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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
88cb7938 16/* $Id$ */
4c039060 17
6ca40650 18/////////////////////////////////////////////////////////////////////
19// //
20// START ( T-zero) detector version 0 //
21//
22//Begin Html
23/*
24<img src="gif/AliSTARTv0Class.gif">
25*/
26//End Html
27// //
28// //
29//////////////////////////////////////////////////////////////////////
30
88cb7938 31#include <Riostream.h>
32#include <stdlib.h>
33
6ca40650 34#include <TGeometry.h>
0cc62300 35#include <TLorentzVector.h>
88cb7938 36#include <TMath.h>
37#include <TNode.h>
38#include <TTUBE.h>
39#include <TVirtualMC.h>
6ca40650 40
e4da63c2 41#include "AliLog.h"
94de3818 42#include "AliMagF.h"
88cb7938 43#include "AliRun.h"
971579f6 44#include "AliSTARThit.h"
88cb7938 45#include "AliSTARTv0.h"
6ca40650 46
47ClassImp(AliSTARTv0)
48
49//--------------------------------------------------------------------
50AliSTARTv0::AliSTARTv0(const char *name, const char *title):
51 AliSTART(name,title)
52{
53 //
54 // Standart constructor for START Detector version 0
55 //
56 fIdSens1=0;
57// setBufferSize(128000);
58}
59//-------------------------------------------------------------------------
60void AliSTARTv0::CreateGeometry()
61{
62 //
63 // Create the geometry of START Detector version 0
2ad713c4 64 // Full geometry with support structure according START prototype
6ca40650 65 //
66 // begin Html
67 /*
68 <img src="gif/AliSTARTv0.gif">
69 */
70 //
71
72
a94466c5 73
2ad713c4 74 Int_t *idtmed = fIdtmed->GetArray();
75
6ca40650 76 Int_t is;
77 Int_t idrotm[999];
78 Float_t x,y,z;
e4da63c2 79 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 Float_t pstart[3]={4.3, 12.,6.8};
2ad713c4 87 Float_t pinstart[3]={0.,1.6,6.5};
e4da63c2 88 Float_t ppmt[3]={0.,1.5,3.5};
89
90 Float_t preg[3]={0.,0.875,0.005}; //dobavil bogdanov
91
6ca40650 92 Float_t pdivider[3]={0.,1.2,1.75};
93 Float_t pdiv2[3]={0.,1.2,1.25};
94 Float_t pdiv1[3]={0.6,1.2,0.5};
e4da63c2 95 // Float_t ptop[3]={0.,1.3,1.5};
96 Float_t ptop[3]={0.,1.0,1.5};
6ca40650 97 Float_t pbot[3]={0.6,1.2,0.1};
98 Float_t pglass[3]={1.2,1.3,2.};
99 Float_t pcer[3]={0.9,1.1,0.09};
100 Float_t psteel[3]={0.9,1.1,0.01};
101 Float_t ppins[3]={0.6,1.2,0.014};
102 Float_t phole[3]={0.6,1.2,0.015};
103 Float_t pknob[3]={0.5,0.6,0.4};
104 Float_t pknob_vac[3]={0.,0.5,0.4};
105 Float_t pknob_bot[3]={0.,0.6,0.05};
106 Float_t pribber[3] = {0.,1.2,2.413/2.};
107 Float_t presist[3] = {0.,1.2,0.087/2.};
e4da63c2 108 Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
2ad713c4 109 Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi C
e4da63c2 110 Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki C
111 Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu C
69b30e0f 112 Float_t psupport6[3] = {0,1.5,0.05}; //kryshechka stakanchika Al
2ad713c4 113 Float_t psupport7[3] = {1.5,1.6,0.6}; //kolechko snaruzhu stakanchika Al
114 // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
e4da63c2 115 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
2ad713c4 116 Float_t ppcon[70];
117 ppcon[0] = 0;
118 ppcon[1] = 360;
e4da63c2 119 ppcon[2] = 13;
2ad713c4 120// 1:
121 ppcon[3] = 14.1/2;
122 ppcon[4] = 4.4;
123 ppcon[5] = 4.5;
124// 2
125 ppcon[6] = ppcon[3]+1.;
126 ppcon[7] = 4.4;
127 ppcon[8] = 4.5;
128// 3
129 ppcon[9] = ppcon[6];
130 ppcon[10] = 4.4;
e4da63c2 131 ppcon[11] = 5.1;
2ad713c4 132
133// 4
134
135 ppcon[12] = ppcon[9]+0.1;
136 ppcon[13] = 4.4;
e4da63c2 137 ppcon[14] = 5.1;
2ad713c4 138// 5
139
140 ppcon[15] = ppcon[12];
e4da63c2 141 ppcon[16] = 4.9;
142 ppcon[17] = 5.1;
2ad713c4 143
144// 6
e4da63c2 145 ppcon[18] = ppcon[15]+7.05;
146 ppcon[19] = 4.9;
147 ppcon[20] = 5.1;
