New Version from Alla
[u/mrichter/AliRoot.git] / START / AliSTARTv0.cxx
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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
16/*
17$Log$
971579f6 18Revision 1.6 1999/11/12 15:04:00 fca
19Modifications from A.Maevskaya
20
82fc3fb3 21Revision 1.5 1999/09/29 09:24:29 fca
22Introduction of the Copyright and cvs Log
23
971579f6 24*/
4c039060 25
6ca40650 26/////////////////////////////////////////////////////////////////////
27// //
28// START ( T-zero) detector version 0 //
29//
30//Begin Html
31/*
32<img src="gif/AliSTARTv0Class.gif">
33*/
34//End Html
35// //
36// //
37//////////////////////////////////////////////////////////////////////
38
39#include <TMath.h>
40#include <TGeometry.h>
41#include <TTUBE.h>
42#include <TNode.h>
43
44#include "AliSTARTv0.h"
45#include "AliRun.h"
46#include "AliMC.h"
971579f6 47#include "AliSTARThit.h"
6ca40650 48
49#include <iostream.h>
50#include <fstream.h>
51
52//#include "TGeant3.h"
53#include <stdlib.h>
54
55ClassImp(AliSTARTv0)
56
57//--------------------------------------------------------------------
58AliSTARTv0::AliSTARTv0(const char *name, const char *title):
59 AliSTART(name,title)
60{
61 //
62 // Standart constructor for START Detector version 0
63 //
64 fIdSens1=0;
65// setBufferSize(128000);
66}
67//-------------------------------------------------------------------------
68void AliSTARTv0::CreateGeometry()
69{
70 //
71 // Create the geometry of START Detector version 0
72 //
73 // begin Html
74 /*
75 <img src="gif/AliSTARTv0.gif">
76 */
77 //
78
79
971579f6 80 Int_t *idtmed = fIdtmed->GetArray();
6ca40650 81
82 Int_t is;
83 Int_t idrotm[999];
84 Float_t x,y,z;
85
86 Float_t pstart[3]={4.5,10.7,5.3};
6ca40650 87 Float_t ppmt[3]={0.,1.3,3.5};
88 Float_t pdivider[3]={0.,1.2,1.75};
89 Float_t pdiv2[3]={0.,1.2,1.25};
90 Float_t pdiv1[3]={0.6,1.2,0.5};
91 Float_t ptop[3]={0.,1.3,1.5};
92 Float_t pbot[3]={0.6,1.2,0.1};
93 Float_t pglass[3]={1.2,1.3,2.};
94 Float_t pcer[3]={0.9,1.1,0.09};
95 Float_t psteel[3]={0.9,1.1,0.01};
96 Float_t ppins[3]={0.6,1.2,0.014};
97 Float_t phole[3]={0.6,1.2,0.015};
98 Float_t pknob[3]={0.5,0.6,0.4};
99 Float_t pknob_vac[3]={0.,0.5,0.4};
100 Float_t pknob_bot[3]={0.,0.6,0.05};
101 Float_t pribber[3] = {0.,1.2,2.413/2.};
102 Float_t presist[3] = {0.,1.2,0.087/2.};
103
104 Float_t zdet=75.;
105 //-------------------------------------------------------------------
106 // START volume
107 //-------------------------------------------------------------------
971579f6 108
6ca40650 109 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
971579f6 110 gMC->Gsvolu("STRT","TUBE",idtmed[1],pstart,3);
6ca40650 111 gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY");
112 gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY");
113
114//START interior
971579f6 115 gMC->Gsvolu("PMT ","TUBE",idtmed[3],ppmt,3);
116 gMC->Gsvolu("DIVI","TUBE",idtmed[3],pdivider,3);
6ca40650 117
118// first ring: 13 units of Scintillator+PMT+divider
971579f6 119 Double_t dang1 = 2*TMath::Pi()/12;
120 for (is=1; is<=12; is++)
121 {
122 x=6.5*TMath::Sin(is*dang1);
123 y=6.5*TMath::Cos(is*dang1);
124 z=-pstart[2]+ppmt[2];
125 gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
126 printf("z PMT %f\n",z);
