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4c039060 | 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 | /* $Id$ */ |
4c039060 | 17 | |
73042f01 | 18 | // |
fe4da5cc | 19 | /////////////////////////////////////////////////////////////////////////////// |
20 | // // | |
21 | // Time Projection Chamber version 2 -- detailed TPC and slow simulation // | |
22 | // // | |
23 | //Begin_Html | |
24 | /* | |
1439f98e | 25 | <img src="picts/AliTPCv2Class.gif"> |
fe4da5cc | 26 | */ |
27 | //End_Html | |
28 | // // | |
29 | // // | |
30 | /////////////////////////////////////////////////////////////////////////////// | |
116cbefd | 31 | |
2a49965d | 32 | #include <stdlib.h> |
fe4da5cc | 33 | |
88cb7938 | 34 | #include <TLorentzVector.h> |
fe4da5cc | 35 | #include <TMath.h> |
116cbefd | 36 | #include <TPDGCode.h> |
f77f13c8 | 37 | #include <TVirtualMC.h> |
d9e80aca | 38 | #include <TString.h> |
39 | #include <TSystem.h> | |
bcac8ae4 | 40 | |
fe4da5cc | 41 | #include "AliConst.h" |
f77f13c8 | 42 | #include "AliLog.h" |
43 | #include "AliMC.h" | |
116cbefd | 44 | #include "AliRun.h" |
45 | #include "AliTPCDigitsArray.h" | |
73042f01 | 46 | #include "AliTPCParam.h" |
47 | #include "AliTPCParamSR.h" | |
4ed5dced | 48 | #include "AliTPCTrackHitsV2.h" |
116cbefd | 49 | #include "AliTPCv2.h" |
c1637e41 | 50 | #include "TGeoManager.h" |
51 | #include "TGeoVolume.h" | |
52 | #include "TGeoPcon.h" | |
53 | #include "TGeoTube.h" | |
54 | #include "TGeoPgon.h" | |
55 | #include "TGeoTrd1.h" | |
56 | #include "TGeoCompositeShape.h" | |
57 | #include "TGeoPara.h" | |
58 | ClassImp(AliTPCv2) | |
59 | ||
60 | //_____________________________________________________________________________ | |
61 | AliTPCv2::AliTPCv2(const char *name, const char *title) : | |
62 | AliTPC(name, title) | |
63 | { | |
64 | // | |
65 | // Standard constructor for Time Projection Chamber version 2 | |
66 | // | |
6a905708 | 67 | |
37831078 | 68 | |
c1637e41 | 69 | SetBufferSize(128000); |
79575d04 | 70 | |
79575d04 | 71 | |
c1637e41 | 72 | if (fTPCParam) |
73 | fTPCParam->Write(fTPCParam->GetTitle()); | |
74 | } | |
75 | ||
76 | //_____________________________________________________________________________ | |
77 | void AliTPCv2::CreateGeometry() | |
78 | { | |
79 | // | |
80 | // Create the geometry of Time Projection Chamber version 2 | |
81 | // | |
82 | //Begin_Html | |
83 | /* | |
84 | <img src="picts/AliTPC.gif"> | |
85 | */ | |
86 | //End_Html | |
87 | //Begin_Html | |
88 | /* | |
89 | <img src="picts/AliTPCv2Tree.gif"> | |
90 | */ | |
91 | //End_Html | |
37831078 | 92 | |
93 | //---------------------------------------------------------- | |
c1637e41 | 94 | // This geometry is written using TGeo class |
95 | // Firstly the shapes are defined, and only then the volumes | |
96 | // What is recognized by the MC are volumes | |
37831078 | 97 | //---------------------------------------------------------- |
c1637e41 | 98 | // |
99 | // tpc - this will be the mother volume | |
100 | // | |
37831078 | 101 | |
c1637e41 | 102 | // |
103 | // here I define a volume TPC | |
104 | // retrive the medium name with "TPC_" as a leading string | |
105 | // | |
106 | TGeoPcon *tpc = new TGeoPcon(0.,360.,18); //18 sections | |
107 | tpc->DefineSection(0,-290.,77.,278.); | |
456cb019 | 108 | tpc->DefineSection(1,-259.6,70.,278.); |
c1637e41 | 109 | // |
110 | tpc->DefineSection(2,-259.6,68.1,278.); | |
111 | tpc->DefineSection(3,-253.6,68.1,278.); | |
112 | // | |
113 | tpc->DefineSection(4,-253.6,68.,278.); | |
114 | tpc->DefineSection(5,-74.0,60.8,278.); | |
115 | // | |
116 | tpc->DefineSection(6,-74.0,60.1,278.); | |
117 | tpc->DefineSection(7,-73.3,60.1,278.); | |
118 | // | |
119 | tpc->DefineSection(8,-73.3,56.9,278.); | |
120 | tpc->DefineSection(9,73.3,56.9,278.); | |
121 | // | |
122 | tpc->DefineSection(10,73.3,60.1,278.); | |
123 | tpc->DefineSection(11,74.0,60.1,278.); | |
124 | // | |
125 | tpc->DefineSection(12,74.0,60.8,278.); | |
126 | tpc->DefineSection(13,253.6,65.5,278.); | |
127 | // | |
128 | tpc->DefineSection(14,253.6,65.6,278.); | |
129 | tpc->DefineSection(15,259.6,65.6,278.); | |
130 | // | |
456cb019 | 131 | tpc->DefineSection(16,259.6,70.0,278.); |
c1637e41 | 132 | tpc->DefineSection(17,290.,77.,278.); |
133 | // | |
134 | TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air"); | |
135 | TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1); | |
136 | // | |
137 | // drift volume - sensitive volume, extended beyond the | |
138 | // endcaps, because of the alignment | |
139 | // | |
140 | TGeoPcon *dvol = new TGeoPcon(0.,360.,6); | |
141 | dvol->DefineSection(0,-260.,74.5,264.4); | |
142 | dvol->DefineSection(1,-253.6,74.5,264.4); | |
143 | // | |
144 | dvol->DefineSection(2,-253.6,76.6774,258.); | |
145 | dvol->DefineSection(3,253.6,76.6774,258.); | |
146 | // | |
147 | dvol->DefineSection(4,253.6,74.5,264.4); | |
148 | dvol->DefineSection(5,260.,74.5,264.4); | |
149 | // | |
150 | TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-2"); | |
151 | TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5); | |
152 | // | |
153 | v1->AddNode(v9,1); | |
154 | // | |
155 | // outer insulator | |
156 | // | |
157 | TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator | |
158 | // | |
159 | tpco->DefineSection(0,-256.6,264.8,278.); | |
160 | tpco->DefineSection(1,-253.6,264.8,278.); | |
161 | // | |
162 | tpco->DefineSection(2,-253.6,258.,278.); | |
163 | tpco->DefineSection(3,250.6,258.,278.); | |
164 | // | |
165 | tpco->DefineSection(4,250.6,258.,275.5); | |
166 | tpco->DefineSection(5,253.6,258.,275.5); | |
167 | // | |
168 | TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2"); | |
169 | TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2); | |
170 | // | |
171 | // outer containment vessel | |
172 | // | |
173 | TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel | |
174 | // | |
175 | tocv->DefineSection(0,-256.6,264.8,278.); | |
176 | tocv->DefineSection(1,-253.6,264.8,278.); | |
177 | // | |
178 | tocv->DefineSection(2,-253.6,274.8124,278.); | |
179 | tocv->DefineSection(3,247.6,274.8124,278.); | |
180 | // | |
181 | tocv->DefineSection(4,247.6,270.4,278.); | |
182 | tocv->DefineSection(5,250.6,270.4,278.); | |
183 | // | |
184 | TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al"); | |
185 | TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3); | |
