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457e2170 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* | |
17 | $Log$ | |
e6add757 | 18 | Revision 1.1 2007/06/24 20:56:19 hristov |
19 | TPC version for the krypton runs (Marek) | |
20 | ||
457e2170 | 21 | */ |
22 | ||
23 | // | |
24 | /////////////////////////////////////////////////////////////////////////////// | |
25 | // // | |
26 | // Time Projection Chamber version 4 -- detailed TPC and slow simulation // | |
27 | // of Krypton decays // | |
28 | // // | |
29 | //Begin_Html // | |
30 | /* | |
31 | <img src="picts/AliTPCv2Class.gif"> | |
32 | */ | |
33 | //End_Html | |
34 | // // | |
35 | // // | |
36 | /////////////////////////////////////////////////////////////////////////////// | |
37 | ||
38 | //#include <stdlib.h> | |
39 | ||
40 | #include <TLorentzVector.h> | |
41 | #include <TPDGCode.h> | |
42 | #include <TString.h> | |
43 | #include "AliLog.h" | |
b40afa5e | 44 | #include "AliMathBase.h" |
457e2170 | 45 | #include "AliTPCParam.h" |
46 | #include "AliTPCTrackHitsV2.h" | |
47 | #include "AliTPCv4.h" | |
48 | #include "TGeoVolume.h" | |
49 | #include "TGeoPcon.h" | |
50 | #include "TGeoTube.h" | |
51 | #include "TGeoPgon.h" | |
c5d5037c | 52 | #include "TGeoCone.h" |
457e2170 | 53 | #include "TGeoTrd1.h" |
54 | #include "TGeoCompositeShape.h" | |
55 | #include "TGeoPara.h" | |
56 | #include "TGeoPhysicalNode.h" | |
6c0ba48f | 57 | #include "TGeoHalfSpace.h" |
58 | #include "TTreeStream.h" | |
59 | #include "TGeoArb8.h" | |
457e2170 | 60 | |
a11596ad | 61 | using std::ifstream; |
62 | using std::ios_base; | |
457e2170 | 63 | ClassImp(AliTPCv4) |
64 | ||
65 | //_____________________________________________________________________________ | |
66 | AliTPCv4::AliTPCv4(const char *name, const char *title) : | |
67 | AliTPC(name, title), | |
68 | fIdSens(0), | |
69 | fIDrift(0), | |
70 | fSecOld(0) | |
71 | { | |
72 | // | |
73 | // Standard constructor for Time Projection Chamber version 2 | |
74 | // | |
75 | ||
76 | ||
77 | SetBufferSize(128000); | |
78 | ||
79 | ||
80 | if (fTPCParam) | |
81 | fTPCParam->Write(fTPCParam->GetTitle()); | |
82 | } | |
83 | ||
84 | //_____________________________________________________________________________ | |
85 | void AliTPCv4::CreateGeometry() | |
86 | { | |
87 | // | |
88 | // Create the geometry of Time Projection Chamber version 2 | |
89 | // | |
90 | //Begin_Html | |
91 | /* | |
92 | <img src="picts/AliTPC.gif"> | |
93 | */ | |
94 | //End_Html | |
95 | //Begin_Html | |
96 | /* | |
97 | <img src="picts/AliTPCv2Tree.gif"> | |
98 | */ | |
99 | //End_Html | |
100 | ||
101 | //---------------------------------------------------------- | |
102 | // This geometry is written using TGeo class | |
103 | // Firstly the shapes are defined, and only then the volumes | |
104 | // What is recognized by the MC are volumes | |
105 | //---------------------------------------------------------- | |
106 | // | |
107 | // tpc - this will be the mother volume | |
108 | // | |
109 | ||
110 | // | |
111 | // here I define a volume TPC | |
112 | // retrive the medium name with "TPC_" as a leading string | |
113 | // | |
8ad31ee5 | 114 | TGeoPcon *tpc = new TGeoPcon(0.,360.,30); //30 sections |
457e2170 | 115 | // |
8ad31ee5 | 116 | tpc->DefineSection(0,-289.6,77.,278.); |
117 | tpc->DefineSection(1,-262.1,77.,278.); | |
457e2170 | 118 | // |
8ad31ee5 | 119 | tpc->DefineSection(2,-262.1,83.1,278.); |
120 | tpc->DefineSection(3,-260.,83.1,278.); | |
457e2170 | 121 | // |
8ad31ee5 | 122 | tpc->DefineSection(4,-260.,70.,278.); |
123 | tpc->DefineSection(5,-259.6,70.,278.); | |
457e2170 | 124 | // |
8ad31ee5 | 125 | tpc->DefineSection(6,-259.6,68.1,278.); |
126 | tpc->DefineSection(7,-253.6,68.1,278.); | |
457e2170 | 127 | // |
c5d5037c | 128 | tpc->DefineSection(8,-253.6,67.88,278.);//hs |
129 | tpc->DefineSection(9,-74.0,60.68,278.);// hs | |
457e2170 | 130 | // |
8ad31ee5 | 131 | tpc->DefineSection(10,-74.0,60.1,278.); |
132 | tpc->DefineSection(11,-73.3,60.1,278.); | |
457e2170 | 133 | // |
8ad31ee5 | 134 | tpc->DefineSection(12,-73.3,56.9,278.); |
135 | tpc->DefineSection(13,-68.5,56.9,278.); | |
457e2170 | 136 | // |
8ad31ee5 | 137 | tpc->DefineSection(14,-68.5,60.,278.); |
138 | tpc->DefineSection(15,-64.7,60.,278.); | |
78134e48 | 139 | // |
8ad31ee5 | 140 | tpc->DefineSection(16,-64.7,56.9,278.); |
141 | tpc->DefineSection(17,73.3,56.9,278.); | |
78134e48 | 142 | // |
8ad31ee5 | 143 | tpc->DefineSection(18,73.3,60.1,278.); |
144 | tpc->DefineSection(19,74.0,60.1,278.); | |
4fb9bd37 | 145 | // |
c5d5037c | 146 | tpc->DefineSection(20,74.0,60.68,278.);// hs |
147 | tpc->DefineSection(21,253.6,65.38,278.);// hs | |
4fb9bd37 | 148 | // |
8ad31ee5 | 149 | tpc->DefineSection(22,253.6,65.6,278.); |
150 | tpc->DefineSection(23,259.6,65.6,278.); | |
4fb9bd37 | 151 | // |
8ad31ee5 | 152 | tpc->DefineSection(24,259.6,70.0,278.); |
153 | tpc->DefineSection(25,260.,70.0,278.); | |
154 | // | |
155 | tpc->DefineSection(26,260.,83.1,278.); | |
156 | tpc->DefineSection(27,262.1,83.1,278.); | |
157 | // | |
158 | tpc->DefineSection(28,262.1,77.,278); | |
159 | tpc->DefineSection(29,289.6,77.,278.); | |
160 | ||
457e2170 | 161 | // |
162 | TGeoMedium *m1 = gGeoManager->GetMedium("TPC_Air"); | |
163 | TGeoVolume *v1 = new TGeoVolume("TPC_M",tpc,m1); | |
164 | // | |
165 | // drift volume - sensitive volume, extended beyond the | |
166 | // endcaps, because of the alignment | |
167 | // | |
168 | TGeoPcon *dvol = new TGeoPcon(0.,360.,6); | |
169 | dvol->DefineSection(0,-260.,74.5,264.4); | |
170 | dvol->DefineSection(1,-253.6,74.5,264.4); | |
171 | // | |
172 | dvol->DefineSection(2,-253.6,76.6774,258.); | |
173 | dvol->DefineSection(3,253.6,76.6774,258.); | |
174 | // | |
175 | dvol->DefineSection(4,253.6,74.5,264.4); | |
176 | dvol->DefineSection(5,260.,74.5,264.4); | |
177 | // | |
a964d561 | 178 | TGeoMedium *m5 = gGeoManager->GetMedium("TPC_DriftGas3"); |
457e2170 | 179 | TGeoVolume *v9 = new TGeoVolume("TPC_Drift",dvol,m5); |
180 | // | |
181 | v1->AddNode(v9,1); | |
182 | // | |
183 | // outer insulator | |
184 | // | |
185 | TGeoPcon *tpco = new TGeoPcon(0.,360.,6); //insulator | |
186 | // | |
187 | tpco->DefineSection(0,-256.6,264.8,278.); | |
188 | tpco->DefineSection(1,-253.6,264.8,278.); | |
189 | // | |
190 | tpco->DefineSection(2,-253.6,258.,278.); | |
191 | tpco->DefineSection(3,250.6,258.,278.); | |
192 | // | |
193 | tpco->DefineSection(4,250.6,258.,275.5); | |
194 | tpco->DefineSection(5,253.6,258.,275.5); | |
195 | // | |
196 | TGeoMedium *m2 = gGeoManager->GetMedium("TPC_CO2"); | |
197 | TGeoVolume *v2 = new TGeoVolume("TPC_OI",tpco,m2); | |
198 | // | |
199 | // outer containment vessel | |
200 | // | |
201 | TGeoPcon *tocv = new TGeoPcon(0.,360.,6); // containment vessel | |
202 | // | |
203 | tocv->DefineSection(0,-256.6,264.8,278.); | |
204 | tocv->DefineSection(1,-253.6,264.8,278.); | |
205 | // | |
206 | tocv->DefineSection(2,-253.6,274.8124,278.); | |
207 | tocv->DefineSection(3,247.6,274.8124,278.); | |
208 | // | |
209 | tocv->DefineSection(4,247.6,270.4,278.); | |
210 | tocv->DefineSection(5,250.6,270.4,278.); | |
211 | // | |
212 | TGeoMedium *m3 = gGeoManager->GetMedium("TPC_Al"); | |
213 | TGeoVolume *v3 = new TGeoVolume("TPC_OCV",tocv,m3); | |
214 | // | |
215 | TGeoTube *to1 = new TGeoTube(274.8174,277.995,252.1); //epoxy | |
216 | TGeoTube *to2 = new TGeoTube(274.8274,277.985,252.1); //tedlar | |
217 | TGeoTube *to3 = new TGeoTube(274.8312,277.9812,252.1);//prepreg2 | |
218 | TGeoTube *to4 = new TGeoTube(274.9062,277.9062,252.1);//nomex | |
219 | // | |
220 | TGeoMedium *sm1 = gGeoManager->GetMedium("TPC_Epoxy"); | |
221 | TGeoMedium *sm2 = gGeoManager->GetMedium("TPC_Tedlar"); | |
222 | TGeoMedium *sm3 = gGeoManager->GetMedium("TPC_Prepreg2"); | |
223 | TGeoMedium *sm4 = gGeoManager->GetMedium("TPC_Nomex"); | |
224 | // | |
225 | TGeoVolume *tov1 = new TGeoVolume("TPC_OCV1",to1,sm1); | |
226 | TGeoVolume *tov2 = new TGeoVolume("TPC_OCV2",to2,sm2); | |
227 | TGeoVolume *tov3 = new TGeoVolume("TPC_OCV3",to3,sm3); | |
228 | TGeoVolume *tov4 = new TGeoVolume("TPC_OCV4",to4,sm4); | |
c5d5037c | 229 | TGeoMedium *mhs = gGeoManager->GetMedium("TPC_Steel"); |
230 | TGeoMedium *m12 = gGeoManager->GetMedium("TPC_Water"); | |
457e2170 | 231 | //------------------------------------------------------- |
232 | // Tpc Outer Field Cage | |
233 | // daughters - composite (sandwich) | |
234 | //------------------------------------------------------- | |
235 | ||
236 | TGeoPcon *tofc = new TGeoPcon(0.,360.,6); | |
237 | // | |
238 | tofc->DefineSection(0,-253.6,258.,269.6); | |
239 | tofc->DefineSection(1,-250.6,258.,269.6); | |
240 | // | |
241 | tofc->DefineSection(2,-250.6,258.,260.0676); | |
242 | tofc->DefineSection(3,250.6,258.,260.0676); | |
243 | // | |
244 | tofc->DefineSection(4,250.6,258.,275.5); | |
245 | tofc->DefineSection(5,253.6,258.,275.5); | |
246 | // | |
247 | TGeoVolume *v4 = new TGeoVolume("TPC_TOFC",tofc,m3); | |
248 | //sandwich | |
249 | TGeoTube *tf1 = new TGeoTube(258.0,260.0676,252.1); //tedlar | |
250 | TGeoTube *tf2 = new TGeoTube(258.0038,260.0638,252.1); //prepreg3 | |
251 | TGeoTube *tf3 = new TGeoTube(258.0338,260.0338,252.1);//nomex | |
252 | // | |
253 | TGeoMedium *sm5 = gGeoManager->GetMedium("TPC_Prepreg3"); | |
254 | // | |
255 | TGeoVolume *tf1v = new TGeoVolume("TPC_OFC1",tf1,sm2); | |
256 | TGeoVolume *tf2v = new TGeoVolume("TPC_OFC2",tf2,sm5); | |
257 | TGeoVolume *tf3v = new TGeoVolume("TPC_OFC3",tf3,sm4); | |
258 | // | |
259 | // outer part - positioning | |
260 | // | |
261 | tov1->AddNode(tov2,1); tov2->AddNode(tov3,1); tov3->AddNode(tov4,1); | |
262 | // | |
263 | tf1v->AddNode(tf2v,1); tf2v->AddNode(tf3v,1); | |
264 | // | |
265 | v3->AddNode(tov1,1,new TGeoTranslation(0.,0.,-1.5)); v4->AddNode(tf1v,1); | |
266 | // | |
267 | v2->AddNode(v3,1); v2->AddNode(v4,1); | |
268 | // | |
269 | v1->AddNode(v2,1); | |
270 | //-------------------------------------------------------------------- | |
271 | // Tpc Inner INsulator (CO2) | |
272 | // the cones, the central drum and the inner f.c. sandwich with a piece | |
273 | // of the flane will be placed in the TPC | |
274 | //-------------------------------------------------------------------- | |
275 | TGeoPcon *tpci = new TGeoPcon(0.,360.,4); | |
276 | // | |
277 | tpci->DefineSection(0,-253.6,68.4,76.6774); | |
278 | tpci->DefineSection(1,-74.0,61.2,76.6774); | |
279 | // | |
280 | tpci->DefineSection(2,74.0,61.2,76.6774); | |
281 | // | |
282 | tpci->DefineSection(3,253.6,65.9,76.6774); | |
283 | // | |
284 | TGeoVolume *v5 = new TGeoVolume("TPC_INI",tpci,m2); | |
285 | // | |
286 | // now the inner field cage - only part of flanges (2 copies) | |
287 | // | |
288 | TGeoTube *tif1 = new TGeoTube(69.9,76.6774,1.5); | |
