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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 | // |
8ad31ee5 | 117 | TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections |
4b0fdcad | 118 | // |
8ad31ee5 | 119 | tpc->DefineSection(0,-289.6,77.,278.); |
120 | tpc->DefineSection(1,-262.1,77.,278.); | |
4b0fdcad | 121 | // |
8ad31ee5 | 122 | tpc->DefineSection(2,-262.1,83.1,278.); |
123 | tpc->DefineSection(3,-260.,83.1,278.); | |
4b0fdcad | 124 | // |
8ad31ee5 | 125 | tpc->DefineSection(4,-260.,70.,278.); |
126 | tpc->DefineSection(5,-259.6,70.,278.); | |
4b0fdcad | 127 | // |
8ad31ee5 | 128 | tpc->DefineSection(6,-259.6,68.1,278.); |
129 | tpc->DefineSection(7,-253.6,68.1,278.); | |
37831078 | 130 | // |
8ad31ee5 | 131 | tpc->DefineSection(8,-253.6,68.,278.); |
132 | tpc->DefineSection(9,-74.0,60.8,278.); | |
37831078 | 133 | // |
8ad31ee5 | 134 | tpc->DefineSection(10,-74.0,60.1,278.); |
135 | tpc->DefineSection(11,-73.3,60.1,278.); | |
79575d04 | 136 | // |
8ad31ee5 | 137 | tpc->DefineSection(12,-73.3,56.9,278.); |
138 | tpc->DefineSection(13,-68.5,56.9,278.); | |
c1637e41 | 139 | // |
8ad31ee5 | 140 | tpc->DefineSection(14,-68.5,60.,278.); |
141 | tpc->DefineSection(15,-64.7,60.,278.); | |
78134e48 | 142 | // |
8ad31ee5 | 143 | tpc->DefineSection(16,-64.7,56.9,278.); |
144 | tpc->DefineSection(17,73.3,56.9,278.); | |
78134e48 | 145 | // |
8ad31ee5 | 146 | tpc->DefineSection(18,73.3,60.1,278.); |
147 | tpc->DefineSection(19,74.0,60.1,278.); | |
4fb9bd37 | 148 | // |
8ad31ee5 | 149 | tpc->DefineSection(20,74.0,60.8,278.); |
150 | tpc->DefineSection(21,253.6,65.5,278.); | |
151 | tpc->DefineSection(22,253.6,65.6,278.); | |
152 | tpc->DefineSection(23,259.6,65.6,278.); | |
4fb9bd37 | 153 | // |
8ad31ee5 | 154 | tpc->DefineSection(24,259.6,70.0,278.); |
155 | tpc->DefineSection(25,260.,70.0,278.); | |
4fb9bd37 | 156 | // |
8ad31ee5 | 157 | tpc->DefineSection(26,260.,83.1,278.); |
158 | tpc->DefineSection(27,262.1,83.1,278.); | |
4fb9bd37 | 159 | // |
8ad31ee5 | 160 | tpc->DefineSection(28,262.1,77.,278); |
161 | tpc->DefineSection(29,289.6,77.,278.); | |
162 | ||
c1637e41 | 163 | // |
164 | TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air"); | |
165 | TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1); | |
166 | // | |
167 | // drift volume - sensitive volume, extended beyond the | |
168 | // endcaps, because of the alignment | |
169 | // | |
170 | TGeoPcon *dvol = new TGeoPcon(0.,360.,6); | |
171 | dvol->DefineSection(0,-260.,74.5,264.4); | |
172 | dvol->DefineSection(1,-253.6,74.5,264.4); | |
173 | // | |
174 | dvol->DefineSection(2,-253.6,76.6774,258.); | |
175 | dvol->DefineSection(3,253.6,76.6774,258.); | |
176 | // | |
177 | dvol->DefineSection(4,253.6,74.5,264.4); | |
178 | dvol->DefineSection(5,260.,74.5,264.4); | |
179 | // | |
f3d601a5 | 180 | TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-2"); |
c1637e41 | 181 | TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5); |
182 | // | |
183 | v1->AddNode(v9,1); | |
184 | // | |
185 | // outer insulator | |
186 | // | |
187 | TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator | |
188 | // | |
189 | tpco->DefineSection(0,-256.6,264.8,278.); | |
190 | tpco->DefineSection(1,-253.6,264.8,278.); | |
191 | // | |
192 | tpco->DefineSection(2,-253.6,258.,278.); | |
193 | tpco->DefineSection(3,250.6,258.,278.); | |
194 | // | |
195 | tpco->DefineSection(4,250.6,258.,275.5); | |
196 | tpco->DefineSection(5,253.6,258.,275.5); | |
197 | // | |
198 | TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2"); | |
199 | TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2); | |
200 | // | |
201 | // outer containment vessel | |
202 | // | |
203 | TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel | |
204 | // | |
205 | tocv->DefineSection(0,-256.6,264.8,278.); | |
206 | tocv->DefineSection(1,-253.6,264.8,278.); | |
207 | // | |
208 | tocv->DefineSection(2,-253.6,274.8124,278.); | |
209 | tocv->DefineSection(3,247.6,274.8124,278.); | |
210 | // | |
211 | tocv->DefineSection(4,247.6,270.4,278.); | |
212 | tocv->DefineSection(5,250.6,270.4,278.); | |
213 | // | |
214 | TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al"); | |
215 | TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3); | |
216 | // | |
217 | TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy | |
218 | TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar | |
219 | TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2 | |
220 | TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex | |
221 | // | |
222 | TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy"); | |
223 | TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar"); | |
224 | TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2"); | |
225 | TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex"); | |
226 | // | |
227 | TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1); | |
228 | TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2); | |
229 | TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3); | |
230 | TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4); | |
37831078 | 231 | |
c1637e41 | 232 | //------------------------------------------------------- |
233 | // Tpc Outer Field Cage | |
