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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 | ||
eeacf08b | 16 | /* $Id$ */ |
4c039060 | 17 | |
fe4da5cc | 18 | /////////////////////////////////////////////////////////////////////////////// |
19 | // // | |
eeacf08b | 20 | // Beam pipe class. Test version // |
fe4da5cc | 21 | // // |
22 | //Begin_Html | |
23 | /* | |
1439f98e | 24 | <img src="picts/AliPIPEClass.gif"> |
fe4da5cc | 25 | */ |
26 | //End_Html | |
27 | // // | |
28 | /////////////////////////////////////////////////////////////////////////////// | |
29 | ||
88cb7938 | 30 | #include <TVirtualMC.h> |
31 | ||
32 | #include "AliMagF.h" | |
fe4da5cc | 33 | #include "AliPIPEv1.h" |
34 | #include "AliRun.h" | |
fe4da5cc | 35 | |
36 | ClassImp(AliPIPEv1) | |
37 | ||
38 | //_____________________________________________________________________________ | |
b8032157 | 39 | AliPIPEv1::AliPIPEv1() |
fe4da5cc | 40 | { |
41 | // | |
42 | // Default constructor for beam pipe | |
43 | // | |
44 | } | |
45 | ||
46 | //_____________________________________________________________________________ | |
47 | AliPIPEv1::AliPIPEv1(const char *name, const char *title) | |
48 | : AliPIPE(name,title) | |
49 | { | |
50 | // | |
51 | // Standard constructor for beam pipe | |
52 | // | |
53 | } | |
54 | ||
55 | //_____________________________________________________________________________ | |
56 | void AliPIPEv1::CreateGeometry() | |
57 | { | |
58 | // | |
59 | // Create Beam Pipe geometry | |
60 | // | |
61 | //Begin_Html | |
62 | /* | |
1439f98e | 63 | <img src="picts/AliPIPE.gif"> |
fe4da5cc | 64 | */ |
65 | //End_Html | |
66 | //Begin_Html | |
67 | /* | |
1439f98e | 68 | <img src="picts/AliPIPETree.gif"> |
fe4da5cc | 69 | */ |
70 | //End_Html | |
71 | ||
b43eb0dc | 72 | Float_t tpar[3], dzmo, zpos, absorberDistance, absorberEnd; |
fe4da5cc | 73 | Float_t r2, dr; |
74 | ||
b43eb0dc | 75 | const Double_t kZFlange = 150; |
fe4da5cc | 76 | |
ad51aeb0 | 77 | Int_t *idtmed = fIdtmed->GetArray()-1999; |
fe4da5cc | 78 | |
79 | ||
b43eb0dc | 80 | absorberDistance = 90.; // DEFINES DRIFT LENGTH |
fe4da5cc | 81 | //z_nose = 102.; |
82 | //z_cone = 285.; | |
83 | //theta1 = 24.; // 1. angle defining the front absorber | |
84 | //theta2 = 5.; // 2. angle defining the front absorbe | |
85 | //acc_max = 9.; // ANGLE POLAIRE MAXIMUM | |
86 | //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION | |
b43eb0dc | 87 | absorberEnd = 503.; |
fe4da5cc | 88 | //d_steel = 1.; // THICKNESS OF STEEL SUPPORT |
89 | //d_poly = 7.5; | |
90 | //d_pb = 2.5; | |
91 | //abs_cc = 315.; // DEFINES LENGTH OF CARBON | |
92 | //abs_c = 358.; | |
93 | //abs_s = 150.; // DEFINES W-SHIELD LENGTH | |
94 | //abs_n = 80.; // START OF NOSE | |
95 | //r_abs = 4.; | |
96 | //r_pb = .1; | |
97 | //epsilon = .01; | |
98 | //theta_r = 3.; | |
99 | //d_rear = 35.; | |
100 | //theta_open = .75; | |
101 | ||
102 | //z_l3 = 700.; | |