186 | // | |
187 | TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy | |
188 | TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar | |
189 | TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2 | |
190 | TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex | |
191 | // | |
192 | TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy"); | |
193 | TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar"); | |
194 | TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2"); | |
195 | TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex"); | |
196 | // | |
197 | TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1); | |
198 | TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2); | |
199 | TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3); | |
200 | TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4); | |
201 | //------------------------------------------------------- | |
202 | // Tpc Outer Field Cage | |
203 | // daughters - composite (sandwich) | |
204 | //------------------------------------------------------- | |
37831078 | 205 | |
c1637e41 | 206 | TGeoPcon *tofc = new TGeoPcon(0.,360.,6); |
207 | // | |
208 | tofc->DefineSection(0,-253.6,258.,269.6); | |
209 | tofc->DefineSection(1,-250.6,258.,269.6); | |
210 | // | |
211 | tofc->DefineSection(2,-250.6,258.,260.0676); | |
212 | tofc->DefineSection(3,250.6,258.,260.0676); | |
213 | // | |
214 | tofc->DefineSection(4,250.6,258.,275.5); | |
215 | tofc->DefineSection(5,253.6,258.,275.5); | |
216 | // | |
217 | TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3); | |
218 | //sandwich | |
219 | TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar | |
220 | TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3 | |
221 | TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex | |
222 | // | |
223 | TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3"); | |
224 | // | |
225 | TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2); | |
226 | TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5); | |
227 | TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4); | |
228 | // | |
229 | // outer part - positioning | |
230 | // | |
231 | tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1); | |
232 | // | |
233 | tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1); | |
234 | // | |
456cb019 | 235 | v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1); |
c1637e41 | 236 | // |
237 | v2->AddNode(v3,1); v2->AddNode(v4,1); | |
238 | // | |
239 | v1->AddNode(v2,1); | |
240 | //-------------------------------------------------------------------- | |
241 | // Tpc Inner INsulator (CO2) | |
242 | // the cones, the central drum and the inner f.c. sandwich with a piece | |
243 | // of the flane will be placed in the TPC | |
244 | //-------------------------------------------------------------------- | |
245 | TGeoPcon *tpci = new TGeoPcon(0.,360.,4); | |
246 | // | |
247 | tpci->DefineSection(0,-253.6,68.4,76.6774); | |
248 | tpci->DefineSection(1,-74.0,61.2,76.6774); | |
249 | // | |
250 | tpci->DefineSection(2,74.0,61.2,76.6774); | |
251 | // | |
252 | tpci->DefineSection(3,253.6,65.9,76.6774); | |
253 | // | |
254 | TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2); | |
255 | // | |
256 | // now the inner field cage - only part of flanges (2 copies) | |
257 | // | |
258 | TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5); | |
259 | TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3); | |
260 | // | |
261 | //--------------------------------------------------------- | |
262 | // Tpc Inner Containment vessel - Muon side | |
263 | //--------------------------------------------------------- | |
264 | TGeoPcon *tcms = new TGeoPcon(0.,360.,10); | |
265 | // | |
266 | tcms->DefineSection(0,-259.1,68.1,74.2); | |
267 | tcms->DefineSection(1,-253.6,68.1,74.2); | |
268 | // | |
269 | tcms->DefineSection(2,-253.6,68.1,68.4); | |
270 | tcms->DefineSection(3,-74.0,60.9,61.2); | |
271 | // | |
272 | tcms->DefineSection(4,-74.0,60.1,61.2); | |
273 | tcms->DefineSection(5,-73.3,60.1,61.2); | |
274 | // | |
275 | tcms->DefineSection(6,-73.3,56.9,61.2); | |
276 | tcms->DefineSection(7,-73.0,56.9,61.2); | |
277 | // | |
278 | tcms->DefineSection(8,-73.0,56.9,58.8); | |
279 | tcms->DefineSection(9,-71.3,56.9,58.8); | |
280 | // | |
281 | TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3); | |
282 | //----------------------------------------------- | |
283 | // inner containment vessel - shaft side | |
284 | //----------------------------------------------- | |
285 | TGeoPcon *tcss = new TGeoPcon(0.,360.,10); | |
286 | // | |
287 | tcss->DefineSection(0,71.3,56.9,58.8); | |
288 | tcss->DefineSection(1,73.0,56.9,58.8); | |
289 | // | |
290 | tcss->DefineSection(2,73.0,56.9,61.2); | |
291 | tcss->DefineSection(3,73.3,56.9,61.2); | |
292 | // | |
293 | tcss->DefineSection(4,73.3,60.1,61.2); | |
294 | tcss->DefineSection(5,74.0,60.1,61.2); | |
295 | // | |
296 | tcss->DefineSection(6,74.0,60.9,61.2); | |
297 | tcss->DefineSection(7,253.6,65.6,65.9); | |
298 | // | |
299 | tcss->DefineSection(8,253.6,65.6,74.2); | |
300 | tcss->DefineSection(9,258.1,65.6,74.2); | |
301 | // | |
302 | TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3); | |
303 | //----------------------------------------------- | |
304 | // Inner field cage | |
305 | // define 4 parts and make an assembly | |
306 | //----------------------------------------------- | |
307 | // part1 - Al - 2 copies | |
308 | TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75); | |
309 | TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3); | |
310 | // sandwich - outermost parts - 2 copies | |
311 | TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns | |
312 | TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns | |
313 | TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns | |
314 | TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm | |
315 | // | |
316 | TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2); | |
317 | TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3); | |
318 | TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5); | |
319 | TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4); | |
320 | // | |
321 | // middle parts - 2 copies | |
322 | TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns | |
323 | TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns | |
