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 ///////////////////////////////////////////////////////////////////////////////
20 // Cosmic Rays ALICE Trigger //
21 // This class contains the basic functions for the Cosmic Ray ALICE //
22 // detector. Functions specific to one particular geometry are //
23 // contained in the derived classes //
27 <img src="picts/AliACORDEClass.gif">
29 <p>The responsible person for this module is
30 <a href="mailto:Enrique.Gamez.Flores@cern.ch">Enrique Gamez Flores</a>.
38 ///////////////////////////////////////////////////////////////////////////////
40 #include "AliACORDE.h"
43 #include <TVirtualMC.h>
49 //#include "AliACORDEhit.h"
50 #include "AliACORDEModule.h"
54 //_____________________________________________________________________________
55 AliACORDE::AliACORDE()
60 // Default constructor
64 //_____________________________________________________________________________
65 AliACORDE::AliACORDE(const char *name, const char *title)
66 : AliDetector(name, title),
70 // Standard constructor
72 //fHits = new TClonesArray("AliACORDEhit", 400);
73 //gAlice->GetMCApp()->AddHitList(fHits);
76 //_____________________________________________________________________________
77 AliACORDE::~AliACORDE()
82 if ( fModule ) { delete fModule; fModule = 0; }
85 //_____________________________________________________________________________
86 void AliACORDE::CreateMaterials()
88 // Magnatic field inside the pit
89 Int_t isxfld = gAlice->Field()->Integ();
90 Float_t sxmgmx = gAlice->Field()->Max();
92 //Magnetic field above the Magnet.
93 Int_t xfield = 0; // no Magnetic field.
95 Float_t xepsil = 0.1; // Tracking precission in cm. obove the pit
97 // --- Define the various materials for GEANT ---
98 Float_t epsil, stmin, tmaxfd, deemax, stemax;
101 AliMaterial(9, "ALUMINIUM0$", 26.98, 13., 2.7, 8.9, 37.2);
102 AliMaterial(29, "ALUMINIUM1$", 26.98, 13., 2.7, 8.9, 37.2);
103 AliMaterial(49, "ALUMINIUM2$", 26.98, 13., 2.7, 8.9, 37.2);
106 AliMaterial(10, "IRON0$ ", 55.85, 26., 7.87, 1.76, 17.1);
107 AliMaterial(30, "IRON1$ ", 55.85, 26., 7.87, 1.76, 17.1);
108 AliMaterial(50, "IRON2$ ", 55.85, 26., 7.87, 1.76, 17.1);
111 AliMaterial(15, "AIR0$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
112 AliMaterial(35, "AIR1$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
113 AliMaterial(55, "AIR2$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
114 AliMaterial(75, "AIR3$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
115 AliMaterial(95, "AIR4$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
118 // Scintillator material polystyrene
119 Float_t aP[2] = {12.011, 1.00794};
120 Float_t zP[2] = {6.0, 1.0};
121 Float_t wP[2] = {1.0, 1.0};
123 AliMixture(13, "Polystyrene$", aP, zP, dP, -2, wP);
124 // Subalpine Molasse over the ALICE hall.
125 Float_t aMolasse[10] = { 1., 12.01, 15.994, 22.99, 24.305, 26.98, 28.086, 39.1, 40.08, 55.85 };
126 Float_t zMolasse[10] = {1., 6., 8., 11., 12., 13., 14., 19., 20., 26.};
127 Float_t wMolasse[10] = {0.008, 0.043, 0.485, 0.007, 0.042, 0.037, 0.215, 0.023, 0.1, 0.04};
128 Float_t dMolasse = 2.40;
129 AliMixture(24, "Molasse$", aMolasse, zMolasse, dMolasse, 10, wMolasse);
132 // Defines tracking media parameters.
133 // Les valeurs sont commentees pour laisser le defaut
134 // a GEANT (version 3-21, page CONS200), f.m.
135 epsil = .001; // Tracking precision, Inside the pit
136 stemax = -1.; // Maximum displacement for multiple scattering
137 tmaxfd = -20.; // Maximum angle due to field deflection
138 deemax = -.3; // Maximum fractional energy loss, DLS
142 Float_t atmaxfd = 10.;
143 Float_t adeemax = -0.1;
144 Float_t aepsil = 0.1;
145 Float_t astmin = -10.;
149 AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
150 AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
151 AliMedium(49, "ALU_C2 ", 49, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
154 AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
155 AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
156 AliMedium(50, "FE_C2 ", 50, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
159 AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
160 AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
161 AliMedium(55, "AIR_C2 ", 55, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
162 AliMedium(75, "AIR_C4 ", 75, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
163 AliMedium(95, "AIR_C5 ", 95, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
167 // The scintillator of the CPV made of Polystyrene
168 // scintillator -> idtmed[1112]
169 AliMedium(12 , "CPV scint.0 ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
170 AliMedium(13 , "CPV scint.1 ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
171 AliMedium(14 , "CPV scint.2 ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
173 // Molasse -> idtmed[1123]
174 AliMedium(24 , "Molasse ", 24, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin);
176 // Concrete, in case if we need to put hte shafts by ourselves.
178 Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,28.086,39.1,40.08,55.85 };
179 Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. };
180 Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,.337021,.013,.044,.014 };
182 AliMixture(17, "CONCRETE$", aconc, zconc, 2.35, 10, wconc);
184 AliMedium(17, "CC_C0 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
185 AliMedium(27, "CC_C1 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // MX24
186 AliMedium(37, "CC_C2 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // PM25
187 AliMedium(47, "CC_C3 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // PGC2
191 //_____________________________________________________________________________
192 void AliACORDE::SetTreeAddress()
197 sprintf(branchname,"%s",GetName());
198 // Branch address for hit tree
199 TTree *treeH = fLoader->TreeH();
201 branch = treeH->GetBranch(branchname);
202 if (branch) branch->SetAddress(&fHits);
206 //_____________________________________________________________________________
207 void AliACORDE::MakeBranch(Option_t* opt)
210 // Initializes the branches of the ACORDE inside the trees written
213 const char* oH = strstr(opt, "H");
214 if ( fLoader->TreeH() && oH && (fHits == 0x0) ) {
215 fHits = new TClonesArray("AliACORDEhit", 1000);
218 AliDetector::MakeBranch(opt);