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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 | $Log$ | |
18 | ||
19 | */ | |
20 | ||
21 | /////////////////////////////////////////////////////////////////////////////// | |
22 | // // | |
23 | // Cosmic Rays ALICE Trigger // | |
24 | // This class contains the basic functions for the Cosmic Ray ALICE // | |
25 | // detector. Functions specific to one particular geometry are // | |
26 | // contained in the derived classes // | |
27 | // | |
28 | // Begin_Html | |
29 | /* | |
30 | <img src="picts/AliCRTClass.gif"> | |
31 | </pre> | |
32 | <p>The responsible person for this module is | |
33 | <a href="mailto:Enrique.Gamez.Flores@cern.ch">Enrique Gamez Flores</a>. | |
34 | </font> | |
35 | <pre> | |
36 | */ | |
37 | //End_Html | |
38 | // | |
39 | // | |
40 | // // | |
41 | /////////////////////////////////////////////////////////////////////////////// | |
42 | ||
43 | ||
44 | #include <iostream> | |
45 | #include <fstream> | |
46 | ||
47 | #include <TTree.h> | |
48 | ||
49 | ||
50 | #include "AliMC.h" | |
51 | #include "AliRun.h" | |
52 | #include "AliMagF.h" | |
53 | ||
54 | #include "AliCRT.h" | |
55 | #include "AliCRTConstants.h" | |
56 | #include "AliCRTdigit.h" | |
57 | #include "AliCRThit.h" | |
58 | ||
59 | ||
60 | ClassImp(AliCRT) | |
61 | ||
62 | ||
63 | static AliCRTdigit *digits; | |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | AliCRT::AliCRT() | |
67 | { | |
68 | // | |
69 | // Default constructor for L3 magnet | |
70 | // | |
71 | ||
72 | fIshunt = 1; | |
73 | fHits = 0; | |
74 | fDigits = 0; | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | AliCRT::AliCRT(const char *name, const char *title) | |
79 | : AliDetector(name,title) | |
80 | { | |
81 | // | |
82 | // Standard constructor for the CRT module | |
83 | // | |
84 | ||
85 | fIshunt = 1; // All hits are associated with primary particles | |
86 | ||
87 | fHits = new TClonesArray("AliCRThit",400) ; | |
88 | fDigits = new TClonesArray("AliCRTdigit",400) ; | |
89 | ||
90 | gAlice->AddHitList(fHits); | |
91 | ||
92 | SetMarkerColor(7); | |
93 | SetMarkerStyle(2); | |
94 | SetMarkerSize(0.4); | |
95 | ||
96 | } | |
97 | ||
98 | //_____________________________________________________________________________ | |
99 | AliCRT::~AliCRT() | |
100 | { | |
101 | // | |
102 | // Standar destructor. | |
103 | // | |
104 | if (fHits) { | |
105 | fHits->Delete(); | |
106 | delete fHits; | |
107 | } | |
108 | } | |
109 | ||
110 | //_____________________________________________________________________________ | |
111 | void AliCRT::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
112 | { | |
113 | // | |
114 | // Add a CRT hit | |
115 | // | |
116 | TClonesArray &lhits = *fHits; | |
117 | new(lhits[fNhits++]) AliCRThit(fIshunt,track,vol,hits); | |
118 | } | |
119 | ||
120 | //_____________________________________________________________________________ | |
121 | void AliCRT::AddDigit(Int_t *tracks,Int_t *digits) | |
122 | { | |
123 | ||
124 | // Add a CRT digit to the list. Dummy function. | |
125 | ||
126 | } | |
127 | ||
128 | //_____________________________________________________________________________ | |
129 | void AliCRT::Init() const | |
130 | { | |
131 | // | |
132 | // Initialise ... | |
133 | // | |
134 | ||
135 | Int_t i; | |
136 | // | |
137 | if(fDebug) { | |
138 | printf("\n%s: ",ClassName()); | |
139 | for(i=0;i<35;i++) printf("*"); | |
140 | printf(" CRT_INIT "); | |
141 | for(i=0;i<35;i++) printf("*"); | |
142 | printf("\n%s: ",ClassName()); | |
143 | // | |
144 | // Here the CRT initialisation code (if any!) | |
145 | for(i=0;i<80;i++) printf("*"); | |
146 | printf("\n"); | |
147 | } | |
148 | } | |
149 | ||
150 | //_____________________________________________________________________________ | |