324 | TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns | |
325 | TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm | |
326 | // | |
327 | TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2); | |
328 | TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3); | |
329 | TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5); | |
330 | TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4); | |
331 | // central part - 1 copy | |
332 | TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns | |
333 | TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns | |
334 | TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm | |
335 | // | |
336 | TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2); | |
337 | TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5); | |
338 | TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4); | |
339 | // | |
340 | // inner part - positioning | |
341 | // | |
342 | // creating a sandwich | |
343 | tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1); | |
344 | // | |
345 | tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1); | |
346 | // | |
347 | tv10->AddNode(tv11,1); tv11->AddNode(tv12,1); | |
348 | // | |
349 | TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); | |
350 | // | |
351 | tv100->AddNode(tv10,1); | |
352 | tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); | |
353 | tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); | |
354 | tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); | |
355 | tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925)); | |
356 | tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85)); | |
357 | tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85)); | |
358 | // | |
359 | v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1)); | |
360 | v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1)); | |
361 | v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1); | |
362 | v9->AddNode(tv100,1); | |
363 | // | |
364 | // central drum | |
365 | // | |
366 | // flange + sandwich | |
367 | // | |
368 | TGeoPcon *cfl = new TGeoPcon(0.,360.,6); | |
369 | cfl->DefineSection(0,-71.1,59.7,61.2); | |
370 | cfl->DefineSection(1,-68.6,59.7,61.2); | |
371 | // | |
372 | cfl->DefineSection(2,-68.6,60.6324,61.2); | |
373 | cfl->DefineSection(3,68.6,60.6324,61.2); | |
374 | // | |
375 | cfl->DefineSection(4,68.6,59.7,61.2); | |
376 | cfl->DefineSection(5,71.1,59.7,61.2); | |
377 | // | |
378 | TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3); | |
379 | // sandwich | |
380 | TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1); | |
381 | TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1); | |
382 | TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1); | |
383 | // | |
384 | TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1"); | |
385 | TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar | |
386 | TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1 | |
387 | TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex | |
388 | // | |
389 | // seals for central drum 2 copies | |
390 | // | |
391 | TGeoTube *cs = new TGeoTube(56.9,61.2,0.1); | |
392 | TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar"); | |
393 | TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7); | |
394 | v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.)); | |
395 | v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.)); | |
396 | // | |
397 | // seal collars | |
398 | TGeoPcon *se = new TGeoPcon(0.,360.,6); | |
399 | se->DefineSection(0,-72.8,59.7,61.2); | |
400 | se->DefineSection(1,-72.3,59.7,61.2); | |
401 | // | |
402 | se->DefineSection(2,-72.3,58.85,61.2); | |
403 | se->DefineSection(3,-71.6,58.85,61.2); | |
404 | // | |
405 | se->DefineSection(4,-71.6,59.7,61.2); | |
406 | se->DefineSection(5,-71.3,59.7,61.2); | |
407 | // | |
408 | TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3); | |
409 | // | |
410 | TGeoTube *si = new TGeoTube(56.9,58.8,1.); | |
411 | TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3); | |
412 | // | |
413 | // define reflection matrix | |
414 | // | |
4fa47888 | 415 | TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.); |
c1637e41 | 416 | // |
417 | cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1); | |
418 | // | |
ae4806ca | 419 | v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-70.1)); |
420 | v1->AddNode(siv,2,new TGeoTranslation(0.,0.,70.1)); | |
c1637e41 | 421 | v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1); |
422 | // | |
423 | // central membrane - 2 rings and a mylar membrane - assembly | |
424 | // | |
425 | TGeoTube *ih = new TGeoTube(81.05,84.05,0.3); | |
426 | TGeoTube *oh = new TGeoTube(250.,256.,.5); | |
427 | TGeoTube *mem = new TGeoTube(84.05,250,0.01); | |
428 | TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3); | |
429 | TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3); | |
430 | TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7); | |
431 | // | |
432 | TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM"); | |
433 | cm->AddNode(ihv,1); | |
434 | cm->AddNode(ohv,1); | |
435 | cm->AddNode(memv,1); | |
436 | v9->AddNode(cm,1); | |
437 | // | |
438 | // end caps - they are make as an assembly of single segments | |
439 | // containing both readout chambers | |
440 | // | |
441 | Double_t OpeningAngle = 10.*TMath::DegToRad(); | |
442 | Double_t thick=1.5; // rib | |
443 | Double_t shift = thick/TMath::Sin(OpeningAngle); | |
444 | // | |
445 | Double_t LowEdge = 86.3; // hole in the wheel | |
446 | Double_t UpEdge = 240.4; // hole in the wheel | |
447 | // | |
448 | new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.); | |
449 | // | |
450 | TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4); | |
451 | // | |
452 | hole->DefineSection(0,-3.5,LowEdge-shift,UpEdge-shift); | |
453 | hole->DefineSection(1,-1.5,LowEdge-shift,UpEdge-shift); | |
454 | // | |
455 | hole->DefineSection(2,-1.5,LowEdge-shift,UpEdge+3.-shift); | |
456 | hole->DefineSection(3,3.5,LowEdge-shift,UpEdge+3.-shift); | |
457 | // | |
458 | Double_t ys = shift*TMath::Sin(OpeningAngle); | |
459 | Double_t xs = shift*TMath::Cos(OpeningAngle); | |
460 | TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.); | |
461 | tr->RegisterYourself(); | |
462 | TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr"); | |