289 | TGeoVolume *v6 = new TGeoVolume("TPC_IFC1",tif1,m3); | |
290 | // | |
291 | //--------------------------------------------------------- | |
292 | // Tpc Inner Containment vessel - Muon side | |
293 | //--------------------------------------------------------- | |
294 | TGeoPcon *tcms = new TGeoPcon(0.,360.,10); | |
295 | // | |
296 | tcms->DefineSection(0,-259.1,68.1,74.2); | |
297 | tcms->DefineSection(1,-253.6,68.1,74.2); | |
298 | // | |
299 | tcms->DefineSection(2,-253.6,68.1,68.4); | |
300 | tcms->DefineSection(3,-74.0,60.9,61.2); | |
301 | // | |
302 | tcms->DefineSection(4,-74.0,60.1,61.2); | |
303 | tcms->DefineSection(5,-73.3,60.1,61.2); | |
304 | // | |
305 | tcms->DefineSection(6,-73.3,56.9,61.2); | |
306 | tcms->DefineSection(7,-73.0,56.9,61.2); | |
307 | // | |
308 | tcms->DefineSection(8,-73.0,56.9,58.8); | |
309 | tcms->DefineSection(9,-71.3,56.9,58.8); | |
310 | // | |
311 | TGeoVolume *v7 = new TGeoVolume("TPC_ICVM",tcms,m3); | |
c5d5037c | 312 | //------------------------------------------------ |
313 | // Heat screen muon side | |
314 | //------------------------------------------------ | |
315 | ||
316 | TGeoCone *thsm = new TGeoCone(89.8,67.88,68.1,60.68,60.9); | |
317 | TGeoCone *thsmw = new TGeoCone(89.8,67.94,68.04,60.74,60.84); | |
318 | TGeoVolume *hvsm = new TGeoVolume("TPC_HSM",thsm,mhs); //steel | |
319 | TGeoVolume *hvsmw = new TGeoVolume("TPC_HSMW",thsmw,m12); //water | |
320 | // assembly heat screen muon | |
321 | hvsm->AddNode(hvsmw,1); | |
457e2170 | 322 | //----------------------------------------------- |
323 | // inner containment vessel - shaft side | |
324 | //----------------------------------------------- | |
325 | TGeoPcon *tcss = new TGeoPcon(0.,360.,10); | |
326 | // | |
327 | tcss->DefineSection(0,71.3,56.9,58.8); | |
328 | tcss->DefineSection(1,73.0,56.9,58.8); | |
329 | // | |
330 | tcss->DefineSection(2,73.0,56.9,61.2); | |
331 | tcss->DefineSection(3,73.3,56.9,61.2); | |
332 | // | |
333 | tcss->DefineSection(4,73.3,60.1,61.2); | |
334 | tcss->DefineSection(5,74.0,60.1,61.2); | |
335 | // | |
336 | tcss->DefineSection(6,74.0,60.9,61.2); | |
337 | tcss->DefineSection(7,253.6,65.6,65.9); | |
338 | // | |
339 | tcss->DefineSection(8,253.6,65.6,74.2); | |
340 | tcss->DefineSection(9,258.1,65.6,74.2); | |
341 | // | |
342 | TGeoVolume *v8 = new TGeoVolume("TPC_ICVS",tcss,m3); | |
c5d5037c | 343 | //------------------------------------------------- |
344 | // Heat screen shaft side | |
345 | //-------------------------------------------------- | |
346 | TGeoCone *thss = new TGeoCone(89.8,60.68,60.9,65.38,65.6); | |
347 | TGeoCone *thssw = new TGeoCone(89.8,60.74,60.84,65.44,65.54); | |
348 | TGeoVolume *hvss = new TGeoVolume("TPC_HSS",thss,mhs); //steel | |
349 | TGeoVolume *hvssw = new TGeoVolume("TPC_HSSW",thssw,m12); //water | |
350 | //assembly heat screen shaft | |
351 | hvss->AddNode(hvssw,1); | |
457e2170 | 352 | //----------------------------------------------- |
353 | // Inner field cage | |
354 | // define 4 parts and make an assembly | |
355 | //----------------------------------------------- | |
356 | // part1 - Al - 2 copies | |
357 | TGeoTube *t1 = new TGeoTube(76.6774,78.845,0.75); | |
358 | TGeoVolume *tv1 = new TGeoVolume("TPC_IFC2",t1,m3); | |
359 | // sandwich - outermost parts - 2 copies | |
360 | TGeoTube *t2 = new TGeoTube(76.6774,78.845,74.175); // tedlar 38 microns | |
361 | TGeoTube *t3 = new TGeoTube(76.6812,78.8412,74.175); // prepreg2 500 microns | |
362 | TGeoTube *t4 = new TGeoTube(76.7312,78.7912,74.175); // prepreg3 300 microns | |
363 | TGeoTube *t5 = new TGeoTube(76.7612,78.7612,74.175); // nomex 2 cm | |
364 | // | |
365 | TGeoVolume *tv2 = new TGeoVolume("TPC_IFC3",t2,sm2); | |
366 | TGeoVolume *tv3 = new TGeoVolume("TPC_IFC4",t3,sm3); | |
367 | TGeoVolume *tv4 = new TGeoVolume("TPC_IFC5",t4,sm5); | |
368 | TGeoVolume *tv5 = new TGeoVolume("TPC_IFC6",t5,sm4); | |
369 | // | |
370 | // middle parts - 2 copies | |
371 | TGeoTube *t6 = new TGeoTube(76.6774,78.795,5.); // tedlar 38 microns | |
372 | TGeoTube *t7 = new TGeoTube(76.6812,78.7912,5.); // prepreg2 250 microns | |
373 | TGeoTube *t8 = new TGeoTube(76.7062,78.7662,5.); // prepreg3 300 microns | |
374 | TGeoTube *t9 = new TGeoTube(76.7362,78.7362,5.); // nomex 2 cm | |
375 | // | |
376 | TGeoVolume *tv6 = new TGeoVolume("TPC_IFC7",t6,sm2); | |
377 | TGeoVolume *tv7 = new TGeoVolume("TPC_IFC8",t7,sm3); | |
378 | TGeoVolume *tv8 = new TGeoVolume("TPC_IFC9",t8,sm5); | |
379 | TGeoVolume *tv9 = new TGeoVolume("TPC_IFC10",t9,sm4); | |
380 | // central part - 1 copy | |
381 | TGeoTube *t10 = new TGeoTube(76.6774,78.745,93.75); // tedlar 38 microns | |
382 | TGeoTube *t11 = new TGeoTube(76.6812,78.7412,93.75); // prepreg3 300 microns | |
383 | TGeoTube *t12 = new TGeoTube(76.7112,78.7112,93.75); // nomex 2 cm | |
384 | // | |
385 | TGeoVolume *tv10 = new TGeoVolume("TPC_IFC11",t10,sm2); | |
386 | TGeoVolume *tv11 = new TGeoVolume("TPC_IFC12",t11,sm5); | |
387 | TGeoVolume *tv12 = new TGeoVolume("TPC_IFC13",t12,sm4); | |
388 | // | |
389 | // inner part - positioning | |
390 | // | |
391 | // creating a sandwich | |
392 | tv2->AddNode(tv3,1); tv3->AddNode(tv4,1); tv4->AddNode(tv5,1); | |
393 | // | |
394 | tv6->AddNode(tv7,1); tv7->AddNode(tv8,1); tv8->AddNode(tv9,1); | |
395 | // | |
396 | tv10->AddNode(tv11,1); tv11->AddNode(tv12,1); | |
397 | // | |
398 | TGeoVolumeAssembly *tv100 = new TGeoVolumeAssembly("TPC_IFC"); | |
399 | // | |
400 | tv100->AddNode(tv10,1); | |
401 | tv100->AddNode(tv6,1,new TGeoTranslation(0.,0.,-98.75)); | |
402 | tv100->AddNode(tv6,2,new TGeoTranslation(0.,0.,98.75)); | |
403 | tv100->AddNode(tv2,1,new TGeoTranslation(0.,0.,-177.925)); | |
404 | tv100->AddNode(tv2,2,new TGeoTranslation(0.,0.,177.925)); | |
405 | tv100->AddNode(tv1,1,new TGeoTranslation(0.,0.,-252.85)); | |
406 | tv100->AddNode(tv1,2,new TGeoTranslation(0.,0.,252.85)); | |
407 | // | |
408 | v5->AddNode(v6,1, new TGeoTranslation(0.,0.,-252.1)); | |
409 | v5->AddNode(v6,2, new TGeoTranslation(0.,0.,252.1)); | |
410 | v1->AddNode(v5,1); v1->AddNode(v7,1); v1->AddNode(v8,1); | |
c5d5037c | 411 | v1->AddNode(hvsm,1,new TGeoTranslation(0.,0.,-163.8)); |
412 | v1->AddNode(hvss,1,new TGeoTranslation(0.,0.,163.8)); | |
457e2170 | 413 | v9->AddNode(tv100,1); |
414 | // | |
415 | // central drum | |
416 | // | |
417 | // flange + sandwich | |
418 | // | |
419 | TGeoPcon *cfl = new TGeoPcon(0.,360.,6); | |
420 | cfl->DefineSection(0,-71.1,59.7,61.2); | |
421 | cfl->DefineSection(1,-68.6,59.7,61.2); | |
422 | // | |
423 | cfl->DefineSection(2,-68.6,60.6324,61.2); | |
424 | cfl->DefineSection(3,68.6,60.6324,61.2); | |
425 | // | |
426 | cfl->DefineSection(4,68.6,59.7,61.2); | |
427 | cfl->DefineSection(5,71.1,59.7,61.2); | |
428 | // | |
429 | TGeoVolume *cflv = new TGeoVolume("TPC_CDR",cfl,m3); | |
430 | // sandwich | |
431 | TGeoTube *cd1 = new TGeoTube(60.6424,61.19,71.1); | |
432 | TGeoTube *cd2 = new TGeoTube(60.6462,61.1862,71.1); | |
433 | TGeoTube *cd3 = new TGeoTube(60.6662,61.1662,71.1); | |
434 | // | |
435 | TGeoMedium *sm6 = gGeoManager->GetMedium("TPC_Prepreg1"); | |
436 | TGeoVolume *cd1v = new TGeoVolume("TPC_CDR1",cd1,sm2); //tedlar | |
437 | TGeoVolume *cd2v = new TGeoVolume("TPC_CDR2",cd2,sm6);// prepreg1 | |
438 | TGeoVolume *cd3v = new TGeoVolume("TPC_CDR3",cd3,sm4); //nomex | |
439 | // | |
440 | // seals for central drum 2 copies | |
441 | // | |
442 | TGeoTube *cs = new TGeoTube(56.9,61.2,0.1); | |
443 | TGeoMedium *sm7 = gGeoManager->GetMedium("TPC_Mylar"); | |
444 | TGeoVolume *csv = new TGeoVolume("TPC_CDRS",cs,sm7); | |
78134e48 | 445 | v1->AddNode(csv,1,new TGeoTranslation(0.,0.,-71.2)); |
446 | v1->AddNode(csv,2,new TGeoTranslation(0.,0.,71.2)); | |
457e2170 | 447 | // |
448 | // seal collars | |
449 | TGeoPcon *se = new TGeoPcon(0.,360.,6); | |
450 | se->DefineSection(0,-72.8,59.7,61.2); | |
451 | se->DefineSection(1,-72.3,59.7,61.2); | |
452 | // | |
453 | se->DefineSection(2,-72.3,58.85,61.2); | |
454 | se->DefineSection(3,-71.6,58.85,61.2); | |
455 | // | |
456 | se->DefineSection(4,-71.6,59.7,61.2); | |
457 | se->DefineSection(5,-71.3,59.7,61.2); | |
458 | // | |
459 | TGeoVolume *sev = new TGeoVolume("TPC_CDCE",se,m3); | |
460 | // | |
461 | TGeoTube *si = new TGeoTube(56.9,58.8,1.); | |
462 | TGeoVolume *siv = new TGeoVolume("TPC_CDCI",si,m3); | |
463 | // | |
464 | // define reflection matrix | |
465 | // | |
466 | TGeoRotation *ref = new TGeoRotation("ref",90.,0.,90.,90.,180.,0.); | |
467 | // | |
468 | cd1v->AddNode(cd2v,1); cd2v->AddNode(cd3v,1); cflv->AddNode(cd1v,1); | |
469 | // | |
470 | v1->AddNode(siv,1,new TGeoTranslation(0.,0.,-69.9)); | |
471 | v1->AddNode(siv,2,new TGeoTranslation(0.,0.,69.9)); | |
472 | v1->AddNode(sev,1); v1->AddNode(sev,2,ref); v1->AddNode(cflv,1); | |
473 | // | |
474 | // central membrane - 2 rings and a mylar membrane - assembly | |
475 | // | |
476 | TGeoTube *ih = new TGeoTube(81.05,84.05,0.3); | |
477 | TGeoTube *oh = new TGeoTube(250.,256.,.5); | |
478 | TGeoTube *mem = new TGeoTube(84.05,250,0.01); | |
479 | TGeoVolume *ihv = new TGeoVolume("TPC_IHVH",ih,m3); | |
480 | TGeoVolume *ohv = new TGeoVolume("TPC_OHVH",oh,m3); | |
481 | TGeoVolume *memv = new TGeoVolume("TPC_HV",mem,sm7); | |
482 | // | |
483 | TGeoVolumeAssembly *cm = new TGeoVolumeAssembly("TPC_HVMEM"); | |
484 | cm->AddNode(ihv,1); | |
485 | cm->AddNode(ohv,1); | |
486 | cm->AddNode(memv,1); | |
487 | v9->AddNode(cm,1); | |
488 | // | |
489 | // end caps - they are make as an assembly of single segments | |
490 | // containing both readout chambers | |
491 | // | |
492 | Double_t openingAngle = 10.*TMath::DegToRad(); | |
493 | Double_t thick=1.5; // rib | |
494 | Double_t shift = thick/TMath::Sin(openingAngle); | |
495 | // | |
496 | Double_t lowEdge = 86.3; // hole in the wheel | |
497 | Double_t upEdge = 240.4; // hole in the wheel | |
498 | // | |
499 | new TGeoTubeSeg("sec",74.5,264.4,3.,0.,20.); | |
500 | // | |
501 | TGeoPgon *hole = new TGeoPgon("hole",0.,20.,1,4); | |
502 | // | |
503 | hole->DefineSection(0,-3.5,lowEdge-shift,upEdge-shift); | |
504 | hole->DefineSection(1,-1.5,lowEdge-shift,upEdge-shift); | |
505 | // | |
506 | hole->DefineSection(2,-1.5,lowEdge-shift,upEdge+3.-shift); | |
507 | hole->DefineSection(3,3.5,lowEdge-shift,upEdge+3.-shift); | |
508 | // | |
509 | Double_t ys = shift*TMath::Sin(openingAngle); | |
510 | Double_t xs = shift*TMath::Cos(openingAngle); | |
511 | TGeoTranslation *tr = new TGeoTranslation("tr",xs,ys,0.); | |
512 | tr->RegisterYourself(); | |
513 | TGeoCompositeShape *chamber = new TGeoCompositeShape("sec-hole:tr"); | |
514 | TGeoVolume *sv = new TGeoVolume("TPC_WSEG",chamber,m3); | |
515 | TGeoPgon *bar = new TGeoPgon("bar",0.,20.,1,2); | |