234 | // daughters - composite (sandwich) | |
235 | //------------------------------------------------------- | |
37831078 | 236 | |
c1637e41 | 237 | TGeoPcon *tofc = new TGeoPcon(0.,360.,6); |
238 | // | |
239 | tofc->DefineSection(0,-253.6,258.,269.6); | |
240 | tofc->DefineSection(1,-250.6,258.,269.6); | |
241 | // | |
242 | tofc->DefineSection(2,-250.6,258.,260.0676); | |
243 | tofc->DefineSection(3,250.6,258.,260.0676); | |
244 | // | |
245 | tofc->DefineSection(4,250.6,258.,275.5); | |
246 | tofc->DefineSection(5,253.6,258.,275.5); | |
247 | // | |
248 | TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3); | |
249 | //sandwich | |
250 | TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar | |
251 | TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3 | |
252 | TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex | |
253 | // | |
254 | TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3"); | |
255 | // | |
256 | TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2); | |
257 | TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5); | |
258 | TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4); | |
259 | // | |
260 | // outer part - positioning | |
261 | // | |
262 | tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1); | |
263 | // | |
264 | tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1); | |
265 | // | |
456cb019 | 266 | v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1); |
c1637e41 | 267 | // |
268 | v2->AddNode(v3,1); v2->AddNode(v4,1); | |
269 | // | |
270 | v1->AddNode(v2,1); | |
271 | //----------------------------------------------------------- | |
37831078 | 272 | |
37831078 | 273 | |
37831078 | 274 | |
37831078 | 275 | |
37831078 | 276 | |
37831078 | 277 | |
c1637e41 | 278 | //-------------------------------------------------------------------- |
279 | // Tpc Inner INsulator (CO2) | |
280 | // the cones, the central drum and the inner f.c. sandwich with a piece | |
281 | // of the flane will be placed in the TPC | |
282 | //-------------------------------------------------------------------- | |
283 | TGeoPcon *tpci = new TGeoPcon(0.,360.,4); | |
284 | // | |
285 | tpci->DefineSection(0,-253.6,68.4,76.6774); | |
286 | tpci->DefineSection(1,-74.0,61.2,76.6774); | |
287 | // | |
288 | tpci->DefineSection(2,74.0,61.2,76.6774); | |
289 | // | |
290 | tpci->DefineSection(3,253.6,65.9,76.6774); | |
291 | // | |
292 | TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2); | |
293 | // | |
294 | // now the inner field cage - only part of flanges (2 copies) | |
295 | // | |
296 | TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5); | |
297 | TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3); | |
298 | // | |
299 | //--------------------------------------------------------- | |
300 | // Tpc Inner Containment vessel - Muon side | |
301 | //--------------------------------------------------------- | |
302 | TGeoPcon *tcms = new TGeoPcon(0.,360.,10); | |
303 | // | |
304 | tcms->DefineSection(0,-259.1,68.1,74.2); | |
305 | tcms->DefineSection(1,-253.6,68.1,74.2); | |
306 | // | |
307 | tcms->DefineSection(2,-253.6,68.1,68.4); | |
308 | tcms->DefineSection(3,-74.0,60.9,61.2); | |
309 | // | |
310 | tcms->DefineSection(4,-74.0,60.1,61.2); | |
311 | tcms->DefineSection(5,-73.3,60.1,61.2); | |
312 | // | |
313 | tcms->DefineSection(6,-73.3,56.9,61.2); | |
314 | tcms->DefineSection(7,-73.0,56.9,61.2); | |
315 | // | |
316 | tcms->DefineSection(8,-73.0,56.9,58.8); | |
317 | tcms->DefineSection(9,-71.3,56.9,58.8); | |
318 | // | |
319 | TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3); | |
37831078 | 320 | //----------------------------------------------- |
c1637e41 | 321 | // inner containment vessel - shaft side |
37831078 | 322 | //----------------------------------------------- |
c1637e41 | 323 | TGeoPcon *tcss = new TGeoPcon(0.,360.,10); |
324 | // | |
325 | tcss->DefineSection(0,71.3,56.9,58.8); | |
326 | tcss->DefineSection(1,73.0,56.9,58.8); | |
327 | // | |
328 | tcss->DefineSection(2,73.0,56.9,61.2); | |
329 | tcss->DefineSection(3,73.3,56.9,61.2); | |
330 | // | |
331 | tcss->DefineSection(4,73.3,60.1,61.2); | |
332 | tcss->DefineSection(5,74.0,60.1,61.2); | |
333 | // | |
334 | tcss->DefineSection(6,74.0,60.9,61.2); | |
335 | tcss->DefineSection(7,253.6,65.6,65.9); | |
336 | // | |
337 | tcss->DefineSection(8,253.6,65.6,74.2); | |
338 | tcss->DefineSection(9,258.1,65.6,74.2); | |
339 | // | |
340 | TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3); | |
341 | //----------------------------------------------- | |
342 | // Inner field cage | |
343 | // define 4 parts and make an assembly | |
344 | //----------------------------------------------- | |
345 | // part1 - Al - 2 copies | |
346 | TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75); | |
347 | TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3); | |
348 | // sandwich - outermost parts - 2 copies | |
349 | TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns | |
350 | TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns | |
351 | TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns | |
352 | TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm | |
353 | // | |
354 | TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2); | |
