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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 | $Log$ | |
43ea1292 | 18 | Revision 1.8 2000/10/02 21:28:15 fca |
19 | Removal of useless dependecies via forward declarations | |
20 | ||
94de3818 | 21 | Revision 1.7 2000/06/11 12:37:25 morsch |
22 | Coding rule violations corrected | |
23 | ||
b43eb0dc | 24 | Revision 1.6 1999/09/29 09:24:30 fca |
25 | Introduction of the Copyright and cvs Log | |
26 | ||
4c039060 | 27 | */ |
28 | ||
fe4da5cc | 29 | /////////////////////////////////////////////////////////////////////////////// |
30 | // // | |
31 | // Beam pipe class // | |
32 | // // | |
33 | //Begin_Html | |
34 | /* | |
1439f98e | 35 | <img src="picts/AliPIPEClass.gif"> |
fe4da5cc | 36 | */ |
37 | //End_Html | |
38 | // // | |
39 | /////////////////////////////////////////////////////////////////////////////// | |
40 | ||
41 | #include "AliPIPEv1.h" | |
42 | #include "AliRun.h" | |
94de3818 | 43 | #include "AliMagF.h" |
fe4da5cc | 44 | |
45 | ClassImp(AliPIPEv1) | |
46 | ||
47 | //_____________________________________________________________________________ | |
b8032157 | 48 | AliPIPEv1::AliPIPEv1() |
fe4da5cc | 49 | { |
50 | // | |
51 | // Default constructor for beam pipe | |
52 | // | |
53 | } | |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | AliPIPEv1::AliPIPEv1(const char *name, const char *title) | |
57 | : AliPIPE(name,title) | |
58 | { | |
59 | // | |
60 | // Standard constructor for beam pipe | |
61 | // | |
62 | } | |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | void AliPIPEv1::CreateGeometry() | |
66 | { | |
67 | // | |
68 | // Create Beam Pipe geometry | |
69 | // | |
70 | //Begin_Html | |
71 | /* | |
1439f98e | 72 | <img src="picts/AliPIPE.gif"> |
fe4da5cc | 73 | */ |
74 | //End_Html | |
75 | //Begin_Html | |
76 | /* | |
1439f98e | 77 | <img src="picts/AliPIPETree.gif"> |
fe4da5cc | 78 | */ |
79 | //End_Html | |
80 | ||
b43eb0dc | 81 | Float_t tpar[3], dzmo, zpos, absorberDistance, absorberEnd; |
fe4da5cc | 82 | Float_t r2, dr; |
83 | ||
b43eb0dc | 84 | const Double_t kZFlange = 150; |
fe4da5cc | 85 | |
ad51aeb0 | 86 | Int_t *idtmed = fIdtmed->GetArray()-1999; |
fe4da5cc | 87 | |
88 | ||
b43eb0dc | 89 | absorberDistance = 90.; // DEFINES DRIFT LENGTH |
fe4da5cc | 90 | //z_nose = 102.; |
91 | //z_cone = 285.; | |
92 | //theta1 = 24.; // 1. angle defining the front absorber | |
93 | //theta2 = 5.; // 2. angle defining the front absorbe | |
94 | //acc_max = 9.; // ANGLE POLAIRE MAXIMUM | |
95 | //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION | |
b43eb0dc | 96 | absorberEnd = 503.; |
fe4da5cc | 97 | //d_steel = 1.; // THICKNESS OF STEEL SUPPORT |
98 | //d_poly = 7.5; | |
99 | //d_pb = 2.5; | |
100 | //abs_cc = 315.; // DEFINES LENGTH OF CARBON | |
101 | //abs_c = 358.; | |
102 | //abs_s = 150.; // DEFINES W-SHIELD LENGTH | |
103 | //abs_n = 80.; // START OF NOSE | |
104 | //r_abs = 4.; | |
105 | //r_pb = .1; | |
106 | //epsilon = .01; | |
107 | //theta_r = 3.; | |
108 | //d_rear = 35.; | |
109 | //theta_open = .75; | |
110 | ||
111 | //z_l3 = 700.; | |
112 | //zmag_in = 725.; | |
113 | //zmag_out = 1225.; | |
114 | //zfil_in = 1471.; | |
115 | //zfil_out = 1591.; | |
116 | //zcon_in = 1900.; | |
117 | //zcon_out = 2e3; | |
118 | //zcone_e = 859.0875; | |
119 | //spec_l = 1800.; | |
120 | //zplug_in = 1780.; | |
121 | //zplug_out = 1900.; | |
122 | ||
123 | // Chamber position | |
124 | // CZ1=515.5 | |
125 | //cz1 = 511.; | |
126 | //cz2 = 686.; | |
127 | //cz3 = 971.; | |
128 | //cz4 = 1245.; | |
129 | //cz5 = 1445.; | |
130 | //cz6 = 1610.; | |
131 | //cz7 = 1710.; | |
132 | ||
133 | ||
134 | // the mother of all beam pipes | |
135 | ||
136 | tpar[0] = 0.; | |
137 | tpar[1] = 3.; | |
b43eb0dc | 138 | tpar[2] = (absorberDistance + 700.) / 2.; |
139 | dzmo = tpar[2] - absorberDistance; | |
cfce8870 | 140 | gMC->Gsvolu("QQMO", "TUBE", idtmed[2015], tpar, 3); |
141 | gMC->Gspos("QQMO", 1, "ALIC", 0., 0., -dzmo, 0, "ONLY"); | |
