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0d5ea2e8 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// Forward Multiplicity detector based on Silicon version 0 //
18//
19//Begin Html
20/*
21<img src="gif/AliFMDv0Class.gif">
22*/
23//End Html
24// //
25// //
26//////////////////////////////////////////////////////////////////////
27#include <TMath.h>
28#include <TGeometry.h>
29#include <TTUBE.h>
30#include <TFile.h>
31#include <TTree.h>
32#include <TNode.h>
33#include <TClonesArray.h>
34#include <TLorentzVector.h>
35#include <TDirectory.h>
36#include "AliFMDv2.h"
37#include "AliFMDv0.h"
38#include "AliRun.h"
39#include <Riostream.h>
40#include "AliMagF.h"
41#include "AliFMDhit.h"
42#include "AliFMDdigit.h"
43#include <stdlib.h>
44
45ClassImp(AliFMDv2)
46
47//--------------------------------------------------------------------
48AliFMDv2::AliFMDv2(const char *name, const char *title):
49 AliFMD(name,title)
50{
51 //
52 // Standart constructor for Forward Multiplicity Detector version 0
53 //
54 fIdSens1=0;
55 fIdSens2=0;
56 fIdSens3=0;
57 fIdSens4=0;
58 fIdSens5=0;
59// setBufferSize(128000);
60}
61//-------------------------------------------------------------------------
62void AliFMDv2::CreateGeometry()
63{
64 //
65 // Create the geometry of Forward Multiplicity Detector version 0
66 //
67 //Detector consists of 6 volumes:
68 // 1st covered pseudorapidity interval from 3.3 to 2.0
69 // and placed on 65cm in Z-direction;
70 // 2nd - from 2.0 to 1.6 and Z=85 cm;
71 // 3d - the same pseudorapidity interval as the 1st
72 // but on the other side from the interaction point z=-65cm;
73 // 4th - simmetricaly with the 2nd :
74 // pseudorapidity from 2.0 to 1.6, Z=-85cm
75 // 5th - from 3.6 to 4.7, Z=-270cm
76 // 6th - from 4.5 to 5.5 , Z=-630cm.
77 // Each part has 400mkm Si (sensetive area, detector itself),
78 // 0.75cm of plastic simulated electronics material,
79 // Al support ring 2cm thickness and 1cm width placed on
80 // the outer radius of each Si disk;
81 //
82 // begin Html
83 /*
84 <img src="gif/AliFMDv0.gif">
85 */
86 //
87
88 Int_t *idtmed = fIdtmed->GetArray();
89
90 Int_t ifmd;
91 Int_t idrotm[999];
92 Float_t zFMD,par[3],ppcon[5];
93 //ppcon1[15],ppcon2[15],ppcon3[15],ppcon4[15],ppcon5[15];
94 Float_t z[5]={62.8, 75.2, -83.4, -75.2, -340.};
95 Float_t NylonTube[3]={0.2,0.6,0.45};
96 Float_t zPCB=0.12; Float_t zHoneyComb=0.5;
97 Float_t zSi=0.03;
98
99//-------------------------------------------------------------------
100 // FMD
101 //------------------------------------------------------------------
102 // cout<<" !!!!!!!!!!!New FMD geometry !!!!!!!!!"<<endl;
103
104
105 char nameFMD[5], nameSi[5], nameSector[5], nameRing[5];
106 Char_t nameHoney[5], nameHoneyIn[5], nameHoneyOut[5];
107 Char_t namePCB[5], nameCopper[5], nameChips[5], nameG10[5];
108 Char_t nameLPCB[5], nameLCopper[5], nameLChips[5], nameGL10[5];;
109 Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
110 Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
111 Float_t RinHoneyComb[5] ={ 5.15,16.4, 5.15,16.4, 5.15};
