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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" |
cc80f89e | 44 | #include "AliTPCDigitsArray.h" |
4c475d27 | 45 | #include "AliTPCParam.h" |
46 | #include "AliTPCParamSR.h" | |
4ed5dced | 47 | #include "AliTPCTrackHitsV2.h" |
116cbefd | 48 | #include "AliTPCv3.h" |
5d12ce38 | 49 | #include "AliMC.h" |
c1637e41 | 50 | #include "TGeoManager.h" |
51 | #include "TGeoVolume.h" | |
52 | #include "TGeoPcon.h" | |
53 | #include "TGeoTube.h" | |
54 | #include "TGeoPgon.h" | |
55 | #include "TGeoTrd1.h" | |
56 | #include "TGeoCompositeShape.h" | |
57 | #include "TGeoPara.h" | |
4b0fdcad | 58 | |
59 | ClassImp(AliTPCv3) | |
79575d04 | 60 | //_____________________________________________________________________________ |
61 | ||
62 | AliTPCv3::AliTPCv3(){ | |
63 | ||
64 | fHitType = 1; | |
65 | ||
66 | } | |
67 | ||
4b0fdcad | 68 | //_____________________________________________________________________________ |
69 | AliTPCv3::AliTPCv3(const char *name, const char *title) : | |
70 | AliTPC(name, title) | |
71 | { | |
72 | // | |
cc80f89e | 73 | // Standard constructor for Time Projection Chamber version 3 |
4b0fdcad | 74 | // |
75 | ||
76 | SetBufferSize(128000); | |
37831078 | 77 | fIdSens=0; |
73042f01 | 78 | |
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 | // |
c1637e41 | 117 | TGeoPcon *tpc = new TGeoPcon(0.,360.,18); //18 sections |
118 | tpc->DefineSection(0,-290.,77.,278.); | |
456cb019 | 119 | tpc->DefineSection(1,-259.6,70.,278.); |
4b0fdcad | 120 | // |
c1637e41 | 121 | tpc->DefineSection(2,-259.6,68.1,278.); |
122 | tpc->DefineSection(3,-253.6,68.1,278.); | |
4b0fdcad | 123 | // |
c1637e41 | 124 | tpc->DefineSection(4,-253.6,68.,278.); |
125 | tpc->DefineSection(5,-74.0,60.8,278.); | |
4b0fdcad | 126 | // |
c1637e41 | 127 | tpc->DefineSection(6,-74.0,60.1,278.); |
128 | tpc->DefineSection(7,-73.3,60.1,278.); | |
4b0fdcad | 129 | // |
c1637e41 | 130 | tpc->DefineSection(8,-73.3,56.9,278.); |
131 | tpc->DefineSection(9,73.3,56.9,278.); | |
37831078 | 132 | // |
c1637e41 | 133 | tpc->DefineSection(10,73.3,60.1,278.); |
134 | tpc->DefineSection(11,74.0,60.1,278.); | |
37831078 | 135 | // |
c1637e41 | 136 | tpc->DefineSection(12,74.0,60.8,278.); |
137 | tpc->DefineSection(13,253.6,65.5,278.); | |
79575d04 | 138 | // |
c1637e41 | 139 | tpc->DefineSection(14,253.6,65.6,278.); |
140 | tpc->DefineSection(15,259.6,65.6,278.); | |
141 | // | |
456cb019 | 142 | tpc->DefineSection(16,259.6,70.0,278.); |
c1637e41 | 143 | tpc->DefineSection(17,290.,77.,278.); |
144 | // | |
145 | TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air"); | |
146 | TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1); | |
147 | // | |
148 | // drift volume - sensitive volume, extended beyond the | |
149 | // endcaps, because of the alignment | |
150 | // | |
151 | TGeoPcon *dvol = new TGeoPcon(0.,360.,6); | |
152 | dvol->DefineSection(0,-260.,74.5,264.4); | |
153 | dvol->DefineSection(1,-253.6,74.5,264.4); | |
154 | // | |
155 | dvol->DefineSection(2,-253.6,76.6774,258.); | |
156 | dvol->DefineSection(3,253.6,76.6774,258.); | |
157 | // | |
158 | dvol->DefineSection(4,253.6,74.5,264.4); | |
159 | dvol->DefineSection(5,260.,74.5,264.4); | |
160 | // | |
161 | TGeoMedium *m5 = gGeoManager->GetMedium("TPC_Ne-CO2-N-2"); | |
162 | TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5); | |
163 | // | |
164 | v1->AddNode(v9,1); | |
165 | // | |
166 | // outer insulator | |
167 | // | |
168 | TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator | |
169 | // | |
170 | tpco->DefineSection(0,-256.6,264.8,278.); | |
171 | tpco->DefineSection(1,-253.6,264.8,278.); | |
172 | // | |
173 | tpco->DefineSection(2,-253.6,258.,278.); | |
174 | tpco->DefineSection(3,250.6,258.,278.); | |
175 | // | |
176 | tpco->DefineSection(4,250.6,258.,275.5); | |
177 | tpco->DefineSection(5,253.6,258.,275.5); | |
178 | // | |
179 | TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2"); | |
180 | TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2); | |
181 | // | |
182 | // outer containment vessel | |
183 | // | |
184 | TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel | |
185 | // | |
186 | tocv->DefineSection(0,-256.6,264.8,278.); | |
187 | tocv->DefineSection(1,-253.6,264.8,278.); | |
188 | // | |
189 | tocv->DefineSection(2,-253.6,274.8124,278.); | |
190 | tocv->DefineSection(3,247.6,274.8124,278.); | |
191 | // | |
192 | tocv->DefineSection(4,247.6,270.4,278.); | |
193 | tocv->DefineSection(5,250.6,270.4,278.); | |
194 | // | |
195 | TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al"); | |
196 | TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3); | |
197 | // | |
198 | TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy | |
199 | TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar | |
200 | TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2 | |
201 | TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex | |
202 | // | |
203 | TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy"); | |
204 | TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar"); | |
205 | TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2"); | |
206 | TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex"); | |
207 | // | |
208 | TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1); | |
209 | TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2); | |
210 | TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3); | |