463 | TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3); | |
464 | TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2); | |
465 | bar->DefineSection(0,-3.,131.5-shift,136.5-shift); | |
466 | bar->DefineSection(1,1.5,131.5-shift,136.5-shift); | |
467 | TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3); | |
468 | TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment | |
469 | // | |
470 | ch->AddNode(sv,1); ch->AddNode(barv,1,tr); | |
471 | // | |
472 | // readout chambers | |
473 | // | |
474 | // IROC first | |
475 | // | |
476 | TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15); | |
477 | TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3); | |
478 | // empty space | |
479 | TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65); | |
480 | TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1); | |
481 | ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.)); | |
482 | //bars | |
483 | Double_t tga = (19.8328-12.3742)/39.3; | |
484 | Double_t xmin,xmax; | |
485 | xmin = 9.55*tga+12.3742; | |
486 | xmax = 9.95*tga+12.3742; | |
487 | TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
488 | TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3); | |
489 | empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9)); | |
490 | xmin=19.4*tga+12.3742; | |
491 | xmax=19.9*tga+12.3742; | |
492 | TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25); | |
493 | TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3); | |
494 | empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.)); | |
495 | xmin=29.35*tga+12.3742; | |
496 | xmax=29.75*tga+12.3742; | |
497 | TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
498 | TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3); | |
499 | empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9)); | |
500 | // | |
501 | // holes for connectors | |
502 | // | |
503 | TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc | |
504 | TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1); | |
d9e80aca | 505 | TString fileName(gSystem->Getenv("ALICE_ROOT")); |
506 | fileName += "/TPC/conn_iroc.dat"; | |
c1637e41 | 507 | ifstream in; |
d9e80aca | 508 | in.open(fileName.Data(), ios_base::in); // asci file |
c1637e41 | 509 | for(Int_t i =0;i<86;i++){ |
456cb019 | 510 | Double_t y = 3.99; |
c1637e41 | 511 | Double_t x,z,ang; |
512 | in>>x>>z>>ang; | |
456cb019 | 513 | z-=26.5; |
c1637e41 | 514 | TGeoRotation *rrr = new TGeoRotation(); |
515 | rrr->RotateY(ang); | |
516 | TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr); | |
517 | ibdv->AddNode(connv,i+1,trans); | |
518 | } | |
519 | in.close(); | |
520 | // "cap" | |
521 | new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825); | |
522 | // "hole" | |
523 | new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15); | |
524 | TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725); | |
525 | tr1->RegisterYourself(); | |
526 | TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1"); | |
527 | TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3); | |
528 | // | |
529 | // pad plane and wire fixations | |
530 | // | |
531 | TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso | |
532 | TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10"); | |
533 | TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4); | |
534 | TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.); | |
535 | TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4); | |
536 | TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.); | |
537 | TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4); | |
538 | // | |
539 | TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC"); | |
540 | // | |
541 | iroc->AddNode(ibdv,1); | |
542 | iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725)); | |
543 | iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725)); | |
544 | tga =(23.3521-14.5974)/49.65; | |
545 | Double_t xx = 24.825*tga+14.5974-0.6; | |
546 | iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725)); | |
547 | iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725)); | |
548 | // | |
549 | // OROC | |
550 | // | |
551 | TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65); | |
552 | TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3); | |
553 | TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65); | |
554 | TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1); | |
555 | obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.)); | |
556 | //horizontal bars | |
557 | tga=(38.5084-20.2938)/99.3; | |
558 | xmin=tga*10.2+20.2938; | |
559 | xmax=tga*10.6+20.2938; | |
560 | TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
561 | TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3); | |
562 | // | |
563 | xmin=22.55*tga+20.2938; | |
564 | xmax=24.15*tga+20.2938; | |
565 | TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
566 | TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3); | |
567 | // | |
568 | xmin=36.1*tga+20.2938; | |
569 | xmax=36.5*tga+20.2938; | |
570 | TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
571 | TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3); | |
572 | // | |
573 | xmin=49.0*tga+20.2938; | |
574 | xmax=50.6*tga+20.2938; | |
575 | TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
576 | TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3); | |
577 | // | |
578 | xmin=63.6*tga+20.2938; | |
579 | xmax=64.0*tga+20.2938; | |
580 | TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
581 | TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3); | |
582 | // | |
583 | xmin=75.5*tga+20.2938; | |
584 | xmax=77.15*tga+20.2938; | |
585 | TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
586 | TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3); | |
587 | // | |
588 | xmin=88.7*tga+20.2938; | |
589 | xmax=89.1*tga+20.2938; | |
590 | TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
591 | TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3); | |
592 | // | |
593 | oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25)); | |
594 | oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3)); | |
595 | oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35)); | |
596 | oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15)); | |
597 | oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15)); | |
598 | oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7)); | |