fe4da5cc | 142 | |
143 | // BEAM PIPE IN DRIFT SPACE | |
144 | ||
b43eb0dc | 145 | // -30-kZFlange |
fe4da5cc | 146 | tpar[0] = 0.; |
147 | tpar[1] = 3.; | |
148 | tpar[2] = 30; | |
cfce8870 | 149 | gMC->Gsvolu("QDT1", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 150 | |
151 | tpar[0] = 2.9; | |
cfce8870 | 152 | gMC->Gsvolu("QTB1", "TUBE", idtmed[2004], tpar, 3); |
153 | gMC->Gspos("QTB1", 1, "QDT1", 0., 0., 0., 0, "ONLY"); | |
154 | gMC->Gspos("QDT1", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
fe4da5cc | 155 | |
156 | ||
157 | // 30-90 | |
158 | tpar[0] = 0.; | |
159 | tpar[1] = 3.; | |
160 | tpar[2] = 30.; | |
cfce8870 | 161 | gMC->Gsvolu("QDT2", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 162 | |
163 | tpar[0] = 2.9; | |
cfce8870 | 164 | gMC->Gsvolu("QTB2", "TUBE", idtmed[2004], tpar, 3); |
165 | gMC->Gspos("QTB2", 1, "QDT2", 0., 0., 0., 0, "ONLY"); | |
166 | gMC->Gspos("QDT2", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
fe4da5cc | 167 | |
168 | // beam pipe outside absorber on the left side | |
169 | ||
170 | ||
171 | ||
b43eb0dc | 172 | // -30 - kZFlange |
fe4da5cc | 173 | tpar[0] = 0.; |
174 | tpar[1] = 3.; | |
b43eb0dc | 175 | tpar[2] = (kZFlange - 30)/2; |
cfce8870 | 176 | gMC->Gsvolu("QDT5", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 177 | |
178 | tpar[0] = 2.9; | |
179 | zpos = -30. - tpar[2] + dzmo; | |
cfce8870 | 180 | gMC->Gsvolu("QTB5", "TUBE", idtmed[2004], tpar, 3); |
181 | gMC->Gspos("QTB5", 1, "QDT5", 0., 0., 0., 0, "ONLY"); | |
182 | gMC->Gspos("QDT5", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); | |
fe4da5cc | 183 | |
184 | // STRAIGHT STEEL PIECE | |
185 | ||
b43eb0dc | 186 | zpos = -kZFlange; |
fe4da5cc | 187 | r2 = 2.9; |
188 | dr = .015; | |
189 | tpar[0] = 0.; | |
190 | tpar[1] = r2 + dr; | |
191 | tpar[2] = (zpos + 700.) / 2.; | |
cfce8870 | 192 | gMC->Gsvolu("QDT7", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 193 | tpar[0] = r2; |
cfce8870 | 194 | gMC->Gsvolu("QTB7", "TUBE", idtmed[2018], tpar, 3); |
195 | gMC->Gspos("QTB7", 1, "QDT7", 0., 0., 0., 0, "ONLY"); | |
fe4da5cc | 196 | zpos = zpos - tpar[2] + dzmo; |
cfce8870 | 197 | gMC->Gspos("QDT7", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 198 | |
199 | // flange dn 63 | |
200 | ||
201 | tpar[0] = 3.; | |
202 | tpar[1] = 5.7; | |
203 | tpar[2] = 2.; | |
cfce8870 | 204 | gMC->Gsvolu("QN63", "TUBE", idtmed[2018], tpar, 3); |
b43eb0dc | 205 | zpos = tpar[2] - kZFlange; |
cfce8870 | 206 | gMC->Gspos("QN63", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 207 | |
208 | ||
209 | // Replace Absorber or Shield by Beam-Pipe | |
210 | // in case they are not selected | |
211 | ||
b8032157 | 212 | if (gAlice->GetModule("ABSO") == 0) { |
fe4da5cc | 213 | |
b43eb0dc | 214 | gMC->Gspos("QN63", 2, "ALIC", 0., 0., kZFlange, 0, "ONLY"); |
fe4da5cc | 215 | r2 = 2.9; |
216 | dr = .1; | |
217 | tpar[0] = 0.; | |
218 | tpar[1] = r2 + dr; | |
b43eb0dc | 219 | tpar[2] = (kZFlange - absorberDistance) / 2.; |
cfce8870 | 220 | gMC->Gsvolu("QDT8", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 221 | tpar[0] = r2; |
cfce8870 | 222 | gMC->Gsvolu("QTB8", "TUBE", idtmed[2004], tpar, 3); |
223 | gMC->Gspos("QTB8", 1, "QDT8", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 224 | zpos = absorberDistance + tpar[2]; |
cfce8870 | 225 | gMC->Gspos("QDT8", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 226 | dr = .015; |
227 | tpar[0] = 0.; | |
228 | tpar[1] = r2 + dr; | |
b43eb0dc | 229 | tpar[2] = (absorberEnd - kZFlange) / 2.; |
cfce8870 | 230 | gMC->Gsvolu("QDTS", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 231 | tpar[0] = r2; |
cfce8870 | 232 | gMC->Gsvolu("QTBS", "TUBE", idtmed[2018], tpar, 3); |
233 | gMC->Gspos("QTBS", 1, "QDTS", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 234 | zpos = tpar[2] + kZFlange; |
cfce8870 | 235 | gMC->Gspos("QDTS", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 236 | } |
b8032157 | 237 | if (gAlice->GetModule("SHIL") == 0) { |