211 | TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4); | |
37831078 | 212 | |
c1637e41 | 213 | //------------------------------------------------------- |
214 | // Tpc Outer Field Cage | |
215 | // daughters - composite (sandwich) | |
216 | //------------------------------------------------------- | |
37831078 | 217 | |
c1637e41 | 218 | TGeoPcon *tofc = new TGeoPcon(0.,360.,6); |
219 | // | |
220 | tofc->DefineSection(0,-253.6,258.,269.6); | |
221 | tofc->DefineSection(1,-250.6,258.,269.6); | |
222 | // | |
223 | tofc->DefineSection(2,-250.6,258.,260.0676); | |
224 | tofc->DefineSection(3,250.6,258.,260.0676); | |
225 | // | |
226 | tofc->DefineSection(4,250.6,258.,275.5); | |
227 | tofc->DefineSection(5,253.6,258.,275.5); | |
228 | // | |
229 | TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3); | |
230 | //sandwich | |
231 | TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar | |
232 | TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3 | |
233 | TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex | |
234 | // | |
235 | TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3"); | |
236 | // | |
237 | TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2); | |
238 | TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5); | |
239 | TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4); | |
240 | // | |
241 | // outer part - positioning | |
242 | // | |
243 | tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1); | |
244 | // | |
245 | tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1); | |
246 | // | |
456cb019 | 247 | v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1); |
c1637e41 | 248 | // |
249 | v2->AddNode(v3,1); v2->AddNode(v4,1); | |
250 | // | |
251 | v1->AddNode(v2,1); | |
252 | //----------------------------------------------------------- | |
37831078 | 253 | |
37831078 | 254 | |
37831078 | 255 | |
37831078 | 256 | |
37831078 | 257 | |
37831078 | 258 | |
c1637e41 | 259 | //-------------------------------------------------------------------- |
260 | // Tpc Inner INsulator (CO2) | |
261 | // the cones, the central drum and the inner f.c. sandwich with a piece | |
262 | // of the flane will be placed in the TPC | |
263 | //-------------------------------------------------------------------- | |
264 | TGeoPcon *tpci = new TGeoPcon(0.,360.,4); | |
265 | // | |
266 | tpci->DefineSection(0,-253.6,68.4,76.6774); | |
267 | tpci->DefineSection(1,-74.0,61.2,76.6774); | |
268 | // | |
269 | tpci->DefineSection(2,74.0,61.2,76.6774); | |
270 | // | |
271 | tpci->DefineSection(3,253.6,65.9,76.6774); | |
272 | // | |
273 | TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2); | |
274 | // | |
275 | // now the inner field cage - only part of flanges (2 copies) | |
276 | // | |
277 | TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5); | |
278 | TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3); | |
279 | // | |
280 | //--------------------------------------------------------- | |
281 | // Tpc Inner Containment vessel - Muon side | |
282 | //--------------------------------------------------------- | |
283 | TGeoPcon *tcms = new TGeoPcon(0.,360.,10); | |
284 | // | |
285 | tcms->DefineSection(0,-259.1,68.1,74.2); | |
286 | tcms->DefineSection(1,-253.6,68.1,74.2); | |
287 | // | |
288 | tcms->DefineSection(2,-253.6,68.1,68.4); | |
289 | tcms->DefineSection(3,-74.0,60.9,61.2); | |
290 | // | |
291 | tcms->DefineSection(4,-74.0,60.1,61.2); | |
292 | tcms->DefineSection(5,-73.3,60.1,61.2); | |
293 | // | |
294 | tcms->DefineSection(6,-73.3,56.9,61.2); | |
295 | tcms->DefineSection(7,-73.0,56.9,61.2); | |
296 | // | |
297 | tcms->DefineSection(8,-73.0,56.9,58.8); | |
298 | tcms->DefineSection(9,-71.3,56.9,58.8); | |
299 | // | |
300 | TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3); | |
37831078 | 301 | //----------------------------------------------- |
c1637e41 | 302 | // inner containment vessel - shaft side |
37831078 | 303 | //----------------------------------------------- |
c1637e41 | 304 | TGeoPcon *tcss = new TGeoPcon(0.,360.,10); |
305 | // | |
306 | tcss->DefineSection(0,71.3,56.9,58.8); | |
307 | tcss->DefineSection(1,73.0,56.9,58.8); | |
308 | // | |
309 | tcss->DefineSection(2,73.0,56.9,61.2); | |
310 | tcss->DefineSection(3,73.3,56.9,61.2); | |
311 | // | |
312 | tcss->DefineSection(4,73.3,60.1,61.2); | |
313 | tcss->DefineSection(5,74.0,60.1,61.2); | |
314 | // | |
315 | tcss->DefineSection(6,74.0,60.9,61.2); | |
316 | tcss->DefineSection(7,253.6,65.6,65.9); | |
317 | // | |
318 | tcss->DefineSection(8,253.6,65.6,74.2); | |
319 | tcss->DefineSection(9,258.1,65.6,74.2); | |
320 | // | |
321 | TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3); | |
322 | //----------------------------------------------- | |
323 | // Inner field cage | |
324 | // define 4 parts and make an assembly | |
325 | //----------------------------------------------- | |
326 | // part1 - Al - 2 copies | |
327 | TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75); | |
328 | TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3); | |
329 | // sandwich - outermost parts - 2 copies | |
330 | TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns | |
331 | TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns | |
332 | TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns | |
333 | TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm | |
334 | // | |
335 | TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2); | |