127 z=z+ppmt[2]+pdiv2[2];
128 printf(" is %d, z Divider %f\n",is,z);
129 gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
130 }
131 /*
6ca40650 132//second ring: 20 units of Scintillator+PMT+divider
971579f6 133 Double_t dang2 = 2*TMath::Pi()/26;
134 Double_t dang3 = 2*TMath::Pi()/20;
135 for (is=14; is<=33;is++)
136 {
137 x=9.3*TMath::Sin(dang2+(is-13)*dang3);
138 y=9.3*TMath::Cos(dang2+(is-13)*dang3);
6ca40650 139 z=-pstart[2]+ppmt[2];
6ca40650 140 gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
971579f6 141 z=z+ppmt[2]+pdiv2[2];
6ca40650 142 gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
971579f6 143 }
144 */
6ca40650 145// PMT
146
971579f6 147 // Entry window (glass)
148 gMC->Gsvolu("PTOP","TUBE",idtmed[6],ptop,3);
149 z=-ppmt[2]+ptop[2];
150 gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY");
151 // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
152 // Bottom glass
153 gMC->Gsvolu("PBOT","TUBE",idtmed[6],pbot,3);
154 z=ppmt[2]-pbot[2];
155 printf("Z bottom %f\n",z);
156 gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY");
157 // Side cylinder glass
158 gMC->Gsvolu("POUT","TUBE",idtmed[6],pglass,3);
159 z=ppmt[2]-pglass[2];
160 // printf("Z glass %f\n",z);
161 gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY");
162 //PMT electrodes support structure
163 gMC->Gsvolu("PCER","TUBE",idtmed[4],pcer,3);
164 gMC->Gsvolu("PSTE","TUBE",idtmed[8],psteel,3);
165 z=-ppmt[2]+2*ptop[2]+0.3;;
166 // printf("Z Cer 1 %f\n",z);
167 for (is=1; is<=15; is++)
6ca40650 168 {
971579f6 169 z=z+psteel[2]+pcer[2];
170 gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY");
171 z=z+psteel[2]+pcer[2];
172 gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY");
173 }
174
175 // Divider
176 // Knob at the bottom of PMT baloon
177
178 gMC->Gsvolu("KNOB","TUBE",idtmed[6],pknob,3);
179 z=-pdivider[2]+pknob[2];
180 // printf("zknob %f\n",z);
181 gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY");
182 gMC->Gsvolu("KNBO","TUBE",idtmed[6],pknob_bot,3);
183 z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
184 // printf("knobbot %f\n",z);
185 gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY");
186 gMC->Gsvolu("KNVA","TUBE",idtmed[6],pknob_vac,3);
187 z=-pdivider[2]+pknob_vac[2];
188 // printf("knobvac %f\n",z);
189 gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY");
190 //Steel pins + pin holes
191 gMC->Gsvolu("PINS","TUBE",idtmed[8],ppins,3);
192 z=-pdivider[2]+ppins[2];
193 gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY");
194 gMC->Gsvolu("HOLE","TUBE",idtmed[11],phole,3);
195 z=-pdivider[2]+2*ppins[2]+phole[2];
196 gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY");
197
198 //Socket
199 gMC->Gsvolu("DIV1","TUBE",idtmed[4],pdiv1,3);
200 z=-pdivider[2]+pdiv1[2];
201 gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY");
202 //Resistors
203 gMC->Gsvolu("DIV2","TUBE",idtmed[1],pdiv2,3);
204 z=pdivider[2]-pdiv2[2];
205 gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY");
206 gMC->Gsvolu("DRES","TUBE",idtmed[4],presist,3);
207 z=-pdiv2[2]+presist[2];
208 gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY");
209 gMC->Gsvolu("DRIB","TUBE",idtmed[9],pribber,3);
210 z=pdiv2[2]-pribber[2];
