pipe class //
29// //
30//Begin_Html
31/*
1439f98e 32<img src="picts/AliPIPEClass.gif">
fe4da5cc 33*/
34//End_Html
35// //
36///////////////////////////////////////////////////////////////////////////////
37
38#include "AliPIPEv1.h"
39#include "AliRun.h"
94de3818 40#include "AliMagF.h"
fe4da5cc 41#include "AliMC.h"
42
43ClassImp(AliPIPEv1)
44
45//_____________________________________________________________________________
b8032157 46AliPIPEv1::AliPIPEv1()
fe4da5cc 47{
48 //
49 // Default constructor for beam pipe
50 //
51}
52
53//_____________________________________________________________________________
54AliPIPEv1::AliPIPEv1(const char *name, const char *title)
55 : AliPIPE(name,title)
56{
57 //
58 // Standard constructor for beam pipe
59 //
60}
61
62//_____________________________________________________________________________
63void AliPIPEv1::CreateGeometry()
64{
65 //
66 // Create Beam Pipe geometry
67 //
68 //Begin_Html
69 /*
1439f98e 70 <img src="picts/AliPIPE.gif">
fe4da5cc 71 */
72 //End_Html
73 //Begin_Html
74 /*
1439f98e 75 <img src="picts/AliPIPETree.gif">
fe4da5cc 76 */
77 //End_Html
78
b43eb0dc 79 Float_t tpar[3], dzmo, zpos, absorberDistance, absorberEnd;
fe4da5cc 80 Float_t r2, dr;
81
b43eb0dc 82 const Double_t kZFlange = 150;
fe4da5cc 83
ad51aeb0 84 Int_t *idtmed = fIdtmed->GetArray()-1999;
fe4da5cc 85
86
b43eb0dc 87 absorberDistance = 90.; // DEFINES DRIFT LENGTH
fe4da5cc 88 //z_nose = 102.;
89 //z_cone = 285.;
90 //theta1 = 24.; // 1. angle defining the front absorber
91 //theta2 = 5.; // 2. angle defining the front absorbe
92 //acc_max = 9.; // ANGLE POLAIRE MAXIMUM
93 //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION
b43eb0dc 94 absorberEnd = 503.;
fe4da5cc 95 //d_steel = 1.; // THICKNESS OF STEEL SUPPORT
96 //d_poly = 7.5;
97 //d_pb = 2.5;
98 //abs_cc = 315.; // DEFINES LENGTH OF CARBON
99 //abs_c = 358.;
100 //abs_s = 150.; // DEFINES W-SHIELD LENGTH
101 //abs_n = 80.; // START OF NOSE
102 //r_abs = 4.;
103 //r_pb = .1;
104 //epsilon = .01;
105 //theta_r = 3.;
106 //d_rear = 35.;
107 //theta_open = .75;
108
109 //z_l3 = 700.;
110 //zmag_in = 725.;
111 //zmag_out = 1225.;
112 //zfil_in = 1471.;
113 //zfil_out = 1591.;
114 //zcon_in = 1900.;
115 //zcon_out = 2e3;
116 //zcone_e = 859.0875;
117 //spec_l = 1800.;
118 //zplug_in = 1780.;
119 //zplug_out = 1900.;
120
121 // Chamber position
122 // CZ1=515.5
123 //cz1 = 511.;
124 //cz2 = 686.;
125 //cz3 = 971.;
126 //cz4 = 1245.;
127 //cz5 = 1445.;
128 //cz6 = 1610.;
129 //cz7 = 1710.;
130
131
132 // the mother of all beam pipes
133
134 tpar[0] = 0.;
135 tpar[1] = 3.;
b43eb0dc 136 tpar[2] = (absorberDistance + 700.) / 2.;
137 dzmo = tpar[2] - absorberDistance;
cfce8870 138 gMC->Gsvolu("QQMO", "TUBE", idtmed[2015], tpar, 3);
139 gMC->Gspos("QQMO", 1, "ALIC", 0., 0., -dzmo, 0, "ONLY");
fe4da5cc 140
141 // BEAM PIPE IN DRIFT SPACE
142
b43eb0dc 143 // -30-kZFlange
fe4da5cc 144 tpar[0] = 0.;
145 tpar[1] = 3.;
146 tpar[2] = 30;
cfce8870 147 gMC->Gsvolu("QDT1", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 148
149 tpar[0] = 2.9;
cfce8870 150 gMC->Gsvolu("QTB1", "TUBE", idtmed[2004], tpar, 3);
151 gMC->Gspos("QTB1", 1, "QDT1", 0., 0., 0., 0, "ONLY");
