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 #include <TVirtualMC.h>
  41
  42 #include "AliFMDv0.h"
  43 #include "AliMagF.h"
  44 #include "AliRndm.h"
  45 #include "AliRun.h"
  46 #include "AliFMDhit.h"
  47
  48 ClassImp(AliFMDv0)
  49
  50 //--------------------------------------------------------------------
  51 AliFMDv0::AliFMDv0(const char *name, const char *title):
  52  AliFMD(name,title)
  53 {
  54   //
  55   // Standart constructor for Forward Multiplicity Detector version 0
  56   //
  57   fIdSens1=0;
  58   fIdSens2=0;
  59   fIdSens3=0;
  60   fIdSens4=0;
  61   fIdSens5=0;
  62 //  setBufferSize(128000);
  63 }
  64 //-------------------------------------------------------------------------
  65
  66 void AliFMDv0::CreateGeometry()
  67 {
  68 //
  69   // Create the geometry of Forward Multiplicity Detector version 0
  70   //
  71   //Detector consists of 6 volumes:
  72   // 1st covered pseudorapidity interval from 3.3 to 2.0
  73   // and placed on 65cm in Z-direction;
  74   // 2nd - from 2.0 to 1.6 and Z=85 cm;
  75   // 3d  - the same pseudorapidity interval as the 1st
  76   // but on the other side from the interaction point z=-65cm;
  77   // 4th - simmetricaly with the 2nd :
  78   // pseudorapidity from 2.0 to 1.6, Z=-85cm
  79   // 5th - from 3.6 to 4.7, Z=-270cm
  80   // 6th - from 4.5 to 5.5 , Z=-630cm.
  81   // Each part has 400mkm Si (sensetive area, detector itself),
  82   // 0.75cm of plastic simulated electronics material,
  83   // Al support ring 2cm thickness and 1cm width placed on
  84   // the outer radius of each Si disk;
  85   //
  86   // begin Html
  87   /*
  88    <img src="gif/AliFMDv0.gif">
  89    */
  90   //
  91
  92
  93
  94   Int_t *idtmed = fIdtmed->GetArray();
  95
  96   Int_t ifmd;
  97   Int_t idrotm[999];
  98   Float_t zFMD,par[3],ppcon[15];
  99   Float_t z[5]={-62.8, -75.2, 83.4, 75.2, 340.};
 100   Float_t NylonTube[3]={0.2,0.6,0.45};
 101   Float_t zPCB=0.12; Float_t zHoneyComb=0.5;
 102   Float_t zSi=0.03;
 103
 104   char nameFMD[5], nameSi[5], nameSector[5], nameRing[5];
 105   Char_t nameHoney[5], nameHoneyIn[5], nameHoneyOut[5];
 106   Char_t namePCB[5], nameCopper[5], nameChips[5], nameG10[5];
 107   Char_t nameLPCB[5], nameLCopper[5], nameLChips[5], nameGL10[5];;
 108   Float_t rin[5]={4.2,15.4,4.2,15.4,4.2};
 109   Float_t rout[5]={17.4,28.4,17.4,28.4,17.4};
 110   Float_t RinHoneyComb[5] ={ 5.15,16.4,  5.15,16.4,  5.15};
 111   Float_t RoutHoneyComb[5]={20.63,34.92,22.3, 32.02,20.63};
 112   Float_t zInside;
 113   Float_t zCooper=0.01; Float_t zChips=0.01;
 114   Float_t yNylonTube[5]={10,20,10,20,10};
 115
 116
 117   AliMatrix(idrotm[901], 90, 0, 90, 90, 180, 0);
 118
 119
 120   // Nylon tubes
 121    gMC->Gsvolu("GNYL","TUBE", idtmed[1], NylonTube, 3);  //support nylon tube