516 | bar->DefineSection(0,-3.,131.5-shift,136.5-shift); | |
517 | bar->DefineSection(1,1.5,131.5-shift,136.5-shift); | |
518 | TGeoVolume *barv = new TGeoVolume("TPC_WBAR",bar,m3); | |
519 | TGeoVolumeAssembly *ch = new TGeoVolumeAssembly("TPC_WCH");//empty segment | |
520 | // | |
521 | ch->AddNode(sv,1); ch->AddNode(barv,1,tr); | |
522 | // | |
523 | // readout chambers | |
524 | // | |
525 | // IROC first | |
526 | // | |
527 | TGeoTrd1 *ibody = new TGeoTrd1(13.8742,21.3328,4.29,21.15); | |
528 | TGeoVolume *ibdv = new TGeoVolume("TPC_IROCB",ibody,m3); | |
529 | // empty space | |
530 | TGeoTrd1 *emp = new TGeoTrd1(12.3742,19.8328,3.99,19.65); | |
531 | TGeoVolume *empv = new TGeoVolume("TPC_IROCE",emp,m1); | |
532 | ibdv->AddNode(empv,1,new TGeoTranslation(0.,-0.3,0.)); | |
533 | //bars | |
534 | Double_t tga = (19.8328-12.3742)/39.3; | |
535 | Double_t xmin,xmax; | |
536 | xmin = 9.55*tga+12.3742; | |
537 | xmax = 9.95*tga+12.3742; | |
538 | TGeoTrd1 *ib1 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
539 | TGeoVolume *ib1v = new TGeoVolume("TPC_IRB1",ib1,m3); | |
540 | empv->AddNode(ib1v,1,new TGeoTranslation("tt1",0.,0.7,-9.9)); | |
541 | xmin=19.4*tga+12.3742; | |
542 | xmax=19.9*tga+12.3742; | |
543 | TGeoTrd1 *ib2 = new TGeoTrd1(xmin,xmax,3.29,0.25); | |
544 | TGeoVolume *ib2v = new TGeoVolume("TPC_TRB2",ib2,m3); | |
545 | empv->AddNode(ib2v,1,new TGeoTranslation(0.,0.7,0.)); | |
546 | xmin=29.35*tga+12.3742; | |
547 | xmax=29.75*tga+12.3742; | |
548 | TGeoTrd1 *ib3 = new TGeoTrd1(xmin,xmax,3.29,0.2); | |
549 | TGeoVolume *ib3v = new TGeoVolume("TPC_IRB3",ib3,m3); | |
550 | empv->AddNode(ib3v,1,new TGeoTranslation(0.,0.7,9.9)); | |
551 | // | |
552 | // holes for connectors | |
553 | // | |
554 | TGeoBBox *conn = new TGeoBBox(0.4,0.3,4.675); // identical for iroc and oroc | |
555 | TGeoVolume *connv = new TGeoVolume("TPC_RCCON",conn,m1); | |
556 | TString fileName(gSystem->Getenv("ALICE_ROOT")); | |
557 | fileName += "/TPC/conn_iroc.dat"; | |
558 | ifstream in; | |
559 | in.open(fileName.Data(), ios_base::in); // asci file | |
560 | for(Int_t i =0;i<86;i++){ | |
561 | Double_t y = 3.99; | |
562 | Double_t x,z,ang; | |
563 | in>>x>>z>>ang; | |
564 | z-=26.5; | |
565 | TGeoRotation *rrr = new TGeoRotation(); | |
566 | rrr->RotateY(ang); | |
567 | TGeoCombiTrans *trans = new TGeoCombiTrans("trans",x,y,z,rrr); | |
568 | ibdv->AddNode(connv,i+1,trans); | |
569 | } | |
570 | in.close(); | |
571 | // "cap" | |
572 | new TGeoTrd1("icap",14.5974,23.3521,1.19,24.825); | |
573 | // "hole" | |
574 | new TGeoTrd1("ihole",13.8742,21.3328,1.2,21.15); | |
575 | TGeoTranslation *tr1 = new TGeoTranslation("tr1",0.,0.,1.725); | |
576 | tr1->RegisterYourself(); | |
577 | TGeoCompositeShape *ic = new TGeoCompositeShape("icap-ihole:tr1"); | |
578 | TGeoVolume *icv = new TGeoVolume("TPC_IRCAP",ic,m3); | |
579 | // | |
580 | // pad plane and wire fixations | |
581 | // | |
582 | TGeoTrd1 *pp = new TGeoTrd1(14.5974,23.3521,0.3,24.825); //pad+iso | |
583 | TGeoMedium *m4 = gGeoManager->GetMedium("TPC_G10"); | |
584 | TGeoVolume *ppv = new TGeoVolume("TPC_IRPP",pp,m4); | |
585 | TGeoPara *f1 = new TGeoPara(.6,.5,24.825,0.,-10.,0.); | |
586 | TGeoVolume *f1v = new TGeoVolume("TPC_IRF1",f1,m4); | |
587 | TGeoPara *f2 = new TGeoPara(.6,.5,24.825,0.,10.,0.); | |
588 | TGeoVolume *f2v = new TGeoVolume("TPC_IRF2",f2,m4); | |
589 | // | |
590 | TGeoVolumeAssembly *iroc = new TGeoVolumeAssembly("TPC_IROC"); | |
591 | // | |
592 | iroc->AddNode(ibdv,1); | |
593 | iroc->AddNode(icv,1,new TGeoTranslation(0.,3.1,-1.725)); | |
594 | iroc->AddNode(ppv,1,new TGeoTranslation(0.,4.59,-1.725)); | |
595 | tga =(23.3521-14.5974)/49.65; | |
596 | Double_t xx = 24.825*tga+14.5974-0.6; | |
597 | iroc->AddNode(f1v,1,new TGeoTranslation(-xx,5.39,-1.725)); | |
598 | iroc->AddNode(f2v,1,new TGeoTranslation(xx,5.39,-1.725)); | |
599 | // | |
600 | // OROC | |
601 | // | |
602 | TGeoTrd1 *obody = new TGeoTrd1(22.2938,40.5084,4.19,51.65); | |
603 | TGeoVolume *obdv = new TGeoVolume("TPC_OROCB",obody,m3); | |
604 | TGeoTrd1 *oemp = new TGeoTrd1(20.2938,38.5084,3.89,49.65); | |
605 | TGeoVolume *oempv = new TGeoVolume("TPC_OROCE",oemp,m1); | |
606 | obdv->AddNode(oempv,1,new TGeoTranslation(0.,-0.3,0.)); | |
607 | //horizontal bars | |
608 | tga=(38.5084-20.2938)/99.3; | |
609 | xmin=tga*10.2+20.2938; | |
610 | xmax=tga*10.6+20.2938; | |
611 | TGeoTrd1 *ob1 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
612 | TGeoVolume *ob1v = new TGeoVolume("TPC_ORB1",ob1,m3); | |
613 | // | |
614 | xmin=22.55*tga+20.2938; | |
615 | xmax=24.15*tga+20.2938; | |
616 | TGeoTrd1 *ob2 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
617 | TGeoVolume *ob2v = new TGeoVolume("TPC_ORB2",ob2,m3); | |
618 | // | |
619 | xmin=36.1*tga+20.2938; | |
620 | xmax=36.5*tga+20.2938; | |
621 | TGeoTrd1 *ob3 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
622 | TGeoVolume *ob3v = new TGeoVolume("TPC_ORB3",ob3,m3); | |
623 | // | |
624 | xmin=49.0*tga+20.2938; | |
625 | xmax=50.6*tga+20.2938; | |
626 | TGeoTrd1 *ob4 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
627 | TGeoVolume *ob4v = new TGeoVolume("TPC_ORB4",ob4,m3); | |
628 | // | |
629 | xmin=63.6*tga+20.2938; | |
630 | xmax=64.0*tga+20.2938; | |
631 | TGeoTrd1 *ob5 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
632 | TGeoVolume *ob5v = new TGeoVolume("TPC_ORB5",ob5,m3); | |
633 | // | |
634 | xmin=75.5*tga+20.2938; | |
635 | xmax=77.15*tga+20.2938; | |
636 | TGeoTrd1 *ob6 = new TGeoTrd1(xmin,xmax,2.915,0.8); | |
637 | TGeoVolume *ob6v = new TGeoVolume("TPC_ORB6",ob6,m3); | |
638 | // | |
639 | xmin=88.7*tga+20.2938; | |
640 | xmax=89.1*tga+20.2938; | |
641 | TGeoTrd1 *ob7 = new TGeoTrd1(xmin,xmax,2.915,0.2); | |
642 | TGeoVolume *ob7v = new TGeoVolume("TPC_ORB7",ob7,m3); | |
643 | // | |
644 | oempv->AddNode(ob1v,1,new TGeoTranslation(0.,0.975,-39.25)); | |
645 | oempv->AddNode(ob2v,1,new TGeoTranslation(0.,0.975,-26.3)); | |
646 | oempv->AddNode(ob3v,1,new TGeoTranslation(0.,0.975,-13.35)); | |
647 | oempv->AddNode(ob4v,1,new TGeoTranslation(0.,0.975,0.15)); | |
648 | oempv->AddNode(ob5v,1,new TGeoTranslation(0.,0.975,14.15)); | |
649 | oempv->AddNode(ob6v,1,new TGeoTranslation(0.,0.975,26.7)); | |
650 | oempv->AddNode(ob7v,1,new TGeoTranslation(0.,0.975,39.25)); | |
651 | // vertical bars | |
652 | TGeoBBox *ob8 = new TGeoBBox(0.8,2.915,5.1); | |
653 | TGeoBBox *ob9 = new TGeoBBox(0.8,2.915,5.975); | |
654 | TGeoBBox *ob10 = new TGeoBBox(0.8,2.915,5.775); | |
655 | TGeoBBox *ob11 = new TGeoBBox(0.8,2.915,6.25); | |
656 | TGeoBBox *ob12 = new TGeoBBox(0.8,2.915,6.5); | |
657 | // | |
658 | TGeoVolume *ob8v = new TGeoVolume("TPC_ORB8",ob8,m3); | |
659 | TGeoVolume *ob9v = new TGeoVolume("TPC_ORB9",ob9,m3); | |
660 | TGeoVolume *ob10v = new TGeoVolume("TPC_ORB10",ob10,m3); | |
661 | TGeoVolume *ob11v = new TGeoVolume("TPC_ORB11",ob11,m3); | |
662 | TGeoVolume *ob12v = new TGeoVolume("TPC_ORB12",ob12,m3); | |
663 | // | |
664 | oempv->AddNode(ob8v,1,new TGeoTranslation(0.,0.975,-44.55)); | |
665 | oempv->AddNode(ob8v,2,new TGeoTranslation(0.,0.975,44.55)); | |
666 | oempv->AddNode(ob9v,1,new TGeoTranslation(0.,0.975,-33.075)); | |
667 | oempv->AddNode(ob9v,2,new TGeoTranslation(0.,0.975,-19.525)); | |
668 | oempv->AddNode(ob10v,1,new TGeoTranslation(0.,0.975,20.125)); | |
669 | oempv->AddNode(ob10v,2,new TGeoTranslation(0.,0.975,33.275)); | |
670 | oempv->AddNode(ob11v,1,new TGeoTranslation(0.,0.975,-6.9)); | |
671 | oempv->AddNode(ob12v,1,new TGeoTranslation(0.,0.975,7.45)); | |
672 | // | |
673 | // holes for connectors | |
674 | // | |
675 | fileName = gSystem->Getenv("ALICE_ROOT"); | |
676 | fileName += "/TPC/conn_oroc.dat"; | |
677 | in.open(fileName.Data(), ios_base::in); // asci file | |
678 | for(Int_t i =0;i<78;i++){ | |
679 | Double_t y =3.89; | |
680 | Double_t x,z,ang; | |
681 | Double_t x1,z1,x2,z2; | |
682 | in>>x>>z>>ang; | |
683 | Double_t xr = 4.7*TMath::Sin(ang*TMath::DegToRad()); | |
684 | Double_t zr = 4.7*TMath::Cos(ang*TMath::DegToRad()); | |
685 | // | |
686 | x1=xr+x; x2=-xr+x; z1=zr+z; z2 = -zr+z; | |
687 | // | |
688 | TGeoRotation *rr = new TGeoRotation(); | |
689 | rr->RotateY(ang); | |
690 | z1-=54.95; | |
691 | z2-=54.95; | |
692 | TGeoCombiTrans *trans1 = new TGeoCombiTrans("trans1",x1,y,z1,rr); | |
693 | TGeoCombiTrans *trans2 = new TGeoCombiTrans("trans2",x2,y,z2,rr); | |
694 | obdv->AddNode(connv,i+1,trans1); | |
695 | obdv->AddNode(connv,i+79,trans2); | |
696 | } | |
697 | in.close(); | |
698 | // cap | |
699 | new TGeoTrd1("ocap",23.3874,43.5239,1.09,57.1); | |
700 | new TGeoTrd1("ohole",22.2938,40.5084,1.09,51.65); | |
701 | TGeoTranslation *tr5 = new TGeoTranslation("tr5",0.,0.,-2.15); | |
702 | tr5->RegisterYourself(); | |
703 | TGeoCompositeShape *oc = new TGeoCompositeShape("ocap-ohole:tr5"); | |
704 | TGeoVolume *ocv = new TGeoVolume("TPC_ORCAP",oc,m3); | |
705 | // | |
706 | // pad plane and wire fixations | |
707 | // | |
708 | TGeoTrd1 *opp = new TGeoTrd1(23.3874,43.5239,0.3,57.1); | |
709 | TGeoVolume *oppv = new TGeoVolume("TPC_ORPP",opp,m4); | |
710 | // | |
711 | tga=(43.5239-23.3874)/114.2; | |
712 | TGeoPara *f3 = new TGeoPara(.7,.6,57.1,0.,-10.,0.); | |
713 | TGeoPara *f4 = new TGeoPara(.7,.6,57.1,0.,10.,0.); | |
714 | xx = 57.1*tga+23.3874-0.7; | |
715 | TGeoVolume *f3v = new TGeoVolume("TPC_ORF1",f3,m4); | |
716 | TGeoVolume *f4v = new TGeoVolume("TPC_ORF2",f4,m4); | |
717 | // | |
718 | TGeoVolumeAssembly *oroc = new TGeoVolumeAssembly("TPC_OROC"); | |
719 | // | |
720 | oroc->AddNode(obdv,1); | |
721 | oroc->AddNode(ocv,1,new TGeoTranslation(0.,3.1,2.15)); | |
722 | oroc->AddNode(oppv,1,new TGeoTranslation(0.,4.49,2.15)); | |
723 | oroc->AddNode(f3v,1,new TGeoTranslation(-xx,5.39,2.15)); | |
724 | oroc->AddNode(f4v,1,new TGeoTranslation(xx,5.39,2.15)); | |
725 | // | |
726 | // now iroc and oroc are placed into a sector... | |
727 | // | |
728 | TGeoVolumeAssembly *secta = new TGeoVolumeAssembly("TPC_SECT"); // a-side | |
729 | TGeoVolumeAssembly *sectc = new TGeoVolumeAssembly("TPC_SECT"); // c-side | |
730 | TGeoRotation rot1("rot1",90.,90.,0.); | |
731 | TGeoRotation rot2("rot2"); | |
732 | rot2.RotateY(10.); | |
733 | TGeoRotation *rot = new TGeoRotation("rot"); | |
734 | *rot=rot1*rot2; | |
735 | // | |
736 | Double_t x0,y0; | |
737 | x0=110.2*TMath::Cos(openingAngle); | |
738 | y0=110.2*TMath::Sin(openingAngle); | |
20527578 | 739 | TGeoCombiTrans *combi1a = new TGeoCombiTrans("combi1",x0,y0,1.09+0.195,rot); //a-side |
740 | TGeoCombiTrans *combi1c = new TGeoCombiTrans("combi1",x0,y0,1.09+0.222,rot); //c-side | |
457e2170 | 741 | x0=188.45*TMath::Cos(openingAngle); |
742 | y0=188.45*TMath::Sin(openingAngle); | |
20527578 | 743 | TGeoCombiTrans *combi2a = new TGeoCombiTrans("combi2",x0,y0,0.99+0.195,rot); //a-side |
