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[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$Log$
18*/
19
6ca40650 20/////////////////////////////////////////////////////////////////////
21// //
22// START ( T-zero) detector version 0 //
23//
24//Begin Html
25/*
26<img src="gif/AliSTARTv0Class.gif">
27*/
28//End Html
29// //
30// //
31//////////////////////////////////////////////////////////////////////
32
33#include <TMath.h>
34#include <TGeometry.h>
35#include <TTUBE.h>
36#include <TNode.h>
37
38#include "AliSTARTv0.h"
39#include "AliRun.h"
40#include "AliMC.h"
41
42#include <iostream.h>
43#include <fstream.h>
44
45//#include "TGeant3.h"
46#include <stdlib.h>
47
48ClassImp(AliSTARTv0)
49
50//--------------------------------------------------------------------
51AliSTARTv0::AliSTARTv0(const char *name, const char *title):
52 AliSTART(name,title)
53{
54 //
55 // Standart constructor for START Detector version 0
56 //
57 fIdSens1=0;
58// setBufferSize(128000);
59}
60//-------------------------------------------------------------------------
61void AliSTARTv0::CreateGeometry()
62{
63 //
64 // Create the geometry of START Detector version 0
65 //
66 // begin Html
67 /*
68 <img src="gif/AliSTARTv0.gif">
69 */
70 //
71
72
73 Int_t *idtmed = fIdtmed->GetArray()-2099;
74
75 Int_t is;
76 Int_t idrotm[999];
77 Float_t x,y,z;
78
79 Float_t pstart[3]={4.5,10.7,5.3};
80 // Float_t pscin[3]={0.,2.54/2.,1.5};
81 Float_t ppmt[3]={0.,1.3,3.5};
82 Float_t pdivider[3]={0.,1.2,1.75};
83 Float_t pdiv2[3]={0.,1.2,1.25};
84 Float_t pdiv1[3]={0.6,1.2,0.5};
85 Float_t ptop[3]={0.,1.3,1.5};
86 Float_t pbot[3]={0.6,1.2,0.1};
87 Float_t pglass[3]={1.2,1.3,2.};
88 Float_t pcer[3]={0.9,1.1,0.09};
89 Float_t psteel[3]={0.9,1.1,0.01};
90 Float_t ppins[3]={0.6,1.2,0.014};
91 Float_t phole[3]={0.6,1.2,0.015};
92 Float_t pknob[3]={0.5,0.6,0.4};
93 Float_t pknob_vac[3]={0.,0.5,0.4};
94 Float_t pknob_bot[3]={0.,0.6,0.05};
95 Float_t pribber[3] = {0.,1.2,2.413/2.};
96 Float_t presist[3] = {0.,1.2,0.087/2.};
97
98 Float_t zdet=75.;
99 //-------------------------------------------------------------------
100 // START volume
101 //-------------------------------------------------------------------
102
103 AliMatrix(idrotm[901], 90., 0., 90., 90., 180., 0.);
104 gMC->Gsvolu("STRT","TUBE",idtmed[2101-1],pstart,3);
105 gMC->Gspos("STRT",1,"ALIC",0.,0.,zdet,0,"ONLY");
106 gMC->Gspos("STRT",2,"ALIC",0.,0.,-zdet,idrotm[901],"ONLY");
107
108//START interior
109 // gMC->Gsvolu("SCIN","TUBE",idtmed[2102-1],pscin,3);
110 gMC->Gsvolu("PMT ","TUBE",idtmed[2103-1],ppmt,3);
111 gMC->Gsvolu("DIVI","TUBE",idtmed[2103-1],pdivider,3);
112
113// first ring: 13 units of Scintillator+PMT+divider
114 for (is=1; is<=13; is++)
115 {
116 x=6.5*TMath::Sin(is*2*3.1415/13);
117 y=6.5*TMath::Cos(is*2*3.1415/13);
118 z=-pstart[2]+ppmt[2];
119 printf(" is %d x %f y %f r%f\n",is,x,y,sqrt(x*x+y*y));
120 // gMC->Gspos("SCIN",is,"STRT",x,y,z,0,"ONLY");
121 // z=z+pscin[2]+ppmt[2];
