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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
304618a5 149/// 8
affef71b 150 ppcon[24] = ppcon[21]+0.01;
304618a5 151 ppcon[25] = 3.15;
152 ppcon[26] = 3.25;
d65c9254 153
affef71b 154/// 9
155 ppcon[27] = ppcon[24];
50063378 156 ppcon[28] = 3.15;
304618a5 157 ppcon[29] = 3.25;
affef71b 158
d65c9254 159// 10
affef71b 160 ppcon[30] = ppcon[27]+4.5;
d65c9254 161 ppcon[31] = 3.15;
304618a5 162 ppcon[32] = 3.25;
163
d65c9254 164// 11
affef71b 165 ppcon[33] = ppcon[30];
d65c9254 166 ppcon[34] = 3.15;
affef71b 167 ppcon[35] = 3.25;
304618a5 168
d65c9254 169// 12
affef71b 170 ppcon[36] = ppcon[33];
d65c9254 171 ppcon[37] = 3.15;
304618a5 172 ppcon[38] = 7.6;
173
d65c9254 174// 13
affef71b 175 ppcon[39] = ppcon[33]+0.4;
d65c9254 176 ppcon[40] = 3.15;
304618a5 177 ppcon[41] = 7.6;
178
affef71b 179// 14
180// ppcon[39] = ppcon[36];
181// ppcon[40] = 3.15;
182// ppcon[41] = 7.6;
183
304618a5 184 gMC->Gsvolu("0SUP", "PCON", idtmed[kAir], ppcon,42);
2ad713c4 185 z=-69.7;//-14.1/2;
186 gMC->Gspos("0SUP",1,"ALIC",0.,0.,z,idrotm[901],"ONLY");
bc46b572 187
50063378 188
189 Float_t zdetRight=69.7,zdetLeft=350;
bc46b572 190 //-------------------------------------------------------------------
191 // START volume
192 //-------------------------------------------------------------------
193
bc46b572 194
304618a5 195 gMC->Gsvolu("0STR","PCON",idtmed[kAir],pstartR,18);
d65c9254 196 gMC->Gsvolu("0STL","TUBE",idtmed[kAir],pstart,3);
2ad713c4 197 gMC->Gspos("0STR",1,"ALIC",0.,0.,-zdetRight-pstart[2],idrotm[901],"ONLY");
198 gMC->Gspos("0STL",1,"ALIC",0.,0.,zdetLeft+pstart[2],0,"ONLY");
bc46b572 199
200//START interior
d65c9254 201 gMC->Gsvolu("0INS","TUBE",idtmed[kAir],pinstart,3);
202 gMC->Gsvolu("0PMT","TUBE",idtmed[kVac],ppmt,3);
203 gMC->Gsvolu("0DIV","TUBE",idtmed[kVac],pdivider,3);
204 gMC->Gsvolu("0SU1","TUBE",idtmed[kC],psupport1,3);//C kozhuh vnutri
205 gMC->Gsvolu("0SU2","TUBE",idtmed[kC],psupport2,3);// snaruzhi C
206 gMC->Gsvolu("0SU3","TUBE",idtmed[kC],psupport3,3);//kryshka perednaiai C
207 gMC->Gsvolu("0SU4","TUBE",idtmed[kC],psupport3,3);//kryshka zadnaiai C
208 gMC->Gsvolu("0SU5","TUBE",idtmed[kAir],psupport4,3);// dyrki dlia feu v zadnej kryshke Air
209 cout<<" 0Su6 >> "<<psupport5[0]<<" "<<psupport5[1]<<" "<<psupport5[2]<<endl;
210 gMC->Gsvolu("0SU6","TUBE",idtmed[kC],psupport5,3);// stakanchik dlai feu C
211 gMC->Gsvolu("0SU7","TUBE",idtmed[kAl],psupport6,3);//kryshechka stakanchika Al
212 gMC->Gsvolu("0SU8","TUBE",idtmed[kAl],psupport7,3);//kolechko snaruzhu stakanchika Al
213
bc46b572 214// first ring: 12 units of Scintillator+PMT+divider
d65c9254 215 Float_t theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zdetRight);
216 Float_t angel = 2 * TMath::Pi() / 12;
217 Float_t phi[3];
304618a5 218
d65c9254 219 for (is=0; is<12; is++)
bc46b572 220 {
ef51244a 221
d65c9254 222 x = 6.5 * TMath::Sin(is * angel);