599 | oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25)); | |
600 | // vertical bars | |
601 | TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1); | |
602 | TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975); | |
603 | TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775); | |
604 | TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25); | |
605 | TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5); | |
606 | // | |
607 | TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3); | |
608 | TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3); | |
609 | TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3); | |
610 | TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3); | |
611 | TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3); | |
612 | // | |
613 | oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55)); | |
614 | oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55)); | |
615 | oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075)); | |
616 | oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525)); | |
617 | oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125)); | |
618 | oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275)); | |
619 | oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9)); | |
620 | oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45)); | |
621 | // | |
622 | // holes for connectors | |
623 | // | |
d9e80aca | 624 | fileName = gSystem->Getenv("ALICE_ROOT"); |
625 | fileName += "/TPC/conn_oroc.dat"; | |
626 | in.open(fileName.Data(), ios_base::in); // asci file | |
c1637e41 | 627 | for(Int_t i =0;i<78;i++){ |
628 | Double_t y =3.89; | |
629 | Double_t x,z,ang; | |
630 | Double_t x1,z1,x2,z2; | |
631 | in>>x>>z>>ang; | |
632 | Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad()); | |
633 | Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad()); | |
634 | // | |
635 | x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z; | |
636 | // | |
637 | TGeoRotation *rr = new TGeoRotation(); | |
638 | rr->RotateY(ang); | |
639 | z1-=54.95; | |
640 | z2-=54.95; | |
641 | TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr); | |
642 | TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr); | |
643 | obdv->AddNode(connv,i+1,trans1); | |
644 | obdv->AddNode(connv,i+79,trans2); | |
645 | } | |
646 | in.close(); | |
647 | // cap | |
648 | new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1); | |
649 | new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65); | |
650 | TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15); | |
651 | tr5->RegisterYourself(); | |
652 | TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5"); | |
653 | TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3); | |
654 | // | |
655 | // pad plane and wire fixations | |
656 | // | |
657 | TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1); | |
658 | TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4); | |
659 | // | |
660 | tga=(43.5239-23.3874)/114.2; | |
661 | TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.); | |
662 | TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.); | |
663 | xx = 57.1*tga+23.3874-0.7; | |
664 | TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4); | |
665 | TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4); | |
666 | // | |
667 | TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC"); | |
668 | // | |
669 | oroc->AddNode(obdv,1); | |
670 | oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15)); | |
671 | oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15)); | |
672 | oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15)); | |
673 | oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15)); | |
674 | // | |
675 | // now iroc and oroc are placed into a sector... | |
676 | // | |
677 | TGeoVolumeAssembly *sect = new TGeoVolumeAssembly("TPC_SECT"); | |
678 | TGeoRotation rot1("rot1",90.,90.,0.); | |
679 | TGeoRotation rot2("rot2"); | |
680 | rot2.RotateY(10.); | |
681 | TGeoRotation *rot = new TGeoRotation("rot"); | |
682 | *rot=rot1*rot2; | |
683 | // | |
684 | Double_t x0,y0; | |
685 | x0=110.2*TMath::Cos(OpeningAngle); | |
686 | y0=110.2*TMath::Sin(OpeningAngle); | |
687 | TGeoCombiTrans *combi1 = new TGeoCombiTrans("combi1",x0,y0,1.09,rot); | |
688 | x0=188.45*TMath::Cos(OpeningAngle); | |
689 | y0=188.45*TMath::Sin(OpeningAngle); | |
690 | TGeoCombiTrans *combi2 = new TGeoCombiTrans("combi2",x0,y0,0.99,rot); | |
691 | // | |
692 | sect->AddNode(ch,1); | |
693 | sect->AddNode(iroc,1,combi1); | |
694 | sect->AddNode(oroc,1,combi2); | |
695 | // | |
696 | // segment is ready... | |
697 | // now I try to make a wheel... | |
698 | // | |
699 | TGeoVolumeAssembly *wheel = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
700 | // | |
701 | for(Int_t i =0;i<18;i++){ | |
702 | Double_t phi = (20.*i); | |
703 | TGeoRotation *r = new TGeoRotation(); | |
704 | r->RotateZ(phi); | |
705 | wheel->AddNode(sect,i+1,r); | |
79575d04 | 706 | |
c1637e41 | 707 | } |
4fa47888 | 708 | // wheels in the drift volume! |
c1637e41 | 709 | TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref); |
4fa47888 | 710 | v9->AddNode(wheel,1,combi3); |
711 | v9->AddNode(wheel,2,new TGeoTranslation(0.,0.,-256.6)); | |
c1637e41 | 712 | //_____________________________________________________________ |
713 | // service support wheel | |
714 | //_____________________________________________________________ | |
715 | TGeoPgon *sw = new TGeoPgon(0.,20.,1,2); | |
716 | sw->DefineSection(0,-4.,80.5,251.75); | |
717 | sw->DefineSection(1,4.,80.5,251.75); | |
718 | TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al | |
719 | // | |
720 | thick=1.; | |
721 | shift = thick/TMath::Sin(OpeningAngle); | |
722 | TGeoPgon *sh = new TGeoPgon(0.,20.,1,2); | |
723 | sh->DefineSection(0,-4.,81.5-shift,250.75-shift); | |
724 | sh->DefineSection(1,4.,81.5-shift,250.75-shift); | |
725 | TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air | |
726 | // | |
74518339 | 727 | TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si"); |
728 | TGeoPgon *el = new TGeoPgon(0.,20.,1,2); | |
729 | el->DefineSection(0,-1.872,81.5-shift,250.75-shift); | |
730 | el->DefineSection(1,1.872,81.5-shift,250.75-shift); | |
731 | TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si | |
732 | // | |
733 | shv->AddNode(elv,1); | |