336 | TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3); | |
337 | TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5); | |
338 | TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4); | |
339 | // | |
340 | // middle parts - 2 copies | |
341 | TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns | |
342 | TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns | |
343 | TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns | |
344 | TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm | |
345 | // | |
346 | TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2); | |
347 | TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3); | |
348 | TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5); | |
349 | TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4); | |
350 | // central part - 1 copy | |
351 | TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns | |
352 | TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns | |
353 | TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm | |
354 | // | |
355 | TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2); | |
356 | TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5); | |
357 | TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4); | |
358 | // | |
359 | // inner part - positioning | |
360 | // | |
361 | // creating a sandwich | |
362 | tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1); | |
363 | // | |
364 | tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1); | |
365 | // | |
366 | tv10->AddNode(tv11,1); tv11->AddNode(tv12,1); | |
367 | // | |
368 | TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); | |
369 | // | |
370 | tv100->AddNode(tv10,1); | |
371 | tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); | |
372 | tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); | |
373 | tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); | |
374 | tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925)); | |
375 | tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85)); | |
376 | tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85)); | |
377 | // | |
378 | v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1)); | |
379 | v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1)); | |
380 | v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1); | |
381 | v9->AddNode(tv100,1); | |
382 | // | |
383 | // central drum | |
384 | // | |
385 | // flange + sandwich | |
386 | // | |
387 | TGeoPcon *cfl = new TGeoPcon(0.,360.,6); | |
388 | cfl->DefineSection(0,-71.1,59.7,61.2); | |
389 | cfl->DefineSection(1,-68.6,59.7,61.2); | |
390 | // | |
391 | cfl->DefineSection(2,-68.6,60.6324,61.2); | |
392 | cfl->DefineSection(3,68.6,60.6324,61.2); | |
393 | // | |
394 | cfl->DefineSection(4,68.6,59.7,61.2); | |
395 | cfl->DefineSection(5,71.1,59.7,61.2); | |
396 | // | |
397 | TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3); | |
398 | // sandwich | |
399 | TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1); | |
400 | TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1); | |
401 | TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1); | |
402 | // | |
403 | TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1"); | |
404 | TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar | |
405 | TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1 | |
406 | TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex | |
407 | // | |
408 | // seals for central drum 2 copies | |
409 | // | |
410 | TGeoTube *cs = new TGeoTube(56.9,61.2,0.1); | |
411 | TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar"); | |
412 | TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7); | |
413 | v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.)); | |
414 | v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.)); | |
415 | // | |
416 | // seal collars | |
417 | TGeoPcon *se = new TGeoPcon(0.,360.,6); | |
418 | se->DefineSection(0,-72.8,59.7,61.2); | |
419 | se->DefineSection(1,-72.3,59.7,61.2); | |
420 | // | |
421 | se->DefineSection(2,-72.3,58.85,61.2); | |
422 | se->DefineSection(3,-71.6,58.85,61.2); | |
423 | // | |
424 | se->DefineSection(4,-71.6,59.7,61.2); | |
425 | se->DefineSection(5,-71.3,59.7,61.2); | |
426 | // | |
427 | TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3); | |
428 | // | |
429 | TGeoTube *si = new TGeoTube(56.9,58.8,1.); | |
430 | TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3); | |
431 | // | |
432 | // define reflection matrix | |
433 | // | |
434 | TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,270.,180.,0.); | |
435 | // | |
436 | cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1); | |
437 | // | |
ae4806ca | 438 | v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-70.1)); |
439 | v1->AddNode(siv,2,new TGeoTranslation(0.,0.,70.1)); | |
c1637e41 | 440 | v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1); |
441 | // | |
442 | // central membrane - 2 rings and a mylar membrane - assembly | |
443 | // | |
444 | TGeoTube *ih = new TGeoTube(81.05,84.05,0.3); | |
445 | TGeoTube *oh = new TGeoTube(250.,256.,.5); | |
446 | TGeoTube *mem = new TGeoTube(84.05,250,0.01); | |
447 | TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3); | |
448 | TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3); | |
449 | TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7); | |
450 | // | |
451 | TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM"); | |
452 | cm->AddNode(ihv,1); | |
453 | cm->AddNode(ohv,1); | |
