1a8aa6bcad5b772bfc6e38a2b7ba2424d5d492e6
[u/mrichter/AliRoot.git] / FMD / AliFMDv1.cxx
1 /**************************************************************************
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3  *                                                                        *
4  * Author: The ALICE Off-line Project.                                    *
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15
16 /* $Id$ */
17
18  /////////////////////////////////////////////////////////////////////
19 //                                                                 //
20 // Forward Multiplicity detector based on Silicon version 0        //
21 //
22 //Begin Html       
23 /*
24 <img src="gif/AliFMDv0Class.gif">
25 */
26 //End Html
27 //                                                                  //
28 //                                                                  //
29 //////////////////////////////////////////////////////////////////////
30
31 #include <Riostream.h>
32 #include <stdlib.h>
33
34 #include <TClonesArray.h>
35 #include <TDirectory.h>
36 #include <TFile.h>
37 #include <TGeometry.h>
38 #include <TLorentzVector.h>
39 #include <TMath.h>
40 #include <TNode.h>
41 #include <TTUBE.h>
42 #include <TTree.h>
43 #include <TVirtualMC.h>
44
45 #include "AliFMDdigit.h"
46 #include "AliFMDhit.h"
47 #include "AliFMDv0.h"
48 #include "AliFMDv1.h"
49 #include "AliMagF.h"
50 #include "AliRun.h"
51 #include "AliMC.h"
52
53 ClassImp(AliFMDv1)
54
55 //--------------------------------------------------------------------
56 AliFMDv1::AliFMDv1(const char *name, const char *title):
57  AliFMD(name,title)
58 {
59   //
60   // Standart constructor for Forward Multiplicity Detector version 0
61   //
62   fIdSens1=0;
63   fIdSens2=0;
64   fIdSens3=0;
65   fIdSens4=0;
66   fIdSens5=0;
67 //  setBufferSize(128000);
68  }
69 //-------------------------------------------------------------------------
70 void AliFMDv1::CreateGeometry()
71 {
72  //
73   // Create the geometry of Forward Multiplicity Detector version 0
74   //
75   //Detector consists of 6 volumes: 
76   // 1st covered pseudorapidity interval from 3.3 to 2.0
77   // and placed on 65cm in Z-direction;
78   // 2nd - from 2.0 to 1.6 and Z=85 cm;
79   // 3d  - the same pseudorapidity interval as the 1st 
80   // but on the other side from the interaction point z=-65cm;
81   // 4th - simmetricaly with the 2nd : 
82   // pseudorapidity from 2.0 to 1.6, Z=-85cm   
83   // 5th - from 3.6 to 4.7, Z=-270cm
84   // 6th - from 4.5 to 5.5 , Z=-630cm.
85   // Each part has 400mkm Si (sensetive area, detector itself),
86   // 0.75cm of plastic simulated electronics material,
87   // Al support ring 2cm thickness and 1cm width placed on 
88   // the outer radius of each Si disk;
89   //    
90   // begin Html
91   /*
92    <img src="gif/AliFMDv0.gif">
93    */
94   //
95
96
97
98   Int_t *idtmed = fIdtmed->GetArray();
99    
100   Int_t ifmd;
101   Int_t idrotm[999];
102   Float_t zFMD,par[3],ppcon[15];
103   Float_t z[5]={-62.8, -75.2, 83.4, 75.2, 340.};
104   Float_t NylonTube[3]={0.2,0.6,0.45};
105   Float_t zPCB=0.12; Float_t zHoneyComb=0.5; 
106   Float_t zSi=0.03;
107  
108   char nameFMD[5], nameSi[5], nameSector[5], nameRing[5];
109   Char_t nameHoney[5], nameHoneyIn[5], nameHoneyOut[5];
110   Char_t namePCB[5], nameCopper[5], nameChips[5], nameG10[5];
111   Char_t nameLPCB[5], nameLCopper[5], nameLChips[5], nameGL10[5];;
112   Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
113   Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
114   Float_t RinHoneyComb[5] ={ 5.15,16.4,  5.15,16.4,  5.15};
115   Float_t RoutHoneyComb[5]={20.63,34.92,22.3, 32.02,20.63};
116   Float_t zInside;
117   Float_t zCooper=0.01; Float_t zChips=0.01;
118   Float_t yNylonTube[5]={10,20,10,20,10};
119
120
121   AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
122   
123   
124   // Nylon tubes