2ad713c4 148
149// 7
150 ppcon[21] = ppcon[18];
e4da63c2 151 ppcon[22] = 4.9;
152 ppcon[23] = 5.1;
2ad713c4 153
e4da63c2 154/// 8
155 ppcon[24] = ppcon[21]+0.01;
156 ppcon[25] = 3.15;
157 ppcon[26] = 3.25;
158
159/// 9
160 ppcon[27] = ppcon[24];
161 ppcon[28] = 3.15;
162 ppcon[29] = 3.25;
163
2ad713c4 164// 10
e4da63c2 165 ppcon[30] = ppcon[27]+4.5;
2ad713c4 166 ppcon[31] = 3.15;
e4da63c2 167 ppcon[32] = 3.25;
2ad713c4 168
169// 11
e4da63c2 170 ppcon[33] = ppcon[30];
2ad713c4 171 ppcon[34] = 3.15;
e4da63c2 172 ppcon[35] = 3.25;
173
2ad713c4 174// 12
e4da63c2 175 ppcon[36] = ppcon[33];
2ad713c4 176 ppcon[37] = 3.15;
e4da63c2 177 ppcon[38] = 7.6;
178
2ad713c4 179// 13
e4da63c2 180 ppcon[39] = ppcon[33]+0.4;
2ad713c4 181 ppcon[40] = 3.15;
e4da63c2 182 ppcon[41] = 7.6;
183
2ad713c4 184// 14
e4da63c2 185// ppcon[39] = ppcon[36];
186// ppcon[40] = 3.15;
187// ppcon[41] = 7.6;
6ca40650 188
e4da63c2 189 gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
190 z=-69.7;//-14.1/2;
191 gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
192
193
194 Float_t zdetRight=69.7,zdetLeft=350;
6ca40650 195 //-------------------------------------------------------------------
196 // START volume
197 //-------------------------------------------------------------------
971579f6 198
a94466c5 199
e4da63c2 200 gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
2ad713c4 201 gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
2ad713c4 202 gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetRight-pstart[2],idrotm[901],"ONLY");
203 gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetLeft+pstart[2],0,"ONLY");
6ca40650 204
205//START interior
2ad713c4 206 gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
e4da63c2 207 gMC->Gsvolu("0PMT","TUBE",idtmed[kOpAir],ppmt,3);
2ad713c4 208 gMC->Gsvolu("0DIV","TUBE",idtmed[kVac],pdivider,3);
209 gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
210 gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
211 gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
212 gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
e4da63c2 213 // gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
2ad713c4 214 gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
215 gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
216 gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
217
ef51244a 218// first ring: 12 units of Scintillator+PMT+divider
2ad713c4 219 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetRight);
e4da63c2 220 Float_t angle = 2 * TMath::Pi() / 12;
2ad713c4 221 Float_t phi[3];
e4da63c2 222
2ad713c4 223 for (is=0; is<12; is++)
971579f6 224 {
a94466c5 225
e4da63c2 226 x = 6.5 * TMath::Sin(is * angle);
227 y = 6.5 * TMath::Cos(is * angle);
2ad713c4 228
e4da63c2 229 phi[0] = -30 * is;
230 phi[1] = 90 - is * 30;
231 phi[2] = 90 - is * 30;
232 for (Int_t j = 0; j < 3; j++)
233 if (phi[j] < 0) phi[j] += 360;
2ad713c4 234
e4da63c2 235 AliMatrix (idrotm[902 + is], 90., phi[0],
236 90. + theta, phi[1],
237 theta, phi[2]);
2ad713c4 238 z=-pstart[2]+pinstart[2]+0.2;
e4da63c2 239 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
240 gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
241
242 x = 9 * TMath::Sin(angle/2+is * angle);
243 y = 9 * TMath::Cos(angle/2+is * angle);
a94466c5 244
e4da63c2 245 gMC->Gspos ("0INS", is + 25, "0STL", x, y, z, 0, "ONLY");
246
247 }
2ad713c4 248
6ca40650 249
e4da63c2 250 x=0;
251 y=0;
252 z=-pinstart[2]+ppmt[2]+2.*psupport6[2]+0.1;
253 gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
254 z=z+pdivider[2]+ppmt[2];
255 gMC->Gspos("0DIV",1,"0INS",x,y,z,0,"ONLY");
256
257 // PMT
258
259 // Entry window (glass)
260 gMC->Gsvolu("0TOP","TUBE",idtmed[kOpGlass],ptop,3); //glass