355 | TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3); | |
356 | TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5); | |
357 | TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4); | |
358 | // | |
359 | // middle parts - 2 copies | |
360 | TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns | |
361 | TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns | |
362 | TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns | |
363 | TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm | |
364 | // | |
365 | TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2); | |
366 | TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3); | |
367 | TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5); | |
368 | TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4); | |
369 | // central part - 1 copy | |
370 | TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns | |
371 | TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns | |
372 | TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm | |
373 | // | |
374 | TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2); | |
375 | TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5); | |
376 | TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4); | |
377 | // | |
378 | // inner part - positioning | |
379 | // | |
380 | // creating a sandwich | |
381 | tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1); | |
382 | // | |
383 | tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1); | |
384 | // | |
385 | tv10->AddNode(tv11,1); tv11->AddNode(tv12,1); | |
386 | // | |
387 | TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); | |
388 | // | |
389 | tv100->AddNode(tv10,1); | |
390 | tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); | |
391 | tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); | |
392 | tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); | |
393 | tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925)); | |
394 | tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85)); | |
395 | tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85)); | |
396 | // | |
397 | v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1)); | |
398 | v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1)); | |
399 | v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1); | |
400 | v9->AddNode(tv100,1); | |
401 | // | |
402 | // central drum | |
403 | // | |
404 | // flange + sandwich | |
405 | // | |
406 | TGeoPcon *cfl = new TGeoPcon(0.,360.,6); | |
407 | cfl->DefineSection(0,-71.1,59.7,61.2); | |
408 | cfl->DefineSection(1,-68.6,59.7,61.2); | |
409 | // | |
410 | cfl->DefineSection(2,-68.6,60.6324,61.2); | |
411 | cfl->DefineSection(3,68.6,60.6324,61.2); | |
412 | // | |
413 | cfl->DefineSection(4,68.6,59.7,61.2); | |
414 | cfl->DefineSection(5,71.1,59.7,61.2); | |
415 | // | |
416 | TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3); | |
417 | // sandwich | |
418 | TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1); | |
419 | TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1); | |
420 | TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1); | |
421 | // | |
422 | TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1"); | |
423 | TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar | |
424 | TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1 | |
425 | TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex | |
426 | // | |
427 | // seals for central drum 2 copies | |
428 | // | |
429 | TGeoTube *cs = new TGeoTube(56.9,61.2,0.1); | |
430 | TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar"); | |
431 | TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7); | |
78134e48 | 432 | v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2)); |
433 | v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2)); | |
c1637e41 | 434 | // |
435 | // seal collars | |
436 | TGeoPcon *se = new TGeoPcon(0.,360.,6); | |
437 | se->DefineSection(0,-72.8,59.7,61.2); | |
438 | se->DefineSection(1,-72.3,59.7,61.2); | |
439 | // | |
440 | se->DefineSection(2,-72.3,58.85,61.2); | |
441 | se->DefineSection(3,-71.6,58.85,61.2); | |
442 | // | |
443 | se->DefineSection(4,-71.6,59.7,61.2); | |
444 | se->DefineSection(5,-71.3,59.7,61.2); | |
445 | // | |
446 | TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3); | |
447 | // | |
448 | TGeoTube *si = new TGeoTube(56.9,58.8,1.); | |
449 | TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3); | |
450 | // | |
451 | // define reflection matrix | |
452 | // | |
4fa47888 | 453 | TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.); |
c1637e41 | 454 | // |
455 | cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1); | |
456 | // | |
a1ec4d07 | 457 | v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9)); |
458 | v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9)); | |
c1637e41 | 459 | v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1); |
460 | // | |
461 | // central membrane - 2 rings and a mylar membrane - assembly | |
462 | // | |
463 | TGeoTube *ih = new TGeoTube(81.05,84.05,0.3); | |
464 | TGeoTube *oh = new TGeoTube(250.,256.,.5); | |
465 | TGeoTube *mem = new TGeoTube(84.05,250,0.01); | |
466 | TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3); | |
