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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 | // |
4b0fdcad | 19 | /////////////////////////////////////////////////////////////////////////////// |
20 | // // | |
21 | // Time Projection Chamber version 3 -- detailed TPC and slow simulation // | |
37831078 | 22 | // |
4b0fdcad | 23 | //Begin_Html |
24 | /* | |
25 | <img src="picts/AliTPCv3Class.gif"> | |
26 | */ | |
27 | //End_Html | |
28 | // // | |
29 | // // | |
30 | /////////////////////////////////////////////////////////////////////////////// | |
31 | ||
32 | #include <stdlib.h> | |
116cbefd | 33 | |
116cbefd | 34 | #include <TInterpreter.h> |
88cb7938 | 35 | #include <TLorentzVector.h> |
4b0fdcad | 36 | #include <TMath.h> |
88cb7938 | 37 | #include <TVirtualMC.h> |
38 | #include <TPDGCode.h> | |
d9e80aca | 39 | #include <TString.h> |
40 | #include <TSystem.h> | |
116cbefd | 41 | |
4b0fdcad | 42 | #include "AliConst.h" |
116cbefd | 43 | #include "AliRun.h" |
b40afa5e | 44 | #include "AliMathBase.h" |
cc80f89e | 45 | #include "AliTPCDigitsArray.h" |
4c475d27 | 46 | #include "AliTPCParam.h" |
47 | #include "AliTPCParamSR.h" | |
4ed5dced | 48 | #include "AliTPCTrackHitsV2.h" |
116cbefd | 49 | #include "AliTPCv3.h" |
5d12ce38 | 50 | #include "AliMC.h" |
c1637e41 | 51 | #include "TGeoManager.h" |
52 | #include "TGeoVolume.h" | |
53 | #include "TGeoPcon.h" | |
54 | #include "TGeoTube.h" | |
55 | #include "TGeoPgon.h" | |
56 | #include "TGeoTrd1.h" | |
57 | #include "TGeoCompositeShape.h" | |
58 | #include "TGeoPara.h" | |
4b0fdcad | 59 | |
60 | ClassImp(AliTPCv3) | |
79575d04 | 61 | //_____________________________________________________________________________ |
62 | ||
179c6296 | 63 | AliTPCv3::AliTPCv3():AliTPC(),fIdSens(0) |
64 | { | |
79575d04 | 65 | |
66 | fHitType = 1; | |
67 | ||
68 | } | |
69 | ||
4b0fdcad | 70 | //_____________________________________________________________________________ |
71 | AliTPCv3::AliTPCv3(const char *name, const char *title) : | |
179c6296 | 72 | AliTPC(name, title), fIdSens(0) |
4b0fdcad | 73 | { |
74 | // | |
cc80f89e | 75 | // Standard constructor for Time Projection Chamber version 3 |
4b0fdcad | 76 | // |
77 | ||
78 | SetBufferSize(128000); | |
73042f01 | 79 | |
80 | if (fTPCParam) | |
81 | fTPCParam->Write(fTPCParam->GetTitle()); | |
79575d04 | 82 | |
83 | fHitType =1; | |
4b0fdcad | 84 | } |
85 | ||
86 | //_____________________________________________________________________________ | |
87 | void AliTPCv3::CreateGeometry() | |
88 | { | |
89 | // | |
cc80f89e | 90 | // Creation of the TPC coarse geometry (version 3) |
37831078 | 91 | // The whole drift volume is sensitive |
cc80f89e | 92 | // Origin Marek Kowalski Cracow |
4b0fdcad | 93 | // |
94 | //Begin_Html | |
95 | /* | |
37831078 | 96 | <img src="picts/AliTPCgif"> |
4b0fdcad | 97 | */ |
98 | //End_Html | |
99 | //Begin_Html | |
100 | /* | |
37831078 | 101 | <img src="picts/AliTPCv3Tree.gif"> |
4b0fdcad | 102 | */ |
103 | //End_Html | |
c1637e41 | 104 | //---------------------------------------------------------- |
105 | // This geometry is written using TGeo class | |
106 | // Firstly the shapes are defined, and only then the volumes | |
107 | // What is recognized by the MC are volumes | |
108 | //---------------------------------------------------------- | |
37831078 | 109 | // |
c1637e41 | 110 | // tpc - this will be the mother volume |
37831078 | 111 | // |
1283eee5 | 112 | |
37831078 | 113 | // |
c1637e41 | 114 | // here I define a volume TPC |
115 | // retrive the medium name with "TPC_" as a leading string | |
4b0fdcad | 116 | // |
4fb9bd37 | 117 | TGeoPcon *tpc = new TGeoPcon(0.,360.,28); //28 sections |
4b0fdcad | 118 | // |
78134e48 | 119 | tpc->DefineSection(0,-291.,77.,278.); |
120 | tpc->DefineSection(1,-270,77.,278.); | |
4b0fdcad | 121 | // |
78134e48 | 122 | tpc->DefineSection(2,-270.,77.,278.); |
4fb9bd37 | 123 | tpc->DefineSection(3,-262.1,77.,278.); |
4b0fdcad | 124 | // |
4fb9bd37 | 125 | tpc->DefineSection(4,-262.1,83.1,278.); |
126 | tpc->DefineSection(5,-260.,83.1,278.); | |
4b0fdcad | 127 | // |
4fb9bd37 | 128 | tpc->DefineSection(6,-260.,70.,278.); |
129 | tpc->DefineSection(7,-259.6,70.,278.); | |
37831078 | 130 | // |
4fb9bd37 | 131 | tpc->DefineSection(8,-259.6,68.1,278.); |
132 | tpc->DefineSection(9,-253.6,68.1,278.); | |
37831078 | 133 | // |
4fb9bd37 | 134 | tpc->DefineSection(10,-253.6,68.,278.); |
135 | tpc->DefineSection(11,-74.0,60.8,278.); | |
79575d04 | 136 | // |
4fb9bd37 | 137 | tpc->DefineSection(12,-74.0,60.1,278.); |
138 | tpc->DefineSection(13,-73.3,60.1,278.); | |
c1637e41 | 139 | // |
4fb9bd37 | 140 | tpc->DefineSection(14,-73.3,56.9,278.); |
141 | tpc->DefineSection(15,-68.5,56.9,278.); | |
78134e48 | 142 | // |
4fb9bd37 | 143 | tpc->DefineSection(16,-68.5,60.,278.); |
144 | tpc->DefineSection(17,-65.,60.,278.); | |
78134e48 | 145 | // |
4fb9bd37 | 146 | tpc->DefineSection(18,-65.,56.9,278.); |
147 | tpc->DefineSection(19,73.3,56.9,278.); | |
148 | // | |
149 | tpc->DefineSection(20,73.3,60.1,278.); | |
150 | tpc->DefineSection(21,74.0,60.1,278.); | |
151 | // | |
152 | tpc->DefineSection(22,74.0,60.8,278.); | |
153 | tpc->DefineSection(23,253.6,65.5,278.); | |
154 | // | |
155 | tpc->DefineSection(24,253.6,65.6,278.); | |
156 | tpc->DefineSection(25,259.6,65.6,278.); | |
157 | // | |
158 | tpc->DefineSection(26,259.6,70.0,278.); | |
159 | tpc->DefineSection(27,291.,77.,278.); | |
c1637e41 | 160 | // |
161 | TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air"); | |
162 | TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1); | |
163 | // | |
164 | // drift volume - sensitive volume, extended beyond the | |
