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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 | ||
fb7a1f55 | 40 | #include <TTree.h> |
88cb7938 | 41 | #include <TVirtualMC.h> |
fb7a1f55 | 42 | |
43 | #include "AliCRT.h" | |
44 | #include "AliCRTConstants.h" | |
fb7a1f55 | 45 | #include "AliCRThit.h" |
88cb7938 | 46 | #include "AliLoader.h" |
47 | #include "AliMagF.h" | |
48 | #include "AliRun.h" | |
fb7a1f55 | 49 | |
50 | ClassImp(AliCRT) | |
51 | ||
fb7a1f55 | 52 | //_____________________________________________________________________________ |
53 | AliCRT::AliCRT() | |
54 | { | |
55 | // | |
d2293f45 | 56 | // Default constructor for the CRT |
fb7a1f55 | 57 | // |
58 | ||
d2293f45 | 59 | fIshunt = 0; |
fb7a1f55 | 60 | fHits = 0; |
d2293f45 | 61 | |
fb7a1f55 | 62 | } |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | AliCRT::AliCRT(const char *name, const char *title) | |
66 | : AliDetector(name,title) | |
67 | { | |
68 | // | |
69 | // Standard constructor for the CRT module | |
70 | // | |
71 | ||
72 | fIshunt = 1; // All hits are associated with primary particles | |
73 | ||
74 | fHits = new TClonesArray("AliCRThit",400) ; | |
fb7a1f55 | 75 | |
76 | gAlice->AddHitList(fHits); | |
77 | ||
78 | SetMarkerColor(7); | |
79 | SetMarkerStyle(2); | |
80 | SetMarkerSize(0.4); | |
81 | ||
82 | } | |
83 | ||
d2293f45 | 84 | //_____________________________________________________________________________ |
85 | AliCRT::AliCRT(const AliCRT& crt) | |
86 | { | |
87 | // | |
88 | // Copy ctor. | |
89 | // | |
90 | crt.Copy(*this); | |
91 | } | |
92 | ||
93 | //_____________________________________________________________________________ | |
94 | AliCRT& AliCRT::operator= (const AliCRT& crt) | |
95 | { | |
96 | // | |
97 | // Asingment operator. | |
98 | // | |
99 | crt.Copy(*this); | |
100 | return *this; | |
101 | } | |
102 | ||
fb7a1f55 | 103 | //_____________________________________________________________________________ |
104 | AliCRT::~AliCRT() | |
105 | { | |
106 | // | |
107 | // Standar destructor. | |
108 | // | |
109 | if (fHits) { | |
110 | fHits->Delete(); | |
111 | delete fHits; | |
112 | } | |
113 | } | |
114 | ||
115 | //_____________________________________________________________________________ | |
116 | void AliCRT::AddHit(Int_t track, Int_t *vol, Float_t *hits) | |
117 | { | |
118 | // | |
119 | // Add a CRT hit | |
120 | // | |
121 | TClonesArray &lhits = *fHits; | |
122 | new(lhits[fNhits++]) AliCRThit(fIshunt,track,vol,hits); | |
123 | } | |
124 | ||
125 | //_____________________________________________________________________________ | |
126 | void AliCRT::AddDigit(Int_t *tracks,Int_t *digits) | |
127 | { | |
d2293f45 | 128 | // |
fb7a1f55 | 129 | // Add a CRT digit to the list. Dummy function. |
d2293f45 | 130 | // |
fb7a1f55 | 131 | } |
132 | ||
133 | //_____________________________________________________________________________ | |
134 | void AliCRT::Init() const | |
135 | { | |
136 | // | |
137 | // Initialise ... | |
138 | // | |
139 | ||
140 | Int_t i; | |
141 | // | |
142 | if(fDebug) { | |
143 | printf("\n%s: ",ClassName()); | |
144 | for(i=0;i<35;i++) printf("*"); | |
145 | printf(" CRT_INIT "); | |
146 | for(i=0;i<35;i++) printf("*"); | |
147 | printf("\n%s: ",ClassName()); | |
148 | // | |