223 y = 6.5 * TMath::Cos(is * angel);
224
225 phi[0] = -30 * is;
226 phi[1] = 90 - is * 30;
227 phi[2] = 90 - is * 30;
228 for (Int_t j = 0; j < 3; j++)
229 if (phi[j] < 0) phi[j] += 360;
230
231 AliMatrix (idrotm[902 + is], 90., phi[0],
232 90. + theta, phi[1],
233 theta, phi[2]);
234 z=-pstart[2]+pinstart[2]+0.2;
235 gMC->Gspos ("0INS", is + 1, "0STR", x, y, z, idrotm[902 + is], "ONLY");
236 gMC->Gspos ("0INS", is + 13, "0STL", x, y, z, 0, "ONLY");
9436d88b 237 }
304618a5 238
239
d65c9254 240 x=0;
9436d88b 241 y=0;
304618a5 242 z=-pinstart[2]+ppmt[2]+2.*psupport6[2]+0.1;
9436d88b 243 gMC->Gspos("0PMT",1,"0INS",x,y,z,0,"ONLY");
d65c9254 244 z=z+pdivider[2]+ppmt[2];
9436d88b 245 gMC->Gspos("0DIV",1,"0INS",x,y,z,0,"ONLY");
246
bc46b572 247// PMT
248
249 // Entry window (glass)
d65c9254 250 gMC->Gsvolu("0TOP","TUBE",idtmed[kGlass],ptop,3); //glass
a94466c5 251 // gMC->Gsvolu("0TOP","TUBE",idtmed[12],ptop,3); //lucite
252 z=-ppmt[2]+ptop[2];
2ca99a7f 253 gMC->Gspos("0TOP",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 254 // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
a94466c5 255
bc46b572 256 // Bottom glass
d65c9254 257 gMC->Gsvolu("0BOT","TUBE",idtmed[kGlass],pbot,3);
bc46b572 258 z=ppmt[2]-pbot[2];
9e1a0ddb 259 if(fDebug) printf("%s: Z bottom %f\n",ClassName(),z);
2ca99a7f 260 gMC->Gspos("0BOT",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 261 // Side cylinder glass
d65c9254 262 gMC->Gsvolu("0OUT","TUBE",idtmed[kGlass],pglass,3);
bc46b572 263 z=ppmt[2]-pglass[2];
264 // printf("Z glass %f\n",z);
2ca99a7f 265 gMC->Gspos("0OUT",1,"0PMT",0,0,z,0,"ONLY");
bc46b572 266 //PMT electrodes support structure
d65c9254 267 gMC->Gsvolu("0CER","TUBE",idtmed[kCer],pcer,3);
268 gMC->Gsvolu("0STE","TUBE",idtmed[kSteel],psteel,3);
bc46b572 269 z=-ppmt[2]+2*ptop[2]+0.3;;
270 // printf("Z Cer 1 %f\n",z);
271 for (is=1; is<=15; is++)
272 {
273 z=z+psteel[2]+pcer[2];
2ca99a7f 274 gMC->Gspos("0CER",is,"0PMT",0,0,z,0,"ONLY");
bc46b572 275 z=z+psteel[2]+pcer[2];
2ca99a7f 276 gMC->Gspos("0STE",is,"0PMT",0,0,z,0,"ONLY");
bc46b572 277 }
278
279 // Divider
280 // Knob at the bottom of PMT baloon
281
2ca99a7f 282 gMC->Gsvolu("0NB","TUBE",idtmed[6],pknob,3);
bc46b572 283 z=-pdivider[2]+pknob[2];
284 // printf("zknob %f\n",z);
2ca99a7f 285 gMC->Gspos("0NB",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 286 gMC->Gsvolu("0KB","TUBE",idtmed[kGlass],pknob_bot,3);
bc46b572 287 z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
2ca99a7f 288 // printf(knobbot %f\n",z);
289 gMC->Gspos("0KB",1,"0DIV ",0,0,z,0,"ONLY");
d65c9254 290 gMC->Gsvolu("0VAC","TUBE",idtmed[kVac],pknob_vac,3);
bc46b572 291 z=-pdivider[2]+pknob_vac[2];
292 // printf("knobvac %f\n",z);
2ca99a7f 293 gMC->Gspos("0VAC",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 294 //Steel pins + pin holes
d65c9254 295 gMC->Gsvolu("0PIN","TUBE",idtmed[kSteel],ppins,3);