744 | TGeoCombiTrans *combi2c = new TGeoCombiTrans("combi2",x0,y0,0.99+0.222,rot); //c-side | |
457e2170 | 745 | // |
746 | // | |
747 | // A-side | |
748 | // | |
749 | secta->AddNode(ch,1); | |
750 | secta->AddNode(iroc,1,combi1a); | |
751 | secta->AddNode(oroc,1,combi2a); | |
752 | // | |
753 | // C-side | |
754 | // | |
755 | sectc->AddNode(ch,1); | |
756 | sectc->AddNode(iroc,1,combi1c); | |
757 | sectc->AddNode(oroc,1,combi2c); | |
758 | // | |
759 | // now I try to make wheels... | |
760 | // | |
761 | TGeoVolumeAssembly *wheela = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
762 | TGeoVolumeAssembly *wheelc = new TGeoVolumeAssembly("TPC_ENDCAP"); | |
763 | // | |
764 | for(Int_t i =0;i<18;i++){ | |
765 | Double_t phi = (20.*i); | |
766 | TGeoRotation *r = new TGeoRotation(); | |
767 | r->RotateZ(phi); | |
768 | wheela->AddNode(secta,i+1,r); | |
769 | wheelc->AddNode(sectc,i+1,r); | |
770 | ||
771 | } | |
772 | // wheels in the drift volume! | |
773 | ||
774 | TGeoCombiTrans *combi3 = new TGeoCombiTrans("combi3",0.,0.,256.6,ref); | |
775 | v9->AddNode(wheela,1,combi3); | |
776 | v9->AddNode(wheelc,2,new TGeoTranslation(0.,0.,-256.6)); | |
777 | //_____________________________________________________________ | |
778 | // service support wheel | |
779 | //_____________________________________________________________ | |
780 | TGeoPgon *sw = new TGeoPgon(0.,20.,1,2); | |
781 | sw->DefineSection(0,-4.,80.5,251.75); | |
782 | sw->DefineSection(1,4.,80.5,251.75); | |
783 | TGeoVolume *swv = new TGeoVolume("TPC_SWSEG",sw,m3); //Al | |
784 | // | |
785 | thick=1.; | |
786 | shift = thick/TMath::Sin(openingAngle); | |
787 | TGeoPgon *sh = new TGeoPgon(0.,20.,1,2); | |
788 | sh->DefineSection(0,-4.,81.5-shift,250.75-shift); | |
789 | sh->DefineSection(1,4.,81.5-shift,250.75-shift); | |
790 | TGeoVolume *shv = new TGeoVolume("TPC_SWS1",sh,m1); //Air | |
791 | // | |
792 | TGeoMedium *m9 = gGeoManager->GetMedium("TPC_Si"); | |
793 | TGeoPgon *el = new TGeoPgon(0.,20.,1,2); | |
794 | el->DefineSection(0,-1.872,81.5-shift,250.75-shift); | |
795 | el->DefineSection(1,1.872,81.5-shift,250.75-shift); | |
796 | TGeoVolume *elv = new TGeoVolume("TPC_ELEC",el,m9); //Si | |
797 | // | |
798 | shv->AddNode(elv,1); | |
799 | // | |
800 | // | |
801 | ys = shift*TMath::Sin(openingAngle); | |
802 | xs = shift*TMath::Cos(openingAngle); | |
803 | swv->AddNode(shv,1,new TGeoTranslation(xs,ys,0.)); | |
804 | // cover | |
805 | TGeoPgon *co = new TGeoPgon(0.,20.,1,2); | |
806 | co->DefineSection(0,-0.5,77.,255.25); | |
807 | co->DefineSection(1,0.5,77.,255.25); | |
808 | TGeoVolume *cov = new TGeoVolume("TPC_SWC1",co,m3);//Al | |
809 | // hole in a cover | |
810 | TGeoPgon *coh = new TGeoPgon(0.,20.,1,2); | |
811 | shift=4./TMath::Sin(openingAngle); | |
812 | coh->DefineSection(0,-0.5,85.-shift,247.25-shift); | |
813 | coh->DefineSection(1,0.5,85.-shift,247.25-shift); | |
814 | // | |
815 | TGeoVolume *cohv = new TGeoVolume("TPC_SWC2",coh,m1); | |
816 | // | |
817 | ys = shift*TMath::Sin(openingAngle); | |
818 | xs = shift*TMath::Cos(openingAngle); | |
819 | cov->AddNode(cohv,1,new TGeoTranslation(xs,ys,0.)); | |
820 | // | |
821 | // Sector as an Assembly | |
822 | // | |
823 | TGeoVolumeAssembly *swhs = new TGeoVolumeAssembly("TPC_SSWSEC"); | |
824 | swhs->AddNode(swv,1); | |
825 | swhs->AddNode(cov,1,new TGeoTranslation(0.,0.,-4.5)); | |
826 | swhs->AddNode(cov,2,new TGeoTranslation(0.,0.,4.5)); | |
827 | // | |
828 | // SSW as an Assembly of sectors | |
829 | // | |
830 | TGeoVolumeAssembly *swheel = new TGeoVolumeAssembly("TPC_SSWHEEL"); | |
831 | for(Int_t i =0;i<18;i++){ | |
832 | Double_t phi = (20.*i); | |
833 | TGeoRotation *r = new TGeoRotation(); | |
834 | r->RotateZ(phi); | |
835 | swheel->AddNode(swhs,i+1,r); | |
836 | } | |
837 | v1->AddNode(swheel,1,new TGeoTranslation(0.,0.,-284.6)); | |
838 | v1->AddNode(swheel,2,new TGeoTranslation(0.,0.,284.6)); | |
839 | ||
840 | // sensitive strips - strip "0" is always set | |
841 | // conditional | |
842 | Int_t totrows; | |
843 | totrows = fTPCParam->GetNRowLow() + fTPCParam->GetNRowUp(); | |
844 | Double_t *upar; | |
845 | upar=NULL; | |
846 | gGeoManager->Volume("TPC_Strip","PGON",m5->GetId(),upar); | |
847 | upar=new Double_t [10]; | |
848 | upar[0]=0.; | |
849 | upar[1]=360.; | |
850 | upar[2]=18.; | |
851 | upar[3]=2.; | |
852 | // | |
853 | upar[4]=-124.8; | |
854 | upar[7]=124.8; | |
855 | ||
856 | Double_t rlow=fTPCParam->GetPadRowRadiiLow(0); | |
857 | ||
858 | upar[5]=rlow; | |
859 | upar[6]=rlow+.01; | |
860 | upar[8]=upar[5]; | |
861 | upar[9]=upar[6]; | |
862 | // | |
863 | gGeoManager->Node("TPC_Strip",1,"TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
864 | gGeoManager->Node("TPC_Strip",totrows+1, | |
865 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
866 | // | |
867 | // now, strips optionally | |
868 | // | |
869 | if(fSens){ | |
870 | //lower sectors | |
871 | for(Int_t i=2;i<fTPCParam->GetNRowLow()+1;i++){ | |
872 | rlow=fTPCParam->GetPadRowRadiiLow(i-1); | |
873 | upar[5]=rlow; | |
874 | upar[6]=rlow+.01; | |
875 | upar[8]=upar[5]; | |
876 | upar[9]=upar[6]; | |
877 | gGeoManager->Node("TPC_Strip",i, | |
878 | "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
879 | gGeoManager->Node("TPC_Strip",totrows+i, | |
880 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
881 | } | |
882 | //upper sectors | |
883 | for(Int_t i=1;i<fTPCParam->GetNRowUp()+1;i++){ | |
884 | rlow=fTPCParam->GetPadRowRadiiUp(i-1); | |
885 | upar[5]=rlow; | |
886 | upar[6]=rlow+.01; | |
887 | upar[8]=upar[5]; | |
888 | upar[9]=upar[6]; | |
889 | gGeoManager->Node("TPC_Strip",i+fTPCParam->GetNRowLow(), | |
890 | "TPC_Drift",0.,0.,124.82,0,kTRUE,upar,10); | |
891 | gGeoManager->Node("TPC_Strip",totrows+i+fTPCParam->GetNRowLow(), | |
892 | "TPC_Drift",0.,0.,-124.82,0,kTRUE,upar,10); | |
893 | } | |
894 | }//strips | |
895 | //---------------------------------------------------------- | |
896 | // TPc Support Rods - MAKROLON | |
897 | //---------------------------------------------------------- | |
898 | TGeoMedium *m6=gGeoManager->GetMedium("TPC_Makrolon"); | |
899 | TGeoMedium *m7=gGeoManager->GetMedium("TPC_Cu"); | |
78134e48 | 900 | TGeoMedium *m10 = gGeoManager->GetMedium("TPC_Alumina"); |
901 | TGeoMedium *m11 = gGeoManager->GetMedium("TPC_Peek"); | |
cc8d387d | 902 | TGeoMedium *m14 = gGeoManager->GetMedium("TPC_Alumina1"); |
c5d5037c | 903 | |
6c0ba48f | 904 | TGeoMedium *m13 = gGeoManager->GetMedium("TPC_Brass"); |
905 | // | |
906 | // tpc rod is an assembly of 10 long parts and 2 short parts | |
907 | // connected with alu rings and plagged on both sides. | |
457e2170 | 908 | // |
457e2170 | 909 | // |
6c0ba48f | 910 | // tpc rod long |
911 | // | |
912 | TGeoPcon *rod = new TGeoPcon("rod",0.,360.,6); | |
913 | rod->DefineSection(0,-10.43,1.92,2.08); | |
914 | rod->DefineSection(1,-9.75,1.92,2.08); | |
915 | ||
916 | rod->DefineSection(2,-9.75,1.8,2.2); | |
917 | rod->DefineSection(3,9.75,1.8,2.2); | |
918 | ||
919 | rod->DefineSection(4,9.75,1.92,2.08); | |
920 | rod->DefineSection(5,10.43,1.92,2.08); | |
921 | // | |
922 | TGeoVolume *mrodl = new TGeoVolume("TPC_mrodl",rod,m6); | |
923 | // | |
924 | // tpc rod short | |
925 | // | |
926 | TGeoPcon *rod1 = new TGeoPcon("rod1",0.,360.,6); | |
927 | rod1->DefineSection(0,-8.93,1.92,2.08); | |
928 | rod1->DefineSection(1,-8.25,1.92,2.08); | |
929 | ||
930 | rod1->DefineSection(2,-8.25,1.8,2.2); | |
931 | rod1->DefineSection(3,8.25,1.8,2.2); | |
932 | ||
933 | rod1->DefineSection(4,8.25,1.92,2.08); | |
934 | rod1->DefineSection(5,8.93,1.92,2.08); | |
935 | // | |
936 | TGeoVolume *mrods = new TGeoVolume("TPC_mrods",rod1,m6); | |
937 | // | |
938 | // below is for the resistor rod | |
939 | // | |
940 | // hole for the brass connectors | |
941 | // | |
942 | ||
943 | new TGeoTube("hhole",0.,0.3,0.3); | |
944 | // | |
945 | //transformations for holes - initialy they | |
946 | // are placed at x=0 and negative y | |
947 | // | |
948 | TGeoRotation *rhole = new TGeoRotation(); | |
949 | rhole->RotateX(90.); | |
950 | TGeoCombiTrans *transf[13]; | |
951 | Char_t name[30]; | |
952 | for(Int_t i=0;i<13;i++){ | |
953 | //sprintf(name,"transf%d",i); | |
954 | snprintf(name,30,"transf%d",i); | |
955 | transf[i]= new TGeoCombiTrans(name,0.,-2.,-9.+i*1.5,rhole); | |
956 | transf[i]->RegisterYourself(); | |
957 | } | |
958 | // union expression for holes | |
959 | TString operl("hhole:transf0"); | |
960 | for (Int_t i=1;i<13;i++){ | |
961 | //sprintf(name,"+hhole:transf%d",i); | |
962 | snprintf(name,30,"+hhole:transf%d",i); | |
963 | operl.Append(name); | |
964 | } | |
78134e48 | 965 | // |
6c0ba48f | 966 | TString opers("hhole:transf1"); |
967 | for (Int_t i=2;i<12;i++){ | |
968 | //sprintf(name,"+hhole:transf%d",i); | |
969 | snprintf(name,30,"+hhole:transf%d",i); | |
970 | opers.Append(name); | |
971 | } | |
972 | //union of holes | |
973 | new TGeoCompositeShape("hlv",operl.Data()); | |
974 | new TGeoCompositeShape("hsv",opers.Data()); | |
975 | // | |
976 | TGeoCompositeShape *rodl = new TGeoCompositeShape("rodl","rod-hlv"); | |
977 | TGeoCompositeShape *rods = new TGeoCompositeShape("rods","rod1-hsv"); | |
978 | //rods - volumes - makrolon rods with holes | |
979 | TGeoVolume *rodlv = new TGeoVolume("TPC_rodl",rodl,m6); | |
980 | TGeoVolume *rodsv = new TGeoVolume("TPC_rods",rods,m6); | |
981 | //brass connectors | |
982 | //connectors | |
983 | TGeoTube *bcon = new TGeoTube(0.,0.3,0.3);//connectors | |
984 | TGeoVolume *bconv = new TGeoVolume("TPC_bcon",bcon,m13); | |
985 | // | |
986 | // hooks holding strips | |
987 | // | |
988 | new TGeoBBox("hk1",0.625,0.015,0.75); | |
989 | new TGeoBBox("hk2",0.625,0.015,0.15); | |
990 | TGeoTranslation *tr21 = new TGeoTranslation("tr21",0.,-0.03,-0.6); | |
991 | TGeoTranslation *tr12 = new TGeoTranslation("tr12",0.,-0.03,0.6); | |
992 | tr21->RegisterYourself(); | |
993 | tr12->RegisterYourself(); | |
994 | ||
995 | TGeoCompositeShape *hook = new TGeoCompositeShape("hook","hk1+hk2:tr21+hk2:tr12"); | |
996 | TGeoVolume *hookv = new TGeoVolume("TPC_hook",hook,m13); | |
997 | // | |
998 | // assembly of the short rod with connectors and hooks | |
999 | // | |
1000 | // | |
1001 | // short rod | |
1002 | // | |
1003 | TGeoVolumeAssembly *spart = new TGeoVolumeAssembly("TPC_spart"); | |
1004 | // | |
1005 | spart->AddNode( rodsv,1); | |
1006 | for(Int_t i=1;i<12;i++){ | |
1007 | spart->AddNode(bconv,i,transf[i]); | |
1008 | } | |
1009 | for(Int_t i =0;i<11;i++){ | |
1010 | spart->AddNode(hookv,i+1,new TGeoTranslation(0.,-2.315,-7.5+i*1.5)); | |
1011 | } | |
1012 | // | |
1013 | // long rod | |
1014 | // | |
1015 | TGeoVolumeAssembly *lpart = new TGeoVolumeAssembly("TPC_lpart"); | |
1016 | // | |
1017 | lpart->AddNode( rodlv,1); | |
1018 | for(Int_t i=0;i<13;i++){ | |