103 | //zmag_in = 725.; | |
104 | //zmag_out = 1225.; | |
105 | //zfil_in = 1471.; | |
106 | //zfil_out = 1591.; | |
107 | //zcon_in = 1900.; | |
108 | //zcon_out = 2e3; | |
109 | //zcone_e = 859.0875; | |
110 | //spec_l = 1800.; | |
111 | //zplug_in = 1780.; | |
112 | //zplug_out = 1900.; | |
113 | ||
114 | // Chamber position | |
115 | // CZ1=515.5 | |
116 | //cz1 = 511.; | |
117 | //cz2 = 686.; | |
118 | //cz3 = 971.; | |
119 | //cz4 = 1245.; | |
120 | //cz5 = 1445.; | |
121 | //cz6 = 1610.; | |
122 | //cz7 = 1710.; | |
123 | ||
124 | ||
125 | // the mother of all beam pipes | |
126 | ||
127 | tpar[0] = 0.; | |
128 | tpar[1] = 3.; | |
b43eb0dc | 129 | tpar[2] = (absorberDistance + 700.) / 2.; |
130 | dzmo = tpar[2] - absorberDistance; | |
cfce8870 | 131 | gMC->Gsvolu("QQMO", "TUBE", idtmed[2015], tpar, 3); |
132 | gMC->Gspos("QQMO", 1, "ALIC", 0., 0., -dzmo, 0, "ONLY"); | |
fe4da5cc | 133 | |
134 | // BEAM PIPE IN DRIFT SPACE | |
135 | ||
b43eb0dc | 136 | // -30-kZFlange |
fe4da5cc | 137 | tpar[0] = 0.; |
138 | tpar[1] = 3.; | |
139 | tpar[2] = 30; | |
cfce8870 | 140 | gMC->Gsvolu("QDT1", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 141 | |
142 | tpar[0] = 2.9; | |
cfce8870 | 143 | gMC->Gsvolu("QTB1", "TUBE", idtmed[2004], tpar, 3); |
144 | gMC->Gspos("QTB1", 1, "QDT1", 0., 0., 0., 0, "ONLY"); | |
145 | gMC->Gspos("QDT1", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
fe4da5cc | 146 | |
147 | ||
148 | // 30-90 | |
149 | tpar[0] = 0.; | |
150 | tpar[1] = 3.; | |
151 | tpar[2] = 30.; | |
cfce8870 | 152 | gMC->Gsvolu("QDT2", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 153 | |
154 | tpar[0] = 2.9; | |
cfce8870 | 155 | gMC->Gsvolu("QTB2", "TUBE", idtmed[2004], tpar, 3); |
156 | gMC->Gspos("QTB2", 1, "QDT2", 0., 0., 0., 0, "ONLY"); | |
157 | gMC->Gspos("QDT2", 1, "QQMO", 0., 0., dzmo, 0, "ONLY"); | |
fe4da5cc | 158 | |
159 | // beam pipe outside absorber on the left side | |
160 | ||
161 | ||
162 | ||
b43eb0dc | 163 | // -30 - kZFlange |
fe4da5cc | 164 | tpar[0] = 0.; |
165 | tpar[1] = 3.; | |
b43eb0dc | 166 | tpar[2] = (kZFlange - 30)/2; |
cfce8870 | 167 | gMC->Gsvolu("QDT5", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 168 | |
169 | tpar[0] = 2.9; | |
170 | zpos = -30. - tpar[2] + dzmo; | |
cfce8870 | 171 | gMC->Gsvolu("QTB5", "TUBE", idtmed[2004], tpar, 3); |
172 | gMC->Gspos("QTB5", 1, "QDT5", 0., 0., 0., 0, "ONLY"); | |
173 | gMC->Gspos("QDT5", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); | |
fe4da5cc | 174 | |
175 | // STRAIGHT STEEL PIECE | |
176 | ||
b43eb0dc | 177 | zpos = -kZFlange; |
fe4da5cc | 178 | r2 = 2.9; |
179 | dr = .015; | |
180 | tpar[0] = 0.; | |
181 | tpar[1] = r2 + dr; | |
182 | tpar[2] = (zpos + 700.) / 2.; | |
cfce8870 | 183 | gMC->Gsvolu("QDT7", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 184 | tpar[0] = r2; |
cfce8870 | 185 | gMC->Gsvolu("QTB7", "TUBE", idtmed[2018], tpar, 3); |
186 | gMC->Gspos("QTB7", 1, "QDT7", 0., 0., 0., 0, "ONLY"); | |
