FMD/AliFMDv0.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 <TGeometry.h>
  35 #include <TLorentzVector.h>
  36 #include <TMath.h>
  37 #include <TNode.h>
  38 #include <TTUBE.h>
  39 #include <TLorentzVector.h>
  40
  41 #include "AliFMDv0.h"
  42 #include "AliMagF.h"
  43 #include "AliRndm.h"
  44 #include "AliRun.h"
  45 #include "AliFMDhit.h"
  46
  47 ClassImp(AliFMDv0)
  48
  49 //--------------------------------------------------------------------
  50 AliFMDv0::AliFMDv0(const char *name, const char *title):
  51  AliFMD(name,title)
  52 {
  53   //
  54   // Standart constructor for Forward Multiplicity Detector version 0
  55   //
  56   fIdSens1=0;
  57   fIdSens2=0;
  58   fIdSens3=0;
  59   fIdSens4=0;
  60   fIdSens5=0;
  61 //  setBufferSize(128000);
  62 }
  63 //-------------------------------------------------------------------------
  64
  65 void AliFMDv0::CreateGeometry()
  66 {
  67 //
  68   // Create the geometry of Forward Multiplicity Detector version 0
  69   //
  70   //Detector consists of 6 volumes:
  71   // 1st covered pseudorapidity interval from 3.3 to 2.0
  72   // and placed on 65cm in Z-direction;
  73   // 2nd - from 2.0 to 1.6 and Z=85 cm;
  74   // 3d  - the same pseudorapidity interval as the 1st
  75   // but on the other side from the interaction point z=-65cm;
  76   // 4th - simmetricaly with the 2nd :
  77   // pseudorapidity from 2.0 to 1.6, Z=-85cm
  78   // 5th - from 3.6 to 4.7, Z=-270cm
  79   // 6th - from 4.5 to 5.5 , Z=-630cm.
  80   // Each part has 400mkm Si (sensetive area, detector itself),
  81   // 0.75cm of plastic simulated electronics material,
  82   // Al support ring 2cm thickness and 1cm width placed on
  83   // the outer radius of each Si disk;
  84   //
  85   // begin Html
  86   /*
  87    <img src="gif/AliFMDv0.gif">
  88    */
  89   //
  90
  91
  92
  93   Int_t *idtmed = fIdtmed->GetArray();
  94
  95   Int_t ifmd;
  96   Int_t idrotm[999];
  97   Float_t zFMD,par[3],ppcon[15];
  98   Float_t z[5]={-62.8, -75.2, 83.4, 75.2, 340.};
  99   Float_t NylonTube[3]={0.2,0.6,0.45};
 100   Float_t zPCB=0.12; Float_t zHoneyComb=0.5;
 101   Float_t zSi=0.03;
 102
 103   char nameFMD[5], nameSi[5], nameSector[5], nameRing[5];
 104   Char_t nameHoney[5], nameHoneyIn[5], nameHoneyOut[5];
 105   Char_t namePCB[5], nameCopper[5], nameChips[5], nameG10[5];
 106   Char_t nameLPCB[5], nameLCopper[5], nameLChips[5], nameGL10[5];;
 107   Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
 108   Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
 109   Float_t RinHoneyComb[5] ={ 5.15,16.4,  5.15,16.4,  5.15};
 110   Float_t RoutHoneyComb[5]={20.63,34.92,22.3, 32.02,20.63};
 111   Float_t zInside;
 112   Float_t zCooper=0.01; Float_t zChips=0.01;
 113   Float_t yNylonTube[5]={10,20,10,20,10};
 114
 115
 116   AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
 117
 118
 119   // Nylon tubes
 120    gMC->Gsvolu("GNYL","TUBE", idtmed[1], NylonTube, 3);  //support nylon tube
 121    Float_t wideSupport=zSi+3*zPCB+2*NylonTube[2]+zHoneyComb;
 122      cout<<" wideSupport "<<wideSupport<<endl;
 123
 124  for (ifmd=0; ifmd<5; ifmd++)
 125     {
 126       sprintf(nameFMD,"FMD%d",ifmd+1);
