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bc46b572 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/////////////////////////////////////////////////////////////////////
18// //
19// START ( T-zero) detector version 1 //
20//
21//Begin Html
22/*
23<img src="gif/AliSTARTv1Class.gif">
24*/
25//End Html
26// //
27// //
28//////////////////////////////////////////////////////////////////////
29
88cb7938 30#include <Riostream.h>
31#include <stdlib.h>
32
bc46b572 33#include <TGeometry.h>
0cc62300 34#include <TLorentzVector.h>
88cb7938 35#include <TMath.h>
36#include <TNode.h>
37#include <TTUBE.h>
38#include <TVirtualMC.h>
bc46b572 39
94de3818 40#include "AliMagF.h"
88cb7938 41#include "AliRun.h"
bc46b572 42#include "AliSTARThit.h"
88cb7938 43#include "AliSTARTv1.h"
5d12ce38 44#include "AliMC.h"
bc46b572 45
46ClassImp(AliSTARTv1)
47
48//--------------------------------------------------------------------
49AliSTARTv1::AliSTARTv1(const char *name, const char *title):
50 AliSTART(name,title)
51{
52 //
53 // Standart constructor for START Detector version 0
54 //
55 fIdSens1=0;
56// setBufferSize(128000);
57}
58//-------------------------------------------------------------------------
59void AliSTARTv1::CreateGeometry()
60{
61 //
62 // Create the geometry of START Detector version 0
63 //
64 // begin Html
65 /*
66 <img src="gif/AliSTARTv0.gif">
67 */
68 //
69
70
71 Int_t *idtmed = fIdtmed->GetArray();
72
73 Int_t is;
74 Int_t idrotm[999];
75 Float_t x,y,z;
76
304618a5 77 Float_t pstartR[18]={0., 360., 5.,
78 -76.5+0.00+69.7, 4.25, 10.,
79 -76.5+6.05+69.7, 4.5, 10.,
80 -76.5+8.05+69.7, 4.5, 10.,
81 -76.5+8.05+69.7, 5.1, 10.,
82 -62.9+0.00+69.7, 5.1, 10.};
83
84 Float_t pstart[3]={4.3, 10.,6.8};
d65c9254 85 Float_t pinstart[3]={0.,1.6,6.5};
bc46b572 86 Float_t ppmt[3]={0.,1.3,3.5};
87 Float_t pdivider[3]={0.,1.2,1.75};
88 Float_t pdiv2[3]={0.,1.2,1.25};
89 Float_t pdiv1[3]={0.6,1.2,0.5};
90 Float_t ptop[3]={0.,1.3,1.5};
91 Float_t pbot[3]={0.6,1.2,0.1};
92 Float_t pglass[3]={1.2,1.3,2.};
93 Float_t pcer[3]={0.9,1.1,0.09};
94 Float_t psteel[3]={0.9,1.1,0.01};
95 Float_t ppins[3]={0.6,1.2,0.014};
96 Float_t phole[3]={0.6,1.2,0.015};
97 Float_t pknob[3]={0.5,0.6,0.4};
98 Float_t pknob_vac[3]={0.,0.5,0.4};
99 Float_t pknob_bot[3]={0.,0.6,0.05};
100 Float_t pribber[3] = {0.,1.2,2.413/2.};
101 Float_t presist[3] = {0.,1.2,0.087/2.};
304618a5 102 Float_t psupport1[3] = {4.51,4.6,4.0};//C kozhuh vnutri
d65c9254 103 Float_t psupport2[3] = {9.4,9.5,4.0};// snaruzhi C
304618a5 104 Float_t psupport3[3] = {4.51,9.5,0.05};//kryshki C
d65c9254 105 Float_t psupport4[3] = {0,1.6,0.05};// dyrki dlia feu v zadnej kryshke Air
69b30e0f 106 Float_t psupport5[3] = {1.44,1.5,6.5}; // stakanchik dlai feu C
107 Float_t psupport6[3] = {0,1.5,0.05}; //kryshechka stakanchika Al
d65c9254 108 Float_t psupport7[3] = {1.5,1.6,0.6}; //kolechko snaruzhu stakanchika Al
109 // Mother Volume katushka dlia krepezha vokrug truby k Absorbru
2ad713c4 110 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
d65c9254 111 Float_t ppcon[70];
112 ppcon[0] = 0;
113 ppcon[1] = 360;
304618a5 114 ppcon[2] = 13;
d65c9254 115// 1:
116 ppcon[3] = 14.1/2;
117 ppcon[4] = 4.4;
304618a5 118 ppcon[5] = 4.5;
d65c9254 119// 2
304618a5 120 ppcon[6] = ppcon[3]+1.;
d65c9254 121 ppcon[7] = 4.4;
304618a5 122 ppcon[8] = 4.5;
d65c9254 123// 3
124 ppcon[9] = ppcon[6];
125 ppcon[10] = 4.4;
304618a5 126 ppcon[11] = 5.1;
d65c9254 127
128// 4
129