125    gMC->Gsvolu("GNYL","TUBE", idtmed[1], NylonTube, 3);  //support nylon tube
126    Float_t wideSupport=zSi+3*zPCB+2*NylonTube[2]+zHoneyComb;
127      cout<<" wideSupport "<<wideSupport<<endl;
128
129  for (ifmd=0; ifmd<5; ifmd++)
130     {
131       sprintf(nameFMD,"FMD%d",ifmd+1);
132       ppcon[0]=0;
133       ppcon[1]=360;
134       ppcon[2]=4;
135       
136       ppcon[3]=-wideSupport;
137       ppcon[4]=rin[ifmd]+0.1;
138       ppcon[5]=rout[ifmd]+0.1;
139       
140       ppcon[6]=ppcon[3]+2*zSi+2*zPCB+2*NylonTube[2];
141       ppcon[7]=rin[ifmd]+0.1;
142       ppcon[8]=rout[ifmd]+0.1;
143       
144       ppcon[9]=ppcon[6];
145       ppcon[10]=RinHoneyComb[ifmd]+0.1;
146       ppcon[11]=RoutHoneyComb[ifmd]+0.1;
147
148       ppcon[12]=ppcon[9]+2*zHoneyComb+zPCB;
149       ppcon[13]=RinHoneyComb[ifmd]+0.1;
150       ppcon[14]=RoutHoneyComb[ifmd]+0.1;
151       gMC->Gsvolu(nameFMD,"PCON",idtmed[0],ppcon,15);
152       if (z[ifmd] >0){  
153         zFMD=z[ifmd]+wideSupport;
154         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,0, "ONLY");}
155       else {
156         zFMD=z[ifmd]-wideSupport;
157         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,idrotm[901], "ONLY");}
158      //silicon
159       sprintf(nameSi,"GSI%d",ifmd+1);
160       sprintf(nameSector,"GSC%d",ifmd+1);
161       sprintf(nameRing,"GRN%d",ifmd+1);
162       
163       //honeycomb support
164       sprintf(nameHoney,"GSU%d",ifmd+1);
165       gMC->Gsvolu(nameHoney,"TUBE", idtmed[0], par, 0);  //honeycomb 
166       sprintf(nameHoneyIn,"GHI%d",ifmd+1);
167       gMC->Gsvolu(nameHoneyIn,"TUBE", idtmed[7], par, 0);  //honey comb inside 
168       sprintf(nameHoneyOut,"GHO%d",ifmd+1);
169       gMC->Gsvolu(nameHoneyOut,"TUBE", idtmed[6], par, 0);  //honey comb skin
170       //PCB
171       sprintf(namePCB,"GPC%d",ifmd+1);
172       gMC->Gsvolu(namePCB,"TUBE", idtmed[0], par, 0); //PCB
173       sprintf(nameCopper,"GCO%d",ifmd+1);
174       gMC->Gsvolu(nameCopper,"TUBE", idtmed[3], par, 0);  // Cooper
175       sprintf(nameChips,"GCH%d",ifmd+1);
176       gMC->Gsvolu(nameChips,"TUBE", idtmed[5], par, 0); // Si chips
177       sprintf(nameG10,"G10%d",ifmd+1);
178       gMC->Gsvolu(nameG10,"TUBE", idtmed[2], par, 0);  //G10 plate
179       //last PCB
180       sprintf(nameLPCB,"GPL%d",ifmd+1);
181       gMC->Gsvolu(nameLPCB,"TUBE", idtmed[0], par, 0); //PCB
182       sprintf(nameLCopper,"GCL%d",ifmd+1);
183       gMC->Gsvolu(nameLCopper,"TUBE", idtmed[3], par, 0);  // Cooper
184       sprintf(nameLChips,"GHL%d",ifmd+1);
185       gMC->Gsvolu(nameLChips,"TUBE", idtmed[5], par, 0); // Si chips
186       sprintf(nameGL10,"G1L%d",ifmd+1);
187       gMC->Gsvolu(nameGL10,"TUBE", idtmed[2], par, 0); // Last G10
188       par[0]=rin[ifmd]; // pipe size
189       par[1]=rout[ifmd];
190       par[2]=zSi/2;
191       gMC->Gsvolu(nameSi,"TUBE", idtmed[4], par, 3);
192       zInside=ppcon[3]+par[2];
193        gMC->Gspos(nameSi,ifmd+1,nameFMD,0,0,zInside,0, "ONLY");
194       //PCB 1
195       zInside += par[2]+zPCB/2;
196       par[2]=zPCB/2;
197       gMC->Gsposp(namePCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
198       zInside += zPCB;
199       gMC->Gsposp(namePCB,2,nameFMD,0,0,zInside,0, "ONLY",par,3);
200       Float_t NulonTubeBegin=zInside+2.5*zPCB;
201       par[2]=zPCB/2-0.02;
202       Float_t zInPCB = -zPCB/2+par[2];
203       gMC->Gsposp(nameG10,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
204       zInPCB+=par[2]+zCooper/2 ;
205       par[2]=zCooper/2;
206       gMC->Gsposp(nameCopper,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
207       zInPCB += zCooper/2 + zChips/2;
208       par[2]=zChips/2;
209       gMC->Gsposp(nameChips,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
210       //HoneyComb
211       zHoneyComb=0.8;   
212       par[0] = RinHoneyComb[ifmd];
213       par[1] = RoutHoneyComb[ifmd];
214       par[2] = zHoneyComb/2;
215       zInside += 2*NylonTube[2]+par[2];