122 gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
123 z=ppmt[2]+pdivider[2];
124 printf(" is %d, z Divider %f\n",is,z);
125 gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
126 }
127//second ring: 20 units of Scintillator+PMT+divider
128 for (is=14; is<=33;is++)
129 {
130 x=9.3*TMath::Sin(2.*3.1415/26+(is-13)*2*3.1415/20);
131 y=9.3*TMath::Cos(2.*3.1315/26+(is-13)*2*3.1415/20);
132 z=-pstart[2]+ppmt[2];
133 // gMC->Gspos("SCIN",is,"STRT",x,y,z,0,"ONLY");
134 //z=z+pscin[2]+ppmt[2];
135 gMC->Gspos("PMT ",is,"STRT",x,y,z,0,"ONLY");
136 z=ppmt[2]+pdiv2[2];
137 gMC->Gspos("DIVI",is,"STRT",x,y,z,0,"ONLY");
138 }
139// PMT
140
141// Entry window (glass)
142 gMC->Gsvolu("PTOP","TUBE",idtmed[2106-1],ptop,3);
143 z=-ppmt[2]+ptop[2];
144 gMC->Gspos("PTOP",1,"PMT ",0,0,z,0,"ONLY");
145 // printf("Z PTOP %f -ppmt[2] %f ptop[2] %f\n",z,-ppmt[2],ptop[2]);
146// Bottom glass
147 gMC->Gsvolu("PBOT","TUBE",idtmed[2106-1],pbot,3);
148 z=ppmt[2]-pbot[2];
149 printf("Z bottom %f\n",z);
150 gMC->Gspos("PBOT",1,"PMT ",0,0,z,0,"ONLY");
151// Side cylinder glass
152 gMC->Gsvolu("POUT","TUBE",idtmed[2106-1],pglass,3);
153 z=ppmt[2]-pglass[2];
154// printf("Z glass %f\n",z);
155 gMC->Gspos("POUT",1,"PMT ",0,0,z,0,"ONLY");
156//PMT electrodes support structure
157 gMC->Gsvolu("PCER","TUBE",idtmed[2104-1],pcer,3);
158 gMC->Gsvolu("PSTE","TUBE",idtmed[2108-1],psteel,3);
159 z=-ppmt[2]+2*ptop[2]+0.3;;
160// printf("Z Cer 1 %f\n",z);
161 for (is=1; is<=15; is++)
162 {
163 z=z+psteel[2]+pcer[2];
164 gMC->Gspos("PCER",is,"PMT",0,0,z,0,"ONLY");
165 z=z+psteel[2]+pcer[2];
166 gMC->Gspos("PSTE",is,"PMT",0,0,z,0,"ONLY");
167 }
168
169// Divider
170// Knob at the bottom of PMT baloon
171 gMC->Gsvolu("KNOB","TUBE",idtmed[2106-1],pknob,3);
172 z=-pdivider[2]+pknob[2];
173// printf("zknob %f\n",z);
174 gMC->Gspos("KNOB",1,"DIVI",0,0,z,0,"ONLY");
175 gMC->Gsvolu("KNBO","TUBE",idtmed[2106-1],pknob_bot,3);
176 z=-pdivider[2]+2*pknob[2]+pknob_bot[2];
177// printf("knobbot %f\n",z);
178 gMC->Gspos("KNBO",1,"DIVI ",0,0,z,0,"ONLY");
179 gMC->Gsvolu("KNVA","TUBE",idtmed[2106-1],pknob_vac,3);
180 z=-pdivider[2]+pknob_vac[2];
181// printf("knobvac %f\n",z);
182 gMC->Gspos("KNVA",1,"DIVI",0,0,z,0,"ONLY");
183 //Steel pins + pin holes
184 gMC->Gsvolu("PINS","TUBE",idtmed[2108-1],ppins,3);
185 z=-pdivider[2]+ppins[2];
186 gMC->Gspos("PINS",1,"DIVI",0,0,z,0,"ONLY");
187 gMC->Gsvolu("HOLE","TUBE",idtmed[2111-1],phole,3);
188 z=-pdivider[2]+2*ppins[2]+phole[2];
189 gMC->Gspos("HOLE",1,"DIVI",0,0,z,0,"ONLY");
190
191//Socket
192 gMC->Gsvolu("DIV1","TUBE",idtmed[2104-1],pdiv1,3);
193 z=-pdivider[2]+pdiv1[2];
194 gMC->Gspos("DIV1",1,"DIVI",0,0,z,0,"ONLY");
195//Resistors
196 gMC->Gsvolu("DIV2","TUBE",idtmed[2101-1],pdiv2,3);
197 z=pdivider[2]-pdiv2[2];
198 gMC->Gspos("DIV2",1,"DIVI",0,0,z,0,"ONLY");
199 gMC->Gsvolu("DRES","TUBE",idtmed[2104-1],presist,3);
200 z=-pdiv2[2]+presist[2];
201 gMC->Gspos("DRES",1,"DIV2",0,0,z,0,"ONLY");
202 gMC->Gsvolu("DRIB","TUBE",idtmed[2109-1],pribber,3);