211 gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY");
212 // printf("z DRIB %f\n",z);
213
214
6ca40650 215}
216//------------------------------------------------------------------------
217void AliSTARTv0::CreateMaterials()
218{
219 Int_t ISXFLD = gAlice->Field()->Integ();
220 Float_t SXMGMX = gAlice->Field()->Max();
221 Float_t a,z,d,radl,absl,buf[1];
222 Int_t nbuf;
223
224// Scintillator CH
82fc3fb3 225 Float_t ascin[2]={1.01,12.01};
226 Float_t zscin[2]={1,6};
227 Float_t wscin[2]={1,1};
228 Float_t denscin=1.03;
6ca40650 229// PMT glass SiO2
971579f6 230 Float_t aglass[2]={28.0855,15.9994};
231 Float_t zglass[2]={14.,8.};
232 Float_t wglass[2]={1.,2.};
233 Float_t dglass=2.65;
6ca40650 234// Ceramic 97.2% Al2O3 , 2.8% SiO2
971579f6 235 Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
236 Float_t aal2o3[2] = { 26.981539,15.9994 };
237 Float_t zal2o3[2] = { 13.,8. };
238 Float_t wal2o3[2] = { 2.,3. };
239 Float_t denscer = 3.6;
6ca40650 240
241// Brass 80% Cu, 20% Zn
242 Float_t abrass[2] = {63.546,65.39};
243 Float_t zbrass[2] = {29,30};
244 Float_t wbrass[2] = {0.8,0.2};
245 Float_t denbrass=8.96;
246
247//Ribber C6H12S
248 Float_t aribber[3] = {12.,1.,32.};
249 Float_t zribber[3] = {6.,1.,16.};
250 Float_t wribber[3] = {6.,12.,1.};
251 Float_t denribber=0.8;
971579f6 252 /*
253// Definition Cherenkov parameters
254 Float_t ppckov[14] = { 5.63e-9,5.77e-9,5.9e-9,6.05e-9,6.2e-9,6.36e-9,6.52e-9,6.7e-9,6.88e-9,7.08e-9,7.3e-9,7.51e-9,7.74e-9,8e-9 };
255 Float_t rindex_quarz[14] = { 1.528309,1.533333,
256 1.538243,1.544223,1.550568,1.55777,
257 1.565463,1.574765,1.584831,1.597027,
258 1.611858,1.6277,1.6472,1.6724 };
6ca40650 259
971579f6 260 Float_t absco_quarz[14] = { 20.126,16.27,13.49,11.728,9.224,8.38,7.44,7.17,
261 6.324,4.483,1.6,.323,.073,0. };
262 */
263 // Int_t *idtmed = fIdtmed->GetArray()-999;
264
265 // TGeant3 *geant3 = (TGeant3*) gMC;
266
6ca40650 267//*** Definition Of avaible START materials ***
971579f6 268 AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
269 AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
270 AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999);
271
272 AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
273 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
274 char namate[21];
275 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
276 acer[0]=a;
277 zcer[0]=z;
278 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
279 acer[1]=a;
280 zcer[1]=z;
281
282 AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
283 AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
284 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
285
286 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
287
288
289 AliMedium(1, "START Air$", 2, 0, ISXFLD, SXMGMX, 10., .1, 1., .003, .003);
290 AliMedium(2, "Scintillator$", 5, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003);
291 AliMedium(3, "Vacuum$", 1, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
292 AliMedium(4, "Ceramic$", 9, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
293 AliMedium(6, "Glass$", 4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
294 AliMedium(8, "Steel$", 0, 0, ISXFLD, SXMGMX, 1., .001, 1., .001, .001);
295 AliMedium(11, "Brass $", 6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
