Line data Source code
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 : /* $Id$ */
17 :
18 : /////////////////////////////////////////////////////////////////////
19 : // //
20 : // T0 ( T-zero) detector version 0 //
21 : //
22 : //Begin Html
23 : /*
24 : <img src="gif/AliT0v0Class.gif">
25 : */
26 : //End Html
27 : // //
28 : // //
29 : //////////////////////////////////////////////////////////////////////
30 :
31 : #include <Riostream.h>
32 : #include <stdlib.h>
33 :
34 : #include <TGeoGlobalMagField.h>
35 : #include <TLorentzVector.h>
36 : #include <TMath.h>
37 : #include <TVirtualMC.h>
38 :
39 : #include "AliLog.h"
40 : #include "AliMagF.h"
41 : #include "AliRun.h"
42 : #include "AliT0hit.h"
43 : #include "AliT0v0.h"
44 : #include "AliLog.h"
45 :
46 12 : ClassImp(AliT0v0)
47 :
48 : //--------------------------------------------------------------------
49 : AliT0v0::AliT0v0(const char *name, const char *title):
50 0 : AliT0(name,title),
51 0 : fIdSens1(0)
52 0 : {
53 : //
54 : // Standart constructor for T0 Detector version 0
55 : //
56 : // fIdSens1=0;
57 : // setBufferSize(128000);
58 0 : }
59 : //-------------------------------------------------------------------------
60 : void AliT0v0::CreateGeometry()
61 : {
62 : //
63 : // Create the geometry of T0 Detector version 0
64 : // Full geometry with support structure according T0 prototype
65 : //
66 : // begin Html
67 : /*
68 : <img src="gif/AliT0v0.gif">
69 : */
70 : //
71 :
72 :
73 :
74 0 : Int_t *idtmed = fIdtmed->GetArray();
75 :
76 : Int_t is;
77 0 : Int_t idrotm[999];
78 : Float_t x,y,z;
79 0 : Float_t pstartR[18]={0., 360., 5.,
80 : -76.5+0.00+69.7, 4.25, 10.,
81 : -76.5+6.05+69.7, 4.5, 10.,
82 : -76.5+8.05+69.7, 4.5, 10.,
83 : -76.5+8.05+69.7, 5.1, 10.,
84 : -62.9+0.00+69.7, 5.1, 10.};
85 :
86 0 : Float_t pstart[3]={4.3, 12.,6.8};
87 0 : Float_t pinstart[3]={0.,1.6,6.5};
88 0 : Float_t ppmt[3]={0.,1.5,3.5};
89 :
90 0 : Float_t preg[3]={0.,0.875,0.005}; //dobavil bogdanov
91 :
92 0 : Float_t pdivider[3]={0.,1.2,1.75};
93 0 : Float_t pdiv2[3]={0.,1.2,1.25};
94 0 : Float_t pdiv1[3]={0.6,1.2,0.5};
95 : // Float_t ptop[3]={0.,1.3,1.5};
96 0 : Float_t ptop[3]={0.,1.0,1.5};
97 0 : Float_t pbot[3]={0.6,1.2,0.1};
98 0 : Float_t pglass[3]={1.2,1.3,2.};
99 0 : Float_t pcer[3]={0.9,1.1,0.09};
100 0 : Float_t psteel[3]={0.9,1.1,0.01};
101 0 : Float_t ppins[3]={0.6,1.2,0.014};
102 0 : Float_t phole[3]={0.6,1.2,0.015};
103 0 : Float_t pknob[3]={0.5,0.6,0.4};
104 0 : Float_t pknob_vac[3]={0.,0.5,0.4};
105 0 : Float_t pknob_bot[3]={0.,0.6,0.05};
106 0 : Float_t pribber[3] = {0.,1.2,2.413/2.};
107 0 : Float_t presist[3] = {0.,1.2,0.087/2.};
108 0 : Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
109 0 : Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi C
110 0 : Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki C
111 0 : Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu C
112 0 : Float_t psupport6[3] = {0,1.5,0.05}; //kryshechka stakanchika Al
113 0 : Float_t psupport7[3] = {1.5,1.6,0.6}; //kolechko snaruzhu stakanchika Al
114 : // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
115 0 : AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
116 0 : Float_t ppcon[70];
117 0 : ppcon[0] = 0;
118 0 : ppcon[1] = 360;
119 0 : ppcon[2] = 13;
120 : // 1:
121 0 : ppcon[3] = 14.1/2;
122 0 : ppcon[4] = 4.4;