203 z=pdiv2[2]-pribber[2];
204 gMC->Gspos("DRIB",1,"DIV2",0,0,z,0,"ONLY");
205// printf("z DRIB %f\n",z);
206
207}
208//------------------------------------------------------------------------
209void AliSTARTv0::CreateMaterials()
210{
211 Int_t ISXFLD = gAlice->Field()->Integ();
212 Float_t SXMGMX = gAlice->Field()->Max();
213 Float_t a,z,d,radl,absl,buf[1];
214 Int_t nbuf;
215
216// Scintillator CH
217 // Float_t ascin[2]={1.01,12.01};
218 // Float_t zscin[2]={1,6};
219 // Float_t wscin[2]={1,1};
220 // Float_t denscin=1.03;
221// PMT glass SiO2
222 Float_t aglass[2]={28.0855,15.9994};
223 Float_t zglass[2]={14.,8.};
224 Float_t wglass[2]={1.,2.};
225 Float_t dglass=2.65;
226// Ceramic 97.2% Al2O3 , 2.8% SiO2
227 Float_t acer[2],zcer[2],wcer[2]={0.972,0.028};
228 Float_t aal2o3[2] = { 26.981539,15.9994 };
229 Float_t zal2o3[2] = { 13.,8. };
230 Float_t wal2o3[2] = { 2.,3. };
231 Float_t denscer = 3.6;
232
233// Brass 80% Cu, 20% Zn
234 Float_t abrass[2] = {63.546,65.39};
235 Float_t zbrass[2] = {29,30};
236 Float_t wbrass[2] = {0.8,0.2};
237 Float_t denbrass=8.96;
238
239//Ribber C6H12S
240 Float_t aribber[3] = {12.,1.,32.};
241 Float_t zribber[3] = {6.,1.,16.};
242 Float_t wribber[3] = {6.,12.,1.};
243 Float_t denribber=0.8;
244
245
246// AliMC* gMC = AliMC::GetMC();
247
248 // Int_t *idtmed = gAlice->Idtmed();
249 // Int_t imat;
250
251//*** Definition Of avaible START materials ***
252 AliMaterial(0, "START Steel$", 55.850,26.,7.87,1.76,999);
253 AliMaterial(1, "START Vacuum$", 1.e-16,1.e-16,1.e-16,1.e16,999);
254 AliMaterial(2, "START Air$", 14.61, 7.3, .001205, 30423.,999);
255
c4cef9e5 256 AliMixture( 3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
6ca40650 257 AliMixture( 4, "PMT glass $",aglass,zglass,dglass,-2,wglass);
258 char namate[21];
259 gMC->Gfmate((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
260 acer[0]=a;
261 zcer[0]=z;
262 gMC->Gfmate((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
263 acer[1]=a;
264 zcer[1]=z;
265
266 AliMixture( 9, "Ceramic $", acer, zcer, denscer, 2, wcer);
267 // AliMixture( 5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
268 AliMixture( 6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
269
270 AliMixture( 7, "Ribber $",aribber,zribber,denribber,-3,wribber);
271
272
273
274//**
275 AliMedium(1, "START Air$", 2, 0, ISXFLD, SXMGMX, 10., .1, 1., .003, .003);
276 // AliMedium(2102, "Scintillator$", 5, 1, ISXFLD, SXMGMX, 10., .01, 1., .003, .003);
277 AliMedium(3, "Vacuum$", 1, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
278 AliMedium(4, "Ceramic$", 9, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
279 AliMedium(6, "Glass$", 4, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
280 AliMedium(8, "Steel$", 0, 0, ISXFLD, SXMGMX, 1., .001, 1., .001, .001);
281 AliMedium(11, "Brass $", 6, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
282 AliMedium(9, "Ribber $", 7, 0, ISXFLD, SXMGMX, 10., .01, .1, .003, .003);
283
284
