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fe4da5cc 1///////////////////////////////////////////////////////////////////////////////
2// //
3// Magnetic Dipole version 1 //
4// //
5//Begin_Html
6/*
7<img src="gif/AliDIPOv2Class.gif">
8</pre>
9<br clear=left>
10<font size=+2 color=red>
11<p>The responsible person for this module is
12<a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
13</font>
14<pre>
15*/
16//End_Html
17// //
18// //
19///////////////////////////////////////////////////////////////////////////////
20
21#include "AliDIPOv2.h"
22#include "AliRun.h"
23#include "AliMC.h"
24#include "AliConst.h"
25
26ClassImp(AliDIPOv2)
27
28//_____________________________________________________________________________
29AliDIPOv2::AliDIPOv2() : AliDIPO()
30{
31 //
32 // Default constructor for magnetic dipole version 2
33 //
34}
35
36//_____________________________________________________________________________
37AliDIPOv2::AliDIPOv2(const char *name, const char *title)
38 : AliDIPO(name,title)
39{
40 //
41 // Standard constructor for the magnetic dipole version 2
42 SetMarkerColor(7);
43 SetMarkerStyle(2);
44 SetMarkerSize(0.4);
45}
46
47//_____________________________________________________________________________
48void AliDIPOv2::CreateGeometry()
49{
50 //
51 // Creation of the geometry of the magnetic DIPOLE version 2
52 //
53 //Begin_Html
54 /*
55 <img src="gif/AliDIPOv2Tree.gif">
56 */
57 //End_Html
58 //Begin_Html
59 /*
60 <img src="gif/AliDIPOv2.gif">
61 */
62 //End_Html
63
64 AliMC* pMC = AliMC::GetMC();
65
66 Float_t cpar[5], tpar[3], ypar[4];
67 Float_t dz, dx, dy;
68 Int_t idrotm[1899];
69 Float_t acc_max, the1, phi1, the2, phi2, the3, phi3;
70
71 Int_t *idtmed = gAlice->Idtmed();
72
73 //abs_d = 90.; // DEFINES DRIFT LENGTH
74 //z_nose = 102.;
75 //z_cone = 285.;
76 //theta1 = 24.; // 1. angle defining the front absorber
77 //theta2 = 5.; // 2. angle defining the front absorbe
78 acc_max = 9.; // ANGLE POLAIRE MAXIMUM
79 //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION
80 //abs_l = 503.;
81 //d_steel = 1.; // THICKNESS OF STEEL SUPPORT
82 //d_poly = 7.5;
83 //d_pb = 2.5;
84 //abs_cc = 315.; // DEFINES LENGTH OF CARBON
85 //abs_c = 358.;
86 //abs_s = 150.; // DEFINES W-SHIELD LENGTH
87 //abs_n = 80.; // START OF NOSE
88 //r_abs = 4.;
89 //r_pb = .1;
90 //epsilon = .01;
91 //theta_r = 3.;
92 //d_rear = 35.;
93 //theta_open = .75;
94
95 //z_l3 = 700.;
96 //zmag_in = 725.;
97 //zmag_out = 1225.;
98 //zfil_in = 1471.;
99 //zfil_out = 1591.;
100 //zcon_in = 1900.;
101 //zcon_out = 2e3;
102 //zcone_e = 859.0875;
103 //spec_l = 1800.;
104 //zplug_in = 1780.;
105 //zplug_out = 1900.;
106
107 // Chamber position
108 // CZ1=515.5
109 //cz1 = 511.;
110 //cz2 = 686.;
111 //cz3 = 971.;
112 //cz4 = 1245.;
113 //cz5 = 1445.;
114 //cz6 = 1610.;
115 //cz7 = 1710.;
116
117
118 // DIPOLE MAGNET
119
120 tpar[0] = 300.;
121 tpar[1] = 415.;
122 tpar[2] = 250.;
123 pMC->Gsvolu("DDIP", "BOX ", idtmed[1814], tpar, 3);
124
125 // COILS
126
127 // air - m.f.