467 | TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3); | |
468 | TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7); | |
469 | // | |
470 | TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM"); | |
471 | cm->AddNode(ihv,1); | |
472 | cm->AddNode(ohv,1); | |
473 | cm->AddNode(memv,1); | |
474 | v9->AddNode(cm,1); | |
475 | // | |
476 | // end caps - they are make as an assembly of single segments | |
477 | // containing both readout chambers | |
478 | // | |
d899e254 | 479 | Double_t openingAngle = 10.*TMath::DegToRad(); |
c1637e41 | 480 | Double_t thick=1.5; // rib |
d899e254 | 481 | Double_t shift = thick/TMath::Sin(openingAngle); |
c1637e41 | 482 | // |
d899e254 | 483 | Double_t lowEdge = 86.3; // hole in the wheel |
484 | Double_t upEdge = 240.4; // hole in the wheel | |
c1637e41 | 485 | // |
486 | new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.); | |
487 | // | |
488 | TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4); | |
489 | // | |
d899e254 | 490 | hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift); |
491 | hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift); | |
c1637e41 | 492 | // |
d899e254 | 493 | hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift); |
494 | hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift); | |
c1637e41 | 495 | // |
d899e254 | 496 | Double_t ys = shift*TMath::Sin(openingAngle); |
497 | Double_t xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 498 | TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.); |
499 | tr->RegisterYourself(); | |
500 | TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr"); | |
501 | TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3); | |
502 | TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2); | |
503 | bar->DefineSection(0,-3.,131.5-shift,136.5-shift); | |
504 | bar->DefineSection(1,1.5,131.5-shift,136.5-shift); | |
505 | TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3); | |
506 | TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment | |
507 | // | |
508 | ch->AddNode(sv,1); ch->AddNode(barv,1,tr); | |
509 | // | |
510 | // readout chambers | |
511 | // | |
512 | // IROC first | |
513 | // | |
514 | TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15); | |
515 | TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3); | |
516 | // empty space | |
517 | TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65); | |
518 | TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1); | |
519 | ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.)); | |
520 | //bars | |
521 | Double_t tga = (19.8328-12.3742)/39.3; | |
522 | Double_t xmin,xmax; | |
523 | xmin = 9.55*tga+12.3742; | |
524 | xmax = 9.95*tga+12.3742; | |
525 | TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
526 | TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3); | |
527 | empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9)); | |
528 | xmin=19.4*tga+12.3742; | |
529 | xmax=19.9*tga+12.3742; | |
530 | TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25); | |
531 | TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3); | |
532 | empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.)); | |
533 | xmin=29.35*tga+12.3742; | |
534 | xmax=29.75*tga+12.3742; | |
535 | TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
536 | TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3); | |
537 | empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9)); | |
538 | // | |
539 | // holes for connectors | |
540 | // | |
541 | TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc | |
542 | TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1); | |
d9e80aca | 543 | TString fileName(gSystem->Getenv("ALICE_ROOT")); |
544 | fileName += "/TPC/conn_iroc.dat"; | |
c1637e41 | 545 | ifstream in; |
d9e80aca | 546 | in.open(fileName.Data(), ios_base::in); // asci file |
c1637e41 | 547 | for(Int_t i =0;i<86;i++){ |
456cb019 | 548 | Double_t y = 3.99; |
c1637e41 | 549 | Double_t x,z,ang; |
550 | in>>x>>z>>ang; | |
456cb019 | 551 | z-=26.5; |
c1637e41 | 552 | TGeoRotation *rrr = new TGeoRotation(); |
553 | rrr->RotateY(ang); | |
554 | TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr); | |
555 | ibdv->AddNode(connv,i+1,trans); | |
556 | } | |
557 | in.close(); | |
558 | // "cap" | |
559 | new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825); | |
560 | // "hole" | |
561 | new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15); | |
562 | TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725); | |
563 | tr1->RegisterYourself(); | |
564 | TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1"); | |
565 | TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3); | |
566 | // | |
567 | // pad plane and wire fixations | |
568 | // | |
569 | TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso | |
570 | TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10"); | |
571 | TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4); | |
572 | TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.); | |
573 | TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4); | |
574 | TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.); | |
575 | TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4); | |
576 | // | |