123 0 : ppcon[5] = 4.5;
124 : // 2
125 0 : ppcon[6] = ppcon[3]+1.;
126 0 : ppcon[7] = 4.4;
127 0 : ppcon[8] = 4.5;
128 : // 3
129 0 : ppcon[9] = ppcon[6];
130 0 : ppcon[10] = 4.4;
131 0 : ppcon[11] = 5.1;
132 :
133 : // 4
134 :
135 0 : ppcon[12] = ppcon[9]+0.1;
136 0 : ppcon[13] = 4.4;
137 0 : ppcon[14] = 5.1;
138 : // 5
139 :
140 0 : ppcon[15] = ppcon[12];
141 0 : ppcon[16] = 4.9;
142 0 : ppcon[17] = 5.1;
143 :
144 : // 6
145 0 : ppcon[18] = ppcon[15]+7.05;
146 0 : ppcon[19] = 4.9;
147 0 : ppcon[20] = 5.1;
148 :
149 : // 7
150 0 : ppcon[21] = ppcon[18];
151 0 : ppcon[22] = 4.9;
152 0 : ppcon[23] = 5.1;
153 :
154 : /// 8
155 0 : ppcon[24] = ppcon[21]+0.01;
156 0 : ppcon[25] = 3.15;
157 0 : ppcon[26] = 3.25;
158 :
159 : /// 9
160 0 : ppcon[27] = ppcon[24];
161 0 : ppcon[28] = 3.15;
162 0 : ppcon[29] = 3.25;
163 :
164 : // 10
165 0 : ppcon[30] = ppcon[27]+4.5;
166 0 : ppcon[31] = 3.15;
167 0 : ppcon[32] = 3.25;
168 :
169 : // 11
170 0 : ppcon[33] = ppcon[30];
171 0 : ppcon[34] = 3.15;
172 0 : ppcon[35] = 3.25;
173 :
174 : // 12
175 0 : ppcon[36] = ppcon[33];
176 0 : ppcon[37] = 3.15;
177 0 : ppcon[38] = 7.6;
178 :
179 : // 13
180 0 : ppcon[39] = ppcon[33]+0.4;
181 0 : ppcon[40] = 3.15;
182 0 : ppcon[41] = 7.6;
183 :
184 : // 14
185 : // ppcon[39] = ppcon[36];
186 : // ppcon[40] = 3.15;
187 : // ppcon[41] = 7.6;
188 :
189 0 : TVirtualMC::GetMC()->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
190 : z=-69.7;//-14.1/2;
191 0 : TVirtualMC::GetMC()->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
192 :
193 :
194 : Float_t zdetRight=69.7,zdetLeft=350;
195 : //-------------------------------------------------------------------
196 : // T0 volume
197 : //-------------------------------------------------------------------
198 :
199 :
200 0 : TVirtualMC::GetMC()->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
201 0 : TVirtualMC::GetMC()->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
202 0 : TVirtualMC::GetMC()->Gspos("0STR",1,"ALIC",0.,0.,-zdetRight-pstart[2],idrotm[901],"ONLY");
203 0 : TVirtualMC::GetMC()->Gspos("0STL",1,"ALIC",0.,0.,zdetLeft+pstart[2],0,"ONLY");
204 :
205 : //T0 interior
206 0 : TVirtualMC::GetMC()->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
207 0 : TVirtualMC::GetMC()->Gsvolu("0PMT","TUBE",idtmed[kOpAir],ppmt,3);
208 0 : TVirtualMC::GetMC()->Gsvolu("0DIV","TUBE",idtmed[kVac],pdivider,3);
209 0 : TVirtualMC::GetMC()->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
210 0 : TVirtualMC::GetMC()->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
211 0 : TVirtualMC::GetMC()->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
212 0 : TVirtualMC::GetMC()->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
213 : // TVirtualMC::GetMC()->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
214 0 : TVirtualMC::GetMC()->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
215 0 : TVirtualMC::GetMC()->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
216 0 : TVirtualMC::GetMC()->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
217 :
218 : // first ring: 12 units of Scintillator+PMT+divider
219 0 : Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetRight);
220 0 : Float_t angle = 2 * TMath::Pi() / 12;
221 0 : Float_t phi[3];
222 :
223 0 : for (is=0; is<12; is++)
224 : {
225 :
226 0 : x = 6.5 * TMath::Sin(is * angle);