128 cpar[0] = 210.;
129 cpar[1] = 263.;
130 cpar[2] = 83.2/2.;
131 cpar[3] = 120.;
132 cpar[4] = 240.;
133 pMC->Gsvolu("DC1 ", "TUBS", idtmed[1813], cpar, 5);
134 cpar[3] = -60.;
135 cpar[4] = 60.;
136 pMC->Gsvolu("DC2 ", "TUBS", idtmed[1813], cpar, 5);
137 // ... define regions for higher cuts
138 cpar[0] += 10.;
139 cpar[1] += -10.;
140 cpar[2] += -10.;
141 cpar[3] = 120.;
142 cpar[4] = 240.;
143 pMC->Gsvolu("DC3 ", "TUBS", idtmed[1833], cpar, 5);
144 pMC->Gspos("DC3 ", 1, "DC1 ", 0., 0., 0., 0, "ONLY");
145 cpar[3] = -60.;
146 cpar[4] = 60.;
147 pMC->Gsvolu("DC4 ", "TUBS", idtmed[1833], cpar, 5);
148 pMC->Gspos("DC4 ", 1, "DC2 ", 0., 0., 0., 0, "ONLY");
149 // ...
150 dz = 83.2/2. - 250.;
151 pMC->Gspos("DC1 ", 1, "DDIP", 0., 0., dz, 0, "ONLY");
152 pMC->Gspos("DC1 ", 2, "DDIP", 0., 0., -dz, 0, "ONLY");
153 pMC->Gspos("DC2 ", 1, "DDIP", 0., 0., dz, 0, "ONLY");
154 pMC->Gspos("DC2 ", 2, "DDIP", 0., 0., -dz, 0, "ONLY");
155 the1 = 180.;
156 phi1 = 0.;
157 the2 = 90.;
158 phi2 = 150.;
159 the3 = 90.;
160 phi3 = 60.;
161 AliMatrix(idrotm[1800], the1, phi1, the2, phi2, the3, phi3);
162 phi2 = 30.;
163 the3 = -90.;
164 phi3 = -60.;
165 AliMatrix(idrotm[1801], the1, phi1, the2, phi2, the3, phi3);
166 the1 = 0.;
167 phi1 = 0.;
168 the2 = 90.;
169 phi2 = 150.;
170 the3 = 90.;
171 phi3 = 60.;
172 AliMatrix(idrotm[1802], the1, phi1, the2, phi2, the3, phi3);
173 phi2 = 30.;
174 the3 = -90.;
175 phi3 = -60.;
176 AliMatrix(idrotm[1803], the1, phi1, the2, phi2, the3, phi3);
177 cpar[0] = 25.;
178 cpar[1] = 108.2;
179 cpar[2] = 26.5;
180 cpar[3] = 270.;
181 cpar[4] = 360.;
182 pMC->Gsvolu("DC11", "TUBS", idtmed[1813], cpar, 5);
183 // ... higher cuts
184 cpar[0] += 10.;
185 cpar[1] += -10.;
186 cpar[2] += -10.;
187 pMC->Gsvolu("DC21", "TUBS", idtmed[1833], cpar, 5);
188 pMC->Gspos("DC21", 1, "DC11", 0., 0., 0., 0, "ONLY");
189 // ...
190 dx = TMath::Sin(30*kDegrad) * -236.5;
191 dy = TMath::Cos(30*kDegrad) * -236.5;
192 dz = cpar[1] + 10. - 250.;
193 pMC->Gspos("DC11", 1, "DDIP", dx, dy, dz, idrotm[1800], "ONLY");
194 pMC->Gspos("DC11", 2, "DDIP", dx, dy, -dz, idrotm[1802], "ONLY");
195 pMC->Gspos("DC11", 3, "DDIP", -dx, dy, dz, idrotm[1801], "ONLY");
196 pMC->Gspos("DC11", 4, "DDIP", -dx, dy, -dz, idrotm[1803], "ONLY");
197 cpar[0] = 25.;
198 cpar[1] = 25.+83.2;
199 cpar[2] = 53./2.;
200 cpar[3] = 0.;
201 cpar[4] = 90.;
202 pMC->Gsvolu("DC12", "TUBS", idtmed[1813], cpar, 5);
203 // ... higher cuts
204 cpar[0] += 10.;
205 cpar[1] += -10.;
206 cpar[2] += -10.;
207 pMC->Gsvolu("DC22", "TUBS", idtmed[1833], cpar, 5);
208 pMC->Gspos("DC22", 1, "DC12", 0., 0., 0., 0, "ONLY");
209 // ...