fe4da5cc | 187 | zpos = zpos - tpar[2] + dzmo; |
cfce8870 | 188 | gMC->Gspos("QDT7", 1, "QQMO", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 189 | |
190 | // flange dn 63 | |
191 | ||
192 | tpar[0] = 3.; | |
193 | tpar[1] = 5.7; | |
194 | tpar[2] = 2.; | |
cfce8870 | 195 | gMC->Gsvolu("QN63", "TUBE", idtmed[2018], tpar, 3); |
b43eb0dc | 196 | zpos = tpar[2] - kZFlange; |
cfce8870 | 197 | gMC->Gspos("QN63", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 198 | |
199 | ||
200 | // Replace Absorber or Shield by Beam-Pipe | |
201 | // in case they are not selected | |
202 | ||
b8032157 | 203 | if (gAlice->GetModule("ABSO") == 0) { |
fe4da5cc | 204 | |
b43eb0dc | 205 | gMC->Gspos("QN63", 2, "ALIC", 0., 0., kZFlange, 0, "ONLY"); |
fe4da5cc | 206 | r2 = 2.9; |
207 | dr = .1; | |
208 | tpar[0] = 0.; | |
209 | tpar[1] = r2 + dr; | |
b43eb0dc | 210 | tpar[2] = (kZFlange - absorberDistance) / 2.; |
cfce8870 | 211 | gMC->Gsvolu("QDT8", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 212 | tpar[0] = r2; |
cfce8870 | 213 | gMC->Gsvolu("QTB8", "TUBE", idtmed[2004], tpar, 3); |
214 | gMC->Gspos("QTB8", 1, "QDT8", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 215 | zpos = absorberDistance + tpar[2]; |
cfce8870 | 216 | gMC->Gspos("QDT8", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 217 | dr = .015; |
218 | tpar[0] = 0.; | |
219 | tpar[1] = r2 + dr; | |
b43eb0dc | 220 | tpar[2] = (absorberEnd - kZFlange) / 2.; |
cfce8870 | 221 | gMC->Gsvolu("QDTS", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 222 | tpar[0] = r2; |
cfce8870 | 223 | gMC->Gsvolu("QTBS", "TUBE", idtmed[2018], tpar, 3); |
224 | gMC->Gspos("QTBS", 1, "QDTS", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 225 | zpos = tpar[2] + kZFlange; |
cfce8870 | 226 | gMC->Gspos("QDTS", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 227 | } |
b8032157 | 228 | if (gAlice->GetModule("SHIL") == 0) { |
fe4da5cc | 229 | r2 = 2.9; |
230 | dr = .015; | |
231 | tpar[0] = 0.; | |
232 | tpar[1] = r2 + dr; | |
b43eb0dc | 233 | tpar[2] = (700. - absorberEnd) / 2.; |
cfce8870 | 234 | gMC->Gsvolu("QDT9", "TUBE", idtmed[2015], tpar, 3); |
fe4da5cc | 235 | tpar[0] = r2; |
cfce8870 | 236 | gMC->Gsvolu("QTB9", "TUBE", idtmed[2018], tpar, 3); |
237 | gMC->Gspos("QTB9", 1, "QDT9", 0., 0., 0., 0, "ONLY"); | |
b43eb0dc | 238 | zpos = absorberEnd + tpar[2]; |
cfce8870 | 239 | gMC->Gspos("QDT9", 1, "ALIC", 0., 0., zpos, 0, "ONLY"); |
fe4da5cc | 240 | } |
241 | } | |
242 | ||
243 | //_____________________________________________________________________________ | |
eeacf08b | 244 | void AliPIPEv1::DrawModule() const |
fe4da5cc | 245 | { |
246 | // | |
247 | // Draw a shaded view of the Beam Pipe | |
248 | // | |
249 | ||
fe4da5cc | 250 | // Set everything unseen |
cfce8870 | 251 | gMC->Gsatt("*", "seen", -1); |
fe4da5cc | 252 | // |
253 | // Set ALIC mother transparent | |
cfce8870 | 254 | gMC->Gsatt("ALIC","SEEN",0); |