227 0 : y = 6.5 * TMath::Cos(is * angle);
228 :
229 0 : phi[0] = -30 * is;
230 0 : phi[1] = 90 - is * 30;
231 0 : phi[2] = 90 - is * 30;
232 0 : for (Int_t j = 0; j < 3; j++)
233 0 : if (phi[j] < 0) phi[j] += 360;
234 :
235 0 : AliMatrix (idrotm[902 + is], 90., phi[0],
236 0 : 90. + theta, phi[1],
237 0 : theta, phi[2]);
238 0 : z=-pstart[2]+pinstart[2]+0.2;
239 0 : TVirtualMC::GetMC()->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
240 0 : TVirtualMC::GetMC()->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
241 :
242 0 : x = 9 * TMath::Sin(angle/2+is * angle);
243 0 : y = 9 * TMath::Cos(angle/2+is * angle);
244 :
245 0 : TVirtualMC::GetMC()->Gspos ("0INS", is + 25, "0STL", x, y, z, 0, "ONLY");
246 :
247 : }
248 :
249 :
250 : x=0;
251 : y=0;
252 0 : z=-pinstart[2]+ppmt[2]+2.*psupport6[2]+0.1;
253 0 : TVirtualMC::GetMC()->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
254 0 : z=z+pdivider[2]+ppmt[2];
255 0 : TVirtualMC::GetMC()->Gspos("0DIV",1,"0INS",x,y,z,0,"ONLY");
256 :
257 : // PMT
258 :
259 : // Entry window (glass)
260 0 : TVirtualMC::GetMC()->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
261 : // TVirtualMC::GetMC()->Gsvolu("0TOP","TUBE",idtmed[12],ptop,3); //lucite
262 0 : z=-ppmt[2]+ptop[2];
263 0 : TVirtualMC::GetMC()->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
264 :
265 : //Fotokatod
266 :
267 0 : TVirtualMC::GetMC()->Gsvolu ("0REG", "TUBE", idtmed[kOpGlass], preg, 3); //photocathode dobavil bogdanov(AliT0v2)
268 0 : z = -ppmt[2] + 2 * ptop[2] + preg[2]; //photocathode dobavil bogdanov
269 0 : TVirtualMC::GetMC()->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); //photocathode dobavil bogdanov(AliT0v2)
270 :
271 : // Bottom glass
272 0 : TVirtualMC::GetMC()->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
273 0 : z=ppmt[2]-pbot[2];
274 0 : AliDebugClass(1,Form(" Z bottom %f\n",z));
275 0 : TVirtualMC::GetMC()->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
276 : // Side cylinder glass
277 0 : TVirtualMC::GetMC()->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
278 0 : z=ppmt[2]-pglass[2];
279 0 : TVirtualMC::GetMC()->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
280 : //PMT electrodes support structure
281 0 : TVirtualMC::GetMC()->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
282 0 : TVirtualMC::GetMC()->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
283 0 : z=-ppmt[2]+2*ptop[2]+0.3;;
284 0 : for (is=1; is<=15; is++)
285 : {
286 0 : z=z+psteel[2]+pcer[2];
287 0 : TVirtualMC::GetMC()->Gspos("0CER",is,"0PMT",0,0,z,0,"ONLY");
288 0 : z=z+psteel[2]+pcer[2];
289 0 : TVirtualMC::GetMC()->Gspos("0STE",is,"0PMT",0,0,z,0,"ONLY");
290 : }
291 :
292 : // Divider
293 : // Knob at the bottom of PMT baloon
294 :
295 0 : TVirtualMC::GetMC()->Gsvolu("0NB","TUBE",idtmed[6],pknob,3);
296 0 : z=-pdivider[2]+pknob[2];
297 0 : TVirtualMC::GetMC()->Gspos("0NB",1,"0DIV",0,0,z,0,"ONLY");
298 0 : TVirtualMC::GetMC()->Gsvolu("0KB","TUBE",idtmed[kGlass],pknob_bot,3);
299 0 : z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
300 0 : TVirtualMC::GetMC()->Gspos("0KB",1,"0DIV ",0,0,z,0,"ONLY");
301 0 : TVirtualMC::GetMC()->Gsvolu("0VAC","TUBE",idtmed[kVac],pknob_vac,3);
302 0 : z=-pdivider[2]+pknob_vac[2];
303 0 : TVirtualMC::GetMC()->Gspos("0VAC",1,"0DIV",0,0,z,0,"ONLY");
304 : //Steel pins + pin holes