1019 | lpart->AddNode(bconv,i+12,transf[i]); | |
1020 | } | |
1021 | for(Int_t i =0;i<13;i++){ | |
1022 | lpart->AddNode(hookv,i+12,new TGeoTranslation(0.,-2.315,-9.+i*1.5)); | |
1023 | } | |
1024 | // | |
1025 | // alu ring | |
1026 | // | |
1027 | new TGeoTube("ring1",2.1075,2.235,0.53); | |
1028 | new TGeoTube("ring2",1.7925,1.89,0.43); | |
1029 | new TGeoTube("ring3",1.89,2.1075,0.05); | |
1030 | TGeoCompositeShape *ring = new TGeoCompositeShape("ring","ring1+ring2+ring3"); | |
1031 | TGeoVolume *ringv = new TGeoVolume("TPC_ring",ring,m3); | |
1032 | // | |
1033 | // rod assembly | |
1034 | // | |
1035 | TGeoVolumeAssembly *tpcrrod = new TGeoVolumeAssembly("TPC_rrod");//rrod | |
1036 | TGeoVolumeAssembly *tpcmrod = new TGeoVolumeAssembly("TPC_mrod");//makrolon rod | |
1037 | //long pieces | |
1038 | for(Int_t i=0;i<11;i++){ | |
1039 | tpcrrod->AddNode(ringv,i+1,new TGeoTranslation(0.,0.,-105.+i*21)); | |
1040 | tpcmrod->AddNode(ringv,i+12,new TGeoTranslation(0.,0.,-105.+i*21)); | |
1041 | } | |
1042 | for(Int_t i=0;i<10;i++){ | |
1043 | tpcrrod->AddNode(lpart,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));//resistor rod | |
1044 | tpcmrod->AddNode(mrodl,i+1,new TGeoTranslation(0.,0.,-94.5+i*21));//makrolon rod | |
1045 | } | |
78134e48 | 1046 | // |
6c0ba48f | 1047 | // right plug - identical for all rods |
78134e48 | 1048 | // |
6c0ba48f | 1049 | TGeoPcon *tpcrp = new TGeoPcon(0.,360.,6); |
78134e48 | 1050 | // |
6c0ba48f | 1051 | tpcrp->DefineSection(0,123.05,1.89,2.1075); |
1052 | tpcrp->DefineSection(1,123.59,1.89,2.1075); | |
1053 | // | |
1054 | tpcrp->DefineSection(2,123.59,1.8,2.2); | |
1055 | tpcrp->DefineSection(3,127.,1.8,2.2); | |
1056 | // | |
1057 | tpcrp->DefineSection(4,127.,0.,2.2); | |
1058 | tpcrp->DefineSection(5,127.5,0.,2.2); | |
1059 | // | |
1060 | TGeoVolume *tpcrpv = new TGeoVolume("TPC_RP",tpcrp,m6); | |
1061 | // | |
1062 | // adding short pieces and right plug | |
78134e48 | 1063 | // |
6c0ba48f | 1064 | tpcrrod->AddNode(spart,1,new TGeoTranslation(0.,0.,-114.)); |
1065 | tpcrrod->AddNode(spart,2,new TGeoTranslation(0.,0.,114.)); | |
1066 | tpcrrod->AddNode(ringv,23,new TGeoTranslation(0.,0.,-123.)); | |
1067 | tpcrrod->AddNode(ringv,24,new TGeoTranslation(0.,0.,123.)); | |
1068 | tpcrrod->AddNode(tpcrpv,1); | |
78134e48 | 1069 | // |
6c0ba48f | 1070 | tpcmrod->AddNode(mrods,1,new TGeoTranslation(0.,0.,-114.)); |
1071 | tpcmrod->AddNode(mrods,2,new TGeoTranslation(0.,0.,114.)); | |
1072 | tpcmrod->AddNode(ringv,25,new TGeoTranslation(0.,0.,-123.)); | |
1073 | tpcmrod->AddNode(ringv,26,new TGeoTranslation(0.,0.,123.)); | |
1074 | tpcmrod->AddNode(tpcrpv,2); | |
78134e48 | 1075 | // |
6c0ba48f | 1076 | // from the ringv position to the CM is 3.0 cm! |
1077 | //---------------------------------------- | |
78134e48 | 1078 | // |
78134e48 | 1079 | // |
6c0ba48f | 1080 | //HV rods - makrolon + 0.58cm (diameter) Cu ->check the length |
1081 | TGeoTube *hvr = new TGeoTube(0.,1.465,123.); | |
1082 | TGeoTube *hvc = new TGeoTube(0.,0.29,123.); | |
78134e48 | 1083 | // |
6c0ba48f | 1084 | TGeoVolume *hvrv = new TGeoVolume("TPC_HV_Rod",hvr,m6); |
1085 | TGeoVolume *hvcv = new TGeoVolume("TPC_HV_Cable",hvc,m7); | |
1086 | hvrv->AddNode(hvcv,1); | |
78134e48 | 1087 | // |
6c0ba48f | 1088 | //resistor rod |
78134e48 | 1089 | // |
6c0ba48f | 1090 | TGeoTube *cr = new TGeoTube(0.,0.45,123.); |
1091 | TGeoTube *cw = new TGeoTube(0.,0.15,123.); | |
1092 | TGeoVolume *crv = new TGeoVolume("TPC_CR",cr,m10); | |
1093 | TGeoVolume *cwv = new TGeoVolume("TPC_W",cw,m12); | |
78134e48 | 1094 | // |
6c0ba48f | 1095 | // ceramic rod with water |
a3d2be59 | 1096 | // |
6c0ba48f | 1097 | crv->AddNode(cwv,1); |
1098 | // | |
1099 | //peek rod | |
1100 | // | |
1101 | TGeoTube *pr =new TGeoTube(0.2,0.35,123.); | |
1102 | TGeoVolume *prv = new TGeoVolume("TPC_PR",pr,m11); | |
1103 | // | |
1104 | // copper plates with connectors | |
1105 | // | |
1106 | new TGeoTube("tub",0.,1.7,0.025); | |
1107 | // | |
1108 | // half space - points on the plane and a normal vector | |
1109 | // | |
1110 | Double_t n[3],p[3]; | |
1111 | Double_t slope = TMath::Tan(22.*TMath::DegToRad()); | |
1112 | Double_t intp = 1.245; | |
1113 | // | |
1114 | Double_t b = slope*slope+1.; | |
1115 | p[0]=intp*slope/b; | |
1116 | p[1]=-intp/b; | |
1117 | p[2]=0.; | |
1118 | // | |
1119 | n[0]=-p[0]; | |
1120 | n[1]=-p[1]; | |
1121 | n[2]=0.; | |
1122 | Double_t norm; | |
1123 | norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]); | |
1124 | n[0] /= norm; | |
1125 | n[1] /=norm; | |
1126 | // | |
1127 | new TGeoHalfSpace("sp1",p,n); | |
1128 | // | |
1129 | slope = -slope; | |
1130 | // | |
1131 | p[0]=intp*slope/b; | |
1132 | p[1]=-intp/b; | |
1133 | // | |
1134 | n[0]=-p[0]; | |
1135 | n[1]=-p[1]; | |
1136 | norm=TMath::Sqrt(n[0]*n[0]+n[1]*n[1]); | |
1137 | n[0] /= norm; | |
1138 | n[1] /=norm; | |
1139 | // | |
1140 | new TGeoHalfSpace("sp2",p,n); | |
1141 | // holes for rods | |
1142 | //holes | |
1143 | new TGeoTube("h1",0.,0.5,0.025); | |
1144 | new TGeoTube("h2",0.,0.35,0.025); | |
1145 | //translations: | |
1146 | TGeoTranslation *ttr11 = new TGeoTranslation("ttr11",-0.866,0.5,0.); | |
1147 | TGeoTranslation *ttr22 = new TGeoTranslation("ttr22",0.866,0.5,0.); | |
1148 | ttr11->RegisterYourself(); | |
1149 | ttr22->RegisterYourself(); | |
1150 | // elastic connector | |
1151 | new TGeoBBox("elcon",0.72,0.005,0.3); | |
1152 | TGeoRotation *crr1 = new TGeoRotation(); | |
1153 | crr1->RotateZ(-22.); | |
1154 | TGeoCombiTrans *ctr1 = new TGeoCombiTrans("ctr1",-0.36011, -1.09951,-0.325,crr1); | |
1155 | ctr1->RegisterYourself(); | |
1156 | TGeoCompositeShape *cs1 = new TGeoCompositeShape("cs1", | |
1157 | "(((((tub-h1:ttr11)-h1:ttr22)-sp1)-sp2)-h2)+elcon:ctr1"); | |
1158 | // | |
1159 | TGeoVolume *csvv = new TGeoVolume("TPC_RR_CU",cs1,m7); | |
1160 | // | |
1161 | // resistor rod assembly 2 ceramic rods, peak rod, Cu plates | |
1162 | // and resistors | |
1163 | // | |
1164 | TGeoVolumeAssembly *rrod = new TGeoVolumeAssembly("TPC_RRIN"); | |
1165 | // rods | |
1166 | rrod->AddNode(crv,1,ttr11); | |
1167 | rrod->AddNode(crv,2,ttr22); | |
1168 | rrod->AddNode(prv,1); | |
1169 | //Cu plates | |
1170 | for(Int_t i=0;i<165;i++){ | |
1171 | rrod->AddNode(csvv,i+1,new TGeoTranslation(0.,0.,-122.675+i*1.5)); | |
1172 | } | |
1173 | //resistors | |
1174 | TGeoTube *res = new TGeoTube(0.,0.15,0.5); | |
cc8d387d | 1175 | TGeoVolume *resv = new TGeoVolume("TPC_RES",res,m14); |
6c0ba48f | 1176 | TGeoVolumeAssembly *ress = new TGeoVolumeAssembly("TPC_RES_CH"); |
1177 | ress->AddNode(resv,1,new TGeoTranslation(0.2,0.,0.)); | |
1178 | ress->AddNode(resv,2,new TGeoTranslation(-0.2,0.,0.)); | |
1179 | // | |
1180 | TGeoRotation *crr2 = new TGeoRotation(); | |
1181 | crr2->RotateY(30.); | |
1182 | TGeoRotation *crr3 = new TGeoRotation(); | |
1183 | crr3->RotateY(-30.); | |
1184 | // | |
1185 | for(Int_t i=0;i<164;i+=2){ | |
1186 | rrod->AddNode(ress,i+1, new TGeoCombiTrans(0.,1.2,-121.925+i*1.5,crr2)); | |
1187 | rrod->AddNode(ress,i+2, new TGeoCombiTrans(0.,1.2,-121.925+(i+1)*1.5,crr3)); | |
1188 | } | |
1189 | ||
1190 | tpcrrod->AddNode(rrod,1,new TGeoCombiTrans(0.,0.,0.5,crr1)); | |
1191 | // | |
1192 | // rod left head with holders - inner | |
1193 | // | |
1194 | // first element - support for inner holder TPC_IHS | |
1195 | Double_t shift1[3] = {0.0,-0.175,0.0}; | |
1196 | ||
1197 | new TGeoBBox("tpcihs1", 4.7, 0.66, 2.35); | |
1198 | new TGeoBBox("tpcihs2", 4.7, 0.485, 1.0, shift1); | |
1199 | new TGeoBBox("tpcihs3", 1.5, 0.485, 2.35, shift1); | |
1200 | new TGeoTube("tpcihs4", 0.0, 2.38, 0.1); | |
1201 | // | |
1202 | Double_t pointstrap[16]; | |
1203 | pointstrap[0]= 0.0; | |
1204 | pointstrap[1]= 0.0; | |
1205 | pointstrap[2]= 0.0; | |
1206 | pointstrap[3]= 1.08; | |
1207 | pointstrap[4]= 2.3; | |
1208 | pointstrap[5]= 1.08; | |
1209 | pointstrap[6]= 3.38; | |
1210 | pointstrap[7]= 0.0; | |
1211 | pointstrap[8]= 0.0; | |
1212 | pointstrap[9]= 0.0; | |
1213 | pointstrap[10]= 0.0; | |
1214 | pointstrap[11]= 1.08; | |
1215 | pointstrap[12]= 2.3; | |
1216 | pointstrap[13]= 1.08; | |
1217 | pointstrap[14]= 3.38; | |
1218 | pointstrap[15]= 0.0; | |
1219 | // | |
1220 | TGeoArb8 *tpcihs5 = new TGeoArb8("tpcihs5", 0.6, pointstrap); | |
1221 | // | |
1222 | // half space - cutting "legs" | |
1223 | // | |
1224 | p[0]=0.0; | |
1225 | p[1]=0.105; | |
1226 | p[2]=0.0; | |
1227 | // | |
1228 | n[0] = 0.0; | |
1229 | n[1] = 1.0; | |
1230 | n[2] = 0.0; | |
1231 | ||
1232 | new TGeoHalfSpace("cutil1", p, n); | |
1233 | ||
1234 | // | |
1235 | // transformations | |
1236 | // | |
1237 | TGeoTranslation *trans2 = new TGeoTranslation("trans2", 0.0, 2.84, 2.25); | |
1238 | trans2->RegisterYourself(); | |
1239 | TGeoTranslation*trans3= new TGeoTranslation("trans3", 0.0, 2.84, -2.25); | |
1240 | trans3->RegisterYourself(); | |
1241 | //support - composite volume | |
1242 | // | |
1243 | TGeoCompositeShape *tpcihs6 = new TGeoCompositeShape("tpcihs6", "tpcihs1-(tpcihs2+tpcihs3)-(tpcihs4:trans2)-(tpcihs4:trans3)-cutil1"); | |
1244 | // | |
1245 | // volumes - all makrolon | |
1246 | // | |
1247 | TGeoVolume *tpcihss = new TGeoVolume("TPC_IHSS", tpcihs6, m6); //support | |
1248 | TGeoVolume *tpcihst = new TGeoVolume("TPC_IHSTR",tpcihs5 , m6); //trapesoid | |
1249 | //now assembly | |
1250 | TGeoRotation *rot111 = new TGeoRotation(); | |
1251 | rot111->RotateY(180.0); | |
1252 | // | |
1253 | TGeoVolumeAssembly *tpcihs = new TGeoVolumeAssembly("TPC_IHS"); // assembly of the support | |
1254 | tpcihs->AddNode(tpcihss, 1); | |
1255 | tpcihs->AddNode(tpcihst, 1, new TGeoTranslation(-4.7, 0.66, 0.0)); | |
1256 | tpcihs->AddNode(tpcihst, 2, new TGeoCombiTrans(4.7, 0.66, 0.0, rot111)); | |
1257 | // | |
1258 | // two rod holders (TPC_IRH) assembled with the support | |
1259 | // | |
1260 | new TGeoBBox("tpcirh1", 4.7, 1.33, 0.5); | |
1261 | shift1[0]=-3.65; | |
1262 | shift1[1]=0.53; | |
1263 | shift1[2]=0.; | |
1264 | new TGeoBBox("tpcirh2", 1.05, 0.8, 0.5, shift1); | |
1265 | shift1[0]=3.65; | |
1266 | shift1[1]=0.53; | |
1267 | shift1[2]=0.; | |
1268 | new TGeoBBox("tpcirh3", 1.05, 0.8, 0.5, shift1); | |
1269 | shift1[0]=0.0; | |
1270 | shift1[1]=1.08; | |
1271 | shift1[2]=0.; | |
1272 | new TGeoBBox("tpcirh4", 1.9, 0.25, 0.5, shift1); | |
1273 | new TGeoTube("tpcirh5", 0, 1.9, 5); | |
1274 | // | |
1275 | TGeoTranslation *trans4 = new TGeoTranslation("trans4", 0, 0.83, 0.0); | |
1276 | trans4->RegisterYourself(); | |
1277 | // | |
1278 | TGeoCompositeShape *tpcirh6 = new TGeoCompositeShape("tpcirh6", "tpcirh1-tpcirh2-tpcirh3-(tpcirh5:trans4)-tpcirh4"); | |
1279 | // | |
1280 | // now volume | |
1281 | // | |
1282 | TGeoVolume *tpcirh = new TGeoVolume("TPC_IRH", tpcirh6, m6); | |
1283 | // | |
1284 | // and all together... | |