bc46b572 296 z=-pdivider[2]+ppins[2];
2ca99a7f 297 gMC->Gspos("0PIN",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 298 gMC->Gsvolu("0HOL","TUBE",idtmed[kBrass],phole,3);
bc46b572 299 z=-pdivider[2]+2*ppins[2]+phole[2];
2ca99a7f 300 gMC->Gspos("0HOL",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 301
302 //Socket
d65c9254 303 gMC->Gsvolu("0V1","TUBE",idtmed[kCer],pdiv1,3);
bc46b572 304 z=-pdivider[2]+pdiv1[2];
2ca99a7f 305 gMC->Gspos("0V1",1,"0DIV",0,0,z,0,"ONLY");
bc46b572 306 //Resistors
d65c9254 307 gMC->Gsvolu("0V2","TUBE",idtmed[kAir],pdiv2,3);
bc46b572 308 z=pdivider[2]-pdiv2[2];
2ca99a7f 309 gMC->Gspos("0V2",1,"0DIV",0,0,z,0,"ONLY");
d65c9254 310 gMC->Gsvolu("0RS","TUBE",idtmed[kCer],presist,3);
bc46b572 311 z=-pdiv2[2]+presist[2];
2ca99a7f 312 gMC->Gspos("0RS",1,"0V2",0,0,z,0,"ONLY");
d65c9254 313 gMC->Gsvolu("0RB","TUBE",idtmed[kRibber],pribber,3);
bc46b572 314 z=pdiv2[2]-pribber[2];
2ca99a7f 315 gMC->Gspos("0RB",1,"0V2",0,0,z,0,"ONLY");
304618a5 316
317
d65c9254 318 //Support left side
319
320 z=-pstart[2]+psupport1[2];
321 gMC->Gspos("0SU1",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
322 gMC->Gspos("0SU2",2,"0STL",0,0,z,0,"ONLY"); //C kozhuh vnutri
323 z=-pstart[2]+psupport3[2];
324 gMC->Gspos("0SU3",2,"0STL",0,0,z,0,"ONLY"); //peredniaia kryshka
325 z=-pstart[2]+2.*psupport1[2];
326 gMC->Gspos("0SU4",2,"0STL",0,0,z,0,"ONLY"); //zadnaiai kryshka
327 //Dyrki dlia feu v zadnej kryshke
328 z=0;
329
330 for (is=1; is<=12; is++)
331 {
332 x=6.5*TMath::Sin(is*angel);
333 y=6.5 *TMath::Cos(is*angel);
334 gMC->Gspos("0SU5",is+12,"0SU4",x,y,z,0,"ONLY");
335
336 }
337
338 //Support right side
339
304618a5 340 z=-pstart[2]+psupport1[2]+0.1;
d65c9254 341 gMC->Gspos("0SU1",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh snaruzhi
342 gMC->Gspos("0SU2",1,"0STR",0,0,z,0,"ONLY"); //C kozhuh vnutri
304618a5 343 z=-pstart[2]+psupport3[2]+0.1;
d65c9254 344 gMC->Gspos("0SU3",1,"0STR",0,0,z,0,"ONLY"); //peredniaia kryshka
304618a5 345 z=-pstart[2]+2.*psupport1[2]+0.1;
d65c9254 346 gMC->Gspos("0SU4",1,"0STR",0,0,z,0,"ONLY"); //zadnaiai kryshka
347 //Dyrki dlia feu v zadnej kryshke
348 z=0;
304618a5 349
d65c9254 350 for (is=1; is<=12; is++)
351 {
352 x=(6.5+7.8*TMath::Tan(5.4*3.1415/180)) *TMath::Sin(is*angel);
353 y=(6.5+7.8*TMath::Tan(5.4*3.1415/180)) *TMath::Cos(is*angel);
354 gMC->Gspos("0SU5",is,"0SU4",x,y,z,0,"ONLY");
355
356 }
357
358 gMC->Gspos("0SU6",1,"0INS",0,0,0,0,"ONLY");//C stakanchik dlia feu
69b30e0f 359 z=-pinstart[2]+psupport6[2];
360 gMC->Gspos("0SU7",1,"0INS",0,0,z,0,"ONLY"); //Al kryshechka
bc46b572 361
d65c9254 362 z=pinstart[2]-psupport7[2];
69b30e0f 363 gMC->Gspos("0SU8",1,"0INS",0,0,z,0,"ONLY"); //Al kolechko
d65c9254 364
304618a5 365
d65c9254 366 Float_t par[3];
367 par[0]=4.4;
368 par[1]=4.5;
369 par[2]=0.5;
370 gMC->Gsvolu("0SC0","TUBE",idtmed[kC],par,3);
371 z=ppcon[3]+par[2];