fe4da5cc | 238 | r2 = 2.9; |
239 | dr = .015; | |
240 | tpar[0] = 0.; | |
241 | tpar[1] = r2 + dr; | |
b43eb0dc | 242 | tpar[2] = (700. - absorberEnd) / 2.; |
cfce8870 | 243 | gMC->Gsvolu("QDT9", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 244 | tpar[0] = r2; |
cfce8870 | 245 | gMC->Gsvolu("QTB9", "TUBE", idtmed[2018], tpar, 3); |
246 | gMC->Gspos("QTB9", 1, "QDT9", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 247 | zpos = absorberEnd + tpar[2]; |
cfce8870 | 248 | gMC->Gspos("QDT9", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 249 | } |
250 | } | |
251 | ||
252 | //_____________________________________________________________________________ | |
b8032157 | 253 | void AliPIPEv1::DrawModule() |
fe4da5cc | 254 | { |
255 | // | |
256 | // Draw a shaded view of the Beam Pipe | |
257 | // | |
258 | ||
fe4da5cc | 259 | // Set everything unseen |
cfce8870 | 260 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 261 | // |
262 | // Set ALIC mother transparent | |
cfce8870 | 263 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 264 | // |
265 | // Set the volumes visible | |
cfce8870 | 266 | gMC->Gsatt("QQMO","seen",1); |
267 | gMC->Gsatt("QDT1","seen",1); | |
268 | gMC->Gsatt("QTB1","seen",1); | |
269 | gMC->Gsatt("QDT2","seen",1); | |
270 | gMC->Gsatt("QTB2","seen",1); | |
271 | gMC->Gsatt("QDT5","seen",1); | |
272 | gMC->Gsatt("QTB5","seen",1); | |
273 | gMC->Gsatt("QDT7","seen",1); | |
274 | gMC->Gsatt("QTB7","seen",1); | |
275 | gMC->Gsatt("QN63","seen",1); | |
fe4da5cc | 276 | // |
cfce8870 | 277 | gMC->Gdopt("hide", "on"); |
278 | gMC->Gdopt("shad", "on"); | |
279 | gMC->Gsatt("*", "fill", 7); | |
280 | gMC->SetClipBox("."); | |
281 | gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
282 | gMC->DefaultRange(); | |
283 | gMC->Gdraw("alic", 40, 30, 0, 3, 5, .04, .04); | |
284 | gMC->Gdhead(1111, "Beam Pipe"); | |
285 | gMC->Gdman(16, 6, "MAN"); | |
286 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 287 | } |
288 | ||
289 | //_____________________________________________________________________________ | |
290 | void AliPIPEv1::CreateMaterials() | |
291 | { | |
292 | // | |
293 | // Create materials for beam pipe | |
294 | // | |
295 | ||
b43eb0dc | 296 | Int_t isxfld = gAlice->Field()->Integ(); |
297 | Float_t sxmgmx = gAlice->Field()->Max(); | |
fe4da5cc | 298 | |
299 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
300 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
301 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
302 | ||
303 | Float_t epsil, stmin, tmaxfd, deemax, stemax; | |
304 | ||
305 | // STEEL | |
306 | ||
307 | ||
308 | // --- Define the various materials for GEANT --- | |
309 | AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7); | |
310 | AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
311 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); | |
312 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
313 | ||
314 | // **************** | |
315 | // Defines tracking media parameters. | |
316 | // Les valeurs sont commentees pour laisser le defaut | |
317 | // a GEANT (version 3-21, page CONS200), f.m. | |
318 | epsil = .001; // Tracking precision, | |
319 | stemax = -1.; // Maximum displacement for multiple scat | |
320 | tmaxfd = -20.; // Maximum angle due to field deflection | |
321 | deemax = -.3; // Maximum fractional energy loss, DLS | |
322 | stmin = -.8; | |
323 | ||
324 | // Air | |
325 | ||
b43eb0dc | 326 | AliMedium(15, "AIR_L3_US", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 327 | |
328 | // Beryllium | |
329 | ||
b43eb0dc | 330 | AliMedium(5, "BE_L3_US", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 331 | |
332 | // Vacuum | |
333 | ||
b43eb0dc | 334 | AliMedium(16, "VA_L3_US", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 335 | |
336 | // Steel | |
337 | ||
b43eb0dc | 338 | AliMedium(19, "ST_L3_US", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 339 | } |
340 |