CRT3 volume taken as sensitive volume
[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
16/*
17$Log$
2c3b33cd 18Revision 1.3.2.1 2002/07/12 12:31:30 gamez
19Material numbers, correction
20
21Revision 1.3 2002/07/10 15:53:10 gamez
22Molasse redefinition
23
c8a19f01 24Revision 1.2 2002/07/09 08:45:35 hristov
25Old style include files needed on HP (aCC)
26
b73f53b3 27Revision 1.1 2002/06/16 17:08:19 hristov
28First version of CRT
29
fb7a1f55 30
31*/
32
33///////////////////////////////////////////////////////////////////////////////
34// //
35// Cosmic Rays ALICE Trigger //
36// This class contains the basic functions for the Cosmic Ray ALICE //
37// detector. Functions specific to one particular geometry are //
38// contained in the derived classes //
39//
40// Begin_Html
41/*
42<img src="picts/AliCRTClass.gif">
43</pre>
44<p>The responsible person for this module is
45<a href="mailto:Enrique.Gamez.Flores@cern.ch">Enrique Gamez Flores</a>.
46</font>
47<pre>
48*/
49//End_Html
50//
51//
52// //
53///////////////////////////////////////////////////////////////////////////////
54
55
b73f53b3 56#include <iostream.h>
57#include <fstream.h>
fb7a1f55 58
59#include <TTree.h>
60
61
62#include "AliMC.h"
63#include "AliRun.h"
64#include "AliMagF.h"
65
66#include "AliCRT.h"
67#include "AliCRTConstants.h"
68#include "AliCRTdigit.h"
69#include "AliCRThit.h"
70
71
72ClassImp(AliCRT)
73
74
75static AliCRTdigit *digits;
76
77//_____________________________________________________________________________
78AliCRT::AliCRT()
79{
80 //
81 // Default constructor for L3 magnet
82 //
83
84 fIshunt = 1;
85 fHits = 0;
86 fDigits = 0;
87}
88
89//_____________________________________________________________________________
90AliCRT::AliCRT(const char *name, const char *title)
91 : AliDetector(name,title)
92{
93 //
94 // Standard constructor for the CRT module
95 //
96
97 fIshunt = 1; // All hits are associated with primary particles
98
99 fHits = new TClonesArray("AliCRThit",400) ;
100 fDigits = new TClonesArray("AliCRTdigit",400) ;
101
102 gAlice->AddHitList(fHits);
103
104 SetMarkerColor(7);
105 SetMarkerStyle(2);
106 SetMarkerSize(0.4);
107
108}
109
110//_____________________________________________________________________________
111AliCRT::~AliCRT()
112{
113 //
114 // Standar destructor.
115 //
116 if (fHits) {
117 fHits->Delete();
118 delete fHits;
119 }
120}
121
122//_____________________________________________________________________________
123void AliCRT::AddHit(Int_t track, Int_t *vol, Float_t *hits)
124{
125 //
126 // Add a CRT hit
127 //
128 TClonesArray &lhits = *fHits;
129 new(lhits[fNhits++]) AliCRThit(fIshunt,track,vol,hits);
130}
131
132//_____________________________________________________________________________
133void AliCRT::AddDigit(Int_t *tracks,Int_t *digits)
134{
135
136 // Add a CRT digit to the list. Dummy function.
137
138}
139
140//_____________________________________________________________________________
141void AliCRT::Init() const
142{
143 //
144 // Initialise ...
145 //
146
147 Int_t i;
148 //
149 if(fDebug) {
150 printf("\n%s: ",ClassName());
151 for(i=0;i<35;i++) printf("*");
152 printf(" CRT_INIT ");
153 for(i=0;i<35;i++) printf("*");
154 printf("\n%s: ",ClassName());
155 //
156 // Here the CRT initialisation code (if any!)