734 | // | |
735 | // | |
c1637e41 | 736 | ys = shift*TMath::Sin(OpeningAngle); |
737 | xs = shift*TMath::Cos(OpeningAngle); | |
738 | swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.)); | |
739 | // cover | |
740 | TGeoPgon *co = new TGeoPgon(0.,20.,1,2); | |
741 | co->DefineSection(0,-0.5,77.,255.25); | |
742 | co->DefineSection(1,0.5,77.,255.25); | |
743 | TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al | |
744 | // hole in a cover | |
745 | TGeoPgon *coh = new TGeoPgon(0.,20.,1,2); | |
746 | shift=4./TMath::Sin(OpeningAngle); | |
747 | coh->DefineSection(0,-0.5,85.-shift,247.25-shift); | |
748 | coh->DefineSection(1,0.5,85.-shift,247.25-shift); | |
749 | // | |
750 | TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1); | |
751 | // | |
752 | ys = shift*TMath::Sin(OpeningAngle); | |
753 | xs = shift*TMath::Cos(OpeningAngle); | |
754 | cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.)); | |
755 | // | |
756 | // Sector as an Assembly | |
757 | // | |
758 | TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC"); | |
759 | swhs->AddNode(swv,1); | |
760 | swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5)); | |
761 | swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5)); | |
762 | // | |
763 | // SSW as an Assembly of sectors | |
764 | // | |
765 | TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL"); | |
766 | for(Int_t i =0;i<18;i++){ | |
767 | Double_t phi = (20.*i); | |
768 | TGeoRotation *r = new TGeoRotation(); | |
769 | r->RotateZ(phi); | |
770 | swheel->AddNode(swhs,i+1,r); | |
771 | } | |
772 | v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6)); | |
773 | v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6)); | |
774 | ||
775 | // sensitive strips - strip "0" is always set | |
776 | // conditional | |
777 | Int_t totrows; | |
778 | totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp(); | |
779 | Double_t *upar; | |
780 | upar=NULL; | |
781 | gGeoManager->Volume("TPC_Strip","PGON",m5->GetId(),upar); | |
782 | upar=new Double_t [10]; | |
783 | upar[0]=0.; | |
784 | upar[1]=360.; | |
785 | upar[2]=18.; | |
786 | upar[3]=2.; | |
787 | // | |
788 | upar[4]=-124.8; | |
789 | upar[7]=124.8; | |
790 | ||
791 | Double_t rlow=fTPCParam->GetPadRowRadiiLow(0); | |
792 | ||
793 | upar[5]=rlow; | |
794 | upar[6]=rlow+.01; | |
795 | upar[8]=upar[5]; | |
796 | upar[9]=upar[6]; | |
797 | // | |
798 | gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
799 | gGeoManager->Node("TPC_Strip",totrows+1, | |
800 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
801 | // | |
802 | // now, strips optionally | |
803 | // | |
804 | if(fSens){ | |
805 | //lower sectors | |
806 | for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){ | |
807 | rlow=fTPCParam->GetPadRowRadiiLow(i-1); | |
808 | upar[5]=rlow; | |
809 | upar[6]=rlow+.01; | |
810 | upar[8]=upar[5]; | |
811 | upar[9]=upar[6]; | |
812 | gGeoManager->Node("TPC_Strip",i, | |
813 | "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
814 | gGeoManager->Node("TPC_Strip",totrows+i, | |
815 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
816 | } | |
817 | //upper sectors | |
818 | for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){ | |
819 | rlow=fTPCParam->GetPadRowRadiiUp(i-1); | |
820 | upar[5]=rlow; | |
821 | upar[6]=rlow+.01; | |
822 | upar[8]=upar[5]; | |
823 | upar[9]=upar[6]; | |
824 | gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(), | |
825 | "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
826 | gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(), | |
827 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
828 | } | |
829 | }//strips | |
37831078 | 830 | //---------------------------------------------------------- |
c1637e41 | 831 | // TPc Support Rods - MAKROLON |
37831078 | 832 | //---------------------------------------------------------- |
c1637e41 | 833 | TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon"); |
834 | TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu"); | |
835 | // upper and lower rods differ in length! | |
836 | delete [] upar; | |
837 | upar=NULL; | |
838 | gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar); | |
839 | upar=new Double_t [3]; | |
840 | upar[0]=1.8; | |
841 | upar[1]=2.2; | |
842 | ||
79575d04 | 843 | // |
c1637e41 | 844 | //HV rods - makrolon + 0.58cm (diameter) Cu |
ae4806ca | 845 | TGeoTube *hvr = new TGeoTube(0.,2.2,126.64); |
c1637e41 | 846 | TGeoTube *hvc = new TGeoTube(0.,0.29,126.64); |
847 | // | |
848 | TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6); | |
849 | TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7); | |
850 | hvrv->AddNode(hvcv,1); | |
851 | ||
7281dc07 | 852 | for(Int_t i=0;i<18;i++){ |
c1637e41 | 853 | Double_t angle,x,y; |
854 | Double_t z,r; | |
855 | angle=TMath::DegToRad()*20.*(Double_t)i; | |
856 | r=81.5; | |
857 | x=r * TMath::Cos(angle); | |
858 | y=r * TMath::Sin(angle); | |
859 | upar[2]=126.64; //lower | |
860 | z= 126.96; | |
861 | if(i==15){ | |
862 | v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z)); | |
863 | v9->AddNode(hvrv,2,new TGeoTranslation(x,y,-z)); | |
864 | } | |
865 | else{ | |
866 | gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft | |
0079eac0 | 867 | gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon |
c1637e41 | 868 | } |
869 | r=254.25; | |
870 | x=r * TMath::Cos(angle); | |
871 | y=r * TMath::Sin(angle); | |
872 | upar[2]=126.54; //upper | |
873 | z=127.06; | |
0079eac0 | 874 | gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3); |
875 | gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); | |
c1637e41 | 876 | } |
79575d04 | 877 | |
bde68ab0 | 878 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); |
879 | alice->AddNode(v1,1); | |
c1637e41 | 880 | |
37831078 | 881 | |
882 | } // end of function | |
883 | ||
884 | //_____________________________________________________________________________ | |
885 | void AliTPCv2::DrawDetector() | |
886 | { | |
887 | // | |
888 | // Draw a shaded view of the Time Projection Chamber version 1 | |
889 | // | |
890 | ||
891 | // Set everything unseen | |
892 | gMC->Gsatt("*", "seen", -1); | |
893 | // | |
894 | // Set ALIC mother transparent | |
895 | gMC->Gsatt("ALIC","SEEN",0); | |
896 | // | |
897 | // Set the volumes visible | |
898 | // | |
899 | ||
900 | gMC->Gsatt("TPC ","SEEN",0); | |
901 | gMC->Gsatt("TOIN","SEEN",1); | |