454 | cm->AddNode(memv,1); | |
455 | v9->AddNode(cm,1); | |
456 | // | |
457 | // end caps - they are make as an assembly of single segments | |
458 | // containing both readout chambers | |
459 | // | |
460 | Double_t OpeningAngle = 10.*TMath::DegToRad(); | |
461 | Double_t thick=1.5; // rib | |
462 | Double_t shift = thick/TMath::Sin(OpeningAngle); | |
463 | // | |
464 | Double_t LowEdge = 86.3; // hole in the wheel | |
465 | Double_t UpEdge = 240.4; // hole in the wheel | |
466 | // | |
467 | new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.); | |
468 | // | |
469 | TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4); | |
470 | // | |
471 | hole->DefineSection(0,-3.5,LowEdge-shift,UpEdge-shift); | |
472 | hole->DefineSection(1,-1.5,LowEdge-shift,UpEdge-shift); | |
473 | // | |
474 | hole->DefineSection(2,-1.5,LowEdge-shift,UpEdge+3.-shift); | |
475 | hole->DefineSection(3,3.5,LowEdge-shift,UpEdge+3.-shift); | |
476 | // | |
477 | Double_t ys = shift*TMath::Sin(OpeningAngle); | |
478 | Double_t xs = shift*TMath::Cos(OpeningAngle); | |
479 | TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.); | |
480 | tr->RegisterYourself(); | |
481 | TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr"); | |
482 | TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3); | |
483 | TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2); | |
484 | bar->DefineSection(0,-3.,131.5-shift,136.5-shift); | |
485 | bar->DefineSection(1,1.5,131.5-shift,136.5-shift); | |
486 | TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3); | |
487 | TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment | |
488 | // | |
489 | ch->AddNode(sv,1); ch->AddNode(barv,1,tr); | |
490 | // | |
491 | // readout chambers | |
492 | // | |
493 | // IROC first | |
494 | // | |
495 | TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15); | |
496 | TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3); | |
497 | // empty space | |
498 | TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65); | |
499 | TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1); | |
500 | ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.)); | |
501 | //bars | |
502 | Double_t tga = (19.8328-12.3742)/39.3; | |
503 | Double_t xmin,xmax; | |
504 | xmin = 9.55*tga+12.3742; | |
505 | xmax = 9.95*tga+12.3742; | |
506 | TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
507 | TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3); | |
508 | empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9)); | |
509 | xmin=19.4*tga+12.3742; | |
510 | xmax=19.9*tga+12.3742; | |
511 | TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25); | |
512 | TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3); | |
513 | empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.)); | |
514 | xmin=29.35*tga+12.3742; | |
515 | xmax=29.75*tga+12.3742; | |
516 | TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
517 | TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3); | |
518 | empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9)); | |
519 | // | |
520 | // holes for connectors | |
521 | // | |
522 | TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc | |
523 | TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1); | |
d9e80aca | 524 | TString fileName(gSystem->Getenv("ALICE_ROOT")); |
525 | fileName += "/TPC/conn_iroc.dat"; | |
c1637e41 | 526 | ifstream in; |
d9e80aca | 527 | in.open(fileName.Data(), ios_base::in); // asci file |
c1637e41 | 528 | for(Int_t i =0;i<86;i++){ |
456cb019 | 529 | Double_t y = 3.99; |
c1637e41 | 530 | Double_t x,z,ang; |
531 | in>>x>>z>>ang; | |
456cb019 | 532 | z-=26.5; |
c1637e41 | 533 | TGeoRotation *rrr = new TGeoRotation(); |
534 | rrr->RotateY(ang); | |
535 | TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr); | |
536 | ibdv->AddNode(connv,i+1,trans); | |
537 | } | |
538 | in.close(); | |
539 | // "cap" | |
540 | new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825); | |
541 | // "hole" | |
542 | new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15); | |
543 | TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725); | |
544 | tr1->RegisterYourself(); | |
545 | TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1"); | |
546 | TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3); | |
547 | // | |
548 | // pad plane and wire fixations | |
549 | // | |
550 | TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso | |
551 | TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10"); | |
552 | TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4); | |
553 | TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.); | |
554 | TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4); | |
555 | TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.); | |
556 | TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4); | |
557 | // | |
558 | TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC"); | |
559 | // | |
560 | iroc->AddNode(ibdv,1); | |
561 | iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725)); | |
562 | iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725)); | |
563 | tga =(23.3521-14.5974)/49.65; | |
564 | Double_t xx = 24.825*tga+14.5974-0.6; | |
565 | iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725)); | |
566 | iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725)); | |
567 | // | |
568 | // OROC | |
569 | // | |
570 | TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65); | |