372 gMC->Gspos("0SC0",1,"0SUP",0,0,z,0,"ONLY");
373 z += par[2];
374 par[0]=4.4;
375 par[1]=5.1;
376 par[2]=0.05;
377 gMC->Gsvolu("0SC1","TUBE",idtmed[kC],par,3);
378 z += par[2];
379 gMC->Gspos("0SC1",1,"0SUP",0,0,z,0,"ONLY");
380 z=z+par[2];
304618a5 381 par[0]=4.9;
382 par[1]=5.0;
383 par[2]=6.9/2;
d65c9254 384 gMC->Gsvolu("0SC2","TUBE",idtmed[kC],par,3);
385 z += par[2];
386 gMC->Gspos("0SC2",1,"0SUP",0,0,z,0,"ONLY");
387 z += par[2];
304618a5 388 /*
d65c9254 389 Float_t parC[5];
390 parC[0]=0.25;
391 parC[1]=5.1;
392 parC[2]=5.2;
393 parC[3]=5.5;
394 parC[4]=5.6;
395 gMC->Gsvolu("0SC3","CONE",idtmed[kC],parC,5);
396 z += parC[0];
397 gMC->Gspos("0SC3",1,"0SUP",0,0,z,0,"ONLY");
398 z += parC[0];
304618a5 399 par[0]=5
400.5;
d65c9254 401 par[1]=5.6;
402 par[2]=1.2/2;
403 gMC->Gsvolu("0SC4","TUBE",idtmed[kC],par,3);
404 z += par[2];
405 gMC->Gspos("0SC4",1,"0SUP",0,0,z,0,"ONLY");
406 par[0]=5.1;
407 par[1]=5.5;
408 par[2]=1.2/2;
409 gMC->Gsvolu("0SA0","TUBE",idtmed[kAl],par,3);
410 gMC->Gspos("0SA0",1,"0SUP",0,0,z,0,"ONLY");
411 //gvozdi dlia skruchivaniia Al i C parts
412 par[0]=5.75;
413 par[1]=5.78;
414 gMC->Gsvolu("0SN1","TUBE",idtmed[kSteel],par,3);
415 gMC->Gspos("0SN1",1,"0SUP",0,0,z,0,"ONLY");
416 z += par[2];
304618a5 417 */
d65c9254 418 par[0]=3.15;
304618a5 419 par[1]=4.9;
420 par[2]=0.1/2;
d65c9254 421 gMC->Gsvolu("0SA1","TUBE",idtmed[kAl],par,3);
304618a5 422
d65c9254 423 z += par[2];
424 gMC->Gspos("0SA1",1,"0SUP",0,0,z,0,"ONLY");
425 z=z+par[2];
426 par[0]=3.15;
427 par[1]=3.16;
304618a5 428 par[2]=4.5/2;
d65c9254 429 gMC->Gsvolu("0SA2","TUBE",idtmed[kAl],par,3);
430 z += par[2];
431 gMC->Gspos("0SA2",1,"0SUP",0,0,z,0,"ONLY");
432 z=z+par[2];
433 par[0]=3.16; // eta chast' prikruchena k absorberu
434 par[1]=7.5;
304618a5 435 par[2]=0.2;
d65c9254 436 gMC->Gsvolu("0SA3","TUBE",idtmed[kAl],par,3);
437 z += par[2];
438 gMC->Gspos("0SA3",1,"0SUP",0,0,z,0,"ONLY");
439 par[0]=3.16; // gvozdi eta chast' prikruchena k absorberu
440 par[1]=7.5;
441 par[2]=0.01;
442 gMC->Gsvolu("0SN2","TUBE",idtmed[kSteel],par,3);
443 gMC->Gspos("0SN2",1,"0SUP",0,0,z,0,"ONLY");
304618a5 444
d65c9254 445
bc46b572 446}
447//------------------------------------------------------------------------
448void AliSTARTv1::CreateMaterials()
449{
ef51244a 450 Int_t isxfld = gAlice->Field()->Integ();
451 Float_t sxmgmx = gAlice->Field()->Max();
bc46b572 452 Float_t a,z,d,radl,absl,buf[1];
453 Int_t nbuf;
454
455// Scintillator CH
456 Float_t ascin[2]={1.01,12.01};
457 Float_t zscin[2]={1,6};
458 Float_t wscin[2]={1,1};
459 Float_t denscin=1.03;
a94466c5 460//Lucite C(CH3)CO2CH3
461 Float_t alucite[3]={1.01,12.01,15.999};
462 Float_t zlucite[3]={1,6,8};
463 Float_t wlucite[3]={8,5,2};
464 Float_t denlucite=1.16;
465 // PMT glass SiO2
bc46b572 466 Float_t aglass[2]={28.0855,15.9994};
467 Float_t zglass[2]={14.,8.};
468 Float_t wglass[2]={1.,2.};
469 Float_t dglass=2.65;
470// Ceramic 97.2% Al2O3 , 2.8% SiO2
