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 1.10 2002/10/17 16:14:05 hristov
19 MAG geometry with resolved MANY (I.Hrivnacova)
21 Revision 1.9 2001/05/16 14:57:22 alibrary
22 New files for folders and Stack
24 Revision 1.8 2000/10/02 21:28:15 fca
25 Removal of useless dependecies via forward declarations
27 Revision 1.7 2000/06/11 12:35:56 morsch
28 Coding rule violations corrected
30 Revision 1.6 1999/09/29 09:24:30 fca
31 Introduction of the Copyright and cvs Log
35 ///////////////////////////////////////////////////////////////////////////////
41 <img src="picts/AliMAGClass.gif">
44 <font size=+2 color=red>
45 <p>The responsible person for this module is
46 <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
52 ///////////////////////////////////////////////////////////////////////////////
61 //_____________________________________________________________________________
65 // Default constructor for L3 magnet
69 //_____________________________________________________________________________
70 AliMAG::AliMAG(const char *name, const char *title)
71 : AliModule(name,title)
74 // Standard constructor for L3 magnet
78 <img src="picts/aliMAG.gif">
87 //_____________________________________________________________________________
88 void AliMAG::CreateGeometry()
91 // Create geometry for L3 magnet
95 <img src="picts/mag.gif">
100 <img src="picts/tree_mag.gif">
104 Int_t *idtmed = fIdtmed->GetArray()-299;
110 // ANGLE POLAIRE MAXIMUM
124 gMC->Gsvolu("L3MO", "PGON", idtmed[334], par, 10);
125 gMC->Gspos("L3MO", 1, "ALIC", 0., -30., 0., 0, "ONLY");
133 gMC->Gsvolu("L3CO", "PGON", idtmed[328], par, 10);
134 gMC->Gspos("L3CO", 1, "L3MO", 0., 0., 0., 0, "ONLY");
140 gMC->Gsvolu("L3C1", "PGON", idtmed[308], par, 10);
141 gMC->Gspos("L3C1", 1, "L3MO", 0., 0., 0., 0, "ONLY");
149 gMC->Gsvolu("L3YO", "PGON", idtmed[329], par, 10);
150 gMC->Gspos("L3YO", 1, "L3MO", 0., 0., 0., 0, "ONLY");
152 // Define the return yoke of L3 (DOOR)
160 gMC->Gsvolu("L3DO", "PGON", idtmed[334], par, 10);
161 gMC->Gsvolu("L3DX", "PGON", idtmed[334], par, 10);
169 gMC->Gsvolu("L3FR", "PGON", idtmed[329], par, 10);
170 gMC->Gsvolu("L3FX", "PGON", idtmed[329], par, 10);
176 gMC->Gsvolu("L3IR", "PGON", idtmed[309], par, 10);
177 gMC->Gsvolu("L3IX", "PGON", idtmed[309], par, 10);
193 dpar[12] = dpar[6] + 50.;
194 gMC->Gsvolu("L3O1", "PGON", idtmed[314], dpar, 13);
195 gMC->Gsvolu("L3O3", "PGON", idtmed[314], dpar, 13);
202 gMC->Gsvolu("L3O2", "PGON", idtmed[314], par, 10);
203 gMC->Gsvolu("L3O4", "PGON", idtmed[314], par, 10);
205 // THE DOOR OPENING HAS TO BE PLACED WITH 'MANY' SINCE THE REGION
206 // WILL CONTAIN A MUON CHAMBER, BEAM PIPE AND BEAM SHIELD
207 // PLACED WITH 'ONLY'.
209 AliMatrix(idrotm[300], 90., 0., 90., 90., 180., 0.);
211 gMC->Gspos("L3DO", 1, "ALIC", 0., -30., 0., 0, "MANY");
212 gMC->Gspos("L3FR", 1, "L3DO", 0., 0., 0., 0, "MANY");
213 gMC->Gspos("L3IR", 1, "L3DO", 0., 0., 0., 0, "MANY");
215 gMC->Gspos("L3DX", 1, "ALIC", 0., -30., 0., idrotm[300], "MANY");
216 gMC->Gspos("L3FX", 1, "L3DX", 0., 0., 0., 0, "MANY");
217 gMC->Gspos("L3IX", 1, "L3DX", 0., 0., 0., 0, "MANY");
219 if(strcmp(gMC->GetName(),"TGeant3")) {
221 gMC->Gspos("L3O1", 1, "L3FR", 0., 30., 0., 0, "MANY");
222 gMC->Gspos("L3O2", 1, "L3IR", 0., 30., 0., 0, "MANY");
223 gMC->Gspos("L3O3", 1, "L3FX", 0., 30., 0., 0, "MANY");
224 gMC->Gspos("L3O4", 1, "L3IX", 0., 30., 0., 0, "MANY");
228 gMC->Gspos("L3O1", 1, "ALIC", 0., 0., 0., 0, "MANY");
229 gMC->Gspos("L3O2", 1, "ALIC", 0., 0., 0., 0, "MANY");
230 gMC->Gsbool("L3O1", "L3DO");
231 gMC->Gsbool("L3O2", "L3DO");
233 gMC->Gspos("L3O3", 1, "ALIC", 0., 0., 0., idrotm[300], "MANY");
234 gMC->Gspos("L3O4", 1, "ALIC", 0., 0., 0., idrotm[300], "MANY");
235 gMC->Gsbool("L3O3", "L3DX");
236 gMC->Gsbool("L3O4", "L3DX");
240 //_____________________________________________________________________________
241 void AliMAG::CreateMaterials()
244 // Create materials for L3 magnet
247 Int_t isxfld = gAlice->Field()->Integ();
248 Float_t sxmgmx = gAlice->Field()->Max();
250 Float_t epsil, stmin, deemax, tmaxfd, stemax;
251 // --- Define the various materials for GEANT ---
254 AliMaterial(9, "Al$", 26.98, 13., 2.7, 8.9, 37.2);
255 AliMaterial(29, "Al$", 26.98, 13., 2.7, 8.9, 37.2);
258 AliMaterial(10, "Fe$", 55.85, 26., 7.87, 1.76, 17.1);
259 AliMaterial(30, "Fe$", 55.85, 26., 7.87, 1.76, 17.1);
262 AliMaterial(15, "Air$", 14.61, 7.3, .001205, 30420., 67500);
263 AliMaterial(35, "Air$", 14.61, 7.3, .001205, 30420., 67500);
266 // Defines tracking media parameters.
267 // Les valeurs sont commentees pour laisser le defaut
268 // a GEANT (version 3-21, page CONS200), f.m.
269 epsil = .001; // Tracking precision,
270 stemax = -1.; // Maximum displacement for multiple scat
271 tmaxfd = -20.; // Maximum angle due to field deflection
272 deemax = -.3; // Maximum fractional energy loss, DLS
278 AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
279 AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
283 AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
284 AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
288 AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
289 AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
292 //_____________________________________________________________________________
293 void AliMAG::DrawModule()
296 // Draw a shaded view of the L3 magnet
300 //_____________________________________________________________________________
304 // Initialise L3 magnet after it has been built
308 printf("\n%s: ",ClassName());
309 for(i=0;i<35;i++) printf("*");
310 printf(" MAG_INIT ");
311 for(i=0;i<35;i++) printf("*");
312 printf("\n%s: ",ClassName());
314 // Here the MAG initialisation code (if any!)
315 for(i=0;i<80;i++) printf("*");