152 gMC->Gspos("QDT1", 1, "QQMO", 0., 0., dzmo, 0, "ONLY");
fe4da5cc 153
154
155 // 30-90
156 tpar[0] = 0.;
157 tpar[1] = 3.;
158 tpar[2] = 30.;
cfce8870 159 gMC->Gsvolu("QDT2", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 160
161 tpar[0] = 2.9;
cfce8870 162 gMC->Gsvolu("QTB2", "TUBE", idtmed[2004], tpar, 3);
163 gMC->Gspos("QTB2", 1, "QDT2", 0., 0., 0., 0, "ONLY");
164 gMC->Gspos("QDT2", 1, "QQMO", 0., 0., dzmo, 0, "ONLY");
fe4da5cc 165
166 // beam pipe outside absorber on the left side
167
168
169
b43eb0dc 170 // -30 - kZFlange
fe4da5cc 171 tpar[0] = 0.;
172 tpar[1] = 3.;
b43eb0dc 173 tpar[2] = (kZFlange - 30)/2;
cfce8870 174 gMC->Gsvolu("QDT5", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 175
176 tpar[0] = 2.9;
177 zpos = -30. - tpar[2] + dzmo;
cfce8870 178 gMC->Gsvolu("QTB5", "TUBE", idtmed[2004], tpar, 3);
179 gMC->Gspos("QTB5", 1, "QDT5", 0., 0., 0., 0, "ONLY");
180 gMC->Gspos("QDT5", 1, "QQMO", 0., 0., zpos, 0, "ONLY");
fe4da5cc 181
182 // STRAIGHT STEEL PIECE
183
b43eb0dc 184 zpos = -kZFlange;
fe4da5cc 185 r2 = 2.9;
186 dr = .015;
187 tpar[0] = 0.;
188 tpar[1] = r2 + dr;
189 tpar[2] = (zpos + 700.) / 2.;
cfce8870 190 gMC->Gsvolu("QDT7", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 191 tpar[0] = r2;
cfce8870 192 gMC->Gsvolu("QTB7", "TUBE", idtmed[2018], tpar, 3);
193 gMC->Gspos("QTB7", 1, "QDT7", 0., 0., 0., 0, "ONLY");
fe4da5cc 194 zpos = zpos - tpar[2] + dzmo;
cfce8870 195 gMC->Gspos("QDT7", 1, "QQMO", 0., 0., zpos, 0, "ONLY");
fe4da5cc 196
197 // flange dn 63
198
199 tpar[0] = 3.;
200 tpar[1] = 5.7;
201 tpar[2] = 2.;
cfce8870 202 gMC->Gsvolu("QN63", "TUBE", idtmed[2018], tpar, 3);
b43eb0dc 203 zpos = tpar[2] - kZFlange;
cfce8870 204 gMC->Gspos("QN63", 1, "ALIC", 0., 0., zpos, 0, "ONLY");
fe4da5cc 205
206
207 // Replace Absorber or Shield by Beam-Pipe
208 // in case they are not selected
209
b8032157 210 if (gAlice->GetModule("ABSO") == 0) {
fe4da5cc 211
b43eb0dc 212 gMC->Gspos("QN63", 2, "ALIC", 0., 0., kZFlange, 0, "ONLY");
fe4da5cc 213 r2 = 2.9;
214 dr = .1;
215 tpar[0] = 0.;
216 tpar[1] = r2 + dr;
b43eb0dc 217 tpar[2] = (kZFlange - absorberDistance) / 2.;
cfce8870 218 gMC->Gsvolu("QDT8", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 219 tpar[0] = r2;
cfce8870 220 gMC->Gsvolu("QTB8", "TUBE", idtmed[2004], tpar, 3);
221 gMC->Gspos("QTB8", 1, "QDT8", 0., 0., 0., 0, "ONLY");
b43eb0dc 222 zpos = absorberDistance + tpar[2];
cfce8870 223 gMC->Gspos("QDT8", 1, "ALIC", 0., 0., zpos, 0, "ONLY");
fe4da5cc 224 dr = .015;
225 tpar[0] = 0.;
226 tpar[1] = r2 + dr;
b43eb0dc 227 tpar[2] = (absorberEnd - kZFlange) / 2.;
cfce8870 228 gMC->Gsvolu("QDTS", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 229 tpar[0] = r2;
cfce8870 230 gMC->Gsvolu("QTBS", "TUBE", idtmed[2018], tpar, 3);
231 gMC->Gspos("QTBS", 1, "QDTS", 0., 0., 0., 0, "ONLY");
b43eb0dc 232 zpos = tpar[2] + kZFlange;
cfce8870 233 gMC->Gspos("QDTS", 1, "ALIC", 0., 0., zpos, 0, "ONLY");
fe4da5cc 234 }
b8032157 235 if (gAlice->GetModule("SHIL") == 0) {
fe4da5cc 236 r2 = 2.9;
237 dr = .015;
238 tpar[0] = 0.;
239 tpar[1] = r2 + dr;
b43eb0dc 240 tpar[2] = (700. - absorberEnd) / 2.;
cfce8870 241 gMC->Gsvolu("QDT9", "TUBE", idtmed[2015], tpar, 3);