112 Float_t RoutHoneyComb[5]={20.63,34.92,22.3, 32.02,20.63};
113 Float_t zInside;
114 Float_t zCooper=0.01; Float_t zChips=0.01;
115 Float_t yNylonTube[5]={10,20,10,20,10};
116
117
118 AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
119
120
121 // Nylon tubes
122 gMC->Gsvolu("GNYL","TUBE", idtmed[1], NylonTube, 3); //support nylon tube
123 Float_t wideSupport=zSi+3*zPCB+2*NylonTube[2]+zHoneyComb;
124 // cout<<" wideSupport "<<wideSupport<<endl;
125
126 for (ifmd=0; ifmd<5; ifmd++)
127 {
128 sprintf(nameFMD,"FMD%d",ifmd+1);
129 ppcon[0]=0;
130 ppcon[1]=360;
131 ppcon[2]=4;
132
133 // ppcon[3]=z[ifmd];
134 ppcon[3]=-wideSupport/2.;
135 ppcon[4]=rin[ifmd];
136 ppcon[5]=rout[ifmd];
137
138 ppcon[6]=ppcon[3]+zSi+2*zPCB+2*NylonTube[2];
139 ppcon[7]=rin[ifmd];
140 ppcon[8]=rout[ifmd];
141
142 ppcon[9]=ppcon[6];
143 ppcon[10]=RinHoneyComb[ifmd];
144 ppcon[11]=RoutHoneyComb[ifmd];
145
146 ppcon[12]=ppcon[9]+zHoneyComb+zPCB;
147 ppcon[13]=RinHoneyComb[ifmd];
148 ppcon[14]=RoutHoneyComb[ifmd];
149 zFMD=z[ifmd]+wideSupport/2.;
150 // cout<<" Si "<<ifmd+1<<" "<<zFMD<<" "<<ppcon[12]<<endl;
151 gMC->Gsvolu(nameFMD,"PCON",idtmed[0],ppcon,15);
152 if (z[ifmd] >0){
153 gMC->Gspos(nameFMD,1,"ALIC",0,0,z[ifmd],0, "ONLY");}
154 else {
155 gMC->Gspos(nameFMD,1,"ALIC",0,0,z[ifmd],idrotm[901], "ONLY");}
156 //silicon
157 sprintf(nameSi,"GSI%d",ifmd+1);
158 sprintf(nameSector,"GSC%d",ifmd+1);
159 sprintf(nameRing,"GRN%d",ifmd+1);
160 //honeycomb support
161 sprintf(nameHoney,"GSU%d",ifmd+1);
162 gMC->Gsvolu(nameHoney,"TUBE", idtmed[0], par, 0); //honeycomb
163 sprintf(nameHoneyIn,"GHI%d",ifmd+1);
164 gMC->Gsvolu(nameHoneyIn,"TUBE", idtmed[7], par, 0); //honey comb inside
165 sprintf(nameHoneyOut,"GHO%d",ifmd+1);
166 gMC->Gsvolu(nameHoneyOut,"TUBE", idtmed[6], par, 0); //honey comb skin
167 //PCB
168 sprintf(namePCB,"GPC%d",ifmd+1);
169 gMC->Gsvolu(namePCB,"TUBE", idtmed[0], par, 0); //PCB
170 sprintf(nameCopper,"GCO%d",ifmd+1);
171 gMC->Gsvolu(nameCopper,"TUBE", idtmed[3], par, 0); // Cooper
172 sprintf(nameChips,"GCH%d",ifmd+1);
173 gMC->Gsvolu(nameChips,"TUBE", idtmed[5], par, 0); // Si chips
174 sprintf(nameG10,"G10%d",ifmd+1);
175 gMC->Gsvolu(nameG10,"TUBE", idtmed[2], par, 0); //G10 plate
176 //last PCB
177 sprintf(nameLPCB,"GPL%d",ifmd+1);
178 gMC->Gsvolu(nameLPCB,"TUBE", idtmed[0], par, 0); //PCB
179 sprintf(nameLCopper,"GCL%d",ifmd+1);
180 gMC->Gsvolu(nameLCopper,"TUBE", idtmed[3], par, 0); // Cooper
181 sprintf(nameLChips,"GHL%d",ifmd+1);
182 gMC->Gsvolu(nameLChips,"TUBE", idtmed[5], par, 0); // Si chips
183 sprintf(nameGL10,"G1L%d",ifmd+1);
184 gMC->Gsvolu(nameGL10,"TUBE", idtmed[2], par, 0); //G10 plate
185
186
187 par[0]=rin[ifmd]; // pipe size
188 par[1]=rout[ifmd];
189 par[2]=zSi/2;
190 gMC->Gsvolu(nameSi,"TUBE", idtmed[4], par, 3);
191 printf ("rin %f rout %f ZFMD %f\n",par[0],par[1],z[ifmd]);
192 zInside=ppcon[3]+par[2];
193 // cout<<" zInside "<<zInside<<endl;
194 gMC->Gspos(nameSi,ifmd+1,nameFMD,0,0,zInside,0, "ONLY");
195 //PCB 1
196 zInside += par[2]+zPCB/2;
197 par[2]=zPCB/2;
198 // cout<<"FMD "<<ifmd<<" zInside PCB1 = "<<zInside<<endl;