1285 | // | |
1286 | TGeoVolume *tpciclamp = new TGeoVolumeAssembly("TPC_ICLP"); | |
1287 | tpciclamp->AddNode(tpcihs, 1); | |
1288 | tpciclamp->AddNode(tpcirh, 1, new TGeoTranslation(0, 1.99, 1.1)); | |
1289 | tpciclamp->AddNode(tpcirh, 2, new TGeoTranslation(0, 1.99, -1.1)); | |
1290 | // | |
1291 | // and now left inner "head" | |
1292 | // | |
1293 | TGeoPcon *inplug = new TGeoPcon("inplug", 0.0, 360.0, 14); | |
1294 | ||
1295 | inplug->DefineSection(0, 0.3, 0.0, 2.2); | |
1296 | inplug->DefineSection(1, 0.6, 0.0, 2.2); | |
1297 | ||
1298 | inplug->DefineSection(2, 0.6, 0.0, 1.75); | |
1299 | inplug->DefineSection(3, 0.7, 0.0, 1.75); | |
1300 | ||
1301 | inplug->DefineSection(4, 0.7, 1.55, 1.75); | |
1302 | inplug->DefineSection(5, 1.6, 1.55, 1.75); | |
1303 | ||
1304 | inplug->DefineSection(6, 1.6, 1.55, 2.2); | |
1305 | inplug->DefineSection(7, 1.875, 1.55, 2.2); | |
1306 | ||
1307 | inplug->DefineSection(8, 1.875, 1.55, 2.2); | |
1308 | inplug->DefineSection(9, 2.47, 1.75, 2.2); | |
1309 | ||
1310 | inplug->DefineSection(10, 2.47, 1.75, 2.08); | |
1311 | inplug->DefineSection(11, 2.57, 1.8, 2.08); | |
1312 | ||
1313 | inplug->DefineSection(12, 2.57, 1.92, 2.08); | |
1314 | inplug->DefineSection(13, 2.95, 1.92, 2.08); | |
1315 | // | |
1316 | shift1[0]=0.0; | |
1317 | shift1[1]=-2.09; | |
1318 | shift1[2]=1.075; | |
1319 | // | |
1320 | new TGeoBBox("pcuti", 1.5, 0.11, 1.075, shift1); | |
1321 | // | |
1322 | TGeoCompositeShape *inplleft = new TGeoCompositeShape("inplleft", "inplug-pcuti"); | |
1323 | TGeoVolume *tpcinlplug = new TGeoVolume("TPC_INPLL", inplleft, m6); | |
1324 | // | |
1325 | // holder + plugs | |
1326 | // | |
1327 | TGeoVolume *tpcihpl = new TGeoVolumeAssembly("TPC_IHPL"); //holder+2 plugs (reflected) | |
1328 | tpcihpl->AddNode(tpcinlplug, 1); | |
1329 | tpcihpl->AddNode(tpcinlplug, 2,ref); | |
1330 | tpcihpl->AddNode(tpciclamp,1,new TGeoTranslation(0.0, -2.765, 0.0)); | |
1331 | // | |
1332 | // outer holders and clamps | |
1333 | // | |
1334 | ||
1335 | // outer membrane holder (between rods) | |
1336 | pointstrap[0]= 0.0; | |
1337 | pointstrap[1]= 0.0; | |
1338 | pointstrap[2]= 0.0; | |
1339 | pointstrap[3]= 2.8; | |
1340 | pointstrap[4]= 3.1; | |
1341 | pointstrap[5]= 2.8-3.1*TMath::Tan(15.*TMath::DegToRad()); | |
1342 | pointstrap[6]= 3.1; | |
1343 | pointstrap[7]= 0.0; | |
1344 | pointstrap[8]= 0.0; | |
1345 | pointstrap[9]= 0.0; | |
1346 | pointstrap[10]= 0.0; | |
1347 | pointstrap[11]= 2.8; | |
1348 | pointstrap[12]= 3.1; | |
1349 | pointstrap[13]= 2.8-3.1*TMath::Tan(15.*TMath::DegToRad()); | |
1350 | pointstrap[14]= 3.1; | |
1351 | pointstrap[15]= 0.0; | |
1352 | // | |
1353 | TGeoArb8 *tpcomh1 = new TGeoArb8("tpcomh1", 1.05, pointstrap); | |
1354 | TGeoBBox *tpcomh2 = new TGeoBBox("tpcomh2", 0.8, 1.4, 6); | |
1355 | // | |
1356 | TGeoVolume *tpcomh1v = new TGeoVolume("TPC_OMH1", tpcomh1, m7); | |
1357 | TGeoVolume *tpcomh2v = new TGeoVolume("TPC_OMH2", tpcomh2, m7); | |
1358 | // | |
1359 | TGeoVolume *tpcomh3v = new TGeoVolumeAssembly("TPC_OMH3"); // assembly1 | |
1360 | tpcomh3v->AddNode(tpcomh1v, 1, new TGeoTranslation(0.8, -1.4, 4.95)); | |
1361 | tpcomh3v->AddNode(tpcomh1v, 2, new TGeoTranslation(0.8, -1.4, -4.95)); | |
1362 | tpcomh3v->AddNode(tpcomh2v, 1); | |
1363 | // | |
1364 | shift1[0] = 0.9; | |
1365 | shift1[1] = -1.85; | |
1366 | shift1[2] = 0.0; | |
1367 | // | |
1368 | new TGeoBBox("tpcomh3", 1.65, 1.15, 3.4); | |
1369 | TGeoBBox *tpcomh4 = new TGeoBBox("tpcomh4", 0.75, 0.7, 3.4, shift1); | |
1370 | // | |
1371 | // halfspace 1 | |
1372 | // | |
1373 | p[0] = 0.0; | |
1374 | p[1] = -1.05; | |
1375 | p[2] = -3.4; | |
1376 | // | |
1377 | n[0] = 0.0; | |
1378 | n[1] = -1.0*TMath::Tan(30.*TMath::DegToRad()); | |
1379 | n[2] = 1.0; | |
1380 | // | |
1381 | new TGeoHalfSpace("cutomh1", p, n); | |
1382 | // | |
1383 | // halfspace 2 | |
1384 | // | |
1385 | p[0] = 0.0; | |
1386 | p[1] = -1.05; | |
1387 | p[2] = 3.4; | |
1388 | // | |
1389 | n[0] = 0.0; | |
1390 | n[1] = -1.0*TMath::Tan(30.*TMath::DegToRad()); | |
1391 | n[2] = -1.0; | |
1392 | // | |
1393 | new TGeoHalfSpace("cutomh2", p, n); | |
1394 | // | |
1395 | // halfspace 3 | |
1396 | // | |
1397 | p[0] = -1.65; | |
1398 | p[1] = 0.0; | |
1399 | p[2] = -0.9; | |
1400 | // | |
1401 | n[0] = 1.0*TMath::Tan(75.*TMath::DegToRad()); | |
1402 | n[1] = 0.0; | |
1403 | n[2] = 1.0; | |
1404 | // | |
1405 | new TGeoHalfSpace("cutomh3", p, n); | |
1406 | // | |
1407 | // halfspace 4 | |
1408 | // | |
1409 | p[0] = -1.65; | |
1410 | p[1] = 0.0; | |
1411 | p[2] = 0.9; | |
1412 | // | |
1413 | n[0] = 1.0*TMath::Tan(75*TMath::DegToRad()); | |
1414 | n[1] = 0.0; | |
1415 | n[2] = -1.0; | |
1416 | // | |
1417 | new TGeoHalfSpace("cutomh4", p, n); | |
1418 | // | |
1419 | // halsfspace 5 | |
1420 | // | |
1421 | p[0] = 1.65; | |
1422 | p[1] = -1.05; | |
1423 | p[2] = 0.0; | |
1424 | // | |
1425 | n[0] = -1.0; | |
1426 | n[1] = -1.0*TMath::Tan(20.*TMath::DegToRad()); | |
1427 | n[2] = 0.0; | |
1428 | // | |
1429 | new TGeoHalfSpace("cutomh5", p, n); | |
1430 | // | |
1431 | TGeoCompositeShape *tpcomh5 = new TGeoCompositeShape("tpcomh5", "tpcomh3-cutomh1-cutomh2-cutomh3-cutomh4-cutomh5"); | |
1432 | // | |
1433 | TGeoVolume *tpcomh5v = new TGeoVolume("TPC_OMH5",tpcomh5,m6); | |
1434 | TGeoVolume *tpcomh4v = new TGeoVolume("TPC_OMH6",tpcomh4,m6); | |
1435 | // | |
1436 | TGeoVolumeAssembly *tpcomh7v = new TGeoVolumeAssembly("TPC_OMH7"); | |
1437 | tpcomh7v->AddNode(tpcomh5v,1); | |
1438 | tpcomh7v->AddNode(tpcomh4v,1); | |
1439 | // | |
1440 | // full membrane holder - tpcomh3v + tpcomh7v | |
1441 | // | |
1442 | TGeoVolumeAssembly *tpcomh = new TGeoVolumeAssembly("TPC_OMH"); | |
1443 | tpcomh->AddNode(tpcomh3v,1,new TGeoTranslation(1.5,0.,0.)); | |
1444 | tpcomh->AddNode(tpcomh3v,2,new TGeoCombiTrans(-1.5,0.,0.,rot111)); | |
1445 | tpcomh->AddNode(tpcomh7v,1,new TGeoTranslation(0.65+1.5, 2.55, 0.0)); | |
1446 | tpcomh->AddNode(tpcomh7v,2,new TGeoCombiTrans(-0.65-1.5, 2.55, 0.0,rot111)); | |
1447 | // | |
1448 | // outer rod holder support | |
1449 | // | |
1450 | new TGeoBBox("tpcohs1", 3.8, 0.675, 2.35); | |
1451 | // | |
1452 | shift1[0] = 0.0; | |
1453 | shift1[1] = 0.175; | |
1454 | shift1[2] = 0.0; | |
1455 | // | |
1456 | new TGeoBBox("tpcohs2", 1.5, 0.5, 2.35, shift1); | |
1457 | new TGeoBBox("tpcohs3", 3.8, 0.5, 0.85, shift1); | |
1458 | // | |
1459 | shift1[0] = 0.0; | |
1460 | shift1[1] = -1.175; | |
1461 | shift1[2] = 0.0; | |
1462 | // | |
1463 | TGeoBBox *tpcohs4 = new TGeoBBox("tpsohs4", 3.1, 0.5, 0.7, shift1); | |
1464 | // | |
1465 | TGeoVolume *tpcohs4v = new TGeoVolume("TPC_OHS4", tpcohs4, m6); | |
1466 | // | |
1467 | p[0] = 0.0; | |
1468 | p[1] = -0.186; | |
1469 | p[2] = 0.0; | |
1470 | // | |
1471 | n[0] = 0.0; | |
1472 | n[1] = -1.0; | |
1473 | n[2] = 0.0; | |
1474 | // | |
1475 | new TGeoHalfSpace("cutohs1", p, n); | |
1476 | // | |
1477 | TGeoCompositeShape *tpcohs5 = new TGeoCompositeShape("tpcohs5", "tpcohs1-tpcohs2-tpcohs3-cutohs1"); | |
1478 | TGeoVolume *tpcohs5v = new TGeoVolume("TPC_OHS5", tpcohs5, m6); | |
1479 | // | |
1480 | TGeoVolumeAssembly *tpcohs = new TGeoVolumeAssembly("TPC_OHS"); | |
1481 | tpcohs->AddNode(tpcohs5v, 1); | |
1482 | tpcohs->AddNode(tpcohs4v, 1); | |
1483 | // | |
1484 | // outer rod holder itself | |
1485 | // | |
1486 | shift1[0] = 0.0; | |
1487 | shift1[1] = 1.325; | |
1488 | shift1[2] = 0.0; | |
1489 | new TGeoBBox("tpcorh1", 3.1, 1.825, 0.55); //from this box we cut pieces... | |
1490 | // | |
1491 | shift1[0] = -3.1; | |
1492 | shift1[1] = -0.5; | |
1493 | shift1[2] = 0.0; | |
1494 | // | |
1495 | new TGeoBBox("tpcorh2", 0.5, 2.75, 1.1, shift1); | |
1496 | // | |
1497 | shift1[0] = 3.1; | |
1498 | shift1[1] = -0.5; | |
1499 | shift1[2] = 0.0; | |
1500 | // | |
1501 | new TGeoBBox("tpcorh3", 0.5, 2.75, 1.1, shift1); | |
1502 | // | |
1503 | shift1[0] = 0.0; | |
1504 | shift1[1] = -0.5; | |
1505 | shift1[2] = -0.95; | |
1506 | // | |
1507 | new TGeoBBox("tpcorh4", 3.9, 2.75, 0.5, shift1); | |
1508 | // | |
1509 | shift1[0] = 0.0; | |
1510 | shift1[1] = -0.5; | |
1511 | shift1[2] = 0.0; | |
1512 | // | |
1513 | new TGeoBBox("tpcorh5", 1.95, 0.5, 1.1, shift1); | |
1514 | // | |
1515 | shift1[0] = 0.0; | |
1516 | shift1[1] = -0.5; | |
1517 | shift1[2] = 0.55; | |
1518 | // | |
1519 | new TGeoBBox("tpcorh6", 2.4, 0.5, 0.6, shift1); | |
1520 | // | |
1521 | new TGeoTube("tpcorh7", 0, 1.95, 0.85); | |
1522 | new TGeoTube("tpcorh8", 0, 2.4, 0.6); | |
1523 | // | |
1524 | TGeoTranslation *trans33 = new TGeoTranslation("trans33", 0.0, 0.0, 0.55); | |
1525 | trans33->RegisterYourself(); | |
1526 | // | |
1527 | TGeoCompositeShape *tpcorh9 = new TGeoCompositeShape("tpcorh9", "tpcorh1-tpcorh2-tpcorh3-tpcorh4-tpcorh5-tpcorh6-(tpcorh8:trans33)-tpcorh7"); | |
1528 | // | |
1529 | TGeoVolume *tpcorh9v = new TGeoVolume("TPC_ORH",tpcorh9,m6); //outer rod holder | |
1530 | // | |
1531 | // now 2 holders together | |
1532 | // | |
1533 | TGeoVolumeAssembly *tpcorh = new TGeoVolumeAssembly("TPC_ORH2"); | |
1534 | // | |
1535 | tpcorh->AddNode(tpcorh9v,1,new TGeoTranslation(0.0, 0.0, 1.25)); | |
1536 | tpcorh->AddNode(tpcorh9v,2,new TGeoCombiTrans(0.0, 0.0, -1.25,rot111)); | |
1537 | // | |
1538 | // outer rod plug left | |
1539 | // | |
1540 | TGeoPcon *outplug = new TGeoPcon("outplug", 0.0, 360.0, 14); | |
1541 | ||
1542 | outplug->DefineSection(0, 0.5, 0.0, 2.2); | |
1543 | outplug->DefineSection(1, 0.7, 0.0, 2.2); | |
1544 | ||
1545 | outplug->DefineSection(2, 0.7, 1.55, 2.2); | |
1546 | outplug->DefineSection(3, 0.8, 1.55, 2.2); | |
1547 | ||
1548 | outplug->DefineSection(4, 0.8, 1.55, 1.75); | |
1549 | outplug->DefineSection(5, 1.2, 1.55, 1.75); | |
1550 | ||
1551 | outplug->DefineSection(6, 1.2, 1.55, 2.2); | |
1552 | outplug->DefineSection(7, 1.875, 1.55, 2.2); | |
1553 | ||
1554 | outplug->DefineSection(8, 1.875, 1.55, 2.2); | |
1555 | outplug->DefineSection(9, 2.47, 1.75, 2.2); | |
1556 | ||
1557 | outplug->DefineSection(10, 2.47, 1.75, 2.08); | |
1558 | outplug->DefineSection(11, 2.57, 1.8, 2.08); | |
1559 | ||
1560 | outplug->DefineSection(12, 2.57, 1.92, 2.08); | |
1561 | outplug->DefineSection(13, 2.95, 1.92, 2.08); | |
1562 | // | |
1563 | shift1[0] = 0.0; | |
1564 | shift1[1] = 2.09; | |
1565 | shift1[2] = 1.01; | |
1566 | ||
1567 | new TGeoBBox("cutout", 2.5, 0.11, 1.01, shift1); | |
1568 | // | |
1569 | ||
1570 | TGeoCompositeShape *outplleft = new TGeoCompositeShape("outplleft", "outplug-cutout"); | |
1571 | TGeoVolume *outplleftv = new TGeoVolume("TPC_OPLL", outplleft, m6); | |
1572 | // | |
1573 | // support + holder + plug | |
1574 | // | |
1575 | ||
1576 | ||
1577 | TGeoVolumeAssembly *tpcohpl = new TGeoVolumeAssembly("TPC_OHPL"); | |
1578 | // | |
1579 | tpcohpl->AddNode(outplleftv,1); //plug | |
1580 | tpcohpl->AddNode(outplleftv,2,ref); //plug reflected | |