 127       ppcon[0]=0;
 128       ppcon[1]=360;
 129       ppcon[2]=4;
 130
 131       ppcon[3]=-wideSupport;
 132       ppcon[4]=rin[ifmd]+0.1;
 133       ppcon[5]=rout[ifmd]+0.1;
 134
 135       ppcon[6]=ppcon[3]+2*zSi+2*zPCB+2*NylonTube[2];
 136       ppcon[7]=rin[ifmd]+0.1;
 137       ppcon[8]=rout[ifmd]+0.1;
 138
 139       ppcon[9]=ppcon[6];
 140       ppcon[10]=RinHoneyComb[ifmd]+0.1;
 141       ppcon[11]=RoutHoneyComb[ifmd]+0.1;
 142
 143       ppcon[12]=ppcon[9]+2*zHoneyComb+zPCB;
 144       ppcon[13]=RinHoneyComb[ifmd]+0.1;
 145       ppcon[14]=RoutHoneyComb[ifmd]+0.1;
 146       gMC->Gsvolu(nameFMD,"PCON",idtmed[0],ppcon,15);
 147       if (z[ifmd] >0){
 148         zFMD=z[ifmd]+wideSupport;
 149         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,0, "ONLY");}
 150       else {
 151         zFMD=z[ifmd]-wideSupport;
 152         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,idrotm[901], "ONLY");}
 153      //silicon
 154       sprintf(nameSi,"GSI%d",ifmd+1);
 155       sprintf(nameSector,"GSC%d",ifmd+1);
 156       sprintf(nameRing,"GRN%d",ifmd+1);
 157
 158       //honeycomb support
 159       sprintf(nameHoney,"GSU%d",ifmd+1);
 160       gMC->Gsvolu(nameHoney,"TUBE", idtmed[0], par, 0);  //honeycomb
 161       sprintf(nameHoneyIn,"GHI%d",ifmd+1);
 162       gMC->Gsvolu(nameHoneyIn,"TUBE", idtmed[7], par, 0);  //honey comb inside
 163       sprintf(nameHoneyOut,"GHO%d",ifmd+1);
 164       gMC->Gsvolu(nameHoneyOut,"TUBE", idtmed[6], par, 0);  //honey comb skin
 165       //PCB
 166       sprintf(namePCB,"GPC%d",ifmd+1);
 167       gMC->Gsvolu(namePCB,"TUBE", idtmed[0], par, 0); //PCB
 168       sprintf(nameCopper,"GCO%d",ifmd+1);
 169       gMC->Gsvolu(nameCopper,"TUBE", idtmed[3], par, 0);  // Cooper
 170       sprintf(nameChips,"GCH%d",ifmd+1);
 171       gMC->Gsvolu(nameChips,"TUBE", idtmed[5], par, 0); // Si chips
 172       sprintf(nameG10,"G10%d",ifmd+1);
 173       gMC->Gsvolu(nameG10,"TUBE", idtmed[2], par, 0);  //G10 plate
 174       //last PCB
 175       sprintf(nameLPCB,"GPL%d",ifmd+1);
 176       gMC->Gsvolu(nameLPCB,"TUBE", idtmed[0], par, 0); //PCB
 177       sprintf(nameLCopper,"GCL%d",ifmd+1);
 178       gMC->Gsvolu(nameLCopper,"TUBE", idtmed[3], par, 0);  // Cooper
 179       sprintf(nameLChips,"GHL%d",ifmd+1);
 180       gMC->Gsvolu(nameLChips,"TUBE", idtmed[5], par, 0); // Si chips
 181       sprintf(nameGL10,"G1L%d",ifmd+1);
 182       gMC->Gsvolu(nameGL10,"TUBE", idtmed[2], par, 0); // Last G10
 183       par[0]=rin[ifmd]; // pipe size
 184       par[1]=rout[ifmd];
 185       par[2]=zSi/2;
 186       gMC->Gsvolu(nameSi,"TUBE", idtmed[4], par, 3);
 187       zInside=ppcon[3]+par[2];
 188        gMC->Gspos(nameSi,ifmd+1,nameFMD,0,0,zInside,0, "ONLY");
 189       //PCB 1
 190       zInside += par[2]+zPCB/2;
 191       par[2]=zPCB/2;
 192       gMC->Gsposp(namePCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 193       zInside += zPCB;
 194       gMC->Gsposp(namePCB,2,nameFMD,0,0,zInside,0, "ONLY",par,3);
 195       Float_t NulonTubeBegin=zInside+2.5*zPCB;
 196       par[2]=zPCB/2-0.02;
 197       Float_t zInPCB = -zPCB/2+par[2];