199 gMC->Gsposp(namePCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
200 zInside += zPCB;
201 // cout<<"FMD "<<ifmd<<" zInside PCB2 = "<<zInside<<endl;
202 gMC->Gsposp(namePCB,2,nameFMD,0,0,zInside,0, "ONLY",par,3);
203 Float_t NulonTubeBegin=zInside+2*zPCB;
204 par[2]=zPCB/2-0.02;
205 Float_t zInPCB = -zPCB/2+par[2];
206 gMC->Gsposp(nameG10,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
207 zInPCB+=par[2]+zCooper/2 ;
208 par[2]=zCooper/2;
209 gMC->Gsposp(nameCopper,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
210 zInPCB += zCooper/2 + zChips/2;
211 par[2]=zChips/2;
212 gMC->Gsposp(nameChips,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
213 //HoneyComb
214 zHoneyComb=0.8;
215 par[0] = RinHoneyComb[ifmd];
216 par[1] = RoutHoneyComb[ifmd];
217 par[2] = zHoneyComb/2;
218 // cout<<"FMD "<<ifmd<<" zInside before HoneyComb = "<<zInside<<" par[2] "<<par[2]<<endl;
219 zInside += 2*NylonTube[2]+par[2];
220 // cout<<" zInside HoneyComb"<<zInside<<endl;
221 gMC->Gsposp(nameHoney,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
222 par[2]=0.1/2;
223 Float_t zHoney=-zHoneyComb/2+par[2];
224 // cout<<" zHoney shurka 1 "<<zHoney <<endl;
225 gMC->Gsposp(nameHoneyOut,1,nameHoney,0,0,zHoney,0,
226 "ONLY",par,3); //shkurki
227 zHoney=zHoneyComb/2-par[2];
228 // cout<<" zHoney shurka 2 "<<zHoney <<endl;
229 gMC->Gsposp(nameHoneyOut,2,nameHoney,0,0,zHoney,0, "ONLY",par,3);
230 par[2]=(zHoneyComb-2.*0.1)/2; //soty vnutri
231 gMC->Gsposp(nameHoneyIn,1,nameHoney,0,0,0,0, "ONLY",par,3);
232
233 gMC->Gspos("GNYL",1,nameFMD,0,yNylonTube[ifmd],
234 NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
235 gMC->Gspos("GNYL",2,nameFMD,0,-yNylonTube[ifmd],
236 NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
237
238 //last PCB
239 par[0]=RoutHoneyComb[ifmd]-9;
240 par[1]=RoutHoneyComb[ifmd];
241 par[2]=zPCB/2;
242 // cout<<" rin "<<par[0]<<" rout "<<par[1]<<endl;
243 zInside += zHoneyComb/2+par[2];
244 gMC->Gsposp(nameLPCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
245
246 par[2]=zPCB/2-0.02;
247 zInPCB = -zPCB/2+par[2];
248 gMC->Gsposp(nameGL10,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
249 zInPCB+=par[2]+zCooper/2 ;
250 par[2]=zCooper/2;
251 gMC->Gsposp(nameLCopper,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
252 zInPCB += zCooper/2 + zChips/2;
253 par[2]=zChips/2;
254 gMC->Gsposp(nameLChips,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
255
256 /*
257 if (ifmd==3) {
258 par[0]=0.1;
259 par[1]=7.;
260 par[2]=0.1;
261 gMC->Gsvolu("GST1","BOX ", idtmed[6], par, 3); //support carbon stick
262 gMC->Gspos("GST1",1,nameFMD,0.,49.2-par[1],z[3]-0.7,0,"ONLY");
263 gMC->Gspos("GST1",2,nameFMD,0.,-49.2+par[1],z[3]-0.7,0,"ONLY");
264
265 Float_t pSupportCone[5];
266 pSupportCone[0]=1.5;
267 pSupportCone[1]=34.4;
268 pSupportCone[2]=34.5;
269 pSupportCone[3]=30.;
270 pSupportCone[4]=29.9;
271 gMC->Gsvolu("GCY1","CONE", idtmed[6],pSupportCone , 5); //support carbon stick
272 gMC->Gspos("GCY1",1,nameFMD,0.,0.,z[3]+1.5,0,"ONLY");
273
274 }
275 if (ifmd==2) {
276 par[0]=0.1;
277 par[1]=1.3;
278 par[2]=0.1;
