1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 Revision 1.12 2002/11/01 10:59:49 hristov
19 Correcting geometry (corresponds to version 1.9)
21 Revision 1.11 2002/10/17 16:33:07 hristov
22 Corrected check of the MC type
24 Revision 1.10 2002/10/17 16:14:05 hristov
25 MAG geometry with resolved MANY (I.Hrivnacova)
27 Revision 1.9 2001/05/16 14:57:22 alibrary
28 New files for folders and Stack
30 Revision 1.8 2000/10/02 21:28:15 fca
31 Removal of useless dependecies via forward declarations
33 Revision 1.7 2000/06/11 12:35:56 morsch
34 Coding rule violations corrected
36 Revision 1.6 1999/09/29 09:24:30 fca
37 Introduction of the Copyright and cvs Log
41 ///////////////////////////////////////////////////////////////////////////////
47 <img src="picts/AliMAGClass.gif">
50 <font size=+2 color=red>
51 <p>The responsible person for this module is
52 <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
58 ///////////////////////////////////////////////////////////////////////////////
67 //_____________________________________________________________________________
71 // Default constructor for L3 magnet
75 //_____________________________________________________________________________
76 AliMAG::AliMAG(const char *name, const char *title)
77 : AliModule(name,title)
80 // Standard constructor for L3 magnet
84 <img src="picts/aliMAG.gif">
93 //_____________________________________________________________________________
94 void AliMAG::CreateGeometry()
97 // Create geometry for L3 magnet
101 <img src="picts/mag.gif">
106 <img src="picts/tree_mag.gif">
110 Int_t *idtmed = fIdtmed->GetArray()-299;
116 // ANGLE POLAIRE MAXIMUM
130 gMC->Gsvolu("L3MO", "PGON", idtmed[334], par, 10);
131 gMC->Gspos("L3MO", 1, "ALIC", 0., -30., 0., 0, "ONLY");
139 gMC->Gsvolu("L3CO", "PGON", idtmed[328], par, 10);
140 gMC->Gspos("L3CO", 1, "L3MO", 0., 0., 0., 0, "ONLY");
146 gMC->Gsvolu("L3C1", "PGON", idtmed[308], par, 10);
147 gMC->Gspos("L3C1", 1, "L3MO", 0., 0., 0., 0, "ONLY");
155 gMC->Gsvolu("L3YO", "PGON", idtmed[329], par, 10);
156 gMC->Gspos("L3YO", 1, "L3MO", 0., 0., 0., 0, "ONLY");
158 // Define the return yoke of L3 (DOOR)
166 gMC->Gsvolu("L3DO", "PGON", idtmed[334], par, 10);
167 gMC->Gsvolu("L3DX", "PGON", idtmed[334], par, 10);
175 gMC->Gsvolu("L3FR", "PGON", idtmed[329], par, 10);
176 gMC->Gsvolu("L3FX", "PGON", idtmed[329], par, 10);
182 gMC->Gsvolu("L3IR", "PGON", idtmed[309], par, 10);
183 gMC->Gsvolu("L3IX", "PGON", idtmed[309], par, 10);
199 dpar[12] = dpar[6] + 50.;
200 gMC->Gsvolu("L3O1", "PGON", idtmed[314], dpar, 13);
201 gMC->Gsvolu("L3O3", "PGON", idtmed[314], dpar, 13);
208 gMC->Gsvolu("L3O2", "PGON", idtmed[314], par, 10);
209 gMC->Gsvolu("L3O4", "PGON", idtmed[314], par, 10);
211 // THE DOOR OPENING HAS TO BE PLACED WITH 'MANY' SINCE THE REGION
212 // WILL CONTAIN A MUON CHAMBER, BEAM PIPE AND BEAM SHIELD
213 // PLACED WITH 'ONLY'.