149 | // Here the CRT initialisation code (if any!) | |
150 | for(i=0;i<80;i++) printf("*"); | |
151 | printf("\n"); | |
152 | } | |
153 | } | |
154 | ||
155 | //_____________________________________________________________________________ | |
d2293f45 | 156 | void AliCRT::ResetHits() |
fb7a1f55 | 157 | { |
158 | // Reset number of clusters and the cluster array for this detector | |
d2293f45 | 159 | AliDetector::ResetHits(); |
fb7a1f55 | 160 | } |
161 | ||
162 | //_____________________________________________________________________________ | |
d2293f45 | 163 | void AliCRT::ResetDigits() |
fb7a1f55 | 164 | { |
165 | // | |
166 | // Reset number of digits and the digits array for this detector | |
d2293f45 | 167 | AliDetector::ResetDigits(); |
fb7a1f55 | 168 | } |
169 | ||
170 | //____________________________________________________________________________ | |
171 | void AliCRT::FinishEvent() | |
172 | { | |
173 | // do nothing | |
174 | } | |
175 | ||
176 | //_____________________________________________________________________________ | |
177 | void AliCRT::BuildGeometry() | |
178 | { | |
179 | // | |
180 | // Build simple ROOT TNode geometry for event display | |
181 | // | |
182 | } | |
183 | ||
184 | //_____________________________________________________________________________ | |
185 | void AliCRT::CreateGeometry() | |
186 | { | |
187 | // | |
188 | // Build simple ROOT TNode geometry for GEANT simulations | |
189 | // | |
190 | } | |
191 | ||
192 | //_____________________________________________________________________________ | |
193 | void AliCRT::CreateMaterials() | |
194 | { | |
195 | // Magnatic field inside the pit | |
196 | Int_t isxfld = gAlice->Field()->Integ(); | |
197 | Float_t sxmgmx = gAlice->Field()->Max(); | |
198 | ||
199 | //Magnetic field above the Magnet. | |
200 | Int_t xfield = 0; // no Magnetic field. | |
201 | Float_t xfieldm = 0; | |
202 | Float_t xepsil = 0.1; // Tracking precission in cm. obove the pit | |
203 | ||
204 | // --- Define the various materials for GEANT --- | |
fb7a1f55 | 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.); | |
d2293f45 | 221 | AliMaterial(75, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.); |
222 | AliMaterial(95, "AIR$ ", 14.61, 7.3, .001205, 30423.24, 67500.); | |
223 | ||
fb7a1f55 | 224 | |
225 | // Scintillator material polystyrene | |
226 | Float_t aP[2] = {12.011, 1.00794}; | |
227 | Float_t zP[2] = {6.0, 1.0}; | |
228 | Float_t wP[2] = {1.0, 1.0}; | |
229 | Float_t dP = 1.032; | |
2c3b33cd | 230 | AliMixture(13, "Polystyrene$", aP, zP, dP, -2, wP); |
c8a19f01 | 231 | // Subalpine Molasse over the ALICE hall. |
2c3b33cd | 232 | Float_t aMolasse[10] = { 1., 12.01, 15.994, 22.99, 24.305, 26.98, 28.086, 39.1, 40.08, 55.85 }; |
c8a19f01 | 233 | Float_t zMolasse[10] = {1., 6., 8., 11., 12., 13., 14., 19., 20., 26.}; |
2c3b33cd | 234 | Float_t wMolasse[10] = {0.008, 0.043, 0.485, 0.007, 0.042, 0.037, 0.215, 0.023, 0.1, 0.04}; |
c8a19f01 | 235 | Float_t dMolasse = 2.40; |
2c3b33cd | 236 | AliMixture(24, "Molasse$", aMolasse, zMolasse, dMolasse, 10, wMolasse); |
fb7a1f55 | 237 | |
238 | // **************** | |
239 | // Defines tracking media parameters. | |
240 | // Les valeurs sont commentees pour laisser le defaut | |
241 | // a GEANT (version 3-21, page CONS200), f.m. | |
242 | epsil = .001; // Tracking precision, Inside the pit | |