130 ppcon[12] = ppcon[9]+0.1;
131 ppcon[13] = 4.4;
304618a5 132 ppcon[14] = 5.1;
d65c9254 133// 5
134
135 ppcon[15] = ppcon[12];
304618a5 136 ppcon[16] = 4.9;
137 ppcon[17] = 5.1;
d65c9254 138
139// 6
304618a5 140 ppcon[18] = ppcon[15]+7.05;
141 ppcon[19] = 4.9;
142 ppcon[20] = 5.1;
d65c9254 143
144// 7
145 ppcon[21] = ppcon[18];
304618a5 146 ppcon[22] = 4.9;
147 ppcon[23] = 5.1;
148
149
150/// 8
151 ppcon[24] = ppcon[21];
152 ppcon[25] = 3.15;
153 ppcon[26] = 3.25;
d65c9254 154
d65c9254 155// 9
304618a5 156 ppcon[27] = ppcon[24]+4.5;
50063378 157 ppcon[28] = 3.15;
304618a5 158 ppcon[29] = 3.25;
d65c9254 159
160// 10
304618a5 161 ppcon[30] = ppcon[27];
d65c9254 162 ppcon[31] = 3.15;
304618a5 163 ppcon[32] = 3.25;
164
d65c9254 165// 11
304618a5 166 ppcon[33] = ppcon[27];
d65c9254 167 ppcon[34] = 3.15;
304618a5 168 ppcon[35] = 7.6;
169
d65c9254 170// 12
304618a5 171 ppcon[36] = ppcon[33]+0.4;
d65c9254 172 ppcon[37] = 3.15;
304618a5 173 ppcon[38] = 7.6;
174
d65c9254 175// 13
304618a5 176 ppcon[39] = ppcon[36];
d65c9254 177 ppcon[40] = 3.15;
304618a5 178 ppcon[41] = 7.6;
179
180 gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
2ad713c4 181 z=-69.7;//-14.1/2;
182 gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
bc46b572 183
50063378 184
185 Float_t zdetRight=69.7,zdetLeft=350;
bc46b572 186 //-------------------------------------------------------------------
187 // START volume
188 //-------------------------------------------------------------------
189
bc46b572 190
304618a5 191 gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
d65c9254 192 gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
2ad713c4 193 gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetRight-pstart[2],idrotm[901],"ONLY");
194 gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetLeft+pstart[2],0,"ONLY");
bc46b572 195
196//START interior
d65c9254 197 gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
198 gMC->Gsvolu("0PMT","TUBE",idtmed[kVac],ppmt,3);
199 gMC->Gsvolu("0DIV","TUBE",idtmed[kVac],pdivider,3);
200 gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
201 gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
202 gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
203 gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
204 gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
205 cout<<" 0Su6 >> "<<psupport5[0]<<" "<<psupport5[1]<<" "<<psupport5[2]<<endl;
206 gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
207 gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
208 gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
209
bc46b572 210// first ring: 12 units of Scintillator+PMT+divider
d65c9254 211 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetRight);
212 Float_t angel = 2 * TMath::Pi() / 12;
213 Float_t phi[3];
304618a5 214
d65c9254 215 for (is=0; is<12; is++)
bc46b572 216 {
ef51244a 217
d65c9254 218 x = 6.5 * TMath::Sin(is * angel);
219 y = 6.5 * TMath::Cos(is * angel);
220
221 phi[0] = -30 * is;
222 phi[1] = 90 - is * 30;
223 phi[2] = 90 - is * 30;
224 for (Int_t j = 0; j < 3; j++)
225 if (phi[j] < 0) phi[j] += 360;
226
227 AliMatrix (idrotm[902 + is], 90., phi[0],
228 90. + theta, phi[1],
229 theta, phi[2]);
230 z=-pstart[2]+pinstart[2]+0.2;
231 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
232 gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
9436d88b 233 }
304618a5 234
235
d65c9254 236 x=0;
9436d88b 237 y=0;
304618a5 238 z=-pinstart[2]+ppmt[2]+2.*psupport6[2]+0.1;