1581 | tpcohpl->AddNode(tpcorh,1); //rod holder | |
1582 | tpcohpl->AddNode(tpcohs,1,new TGeoTranslation(0.0, 3.925, 0)); // support | |
1583 | // | |
1584 | ||
1585 | // | |
1586 | // main membrane holder | |
1587 | // | |
1588 | pointstrap[0]= 0.0; | |
1589 | pointstrap[1]= 0.0; | |
1590 | pointstrap[2]= 0.0; | |
1591 | pointstrap[3]= 2.8; | |
1592 | pointstrap[4]= 3.1; | |
1593 | pointstrap[5]= 1.96; | |
1594 | pointstrap[6]= 3.1; | |
1595 | pointstrap[7]= 0.0; | |
1596 | pointstrap[8]= 0.0; | |
1597 | pointstrap[9]= 0.0; | |
1598 | pointstrap[10]= 0.0; | |
1599 | pointstrap[11]= 2.8; | |
1600 | pointstrap[12]= 3.1; | |
1601 | pointstrap[13]= 1.96; | |
1602 | pointstrap[14]= 3.1; | |
1603 | pointstrap[15]= 0.0; | |
1604 | // | |
1605 | TGeoArb8 *tpcmmh1 = new TGeoArb8("tpcmmh1", 1.75, pointstrap); | |
1606 | TGeoBBox *tpcmmh2 = new TGeoBBox("tpcmmh2", 0.8, 1.4, 12.5); | |
1607 | // | |
1608 | TGeoVolume *tpcmmh1v = new TGeoVolume("TPC_MMH1", tpcmmh1, m6); | |
1609 | TGeoVolume *tpcmmh2v = new TGeoVolume("TPC_MMH2", tpcmmh2, m6); | |
1610 | // | |
1611 | TGeoVolumeAssembly *tpcmmhs = new TGeoVolumeAssembly("TPC_MMHS"); | |
1612 | tpcmmhs->AddNode(tpcmmh1v,1,new TGeoTranslation(0.8, -1.4, 10.75)); | |
1613 | tpcmmhs->AddNode(tpcmmh1v,2,new TGeoTranslation(0.8, -1.4, -10.75)); | |
1614 | tpcmmhs->AddNode(tpcmmh2v,1); | |
1615 | // | |
1616 | // main membrahe holder clamp | |
1617 | // | |
1618 | shift1[0] = -0.75; | |
1619 | shift1[1] = -1.15; | |
1620 | shift1[2] = 0.0; | |
1621 | // | |
1622 | new TGeoBBox("tpcmmhc1", 1.65, 1.85, 8.9); | |
1623 | new TGeoBBox("tpcmmhc2", 0.9, 0.7, 8.9, shift1); | |
1624 | // | |
1625 | // half spaces - cuts | |
1626 | // | |
1627 | p[0] = -1.65; | |
1628 | p[1] = 0.0; | |
1629 | p[2] = -0.9; | |
1630 | // | |
1631 | n[0] = 8.0; | |
1632 | n[1] = 0.0; | |
1633 | n[2] = 8.0*TMath::Tan(13.*TMath::DegToRad()); | |
1634 | // | |
1635 | new TGeoHalfSpace("cutmmh1", p, n); | |
1636 | // | |
1637 | p[0] = -1.65; | |
1638 | p[1] = 0.0; | |
1639 | p[2] = 0.9; | |
1640 | // | |
1641 | n[0] = 8.0; | |
1642 | n[1] = 0.0; | |
1643 | n[2] = -8.0*TMath::Tan(13.*TMath::DegToRad()); | |
1644 | // | |
1645 | new TGeoHalfSpace("cutmmh2", p, n); | |
1646 | // | |
1647 | p[0] = 0.0; | |
1648 | p[1] = 1.85; | |
1649 | p[2] = -2.8; | |
1650 | // | |
1651 | n[0] = 0.0; | |
1652 | n[1] = -6.1; | |
1653 | n[2] = 6.1*TMath::Tan(20.*TMath::DegToRad()); | |
1654 | // | |
1655 | new TGeoHalfSpace("cutmmh3", p, n); | |
1656 | // | |
1657 | p[0] = 0.0; | |
1658 | p[1] = 1.85; | |
1659 | p[2] = 2.8; | |
1660 | // | |
1661 | n[0] = 0.0; | |
1662 | n[1] = -6.1; | |
1663 | n[2] = -6.1*TMath::Tan(20*TMath::DegToRad()); | |
1664 | // | |
1665 | new TGeoHalfSpace("cutmmh4", p, n); | |
1666 | // | |
1667 | p[0] = 0.75; | |
1668 | p[1] = 0.0; | |
1669 | p[2] = -8.9; | |
1670 | // | |
1671 | n[0] = 2.4*TMath::Tan(30*TMath::DegToRad()); | |
1672 | n[1] = 0.0; | |
1673 | n[2] = 2.4; | |
1674 | // | |
1675 | new TGeoHalfSpace("cutmmh5", p, n); | |
1676 | // | |
1677 | p[0] = 0.75; | |
1678 | p[1] = 0.0; | |
1679 | p[2] = 8.9; | |
1680 | // | |
1681 | n[0] = 2.4*TMath::Tan(30*TMath::DegToRad()); | |
1682 | n[1] = 0.0; | |
1683 | n[2] = -2.4; | |
1684 | // | |
1685 | new TGeoHalfSpace("cutmmh6", p, n); | |
1686 | ||
1687 | TGeoCompositeShape *tpcmmhc = new TGeoCompositeShape("TPC_MMHC", "tpcmmhc1-tpcmmhc2-cutmmh1-cutmmh2-cutmmh3-cutmmh4-cutmmh5-cutmmh6"); | |
1688 | ||
1689 | TGeoVolume *tpcmmhcv = new TGeoVolume("TPC_MMHC",tpcmmhc,m6); | |
1690 | // | |
1691 | TGeoVolume *tpcmmh = new TGeoVolumeAssembly("TPC_MMH"); | |
1692 | // | |
1693 | tpcmmh->AddNode(tpcmmhcv,1,new TGeoTranslation(0.65+1.5, 1.85, 0.0)); | |
1694 | tpcmmh->AddNode(tpcmmhcv,2,new TGeoCombiTrans(-0.65-1.5, 1.85, 0.0,rot111)); | |
1695 | tpcmmh->AddNode(tpcmmhs,1,new TGeoTranslation(1.5, 0.0, 0.0)); | |
1696 | tpcmmh->AddNode(tpcmmhs,2,new TGeoCombiTrans(-1.5, 0.0, 0.0,rot111)); | |
1697 | // | |
1698 | ||
1699 | // | |
1700 | ||
1701 | //-------------------------------------------- | |
1702 | // | |
1703 | // guard ring resistor chain | |
1704 | // | |
1705 | ||
1706 | TGeoTube *gres1 = new TGeoTube(0.,0.375,125.);// inside ifc | |
1707 | // | |
cc8d387d | 1708 | TGeoVolume *vgres1 = new TGeoVolume("TPC_GRES1",gres1,m14); |
6c0ba48f | 1709 | |
1710 | // | |
1711 | Double_t xrc,yrc; | |
1712 | // | |
1713 | xrc=79.3*TMath::Cos(350.*TMath::DegToRad()); | |
1714 | yrc=79.3*TMath::Sin(350.*TMath::DegToRad()); | |
1715 | // | |
1716 | v9->AddNode(vgres1,1,new TGeoTranslation(xrc,yrc,126.9)); | |
1717 | v9->AddNode(vgres1,2,new TGeoTranslation(xrc,yrc,-126.9)); | |
1718 | // | |
1719 | xrc=79.3*TMath::Cos(190.*TMath::DegToRad()); | |
1720 | yrc=79.3*TMath::Sin(190.*TMath::DegToRad()); | |
1721 | // | |
1722 | v9->AddNode(vgres1,3,new TGeoTranslation(xrc,yrc,126.9)); | |
1723 | v9->AddNode(vgres1,4,new TGeoTranslation(xrc,yrc,-126.9)); | |
1724 | //------------------------------------------------------------------ | |
1725 | TGeoRotation refl("refl",90.,0.,90.,90.,180.,0.); | |
1726 | TGeoRotation rotrod("rotrod"); | |
1727 | // | |
1728 | TGeoRotation *rotpos[2]; | |
1729 | // | |
1730 | TGeoRotation *rotrod1[2]; | |
1731 | ||
1732 | ||
1733 | //v9 - drift gas | |
1734 | ||
1735 | TGeoRotation rot102("rot102"); | |
1736 | rot102.RotateY(-90.); | |
1737 | ||
457e2170 | 1738 | for(Int_t i=0;i<18;i++){ |
1739 | Double_t angle,x,y; | |
1740 | Double_t z,r; | |
1741 | angle=TMath::DegToRad()*20.*(Double_t)i; | |
6c0ba48f | 1742 | //inner rods |
457e2170 | 1743 | r=81.5; |
1744 | x=r * TMath::Cos(angle); | |
1745 | y=r * TMath::Sin(angle); | |
6c0ba48f | 1746 | z = 126.; |
1747 | TGeoRotation *rot12 = new TGeoRotation(); | |
1748 | rot12->RotateZ(-90.0+i*20.); | |
1749 | v9->AddNode(tpcihpl,i+1,new TGeoCombiTrans(x, y, 0., rot12)); | |
78134e48 | 1750 | // |
6c0ba48f | 1751 | if(i==11){//resistor rod inner |
1752 | rotrod.RotateZ(-90.+angle); | |
1753 | rotrod1[0]= new TGeoRotation(); | |
1754 | rotpos[0]= new TGeoRotation(); | |
1755 | // | |
1756 | rotrod1[0]->RotateZ(-90.+angle); | |
1757 | *rotpos[0] = refl*rotrod; //rotation+reflection | |
1758 | v9->AddNode(tpcrrod,1,new TGeoCombiTrans(x,y, z, rotrod1[0])); //A | |
1759 | v9->AddNode(tpcrrod,2,new TGeoCombiTrans(x,y,-z, rotpos[0])); //C | |
78134e48 | 1760 | } |
1761 | else { | |
6c0ba48f | 1762 | v9->AddNode(tpcmrod,i+1,new TGeoTranslation(x,y,z));//shaft |
1763 | v9->AddNode(tpcmrod,i+19,new TGeoCombiTrans(x,y,-z,ref));//muon | |
457e2170 | 1764 | } |
6c0ba48f | 1765 | // outer rods |
457e2170 | 1766 | r=254.25; |
1767 | x=r * TMath::Cos(angle); | |
1768 | y=r * TMath::Sin(angle); | |
6c0ba48f | 1769 | z=126.; |
1770 | // | |
1771 | // outer rod holder + outer left plug | |
1772 | // | |
1773 | TGeoRotation *rot33 = new TGeoRotation(); | |
1774 | rot33->RotateZ(-90+i*20.); | |
1775 | // | |
1776 | v9->AddNode(tpcohpl,i+1,new TGeoCombiTrans(x, y, 0., rot33)); | |
1777 | // | |
1778 | Double_t xxx = 256.297*TMath::Cos((i*20.+10.)*TMath::DegToRad()); | |
1779 | Double_t yyy = 256.297*TMath::Sin((i*20.+10.)*TMath::DegToRad()); | |
1780 | // | |
1781 | TGeoRotation rot101("rot101"); | |
1782 | rot101.RotateZ(90.+i*20.+10.); | |
1783 | TGeoRotation *rot103 = new TGeoRotation("rot103"); | |
1784 | *rot103 = rot101*rot102; | |
1785 | // | |
1786 | TGeoCombiTrans *trh100 = new TGeoCombiTrans(xxx,yyy,0.,rot103); | |
1787 | // | |
1788 | if(i==2) { | |
1789 | //main membrane holder | |
1790 | v9->AddNode(tpcmmh,1,trh100); | |
78134e48 | 1791 | } |
1792 | else{ | |
6c0ba48f | 1793 | // "normal" membrane holder |
1794 | v9->AddNode(tpcomh,i+1,trh100); | |
1795 | } | |
1796 | ||
78134e48 | 1797 | // |
6c0ba48f | 1798 | if(i==3){//resistor rod outer |
1799 | rotrod.RotateZ(90.+angle); | |
1800 | rotrod1[1]= new TGeoRotation(); | |
1801 | rotpos[1]= new TGeoRotation(); | |
1802 | rotrod1[1]->RotateZ(90.+angle); | |
1803 | *rotpos[1] = refl*rotrod;//rotation+reflection | |
1804 | v9->AddNode(tpcrrod,3,new TGeoCombiTrans(x,y, z, rotrod1[1])); //A | |
1805 | v9->AddNode(tpcrrod,4,new TGeoCombiTrans(x,y, -z, rotpos[1])); //C | |
78134e48 | 1806 | } |
6c0ba48f | 1807 | else { |
1808 | v9->AddNode(tpcmrod,i+37,new TGeoTranslation(x,y,z));//shaft | |
1809 | v9->AddNode(tpcmrod,i+55,new TGeoCombiTrans(x,y,-z,ref));//muon | |
1810 | } | |
1811 | if(i==15){ | |
1812 | v9->AddNode(hvrv,1,new TGeoTranslation(x,y,z+0.7)); //hv->A-side only | |
1813 | ||
1814 | ||
1815 | } | |
1816 | } //end of rods positioning | |
1817 | ||
457e2170 | 1818 | |
1819 | TGeoVolume *alice = gGeoManager->GetVolume("ALIC"); | |
1820 | alice->AddNode(v1,1); | |
1821 | ||
1822 | } // end of function | |
1823 | ||
1824 | //_____________________________________________________________________________ | |
1825 | void AliTPCv4::AddAlignableVolumes() const | |
1826 | { | |
1827 | // | |
1828 | // Create entries for alignable volumes associating the symbolic volume | |
1829 | // name with the corresponding volume path. Needs to be syncronized with | |
1830 | // eventual changes in the geometry. | |
1831 | // | |
1832 | SetInnerChambersAlignable(); | |
1833 | SetOuterChambersAlignable(); | |
1834 | } | |
1835 | ||
1836 | //_____________________________________________________________________________ | |
1837 | void AliTPCv4::SetInnerChambersAlignable() const | |
1838 | { | |
1839 | // | |
1840 | Int_t modnum = 0; | |
1841 | TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_"; | |
1842 | TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_"; | |
1843 | TString vpappend = "/TPC_IROC_1"; | |
1844 | TString snstr1="TPC/EndcapA/Sector"; | |
1845 | TString snstr2="TPC/EndcapC/Sector"; | |
1846 | TString snappend="/InnerChamber"; | |
1847 | TString volpath, symname; | |
1848 | ||
1849 | for(Int_t cnt=1; cnt<=18; cnt++){ | |
1850 | volpath = vpstr1; | |
1851 | volpath += cnt; | |
1852 | volpath += vpappend; | |
1853 | symname = snstr1; | |
1854 | symname += cnt; | |
1855 | symname += snappend; | |
1856 | if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data())) | |
1857 | AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data())); | |
1858 | // | |
1859 | TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data()); | |
1860 | const char *path = alignableEntry->GetTitle(); | |
1861 | if (!gGeoManager->cd(path)) | |
1862 | AliFatal(Form("Volume path %s not valid!",path)); | |
1863 | TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix(); | |
1864 | TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,cnt-1); | |
1865 | alignableEntry->SetMatrix(matTtoL); | |
1866 | modnum++; | |
1867 | } | |
1868 | ||
1869 | for(Int_t cnt=1; cnt<=18; cnt++){ | |
1870 | volpath = vpstr2; | |
1871 | volpath += cnt; | |
1872 | volpath += vpappend; | |
1873 | symname = snstr2; | |
1874 | symname += cnt; | |
1875 | symname += snappend; | |