165 | // endcaps, because of the alignment | |
166 | // | |
167 | TGeoPcon *dvol = new TGeoPcon(0.,360.,6); | |
168 | dvol->DefineSection(0,-260.,74.5,264.4); | |
169 | dvol->DefineSection(1,-253.6,74.5,264.4); | |
170 | // | |
171 | dvol->DefineSection(2,-253.6,76.6774,258.); | |
172 | dvol->DefineSection(3,253.6,76.6774,258.); | |
173 | // | |
174 | dvol->DefineSection(4,253.6,74.5,264.4); | |
175 | dvol->DefineSection(5,260.,74.5,264.4); | |
176 | // | |
f3d601a5 | 177 | TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-2"); |
c1637e41 | 178 | TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5); |
179 | // | |
180 | v1->AddNode(v9,1); | |
181 | // | |
182 | // outer insulator | |
183 | // | |
184 | TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator | |
185 | // | |
186 | tpco->DefineSection(0,-256.6,264.8,278.); | |
187 | tpco->DefineSection(1,-253.6,264.8,278.); | |
188 | // | |
189 | tpco->DefineSection(2,-253.6,258.,278.); | |
190 | tpco->DefineSection(3,250.6,258.,278.); | |
191 | // | |
192 | tpco->DefineSection(4,250.6,258.,275.5); | |
193 | tpco->DefineSection(5,253.6,258.,275.5); | |
194 | // | |
195 | TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2"); | |
196 | TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2); | |
197 | // | |
198 | // outer containment vessel | |
199 | // | |
200 | TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel | |
201 | // | |
202 | tocv->DefineSection(0,-256.6,264.8,278.); | |
203 | tocv->DefineSection(1,-253.6,264.8,278.); | |
204 | // | |
205 | tocv->DefineSection(2,-253.6,274.8124,278.); | |
206 | tocv->DefineSection(3,247.6,274.8124,278.); | |
207 | // | |
208 | tocv->DefineSection(4,247.6,270.4,278.); | |
209 | tocv->DefineSection(5,250.6,270.4,278.); | |
210 | // | |
211 | TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al"); | |
212 | TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3); | |
213 | // | |
214 | TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy | |
215 | TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar | |
216 | TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2 | |
217 | TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex | |
218 | // | |
219 | TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy"); | |
220 | TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar"); | |
221 | TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2"); | |
222 | TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex"); | |
223 | // | |
224 | TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1); | |
225 | TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2); | |
226 | TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3); | |
227 | TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4); | |
37831078 | 228 | |
c1637e41 | 229 | //------------------------------------------------------- |
230 | // Tpc Outer Field Cage | |
231 | // daughters - composite (sandwich) | |
232 | //------------------------------------------------------- | |
37831078 | 233 | |
c1637e41 | 234 | TGeoPcon *tofc = new TGeoPcon(0.,360.,6); |
235 | // | |
236 | tofc->DefineSection(0,-253.6,258.,269.6); | |
237 | tofc->DefineSection(1,-250.6,258.,269.6); | |
238 | // | |
239 | tofc->DefineSection(2,-250.6,258.,260.0676); | |
240 | tofc->DefineSection(3,250.6,258.,260.0676); | |
241 | // | |
242 | tofc->DefineSection(4,250.6,258.,275.5); | |
243 | tofc->DefineSection(5,253.6,258.,275.5); | |
244 | // | |
245 | TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3); | |
246 | //sandwich | |
247 | TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar | |
248 | TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3 | |
249 | TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex | |
250 | // | |
251 | TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3"); | |
252 | // | |
253 | TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2); | |
254 | TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5); | |
255 | TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4); | |
256 | // | |
257 | // outer part - positioning | |
258 | // | |
259 | tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1); | |
260 | // | |
261 | tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1); | |
262 | // | |
456cb019 | 263 | v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1); |
c1637e41 | 264 | // |
265 | v2->AddNode(v3,1); v2->AddNode(v4,1); | |
266 | // | |
267 | v1->AddNode(v2,1); | |
268 | //----------------------------------------------------------- | |
37831078 | 269 | |
37831078 | 270 | |
37831078 | 271 | |
37831078 | 272 | |
37831078 | 273 | |
37831078 | 274 | |
c1637e41 | 275 | //-------------------------------------------------------------------- |
276 | // Tpc Inner INsulator (CO2) | |
277 | // the cones, the central drum and the inner f.c. sandwich with a piece | |
278 | // of the flane will be placed in the TPC | |
279 | //-------------------------------------------------------------------- | |
280 | TGeoPcon *tpci = new TGeoPcon(0.,360.,4); | |
281 | // | |
282 | tpci->DefineSection(0,-253.6,68.4,76.6774); | |
283 | tpci->DefineSection(1,-74.0,61.2,76.6774); | |
284 | // | |
285 | tpci->DefineSection(2,74.0,61.2,76.6774); | |
286 | // | |
287 | tpci->DefineSection(3,253.6,65.9,76.6774); | |
288 | // | |
289 | TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2); | |
290 | // | |
291 | // now the inner field cage - only part of flanges (2 copies) | |
292 | // | |
293 | TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5); | |
294 | TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3); | |
295 | // | |
296 | //--------------------------------------------------------- | |