151 | void AliCRT::ResetHits () | |
152 | { | |
153 | // Reset number of clusters and the cluster array for this detector | |
154 | AliDetector::ResetHits (); | |
155 | } | |
156 | ||
157 | //_____________________________________________________________________________ | |
158 | void AliCRT::ResetDigits () | |
159 | { | |
160 | // | |
161 | // Reset number of digits and the digits array for this detector | |
162 | AliDetector::ResetDigits (); | |
163 | // | |
164 | } | |
165 | ||
166 | //____________________________________________________________________________ | |
167 | void AliCRT::FinishEvent() | |
168 | { | |
169 | // do nothing | |
170 | } | |
171 | ||
172 | //_____________________________________________________________________________ | |
173 | void AliCRT::BuildGeometry() | |
174 | { | |
175 | // | |
176 | // Build simple ROOT TNode geometry for event display | |
177 | // | |
178 | } | |
179 | ||
180 | //_____________________________________________________________________________ | |
181 | void AliCRT::CreateGeometry() | |
182 | { | |
183 | // | |
184 | // Build simple ROOT TNode geometry for GEANT simulations | |
185 | // | |
186 | } | |
187 | ||
188 | //_____________________________________________________________________________ | |
189 | void AliCRT::CreateMaterials() | |
190 | { | |
191 | // Magnatic field inside the pit | |
192 | Int_t isxfld = gAlice->Field()->Integ(); | |
193 | Float_t sxmgmx = gAlice->Field()->Max(); | |
194 | ||
195 | //Magnetic field above the Magnet. | |
196 | Int_t xfield = 0; // no Magnetic field. | |
197 | Float_t xfieldm = 0; | |
198 | Float_t xepsil = 0.1; // Tracking precission in cm. obove the pit | |
199 | ||
200 | // --- Define the various materials for GEANT --- | |
201 | Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,28.086,39.1,40.08,55.85 }; | |
202 | Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. }; | |
203 | Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,.337021,.013,.044,.014 }; | |
204 | ||
205 | Float_t epsil, stmin, tmaxfd, deemax, stemax; | |
206 | // | |
207 | // Aluminum | |
208 | AliMaterial(9, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); | |
209 | AliMaterial(29, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); | |
210 | AliMaterial(49, "ALUMINIUM$", 26.98, 13., 2.7, 8.9, 37.2); | |
211 | // | |
212 | // Iron | |
213 | AliMaterial(10, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1); | |
214 | AliMaterial(30, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1); | |
215 | AliMaterial(50, "IRON$ ", 55.85, 26., 7.87, 1.76, 17.1); | |
216 | // | |
217 | // Air | |
218 | AliMaterial(15, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.); | |
219 | AliMaterial(35, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.); | |
220 | AliMaterial(55, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.); | |
221 | // | |
222 | // Vacuum | |
223 | AliMaterial(16, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
224 | AliMaterial(36, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
225 | AliMaterial(56, "VACUUM$ ", 1e-16, 1e-16, 1e-16, 1e16, 1e16); | |
226 | // | |
227 | // Concrete | |
228 | AliMixture(17, "CONCRETE$", aconc, zconc, 2.35, 10, wconc); | |
229 | AliMixture(37, "CONCRETE$", aconc, zconc, 2.35, 10, wconc); | |
230 | AliMixture(57, "CONCRETE$", aconc, zconc, 2.35, 10, wconc); | |
231 | ||
232 | ||
233 | // Scintillator material polystyrene | |
234 | Float_t aP[2] = {12.011, 1.00794}; | |
235 | Float_t zP[2] = {6.0, 1.0}; | |
236 | Float_t wP[2] = {1.0, 1.0}; | |
237 | Float_t dP = 1.032; | |
238 | AliMixture(3, "Polystyrene$", aP, zP, dP, -2, wP); | |
239 | // Standard ROCK, ROCK1 and molasse. | |
240 | Float_t aRock[1] = {22.}; | |
241 | Float_t zRock[1] = {11.}; | |