9436d88b 239 gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
d65c9254 240 z=z+pdivider[2]+ppmt[2];
9436d88b 241 gMC->Gspos("0DIV",1,"0INS",x,y,z,0,"ONLY");
242
bc46b572 243// PMT
244
245 // Entry window (glass)
d65c9254 246 gMC->Gsvolu("0TOP","TUBE",idtmed[kGlass],ptop,3); //glass
a94466c5 247 // gMC->Gsvolu("0TOP","TUBE",idtmed[12],ptop,3); //lucite
248 z=-ppmt[2]+ptop[2];
2ca99a7f 249 gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 250 // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
a94466c5 251
bc46b572 252 // Bottom glass
d65c9254 253 gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
bc46b572 254 z=ppmt[2]-pbot[2];
9e1a0ddb 255 if(fDebug) printf("%s: Z bottom %f\n",ClassName(),z);
2ca99a7f 256 gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 257 // Side cylinder glass
d65c9254 258 gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
bc46b572 259 z=ppmt[2]-pglass[2];
260 // printf("Z glass %f\n",z);
2ca99a7f 261 gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 262 //PMT electrodes support structure
d65c9254 263 gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
264 gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
bc46b572 265 z=-ppmt[2]+2*ptop[2]+0.3;;
266 // printf("Z Cer 1 %f\n",z);
267 for (is=1; is<=15; is++)
268 {
269 z=z+psteel[2]+pcer[2];
2ca99a7f 270 gMC->Gspos("0CER",is,"0PMT",0,0,z,0,"ONLY");
bc46b572 271 z=z+psteel[2]+pcer[2];
2ca99a7f 272 gMC->Gspos("0STE",is,"0PMT",0,0,z,0,"ONLY");
bc46b572 273 }
274
275 // Divider
276 // Knob at the bottom of PMT baloon
277
2ca99a7f 278 gMC->Gsvolu("0NB","TUBE",idtmed[6],pknob,3);
bc46b572 279 z=-pdivider[2]+pknob[2];
280 // printf("zknob %f\n",z);
2ca99a7f 281 gMC->Gspos("0NB",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 282 gMC->Gsvolu("0KB","TUBE",idtmed[kGlass],pknob_bot,3);
bc46b572 283 z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
2ca99a7f 284 // printf(knobbot %f\n",z);
285 gMC->Gspos("0KB",1,"0DIV ",0,0,z,0,"ONLY");
d65c9254 286 gMC->Gsvolu("0VAC","TUBE",idtmed[kVac],pknob_vac,3);
bc46b572 287 z=-pdivider[2]+pknob_vac[2];
288 // printf("knobvac %f\n",z);
2ca99a7f 289 gMC->Gspos("0VAC",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 290 //Steel pins + pin holes
d65c9254 291 gMC->Gsvolu("0PIN","TUBE",idtmed[kSteel],ppins,3);
bc46b572 292 z=-pdivider[2]+ppins[2];
2ca99a7f 293 gMC->Gspos("0PIN",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 294 gMC->Gsvolu("0HOL","TUBE",idtmed[kBrass],phole,3);
bc46b572 295 z=-pdivider[2]+2*ppins[2]+phole[2];
2ca99a7f 296 gMC->Gspos("0HOL",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 297
298 //Socket
d65c9254 299 gMC->Gsvolu("0V1","TUBE",idtmed[kCer],pdiv1,3);
bc46b572 300 z=-pdivider[2]+pdiv1[2];
2ca99a7f 301 gMC->Gspos("0V1",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 302 //Resistors
d65c9254 303 gMC->Gsvolu("0V2","TUBE",idtmed[kAir],pdiv2,3);
bc46b572 304 z=pdivider[2]-pdiv2[2];
2ca99a7f 305 gMC->Gspos("0V2",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 306 gMC->Gsvolu("0RS","TUBE",idtmed[kCer],presist,3);
bc46b572 307 z=-pdiv2[2]+presist[2];
2ca99a7f 308 gMC->Gspos("0RS",1,"0V2",0,0,z,0,"ONLY");
d65c9254 309 gMC->Gsvolu("0RB","TUBE",idtmed[kRibber],pribber,3);
bc46b572 310 z=pdiv2[2]-pribber[2];
2ca99a7f 311 gMC->Gspos("0RB",1,"0V2",0,0,z,0,"ONLY");
304618a5 312
313
d65c9254 314 //Support left side
315
316 z=-pstart[2]+psupport1[2];
317 gMC->Gspos("0SU1",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