297 | // Tpc Inner Containment vessel - Muon side | |
298 | //--------------------------------------------------------- | |
299 | TGeoPcon *tcms = new TGeoPcon(0.,360.,10); | |
300 | // | |
301 | tcms->DefineSection(0,-259.1,68.1,74.2); | |
302 | tcms->DefineSection(1,-253.6,68.1,74.2); | |
303 | // | |
304 | tcms->DefineSection(2,-253.6,68.1,68.4); | |
305 | tcms->DefineSection(3,-74.0,60.9,61.2); | |
306 | // | |
307 | tcms->DefineSection(4,-74.0,60.1,61.2); | |
308 | tcms->DefineSection(5,-73.3,60.1,61.2); | |
309 | // | |
310 | tcms->DefineSection(6,-73.3,56.9,61.2); | |
311 | tcms->DefineSection(7,-73.0,56.9,61.2); | |
312 | // | |
313 | tcms->DefineSection(8,-73.0,56.9,58.8); | |
314 | tcms->DefineSection(9,-71.3,56.9,58.8); | |
315 | // | |
316 | TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3); | |
37831078 | 317 | //----------------------------------------------- |
c1637e41 | 318 | // inner containment vessel - shaft side |
37831078 | 319 | //----------------------------------------------- |
c1637e41 | 320 | TGeoPcon *tcss = new TGeoPcon(0.,360.,10); |
321 | // | |
322 | tcss->DefineSection(0,71.3,56.9,58.8); | |
323 | tcss->DefineSection(1,73.0,56.9,58.8); | |
324 | // | |
325 | tcss->DefineSection(2,73.0,56.9,61.2); | |
326 | tcss->DefineSection(3,73.3,56.9,61.2); | |
327 | // | |
328 | tcss->DefineSection(4,73.3,60.1,61.2); | |
329 | tcss->DefineSection(5,74.0,60.1,61.2); | |
330 | // | |
331 | tcss->DefineSection(6,74.0,60.9,61.2); | |
332 | tcss->DefineSection(7,253.6,65.6,65.9); | |
333 | // | |
334 | tcss->DefineSection(8,253.6,65.6,74.2); | |
335 | tcss->DefineSection(9,258.1,65.6,74.2); | |
336 | // | |
337 | TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3); | |
338 | //----------------------------------------------- | |
339 | // Inner field cage | |
340 | // define 4 parts and make an assembly | |
341 | //----------------------------------------------- | |
342 | // part1 - Al - 2 copies | |
343 | TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75); | |
344 | TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3); | |
345 | // sandwich - outermost parts - 2 copies | |
346 | TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns | |
347 | TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns | |
348 | TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns | |
349 | TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm | |
350 | // | |
351 | TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2); | |
352 | TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3); | |
353 | TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5); | |
354 | TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4); | |
355 | // | |
356 | // middle parts - 2 copies | |
357 | TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns | |
358 | TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns | |
359 | TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns | |
360 | TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm | |
361 | // | |
362 | TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2); | |
363 | TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3); | |
364 | TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5); | |
365 | TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4); | |
366 | // central part - 1 copy | |
367 | TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns | |
368 | TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns | |
369 | TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm | |
370 | // | |
371 | TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2); | |
372 | TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5); | |
373 | TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4); | |
374 | // | |
375 | // inner part - positioning | |
376 | // | |
377 | // creating a sandwich | |
378 | tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1); | |
379 | // | |
380 | tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1); | |
381 | // | |
382 | tv10->AddNode(tv11,1); tv11->AddNode(tv12,1); | |
383 | // | |
384 | TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); | |
385 | // | |
386 | tv100->AddNode(tv10,1); | |
387 | tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); | |
388 | tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); | |
389 | tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); | |
390 | tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925)); | |
391 | tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85)); | |
392 | tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85)); | |
393 | // | |
394 | v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1)); | |
395 | v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1)); | |
396 | v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1); | |
397 | v9->AddNode(tv100,1); | |
398 | // | |
399 | // central drum | |
400 | // | |
401 | // flange + sandwich | |
402 | // | |
403 | TGeoPcon *cfl = new TGeoPcon(0.,360.,6); | |
404 | cfl->DefineSection(0,-71.1,59.7,61.2); | |
405 | cfl->DefineSection(1,-68.6,59.7,61.2); | |
406 | // | |
407 | cfl->DefineSection(2,-68.6,60.6324,61.2); | |
408 | cfl->DefineSection(3,68.6,60.6324,61.2); | |
409 | // | |
410 | cfl->DefineSection(4,68.6,59.7,61.2); | |
411 | cfl->DefineSection(5,71.1,59.7,61.2); | |
412 | // | |
413 | TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3); | |
414 | // sandwich | |
415 | TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1); | |
416 | TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1); | |
417 | TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1); | |
418 | // | |