210 dx = TMath::Sin(30*kDegrad) * -236.5;
211 dy = TMath::Cos(30*kDegrad) * 236.5;
212 dz = cpar[1] + 10. - 250.;
213 pMC->Gspos("DC12", 1, "DDIP", dx, dy, dz, idrotm[1801], "ONLY");
214 pMC->Gspos("DC12", 2, "DDIP", dx, dy, -dz, idrotm[1803], "ONLY");
215 pMC->Gspos("DC12", 3, "DDIP", -dx, dy, dz, idrotm[1800], "ONLY");
216 pMC->Gspos("DC12", 4, "DDIP", -dx, dy, -dz, idrotm[1802], "ONLY");
217 the1 = 90.;
218 phi1 = 60.;
219 the2 = 90.;
220 phi2 = 150.;
221 the3 = 0.;
222 phi3 = 0.;
223 AliMatrix(idrotm[1804], the1, phi1, the2, phi2, the3, phi3);
224 the1 = 90.;
225 phi1 = 120.;
226 the2 = 90.;
227 phi2 = 210.;
228 the3 = 0.;
229 phi3 = 0.;
230 AliMatrix(idrotm[1805], the1, phi1, the2, phi2, the3, phi3);
231 tpar[0] = 53./2.;
232 tpar[1] = 83.2/2.;
233 tpar[2] = 283.6/2.;
234 pMC->Gsvolu("DL1 ", "BOX ", idtmed[1813], tpar, 3);
235 // ... higher cuts
236 tpar[0] -= 10.;
237 tpar[1] -= 10.;
238 pMC->Gsvolu("DL2 ", "BOX ", idtmed[1833], tpar, 3);
239 pMC->Gspos("DL2 ", 1, "DL1 ", 0., 0., 0., 0, "ONLY");
240 // ...
241 dx = -60.5;
242 dy = -238.;
243 dz = 0.;
244 pMC->Gspos("DL1 ", 1, "DDIP", dx, dy, dz, idrotm[1804], "ONLY");
245 pMC->Gspos("DL1 ", 2, "DDIP", dx, -dy, dz, idrotm[1805], "ONLY");
246 pMC->Gspos("DL1 ", 3, "DDIP",-dx, dy, dz, idrotm[1805], "ONLY");
247 pMC->Gspos("DL1 ", 4, "DDIP",-dx, -dy, dz, idrotm[1804], "ONLY");
248
249 // YOKE
250
251 ypar[1] = 275.8;
252 ypar[2] = 5.;
253 ypar[3] = 156.8;
254 ypar[0] = ypar[1] - ypar[3] * 2. * TMath::Tan(acc_max * kDegrad);
255 pMC->Gsvolu("DY1 ", "TRD1", idtmed[1809], ypar, 4);
256 // iron -
257 dy = 283.5;
258 pMC->Gspos("DY1 ", 1, "DDIP", 0., dy, 0., 0, "ONLY");
259 pMC->Gspos("DY1 ", 2, "DDIP", 0., -dy, 0., 0, "ONLY");
260 ypar[2] = 60.;
261 pMC->Gsvolu("DY2 ", "TRD1", idtmed[1829], ypar, 4);
262 // iron -
263 dy = ypar[2] + 284.;
264 pMC->Gspos("DY2 ", 1, "DDIP", 0., dy, 0., 0, "ONLY");
265 pMC->Gspos("DY2 ", 2, "DDIP", 0., -dy, 0., 0, "ONLY");
266 the1 = 99.;
267 phi1 = 0.;
268 the2 = 90.;
269 phi2 = 90.;
270 the3 = 9.;
271 phi3 = 0.;
272 AliMatrix(idrotm[1806], the1, phi1, the2, phi2, the3, phi3);
273 the1 = 261.;
274 phi1 = 0.;
275 the3 = 171.;
276 AliMatrix(idrotm[1807], the1, phi1, the2, phi2, the3, phi3);
277 tpar[0] = 60.;
278 tpar[1] = 283.;
279 tpar[2] = 156.8;
280 pMC->Gsvolu("DYL ", "BOX ", idtmed[1814], tpar, 3);
281 tpar[0] = 5.;
282 tpar[1] = 73.;
283 pMC->Gsvolu("DY3 ", "BOX ", idtmed[1809], tpar, 3);
284 dx = tpar[0] - 60.;
285 dy = tpar[1] + 137.;
286 pMC->Gspos("DY3 ", 1, "DYL ", dx, dy, 0., 0, "ONLY");
287 pMC->Gspos("DY3 ", 2, "DYL ", dx, -dy, 0., 0, "ONLY");
288 tpar[0] = 55.;
289 pMC->Gsvolu("DY4 ", "BOX ", idtmed[1829], tpar, 3);
290 dx = dx + 5. + tpar[0];
291 pMC->Gspos("DY4 ", 1, "DYL ", dx, dy, 0., 0, "ONLY");
292 pMC->Gspos("DY4 ", 2, "DYL ", dx, -dy, 0., 0, "ONLY");
293 tpar[0] = 37.7;
294 tpar[1] = 137.;
295 pMC->Gsvolu("DY5 ", "BOX ", idtmed[1829], tpar, 3);
296 dx = 60. - tpar[0];
297 pMC->Gspos("DY5 ", 1, "DYL ", dx, 0., 0., 0, "ONLY");
298 tpar[0] = 5.;
299 pMC->Gsvolu("DY6 ", "BOX ", idtmed[1809], tpar, 3);
300 dx = dx - 37.7 - tpar[0];
301 pMC->Gspos("DY6 ", 1, "DYL ", dx, 0., 0., 0, "ONLY");