318 gMC->Gspos("0SU2",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh vnutri
319 z=-pstart[2]+psupport3[2];
320 gMC->Gspos("0SU3",2,"0STL",0,0,z,0,"ONLY"); //peredniaia kryshka
321 z=-pstart[2]+2.*psupport1[2];
322 gMC->Gspos("0SU4",2,"0STL",0,0,z,0,"ONLY"); //zadnaiai kryshka
323 //Dyrki dlia feu v zadnej kryshke
324 z=0;
325
326 for (is=1; is<=12; is++)
327 {
328 x=6.5*TMath::Sin(is*angel);
329 y=6.5 *TMath::Cos(is*angel);
330 gMC->Gspos("0SU5",is+12,"0SU4",x,y,z,0,"ONLY");
331
332 }
333
334 //Support right side
335
304618a5 336 z=-pstart[2]+psupport1[2]+0.1;
d65c9254 337 gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
338 gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
304618a5 339 z=-pstart[2]+psupport3[2]+0.1;
d65c9254 340 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
304618a5 341 z=-pstart[2]+2.*psupport1[2]+0.1;
d65c9254 342 gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"ONLY"); //zadnaiai kryshka
343 //Dyrki dlia feu v zadnej kryshke
344 z=0;
304618a5 345
d65c9254 346 for (is=1; is<=12; is++)
347 {
348 x=(6.5+7.8*TMath::Tan(5.4*3.1415/180)) *TMath::Sin(is*angel);
349 y=(6.5+7.8*TMath::Tan(5.4*3.1415/180)) *TMath::Cos(is*angel);
350 gMC->Gspos("0SU5",is,"0SU4",x,y,z,0,"ONLY");
351
352 }
353
354 gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
69b30e0f 355 z=-pinstart[2]+psupport6[2];
356 gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
bc46b572 357
d65c9254 358 z=pinstart[2]-psupport7[2];
69b30e0f 359 gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
d65c9254 360
304618a5 361
d65c9254 362 Float_t par[3];
363 par[0]=4.4;
364 par[1]=4.5;
365 par[2]=0.5;
366 gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
367 z=ppcon[3]+par[2];
368 gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
369 z += par[2];
370 par[0]=4.4;
371 par[1]=5.1;
372 par[2]=0.05;
373 gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
374 z += par[2];
375 gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
376 z=z+par[2];
304618a5 377 par[0]=4.9;
378 par[1]=5.0;
379 par[2]=6.9/2;
d65c9254 380 gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
381 z += par[2];
382 gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
383 z += par[2];
304618a5 384 /*
d65c9254 385 Float_t parC[5];
386 parC[0]=0.25;
387 parC[1]=5.1;
388 parC[2]=5.2;
389 parC[3]=5.5;
390 parC[4]=5.6;
391 gMC->Gsvolu("0SC3","CONE",idtmed[kC],parC,5);
392 z += parC[0];
393 gMC->Gspos("0SC3",1,"0SUP",0,0,z,0,"ONLY");
394 z += parC[0];
304618a5 395 par[0]=5
396.5;
d65c9254 397 par[1]=5.6;
398 par[2]=1.2/2;
399 gMC->Gsvolu("0SC4","TUBE",idtmed[kC],par,3);
400 z += par[2];
401 gMC->Gspos("0SC4",1,"0SUP",0,0,z,0,"ONLY");
402 par[0]=5.1;
403 par[1]=5.5;
404 par[2]=1.2/2;
405 gMC->Gsvolu("0SA0","TUBE",idtmed[kAl],par,3);
406 gMC->Gspos("0SA0",1,"0SUP",0,0,z,0,"ONLY");
407 //gvozdi dlia skruchivaniia Al i C parts
408 par[0]=5.75;
409 par[1]=5.78;
410 gMC->Gsvolu("0SN1","TUBE",idtmed[kSteel],par,3);
411 gMC->Gspos("0SN1",1,"0SUP",0,0,z,0,"ONLY");
412 z += par[2];
304618a5 413 */
d65c9254 414 par[0]=3.15;
304618a5 415 par[1]=4.9;
416 par[2]=0.1/2;
d65c9254 417 gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
304618a5 418
d65c9254 419 z += par[2];
420 gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
421 z=z+par[2];
422 par[0]=3.15;
423 par[1]=3.16;
304618a5 424 par[2]=4.5/2;
d65c9254 425 gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