419 | TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1"); | |
420 | TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar | |
421 | TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1 | |
422 | TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex | |
423 | // | |
424 | // seals for central drum 2 copies | |
425 | // | |
426 | TGeoTube *cs = new TGeoTube(56.9,61.2,0.1); | |
427 | TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar"); | |
428 | TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7); | |
78134e48 | 429 | v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2)); |
430 | v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2)); | |
c1637e41 | 431 | // |
432 | // seal collars | |
433 | TGeoPcon *se = new TGeoPcon(0.,360.,6); | |
434 | se->DefineSection(0,-72.8,59.7,61.2); | |
435 | se->DefineSection(1,-72.3,59.7,61.2); | |
436 | // | |
437 | se->DefineSection(2,-72.3,58.85,61.2); | |
438 | se->DefineSection(3,-71.6,58.85,61.2); | |
439 | // | |
440 | se->DefineSection(4,-71.6,59.7,61.2); | |
441 | se->DefineSection(5,-71.3,59.7,61.2); | |
442 | // | |
443 | TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3); | |
444 | // | |
445 | TGeoTube *si = new TGeoTube(56.9,58.8,1.); | |
446 | TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3); | |
447 | // | |
448 | // define reflection matrix | |
449 | // | |
4fa47888 | 450 | TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.); |
c1637e41 | 451 | // |
452 | cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1); | |
453 | // | |
a1ec4d07 | 454 | v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9)); |
455 | v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9)); | |
c1637e41 | 456 | v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1); |
457 | // | |
458 | // central membrane - 2 rings and a mylar membrane - assembly | |
459 | // | |
460 | TGeoTube *ih = new TGeoTube(81.05,84.05,0.3); | |
461 | TGeoTube *oh = new TGeoTube(250.,256.,.5); | |
462 | TGeoTube *mem = new TGeoTube(84.05,250,0.01); | |
463 | TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3); | |
464 | TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3); | |
465 | TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7); | |
466 | // | |
467 | TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM"); | |
468 | cm->AddNode(ihv,1); | |
469 | cm->AddNode(ohv,1); | |
470 | cm->AddNode(memv,1); | |
471 | v9->AddNode(cm,1); | |
472 | // | |
473 | // end caps - they are make as an assembly of single segments | |
474 | // containing both readout chambers | |
475 | // | |
d899e254 | 476 | Double_t openingAngle = 10.*TMath::DegToRad(); |
c1637e41 | 477 | Double_t thick=1.5; // rib |
d899e254 | 478 | Double_t shift = thick/TMath::Sin(openingAngle); |
c1637e41 | 479 | // |
d899e254 | 480 | Double_t lowEdge = 86.3; // hole in the wheel |
481 | Double_t upEdge = 240.4; // hole in the wheel | |
c1637e41 | 482 | // |
483 | new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.); | |
484 | // | |
485 | TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4); | |
486 | // | |
d899e254 | 487 | hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift); |
488 | hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift); | |
c1637e41 | 489 | // |
d899e254 | 490 | hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift); |
491 | hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift); | |
c1637e41 | 492 | // |
d899e254 | 493 | Double_t ys = shift*TMath::Sin(openingAngle); |
494 | Double_t xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 495 | TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.); |
496 | tr->RegisterYourself(); | |
497 | TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr"); | |
498 | TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3); | |
499 | TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2); | |
500 | bar->DefineSection(0,-3.,131.5-shift,136.5-shift); | |
501 | bar->DefineSection(1,1.5,131.5-shift,136.5-shift); | |
502 | TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3); | |
503 | TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment | |
504 | // | |
505 | ch->AddNode(sv,1); ch->AddNode(barv,1,tr); | |
506 | // | |
507 | // readout chambers | |
508 | // | |
509 | // IROC first | |
510 | // | |
511 | TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15); | |
512 | TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3); | |
513 | // empty space | |
514 | TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65); | |
515 | TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1); | |
516 | ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.)); | |
517 | //bars | |
518 | Double_t tga = (19.8328-12.3742)/39.3; | |
519 | Double_t xmin,xmax; | |
520 | xmin = 9.55*tga+12.3742; | |
521 | xmax = 9.95*tga+12.3742; | |
522 | TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
523 | TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3); | |
524 | empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9)); | |
525 | xmin=19.4*tga+12.3742; | |
526 | xmax=19.9*tga+12.3742; | |
527 | TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25); | |
528 | TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3); | |
529 | empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.)); | |
530 | xmin=29.35*tga+12.3742; | |
531 | xmax=29.75*tga+12.3742; | |
532 | TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
533 | TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3); | |
534 | empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9)); | |
535 | // | |
536 | // holes for connectors | |
537 | // | |
538 | TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc | |
539 | TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1); | |
d9e80aca | 540 | TString fileName(gSystem->Getenv("ALICE_ROOT")); |
541 | fileName += "/TPC/conn_iroc.dat"; | |
c1637e41 | 542 | ifstream in; |
d9e80aca | 543 | in.open(fileName.Data(), ios_base::in); // asci file |
c1637e41 | 544 | for(Int_t i =0;i<86;i++){ |
456cb019 | 545 | Double_t y = 3.99; |
c1637e41 | 546 | Double_t x,z,ang; |
547 | in>>x>>z>>ang; | |
456cb019 | 548 | z-=26.5; |
c1637e41 | 549 | TGeoRotation *rrr = new TGeoRotation(); |
550 | rrr->RotateY(ang); | |
551 | TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr); | |
552 | ibdv->AddNode(connv,i+1,trans); | |
553 | } | |
554 | in.close(); | |
555 | // "cap" | |
556 | new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825); | |
557 | // "hole" | |
558 | new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15); | |
559 | TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725); | |
560 | tr1->RegisterYourself(); | |
561 | TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1"); | |
562 | TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3); | |
563 | // | |
564 | // pad plane and wire fixations | |
565 | // | |
566 | TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso | |
567 | TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10"); | |
568 | TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4); | |
569 | TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.); | |
570 | TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4); | |
571 | TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.); | |
572 | TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4); | |
573 | // | |
574 | TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC"); | |
575 | // | |
576 | iroc->AddNode(ibdv,1); | |
577 | iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725)); | |
578 | iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725)); | |
579 | tga =(23.3521-14.5974)/49.65; | |
580 | Double_t xx = 24.825*tga+14.5974-0.6; | |
581 | iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725)); | |
582 | iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725)); | |
583 | // | |
584 | // OROC | |
585 | // | |
586 | TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65); | |
587 | TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3); | |
588 | TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65); | |
589 | TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1); | |
590 | obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.)); | |
591 | //horizontal bars | |
592 | tga=(38.5084-20.2938)/99.3; | |
593 | xmin=tga*10.2+20.2938; | |
594 | xmax=tga*10.6+20.2938; | |
595 | TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
596 | TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3); | |
597 | // | |
598 | xmin=22.55*tga+20.2938; | |
599 | xmax=24.15*tga+20.2938; | |
600 | TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
601 | TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3); | |
602 | // | |
603 | xmin=36.1*tga+20.2938; | |
604 | xmax=36.5*tga+20.2938; | |
605 | TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
606 | TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3); | |
607 | // | |
608 | xmin=49.0*tga+20.2938; | |
609 | xmax=50.6*tga+20.2938; | |
610 | TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
611 | TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3); | |
612 | // | |
613 | xmin=63.6*tga+20.2938; | |
614 | xmax=64.0*tga+20.2938; | |
615 | TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
616 | TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3); | |
617 | // | |
618 | xmin=75.5*tga+20.2938; | |
619 | xmax=77.15*tga+20.2938; | |
620 | TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
621 | TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3); | |
622 | // | |
623 | xmin=88.7*tga+20.2938; | |
624 | xmax=89.1*tga+20.2938; | |
625 | TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
626 | TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3); | |
627 | // | |
628 | oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25)); | |
629 | oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3)); | |
630 | oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35)); | |
631 | oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15)); | |
632 | oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15)); | |
633 | oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7)); | |
634 | oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25)); | |
635 | // vertical bars | |
636 | TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1); | |
637 | TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975); | |
638 | TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775); | |
639 | TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25); | |
640 | TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5); | |
641 | // | |
642 | TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3); | |
643 | TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3); | |
644 | TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3); | |
645 | TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3); | |
646 | TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3); | |
647 | // | |
648 | oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55)); | |
649 | oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55)); | |
650 | oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075)); | |
651 | oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525)); | |
652 | oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125)); | |