fe4da5cc 242 tpar[0] = r2;
cfce8870 243 gMC->Gsvolu("QTB9", "TUBE", idtmed[2018], tpar, 3);
244 gMC->Gspos("QTB9", 1, "QDT9", 0., 0., 0., 0, "ONLY");
b43eb0dc 245 zpos = absorberEnd + tpar[2];
cfce8870 246 gMC->Gspos("QDT9", 1, "ALIC", 0., 0., zpos, 0, "ONLY");
fe4da5cc 247 }
248}
249
250//_____________________________________________________________________________
b8032157 251void AliPIPEv1::DrawModule()
fe4da5cc 252{
253 //
254 // Draw a shaded view of the Beam Pipe
255 //
256
fe4da5cc 257 // Set everything unseen
cfce8870 258 gMC->Gsatt("*", "seen", -1);
fe4da5cc 259 //
260 // Set ALIC mother transparent
cfce8870 261 gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc 262 //
263 // Set the volumes visible
cfce8870 264 gMC->Gsatt("QQMO","seen",1);
265 gMC->Gsatt("QDT1","seen",1);
266 gMC->Gsatt("QTB1","seen",1);
267 gMC->Gsatt("QDT2","seen",1);
268 gMC->Gsatt("QTB2","seen",1);
269 gMC->Gsatt("QDT5","seen",1);
270 gMC->Gsatt("QTB5","seen",1);
271 gMC->Gsatt("QDT7","seen",1);
272 gMC->Gsatt("QTB7","seen",1);
273 gMC->Gsatt("QN63","seen",1);
fe4da5cc 274 //
cfce8870 275 gMC->Gdopt("hide", "on");
276 gMC->Gdopt("shad", "on");
277 gMC->Gsatt("*", "fill", 7);
278 gMC->SetClipBox(".");
279 gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000);
280 gMC->DefaultRange();
281 gMC->Gdraw("alic", 40, 30, 0, 3, 5, .04, .04);
282 gMC->Gdhead(1111, "Beam Pipe");
283 gMC->Gdman(16, 6, "MAN");
284 gMC->Gdopt("hide","off");
fe4da5cc 285}
286
287//_____________________________________________________________________________
288void AliPIPEv1::CreateMaterials()
289{
290 //
291 // Create materials for beam pipe
292 //
293
b43eb0dc 294 Int_t isxfld = gAlice->Field()->Integ();
295 Float_t sxmgmx = gAlice->Field()->Max();
fe4da5cc 296
297 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
298 Float_t zsteel[4] = { 26.,24.,28.,14. };
299 Float_t wsteel[4] = { .715,.18,.1,.005 };
300
301 Float_t epsil, stmin, tmaxfd, deemax, stemax;
302
303 // STEEL
304
305
306 // --- Define the various materials for GEANT ---
307 AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7);
308 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
309 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
310 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
311
312 // ****************
313 // Defines tracking media parameters.
314 // Les valeurs sont commentees pour laisser le defaut
315 // a GEANT (version 3-21, page CONS200), f.m.
316 epsil = .001; // Tracking precision,
317 stemax = -1.; // Maximum displacement for multiple scat
318 tmaxfd = -20.; // Maximum angle due to field deflection
319 deemax = -.3; // Maximum fractional energy loss, DLS
320 stmin = -.8;
321
322 // Air
323
b43eb0dc 324 AliMedium(15, "AIR_L3_US", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
fe4da5cc 325
326 // Beryllium
327
b43eb0dc 328 AliMedium(5, "BE_L3_US", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
fe4da5cc 329
330 // Vacuum
331
b43eb0dc 332 AliMedium(16, "VA_L3_US", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
fe4da5cc 333
334 // Steel
335
b43eb0dc 336 AliMedium(19, "ST_L3_US", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
fe4da5cc 337}
338