242 | Float_t wRock[1] = {1.}; | |
243 | Float_t dRock = 2.65; | |
244 | AliMixture(4, "Standard Rock$", aRock, zRock, dRock, 1, wRock); | |
245 | Float_t dRock1 = 2.2; | |
246 | AliMixture(5, "Rock1$", aRock, zRock, dRock1, 1, wRock); | |
247 | Float_t dMolasse = 2.50; | |
248 | AliMixture(6, "Molasse$", aRock, zRock, dMolasse, 1, wRock); | |
249 | ||
250 | // **************** | |
251 | // Defines tracking media parameters. | |
252 | // Les valeurs sont commentees pour laisser le defaut | |
253 | // a GEANT (version 3-21, page CONS200), f.m. | |
254 | epsil = .001; // Tracking precision, Inside the pit | |
255 | stemax = -1.; // Maximum displacement for multiple scattering | |
256 | tmaxfd = -20.; // Maximum angle due to field deflection | |
257 | deemax = -.3; // Maximum fractional energy loss, DLS | |
258 | stmin = -.8; | |
259 | // *************** | |
260 | ||
261 | // | |
262 | // Aluminum | |
263 | AliMedium(9, "ALU_C0 ", 9, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
264 | AliMedium(29, "ALU_C1 ", 29, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
265 | AliMedium(49, "ALU_C2 ", 49, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
266 | // | |
267 | // Iron | |
268 | AliMedium(10, "FE_C0 ", 10, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
269 | AliMedium(30, "FE_C1 ", 30, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
270 | AliMedium(50, "FE_C2 ", 50, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
271 | // | |
272 | // Air | |
273 | AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
274 | AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
275 | AliMedium(55, "AIR_C2 ", 55, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
276 | // | |
277 | // Vacuum | |
278 | AliMedium(16, "VA_C0 ", 16, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
279 | AliMedium(36, "VA_C1 ", 36, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
280 | AliMedium(56, "VA_C2 ", 56, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
281 | // | |
282 | // Concrete | |
283 | AliMedium(17, "CC_C0 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
284 | AliMedium(37, "CC_C1 ", 37, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
285 | AliMedium(57, "CC_C2 ", 57, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
286 | ||
287 | ||
288 | // The scintillator of the CPV made of Polystyrene | |
289 | // scintillator -> idtmed[1102] | |
290 | AliMedium(3, "CPV scint. ", 3, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin); | |
291 | ||
292 | // Standard ROCK -> idtmed[1103] | |
293 | AliMedium(4, "Standard Rock ", 4, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin); | |
294 | ||
295 | // ROCK1 -> idtmed[1104] | |
296 | AliMedium(5, "Rock 1 ", 5, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin); | |
297 | ||
298 | ||
299 | // Molasse -> idtmed[1105] | |
300 | AliMedium(6, "Molasse ", 6, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin); | |
301 | ||
302 | ||
303 | } | |
304 | ||
305 | //_____________________________________________________________________________ | |
306 | void AliCRT::MakeBranch(Option_t* option, const char *file) | |
307 | { | |
308 | // | |
309 | // Specific CRT branches | |
310 | // | |
311 | // Create Tree branches for the CRT. | |
312 | Int_t buffersize = 400; | |
313 | char branchname[10]; | |
314 | sprintf(branchname,"%s",GetName()); | |
315 | ||
316 | AliDetector::MakeBranch(option,file); | |
317 | ||
318 | const char *cD = strstr(option,"D"); | |
319 | ||
320 | if (cD) { | |
321 | digits = new AliCRTdigit(); | |
322 | MakeBranchInTree(gAlice->TreeD(), branchname, "AliCRTdigit", | |
323 | digits, buffersize, 1, file); | |
324 | } | |
325 | ||
326 | } | |
327 | //_____________________________________________________________________________ |