305 0 : TVirtualMC::GetMC()->Gsvolu("0PIN","TUBE",idtmed[kSteel],ppins,3);
306 0 : z=-pdivider[2]+ppins[2];
307 0 : TVirtualMC::GetMC()->Gspos("0PIN",1,"0DIV",0,0,z,0,"ONLY");
308 0 : TVirtualMC::GetMC()->Gsvolu("0HOL","TUBE",idtmed[kBrass],phole,3);
309 0 : z=-pdivider[2]+2*ppins[2]+phole[2];
310 0 : TVirtualMC::GetMC()->Gspos("0HOL",1,"0DIV",0,0,z,0,"ONLY");
311 :
312 : //Socket
313 0 : TVirtualMC::GetMC()->Gsvolu("0V1","TUBE",idtmed[kCer],pdiv1,3);
314 0 : z=-pdivider[2]+pdiv1[2];
315 0 : TVirtualMC::GetMC()->Gspos("0V1",1,"0DIV",0,0,z,0,"ONLY");
316 : //Resistors
317 0 : TVirtualMC::GetMC()->Gsvolu("0V2","TUBE",idtmed[kAir],pdiv2,3);
318 0 : z=pdivider[2]-pdiv2[2];
319 0 : TVirtualMC::GetMC()->Gspos("0V2",1,"0DIV",0,0,z,0,"ONLY");
320 0 : TVirtualMC::GetMC()->Gsvolu("0RS","TUBE",idtmed[kCer],presist,3);
321 0 : z=-pdiv2[2]+presist[2];
322 0 : TVirtualMC::GetMC()->Gspos("0RS",1,"0V2",0,0,z,0,"ONLY");
323 0 : TVirtualMC::GetMC()->Gsvolu("0RB","TUBE",idtmed[kRibber],pribber,3);
324 0 : z=pdiv2[2]-pribber[2];
325 0 : TVirtualMC::GetMC()->Gspos("0RB",1,"0V2",0,0,z,0,"ONLY");
326 :
327 :
328 : //Support left side
329 : /*
330 : z=-pstart[2]+psupport1[2];
331 : TVirtualMC::GetMC()->Gspos("0SU1",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
332 : TVirtualMC::GetMC()->Gspos("0SU2",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh vnutri
333 : z=-pstart[2]+psupport3[2];
334 : TVirtualMC::GetMC()->Gspos("0SU3",2,"0STL",0,0,z,0,"ONLY"); //peredniaia kryshka
335 : z=-pstart[2]+2.*psupport1[2];
336 : TVirtualMC::GetMC()->Gspos("0SU4",2,"0STL",0,0,z,0,"MANY"); //zadnaiai kryshka
337 : */
338 0 : z=-pstart[2]+psupport1[2]+0.1;
339 0 : TVirtualMC::GetMC()->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
340 0 : TVirtualMC::GetMC()->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
341 0 : z=-pstart[2]+psupport3[2]+0.1;
342 0 : TVirtualMC::GetMC()->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
343 0 : z=-pstart[2]+2.*psupport1[2]+0.1;
344 0 : TVirtualMC::GetMC()->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
345 0 : TVirtualMC::GetMC()->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
346 0 : z=-pinstart[2]+psupport6[2];
347 0 : TVirtualMC::GetMC()->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
348 :
349 0 : z=pinstart[2]-psupport7[2];
350 0 : TVirtualMC::GetMC()->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
351 :
352 :
353 0 : Float_t par[3];
354 0 : par[0]=4.4;
355 0 : par[1]=4.5;
356 0 : par[2]=0.5;
357 0 : TVirtualMC::GetMC()->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
358 0 : z=ppcon[3]+par[2];
359 0 : TVirtualMC::GetMC()->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
360 0 : z += par[2];
361 0 : par[0]=4.4;
362 0 : par[1]=5.1;
363 0 : par[2]=0.05;
364 0 : TVirtualMC::GetMC()->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
365 0 : z += par[2];
366 0 : TVirtualMC::GetMC()->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
367 0 : z=z+par[2];
368 0 : par[0]=4.9;
369 0 : par[1]=5.0;
370 0 : par[2]=6.9/2;
371 0 : TVirtualMC::GetMC()->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
372 0 : z += par[2];
373 0 : TVirtualMC::GetMC()->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
374 0 : z += par[2];
375 : /*
376 : Float_t parC[5];
377 : parC[0]=0.25;
378 : parC[1]=5.1;
379 : parC[2]=5.2;
380 : parC[3]=5.5;