577 | TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC"); | |
578 | // | |
579 | iroc->AddNode(ibdv,1); | |
580 | iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725)); | |
581 | iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725)); | |
582 | tga =(23.3521-14.5974)/49.65; | |
583 | Double_t xx = 24.825*tga+14.5974-0.6; | |
584 | iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725)); | |
585 | iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725)); | |
586 | // | |
587 | // OROC | |
588 | // | |
589 | TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65); | |
590 | TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3); | |
591 | TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65); | |
592 | TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1); | |
593 | obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.)); | |
594 | //horizontal bars | |
595 | tga=(38.5084-20.2938)/99.3; | |
596 | xmin=tga*10.2+20.2938; | |
597 | xmax=tga*10.6+20.2938; | |
598 | TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
599 | TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3); | |
600 | // | |
601 | xmin=22.55*tga+20.2938; | |
602 | xmax=24.15*tga+20.2938; | |
603 | TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
604 | TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3); | |
605 | // | |
606 | xmin=36.1*tga+20.2938; | |
607 | xmax=36.5*tga+20.2938; | |
608 | TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
609 | TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3); | |
610 | // | |
611 | xmin=49.0*tga+20.2938; | |
612 | xmax=50.6*tga+20.2938; | |
613 | TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
614 | TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3); | |
615 | // | |
616 | xmin=63.6*tga+20.2938; | |
617 | xmax=64.0*tga+20.2938; | |
618 | TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
619 | TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3); | |
620 | // | |
621 | xmin=75.5*tga+20.2938; | |
622 | xmax=77.15*tga+20.2938; | |
623 | TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
624 | TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3); | |
625 | // | |
626 | xmin=88.7*tga+20.2938; | |
627 | xmax=89.1*tga+20.2938; | |
628 | TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
629 | TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3); | |
630 | // | |
631 | oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25)); | |
632 | oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3)); | |
633 | oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35)); | |
634 | oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15)); | |
635 | oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15)); | |
636 | oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7)); | |
637 | oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25)); | |
638 | // vertical bars | |
639 | TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1); | |
640 | TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975); | |
641 | TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775); | |
642 | TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25); | |
643 | TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5); | |
644 | // | |
645 | TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3); | |
646 | TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3); | |
647 | TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3); | |
648 | TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3); | |
649 | TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3); | |
650 | // | |
651 | oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55)); | |
652 | oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55)); | |
653 | oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075)); | |
654 | oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525)); | |
655 | oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125)); | |
656 | oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275)); | |
657 | oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9)); | |
658 | oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45)); | |
659 | // | |
660 | // holes for connectors | |
661 | // | |
d9e80aca | 662 | fileName = gSystem->Getenv("ALICE_ROOT"); |
663 | fileName += "/TPC/conn_oroc.dat"; | |
664 | in.open(fileName.Data(), ios_base::in); // asci file | |
c1637e41 | 665 | for(Int_t i =0;i<78;i++){ |
666 | Double_t y =3.89; | |
667 | Double_t x,z,ang; | |
668 | Double_t x1,z1,x2,z2; | |
669 | in>>x>>z>>ang; | |
670 | Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad()); | |
671 | Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad()); | |
672 | // | |
673 | x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z; | |
674 | // | |
675 | TGeoRotation *rr = new TGeoRotation(); | |
676 | rr->RotateY(ang); | |
677 | z1-=54.95; | |
678 | z2-=54.95; | |
679 | TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr); | |
680 | TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr); | |
681 | obdv->AddNode(connv,i+1,trans1); | |
682 | obdv->AddNode(connv,i+79,trans2); | |
683 | } | |
684 | in.close(); | |
685 | // cap | |
686 | new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1); | |