fe4da5cc | 255 | // |
256 | // Set the volumes visible | |
cfce8870 | 257 | gMC->Gsatt("QQMO","seen",1); |
258 | gMC->Gsatt("QDT1","seen",1); | |
259 | gMC->Gsatt("QTB1","seen",1); | |
260 | gMC->Gsatt("QDT2","seen",1); | |
261 | gMC->Gsatt("QTB2","seen",1); | |
262 | gMC->Gsatt("QDT5","seen",1); | |
263 | gMC->Gsatt("QTB5","seen",1); | |
264 | gMC->Gsatt("QDT7","seen",1); | |
265 | gMC->Gsatt("QTB7","seen",1); | |
266 | gMC->Gsatt("QN63","seen",1); | |
fe4da5cc | 267 | // |
cfce8870 | 268 | gMC->Gdopt("hide", "on"); |
269 | gMC->Gdopt("shad", "on"); | |
270 | gMC->Gsatt("*", "fill", 7); | |
271 | gMC->SetClipBox("."); | |
272 | gMC->SetClipBox("*", 0, 3000, -3000, 3000, -6000, 6000); | |
273 | gMC->DefaultRange(); | |
274 | gMC->Gdraw("alic", 40, 30, 0, 3, 5, .04, .04); | |
275 | gMC->Gdhead(1111, "Beam Pipe"); | |
276 | gMC->Gdman(16, 6, "MAN"); | |
277 | gMC->Gdopt("hide","off"); | |
fe4da5cc | 278 | } |
279 | ||
280 | //_____________________________________________________________________________ | |
281 | void AliPIPEv1::CreateMaterials() | |
282 | { | |
283 | // | |
284 | // Create materials for beam pipe | |
285 | // | |
286 | ||
b43eb0dc | 287 | Int_t isxfld = gAlice->Field()->Integ(); |
288 | Float_t sxmgmx = gAlice->Field()->Max(); | |
fe4da5cc | 289 | |
290 | Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 }; | |
291 | Float_t zsteel[4] = { 26.,24.,28.,14. }; | |
292 | Float_t wsteel[4] = { .715,.18,.1,.005 }; | |
293 | ||
294 | Float_t epsil, stmin, tmaxfd, deemax, stemax; | |
295 | ||
296 | // STEEL | |
297 | ||
298 | ||
299 | // --- Define the various materials for GEANT --- | |
300 | AliMaterial(5, "BERILLIUM$", 9.01, 4., 1.848, 35.3, 36.7); | |
301 | AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
302 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500); | |
303 | AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel); | |
304 | ||
305 | // **************** | |
306 | // Defines tracking media parameters. | |
307 | // Les valeurs sont commentees pour laisser le defaut | |
308 | // a GEANT (version 3-21, page CONS200), f.m. | |
309 | epsil = .001; // Tracking precision, | |
310 | stemax = -1.; // Maximum displacement for multiple scat | |
311 | tmaxfd = -20.; // Maximum angle due to field deflection | |
312 | deemax = -.3; // Maximum fractional energy loss, DLS | |
313 | stmin = -.8; | |
314 | ||
315 | // Air | |
316 | ||
b43eb0dc | 317 | AliMedium(15, "AIR_L3_US", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 318 | |
319 | // Beryllium | |
320 | ||
b43eb0dc | 321 | AliMedium(5, "BE_L3_US", 5, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 322 | |
323 | // Vacuum | |
324 | ||
b43eb0dc | 325 | AliMedium(16, "VA_L3_US", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 326 | |
327 | // Steel | |
328 | ||
b43eb0dc | 329 | AliMedium(19, "ST_L3_US", 19, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); |
fe4da5cc | 330 | } |
331 |