216       gMC->Gsposp(nameHoney,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
217       par[2]=0.1/2;
218       Float_t zHoney=-zHoneyComb/2+par[2];
219       gMC->Gsposp(nameHoneyOut,1,nameHoney,0,0,zHoney,0,
220                   "ONLY",par,3); //shkurki
221       zHoney=zHoneyComb/2-par[2];
222       gMC->Gsposp(nameHoneyOut,2,nameHoney,0,0,zHoney,0, "ONLY",par,3);
223       par[2]=(zHoneyComb-2.*0.1)/2; //soty vnutri
224       gMC->Gsposp(nameHoneyIn,1,nameHoney,0,0,0,0, "ONLY",par,3);
225       
226       gMC->Gspos("GNYL",1,nameFMD,0,yNylonTube[ifmd],
227                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
228       gMC->Gspos("GNYL",2,nameFMD,0,-yNylonTube[ifmd],
229                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
230          
231       //last PCB
232       par[0]=RoutHoneyComb[ifmd]-9;
233       par[1]=RoutHoneyComb[ifmd];
234       par[2]=zPCB/2;
235       zInside += zHoneyComb/2+par[2];
236       gMC->Gsposp(nameLPCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
237       
238        par[2]=zPCB/2-0.02;
239        zInPCB = -zPCB/2+par[2];
240        gMC->Gsposp(nameGL10,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
241        zInPCB+=par[2]+zCooper/2 ;
242        par[2]=zCooper/2;
243        gMC->Gsposp(nameLCopper,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
244        zInPCB += zCooper/2 + zChips/2;
245        par[2]=zChips/2;
246        gMC->Gsposp(nameLChips,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
247       
248            
249      //Granularity
250     fSectorsSi1=20;
251     fRingsSi1=256*2;
252     // fRingsSi1=3; // for drawing only
253     fSectorsSi2=40;
254      fRingsSi2=128*2;
255      //  fRingsSi2=3; //for  drawing onl
256     if(ifmd==1||ifmd==3)
257       { 
258         gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
259         gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
260       }
261     else
262       {
263         gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
264         gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
265       }
266     
267     }
268 }    
269
270
271 //------------------------------------------------------------------------
272 void AliFMDv1::CreateMaterials() 
273 {
274  Int_t isxfld   = gAlice->Field()->Integ();
275  Float_t sxmgmx = gAlice->Field()->Max();
276
277  // Plastic CH
278  Float_t aPlastic[2]={1.01,12.01};
279  Float_t zPlastic[2]={1,6};
280  Float_t wPlastic[2]={1,1};
281  Float_t denPlastic=1.03;
282    //
283   //     60% SiO2 , 40% G10FR4 
284  // PC board
285  Float_t apcb[3]  = { 28.0855,15.9994,17.749 };
286  Float_t zpcb[3]  = { 14.,8.,8.875 };
287  Float_t wpcb[3]  = { .28,.32,.4 };
288  Float_t denspcb  = 1.8;
289    //
290  //*** Definition Of avaible FMD materials ***
291  AliMaterial(0, "FMD Air$", 14.61, 7.3, .001205, 30423.,999); 
292  AliMixture(1, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
293  AliMixture(2, "SSD PCB$",   apcb, zpcb, denspcb, 3, wpcb);
294  AliMaterial(3, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
295  AliMaterial(4, "SSD Si$",      28.0855, 14., 2.33, 9.36, 999.);
296  AliMaterial(5, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
297  AliMaterial(6, "SSD C$",       12.011,   6., 2.265,18.8, 999.);
298  AliMaterial(7, "SSD Kapton$", 12.011, 6., 0.01, 31.27, 999.);//honeycomb
299   AliMaterial(8, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
300    
301
302 //**
303  AliMedium(0, "FMD air$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
304  AliMedium(1, "Plastic$", 1, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
305  AliMedium(2, "SSD PCB$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
306  AliMedium(3, "SSD Copper$", 3, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
307  AliMedium(4, "SSD Si$", 4, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
308  AliMedium(5, "SSD Si chip$", 5, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