687 | new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65); | |
688 | TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15); | |
689 | tr5->RegisterYourself(); | |
690 | TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5"); | |
691 | TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3); | |
692 | // | |
693 | // pad plane and wire fixations | |
694 | // | |
695 | TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1); | |
696 | TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4); | |
697 | // | |
698 | tga=(43.5239-23.3874)/114.2; | |
699 | TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.); | |
700 | TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.); | |
701 | xx = 57.1*tga+23.3874-0.7; | |
702 | TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4); | |
703 | TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4); | |
704 | // | |
705 | TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC"); | |
706 | // | |
707 | oroc->AddNode(obdv,1); | |
708 | oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15)); | |
709 | oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15)); | |
710 | oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15)); | |
711 | oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15)); | |
712 | // | |
713 | // now iroc and oroc are placed into a sector... | |
714 | // | |
a1ec4d07 | 715 | TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side |
716 | TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side | |
c1637e41 | 717 | TGeoRotation rot1("rot1",90.,90.,0.); |
718 | TGeoRotation rot2("rot2"); | |
719 | rot2.RotateY(10.); | |
720 | TGeoRotation *rot = new TGeoRotation("rot"); | |
721 | *rot=rot1*rot2; | |
722 | // | |
723 | Double_t x0,y0; | |
d899e254 | 724 | x0=110.2*TMath::Cos(openingAngle); |
725 | y0=110.2*TMath::Sin(openingAngle); | |
20527578 | 726 | TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side |
727 | TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side | |
d899e254 | 728 | x0=188.45*TMath::Cos(openingAngle); |
729 | y0=188.45*TMath::Sin(openingAngle); | |
20527578 | 730 | TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side |
731 | TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side | |
c1637e41 | 732 | // |
a1ec4d07 | 733 | // A-side |
c1637e41 | 734 | // |
a1ec4d07 | 735 | secta->AddNode(ch,1); |
736 | secta->AddNode(iroc,1,combi1a); | |
737 | secta->AddNode(oroc,1,combi2a); | |
c1637e41 | 738 | // |
a1ec4d07 | 739 | // C-side |
740 | // | |
741 | sectc->AddNode(ch,1); | |
742 | sectc->AddNode(iroc,1,combi1c); | |
743 | sectc->AddNode(oroc,1,combi2c); | |
744 | // | |
745 | // now I try to make wheels... | |
746 | // | |
747 | TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
748 | TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
c1637e41 | 749 | // |
750 | for(Int_t i =0;i<18;i++){ | |
751 | Double_t phi = (20.*i); | |
752 | TGeoRotation *r = new TGeoRotation(); | |
753 | r->RotateZ(phi); | |
a1ec4d07 | 754 | wheela->AddNode(secta,i+1,r); |
755 | wheelc->AddNode(sectc,i+1,r); | |
c1637e41 | 756 | |
757 | } | |
758 | // wheels in the drift volume! | |
c1637e41 | 759 | TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref); |
a1ec4d07 | 760 | v9->AddNode(wheela,1,combi3); |
761 | v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6)); | |
37831078 | 762 | |
c1637e41 | 763 | //_____________________________________________________________ |
764 | // service support wheel | |
765 | //_____________________________________________________________ | |
766 | TGeoPgon *sw = new TGeoPgon(0.,20.,1,2); | |
767 | sw->DefineSection(0,-4.,80.5,251.75); | |
768 | sw->DefineSection(1,4.,80.5,251.75); | |
769 | TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al | |
770 | // | |
771 | thick=1.; | |
d899e254 | 772 | shift = thick/TMath::Sin(openingAngle); |
c1637e41 | 773 | TGeoPgon *sh = new TGeoPgon(0.,20.,1,2); |
774 | sh->DefineSection(0,-4.,81.5-shift,250.75-shift); | |
775 | sh->DefineSection(1,4.,81.5-shift,250.75-shift); | |
776 | TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air | |
777 | // | |
74518339 | 778 | TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si"); |
779 | TGeoPgon *el = new TGeoPgon(0.,20.,1,2); | |
780 | el->DefineSection(0,-1.872,81.5-shift,250.75-shift); | |
781 | el->DefineSection(1,1.872,81.5-shift,250.75-shift); | |
782 | TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si | |
783 | // | |
784 | shv->AddNode(elv,1); | |
785 | // | |
d899e254 | 786 | ys = shift*TMath::Sin(openingAngle); |
787 | xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 788 | swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.)); |
789 | // cover | |
790 | TGeoPgon *co = new TGeoPgon(0.,20.,1,2); | |
791 | co->DefineSection(0,-0.5,77.,255.25); | |
792 | co->DefineSection(1,0.5,77.,255.25); | |
793 | TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al | |
794 | // hole in a cover | |
795 | TGeoPgon *coh = new TGeoPgon(0.,20.,1,2); | |
d899e254 | 796 | shift=4./TMath::Sin(openingAngle); |
c1637e41 | 797 | coh->DefineSection(0,-0.5,85.-shift,247.25-shift); |
798 | coh->DefineSection(1,0.5,85.-shift,247.25-shift); | |
799 | // | |
800 | TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1); | |
801 | // | |