571 | TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3); | |
572 | TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65); | |
573 | TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1); | |
574 | obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.)); | |
575 | //horizontal bars | |
576 | tga=(38.5084-20.2938)/99.3; | |
577 | xmin=tga*10.2+20.2938; | |
578 | xmax=tga*10.6+20.2938; | |
579 | TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
580 | TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3); | |
581 | // | |
582 | xmin=22.55*tga+20.2938; | |
583 | xmax=24.15*tga+20.2938; | |
584 | TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
585 | TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3); | |
586 | // | |
587 | xmin=36.1*tga+20.2938; | |
588 | xmax=36.5*tga+20.2938; | |
589 | TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
590 | TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3); | |
591 | // | |
592 | xmin=49.0*tga+20.2938; | |
593 | xmax=50.6*tga+20.2938; | |
594 | TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
595 | TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3); | |
596 | // | |
597 | xmin=63.6*tga+20.2938; | |
598 | xmax=64.0*tga+20.2938; | |
599 | TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
600 | TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3); | |
601 | // | |
602 | xmin=75.5*tga+20.2938; | |
603 | xmax=77.15*tga+20.2938; | |
604 | TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
605 | TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3); | |
606 | // | |
607 | xmin=88.7*tga+20.2938; | |
608 | xmax=89.1*tga+20.2938; | |
609 | TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
610 | TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3); | |
611 | // | |
612 | oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25)); | |
613 | oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3)); | |
614 | oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35)); | |
615 | oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15)); | |
616 | oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15)); | |
617 | oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7)); | |
618 | oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25)); | |
619 | // vertical bars | |
620 | TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1); | |
621 | TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975); | |
622 | TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775); | |
623 | TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25); | |
624 | TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5); | |
625 | // | |
626 | TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3); | |
627 | TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3); | |
628 | TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3); | |
629 | TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3); | |
630 | TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3); | |
631 | // | |
632 | oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55)); | |
633 | oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55)); | |
634 | oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075)); | |
635 | oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525)); | |
636 | oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125)); | |
637 | oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275)); | |
638 | oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9)); | |
639 | oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45)); | |
640 | // | |
641 | // holes for connectors | |
642 | // | |
d9e80aca | 643 | fileName = gSystem->Getenv("ALICE_ROOT"); |
644 | fileName += "/TPC/conn_oroc.dat"; | |
645 | in.open(fileName.Data(), ios_base::in); // asci file | |
c1637e41 | 646 | for(Int_t i =0;i<78;i++){ |
647 | Double_t y =3.89; | |
648 | Double_t x,z,ang; | |
649 | Double_t x1,z1,x2,z2; | |
650 | in>>x>>z>>ang; | |
651 | Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad()); | |
652 | Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad()); | |
653 | // | |
654 | x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z; | |
655 | // | |
656 | TGeoRotation *rr = new TGeoRotation(); | |
657 | rr->RotateY(ang); | |
658 | z1-=54.95; | |
659 | z2-=54.95; | |
660 | TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr); | |
661 | TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr); | |
662 | obdv->AddNode(connv,i+1,trans1); | |
663 | obdv->AddNode(connv,i+79,trans2); | |
664 | } | |
665 | in.close(); | |
666 | // cap | |
667 | new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1); | |
668 | new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65); | |
669 | TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15); | |
670 | tr5->RegisterYourself(); | |
671 | TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5"); | |
672 | TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3); | |
673 | // | |
674 | // pad plane and wire fixations | |
675 | // | |
676 | TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1); | |
677 | TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4); | |
678 | // | |
679 | tga=(43.5239-23.3874)/114.2; | |
680 | TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.); | |
681 | TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.); | |
682 | xx = 57.1*tga+23.3874-0.7; | |
683 | TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4); | |
684 | TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4); | |