296 AliMedium(9, "Ribber $", 7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
6ca40650 297
971579f6 298// geant3->Gsckov(idtmed[2105], 14, ppckov, absco_quarz, effic_all,rindex_quarz);
6ca40650 299
300}
301//---------------------------------------------------------------------
77ee006c 302void AliSTARTv0::DrawModule()
6ca40650 303{
304//
305// Draw a shaded view of the Forward multiplicity detector version 0
306//
971579f6 307
308 //Set ALIC mother transparent
309 gMC->Gsatt("ALIC","SEEN",0);
310 //
311 //Set volumes visible
312 gMC->Gsatt("STRT","SEEN",0);
313 gMC->Gsatt("PMT ","SEEN",1);
314 gMC->Gsatt("DIVI","SEEN",1);
315 //
316 gMC->Gdopt("hide","on");
317 gMC->Gdopt("shad","on");
318 gMC->SetClipBox(".");
319 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
320 gMC->DefaultRange();
321 gMC->Gdraw("alic",40,30,0,12,9.5,.7,0.7);
322 gMC->Gdhead(1111,"T-Zero detector");
323 gMC->Gdopt("hide","off");
6ca40650 324}
971579f6 325
6ca40650 326//-------------------------------------------------------------------
327void AliSTARTv0::Init()
328{
971579f6 329// Initialises version 0 of the Forward Multiplicity Detector
330//
331//Int_t *idtmed = gAlice->Idtmed();
ca7295b2 332 AliSTART::Init();
333 fIdSens1=gMC->VolId("PTOP");
334 printf("*** START version 0 initialized ***\n");
6ca40650 335
336}
337
338//-------------------------------------------------------------------
339
340void AliSTARTv0::StepManager()
341{
342 //
343 // Called for every step in the START Detector
344 //
345 Int_t id,copy,copy1;
346 static Float_t hits[7];
347 static Float_t edep;
348 static Int_t vol[2];
ca7295b2 349 TLorentzVector pos;
971579f6 350
6ca40650 351 TClonesArray &lhits = *fHits;
6ca40650 352
353 if(!gMC->IsTrackAlive()) return; // particle has disappeared
354 Float_t charge = gMC->TrackCharge();
355 if(TMath::Abs(charge)<=0.) return; //take only charged particles
971579f6 356 // gMC->Gpcxyz();
357 id=gMC->CurrentVolID(copy);
358
359
360 // printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
361 // Check the sensetive volume
362 if(id==fIdSens1 ) {
363 if(gMC->IsTrackEntering()) {
364 gMC->CurrentVolOffID(2,copy);
365 vol[0]=copy;
366 gMC->CurrentVolOffID(1,copy1);
367 vol[1]=copy1;
368 gMC->TrackPosition(pos);
369 hits[0] = pos[0];
370 hits[1] = pos[1];
371 hits[2] = pos[2];
372 Float_t etot=gMC->Etot();
373 hits[4]=etot;
374 Int_t part= gMC->TrackPid();
375 hits[5]=part;
376 Float_t ttime=gMC->TrackTime();
377 hits[6]=ttime*1e9;
378 edep=0;
6ca40650 379 }
971579f6 380 if(gMC->IsTrackInside()) {
381 Float_t de=gMC->Edep();
382 edep=edep+de;
383 // printf ("E deposition %f\n",edep);
384 // for (i=0; i<=6; i++){
385 // printf(" HITS on START inside %f\n",hits[i]); }
6ca40650 386 }
971579f6 387 if(gMC->IsTrackExiting()) {
388 Float_t de=gMC->Edep();
389 edep=edep+de;
390 hits[3]=edep*1e3;
391
392 // for (i=0; i<=6; i++){
393 // printf(" HITS on START Exit %f\n",hits[i]); }
394 //for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);}
395
396 new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->CurrentTrack(),vol,hits);
397 }
398 }
399//---------------------------------------------------------------------
400}
401
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