279 gMC->Gsvolu("GST3","BOX ", idtmed[6], par, 3); //support carbon stick
280 gMC->Gspos("GST3",1,nameFMD,0.,23.-par[1],z[2]+2.1,0,"ONLY");
281 gMC->Gspos("GST3",2,nameFMD,0.,-23.+par[1],z[2]+2.1,0,"ONLY");
282
283 Float_t pSupportCone[5];
284 pSupportCone[0]=1.5;
285 pSupportCone[1]=30.;
286 pSupportCone[2]=29.9;
287 pSupportCone[3]=21.;
288 pSupportCone[4]=20.9;
289 gMC->Gsvolu("GCY2","CONE", idtmed[6],pSupportCone , 5); //support carbon stick
290 gMC->Gspos("GCY2",1,nameFMD,0.,0.,z[2]+1.5,0,"ONLY");
291
292 }
293 */
294
295 //Granularity
296 fSectorsSi1=20;
297 fRingsSi1=256*3;
298 //fRingsSi1=3; // for drawing only
299 fSectorsSi2=40;
300 fRingsSi2=128*3;
301 // fRingsSi2=3; //for drawing onl
302 if(ifmd==1||ifmd==3)
303 {
304 gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
305 gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
306 }
307 else
308 {
309 gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
310 gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
311 }
312
313 }
314}
315
316
317//------------------------------------------------------------------------
318
319
320void AliFMDv2::CreateMaterials()
321{
322 Int_t isxfld = gAlice->Field()->Integ();
323 Float_t sxmgmx = gAlice->Field()->Max();
324
325 // Plastic CH
326 Float_t aPlastic[2]={1.01,12.01};
327 Float_t zPlastic[2]={1,6};
328 Float_t wPlastic[2]={1,1};
329 Float_t denPlastic=1.03;
330 // 60% SiO2 , 40% G10FR4
331 // PC board
332 Float_t apcb[3] = { 28.0855,15.9994,17.749 };
333 Float_t zpcb[3] = { 14.,8.,8.875 };
334 Float_t wpcb[3] = { .28,.32,.4 };
335 Float_t denspcb = 1.8;
336 //
337
338 //*** Definition Of avaible FMD materials ***
339 AliMaterial(0, "FMD Air$", 14.61, 7.3, .001205, 30423.,999);
340 AliMixture(1, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
341 AliMixture(2, "SSD PCB$", apcb, zpcb, denspcb, 3, wpcb);
342 AliMaterial(3, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
343 AliMaterial(4, "SSD Si$", 28.0855, 14., 2.33, 9.36, 999.);
344 AliMaterial(5, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
345 AliMaterial(6, "SSD C$", 12.011, 6., 2.265,18.8, 999.);
346 AliMaterial(7, "SSD Kapton$", 12.011, 6., 0.01, 31.27, 999.);//honeycomb
347 AliMaterial(8, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
348
349
350//**
351 AliMedium(0, "FMD air$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
352 AliMedium(1, "Plastic$", 1, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
353 AliMedium(2, "SSD PCB$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
354 AliMedium(3, "SSD Copper$", 3, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
355 AliMedium(4, "SSD Si$", 4, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
356 AliMedium(5, "SSD Si chip$", 5, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
357 AliMedium(6, "SSD C$", 6, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
358 AliMedium(7, "SSD Kapton$", 7, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
359 AliMedium(8, "SSD G10FR4$", 8, 0,isxfld, sxmgmx, 10., .01, 1., .003, .003);
360
361
362
363}
364
