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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 | $Log$ |
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18 | Revision 1.3.2.1 2002/07/12 12:31:30 gamez |
19 | Material numbers, correction |
20 | |
21 | Revision 1.3 2002/07/10 15:53:10 gamez |
22 | Molasse redefinition |
23 | |
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24 | Revision 1.2 2002/07/09 08:45:35 hristov |
25 | Old style include files needed on HP (aCC) |
26 | |
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27 | Revision 1.1 2002/06/16 17:08:19 hristov |
28 | First version of CRT |
29 | |
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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 | |
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56 | #include <iostream.h> |
57 | #include <fstream.h> |
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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 | |
72 | ClassImp(AliCRT) |
73 | |
74 | |
75 | static AliCRTdigit *digits; |
76 | |
77 | //_____________________________________________________________________________ |
78 | AliCRT::AliCRT() |
79 | { |
80 | // |
81 | // Default constructor for L3 magnet |
82 | // |
83 | |
84 | fIshunt = 1; |
85 | fHits = 0; |
86 | fDigits = 0; |
87 | } |
88 | |
89 | //_____________________________________________________________________________ |
90 | AliCRT::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 | //_____________________________________________________________________________ |
111 | AliCRT::~AliCRT() |
112 | { |
113 | // |
114 | // Standar destructor. |
115 | // |
116 | if (fHits) { |
117 | fHits->Delete(); |
118 | delete fHits; |
119 | } |
120 | } |
121 | |
122 | //_____________________________________________________________________________ |
123 | void 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 | //_____________________________________________________________________________ |
133 | void AliCRT::AddDigit(Int_t *tracks,Int_t *digits) |
134 | { |
135 | |
136 | // Add a CRT digit to the list. Dummy function. |
137 | |
138 | } |
139 | |
140 | //_____________________________________________________________________________ |
141 | void 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 | //_____________________________________________________________________________ |
163 | void AliCRT::ResetHits () |
164 | { |
165 | // Reset number of clusters and the cluster array for this detector |
166 | AliDetector::ResetHits (); |
167 | } |
168 | |
169 | //_____________________________________________________________________________ |
170 | void AliCRT::ResetDigits () |
171 | { |
172 | // |
173 | // Reset number of digits and the digits array for this detector |
174 | AliDetector::ResetDigits (); |
175 | // |
176 | } |
177 | |
178 | //____________________________________________________________________________ |
179 | void AliCRT::FinishEvent() |
180 | { |
181 | // do nothing |
182 | } |
183 | |
184 | //_____________________________________________________________________________ |
185 | void AliCRT::BuildGeometry() |
186 | { |
187 | // |
188 | // Build simple ROOT TNode geometry for event display |
189 | // |
190 | } |
191 | |
192 | //_____________________________________________________________________________ |
193 | void AliCRT::CreateGeometry() |
194 | { |
195 | // |
196 | // Build simple ROOT TNode geometry for GEANT simulations |
197 | // |
198 | } |
199 | |
200 | //_____________________________________________________________________________ |
201 | void 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 --- |
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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.); |
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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; |
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235 | AliMixture(13, "Polystyrene$", aP, zP, dP, -2, wP); |
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236 | // Subalpine Molasse over the ALICE hall. |
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237 | Float_t aMolasse[10] = { 1., 12.01, 15.994, 22.99, 24.305, 26.98, 28.086, 39.1, 40.08, 55.85 }; |
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238 | Float_t zMolasse[10] = {1., 6., 8., 11., 12., 13., 14., 19., 20., 26.}; |
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239 | Float_t wMolasse[10] = {0.008, 0.043, 0.485, 0.007, 0.042, 0.037, 0.215, 0.023, 0.1, 0.04}; |
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240 | Float_t dMolasse = 2.40; |
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241 | AliMixture(24, "Molasse$", aMolasse, zMolasse, dMolasse, 10, wMolasse); |
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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); |
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269 | |
270 | |
271 | // The scintillator of the CPV made of Polystyrene |
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272 | // scintillator -> idtmed[1112] |
273 | AliMedium(13 , "CPV scint. ", 13, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin); |
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274 | |
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275 | // Molasse -> idtmed[1123] |
276 | AliMedium(24 , "Molasse ", 24, 0, xfield, xfieldm, tmaxfd, stemax, deemax, xepsil, stmin); |
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277 | |
278 | |
279 | } |
280 | |
281 | //_____________________________________________________________________________ |
282 | void 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 | //_____________________________________________________________________________ |