381 : parC[4]=5.6;
382 : TVirtualMC::GetMC()->Gsvolu("0SC3","CONE",idtmed[kC],parC,5);
383 : z += parC[0];
384 : TVirtualMC::GetMC()->Gspos("0SC3",1,"0SUP",0,0,z,0,"ONLY");
385 : z += parC[0];
386 : par[0]=5.5;
387 : par[1]=5.6;
388 : par[2]=1.2/2;
389 : TVirtualMC::GetMC()->Gsvolu("0SC4","TUBE",idtmed[kC],par,3);
390 : z += par[2];
391 : TVirtualMC::GetMC()->Gspos("0SC4",1,"0SUP",0,0,z,0,"ONLY");
392 : par[0]=5.1;
393 : par[1]=5.5;
394 : par[2]=1.2/2;
395 : TVirtualMC::GetMC()->Gsvolu("0SA0","TUBE",idtmed[kAl],par,3);
396 : TVirtualMC::GetMC()->Gspos("0SA0",1,"0SUP",0,0,z,0,"ONLY");
397 : //gvozdi dlia skruchivaniia Al i C parts
398 : par[0]=5.75;
399 : par[1]=5.78;
400 : TVirtualMC::GetMC()->Gsvolu("0SN1","TUBE",idtmed[kSteel],par,3);
401 : TVirtualMC::GetMC()->Gspos("0SN1",1,"0SUP",0,0,z,0,"ONLY");
402 : z += par[2];
403 : */
404 0 : par[0]=3.15;
405 0 : par[1]=4.9;
406 0 : par[2]=0.1/2;
407 0 : TVirtualMC::GetMC()->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
408 :
409 0 : z += par[2];
410 0 : TVirtualMC::GetMC()->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
411 0 : z=z+par[2];
412 0 : par[0]=3.15;
413 0 : par[1]=3.16;
414 0 : par[2]=4.5/2;
415 0 : TVirtualMC::GetMC()->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
416 0 : z += par[2];
417 0 : TVirtualMC::GetMC()->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
418 0 : z=z+par[2];
419 0 : par[0]=3.16; // eta chast' prikruchena k absorberu
420 0 : par[1]=7.5;
421 0 : par[2]=0.2;
422 0 : TVirtualMC::GetMC()->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
423 0 : z += par[2];
424 0 : TVirtualMC::GetMC()->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
425 0 : par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
426 0 : par[1]=7.5;
427 0 : par[2]=0.01;
428 0 : TVirtualMC::GetMC()->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
429 0 : TVirtualMC::GetMC()->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
430 :
431 :
432 0 : }
433 :
434 : //------------------------------------------------------------------------
435 : void AliT0v0::CreateMaterials()
436 : {
437 0 : Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
438 0 : Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
439 0 : Double_t a,z,d,radl,absl;
440 0 : TArrayD par;
441 :
442 : // Scintillator CH
443 0 : Float_t ascin[2]={1.01,12.01};
444 0 : Float_t zscin[2]={1,6};
445 0 : Float_t wscin[2]={1,1};
446 : Float_t denscin=1.03;
447 : //Lucite C(CH3)CO2CH3
448 0 : Float_t alucite[3]={1.01,12.01,15.999};
449 0 : Float_t zlucite[3]={1,6,8};
450 0 : Float_t wlucite[3]={8,5,2};
451 : Float_t denlucite=1.16;
452 : // PMT glass SiO2
453 0 : Float_t aglass[2]={28.0855,15.9994};
454 0 : Float_t zglass[2]={14.,8.};
455 0 : Float_t wglass[2]={1.,2.};
456 : Float_t dglass=2.65;
457 : // Ceramic 97.2% Al2O3 , 2.8% SiO2
458 0 : Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
459 0 : Float_t aal2o3[2] = { 26.981539,15.9994 };
460 0 : Float_t zal2o3[2] = { 13.,8. };
461 0 : Float_t wal2o3[2] = { 2.,3. };
462 : Float_t denscer = 3.6;
463 :
464 : // Brass 80% Cu, 20% Zn
465 0 : Float_t abrass[2] = {63.546,65.39};
466 0 : Float_t zbrass[2] = {29,30};
467 0 : Float_t wbrass[2] = {0.8,0.2};
468 : Float_t denbrass=8.96;
469 :
470 : //Ribber C6H12S
471 0 : Float_t aribber[3] = {12.,1.,32.};
472 0 : Float_t zribber[3] = {6.,1.,16.};
