Angular distribution generation, corrected
[u/mrichter/AliRoot.git] / CRT / AliCRT.cxx
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fb7a1f55 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
88cb7938 16/* $Id$ */
fb7a1f55 17
18///////////////////////////////////////////////////////////////////////////////
19// //
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 //
24//
25// Begin_Html
26/*
27<img src="picts/AliCRTClass.gif">
28</pre>
29<p>The responsible person for this module is
30<a href="mailto:Enrique.Gamez.Flores@cern.ch">Enrique Gamez Flores</a>.
31</font>
32<pre>
33*/
34//End_Html
35//
36//
37// //
38///////////////////////////////////////////////////////////////////////////////
39
fddb5247 40#include "AliCRT.h"
41
fb7a1f55 42#include <TTree.h>
fb7a1f55 43
88cb7938 44#include "AliRun.h"
387cc25e 45#include "AliMagF.h"
46
fddb5247 47#include "AliCRTModule.h"
387cc25e 48
fb7a1f55 49ClassImp(AliCRT)
50
fb7a1f55 51//_____________________________________________________________________________
52AliCRT::AliCRT()
fddb5247 53 : AliDetector(),
54 fModule(0)
fb7a1f55 55{
56 //
387cc25e 57 // Default constructor
fb7a1f55 58 //
fb7a1f55 59}
60
61//_____________________________________________________________________________
62AliCRT::AliCRT(const char *name, const char *title)
fddb5247 63 : AliDetector(name, title),
64 fModule(0)
fb7a1f55 65{
66 //
387cc25e 67 // Standard constructor
fb7a1f55 68 //
fb7a1f55 69}
70
d2293f45 71//_____________________________________________________________________________
72AliCRT::AliCRT(const AliCRT& crt)
fddb5247 73 : AliDetector(crt),
74 fModule(crt.fModule)
d2293f45 75{
76 //
387cc25e 77 // Copy constructor
d2293f45 78 //
79 crt.Copy(*this);
d2293f45 80}
81
fb7a1f55 82//_____________________________________________________________________________
83AliCRT::~AliCRT()
84{
85 //
387cc25e 86 // Default destructor
fb7a1f55 87 //
fddb5247 88 if ( fModule ) { delete fModule; fModule = 0; }
fb7a1f55 89}
90
91//_____________________________________________________________________________
387cc25e 92AliCRT& AliCRT::operator=(const AliCRT& crt)
fb7a1f55 93{
d2293f45 94 //
387cc25e 95 // Asingment operator.
fb7a1f55 96 //
387cc25e 97 crt.Copy(*this);
98 return *this;
fb7a1f55 99}
100
101//_____________________________________________________________________________
102void AliCRT::CreateMaterials()
103{
104 // Magnatic field inside the pit
105 Int_t isxfld = gAlice->Field()->Integ();
106 Float_t sxmgmx = gAlice->Field()->Max();
107
108 //Magnetic field above the Magnet.
109 Int_t xfield = 0; // no Magnetic field.
110 Float_t xfieldm = 0;
111 Float_t xepsil = 0.1; // Tracking precission in cm. obove the pit
112
113 // --- Define the various materials for GEANT ---
fb7a1f55 114 Float_t epsil, stmin, tmaxfd, deemax, stemax;
115 //
116 // Aluminum
117 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
118 AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
119 AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
120 //
121 // Iron
122 AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
123 AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
124 AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
125 //
126 // Air
127 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
128 AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
129 AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
d2293f45 130 AliMaterial(75, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
131 AliMaterial(95, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
132
fb7a1f55 133
134 // Scintillator material polystyrene
135 Float_t aP[2] = {12.011, 1.00794};
136 Float_t zP[2] = {6.0, 1.0};
137 Float_t wP[2] = {1.0, 1.0};
138 Float_t dP = 1.032;
2c3b33cd 139 AliMixture(13, "Polystyrene$", aP, zP, dP, -2, wP);
c8a19f01 140 // Subalpine Molasse over the ALICE hall.
2c3b33cd 141 Float_t aMolasse[10] = { 1., 12.01, 15.994, 22.99, 24.305, 26.98, 28.086, 39.1, 40.08, 55.85 };
c8a19f01 142 Float_t zMolasse[10] = {1., 6., 8., 11., 12., 13., 14., 19., 20., 26.};
2c3b33cd 143 Float_t wMolasse[10] = {0.008, 0.043, 0.485, 0.007, 0.042, 0.037, 0.215, 0.023, 0.1, 0.04};
c8a19f01 144 Float_t dMolasse = 2.40;
2c3b33cd 145 AliMixture(24, "Molasse$", aMolasse, zMolasse, dMolasse, 10, wMolasse);
387cc25e 146
fb7a1f55 147 // ****************
148 // Defines tracking media parameters.
149 // Les valeurs sont commentees pour laisser le defaut
150 // a GEANT (version 3-21, page CONS200), f.m.
151 epsil = .001; // Tracking precision, Inside the pit
152 stemax = -1.; // Maximum displacement for multiple scattering
153 tmaxfd = -20.; // Maximum angle due to field deflection
154 deemax = -.3; // Maximum fractional energy loss, DLS
155 stmin = -.8;
156 // ***************
157
d2293f45 158 Float_t atmaxfd = 10.;
159 Float_t adeemax = -0.1;
160 Float_t aepsil = 0.1;
161 Float_t astmin = -10.;
162
fb7a1f55 163 //
164 // Aluminum
165 AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
166 AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
167 AliMedium(49, "ALU_C2 ", 49, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
168 //
169 // Iron
170 AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
171 AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
172 AliMedium(50, "FE_C2 ", 50, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
173 //
174 // Air
d2293f45 175 AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
176 AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
177 AliMedium(55, "AIR_C2 ", 55, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
178 AliMedium(75, "AIR_C4 ", 75, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
387cc25e 179 AliMedium(95, "AIR_C5 ", 95, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin);
d2293f45 180
fb7a1f55 181
182
183 // The scintillator of the CPV made of Polystyrene
2c3b33cd 184 // scintillator -> idtmed[1112]
387cc25e 185 AliMedium(12 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
2c3b33cd 186 AliMedium(13 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
387cc25e 187 AliMedium(14 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
188
2c3b33cd 189 // Molasse -> idtmed[1123]
190 AliMedium(24 , "Molasse ", 24, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin);
fb7a1f55 191
d2293f45 192 // Concrete, in case if we need to put hte shafts by ourselves.
fb7a1f55 193
d2293f45 194 Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,28.086,39.1,40.08,55.85 };
195 Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. };
196 Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,.337021,.013,.044,.014 };
387cc25e 197
d2293f45 198 AliMixture(17, "CONCRETE$", aconc, zconc, 2.35, 10, wconc);
199 // Concrete
200 AliMedium(17, "CC_C0 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
387cc25e 201 AliMedium(27, "CC_C1 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // MX24
202 AliMedium(37, "CC_C2 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // PM25
203 AliMedium(47, "CC_C3 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); // PGC2
fb7a1f55 204
d2293f45 205}
fb7a1f55 206
fb7a1f55 207//_____________________________________________________________________________
d2293f45 208void AliCRT::SetTreeAddress()
209{
210
211 TBranch *branch;
212 char branchname[20];
213 sprintf(branchname,"%s",GetName());
387cc25e 214
d2293f45 215 // Branch address for hit tree
88cb7938 216 TTree *treeH = fLoader->TreeH();
d2293f45 217 if (treeH && fHits) {
218 branch = treeH->GetBranch(branchname);
219 if (branch) branch->SetAddress(&fHits);
220 }
d2293f45 221}