653 | oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275)); | |
654 | oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9)); | |
655 | oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45)); | |
656 | // | |
657 | // holes for connectors | |
658 | // | |
d9e80aca | 659 | fileName = gSystem->Getenv("ALICE_ROOT"); |
660 | fileName += "/TPC/conn_oroc.dat"; | |
661 | in.open(fileName.Data(), ios_base::in); // asci file | |
c1637e41 | 662 | for(Int_t i =0;i<78;i++){ |
663 | Double_t y =3.89; | |
664 | Double_t x,z,ang; | |
665 | Double_t x1,z1,x2,z2; | |
666 | in>>x>>z>>ang; | |
667 | Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad()); | |
668 | Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad()); | |
669 | // | |
670 | x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z; | |
671 | // | |
672 | TGeoRotation *rr = new TGeoRotation(); | |
673 | rr->RotateY(ang); | |
674 | z1-=54.95; | |
675 | z2-=54.95; | |
676 | TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr); | |
677 | TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr); | |
678 | obdv->AddNode(connv,i+1,trans1); | |
679 | obdv->AddNode(connv,i+79,trans2); | |
680 | } | |
681 | in.close(); | |
682 | // cap | |
683 | new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1); | |
684 | new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65); | |
685 | TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15); | |
686 | tr5->RegisterYourself(); | |
687 | TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5"); | |
688 | TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3); | |
689 | // | |
690 | // pad plane and wire fixations | |
691 | // | |
692 | TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1); | |
693 | TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4); | |
694 | // | |
695 | tga=(43.5239-23.3874)/114.2; | |
696 | TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.); | |
697 | TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.); | |
698 | xx = 57.1*tga+23.3874-0.7; | |
699 | TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4); | |
700 | TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4); | |
701 | // | |
702 | TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC"); | |
703 | // | |
704 | oroc->AddNode(obdv,1); | |
705 | oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15)); | |
706 | oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15)); | |
707 | oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15)); | |
708 | oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15)); | |
709 | // | |
710 | // now iroc and oroc are placed into a sector... | |
711 | // | |
a1ec4d07 | 712 | TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side |
713 | TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side | |
c1637e41 | 714 | TGeoRotation rot1("rot1",90.,90.,0.); |
715 | TGeoRotation rot2("rot2"); | |
716 | rot2.RotateY(10.); | |
717 | TGeoRotation *rot = new TGeoRotation("rot"); | |
718 | *rot=rot1*rot2; | |
719 | // | |
720 | Double_t x0,y0; | |
d899e254 | 721 | x0=110.2*TMath::Cos(openingAngle); |
722 | y0=110.2*TMath::Sin(openingAngle); | |
20527578 | 723 | TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side |
724 | TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side | |
d899e254 | 725 | x0=188.45*TMath::Cos(openingAngle); |
726 | y0=188.45*TMath::Sin(openingAngle); | |
20527578 | 727 | TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side |
728 | TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side | |
c1637e41 | 729 | // |
a1ec4d07 | 730 | // A-side |
c1637e41 | 731 | // |
a1ec4d07 | 732 | secta->AddNode(ch,1); |
733 | secta->AddNode(iroc,1,combi1a); | |
734 | secta->AddNode(oroc,1,combi2a); | |
c1637e41 | 735 | // |
a1ec4d07 | 736 | // C-side |
737 | // | |
738 | sectc->AddNode(ch,1); | |
739 | sectc->AddNode(iroc,1,combi1c); | |
740 | sectc->AddNode(oroc,1,combi2c); | |
741 | // | |
742 | // now I try to make wheels... | |
743 | // | |
744 | TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
745 | TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
c1637e41 | 746 | // |
747 | for(Int_t i =0;i<18;i++){ | |
748 | Double_t phi = (20.*i); | |
749 | TGeoRotation *r = new TGeoRotation(); | |
750 | r->RotateZ(phi); | |
a1ec4d07 | 751 | wheela->AddNode(secta,i+1,r); |
752 | wheelc->AddNode(sectc,i+1,r); | |
c1637e41 | 753 | |
754 | } | |
755 | // wheels in the drift volume! | |
c1637e41 | 756 | TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref); |
a1ec4d07 | 757 | v9->AddNode(wheela,1,combi3); |
758 | v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6)); | |
37831078 | 759 | |
c1637e41 | 760 | //_____________________________________________________________ |
761 | // service support wheel | |
762 | //_____________________________________________________________ | |
763 | TGeoPgon *sw = new TGeoPgon(0.,20.,1,2); | |
764 | sw->DefineSection(0,-4.,80.5,251.75); | |
765 | sw->DefineSection(1,4.,80.5,251.75); | |
766 | TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al | |
767 | // | |
768 | thick=1.; | |
d899e254 | 769 | shift = thick/TMath::Sin(openingAngle); |
c1637e41 | 770 | TGeoPgon *sh = new TGeoPgon(0.,20.,1,2); |
771 | sh->DefineSection(0,-4.,81.5-shift,250.75-shift); | |
772 | sh->DefineSection(1,4.,81.5-shift,250.75-shift); | |
773 | TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air | |
774 | // | |
74518339 | 775 | TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si"); |
776 | TGeoPgon *el = new TGeoPgon(0.,20.,1,2); | |
777 | el->DefineSection(0,-1.872,81.5-shift,250.75-shift); | |
778 | el->DefineSection(1,1.872,81.5-shift,250.75-shift); | |
779 | TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si | |