426 z += par[2];
427 gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
428 z=z+par[2];
429 par[0]=3.16; // eta chast' prikruchena k absorberu
430 par[1]=7.5;
304618a5 431 par[2]=0.2;
d65c9254 432 gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
433 z += par[2];
434 gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
435 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
436 par[1]=7.5;
437 par[2]=0.01;
438 gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
439 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
304618a5 440
d65c9254 441
bc46b572 442}
443//------------------------------------------------------------------------
444void AliSTARTv1::CreateMaterials()
445{
ef51244a 446 Int_t isxfld = gAlice->Field()->Integ();
447 Float_t sxmgmx = gAlice->Field()->Max();
bc46b572 448 Float_t a,z,d,radl,absl,buf[1];
449 Int_t nbuf;
450
451// Scintillator CH
452 Float_t ascin[2]={1.01,12.01};
453 Float_t zscin[2]={1,6};
454 Float_t wscin[2]={1,1};
455 Float_t denscin=1.03;
a94466c5 456//Lucite C(CH3)CO2CH3
457 Float_t alucite[3]={1.01,12.01,15.999};
458 Float_t zlucite[3]={1,6,8};
459 Float_t wlucite[3]={8,5,2};
460 Float_t denlucite=1.16;
461 // PMT glass SiO2
bc46b572 462 Float_t aglass[2]={28.0855,15.9994};
463 Float_t zglass[2]={14.,8.};
464 Float_t wglass[2]={1.,2.};
465 Float_t dglass=2.65;
466// Ceramic 97.2% Al2O3 , 2.8% SiO2
467 Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
468 Float_t aal2o3[2] = { 26.981539,15.9994 };
469 Float_t zal2o3[2] = { 13.,8. };
470 Float_t wal2o3[2] = { 2.,3. };
471 Float_t denscer = 3.6;
472
473// Brass 80% Cu, 20% Zn
474 Float_t abrass[2] = {63.546,65.39};
475 Float_t zbrass[2] = {29,30};
476 Float_t wbrass[2] = {0.8,0.2};
477 Float_t denbrass=8.96;
478
479//Ribber C6H12S
480 Float_t aribber[3] = {12.,1.,32.};
481 Float_t zribber[3] = {6.,1.,16.};
482 Float_t wribber[3] = {6.,12.,1.};
483 Float_t denribber=0.8;
d65c9254 484// Support inside
485 Float_t asupport[2] = {12.,1.};
486 Float_t zsupport[2] = {6.,1.};
487 Float_t wsupport[2] = {1.,1.};
488 Float_t densupport=0.1;
bc46b572 489
490//*** Definition Of avaible START materials ***
491 AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
492 AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
493 AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999);
d65c9254 494 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
495 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
bc46b572 496
497 AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
498 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
00d6d986 499 char namate[21]="";
bc46b572 500 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
501 acer[0]=a;
502 zcer[0]=z;
503 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
504 acer[1]=a;
505 zcer[1]=z;
506
507 AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
508 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
509 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
510
511 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
a94466c5 512 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
d65c9254 513 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
514
bc46b572 515
ef51244a 516 AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
517 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
518 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
519 AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
d65c9254 520 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