261 // gMC->Gsvolu("0TOP","TUBE",idtmed[12],ptop,3); //lucite
262 z=-ppmt[2]+ptop[2];
263 gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
264
265 //Fotokatod
266
267 gMC->Gsvolu ("0REG", "TUBE", idtmed[kOpGlass], preg, 3); //photocathode dobavil bogdanov(AliSTARTv2)
268 z = -ppmt[2] + 2 * ptop[2] + preg[2]; //photocathode dobavil bogdanov
269 gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY"); //photocathode dobavil bogdanov(AliSTARTv2)
270
271 // Bottom glass
272 gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
273 z=ppmt[2]-pbot[2];
274 if(fDebug) printf("%s: Z bottom %f\n",ClassName(),z);
275 gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
276 // Side cylinder glass
277 gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
278 z=ppmt[2]-pglass[2];
279 gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
280 //PMT electrodes support structure
281 gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
282 gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
283 z=-ppmt[2]+2*ptop[2]+0.3;;
284 for (is=1; is<=15; is++)
285 {
286 z=z+psteel[2]+pcer[2];
287 gMC->Gspos("0CER",is,"0PMT",0,0,z,0,"ONLY");
288 z=z+psteel[2]+pcer[2];
289 gMC->Gspos("0STE",is,"0PMT",0,0,z,0,"ONLY");
290 }
291
292 // Divider
293 // Knob at the bottom of PMT baloon
294
295 gMC->Gsvolu("0NB","TUBE",idtmed[6],pknob,3);
296 z=-pdivider[2]+pknob[2];
297 gMC->Gspos("0NB",1,"0DIV",0,0,z,0,"ONLY");
298 gMC->Gsvolu("0KB","TUBE",idtmed[kGlass],pknob_bot,3);
299 z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
300 gMC->Gspos("0KB",1,"0DIV ",0,0,z,0,"ONLY");
301 gMC->Gsvolu("0VAC","TUBE",idtmed[kVac],pknob_vac,3);
302 z=-pdivider[2]+pknob_vac[2];
303 gMC->Gspos("0VAC",1,"0DIV",0,0,z,0,"ONLY");
304 //Steel pins + pin holes
305 gMC->Gsvolu("0PIN","TUBE",idtmed[kSteel],ppins,3);
306 z=-pdivider[2]+ppins[2];
307 gMC->Gspos("0PIN",1,"0DIV",0,0,z,0,"ONLY");
308 gMC->Gsvolu("0HOL","TUBE",idtmed[kBrass],phole,3);
309 z=-pdivider[2]+2*ppins[2]+phole[2];
310 gMC->Gspos("0HOL",1,"0DIV",0,0,z,0,"ONLY");
311
312 //Socket
313 gMC->Gsvolu("0V1","TUBE",idtmed[kCer],pdiv1,3);
314 z=-pdivider[2]+pdiv1[2];
315 gMC->Gspos("0V1",1,"0DIV",0,0,z,0,"ONLY");
316 //Resistors
317 gMC->Gsvolu("0V2","TUBE",idtmed[kAir],pdiv2,3);
318 z=pdivider[2]-pdiv2[2];
319 gMC->Gspos("0V2",1,"0DIV",0,0,z,0,"ONLY");
320 gMC->Gsvolu("0RS","TUBE",idtmed[kCer],presist,3);
321 z=-pdiv2[2]+presist[2];
322 gMC->Gspos("0RS",1,"0V2",0,0,z,0,"ONLY");
323 gMC->Gsvolu("0RB","TUBE",idtmed[kRibber],pribber,3);
324 z=pdiv2[2]-pribber[2];
325 gMC->Gspos("0RB",1,"0V2",0,0,z,0,"ONLY");
326
327
328 //Support left side
329 /*
330 z=-pstart[2]+psupport1[2];
331 gMC->Gspos("0SU1",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
332 gMC->Gspos("0SU2",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh vnutri
333 z=-pstart[2]+psupport3[2];
334 gMC->Gspos("0SU3",2,"0STL",0,0,z,0,"ONLY"); //peredniaia kryshka
335 z=-pstart[2]+2.*psupport1[2];
336 gMC->Gspos("0SU4",2,"0STL",0,0,z,0,"MANY"); //zadnaiai kryshka
337 */
338 z=-pstart[2]+psupport1[2]+0.1;
339 gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
340 gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
341 z=-pstart[2]+psupport3[2]+0.1;
342 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
343 z=-pstart[2]+2.*psupport1[2]+0.1;
344 gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"MANY"); //zadnaiai kryshka
345 gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
346 z=-pinstart[2]+psupport6[2];
347 gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
348
349 z=pinstart[2]-psupport7[2];
350 gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
351
352
353 Float_t par[3];
354 par[0]=4.4;
355 par[1]=4.5;
356 par[2]=0.5;