780 | // | |
781 | shv->AddNode(elv,1); | |
782 | // | |
d899e254 | 783 | ys = shift*TMath::Sin(openingAngle); |
784 | xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 785 | swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.)); |
786 | // cover | |
787 | TGeoPgon *co = new TGeoPgon(0.,20.,1,2); | |
788 | co->DefineSection(0,-0.5,77.,255.25); | |
789 | co->DefineSection(1,0.5,77.,255.25); | |
790 | TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al | |
791 | // hole in a cover | |
792 | TGeoPgon *coh = new TGeoPgon(0.,20.,1,2); | |
d899e254 | 793 | shift=4./TMath::Sin(openingAngle); |
c1637e41 | 794 | coh->DefineSection(0,-0.5,85.-shift,247.25-shift); |
795 | coh->DefineSection(1,0.5,85.-shift,247.25-shift); | |
796 | // | |
797 | TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1); | |
798 | // | |
d899e254 | 799 | ys = shift*TMath::Sin(openingAngle); |
800 | xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 801 | cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.)); |
802 | // | |
803 | // Sector as an Assembly | |
804 | // | |
805 | TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC"); | |
806 | swhs->AddNode(swv,1); | |
807 | swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5)); | |
808 | swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5)); | |
809 | // | |
810 | // SSW as an Assembly of sectors | |
811 | // | |
812 | TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL"); | |
813 | for(Int_t i =0;i<18;i++){ | |
814 | Double_t phi = (20.*i); | |
815 | TGeoRotation *r = new TGeoRotation(); | |
816 | r->RotateZ(phi); | |
817 | swheel->AddNode(swhs,i+1,r); | |
818 | } | |
819 | v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6)); | |
820 | v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6)); | |
821 | // | |
37831078 | 822 | //---------------------------------------------------------- |
823 | // TPc Support Rods - MAKROLON | |
824 | //---------------------------------------------------------- | |
c1637e41 | 825 | TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon"); |
826 | TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu"); | |
78134e48 | 827 | TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina"); |
828 | TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek"); | |
829 | TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water"); | |
c1637e41 | 830 | // upper and lower rods differ in length! |
831 | Double_t *upar; | |
832 | upar=NULL; | |
833 | gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar); | |
834 | upar=new Double_t [3]; | |
835 | upar[0]=1.8; | |
836 | upar[1]=2.2; | |
837 | ||
838 | // | |
839 | //HV rods - makrolon + 0.58cm (diameter) Cu | |
ae4806ca | 840 | TGeoTube *hvr = new TGeoTube(0.,2.2,126.64); |
c1637e41 | 841 | TGeoTube *hvc = new TGeoTube(0.,0.29,126.64); |
842 | // | |
843 | TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6); | |
844 | TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7); | |
845 | hvrv->AddNode(hvcv,1); | |
78134e48 | 846 | // |
847 | // resistor rods | |
848 | // | |
849 | TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner | |
850 | TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer | |
851 | TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner | |
852 | TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer | |
853 | // | |
854 | TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10); | |
855 | TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10); | |
856 | TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11); | |
857 | TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11); | |
858 | // | |
859 | // ceramic rod with water | |
860 | // | |
861 | criv->AddNode(cwiv,1); | |
862 | crov->AddNode(cwov,1); | |
863 | // | |
864 | TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner | |
865 | TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer | |
866 | // | |
867 | // peek rod | |
868 | // | |
869 | TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12); | |
870 | TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12); | |
871 | // | |
872 | // resistor rods assembly | |
873 | // | |
be53328e | 874 | TGeoRotation *rotr = new TGeoRotation("rotr"); |
875 | rotr->RotateZ(-21.); | |
78134e48 | 876 | // |
877 | TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner | |
878 | TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner | |
879 | // | |
880 | TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6); | |
881 | TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6); | |
882 | // | |
a3d2be59 | 883 | TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I"); |
884 | TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O"); | |
885 | rrin->AddNode(rriv,1); | |
886 | rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.)); | |
887 | rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.)); | |
888 | rrin->AddNode(priv,1); | |
889 | // | |
890 | rrou->AddNode(rrov,1); | |
891 | rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.)); | |
892 | rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.)); | |
893 | rrou->AddNode(prov,1); | |
7281dc07 | 894 | for(Int_t i=0;i<18;i++){ |
c1637e41 | 895 | Double_t angle,x,y; |
896 | Double_t z,r; | |
897 | angle=TMath::DegToRad()*20.*(Double_t)i; | |
898 | r=81.5; | |
899 | x=r * TMath::Cos(angle); | |
900 | y=r * TMath::Sin(angle); | |
901 | upar[2]=126.64; //lower | |
902 | z= 126.96; | |
78134e48 | 903 | // |
904 | if(i==3){ | |
be53328e | 905 | v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A |
906 | v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C | |
78134e48 | 907 | } |
908 | else { | |