685 | // | |
686 | TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC"); | |
687 | // | |
688 | oroc->AddNode(obdv,1); | |
689 | oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15)); | |
690 | oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15)); | |
691 | oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15)); | |
692 | oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15)); | |
693 | // | |
694 | // now iroc and oroc are placed into a sector... | |
695 | // | |
696 | TGeoVolumeAssembly *sect = new TGeoVolumeAssembly("TPC_SECT"); | |
697 | TGeoRotation rot1("rot1",90.,90.,0.); | |
698 | TGeoRotation rot2("rot2"); | |
699 | rot2.RotateY(10.); | |
700 | TGeoRotation *rot = new TGeoRotation("rot"); | |
701 | *rot=rot1*rot2; | |
702 | // | |
703 | Double_t x0,y0; | |
704 | x0=110.2*TMath::Cos(OpeningAngle); | |
705 | y0=110.2*TMath::Sin(OpeningAngle); | |
706 | TGeoCombiTrans *combi1 = new TGeoCombiTrans("combi1",x0,y0,1.09,rot); | |
707 | x0=188.45*TMath::Cos(OpeningAngle); | |
708 | y0=188.45*TMath::Sin(OpeningAngle); | |
709 | TGeoCombiTrans *combi2 = new TGeoCombiTrans("combi2",x0,y0,0.99,rot); | |
710 | // | |
711 | sect->AddNode(ch,1); | |
712 | sect->AddNode(iroc,1,combi1); | |
713 | sect->AddNode(oroc,1,combi2); | |
714 | // | |
715 | // segment is ready... | |
716 | // now I try to make a wheel... | |
717 | // | |
718 | TGeoVolumeAssembly *wheel = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
719 | // | |
720 | for(Int_t i =0;i<18;i++){ | |
721 | Double_t phi = (20.*i); | |
722 | TGeoRotation *r = new TGeoRotation(); | |
723 | r->RotateZ(phi); | |
724 | wheel->AddNode(sect,i+1,r); | |
725 | ||
726 | } | |
727 | // wheels in the drift volume! | |
728 | v9->AddNode(wheel,1,new TGeoTranslation(0.,0.,-256.6)); | |
729 | TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref); | |
730 | v9->AddNode(wheel,2,combi3); | |
37831078 | 731 | |
c1637e41 | 732 | //_____________________________________________________________ |
733 | // service support wheel | |
734 | //_____________________________________________________________ | |
735 | TGeoPgon *sw = new TGeoPgon(0.,20.,1,2); | |
736 | sw->DefineSection(0,-4.,80.5,251.75); | |
737 | sw->DefineSection(1,4.,80.5,251.75); | |
738 | TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al | |
739 | // | |
740 | thick=1.; | |
741 | shift = thick/TMath::Sin(OpeningAngle); | |
742 | TGeoPgon *sh = new TGeoPgon(0.,20.,1,2); | |
743 | sh->DefineSection(0,-4.,81.5-shift,250.75-shift); | |
744 | sh->DefineSection(1,4.,81.5-shift,250.75-shift); | |
745 | TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air | |
746 | // | |
74518339 | 747 | TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si"); |
748 | TGeoPgon *el = new TGeoPgon(0.,20.,1,2); | |
749 | el->DefineSection(0,-1.872,81.5-shift,250.75-shift); | |
750 | el->DefineSection(1,1.872,81.5-shift,250.75-shift); | |
751 | TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si | |
752 | // | |
753 | shv->AddNode(elv,1); | |
754 | // | |
c1637e41 | 755 | ys = shift*TMath::Sin(OpeningAngle); |
756 | xs = shift*TMath::Cos(OpeningAngle); | |
757 | swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.)); | |
758 | // cover | |
759 | TGeoPgon *co = new TGeoPgon(0.,20.,1,2); | |
760 | co->DefineSection(0,-0.5,77.,255.25); | |
761 | co->DefineSection(1,0.5,77.,255.25); | |
762 | TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al | |
763 | // hole in a cover | |
764 | TGeoPgon *coh = new TGeoPgon(0.,20.,1,2); | |
765 | shift=4./TMath::Sin(OpeningAngle); | |
766 | coh->DefineSection(0,-0.5,85.-shift,247.25-shift); | |
767 | coh->DefineSection(1,0.5,85.-shift,247.25-shift); | |
768 | // | |
769 | TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1); | |
770 | // | |
771 | ys = shift*TMath::Sin(OpeningAngle); | |
772 | xs = shift*TMath::Cos(OpeningAngle); | |
773 | cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.)); | |
774 | // | |
775 | // Sector as an Assembly | |
776 | // | |
777 | TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC"); | |
778 | swhs->AddNode(swv,1); | |
779 | swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5)); | |
780 | swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5)); | |
781 | // | |
782 | // SSW as an Assembly of sectors | |
783 | // | |
784 | TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL"); | |
785 | for(Int_t i =0;i<18;i++){ | |
786 | Double_t phi = (20.*i); | |
787 | TGeoRotation *r = new TGeoRotation(); | |
788 | r->RotateZ(phi); | |
789 | swheel->AddNode(swhs,i+1,r); | |
790 | } | |
791 | v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6)); | |
792 | v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6)); | |
793 | // | |
37831078 | 794 | //---------------------------------------------------------- |
795 | // TPc Support Rods - MAKROLON | |
796 | //---------------------------------------------------------- | |
c1637e41 | 797 | TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon"); |
798 | TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu"); | |
799 | // upper and lower rods differ in length! | |
800 | Double_t *upar; | |
801 | upar=NULL; | |
802 | gGeoManager->Volume("TPC_Rod","TUBE",m6->GetId(),upar); | |
803 | upar=new Double_t [3]; | |
804 | upar[0]=1.8; | |
805 | upar[1]=2.2; | |
806 | ||
807 | // | |
808 | //HV rods - makrolon + 0.58cm (diameter) Cu | |
ae4806ca | 809 | TGeoTube *hvr = new TGeoTube(0.,2.2,126.64); |