 198       gMC->Gsposp(nameG10,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 199       zInPCB+=par[2]+zCooper/2 ;
 200       par[2]=zCooper/2;
 201       gMC->Gsposp(nameCopper,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 202       zInPCB += zCooper/2 + zChips/2;
 203       par[2]=zChips/2;
 204       gMC->Gsposp(nameChips,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 205       //HoneyComb
 206       zHoneyComb=0.8;
 207       par[0] = RinHoneyComb[ifmd];
 208       par[1] = RoutHoneyComb[ifmd];
 209       par[2] = zHoneyComb/2;
 210       zInside += 2*NylonTube[2]+par[2];
 211       gMC->Gsposp(nameHoney,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 212       par[2]=0.1/2;
 213       Float_t zHoney=-zHoneyComb/2+par[2];
 214       gMC->Gsposp(nameHoneyOut,1,nameHoney,0,0,zHoney,0,
 215                   "ONLY",par,3); //shkurki
 216       zHoney=zHoneyComb/2-par[2];
 217       gMC->Gsposp(nameHoneyOut,2,nameHoney,0,0,zHoney,0, "ONLY",par,3);
 218       par[2]=(zHoneyComb-2.*0.1)/2; //soty vnutri
 219       gMC->Gsposp(nameHoneyIn,1,nameHoney,0,0,0,0, "ONLY",par,3);
 220
 221       gMC->Gspos("GNYL",1,nameFMD,0,yNylonTube[ifmd],
 222                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
 223       gMC->Gspos("GNYL",2,nameFMD,0,-yNylonTube[ifmd],
 224                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
 225
 226       //last PCB
 227       par[0]=RoutHoneyComb[ifmd]-9;
 228       par[1]=RoutHoneyComb[ifmd];
 229       par[2]=zPCB/2;
 230       zInside += zHoneyComb/2+par[2];
 231       gMC->Gsposp(nameLPCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 232
 233        par[2]=zPCB/2-0.02;
 234        zInPCB = -zPCB/2+par[2];
 235        gMC->Gsposp(nameGL10,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 236        zInPCB+=par[2]+zCooper/2 ;
 237        par[2]=zCooper/2;
 238        gMC->Gsposp(nameLCopper,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 239        zInPCB += zCooper/2 + zChips/2;
 240        par[2]=zChips/2;
 241        gMC->Gsposp(nameLChips,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 242
 243
 244      //Granularity
 245        fSectorsSi1=20;
 246        fRingsSi1=256*2;
 247     // fRingsSi1=3; // for drawing only
 248        fSectorsSi2=40;
 249        fRingsSi2=128*2;
 250      //  fRingsSi2=3; //for  drawing onl
 251     if(ifmd==1||ifmd==3)
 252       {
 253         gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
 254         gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
 255       }
 256     else
 257       {
 258         gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
 259         gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
 260       }
 261
 262     }
 263 }
 264
 265
 266 //------------------------------------------------------------------------
 267 void AliFMDv0::CreateMaterials()
 268 {
 269  Int_t isxfld   = gAlice->Field()->Integ();
 270  Float_t sxmgmx = gAlice->Field()->Max();
 271
 272  // Plastic CH
 273  Float_t aPlastic[2]={1.01,12.01};
 274  Float_t zPlastic[2]={1,6};
 275  Float_t wPlastic[2]={1,1};
 276  Float_t denPlastic=1.03;
 277    //
 278   //     60% SiO2 , 40% G10FR4
 279  // PC board
 280  Float_t apcb[3]  = { 28.0855,15.9994,17.749 };