909 | gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft | |
910 | gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon | |
c1637e41 | 911 | } |
78134e48 | 912 | |
913 | ||
914 | // | |
c1637e41 | 915 | r=254.25; |
916 | x=r * TMath::Cos(angle); | |
917 | y=r * TMath::Sin(angle); | |
918 | upar[2]=126.54; //upper | |
919 | z=127.06; | |
78134e48 | 920 | if(i==15){ |
5042ab7d | 921 | //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only |
922 | v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only | |
78134e48 | 923 | gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); |
924 | } | |
925 | else if(i==11){ | |
be53328e | 926 | v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A |
927 | v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C | |
78134e48 | 928 | } |
929 | else{ | |
930 | // | |
931 | gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3); | |
932 | gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); | |
933 | } | |
37831078 | 934 | } |
935 | ||
bde68ab0 | 936 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); |
937 | alice->AddNode(v1,1); | |
938 | ||
37831078 | 939 | |
940 | ||
941 | } // end of function | |
37831078 | 942 | |
37831078 | 943 | |
944 | //_____________________________________________________________________________ | |
945 | void AliTPCv3::CreateMaterials() | |
946 | { | |
947 | // | |
948 | // Define materials for version 2 of the Time Projection Chamber | |
949 | // | |
950 | ||
951 | ||
952 | // | |
953 | AliTPC::CreateMaterials(); | |
954 | } | |
955 | ||
956 | //_____________________________________________________________________________ | |
957 | void AliTPCv3::Init() | |
958 | { | |
959 | // | |
960 | // Initialises version 3 of the TPC after that it has been built | |
961 | // | |
8d888a91 | 962 | //Int_t *idtmed = fIdtmed->GetArray(); |
4b0fdcad | 963 | |
964 | AliTPC::Init(); | |
965 | ||
c1637e41 | 966 | fIdSens=gMC->VolId("TPC_Drift"); // drift gas as a sensitive volume |
4b0fdcad | 967 | |
d9888f70 | 968 | gMC->SetMaxNStep(-30000); // max. number of steps increased |
4b0fdcad | 969 | |
098dfc1a | 970 | // specific energy loss is now set in galice.cuts |
4b0fdcad | 971 | |
13a8c8d7 | 972 | printf("%s: *** TPC version 3 initialized***\n",ClassName()); |
973 | ||
974 | printf("%s: Maximum number of steps = %d\n",ClassName(),gMC->GetMaxNStep()); | |
975 | ||
976 | // printf("*** TPC version 3 initialized ***\n"); | |
977 | // printf("Maximum number of steps = %d\n",gMC->GetMaxNStep()); | |
4b0fdcad | 978 | |
979 | // | |
980 | ||
981 | } | |
982 | ||
983 | //_____________________________________________________________________________ | |
984 | void AliTPCv3::StepManager() | |
985 | { | |
986 | // | |
987 | // Called for every step in the Time Projection Chamber | |
988 | // | |
989 | ||
990 | // | |
991 | // parameters used for the energy loss calculations | |
992 | // | |
73042f01 | 993 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
994 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
995 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
4b0fdcad | 996 | |
997 | ||
73042f01 | 998 | const Float_t kbig = 1.e10; |
4b0fdcad | 999 | |
1000 | Int_t id,copy; | |
1001 | TLorentzVector pos; | |
e61fd20d | 1002 | Float_t hits[5]; |
4b0fdcad | 1003 | Int_t vol[2]; |
4b0fdcad | 1004 | |
1005 | vol[1]=0; | |
1006 | vol[0]=0; | |
1007 | ||
1008 | // | |
1009 | ||
73042f01 | 1010 | gMC->SetMaxStep(kbig); |
4b0fdcad | 1011 | |
1012 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
1013 | ||
1014 | Float_t charge = gMC->TrackCharge(); | |
1015 | ||
1016 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1017 | ||
1018 | ||
1019 | id=gMC->CurrentVolID(copy); | |
c1637e41 | 1020 | |
4b0fdcad | 1021 | |
37831078 | 1022 | if (id != fIdSens) return; |
4b0fdcad | 1023 | |
1024 | // | |
1025 | // charged particle is in the sensitive volume | |
1026 | // | |
1027 | ||
1028 | if(gMC->TrackStep() > 0) { | |
1029 | ||
1030 | ||
73042f01 | 1031 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
4b0fdcad | 1032 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
1033 | ||
1034 | gMC->TrackPosition(pos); | |
1035 | hits[0]=pos[0]; | |
1036 | hits[1]=pos[1]; | |
1037 | hits[2]=pos[2]; | |
1038 | ||
e61fd20d | 1039 | // Get also the track time for pileup simulation |
1040 | hits[4]=gMC->TrackTime(); | |
1041 | ||
4b0fdcad | 1042 | // |
1043 | // check the selected side of the TPC | |
1044 | // | |
1045 | ||
1046 | if(fSide && fSide*hits[2]<=0.) return; | |
1047 | ||
1048 | hits[3]=(Float_t)nel; | |
1049 | ||
1050 | // Add this hit | |
1051 | ||
5d12ce38 | 1052 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); //MI change |
4b0fdcad | 1053 | |
1054 | } | |
1055 | ||
1056 | // Stemax calculation for the next step | |
1057 | ||
1058 | Float_t pp; | |
1059 | TLorentzVector mom; | |
1060 | gMC->TrackMomentum(mom); | |
1061 | Float_t ptot=mom.Rho(); | |
73042f01 | 1062 | Float_t betaGamma = ptot/gMC->TrackMass(); |
4b0fdcad | 1063 | |
69e40cce | 1064 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 1065 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
4b0fdcad | 1066 | { |
73042f01 | 1067 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
4b0fdcad | 1068 | } |
1069 | else | |
1070 | { | |
7b562732 | 1071 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); |
b40afa5e | 1072 | pp=kprim*AliMathBase::BetheBlochAleph(betaGamma); |
4b0fdcad | 1073 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
1074 | } | |
1075 | ||
b9d0a01d | 1076 | Double_t rnd = gMC->GetRandom()->Rndm(); |
4b0fdcad | 1077 | |
1078 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); | |
1079 | ||
1080 | } |