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 1.8 2000/10/02 21:28:15 fca
19 Removal of useless dependecies via forward declarations
21 Revision 1.7 2000/06/11 12:33:34 morsch
22 Coding rule violations corrected
24 Revision 1.6 1999/09/29 09:24:30 fca
25 Introduction of the Copyright and cvs Log
29 ///////////////////////////////////////////////////////////////////////////////
31 // Magnetic Dipole version 1 //
35 <img src="picts/AliDIPOv1Class.gif">
38 <font size=+2 color=red>
39 <p>The responsible person for this module is
40 <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
47 ///////////////////////////////////////////////////////////////////////////////
49 #include "AliDIPOv1.h"
55 //_____________________________________________________________________________
56 AliDIPOv1::AliDIPOv1()
59 // Default constructor for the magnetic dipole version 1
63 //_____________________________________________________________________________
64 AliDIPOv1::AliDIPOv1(const char *name, const char *title)
68 // Standard constructor for magnetic dipole version 1
75 //_____________________________________________________________________________
76 void AliDIPOv1::CreateGeometry()
79 // Creation of the geometry of the magnetic DIPOLE version 1
83 <img src="picts/AliDIPOv1Tree.gif">
88 <img src="picts/AliDIPOv1.gif">
94 Int_t *idtmed = fIdtmed->GetArray()-1799;
96 //abs_d = 90.; // DEFINES DRIFT LENGTH
99 //theta1 = 24.; // 1. angle defining the front absorber
100 //theta2 = 5.; // 2. angle defining the front absorbe
101 //acc_max = 9.; // ANGLE POLAIRE MAXIMUM
102 //acc_min = 2.; // ANGLE POLAIRE MINIMUM DE DETECTION
104 //d_steel = 1.; // THICKNESS OF STEEL SUPPORT
107 //abs_cc = 315.; // DEFINES LENGTH OF CARBON
109 //abs_s = 150.; // DEFINES W-SHIELD LENGTH
110 //abs_n = 80.; // START OF NOSE
125 //zcone_e = 859.0875;
145 gMC->Gsvolu("DDIP", "TUBE", idtmed[1801], par, 3);
154 gMC->Gsvolu("DIPC", "CONE", idtmed[1810], par, 5);
155 gMC->Gspos("DIPC", 1, "DDIP", 0., 0., 0., 0, "ONLY");
161 gMC->Gsvolu("DIIC", "CONE", idtmed[1807], par, 5);
162 gMC->Gspos("DIIC", 1, "DDIP", 0., 0., 0., 0, "ONLY");
171 gMC->Gsvolu("DIPY", "CONE", idtmed[1834], par, 5);
172 gMC->Gspos("DIPY", 1, "DDIP", 0., 0., 0., 0, "ONLY");
173 gMC->Gspos("DDIP", 1, "ALIC", 0., 0., 725.+250, 0, "ONLY");
176 //_____________________________________________________________________________
177 void AliDIPOv1::DrawModule()
180 // Draw a shaded view of the muon absorber
183 // Set everything unseen
184 gMC->Gsatt("*", "seen", -1);
186 // Set ALIC mother transparent
187 gMC->Gsatt("ALIC","SEEN",0);
189 // Set the volumes visible
190 gMC->Gsatt("DDIP","seen",1);
191 gMC->Gsatt("DIPC","seen",1);
192 gMC->Gsatt("DIIC","seen",1);
193 gMC->Gsatt("DIPY","seen",1);
195 gMC->Gdopt("hide", "on");
196 gMC->Gdopt("shad", "on");
197 gMC->Gsatt("*", "fill", 7);
198 gMC->SetClipBox(".");
199 gMC->SetClipBox(".");
201 gMC->Gdraw("alic", 30, 30, 0, 17, 13.5, .019, .019);
202 gMC->Gdhead(1111, "Magnetic Dipole Version 1");
203 gMC->Gdman(16, 4, "MAN");
206 //_____________________________________________________________________________
207 void AliDIPOv1::CreateMaterials()
210 // Create Materials for Dipole Magnet version 1
213 Int_t isxfld = gAlice->Field()->Integ();
214 Float_t sxmgmx = gAlice->Field()->Max();
216 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
217 Float_t zsteel[4] = { 26.,24.,28.,14. };
218 Float_t wsteel[4] = { .715,.18,.1,.005 };
219 Float_t epsil, stmin, deemax, tmaxfd, stemax;
224 // --- Define the various materials for GEANT ---
225 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
226 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500);
227 AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 0, 17.1);
228 AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
229 AliMixture(24, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
232 // Defines tracking media parameters.
233 // Les valeurs sont commentees pour laisser le defaut
234 // a GEANT (version 3-21, page CONS200), f.m.
235 epsil = .001; // Tracking precision,
236 stemax = -1.; // Maximum displacement for multiple scat
237 tmaxfd = -20.; // Maximum angle due to field deflection
238 deemax = -.3; // Maximum fractional energy loss, DLS
244 AliMedium(1, "AIR_DI_US ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
245 AliMedium(2, "AIR_DI_US ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
246 AliMedium(3, "AIR_L3_US ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
250 AliMedium(8, "ALU_DI_US ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
251 AliMedium(11, "ALU_DI_SH ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
255 AliMedium(31, "FE_NF_US ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
256 AliMedium(32, "FE_DI_US ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
257 AliMedium(33, "FE_L3_US ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
258 AliMedium(34, "FE_NF_SH ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
259 AliMedium(35, "FE_DI_SH ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
260 AliMedium(36, "FE_L3_SH ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
264 AliMedium(37, "VA_NF_US ", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
265 AliMedium(38, "VA_DI_US ", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
266 AliMedium(39, "VA_L3_US ", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
270 AliMedium(75, "ST_L3_US ", 24, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);