157 for(i=0;i<80;i++) printf("*");
158 printf("\n");
159 }
160}
161
162//_____________________________________________________________________________
163void AliCRT::ResetHits ()
164{
165 // Reset number of clusters and the cluster array for this detector
166 AliDetector::ResetHits ();
167}
168
169//_____________________________________________________________________________
170void AliCRT::ResetDigits ()
171{
172 //
173 // Reset number of digits and the digits array for this detector
174 AliDetector::ResetDigits ();
175 //
176}
177
178//____________________________________________________________________________
179void AliCRT::FinishEvent()
180{
181// do nothing
182}
183
184//_____________________________________________________________________________
185void AliCRT::BuildGeometry()
186{
187 //
188 // Build simple ROOT TNode geometry for event display
189 //
190}
191
192//_____________________________________________________________________________
193void AliCRT::CreateGeometry()
194{
195 //
196 // Build simple ROOT TNode geometry for GEANT simulations
197 //
198}
199
200//_____________________________________________________________________________
201void AliCRT::CreateMaterials()
202{
203 // Magnatic field inside the pit
204 Int_t isxfld = gAlice->Field()->Integ();
205 Float_t sxmgmx = gAlice->Field()->Max();
206
207 //Magnetic field above the Magnet.
208 Int_t xfield = 0; // no Magnetic field.
209 Float_t xfieldm = 0;
210 Float_t xepsil = 0.1; // Tracking precission in cm. obove the pit
211
212 // --- Define the various materials for GEANT ---
fb7a1f55 213 Float_t epsil, stmin, tmaxfd, deemax, stemax;
214 //
215 // Aluminum
216 AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
217 AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
218 AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2);
219 //
220 // Iron
221 AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
222 AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
223 AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1);
224 //
225 // Air
226 AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
227 AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
228 AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.);
fb7a1f55 229
230 // Scintillator material polystyrene
231 Float_t aP[2] = {12.011, 1.00794};
232 Float_t zP[2] = {6.0, 1.0};
233 Float_t wP[2] = {1.0, 1.0};
234 Float_t dP = 1.032;
2c3b33cd 235 AliMixture(13, "Polystyrene$", aP, zP, dP, -2, wP);
c8a19f01 236 // Subalpine Molasse over the ALICE hall.
2c3b33cd 237 Float_t aMolasse[10] = { 1., 12.01, 15.994, 22.99, 24.305, 26.98, 28.086, 39.1, 40.08, 55.85 };
c8a19f01 238 Float_t zMolasse[10] = {1., 6., 8., 11., 12., 13., 14., 19., 20., 26.};
2c3b33cd 239 Float_t wMolasse[10] = {0.008, 0.043, 0.485, 0.007, 0.042, 0.037, 0.215, 0.023, 0.1, 0.04};
c8a19f01 240 Float_t dMolasse = 2.40;
2c3b33cd 241 AliMixture(24, "Molasse$", aMolasse, zMolasse, dMolasse, 10, wMolasse);
fb7a1f55 242
243 // ****************
244 // Defines tracking media parameters.
245 // Les valeurs sont commentees pour laisser le defaut
246 // a GEANT (version 3-21, page CONS200), f.m.
247 epsil = .001; // Tracking precision, Inside the pit
248 stemax = -1.; // Maximum displacement for multiple scattering
249 tmaxfd = -20.; // Maximum angle due to field deflection
250 deemax = -.3; // Maximum fractional energy loss, DLS
251 stmin = -.8;
252 // ***************
253
254 //
255 // Aluminum
256 AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
257 AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
258 AliMedium(49, "ALU_C2 ", 49, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
259 //
260 // Iron
261 AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
262 AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
263 AliMedium(50, "FE_C2 ", 50, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
264 //
265 // Air
266 AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
267 AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
268 AliMedium(55, "AIR_C2 ", 55, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin);
fb7a1f55 269
270
271 // The scintillator of the CPV made of Polystyrene
2c3b33cd 272 // scintillator -> idtmed[1112]
273 AliMedium(13 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
fb7a1f55 274
2c3b33cd 275 // Molasse -> idtmed[1123]
276 AliMedium(24 , "Molasse ", 24, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin);
fb7a1f55 277
278
279}
280
281//_____________________________________________________________________________
282void AliCRT::MakeBranch(Option_t* option, const char *file)
283{
284 //
285 // Specific CRT branches
286 //
287 // Create Tree branches for the CRT.
288 Int_t buffersize = 400;
289 char branchname[10];
290 sprintf(branchname,"%s",GetName());
291
292 AliDetector::MakeBranch(option,file);
293
294 const char *cD = strstr(option,"D");
295
296 if (cD) {
297 digits = new AliCRTdigit();
298 MakeBranchInTree(gAlice->TreeD(), branchname, "AliCRTdigit",
299 digits, buffersize, 1, file);
300 }
301
302}
303//_____________________________________________________________________________