309  AliMedium(6, "SSD C$", 6, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
310  AliMedium(7, "SSD Kapton$", 7, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
311  AliMedium(8, "SSD G10FR4$", 8, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
312  
313
314
315 }
316 //---------------------------------------------------------------------
317 void AliFMDv1::DrawDetector()
318 {
319 //
320 // Draw a shaded view of the Forward multiplicity detector version 0
321 //
322
323 //Set ALIC mother transparent
324 gMC->Gsatt("ALIC","SEEN",0);
325 //
326 //Set volumes visible
327 gMC->Gsatt("FMD1","SEEN",1);
328 gMC->Gsatt("FMD2","SEEN",1);
329 gMC->Gsatt("FMD3","SEEN",1);
330 gMC->Gsatt("FMD4","SEEN",1);
331 gMC->Gsatt("FMD5","SEEN",1);
332
333 //
334 gMC->Gdopt("hide","on");
335 gMC->Gdopt("shad","on");
336 gMC->SetClipBox(".");
337 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
338 gMC->DefaultRange();
339 gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
340 gMC->Gdhead(1111,"Forward multiplicity detector");
341 gMC->Gdopt("hide","off");
342 }
343 //-------------------------------------------------------------------
344 void AliFMDv1::Init()
345 {
346 // Initialises version 0 of the Forward Multiplicity Detector
347 //
348 AliFMD::Init();
349 fIdSens1=gMC->VolId("GRN1");
350 fIdSens2=gMC->VolId("GRN2");
351 fIdSens3=gMC->VolId("GRN3");
352 fIdSens4=gMC->VolId("GRN4");
353 fIdSens5=gMC->VolId("GRN5");
354 printf("*** FMD version 1 initialized ***\n");
355 }
356
357 //-------------------------------------------------------------------
358
359 void AliFMDv1::StepManager()
360 {
361   //
362   // Called for every step in the Forward Multiplicity Detector
363   //
364   Int_t id,copy,copy1,copy2;
365   static Float_t hits[9];
366   static Int_t vol[3];
367   static Float_t de;
368   TLorentzVector pos;
369   TLorentzVector mom;
370
371
372   TClonesArray &lhits = *fHits;
373   if(!gMC->IsTrackAlive()) return; // particle has disappeared
374
375   Float_t charge = gMC->TrackCharge();
376   if(TMath::Abs(charge)<=0.) return; //take only charged particles
377
378   //  printf(" in StepManeger \n");
379   id=gMC->CurrentVolID(copy);
380   //((TGeant3*)gMC)->Gpcxyz();
381   
382 // Check the sensetive volume
383    if(id==fIdSens1||id==fIdSens2||id==fIdSens3||id==fIdSens4||id==fIdSens5)
384      {
385        if(gMC->IsTrackEntering())
386          {
387            vol[2]=copy;
388            gMC->CurrentVolOffID(1,copy1);
389            vol[1]=copy1;
390            gMC->CurrentVolOffID(2,copy2);
391            vol[0]=copy2;
392
393            gMC->TrackPosition(pos);
394            hits[0]=pos[0];
395            hits[1]=pos[1];
396            hits[2]=pos[2];
397
398            gMC->TrackMomentum(mom);
399            hits[3]=mom[0];
400            hits[4]=mom[1];
401            hits[5]=mom[2];
402
403            Int_t iPart= gMC->TrackPid();
404            Int_t partId=gMC->IdFromPDG(iPart);
405            hits[7]=partId;
406            hits[8]=1e9*gMC->TrackTime();
407            de=0.;
408          }
409        if(gMC->IsTrackInside()){
410            de=de+1000.*gMC->Edep();
411        }
412        
413        if(gMC->IsTrackExiting()
414           ||gMC->IsTrackDisappeared()||
415           gMC->IsTrackStop())
416          {
417              hits[6]=de+1000.*gMC->Edep();
418       new(lhits[fNhits++]) AliFMDhit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
419          } // IsTrackExiting()
420      }
421   }
422 //--------------------------------------------------------------------------
423
424 void AliFMDv1::Response( Float_t Edep)
425 {
426   Float_t I=1.664*0.04*2.33/22400; // = 0.69e-6;
427   Float_t chargeOnly=Edep/I;
428   //Add noise ~500electrons
429   Int_t charge=500;
430   if (Edep>0)
431      charge=Int_t(gRandom->Gaus(chargeOnly,500));       
432  }   
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