365//---------------------------------------------------------------------
366void AliFMDv2::DrawDetector()
367{
368//
369// Draw a shaded view of the Forward multiplicity detector version 0
370//
371
372
373//Set ALIC mother transparent
374gMC->Gsatt("ALIC","SEEN",0);
375//
376//Set volumes visible
377gMC->Gsatt("FMD1","SEEN",1);
378gMC->Gsatt("FMD2","SEEN",1);
379gMC->Gsatt("FMD3","SEEN",1);
380gMC->Gsatt("FMD4","SEEN",1);
381gMC->Gsatt("FMD5","SEEN",1);
382
383//
384gMC->Gdopt("hide","on");
385gMC->Gdopt("shad","on");
386gMC->SetClipBox(".");
387gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
388gMC->DefaultRange();
389gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
390gMC->Gdhead(1111,"Forward multiplicity detector");
391gMC->Gdopt("hide","off");
392}
393//-------------------------------------------------------------------
394void AliFMDv2::Init()
395{
396// Initialises version 0 of the Forward Multiplicity Detector
397//
398AliFMD::Init();
399fIdSens1=gMC->VolId("GRN1");
400fIdSens2=gMC->VolId("GRN2");
401fIdSens3=gMC->VolId("GRN3");
402fIdSens4=gMC->VolId("GRN4");
403fIdSens5=gMC->VolId("GRN5");
404printf("*** FMD version 2 initialized ***\n");
405}
406
407//-------------------------------------------------------------------
408
409void AliFMDv2::StepManager()
410{
411 //
412 // Called for every step in the Forward Multiplicity Detector
413 //
414 Int_t id,copy,copy1,copy2;
415 static Float_t hits[9];
416 static Int_t vol[3];
417 static Float_t de;
418 TLorentzVector pos;
419 TLorentzVector mom;
420
421
422 TClonesArray &lhits = *fHits;
423 if(!gMC->IsTrackAlive()) return; // particle has disappeared
424
425 Float_t charge = gMC->TrackCharge();
426 if(TMath::Abs(charge)<=0.) return; //take only charged particles
427
428 // printf(" in StepManeger \n");
429 id=gMC->CurrentVolID(copy);
430
431// Check the sensetive volume
432 if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5)
433 {
434 if(gMC->IsTrackEntering())
435 {
436 vol[2]=copy;
437 gMC->CurrentVolOffID(1,copy1);
438 vol[1]=copy1;
439 gMC->CurrentVolOffID(2,copy2);
440 vol[0]=copy2;
441
442 gMC->TrackPosition(pos);
443 hits[0]=pos[0];
444 hits[1]=pos[1];
445 hits[2]=pos[2];
446
447 gMC->TrackMomentum(mom);
448 hits[3]=mom[0];
449 hits[4]=mom[1];
450 hits[5]=mom[2];
451
452 Int_t iPart= gMC->TrackPid();
453 Int_t partId=gMC->IdFromPDG(iPart);
454 hits[7]=partId;
455 hits[8]=1e9*gMC->TrackTime();
456 de=0.;
457 }
458 if(gMC->IsTrackInside()){
459 de=de+1000.*gMC->Edep();
460 }
461
462 if(gMC->IsTrackExiting()
463 ||gMC->IsTrackDisappeared()||
464 gMC->IsTrackStop())
465 {
466 hits[6]=de+1000.*gMC->Edep();
467 new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
468 } // IsTrackExiting()
469 }
470 }
471
472//--------------------------------------------------------------------------
473
474void AliFMDv2::Response( Float_t Edep)
475{
476 Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6;
477 Float_t chargeOnly=Edep/I;
478 //Add noise ~500electrons
479 Int_t charge=500;
480 if (Edep>0)
481 charge=Int_t(gRandom->Gaus(chargeOnly,500));
482 }
483
484
485
486
487
488
489