c1637e41 | 810 | TGeoTube *hvc = new TGeoTube(0.,0.29,126.64); |
811 | // | |
812 | TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6); | |
813 | TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7); | |
814 | hvrv->AddNode(hvcv,1); | |
7281dc07 | 815 | for(Int_t i=0;i<18;i++){ |
c1637e41 | 816 | Double_t angle,x,y; |
817 | Double_t z,r; | |
818 | angle=TMath::DegToRad()*20.*(Double_t)i; | |
819 | r=81.5; | |
820 | x=r * TMath::Cos(angle); | |
821 | y=r * TMath::Sin(angle); | |
822 | upar[2]=126.64; //lower | |
823 | z= 126.96; | |
824 | if(i==15){ | |
825 | v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z)); | |
826 | v9->AddNode(hvrv,2,new TGeoTranslation(x,y,-z)); | |
79575d04 | 827 | } |
c1637e41 | 828 | else{ |
829 | gGeoManager->Node("TPC_Rod",i+1,"TPC_Drift",x,y,z,0,kTRUE,upar,3);//shaft | |
830 | gGeoManager->Node("TPC_Rod",i+18,"TPC_Drift",x,y,-z,0,kTRUE,upar,3);//muon | |
831 | } | |
832 | r=254.25; | |
833 | x=r * TMath::Cos(angle); | |
834 | y=r * TMath::Sin(angle); | |
835 | upar[2]=126.54; //upper | |
836 | z=127.06; | |
837 | gGeoManager->Node("TPC_Rod",i+36,"TPC_Drift",x,y,z,0,kTRUE,upar,3); | |
838 | gGeoManager->Node("TPC_Rod",i+54,"TPC_Drift",x,y,-z,0,kTRUE,upar,3); | |
37831078 | 839 | } |
840 | ||
bde68ab0 | 841 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); |
842 | alice->AddNode(v1,1); | |
843 | ||
37831078 | 844 | |
845 | ||
846 | } // end of function | |
37831078 | 847 | |
848 | //_____________________________________________________________________________ | |
849 | void AliTPCv3::DrawDetector() | |
850 | { | |
851 | // | |
79575d04 | 852 | // Draw a shaded view of the Time Projection Chamber version 3 |
37831078 | 853 | // |
854 | ||
855 | ||
856 | // Set everything unseen | |
857 | gMC->Gsatt("*", "seen", -1); | |
858 | // | |
859 | // Set ALIC mother transparent | |
860 | gMC->Gsatt("ALIC","SEEN",0); | |
861 | // | |
862 | // Set the volumes visible | |
863 | // | |
864 | ||
865 | gMC->Gsatt("TPC ","SEEN",0); | |
866 | gMC->Gsatt("TOIN","SEEN",1); | |
867 | gMC->Gsatt("TOIN","COLO",7); | |
37831078 | 868 | gMC->Gsatt("TOCV","SEEN",1); |
869 | gMC->Gsatt("TOCV","COLO",4); | |
870 | gMC->Gsatt("TSA1","SEEN",0); | |
871 | gMC->Gsatt("TSA2","SEEN",0); | |
872 | gMC->Gsatt("TSA3","SEEN",0); | |
79575d04 | 873 | gMC->Gsatt("TSA4","SEEN",0); |
874 | gMC->Gsatt("TSA5","SEEN",0); | |
37831078 | 875 | gMC->Gsatt("TOFC","SEEN",1); |
876 | gMC->Gsatt("TOFC","COLO",4); | |
37831078 | 877 | gMC->Gsatt("TSA6","SEEN",0); |
878 | gMC->Gsatt("TSA7","SEEN",0); | |
79575d04 | 879 | gMC->Gsatt("TSA8","SEEN",0); |
37831078 | 880 | gMC->Gsatt("TIIN","SEEN",1); |
79575d04 | 881 | gMC->Gsatt("TIIN","COLO",7); |
882 | gMC->Gsatt("TII1","SEEN",0); | |
883 | gMC->Gsatt("TIFC","SEEN",1); | |
884 | gMC->Gsatt("TIFC","COLO",4); | |
885 | gMC->Gsatt("TSA9","SEEN",0); | |
37831078 | 886 | gMC->Gsatt("TS10","SEEN",0); |
887 | gMC->Gsatt("TS11","SEEN",0); | |
888 | gMC->Gsatt("TS12","SEEN",0); | |
37831078 | 889 | gMC->Gsatt("TS13","SEEN",0); |
890 | gMC->Gsatt("TS14","SEEN",0); | |
79575d04 | 891 | gMC->Gsatt("TICC","SEEN",0); |
892 | gMC->Gsatt("TICM","SEEN",0); | |
37831078 | 893 | gMC->Gsatt("TS15","SEEN",0); |
894 | gMC->Gsatt("TS16","SEEN",0); | |
37831078 | 895 | gMC->Gsatt("TS17","SEEN",0); |
79575d04 | 896 | gMC->Gsatt("TS18","SEEN",0); |
897 | gMC->Gsatt("TS19","SEEN",0); | |
898 | gMC->Gsatt("TPJ1","SEEN",0); | |
899 | gMC->Gsatt("TPJ2","SEEN",0); | |
900 | gMC->Gsatt("TICS","SEEN",0); | |
901 | gMC->Gsatt("TDGS","SEEN",0); | |
37831078 | 902 | gMC->Gsatt("TIRC","SEEN",0); |
903 | gMC->Gsatt("TIC1","SEEN",1); | |
904 | gMC->Gsatt("TIPP","SEEN",0); | |
905 | gMC->Gsatt("TIC3","SEEN",0); | |
906 | gMC->Gsatt("TRCE","SEEN",0); | |
907 | gMC->Gsatt("TPSC","SEEN",0); | |
79575d04 | 908 | gMC->Gsatt("TPCC","SEEN",0); |
37831078 | 909 | gMC->Gsatt("TORC","SEEN",0); |
910 | gMC->Gsatt("TOPP","SEEN",0); | |
911 | gMC->Gsatt("TOC3","SEEN",0); | |
912 | gMC->Gsatt("TOC1","SEEN",1); | |
913 | gMC->Gsatt("TSSW","SEEN",1); | |
914 | gMC->Gsatt("TSWC","SEEN",1); | |
37831078 | 915 | gMC->Gsatt("TSSW","COLO",3); |
916 | gMC->Gsatt("TSWC","COLO",3); | |
917 | gMC->Gsatt("TSCE","COLO",6); | |
79575d04 | 918 | gMC->Gsatt("TSCE","SEEN",1); |
37831078 | 919 | gMC->Gsatt("TWES","SEEN",0); |
920 | gMC->Gsatt("TSWB","SEEN",0); | |
921 | gMC->Gsatt("TPEL","SEEN",0); | |
922 | gMC->Gsatt("TPMW","SEEN",1); | |
37831078 | 923 | gMC->Gsatt("TESR","SEEN",1); |
924 | gMC->Gsatt("TPMW","COLO",12); | |
37831078 | 925 | gMC->Gsatt("TIC1","COLO",5); |
79575d04 | 926 | gMC->Gsatt("TOC1","COLO",5); |
37831078 | 927 | gMC->Gsatt("TESB","SEEN",0); |
37831078 | 928 | gMC->Gsatt("THVM","SEEN",1); |
929 | gMC->Gsatt("THVM","COLO",11); | |
79575d04 | 930 | gMC->Gsatt("THVH","SEEN",0); |
931 | gMC->Gsatt("TPSR","SEEN",0); | |
37831078 | 932 | gMC->Gsatt("THVL","SEEN",0); |
79575d04 | 933 | gMC->Gsatt("THVC","SEEN",0); |
37831078 | 934 | gMC->Gsatt("THVE","SEEN",0); |
935 | gMC->Gsatt("THVR","SEEN",0); | |
936 | ||
937 | // | |
938 | gMC->Gdopt("hide", "on"); | |
939 | gMC->Gdopt("shad", "on"); | |
940 | gMC->Gsatt("*", "fill", 7); | |
941 | gMC->SetClipBox("."); | |
942 | gMC->SetClipBox("TPMW",-300,300,-300,300,254.,270.); | |
943 | gMC->SetClipBox("TESR",-300,300,-300,300,254.,270.); | |
944 | gMC->SetClipBox("TSSW",-300,300,-300,300,283.,284.); | |
945 | gMC->SetClipBox("TSWC",-300,300,-300,300,283.,284.); | |
946 | gMC->SetClipBox("*", 0, 300, -300, 300, -290, 290); | |
947 | gMC->DefaultRange(); | |