ef51244a 521 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
522 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
523 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
a94466c5 524 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
d65c9254 525 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
526 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
527 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
a94466c5 528
9e1a0ddb 529 if(fDebug) cout<<ClassName()<<": ++++++++++++++Medium set++++++++++"<<endl;
bc46b572 530
bc46b572 531}
532//---------------------------------------------------------------------
533void AliSTARTv1::DrawDetector()
534{
535//
536// Draw a shaded view of the Forward multiplicity detector version 0
537//
538
539 //Set ALIC mother transparent
540 gMC->Gsatt("ALIC","SEEN",0);
541 //
542 //Set volumes visible
2ca99a7f 543 // gMC->Gsatt("0ST","SEEN",0);
544 gMC->Gsatt("0INS","SEEN",0);
545 gMC->Gsatt("0PMT","SEEN",1);
546 gMC->Gsatt("0DIV","SEEN",1);
bc46b572 547 //
d65c9254 548 gMC->Gdopt("hide","off");
bc46b572 549 gMC->Gdopt("shad","on");
550 gMC->SetClipBox(".");
551 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
552 gMC->DefaultRange();
553 gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7);
554 gMC->Gdhead(1111,"T-Zero detector");
555 gMC->Gdopt("hide","off");
556}
557
558//-------------------------------------------------------------------
559void AliSTARTv1::Init()
560{
561// Initialises version 0 of the Forward Multiplicity Detector
562//
563//Int_t *idtmed = gAlice->Idtmed();
564 AliSTART::Init();
2ca99a7f 565 fIdSens1=gMC->VolId("0TOP");
9e1a0ddb 566 if(fDebug) printf("%s: *** START version 0 initialized ***\n",ClassName());
bc46b572 567
568}
569
570//-------------------------------------------------------------------
571
572void AliSTARTv1::StepManager()
573{
574 //
575 // Called for every step in the START Detector
576 //
577 Int_t id,copy,copy1;
578 static Float_t hits[7];
579 static Float_t edep;
580 static Int_t vol[2];
581 TLorentzVector pos;
582
583 TClonesArray &lhits = *fHits;
584
585 if(!gMC->IsTrackAlive()) return; // particle has disappeared
e73d68f2 586 // Float_t charge = gMC->TrackCharge();
587 // if(TMath::Abs(charge)<=0.) return; //take only charged particles
bc46b572 588 id=gMC->CurrentVolID(copy);
589
590
724699e1 591 // Check the sensetive volume
bc46b572 592 if(id==fIdSens1 ) {
593 if(gMC->IsTrackEntering()) {
594 gMC->CurrentVolOffID(2,copy);
2ca99a7f 595 vol[1]=copy;
596 gMC->CurrentVolOffID(3,copy1);
597 vol[0]=copy1;
a94466c5 598
bc46b572 599 gMC->TrackPosition(pos);
600 hits[0] = pos[0];
601 hits[1] = pos[1];
602 hits[2] = pos[2];
a94466c5 603 if(pos[2]<0) vol[0]=2;
604 if(pos[2]>=0) vol[0]=1;
605
bc46b572 606 Float_t etot=gMC->Etot();
607 hits[4]=etot;
ef51244a 608 Int_t iPart= gMC->TrackPid();
609 Int_t partID=gMC->IdFromPDG(iPart);
610 hits[5]=partID;
bc46b572 611 Float_t ttime=gMC->TrackTime();
612 hits[6]=ttime*1e9;
613 edep=0;
614 }
615 if(gMC->IsTrackInside()) {
616 Float_t de=gMC->Edep();
617 edep=edep+de;
f3ed336b 618 }
724699e1 619
620 if(gMC->IsTrackExiting()) {
621 Float_t de=gMC->Edep();
622 edep=edep+de;
623 hits[3]=edep*1e3;
5d12ce38 624 new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
724699e1 625 }
bc46b572 626 }
627//---------------------------------------------------------------------
628}
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