902 | gMC->Gsatt("TOIN","COLO",7); | |
37831078 | 903 | gMC->Gsatt("TOCV","SEEN",1); |
904 | gMC->Gsatt("TOCV","COLO",4); | |
905 | gMC->Gsatt("TSA1","SEEN",0); | |
906 | gMC->Gsatt("TSA2","SEEN",0); | |
907 | gMC->Gsatt("TSA3","SEEN",0); | |
79575d04 | 908 | gMC->Gsatt("TSA4","SEEN",0); |
909 | gMC->Gsatt("TSA5","SEEN",0); | |
37831078 | 910 | gMC->Gsatt("TOFC","SEEN",1); |
911 | gMC->Gsatt("TOFC","COLO",4); | |
37831078 | 912 | gMC->Gsatt("TSA6","SEEN",0); |
913 | gMC->Gsatt("TSA7","SEEN",0); | |
79575d04 | 914 | gMC->Gsatt("TSA8","SEEN",0); |
37831078 | 915 | gMC->Gsatt("TIIN","SEEN",1); |
79575d04 | 916 | gMC->Gsatt("TIIN","COLO",7); |
917 | gMC->Gsatt("TII1","SEEN",0); | |
918 | gMC->Gsatt("TIFC","SEEN",1); | |
919 | gMC->Gsatt("TIFC","COLO",4); | |
920 | gMC->Gsatt("TSA9","SEEN",0); | |
37831078 | 921 | gMC->Gsatt("TS10","SEEN",0); |
922 | gMC->Gsatt("TS11","SEEN",0); | |
923 | gMC->Gsatt("TS12","SEEN",0); | |
37831078 | 924 | gMC->Gsatt("TS13","SEEN",0); |
925 | gMC->Gsatt("TS14","SEEN",0); | |
79575d04 | 926 | gMC->Gsatt("TICC","SEEN",0); |
927 | gMC->Gsatt("TICM","SEEN",0); | |
37831078 | 928 | gMC->Gsatt("TS15","SEEN",0); |
929 | gMC->Gsatt("TS16","SEEN",0); | |
37831078 | 930 | gMC->Gsatt("TS17","SEEN",0); |
79575d04 | 931 | gMC->Gsatt("TS18","SEEN",0); |
932 | gMC->Gsatt("TS19","SEEN",0); | |
933 | gMC->Gsatt("TPJ1","SEEN",0); | |
934 | gMC->Gsatt("TPJ2","SEEN",0); | |
935 | gMC->Gsatt("TICS","SEEN",0); | |
936 | gMC->Gsatt("TDGN","SEEN",0); | |
37831078 | 937 | gMC->Gsatt("TIRC","SEEN",0); |
938 | gMC->Gsatt("TIC1","SEEN",1); | |
939 | gMC->Gsatt("TIPP","SEEN",0); | |
940 | gMC->Gsatt("TIC3","SEEN",0); | |
941 | gMC->Gsatt("TRCE","SEEN",0); | |
942 | gMC->Gsatt("TPSC","SEEN",0); | |
79575d04 | 943 | gMC->Gsatt("TPCC","SEEN",0); |
37831078 | 944 | gMC->Gsatt("TORC","SEEN",0); |
945 | gMC->Gsatt("TOPP","SEEN",0); | |
946 | gMC->Gsatt("TOC3","SEEN",0); | |
947 | gMC->Gsatt("TOC1","SEEN",1); | |
948 | gMC->Gsatt("TSSW","SEEN",1); | |
949 | gMC->Gsatt("TSWC","SEEN",1); | |
37831078 | 950 | gMC->Gsatt("TSSW","COLO",3); |
951 | gMC->Gsatt("TSWC","COLO",3); | |
952 | gMC->Gsatt("TSCE","COLO",6); | |
79575d04 | 953 | gMC->Gsatt("TSCE","SEEN",1); |
37831078 | 954 | gMC->Gsatt("TWES","SEEN",0); |
955 | gMC->Gsatt("TSWB","SEEN",0); | |
956 | gMC->Gsatt("TPEL","SEEN",0); | |
957 | gMC->Gsatt("TPMW","SEEN",1); | |
37831078 | 958 | gMC->Gsatt("TESR","SEEN",1); |
959 | gMC->Gsatt("TPMW","COLO",12); | |
37831078 | 960 | gMC->Gsatt("TIC1","COLO",5); |
79575d04 | 961 | gMC->Gsatt("TOC1","COLO",5); |
37831078 | 962 | gMC->Gsatt("TESB","SEEN",0); |
37831078 | 963 | gMC->Gsatt("THVM","SEEN",1); |
964 | gMC->Gsatt("THVM","COLO",11); | |
79575d04 | 965 | gMC->Gsatt("THVH","SEEN",0); |
966 | gMC->Gsatt("TPSR","SEEN",0); | |
37831078 | 967 | gMC->Gsatt("THVL","SEEN",0); |
79575d04 | 968 | gMC->Gsatt("THVC","SEEN",0); |
37831078 | 969 | gMC->Gsatt("THVE","SEEN",0); |
970 | gMC->Gsatt("THVR","SEEN",0); | |
79575d04 | 971 | gMC->Gsatt("TPSS","SEEN",0); |
972 | gMC->Gsatt("TPUS","SEEN",0); | |
973 | gMC->Gsatt("TPLS","SEEN",0); | |
37831078 | 974 | |
975 | // | |
976 | gMC->Gdopt("hide", "on"); | |
977 | gMC->Gdopt("shad", "on"); | |
978 | gMC->Gsatt("*", "fill", 7); | |
979 | gMC->SetClipBox("."); | |
980 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
981 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
982 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
983 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
984 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
985 | gMC->DefaultRange(); | |
986 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
987 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
988 | gMC->Gdman(18, 4, "MAN"); | |
989 | gMC->Gdopt("hide","off"); | |
990 | } | |
991 | ||
992 | //_____________________________________________________________________________ | |
993 | void AliTPCv2::CreateMaterials() | |
994 | { | |
995 | // | |
996 | // Define materials for version 2 of the Time Projection Chamber | |
997 | // | |
998 | ||
999 | AliTPC::CreateMaterials(); | |
1000 | } | |
1001 | ||
1002 | //_____________________________________________________________________________ | |
1003 | void AliTPCv2::Init() | |
1004 | { | |
1005 | // | |
1006 | // Initialises version 2 of the TPC after that it has been built | |
1007 | // | |
1008 | ||
1009 | Int_t *idtmed = fIdtmed->GetArray(); | |
1010 | ||
1011 | AliTPC::Init(); | |
d4c354b9 | 1012 | |
c1637e41 | 1013 | |
1014 | fIdSens=gMC->VolId("TPC_Strip"); // one strip is always selected... | |
d4c354b9 | 1015 | |
c1637e41 | 1016 | fIDrift=gMC->VolId("TPC_Drift"); |
1017 | fSecOld=-100; // fake number | |
37831078 | 1018 | |
1019 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
1020 | ||
1021 | gMC->Gstpar(idtmed[2],"LOSS",5); // specific energy loss | |
1022 | ||
f77f13c8 | 1023 | AliInfo("*** TPC version 2 initialized ***"); |
1024 | AliInfo(Form("Maximum number of steps = %d",gMC->GetMaxNStep())); | |
37831078 | 1025 | |
1026 | // | |
fe4da5cc | 1027 | |
1028 | } | |
1029 | ||
1030 | //_____________________________________________________________________________ | |
1031 | void AliTPCv2::StepManager() | |
1032 | { | |
1033 | // | |
1034 | // Called for every step in the Time Projection Chamber | |
1035 | // | |
1036 | ||
1037 | // | |
1038 | // parameters used for the energy loss calculations | |
1039 | // | |
73042f01 | 1040 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
1041 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
1042 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
fe4da5cc | 1043 | |
1044 | ||
73042f01 | 1045 | const Float_t kbig = 1.e10; |
fe4da5cc | 1046 | |
1047 | Int_t id,copy; | |
e61fd20d | 1048 | Float_t hits[5]; |
fe4da5cc | 1049 | Int_t vol[2]; |
37831078 | 1050 | TLorentzVector p; |
fe4da5cc | 1051 | |
37831078 | 1052 | vol[1]=0; // preset row number to 0 |
fe4da5cc | 1053 | // |
73042f01 | 1054 | gMC->SetMaxStep(kbig); |
fe4da5cc | 1055 | |
0a6d8768 | 1056 | if(!gMC->IsTrackAlive()) return; // particle has disappeared |
fe4da5cc | 1057 | |
cfce8870 | 1058 | Float_t charge = gMC->TrackCharge(); |
fe4da5cc | 1059 | |
1060 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1061 | ||
37831078 | 1062 | // check the sensitive volume |
1063 | ||
c1637e41 | 1064 | id = gMC->CurrentVolID(copy); // vol ID and copy number (starts from 1!) |