473 0 : Float_t wribber[3] = {6.,12.,1.};
474 : Float_t denribber=0.8;
475 : // Support inside
476 0 : Float_t asupport[2] = {12.,1.};
477 0 : Float_t zsupport[2] = {6.,1.};
478 0 : Float_t wsupport[2] = {1.,1.};
479 : Float_t densupport=0.1;
480 : // AIR
481 0 : Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
482 0 : Float_t zAir[4]={6.,7.,8.,18.};
483 0 : Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
484 : Float_t dAir = 1.20479E-3;
485 :
486 : //*** Definition Of avaible T0 materials ***
487 0 : AliMaterial(0, "T0 Steel$", 55.850,26.,7.87,1.76,999);
488 0 : AliMaterial(1, "T0 Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
489 0 : AliMixture(2, "T0 Air$", aAir, zAir, dAir,4,wAir);
490 :
491 0 : AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
492 0 : AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
493 :
494 0 : AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
495 0 : AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
496 0 : TString namate;
497 0 : TVirtualMC::GetMC()->GetMaterial((*fIdmate)[3], namate, a, z, d, radl, absl, par);
498 0 : acer[0]=a;
499 0 : zcer[0]=z;
500 0 : TVirtualMC::GetMC()->GetMaterial((*fIdmate)[4], namate, a, z, d, radl, absl, par);
501 0 : acer[1]=a;
502 0 : zcer[1]=z;
503 :
504 0 : AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
505 0 : AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
506 0 : AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
507 :
508 0 : AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
509 0 : AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
510 0 : AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
511 :
512 :
513 0 : AliMedium(1, "T0 Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
514 0 : AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
515 0 : AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
516 0 : AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
517 0 : AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
518 0 : AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
519 0 : AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
520 0 : AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
521 0 : AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
522 0 : AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
523 0 : AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
524 0 : AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
525 :
526 0 : AliDebugClass(1,": ++++++++++++++Medium set++++++++++");
527 :
528 0 : }
529 :
530 : //-------------------------------------------------------------------
531 : void AliT0v0::Init()
532 : {
533 : // Initialises version 0 of the Forward Multiplicity Detector
534 : //
535 : //Int_t *idtmed = gAlice->Idtmed();
536 0 : AliT0::Init();
537 0 : fIdSens1=TVirtualMC::GetMC()->VolId("0TOP");
538 0 : AliDebug(1,Form("%s: *** T0 version 0 initialized ***\n",ClassName()));
539 :
540 0 : }
541 :
542 : //-------------------------------------------------------------------
543 :
544 : void AliT0v0::StepManager()
545 : {
546 : //
547 : // Called for every step in the T0 Detector
548 : // See AliT0v1
549 :
550 0 : }
551 : //---------------------------------------------------------------------
552 :
553 :
554 :
555 :
556 :
557 :
558 :
559 :
560 :
561 :
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