1876 | if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data())) | |
1877 | AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data())); | |
1878 | TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data()); | |
1879 | const char *path = alignableEntry->GetTitle(); | |
1880 | if (!gGeoManager->cd(path)) | |
1881 | AliFatal(Form("Volume path %s not valid!",path)); | |
1882 | TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix(); | |
1883 | TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,18+cnt-1); | |
1884 | alignableEntry->SetMatrix(matTtoL); | |
1885 | modnum++; | |
1886 | } | |
1887 | } | |
1888 | ||
1889 | //_____________________________________________________________________________ | |
1890 | void AliTPCv4::SetOuterChambersAlignable() const | |
1891 | { | |
1892 | // | |
1893 | Int_t modnum = 0; | |
1894 | TString vpstr1 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_1/TPC_SECT_"; | |
1895 | TString vpstr2 = "ALIC_1/TPC_M_1/TPC_Drift_1/TPC_ENDCAP_2/TPC_SECT_"; | |
1896 | TString vpappend = "/TPC_OROC_1"; | |
1897 | TString snstr1="TPC/EndcapA/Sector"; | |
1898 | TString snstr2="TPC/EndcapC/Sector"; | |
1899 | TString snappend="/OuterChamber"; | |
1900 | TString volpath, symname; | |
1901 | ||
1902 | for(Int_t cnt=1; cnt<=18; cnt++){ | |
1903 | volpath = vpstr1; | |
1904 | volpath += cnt; | |
1905 | volpath += vpappend; | |
1906 | symname = snstr1; | |
1907 | symname += cnt; | |
1908 | symname += snappend; | |
1909 | if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data())) | |
1910 | AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data())); | |
1911 | TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data()); | |
1912 | const char *path = alignableEntry->GetTitle(); | |
1913 | if (!gGeoManager->cd(path)) | |
1914 | AliFatal(Form("Volume path %s not valid!",path)); | |
1915 | TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix(); | |
1916 | TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+cnt-1); | |
1917 | alignableEntry->SetMatrix(matTtoL); | |
1918 | modnum++; | |
1919 | } | |
1920 | ||
1921 | for(Int_t cnt=1; cnt<=18; cnt++){ | |
1922 | volpath = vpstr2; | |
1923 | volpath += cnt; | |
1924 | volpath += vpappend; | |
1925 | symname = snstr2; | |
1926 | symname += cnt; | |
1927 | symname += snappend; | |
1928 | if(!gGeoManager->SetAlignableEntry(symname.Data(),volpath.Data())) | |
1929 | AliFatal(Form("Alignable entry %s not created. Volume path %s not valid", symname.Data(),volpath.Data())); | |
1930 | TGeoPNEntry *alignableEntry = gGeoManager->GetAlignableEntry(symname.Data()); | |
1931 | const char *path = alignableEntry->GetTitle(); | |
1932 | if (!gGeoManager->cd(path)) | |
1933 | AliFatal(Form("Volume path %s not valid!",path)); | |
1934 | TGeoHMatrix* globMatrix = gGeoManager->GetCurrentMatrix(); | |
1935 | TGeoHMatrix* matTtoL = fTPCParam->Tracking2LocalMatrix(globMatrix,36+18+cnt-1); | |
1936 | alignableEntry->SetMatrix(matTtoL); | |
1937 | modnum++; | |
1938 | } | |
1939 | } | |
1940 | ||
457e2170 | 1941 | |
1942 | //_____________________________________________________________________________ | |
1943 | void AliTPCv4::CreateMaterials() | |
1944 | { | |
1945 | // | |
1946 | // Define materials for version 2 of the Time Projection Chamber | |
1947 | // | |
1948 | ||
1949 | AliTPC::CreateMaterials(); | |
1950 | } | |
1951 | ||
1952 | //_____________________________________________________________________________ | |
1953 | void AliTPCv4::Init() | |
1954 | { | |
1955 | // | |
1956 | // Initialises version 2 of the TPC after that it has been built | |
1957 | // | |
1958 | ||
8d888a91 | 1959 | //Int_t *idtmed = fIdtmed->GetArray(); |
457e2170 | 1960 | |
1961 | AliTPC::Init(); | |
1962 | ||
1963 | ||
1964 | fIdSens=gMC->VolId("TPC_Strip"); // one strip is always selected... | |
1965 | ||
1966 | fIDrift=gMC->VolId("TPC_Drift"); | |
1967 | fSecOld=-100; // fake number | |
1968 | ||
d9888f70 | 1969 | gMC->SetMaxNStep(-30000); // max. number of steps increased |
457e2170 | 1970 | |
098dfc1a | 1971 | // specific energy loss set in galice.cuts |
457e2170 | 1972 | |
1973 | AliInfo("*** TPC version 4 initialized ***"); | |
1974 | AliInfo(Form("Maximum number of steps = %d",gMC->GetMaxNStep())); | |
1975 | ||
1976 | // | |
1977 | ||
1978 | } | |
1979 | ||
1980 | //_____________________________________________________________________________ | |
1981 | void AliTPCv4::StepManager() | |
1982 | { | |
1983 | // | |
1984 | // Called for every step in the Time Projection Chamber | |
1985 | // | |
1986 | ||
1987 | // | |
1988 | // parameters used for the energy loss calculations | |
1989 | // | |
1990 | const Float_t kprim = 14.35; // number of primary collisions per 1 cm | |
1991 | const Float_t kpoti = 20.77e-9; // first ionization potential for Ne/CO2 | |
1992 | const Float_t kwIon = 35.97e-9; // energy for the ion-electron pair creation | |
1993 | ||
1994 | ||
1995 | const Float_t kbig = 1.e10; | |
1996 | ||
1997 | Int_t id,copy; | |
1998 | Float_t hits[5]; | |
1999 | Int_t vol[2]; | |
2000 | TLorentzVector p; | |
2001 | ||
2002 | vol[1]=0; // preset row number to 0 | |
2003 | // | |
2004 | gMC->SetMaxStep(kbig); | |
2005 | ||
2006 | ||
2007 | ||
2008 | Float_t charge = gMC->TrackCharge(); | |
2009 | ||
2010 | if(TMath::Abs(charge)<=0.) return; // take only charged particles | |
2011 | ||
2012 | // check the sensitive volume | |
2013 | ||
2014 | id = gMC->CurrentVolID(copy); // vol ID and copy number (starts from 1!) | |
2015 | if(id != fIDrift && id != fIdSens) return; // not in the sensitive folume | |
2016 | ||
2017 | gMC->TrackPosition(p); | |
2018 | Double_t r = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
2019 | // | |
2020 | ||
2021 | // | |
2022 | Double_t angle = TMath::ACos(p[0]/r); | |
2023 | angle = (p[1]<0.) ? TMath::TwoPi()-angle : angle; | |
2024 | // | |
2025 | // angular segment, it is not a real sector number... | |
2026 | // | |
2027 | Int_t sector=TMath::Nint((angle-fTPCParam->GetInnerAngleShift())/ | |
2028 | fTPCParam->GetInnerAngle()); | |
2029 | // rotate to segment "0" | |
2030 | Float_t cos,sin; | |
2031 | fTPCParam->AdjustCosSin(sector,cos,sin); | |
2032 | Float_t x1=p[0]*cos + p[1]*sin; | |
2033 | // check if within sector's limits | |
5bd5dbc4 | 2034 | if((x1>=fTPCParam->GetInnerRadiusLow()&&x1<=fTPCParam->GetInnerRadiusUp()) |
2035 | ||(x1>=fTPCParam->GetOuterRadiusLow()&&x1<=fTPCParam->GetOuterRadiusUp())){ | |
457e2170 | 2036 | // calculate real sector number... |
2037 | if (x1>fTPCParam->GetOuterRadiusLow()){ | |
2038 | sector = TMath::Nint((angle-fTPCParam->GetOuterAngleShift())/ | |
2039 | fTPCParam->GetOuterAngle())+fTPCParam->GetNInnerSector(); | |
2040 | if (p[2]<0) sector+=(fTPCParam->GetNOuterSector()>>1); | |
2041 | } | |
2042 | else | |
2043 | if (p[2]<0) sector+=(fTPCParam->GetNInnerSector()>>1); | |
2044 | // | |
2045 | // here I have a sector number | |
2046 | // | |
2047 | ||
2048 | vol[0]=sector; | |
2049 | // check if change of sector | |
2050 | if(sector != fSecOld){ | |
2051 | fSecOld=sector; | |
2052 | // add track reference | |
20527578 | 2053 | AddTrackReference(gAlice->GetMCApp()->GetCurrentTrackNumber()); |
457e2170 | 2054 | } |
2055 | // track is in the sensitive strip | |
2056 | if(id == fIdSens){ | |
2057 | // track is entering the strip | |
2058 | if (gMC->IsTrackEntering()){ | |
2059 | Int_t totrows = fTPCParam->GetNRowLow()+fTPCParam->GetNRowUp(); | |
2060 | vol[1] = (copy<=totrows) ? copy-1 : copy-1-totrows; | |
2061 | // row numbers are autonomous for lower and upper sectors | |
2062 | if(vol[0] > fTPCParam->GetNInnerSector()) { | |
2063 | vol[1] -= fTPCParam->GetNRowLow(); | |
2064 | } | |
2065 | // | |
2066 | if(vol[0]<fTPCParam->GetNInnerSector()&&vol[1] == 0){ | |
2067 | ||
2068 | // lower sector, row 0, because Jouri wants to have this | |
2069 | ||
2070 | gMC->TrackMomentum(p); | |
2071 | hits[0]=p[0]; | |
2072 | hits[1]=p[1]; | |
2073 | hits[2]=p[2]; | |
2074 | hits[3]=0.; // this hit has no energy loss | |
2075 | // Get also the track time for pileup simulation | |
2076 | hits[4]=gMC->TrackTime(); | |
2077 | ||
2078 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); | |
2079 | } | |
2080 | // | |
2081 | ||
2082 | gMC->TrackPosition(p); | |
2083 | hits[0]=p[0]; | |
2084 | hits[1]=p[1]; | |
2085 | hits[2]=p[2]; | |
2086 | hits[3]=0.; // this hit has no energy loss | |
2087 | // Get also the track time for pileup simulation | |
2088 | hits[4]=gMC->TrackTime(); | |
2089 | ||
2090 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); | |
2091 | ||
2092 | } | |
2093 | else return; | |
2094 | } | |
2095 | //----------------------------------------------------------------- | |
2096 | // charged particle is in the sensitive drift volume | |
2097 | //----------------------------------------------------------------- | |
2098 | ||
2099 | if(gMC->TrackStep() > 0){ | |
2100 | ||
2101 | Int_t nel = (Int_t)(((gMC->Edep())-kpoti)/kwIon) + 1; | |
20527578 | 2102 | nel=TMath::Min(nel,30); // 30 electrons corresponds to 1 keV |
457e2170 | 2103 | // |
2104 | gMC->TrackPosition(p); | |
2105 | hits[0]=p[0]; | |
2106 | hits[1]=p[1]; | |
2107 | hits[2]=p[2]; | |
2108 | hits[3]=(Float_t)nel; | |
2109 | ||
2110 | // Add this hit | |
2111 | ||
97d77e7a | 2112 | //if (fHitType&&2){ |
2113 | if(fHitType){ | |
457e2170 | 2114 | gMC->TrackMomentum(p); |
2115 | Float_t momentum = TMath::Sqrt(p[0]*p[0]+p[1]*p[1]); | |
2116 | Float_t precision = (momentum>0.1) ? 0.002 :0.01; | |
2117 | fTrackHits->SetHitPrecision(precision); | |
2118 | } | |
2119 | ||
2120 | // Get also the track time for pileup simulation | |
2121 | hits[4]=gMC->TrackTime(); | |
2122 | ||
2123 | AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(), vol,hits); | |
2124 | ||
2125 | } // step>0 | |
2126 | } //within sector's limits | |
2127 | // Stemax calculation for the next step | |
2128 | if(!gMC->IsTrackAlive()) return; // particle has disappeared | |
2129 | Float_t pp; | |
2130 | TLorentzVector mom; | |
2131 | gMC->TrackMomentum(mom); | |
2132 | Float_t ptot=mom.Rho(); | |
2133 | Float_t betaGamma = ptot/gMC->TrackMass(); | |
2134 | ||
2135 | Int_t pid=gMC->TrackPid(); | |
2136 | if((pid==kElectron || pid==kPositron) && ptot > 0.002) | |
2137 | { | |
2138 | pp = kprim*1.58; // electrons above 20 MeV/c are on the plateau! | |
2139 | } | |
2140 | else | |
2141 | { | |
2142 | ||
2143 | betaGamma = TMath::Max(betaGamma,(Float_t)7.e-3); // protection against too small bg | |
b40afa5e | 2144 | pp=kprim*AliMathBase::BetheBlochAleph(betaGamma); |
457e2170 | 2145 | |
2146 | if(TMath::Abs(charge) > 1.) pp *= (charge*charge); | |
2147 | } | |
2148 | ||
2149 | Double_t rnd = gMC->GetRandom()->Rndm(); | |
2150 | ||
2151 | gMC->SetMaxStep(-TMath::Log(rnd)/pp); | |
2152 | ||
2153 | ||
2154 | } | |
2155 |