357 gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
358 z=ppcon[3]+par[2];
359 gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
360 z += par[2];
361 par[0]=4.4;
362 par[1]=5.1;
363 par[2]=0.05;
364 gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
365 z += par[2];
366 gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
367 z=z+par[2];
368 par[0]=4.9;
369 par[1]=5.0;
370 par[2]=6.9/2;
2ad713c4 371 gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
372 z += par[2];
373 gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
374 z += par[2];
e4da63c2 375 /*
2ad713c4 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 gMC->Gsvolu("0SC3","CONE",idtmed[kC],parC,5);
383 z += parC[0];
384 gMC->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 gMC->Gsvolu("0SC4","TUBE",idtmed[kC],par,3);
390 z += par[2];
391 gMC->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 gMC->Gsvolu("0SA0","TUBE",idtmed[kAl],par,3);
396 gMC->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 gMC->Gsvolu("0SN1","TUBE",idtmed[kSteel],par,3);
401 gMC->Gspos("0SN1",1,"0SUP",0,0,z,0,"ONLY");
402 z += par[2];
e4da63c2 403 */
2ad713c4 404 par[0]=3.15;
e4da63c2 405 par[1]=4.9;
406 par[2]=0.1/2;
2ad713c4 407 gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
e4da63c2 408
2ad713c4 409 z += par[2];
410 gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
411 z=z+par[2];
412 par[0]=3.15;
413 par[1]=3.16;
e4da63c2 414 par[2]=4.5/2;
2ad713c4 415 gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
416 z += par[2];
417 gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
418 z=z+par[2];
419 par[0]=3.16; // eta chast' prikruchena k absorberu
420 par[1]=7.5;
e4da63c2 421 par[2]=0.2;
2ad713c4 422 gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
423 z += par[2];
424 gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
425 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
426 par[1]=7.5;
427 par[2]=0.01;
428 gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
429 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
e4da63c2 430
2ad713c4 431
432}
e4da63c2 433
6ca40650 434//------------------------------------------------------------------------
435void AliSTARTv0::CreateMaterials()
436{
ef51244a 437 Int_t isxfld = gAlice->Field()->Integ();
438 Float_t sxmgmx = gAlice->Field()->Max();
6ca40650 439 Float_t a,z,d,radl,absl,buf[1];
440 Int_t nbuf;
441
442// Scintillator CH
82fc3fb3 443 Float_t ascin[2]={1.01,12.01};
444 Float_t zscin[2]={1,6};
445 Float_t wscin[2]={1,1};
446 Float_t denscin=1.03;
2ad713c4 447//Lucite C(CH3)CO2CH3
448 Float_t alucite[3]={1.01,12.01,15.999};
449 Float_t zlucite[3]={1,6,8};
450 Float_t wlucite[3]={8,5,2};
451 Float_t denlucite=1.16;
452 // PMT glass SiO2
971579f6 453 Float_t aglass[2]={28.0855,15.9994};
454 Float_t zglass[2]={14.,8.};
455 Float_t wglass[2]={1.,2.};
456 Float_t dglass=2.65;
6ca40650 457// Ceramic 97.2% Al2O3 , 2.8% SiO2
971579f6 458 Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
459 Float_t aal2o3[2] = { 26.981539,15.9994 };
460 Float_t zal2o3[2] = { 13.,8. };
461 Float_t wal2o3[2] = { 2.,3. };
462 Float_t denscer = 3.6;
6ca40650 463
464// Brass 80% Cu, 20% Zn
465 Float_t abrass[2] = {63.546,65.39};
466 Float_t zbrass[2] = {29,30};
467 Float_t wbrass[2] = {0.8,0.2};
468 Float_t denbrass=8.96;
469
470//Ribber C6H12S
471 Float_t aribber[3] = {12.,1.,32.};
472 Float_t zribber[3] = {6.,1.,16.};
473 Float_t wribber[3] = {6.,12.,1.};
474 Float_t denribber=0.8;
2ad713c4 475// Support inside
476 Float_t asupport[2] = {12.,1.};
477 Float_t zsupport[2] = {6.,1.};
478 Float_t wsupport[2] = {1.,1.};
479 Float_t densupport=0.1;
60b0465d 480// AIR
481 Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