243 | stemax = -1.; // Maximum displacement for multiple scattering | |
244 | tmaxfd = -20.; // Maximum angle due to field deflection | |
245 | deemax = -.3; // Maximum fractional energy loss, DLS | |
246 | stmin = -.8; | |
247 | // *************** | |
248 | ||
d2293f45 | 249 | Float_t atmaxfd = 10.; |
250 | Float_t adeemax = -0.1; | |
251 | Float_t aepsil = 0.1; | |
252 | Float_t astmin = -10.; | |
253 | ||
fb7a1f55 | 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 | |
d2293f45 | 266 | AliMedium(15, "AIR_C0 ", 15, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin); |
267 | AliMedium(35, "AIR_C1 ", 35, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin); | |
268 | AliMedium(55, "AIR_C2 ", 55, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin); | |
269 | AliMedium(75, "AIR_C4 ", 75, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin); | |
270 | AliMedium(75, "AIR_C5 ", 95, 0, isxfld, sxmgmx, atmaxfd, stemax, adeemax, aepsil, astmin); | |
271 | ||
fb7a1f55 | 272 | |
273 | ||
274 | // The scintillator of the CPV made of Polystyrene | |
2c3b33cd | 275 | // scintillator -> idtmed[1112] |
276 | AliMedium(13 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin); | |
fb7a1f55 | 277 | |
2c3b33cd | 278 | // Molasse -> idtmed[1123] |
279 | AliMedium(24 , "Molasse ", 24, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin); | |
fb7a1f55 | 280 | |
d2293f45 | 281 | // Concrete, in case if we need to put hte shafts by ourselves. |
fb7a1f55 | 282 | |
d2293f45 | 283 | Float_t aconc[10] = { 1.,12.01,15.994,22.99,24.305,26.98,28.086,39.1,40.08,55.85 }; |
284 | Float_t zconc[10] = { 1.,6.,8.,11.,12.,13.,14.,19.,20.,26. }; | |
285 | Float_t wconc[10] = { .01,.001,.529107,.016,.002,.033872,.337021,.013,.044,.014 }; | |
286 | ||
287 | AliMixture(17, "CONCRETE$", aconc, zconc, 2.35, 10, wconc); | |
288 | // Concrete | |
289 | AliMedium(17, "CC_C0 ", 17, 0, isxfld, sxmgmx, tmaxfd, stemax, deemax, epsil, stmin); | |
fb7a1f55 | 290 | |
d2293f45 | 291 | } |
292 | /* | |
fb7a1f55 | 293 | //_____________________________________________________________________________ |
294 | void AliCRT::MakeBranch(Option_t* option, const char *file) | |
295 | { | |
296 | // | |
297 | // Specific CRT branches | |
298 | // | |
299 | // Create Tree branches for the CRT. | |
300 | Int_t buffersize = 400; | |
301 | char branchname[10]; | |
302 | sprintf(branchname,"%s",GetName()); | |
303 | ||
304 | AliDetector::MakeBranch(option,file); | |
305 | ||
306 | const char *cD = strstr(option,"D"); | |
307 | ||
308 | if (cD) { | |
309 | digits = new AliCRTdigit(); | |
310 | MakeBranchInTree(gAlice->TreeD(), branchname, "AliCRTdigit", | |
311 | digits, buffersize, 1, file); | |
312 | } | |
313 | ||
314 | } | |
d2293f45 | 315 | */ |
fb7a1f55 | 316 | //_____________________________________________________________________________ |
d2293f45 | 317 | void AliCRT::SetTreeAddress() |
318 | { | |
319 | ||
320 | TBranch *branch; | |
321 | char branchname[20]; | |
322 | sprintf(branchname,"%s",GetName()); | |
323 | ||
324 | // Branch address for hit tree | |
88cb7938 | 325 | TTree *treeH = fLoader->TreeH(); |
d2293f45 | 326 | if (treeH && fHits) { |
327 | branch = treeH->GetBranch(branchname); | |
328 | if (branch) branch->SetAddress(&fHits); | |
329 | } | |
330 | ||
331 | } |