948 | gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .025, .025); | |
949 | gMC->Gdhead(1111, "Time Projection Chamber"); | |
950 | gMC->Gdman(18, 4, "MAN"); | |
951 | gMC->Gdopt("hide","off"); | |
952 | } | |
953 | ||
954 | //_____________________________________________________________________________ | |
955 | void AliTPCv3::CreateMaterials() | |
956 | { | |
957 | // | |
958 | // Define materials for version 2 of the Time Projection Chamber | |
959 | // | |
960 | ||
961 | ||
962 | // | |
963 | AliTPC::CreateMaterials(); | |
964 | } | |
965 | ||
966 | //_____________________________________________________________________________ | |
967 | void AliTPCv3::Init() | |
968 | { | |
969 | // | |
970 | // Initialises version 3 of the TPC after that it has been built | |
971 | // | |
972 | Int_t *idtmed = fIdtmed->GetArray(); | |
4b0fdcad | 973 | |
974 | AliTPC::Init(); | |
975 | ||
c1637e41 | 976 | fIdSens=gMC->VolId("TPC_Drift"); // drift gas as a sensitive volume |
4b0fdcad | 977 | |
978 | gMC->SetMaxNStep(30000); // max. number of steps increased | |
979 | ||
37831078 | 980 | gMC->Gstpar(idtmed[2],"LOSS",5); |
4b0fdcad | 981 | |
13a8c8d7 | 982 | printf("%s: *** TPC version 3 initialized***\n",ClassName()); |
983 | ||
984 | printf("%s: Maximum number of steps = %d\n",ClassName(),gMC->GetMaxNStep()); | |
985 | ||
986 | // printf("*** TPC version 3 initialized ***\n"); | |
987 | // printf("Maximum number of steps = %d\n",gMC->GetMaxNStep()); | |
4b0fdcad | 988 | |
989 | // | |
990 | ||
991 | } | |
992 | ||
993 | //_____________________________________________________________________________ | |
994 | void AliTPCv3::StepManager() | |
995 | { | |
996 | // | |
997 | // Called for every step in the Time Projection Chamber | |
998 | // | |
999 | ||
1000 | // | |
1001 | // parameters used for the energy loss calculations | |
1002 | // | |
73042f01 | 1003 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm |
1004 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
1005 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
4b0fdcad | 1006 | |
1007 | ||
73042f01 | 1008 | const Float_t kbig = 1.e10; |
4b0fdcad | 1009 | |
1010 | Int_t id,copy; | |
1011 | TLorentzVector pos; | |
e61fd20d | 1012 | Float_t hits[5]; |
4b0fdcad | 1013 | Int_t vol[2]; |
4b0fdcad | 1014 | |
1015 | vol[1]=0; | |
1016 | vol[0]=0; | |
1017 | ||
1018 | // | |
1019 | ||
73042f01 | 1020 | gMC->SetMaxStep(kbig); |
4b0fdcad | 1021 | |
1022 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
1023 | ||
1024 | Float_t charge = gMC->TrackCharge(); | |
1025 | ||
1026 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
1027 | ||
1028 | ||
1029 | id=gMC->CurrentVolID(copy); | |
c1637e41 | 1030 | |
4b0fdcad | 1031 | |
37831078 | 1032 | if (id != fIdSens) return; |
4b0fdcad | 1033 | |
1034 | // | |
1035 | // charged particle is in the sensitive volume | |
1036 | // | |
1037 | ||
1038 | if(gMC->TrackStep() > 0) { | |
1039 | ||
1040 | ||
73042f01 | 1041 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; |
4b0fdcad | 1042 | nel=TMath::Min(nel,300); // 300 electrons corresponds to 10 keV |
1043 | ||
1044 | gMC->TrackPosition(pos); | |
1045 | hits[0]=pos[0]; | |
1046 | hits[1]=pos[1]; | |
1047 | hits[2]=pos[2]; | |
1048 | ||
e61fd20d | 1049 | // Get also the track time for pileup simulation |
1050 | hits[4]=gMC->TrackTime(); | |
1051 | ||
4b0fdcad | 1052 | // |
1053 | // check the selected side of the TPC | |
1054 | // | |
1055 | ||
1056 | if(fSide && fSide*hits[2]<=0.) return; | |
1057 | ||
1058 | hits[3]=(Float_t)nel; | |
1059 | ||
1060 | // Add this hit | |
1061 | ||
5d12ce38 | 1062 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); //MI change |
4b0fdcad | 1063 | |
1064 | } | |
1065 | ||
1066 | // Stemax calculation for the next step | |
1067 | ||
1068 | Float_t pp; | |
1069 | TLorentzVector mom; | |
1070 | gMC->TrackMomentum(mom); | |
1071 | Float_t ptot=mom.Rho(); | |
73042f01 | 1072 | Float_t betaGamma = ptot/gMC->TrackMass(); |
4b0fdcad | 1073 | |
69e40cce | 1074 | Int_t pid=gMC->TrackPid(); |
cc80f89e | 1075 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) |
4b0fdcad | 1076 | { |
73042f01 | 1077 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! |
4b0fdcad | 1078 | } |
1079 | else | |
1080 | { | |
7b562732 | 1081 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); |
73042f01 | 1082 | pp=kprim*BetheBloch(betaGamma); |
4b0fdcad | 1083 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); |
1084 | } | |
1085 | ||
b9d0a01d | 1086 | Double_t rnd = gMC->GetRandom()->Rndm(); |
4b0fdcad | 1087 | |
1088 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); | |
1089 | ||
1090 | } | |
1091 | ||
1092 | //_____________________________________________________________________________ | |
1093 | Float_t AliTPCv3::BetheBloch(Float_t bg) | |
1094 | { | |
1095 | // | |
1096 | // Bethe-Bloch energy loss formula | |
1097 | // | |
73042f01 | 1098 | const Double_t kp1=0.76176e-1; |
1099 | const Double_t kp2=10.632; | |
1100 | const Double_t kp3=0.13279e-4; | |
1101 | const Double_t kp4=1.8631; | |
1102 | const Double_t kp5=1.9479; | |
4b0fdcad | 1103 | |
1104 | Double_t dbg = (Double_t) bg; | |
1105 | ||
1106 | Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg); | |
1107 | ||
73042f01 | 1108 | Double_t aa = TMath::Power(beta,kp4); |
1109 | Double_t bb = TMath::Power(1./dbg,kp5); | |
4b0fdcad | 1110 | |
73042f01 | 1111 | bb=TMath::Log(kp3+bb); |
4b0fdcad | 1112 | |
73042f01 | 1113 | return ((Float_t)((kp2-aa-bb)*kp1/aa)); |
4b0fdcad | 1114 | } |