302 tpar[0] = 17.3;
303 tpar[1] = 5.;
304 pMC->Gsvolu("DY7 ", "BOX ", idtmed[1809], tpar, 3);
305 dx = tpar[0] - 60.;
306 dy = tpar[1] + 127.;
307 pMC->Gspos("DY7 ", 1, "DYL ", dx, dy, 0., 0, "ONLY");
308 pMC->Gspos("DY7 ", 2, "DYL ", dx, -dy, 0., 0, "ONLY");
309
310 dx = ypar[0] + ypar[3] * TMath::Tan(acc_max * kDegrad) - 60.;
311 pMC->Gspos("DYL ", 1, "DDIP", dx, 0., 0., idrotm[1806], "ONLY");
312 pMC->Gspos("DYL ", 2, "DDIP",-dx, 0., 0., idrotm[1807], "ONLY");
313 pMC->Gspos("DDIP", 1, "ALIC", 0., 0., 725.+250., 0, "MANY");
314 pMC->Gsatt("DDIP", "SEEN", 0);
315 pMC->Gsatt("DC21", "SEEN", 0);
316 pMC->Gsatt("DC22", "SEEN", 0);
317 pMC->Gsatt("DC3 ", "SEEN", 0);
318 pMC->Gsatt("DC4 ", "SEEN", 0);
319}
320
321//_____________________________________________________________________________
322void AliDIPOv2::DrawDetector()
323{
324 //
325 // Draw a shaded view of the muon absorber
326 //
327
328 AliMC* pMC = AliMC::GetMC();
329
330 // Set everything unseen
331 pMC->Gsatt("*", "seen", -1);
332 //
333 // Set ALIC mother transparent
334 pMC->Gsatt("ALIC","SEEN",0);
335 //
336 // Set the volumes visible
337 pMC->Gsatt("DDIP","seen",0);
338 pMC->Gsatt("DC1 ","seen",1);
339 pMC->Gsatt("DC2 ","seen",1);
340 pMC->Gsatt("DC3 ","seen",1);
341 pMC->Gsatt("DC4 ","seen",1);
342 pMC->Gsatt("DC11","seen",1);
343 pMC->Gsatt("DC21","seen",1);
344 pMC->Gsatt("DC12","seen",1);
345 pMC->Gsatt("DC22","seen",1);
346 pMC->Gsatt("DL1 ","seen",1);
347 pMC->Gsatt("DL2 ","seen",1);
348 pMC->Gsatt("DY1 ","seen",1);
349 pMC->Gsatt("DY2 ","seen",1);
350 pMC->Gsatt("DYL ","seen",1);
351 pMC->Gsatt("DY3 ","seen",1);
352 pMC->Gsatt("DY4 ","seen",1);
353 pMC->Gsatt("DY5 ","seen",1);
354 pMC->Gsatt("DY6 ","seen",1);
355 pMC->Gsatt("DY7 ","seen",1);
356 //
357 pMC->Gdopt("hide", "on");
358 pMC->Gdopt("shad", "on");
359 pMC->Gsatt("*", "fill", 7);
360 pMC->SetClipBox(".");
361 pMC->SetClipBox(".");
362 pMC->DefaultRange();
363 pMC->Gdraw("alic", 30, 30, 0, 17, 13.5, .019, .019);
364 pMC->Gdhead(1111, "Magnetic Dipole Version 2");
365 pMC->Gdman(16, 4, "MAN");
366}
367
368//_____________________________________________________________________________
369void AliDIPOv2::CreateMaterials()
370{
371 //
372 // Create Materials for Magnetic Dipole version 2
373 //
374
375 Int_t ISXFLD = gAlice->Field()->Integ();
376 Float_t SXMGMX = gAlice->Field()->Max();
377
378 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
379 Float_t zsteel[4] = { 26.,24.,28.,14. };
380 Float_t wsteel[4] = { .715,.18,.1,.005 };
381 Float_t acoil[3] = { 26.98,1.01,16. };
382 Float_t zcoil[3] = { 13.,1.,8. };
383 Float_t wcoil[3] = { .66,.226,.114 };
384
385 Float_t epsil, stmin, deemax, tmaxfd, stemax;
386
387 // --- Define the various materials for GEANT ---
388 // Aluminum
389 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
390 AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
391 AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
392
393 // Iron
394 AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
395 AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
396 AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
397
398 // Air