482 Float_t zAir[4]={6.,7.,8.,18.};
483 Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
484 Float_t dAir = 1.20479E-3;
485
6ca40650 486//*** Definition Of avaible START materials ***
971579f6 487 AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
488 AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
60b0465d 489 AliMixture(2, "START Air$", aAir, zAir, dAir,4,wAir);
490
2ad713c4 491 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
492 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
971579f6 493
494 AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
495 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
00d6d986 496 char namate[21]="";
971579f6 497 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
498 acer[0]=a;
499 zcer[0]=z;
500 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
501 acer[1]=a;
502 zcer[1]=z;
503
504 AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
505 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
506 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
507
508 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
2ad713c4 509 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
510 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
511
971579f6 512
ef51244a 513 AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
514 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
515 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
516 AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
2ad713c4 517 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
ef51244a 518 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
ef51244a 519 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
2ad713c4 520 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
4fdc4526 521 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
2ad713c4 522 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
523 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
524 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
6ca40650 525
2ad713c4 526 if(fDebug) cout<<ClassName()<<": ++++++++++++++Medium set++++++++++"<<endl;
6ca40650 527
528}
529//---------------------------------------------------------------------
ba380e33 530void AliSTARTv0::DrawModule() const
6ca40650 531{
532//
533// Draw a shaded view of the Forward multiplicity detector version 0
534//
971579f6 535
536 //Set ALIC mother transparent
537 gMC->Gsatt("ALIC","SEEN",0);
538 //
539 //Set volumes visible
2ca99a7f 540 gMC->Gsatt("0STA","SEEN",0);
541 gMC->Gsatt("0PMT","SEEN",1);
542 gMC->Gsatt("0DIV","SEEN",1);
971579f6 543 //
544 gMC->Gdopt("hide","on");
545 gMC->Gdopt("shad","on");
546 gMC->SetClipBox(".");
547 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
548 gMC->DefaultRange();
549 gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7);
550 gMC->Gdhead(1111,"T-Zero detector");
551 gMC->Gdopt("hide","off");
6ca40650 552}
971579f6 553
6ca40650 554//-------------------------------------------------------------------
555void AliSTARTv0::Init()
556{
971579f6 557// Initialises version 0 of the Forward Multiplicity Detector
558//
559//Int_t *idtmed = gAlice->Idtmed();
ca7295b2 560 AliSTART::Init();
2ca99a7f 561 fIdSens1=gMC->VolId("0TOP");
e4da63c2 562 AliDebug(1,Form("%s: *** START version 0 initialized ***\n",ClassName()));
563
6ca40650 564}
565
566//-------------------------------------------------------------------
567
568void AliSTARTv0::StepManager()
569{
570 //
571 // Called for every step in the START Detector
a94466c5 572 // See AliSTARTv1
573
971579f6 574}
a94466c5 575//---------------------------------------------------------------------
576
971579f6 577
578
579
6ca40650 580
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