471 Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
472 Float_t aal2o3[2] = { 26.981539,15.9994 };
473 Float_t zal2o3[2] = { 13.,8. };
474 Float_t wal2o3[2] = { 2.,3. };
475 Float_t denscer = 3.6;
476
477// Brass 80% Cu, 20% Zn
478 Float_t abrass[2] = {63.546,65.39};
479 Float_t zbrass[2] = {29,30};
480 Float_t wbrass[2] = {0.8,0.2};
481 Float_t denbrass=8.96;
482
483//Ribber C6H12S
484 Float_t aribber[3] = {12.,1.,32.};
485 Float_t zribber[3] = {6.,1.,16.};
486 Float_t wribber[3] = {6.,12.,1.};
487 Float_t denribber=0.8;
d65c9254 488// Support inside
489 Float_t asupport[2] = {12.,1.};
490 Float_t zsupport[2] = {6.,1.};
491 Float_t wsupport[2] = {1.,1.};
492 Float_t densupport=0.1;
bc46b572 493
494//*** Definition Of avaible START materials ***
495 AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
496 AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
497 AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999);
d65c9254 498 AliMaterial(10, "CarbonPlastic$", 12.01, 6.0, 2.26, 18.8,999);
499 AliMaterial(11, "Aliminium$", 26.98, 13.0, 2.7, 8.9,999);
bc46b572 500
501 AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
502 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
00d6d986 503 char namate[21]="";
bc46b572 504 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
505 acer[0]=a;
506 zcer[0]=z;
507 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
508 acer[1]=a;
509 zcer[1]=z;
510
511 AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
512 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
513 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
514
515 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
a94466c5 516 AliMixture( 8, "Lucite$",alucite,zlucite,denlucite,-3,wlucite);
d65c9254 517 AliMixture( 9, "Penoplast$",asupport,zsupport,densupport,-2,wsupport);
518
bc46b572 519
ef51244a 520 AliMedium(1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
521 AliMedium(2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
522 AliMedium(3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
523 AliMedium(4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
d65c9254 524 AliMedium(6, "Glass$", 4, 1, isxfld, sxmgmx, 10., .01, .1, .003, .003);
ef51244a 525 AliMedium(8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
526 AliMedium(9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
527 AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
a94466c5 528 AliMedium(12, "Lucite$", 8, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
d65c9254 529 AliMedium(13, "CarbonPlastic$", 10, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
530 AliMedium(14, "PenoPlast$", 9, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
531 AliMedium(15, "Aluminium$", 11, 0, isxfld, sxmgmx, 10., .01, 1., .003, .003);
a94466c5 532
9e1a0ddb 533 if(fDebug) cout<<ClassName()<<": ++++++++++++++Medium set++++++++++"<<endl;