399 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
400 AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
401 AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
402
403 // Vacuum
404 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
405 AliMaterial(36, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
406 AliMaterial(56, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
407
408 // stainless Steel
409 AliMixture(19, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
410 AliMixture(39, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
411 AliMixture(59, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
412
413 // Coil
414 AliMixture(14, "Al$", acoil, zcoil, 2.122, 3, wcoil);
415 AliMixture(34, "Al$", acoil, zcoil, 2.122, 3, wcoil);
416 AliMixture(54, "Al$", acoil, zcoil, 2.122, 3, wcoil);
417
418 // ****************
419 // Defines tracking media parameters.
420 // Les valeurs sont commentees pour laisser le defaut
421 // a GEANT (version 3-21, page CONS200), f.m.
422 epsil = .001; // Tracking precision,
423 stemax = -1.; // Maximum displacement for multiple scat
424 tmaxfd = -20.; // Maximum angle due to field deflection
425 deemax = -.3; // Maximum fractional energy loss, DLS
426 stmin = -.8;
427 // ***************
428
429 // Aluminum
430 AliMedium(1809, "ALU_C0 ", 9, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
431 AliMedium(1829, "ALU_C1 ", 29, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
432 AliMedium(1849, "ALU_C2 ", 49, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
433
434 // Iron
435 AliMedium(1810, "FE_C0 ", 10, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
436 AliMedium(1830, "FE_C1 ", 30, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
437 AliMedium(1850, "FE_C2 ", 50, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
438
439 // Air
440 AliMedium(1815, "AIR_C0 ", 15, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
441 AliMedium(1835, "AIR_C1 ", 35, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
442 AliMedium(1855, "AIR_C2 ", 55, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
443
444 // Vacuum
445 AliMedium(1816, "VA_C0 ", 16, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
446 AliMedium(1836, "VA_C1 ", 36, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
447 AliMedium(1856, "VA_C2 ", 56, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
448
449 // Steel
450 AliMedium(1819, "ST_C0 ", 19, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
451 AliMedium(1839, "ST_C1 ", 39, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
452 AliMedium(1859, "ST_C3 ", 59, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
453
454 // Coil
455 AliMedium(1814, "Coil_C1 ", 14, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
456 AliMedium(1834, "Coil_C2 ", 34, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
457 AliMedium(1854, "Coil_C3 ", 54, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
458}
459
460//_____________________________________________________________________________
461void AliDIPOv2::StepManager()
462{
463 //
464 // Called at each step in the Dipole Magnet
465 //
466}