d899e254 | 802 | ys = shift*TMath::Sin(openingAngle); |
803 | xs = shift*TMath::Cos(openingAngle); | |
c1637e41 | 804 | cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.)); |
805 | // | |
806 | // Sector as an Assembly | |
807 | // | |
808 | TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC"); | |
809 | swhs->AddNode(swv,1); | |
810 | swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5)); | |
811 | swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5)); | |
812 | // | |
813 | // SSW as an Assembly of sectors | |
814 | // | |
815 | TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL"); | |
816 | for(Int_t i =0;i<18;i++){ | |
817 | Double_t phi = (20.*i); | |
818 | TGeoRotation *r = new TGeoRotation(); | |
819 | r->RotateZ(phi); | |
820 | swheel->AddNode(swhs,i+1,r); | |
821 | } | |
822 | v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6)); | |
823 | v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6)); | |
824 | // | |
37831078 | 825 | //---------------------------------------------------------- |
826 | // TPc Support Rods - MAKROLON | |
827 | //---------------------------------------------------------- | |
c1637e41 | 828 | TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon"); |
829 | TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu"); | |
78134e48 | 830 | TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina"); |
831 | TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek"); | |
832 | TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water"); | |
c1637e41 | 833 | // upper and lower rods differ in length! |
834 | Double_t *upar; | |
835 | upar=NULL; | |
836 | gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar); | |
837 | upar=new Double_t [3]; | |
838 | upar[0]=1.8; | |
839 | upar[1]=2.2; | |
840 | ||
841 | // | |
842 | //HV rods - makrolon + 0.58cm (diameter) Cu | |
ae4806ca | 843 | TGeoTube *hvr = new TGeoTube(0.,2.2,126.64); |
c1637e41 | 844 | TGeoTube *hvc = new TGeoTube(0.,0.29,126.64); |
845 | // | |
846 | TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6); | |
847 | TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7); | |
848 | hvrv->AddNode(hvcv,1); | |
78134e48 | 849 | // |
850 | // resistor rods | |
851 | // | |
852 | TGeoTube *cri = new TGeoTube(0.,0.45,126.64); //inner | |
853 | TGeoTube *cro = new TGeoTube(0.,0.45,126.54); //outer | |
854 | TGeoTube *cwi = new TGeoTube(0.,0.15,126.64); // water inner | |
855 | TGeoTube *cwo = new TGeoTube(0.,0.15,126.54); // water outer | |
856 | // | |
857 | TGeoVolume *criv = new TGeoVolume("TPC_CR_I",cri,m10); | |
858 | TGeoVolume *crov = new TGeoVolume("TPC_CR_O",cro,m10); | |
859 | TGeoVolume *cwiv = new TGeoVolume("TPC_W_I",cwi,m11); | |
860 | TGeoVolume *cwov = new TGeoVolume("TPC_W_O",cwo,m11); | |
861 | // | |
862 | // ceramic rod with water | |
863 | // | |
864 | criv->AddNode(cwiv,1); | |
865 | crov->AddNode(cwov,1); | |
866 | // | |
867 | TGeoTube *pri =new TGeoTube(0.2,0.35,126.64); //inner | |
868 | TGeoTube *pro = new TGeoTube(0.2,0.35,126.54); //outer | |
869 | // | |
870 | // peek rod | |
871 | // | |
872 | TGeoVolume *priv = new TGeoVolume("TPC_PR_I",pri,m12); | |
873 | TGeoVolume *prov = new TGeoVolume("TPC_PR_O",pro,m12); | |
874 | // | |
875 | // resistor rods assembly | |
876 | // | |
be53328e | 877 | TGeoRotation *rotr = new TGeoRotation("rotr"); |
878 | rotr->RotateZ(-21.); | |
78134e48 | 879 | // |
880 | TGeoTube *rri = new TGeoTube(1.8,2.2,126.64);//inner | |
881 | TGeoTube *rro = new TGeoTube(1.8,2.2,126.54);//inner | |
882 | // | |
883 | TGeoVolume *rriv = new TGeoVolume("TPC_RR_I",rri,m6); | |
884 | TGeoVolume *rrov = new TGeoVolume("TPC_RR_O",rro,m6); | |
885 | // | |
a3d2be59 | 886 | TGeoVolumeAssembly *rrin = new TGeoVolumeAssembly("TPC_RROD_I"); |
887 | TGeoVolumeAssembly *rrou = new TGeoVolumeAssembly("TPC_RROD_O"); | |
888 | rrin->AddNode(rriv,1); | |
889 | rrin->AddNode(criv,1,new TGeoTranslation(0.5,0.866, 0.)); | |
890 | rrin->AddNode(criv,2,new TGeoTranslation(0.5,-0.866, 0.)); | |
891 | rrin->AddNode(priv,1); | |
892 | // | |
893 | rrou->AddNode(rrov,1); | |
894 | rrou->AddNode(crov,1,new TGeoTranslation(0.5,0.866, 0.)); | |
895 | rrou->AddNode(crov,2,new TGeoTranslation(0.5,-0.866, 0.)); | |
896 | rrou->AddNode(prov,1); | |
7281dc07 | 897 | for(Int_t i=0;i<18;i++){ |
c1637e41 | 898 | Double_t angle,x,y; |
899 | Double_t z,r; | |
900 | angle=TMath::DegToRad()*20.*(Double_t)i; | |
901 | r=81.5; | |
902 | x=r * TMath::Cos(angle); | |
903 | y=r * TMath::Sin(angle); | |
904 | upar[2]=126.64; //lower | |
905 | z= 126.96; | |
78134e48 | 906 | // |
907 | if(i==3){ | |
be53328e | 908 | v9->AddNode(rrin,1,new TGeoCombiTrans(x,y,z,rotr)); //A |
909 | v9->AddNode(rrin,2,new TGeoCombiTrans(x,y,-z,rotr)); //C | |
78134e48 | 910 | } |
911 | else { | |
912 | gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft | |
913 | gGeoManager->Node("TPC_Rod",i+19,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon | |
c1637e41 | 914 | } |
78134e48 | 915 | |
916 | ||
917 | // | |
c1637e41 | 918 | r=254.25; |
919 | x=r * TMath::Cos(angle); | |
920 | y=r * TMath::Sin(angle); | |
921 | upar[2]=126.54; //upper | |
922 | z=127.06; | |
78134e48 | 923 | if(i==15){ |
5042ab7d | 924 | //v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z));//A-side only |