1065 | if(id != fIDrift && id != fIdSens) return; // not in the sensitive folume | |
da33556f | 1066 | |
c1637e41 | 1067 | gMC->TrackPosition(p); |
1068 | Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
1069 | // | |
1070 | ||
1071 | // | |
1072 | Double_t angle = TMath::ACos(p[0]/r); | |
1073 | angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle; | |
1074 | // | |
1075 | // angular segment, it is not a real sector number... | |
1076 | // | |
1077 | Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/ | |
1078 | fTPCParam->GetInnerAngle()); | |
1079 | // rotate to segment "0" | |
1080 | Float_t cos,sin; | |
1081 | fTPCParam->AdjustCosSin(sector,cos,sin); | |
1082 | Float_t x1=p[0]*cos + p[1]*sin; | |
1083 | // check if within sector's limits | |
1084 | if(x1>=fTPCParam->GetInnerRadiusLow()&&x1<=fTPCParam->GetInnerRadiusUp() | |
1085 | ||x1>=fTPCParam->GetOuterRadiusLow()&&x1<=fTPCParam->GetOuterRadiusUp()){ | |
1086 | // calculate real sector number... | |
1087 | if (x1>fTPCParam->GetOuterRadiusLow()){ | |
1088 | sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/ | |
1089 | fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector(); | |
1090 | if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1); | |
37831078 | 1091 | } |
c1637e41 | 1092 | else |
1093 | if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1); | |
1094 | // | |
1095 | // here I have a sector number | |
1096 | // | |
37831078 | 1097 | |
c1637e41 | 1098 | vol[0]=sector; |
1099 | // check if change of sector | |
1100 | if(sector != fSecOld){ | |
1101 | fSecOld=sector; | |
1102 | // add track reference | |
1103 | AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber()); | |
1104 | } | |
1105 | // track is in the sensitive strip | |
1106 | if(id == fIdSens){ | |
1107 | // track is entering the strip | |
1108 | if (gMC->IsTrackEntering()){ | |
1109 | Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp(); | |
1110 | vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows; | |
1111 | // row numbers are autonomous for lower and upper sectors | |
1112 | if(vol[0] > fTPCParam->GetNInnerSector()) { | |
1113 | vol[1] -= fTPCParam->GetNRowLow(); | |
1114 | } | |
1115 | // | |
1116 | if(vol[0]<fTPCParam->GetNInnerSector()&&vol[1] == 0){ | |
37831078 | 1117 | |
c1637e41 | 1118 | // lower sector, row 0, because Jouri wants to have this |
37831078 | 1119 | |
c1637e41 | 1120 | gMC->TrackMomentum(p); |
1121 | hits[0]=p[0]; | |
1122 | hits[1]=p[1]; | |
1123 | hits[2]=p[2]; | |
1124 | hits[3]=0.; // this hit has no energy loss | |
1125 | // Get also the track time for pileup simulation | |
1126 | hits[4]=gMC->TrackTime(); | |
6a905708 | 1127 | |
c1637e41 | 1128 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); |
1129 | } | |
1130 | // | |
e61fd20d | 1131 | |
c1637e41 | 1132 | gMC->TrackPosition(p); |
1133 | hits[0]=p[0]; | |
1134 | hits[1]=p[1]; | |
1135 | hits[2]=p[2]; | |
1136 | hits[3]=0.; // this hit has no energy loss | |
1137 | // Get also the track time for pileup simulation | |
1138 | hits[4]=gMC->TrackTime(); | |
930ee558 | 1139 | |
c1637e41 | 1140 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); |
37831078 | 1141 | |
c1637e41 | 1142 | } |
1143 | else return; | |
1144 | } | |
37831078 | 1145 | //----------------------------------------------------------------- |
c1637e41 | 1146 | // charged particle is in the sensitive drift volume |
37831078 | 1147 | //----------------------------------------------------------------- |
cfce8870 | 1148 | if(gMC->TrackStep() > 0) { |
c1637e41 | 1149 | |
73042f01 | 1150 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
fe4da5cc | 1151 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
c1637e41 | 1152 | // |
37831078 | 1153 | gMC->TrackPosition(p); |
1154 | hits[0]=p[0]; | |
1155 | hits[1]=p[1]; | |
1156 | hits[2]=p[2]; | |
fe4da5cc | 1157 | hits[3]=(Float_t)nel; |
c1637e41 | 1158 | |
fe4da5cc | 1159 | // Add this hit |
c1637e41 | 1160 | |
6a905708 | 1161 | if (fHitType&&2){ |
1162 | gMC->TrackMomentum(p); | |
1163 | Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
1164 | Float_t precision = (momentum>0.1) ? 0.002 :0.01; | |
1165 | fTrackHits->SetHitPrecision(precision); | |
1166 | } | |
e61fd20d | 1167 | |
1168 | // Get also the track time for pileup simulation | |
1169 | hits[4]=gMC->TrackTime(); | |
c1637e41 | 1170 | |
1171 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); | |
e61fd20d | 1172 | |
c1637e41 | 1173 | } // step>0 |
1174 | } //within sector's limits | |
fe4da5cc | 1175 | // Stemax calculation for the next step |
1176 | ||
1177 | Float_t pp; | |
0a6d8768 | 1178 | TLorentzVector mom; |
1179 | gMC->TrackMomentum(mom); | |
1180 | Float_t ptot=mom.Rho(); | |
73042f01 | 1181 | Float_t betaGamma = ptot/gMC->TrackMass(); |
fe4da5cc | 1182 | |
69e40cce | 1183 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 1184 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
fe4da5cc | 1185 | { |
73042f01 | 1186 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
fe4da5cc | 1187 | } |
1188 | else | |
1189 | { | |
595bf2c3 | 1190 | |
07521998 | 1191 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg |
595bf2c3 | 1192 | pp=kprim*BetheBloch(betaGamma); |
1193 | ||
fe4da5cc | 1194 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
1195 | } | |
1196 | ||
b9d0a01d | 1197 | Double_t rnd = gMC->GetRandom()->Rndm(); |
fe4da5cc | 1198 | |
cfce8870 | 1199 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); |
fe4da5cc | 1200 | |
c1637e41 | 1201 | |
fe4da5cc | 1202 | } |
1203 | ||
1204 | //_____________________________________________________________________________ | |
1205 | Float_t AliTPCv2::BetheBloch(Float_t bg) | |
1206 | { | |
1207 | // | |
1208 | // Bethe-Bloch energy loss formula | |
1209 | // | |
73042f01 | 1210 | const Double_t kp1=0.76176e-1; |
1211 | const Double_t kp2=10.632; | |
1212 | const Double_t kp3=0.13279e-4; | |
1213 | const Double_t kp4=1.8631; | |
1214 | const Double_t kp5=1.9479; | |
fe4da5cc | 1215 | |
1216 | Double_t dbg = (Double_t) bg; | |
1217 | ||
1218 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
1219 | ||
73042f01 | 1220 | Double_t aa = TMath::Power(beta,kp4); |
1221 | Double_t bb = TMath::Power(1./dbg,kp5); | |
fe4da5cc | 1222 | |
73042f01 | 1223 | bb=TMath::Log(kp3+bb); |
fe4da5cc | 1224 | |
73042f01 | 1225 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
fe4da5cc | 1226 | } |
73042f01 | 1227 | |
1228 |