285}
286//---------------------------------------------------------------------
77ee006c 287void AliSTARTv0::DrawModule()
6ca40650 288{
289//
290// Draw a shaded view of the Forward multiplicity detector version 0
291//
292
6ca40650 293//Set ALIC mother transparent
294gMC->Gsatt("ALIC","SEEN",0);
295//
296//Set volumes visible
297gMC->Gsatt("STRT","SEEN",0);
298//gMC->Gsatt("SCIN","SEEN",1);
299gMC->Gsatt("PMT ","SEEN",1);
300gMC->Gsatt("DIVI","SEEN",1);
301//
302gMC->Gdopt("hide","on");
303gMC->Gdopt("shad","on");
304gMC->SetClipBox(".");
305gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
306gMC->DefaultRange();
307gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
308gMC->Gdhead(1111,"T-Zero detector");
309gMC->Gdopt("hide","off");
310}
311//-------------------------------------------------------------------
312void AliSTARTv0::Init()
313{
ca7295b2 314 // Initialises version 0 of the Forward Multiplicity Detector
315 //
316
317 //Int_t *idtmed = gAlice->Idtmed();
318 AliSTART::Init();
319 fIdSens1=gMC->VolId("PTOP");
320 printf("*** START version 0 initialized ***\n");
6ca40650 321
322}
323
324//-------------------------------------------------------------------
325
326void AliSTARTv0::StepManager()
327{
328 //
329 // Called for every step in the START Detector
330 //
331 Int_t id,copy,copy1;
332 static Float_t hits[7];
333 static Float_t edep;
334 static Int_t vol[2];
ca7295b2 335 TLorentzVector pos;
6ca40650 336
337 TClonesArray &lhits = *fHits;
338 //AliMC* gMC=AliMC::GetMC();
339 // TGeant3* geant3= (TGeant3*)gMC;
340
341 if(!gMC->IsTrackAlive()) return; // particle has disappeared
342 Float_t charge = gMC->TrackCharge();
343 if(TMath::Abs(charge)<=0.) return; //take only charged particles
344 // gMC->Gpcxyz();
345 id=gMC->CurrentVolID(copy);
346
347
348// printf("igauto %d\n",gMC->ctrak->igauto);
349// printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
350// Check the sensetive volume
351 if(id==fIdSens1 )
352 {
353 if(gMC->IsTrackEntering())
354 {
355 gMC->CurrentVolOffID(2,copy);
356 vol[0]=copy;
357 gMC->CurrentVolOffID(1,copy1);
358 vol[1]=copy1;
359 gMC->TrackPosition(pos);
360 hits[0] = pos[0];
361 hits[1] = pos[1];
362 hits[2] = pos[2];
363 Float_t etot=gMC->Etot();
364 hits[4]=etot;
365 Int_t part= gMC->TrackPid();
366 hits[5]=part;
367 Float_t ttime=gMC->TrackTime();
368 hits[6]=ttime*1e9;
369 edep=0;
370 // Float_t xV=geant3->Gckine()->vert[0];
371 //Float_t yV=geant3->Gckine()->vert[1];
372 //Float_t zV=geant3->Gckine()->vert[2];
373 //Float_t tl=gMC -> TrackLength();
374 // if(hits[6]<2.4){
375 // for (i=0; i<=6; i++){
376 // printf(" HITS on START entr %f\n",hits[i]);}
377 //}
378 }
379 if(gMC->IsTrackInside())
380 {
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]); }
386 }
387 if(gMC->IsTrackExiting())
388 {
389 Float_t de=gMC->Edep();
390 edep=edep+de;
391 hits[3]=edep*1e3;
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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