bc46b572 534
bc46b572 535}
536//---------------------------------------------------------------------
537void AliSTARTv1::DrawDetector()
538{
539//
540// Draw a shaded view of the Forward multiplicity detector version 0
541//
542
543 //Set ALIC mother transparent
544 gMC->Gsatt("ALIC","SEEN",0);
545 //
546 //Set volumes visible
2ca99a7f 547 // gMC->Gsatt("0ST","SEEN",0);
548 gMC->Gsatt("0INS","SEEN",0);
549 gMC->Gsatt("0PMT","SEEN",1);
550 gMC->Gsatt("0DIV","SEEN",1);
bc46b572 551 //
d65c9254 552 gMC->Gdopt("hide","off");
bc46b572 553 gMC->Gdopt("shad","on");
554 gMC->SetClipBox(".");
555 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
556 gMC->DefaultRange();
affef71b 557 gMC->Gdraw("alic",90,0,0,-35,9.5,.6,0.6);
bc46b572 558 gMC->Gdhead(1111,"T-Zero detector");
559 gMC->Gdopt("hide","off");
560}
561
562//-------------------------------------------------------------------
563void AliSTARTv1::Init()
564{
565// Initialises version 0 of the Forward Multiplicity Detector
566//
567//Int_t *idtmed = gAlice->Idtmed();
568 AliSTART::Init();
2ca99a7f 569 fIdSens1=gMC->VolId("0TOP");
9e1a0ddb 570 if(fDebug) printf("%s: *** START version 0 initialized ***\n",ClassName());
bc46b572 571
572}
573
574//-------------------------------------------------------------------
575
576void AliSTARTv1::StepManager()
577{
578 //
579 // Called for every step in the START Detector
580 //
581 Int_t id,copy,copy1;
582 static Float_t hits[7];
583 static Float_t edep;
584 static Int_t vol[2];
585 TLorentzVector pos;
586
587 TClonesArray &lhits = *fHits;
588
589 if(!gMC->IsTrackAlive()) return; // particle has disappeared
e73d68f2 590 // Float_t charge = gMC->TrackCharge();
591 // if(TMath::Abs(charge)<=0.) return; //take only charged particles
bc46b572 592 id=gMC->CurrentVolID(copy);
593
594
724699e1 595 // Check the sensetive volume
bc46b572 596 if(id==fIdSens1 ) {
597 if(gMC->IsTrackEntering()) {
598 gMC->CurrentVolOffID(2,copy);
2ca99a7f 599 vol[1]=copy;
600 gMC->CurrentVolOffID(3,copy1);
601 vol[0]=copy1;
a94466c5 602
bc46b572 603 gMC->TrackPosition(pos);
604 hits[0] = pos[0];
605 hits[1] = pos[1];
606 hits[2] = pos[2];
a94466c5 607 if(pos[2]<0) vol[0]=2;
608 if(pos[2]>=0) vol[0]=1;
609
bc46b572 610 Float_t etot=gMC->Etot();
611 hits[4]=etot;
ef51244a 612 Int_t iPart= gMC->TrackPid();
613 Int_t partID=gMC->IdFromPDG(iPart);
614 hits[5]=partID;
bc46b572 615 Float_t ttime=gMC->TrackTime();
616 hits[6]=ttime*1e9;
617 edep=0;
618 }
619 if(gMC->IsTrackInside()) {
620 Float_t de=gMC->Edep();
621 edep=edep+de;
f3ed336b 622 }
724699e1 623
624 if(gMC->IsTrackExiting()) {
625 Float_t de=gMC->Edep();
626 edep=edep+de;
627 hits[3]=edep*1e3;
5d12ce38 628 new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
724699e1 629 }
bc46b572 630 }
631//---------------------------------------------------------------------
632}
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