925 | v9->AddNode(hvrv,1,new TGeoTranslation(x,y,127.14));//A-side only | |
78134e48 | 926 | gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); |
927 | } | |
928 | else if(i==11){ | |
be53328e | 929 | v9->AddNode(rrou,1,new TGeoCombiTrans(x,y,z,rotr)); //A |
930 | v9->AddNode(rrou,2,new TGeoCombiTrans(x,y,-z,rotr)); //C | |
78134e48 | 931 | } |
932 | else{ | |
933 | // | |
934 | gGeoManager->Node("TPC_Rod",i+37,"TPC_Drift",x,y,z,0,kTRUE,upar,3); | |
935 | gGeoManager->Node("TPC_Rod",i+55,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); | |
936 | } | |
37831078 | 937 | } |
938 | ||
bde68ab0 | 939 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); |
940 | alice->AddNode(v1,1); | |
941 | ||
37831078 | 942 | |
943 | ||
944 | } // end of function | |
37831078 | 945 | |
37831078 | 946 | |
947 | //_____________________________________________________________________________ | |
948 | void AliTPCv3::CreateMaterials() | |
949 | { | |
950 | // | |
951 | // Define materials for version 2 of the Time Projection Chamber | |
952 | // | |
953 | ||
954 | ||
955 | // | |
956 | AliTPC::CreateMaterials(); | |
957 | } | |
958 | ||
959 | //_____________________________________________________________________________ | |
960 | void AliTPCv3::Init() | |
961 | { | |
962 | // | |
963 | // Initialises version 3 of the TPC after that it has been built | |
964 | // | |
8d888a91 | 965 | //Int_t *idtmed = fIdtmed->GetArray(); |
4b0fdcad | 966 | |
967 | AliTPC::Init(); | |
968 | ||
c1637e41 | 969 | fIdSens=gMC->VolId("TPC_Drift"); // drift gas as a sensitive volume |
4b0fdcad | 970 | |
d9888f70 | 971 | gMC->SetMaxNStep(-30000); // max. number of steps increased |
4b0fdcad | 972 | |
098dfc1a | 973 | // specific energy loss is now set in galice.cuts |
4b0fdcad | 974 | |
13a8c8d7 | 975 | printf("%s: *** TPC version 3 initialized***\n",ClassName()); |
976 | ||
977 | printf("%s: Maximum number of steps = %d\n",ClassName(),gMC->GetMaxNStep()); | |
978 | ||
979 | // printf("*** TPC version 3 initialized ***\n"); | |
980 | // printf("Maximum number of steps = %d\n",gMC->GetMaxNStep()); | |
4b0fdcad | 981 | |
982 | // | |
983 | ||
984 | } | |
985 | ||
986 | //_____________________________________________________________________________ | |
987 | void AliTPCv3::StepManager() | |
988 | { | |
989 | // | |
990 | // Called for every step in the Time Projection Chamber | |
991 | // | |
992 | ||
993 | // | |
994 | // parameters used for the energy loss calculations | |
995 | // | |
73042f01 | 996 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
997 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
998 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
4b0fdcad | 999 | |
1000 | ||
73042f01 | 1001 | const Float_t kbig = 1.e10; |
4b0fdcad | 1002 | |
1003 | Int_t id,copy; | |
1004 | TLorentzVector pos; | |
e61fd20d | 1005 | Float_t hits[5]; |
4b0fdcad | 1006 | Int_t vol[2]; |
4b0fdcad | 1007 | |
1008 | vol[1]=0; | |
1009 | vol[0]=0; | |
1010 | ||
1011 | // | |
1012 | ||
73042f01 | 1013 | gMC->SetMaxStep(kbig); |
4b0fdcad | 1014 | |
1015 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
1016 | ||
1017 | Float_t charge = gMC->TrackCharge(); | |
1018 | ||
1019 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1020 | ||
1021 | ||
1022 | id=gMC->CurrentVolID(copy); | |
c1637e41 | 1023 | |
4b0fdcad | 1024 | |
37831078 | 1025 | if (id != fIdSens) return; |
4b0fdcad | 1026 | |
1027 | // | |
1028 | // charged particle is in the sensitive volume | |
1029 | // | |
1030 | ||
1031 | if(gMC->TrackStep() > 0) { | |
1032 | ||
1033 | ||
73042f01 | 1034 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
4b0fdcad | 1035 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
1036 | ||
1037 | gMC->TrackPosition(pos); | |
1038 | hits[0]=pos[0]; | |
1039 | hits[1]=pos[1]; | |
1040 | hits[2]=pos[2]; | |
1041 | ||
e61fd20d | 1042 | // Get also the track time for pileup simulation |
1043 | hits[4]=gMC->TrackTime(); | |
1044 | ||
4b0fdcad | 1045 | // |
1046 | // check the selected side of the TPC | |
1047 | // | |
1048 | ||
1049 | if(fSide && fSide*hits[2]<=0.) return; | |
1050 | ||
1051 | hits[3]=(Float_t)nel; | |
1052 | ||
1053 | // Add this hit | |
1054 | ||
5d12ce38 | 1055 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); //MI change |
4b0fdcad | 1056 | |
1057 | } | |
1058 | ||
1059 | // Stemax calculation for the next step | |
1060 | ||
1061 | Float_t pp; | |
1062 | TLorentzVector mom; | |
1063 | gMC->TrackMomentum(mom); | |
1064 | Float_t ptot=mom.Rho(); | |
73042f01 | 1065 | Float_t betaGamma = ptot/gMC->TrackMass(); |
4b0fdcad | 1066 | |
69e40cce | 1067 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 1068 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
4b0fdcad | 1069 | { |
73042f01 | 1070 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
4b0fdcad | 1071 | } |
1072 | else | |
1073 | { | |
7b562732 | 1074 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); |
b40afa5e | 1075 | pp=kprim*AliMathBase::BetheBlochAleph(betaGamma); |
4b0fdcad | 1076 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
1077 | } | |
1078 | ||
b9d0a01d | 1079 | Double_t rnd = gMC->GetRandom()->Rndm(); |
4b0fdcad | 1080 | |
1081 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); | |
1082 | ||
1083 | } |