 281  Float_t zpcb[3]  = { 14.,8.,8.875 };
 282  Float_t wpcb[3]  = { .28,.32,.4 };
 283  Float_t denspcb  = 1.8;
 284    //
 285  //*** Definition Of avaible FMD materials ***
 286  AliMaterial(0, "FMD Air$", 14.61, 7.3, .001205, 30423.,999);
 287  AliMixture(1, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
 288  AliMixture(2, "SSD PCB$",   apcb, zpcb, denspcb, 3, wpcb);
 289  AliMaterial(3, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
 290  AliMaterial(4, "SSD Si$",      28.0855, 14., 2.33, 9.36, 999.);
 291  AliMaterial(5, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
 292  AliMaterial(6, "SSD C$",       12.011,   6., 2.265,18.8, 999.);
 293  AliMaterial(7, "SSD Kapton$", 12.011, 6., 0.01, 31.27, 999.);//honeycomb
 294   AliMaterial(8, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
 295
 296
 297 //**
 298  AliMedium(0, "FMD air$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 299  AliMedium(1, "Plastic$", 1, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 300  AliMedium(2, "SSD PCB$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 301  AliMedium(3, "SSD Copper$", 3, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 302  AliMedium(4, "SSD Si$", 4, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 303  AliMedium(5, "SSD Si chip$", 5, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 304  AliMedium(6, "SSD C$", 6, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 305  AliMedium(7, "SSD Kapton$", 7, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 306  AliMedium(8, "SSD G10FR4$", 8, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 307
 308
 309
 310 }
 311 //---------------------------------------------------------------------
 312 void AliFMDv0::DrawDetector()
 313 {
 314 //
 315 // Draw a shaded view of the Forward multiplicity detector version 0
 316 //
 317
 318
 319 //Set ALIC mother transparent
 320 gMC->Gsatt("ALIC","SEEN",0);
 321 //
 322 //Set volumes visible
 323 gMC->Gsatt("FMD0","SEEN",1);
 324 gMC->Gsatt("FMD1","SEEN",1);
 325 gMC->Gsatt("FMD2","SEEN",1);
 326 gMC->Gsatt("FMD3","SEEN",1);
 327 gMC->Gsatt("FMD4","SEEN",1);
 328 gMC->Gsatt("FMD5","SEEN",1);
 329
 330 //
 331 gMC->Gdopt("hide","on");
 332 gMC->Gdopt("shad","on");
 333 gMC->SetClipBox(".");
 334 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
 335 gMC->DefaultRange();
 336 gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
 337 gMC->Gdhead(1111,"Forward multiplicity detector");
 338 gMC->Gdopt("hide","off");
 339 }
 340 //-------------------------------------------------------------------
 341 void AliFMDv0::Init()
 342 {
 343 // Initialises version 0 of the Forward Multiplicity Detector
 344 //
 345 AliFMD::Init();
 346 fIdSens1=gMC->VolId("GRN1");
 347 fIdSens2=gMC->VolId("GRN2");
 348 fIdSens3=gMC->VolId("GRN3");
 349 fIdSens4=gMC->VolId("GRN4");
 350 fIdSens5=gMC->VolId("GRN5");
 351 if (fDebug) printf("*** FMD version 0 initialized ***\n");
 352 }
 353
 354 //-------------------------------------------------------------------
 355
 356 void AliFMDv0::StepManager()
 357 {
 358   //
 359   // Called for every step in the Forward Multiplicity Detector
 360   //
 361 }
 362