215 AliMatrix(idrotm[300], 90., 0., 90., 90., 180., 0.);
217 gMC->Gspos("L3DO", 1, "ALIC", 0., -30., 0., 0, "MANY");
218 gMC->Gspos("L3FR", 1, "L3DO", 0., 0., 0., 0, "MANY");
219 gMC->Gspos("L3IR", 1, "L3DO", 0., 0., 0., 0, "MANY");
221 gMC->Gspos("L3DX", 1, "ALIC", 0., -30., 0., idrotm[300], "MANY");
222 gMC->Gspos("L3FX", 1, "L3DX", 0., 0., 0., 0, "MANY");
223 gMC->Gspos("L3IX", 1, "L3DX", 0., 0., 0., 0, "MANY");
225 if(!strcmp(gMC->GetName(),"TGeant3")) {
227 gMC->Gspos("L3O1", 1, "L3FR", 0., 30., 0., 0, "MANY");
228 gMC->Gspos("L3O2", 1, "L3IR", 0., 30., 0., 0, "MANY");
229 gMC->Gspos("L3O3", 1, "L3FX", 0., 30., 0., 0, "MANY");
230 gMC->Gspos("L3O4", 1, "L3IX", 0., 30., 0., 0, "MANY");
234 gMC->Gspos("L3O1", 1, "ALIC", 0., 0., 0., 0, "MANY");
235 gMC->Gspos("L3O2", 1, "ALIC", 0., 0., 0., 0, "MANY");
236 gMC->Gsbool("L3O1", "L3DO");
237 gMC->Gsbool("L3O2", "L3DO");
239 gMC->Gspos("L3O3", 1, "ALIC", 0., 0., 0., idrotm[300], "MANY");
240 gMC->Gspos("L3O4", 1, "ALIC", 0., 0., 0., idrotm[300], "MANY");
241 gMC->Gsbool("L3O3", "L3DX");
242 gMC->Gsbool("L3O4", "L3DX");
246 //_____________________________________________________________________________
247 void AliMAG::CreateMaterials()
250 // Create materials for L3 magnet
253 Int_t isxfld = gAlice->Field()->Integ();
254 Float_t sxmgmx = gAlice->Field()->Max();
256 Float_t epsil, stmin, deemax, tmaxfd, stemax;
257 // --- Define the various materials for GEANT ---
260 AliMaterial(9, "Al$", 26.98, 13., 2.7, 8.9, 37.2);
261 AliMaterial(29, "Al$", 26.98, 13., 2.7, 8.9, 37.2);
264 AliMaterial(10, "Fe$", 55.85, 26., 7.87, 1.76, 17.1);
265 AliMaterial(30, "Fe$", 55.85, 26., 7.87, 1.76, 17.1);
268 AliMaterial(15, "Air$", 14.61, 7.3, .001205, 30420., 67500);
269 AliMaterial(35, "Air$", 14.61, 7.3, .001205, 30420., 67500);
272 // Defines tracking media parameters.
273 // Les valeurs sont commentees pour laisser le defaut
274 // a GEANT (version 3-21, page CONS200), f.m.
275 epsil = .001; // Tracking precision,
276 stemax = -1.; // Maximum displacement for multiple scat
277 tmaxfd = -20.; // Maximum angle due to field deflection
278 deemax = -.3; // Maximum fractional energy loss, DLS
284 AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
285 AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
289 AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
290 AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
294 AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
295 AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
298 //_____________________________________________________________________________
299 void AliMAG::DrawModule()
302 // Draw a shaded view of the L3 magnet
306 //_____________________________________________________________________________
310 // Initialise L3 magnet after it has been built
314 printf("\n%s: ",ClassName());
315 for(i=0;i<35;i++) printf("*");
316 printf(" MAG_INIT ");
317 for(i=0;i<35;i++) printf("*");
318 printf("\n%s: ",ClassName());
320 // Here the MAG initialisation code (if any!)
321 for(i=0;i<80;i++) printf("*");