 122    Float_t wideSupport=zSi+3*zPCB+2*NylonTube[2]+zHoneyComb;
 123      cout<<" wideSupport "<<wideSupport<<endl;
 124
 125  for (ifmd=0; ifmd<5; ifmd++)
 126     {
 127       sprintf(nameFMD,"FMD%d",ifmd+1);
 128       ppcon[0]=0;
 129       ppcon[1]=360;
 130       ppcon[2]=4;
 131
 132       ppcon[3]=-wideSupport;
 133       ppcon[4]=rin[ifmd]+0.1;
 134       ppcon[5]=rout[ifmd]+0.1;
 135
 136       ppcon[6]=ppcon[3]+2*zSi+2*zPCB+2*NylonTube[2];
 137       ppcon[7]=rin[ifmd]+0.1;
 138       ppcon[8]=rout[ifmd]+0.1;
 139
 140       ppcon[9]=ppcon[6];
 141       ppcon[10]=RinHoneyComb[ifmd]+0.1;
 142       ppcon[11]=RoutHoneyComb[ifmd]+0.1;
 143
 144       ppcon[12]=ppcon[9]+2*zHoneyComb+zPCB;
 145       ppcon[13]=RinHoneyComb[ifmd]+0.1;
 146       ppcon[14]=RoutHoneyComb[ifmd]+0.1;
 147       gMC->Gsvolu(nameFMD,"PCON",idtmed[0],ppcon,15);
 148       if (z[ifmd] >0){
 149         zFMD=z[ifmd]+wideSupport;
 150         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,0, "ONLY");}
 151       else {
 152         zFMD=z[ifmd]-wideSupport;
 153         gMC->Gspos(nameFMD,1,"ALIC",0,0,zFMD,idrotm[901], "ONLY");}
 154      //silicon
 155       sprintf(nameSi,"GSI%d",ifmd+1);
 156       sprintf(nameSector,"GSC%d",ifmd+1);
 157       sprintf(nameRing,"GRN%d",ifmd+1);
 158
 159       //honeycomb support
 160       sprintf(nameHoney,"GSU%d",ifmd+1);
 161       gMC->Gsvolu(nameHoney,"TUBE", idtmed[0], par, 0);  //honeycomb
 162       sprintf(nameHoneyIn,"GHI%d",ifmd+1);
 163       gMC->Gsvolu(nameHoneyIn,"TUBE", idtmed[7], par, 0);  //honey comb inside
 164       sprintf(nameHoneyOut,"GHO%d",ifmd+1);
 165       gMC->Gsvolu(nameHoneyOut,"TUBE", idtmed[6], par, 0);  //honey comb skin
 166       //PCB
 167       sprintf(namePCB,"GPC%d",ifmd+1);
 168       gMC->Gsvolu(namePCB,"TUBE", idtmed[0], par, 0); //PCB
 169       sprintf(nameCopper,"GCO%d",ifmd+1);
 170       gMC->Gsvolu(nameCopper,"TUBE", idtmed[3], par, 0);  // Cooper
 171       sprintf(nameChips,"GCH%d",ifmd+1);
 172       gMC->Gsvolu(nameChips,"TUBE", idtmed[5], par, 0); // Si chips
 173       sprintf(nameG10,"G10%d",ifmd+1);
 174       gMC->Gsvolu(nameG10,"TUBE", idtmed[2], par, 0);  //G10 plate
 175       //last PCB
 176       sprintf(nameLPCB,"GPL%d",ifmd+1);
 177       gMC->Gsvolu(nameLPCB,"TUBE", idtmed[0], par, 0); //PCB
 178       sprintf(nameLCopper,"GCL%d",ifmd+1);
 179       gMC->Gsvolu(nameLCopper,"TUBE", idtmed[3], par, 0);  // Cooper
 180       sprintf(nameLChips,"GHL%d",ifmd+1);
 181       gMC->Gsvolu(nameLChips,"TUBE", idtmed[5], par, 0); // Si chips
 182       sprintf(nameGL10,"G1L%d",ifmd+1);
 183       gMC->Gsvolu(nameGL10,"TUBE", idtmed[2], par, 0); // Last G10
 184       par[0]=rin[ifmd]; // pipe size
 185       par[1]=rout[ifmd];
 186       par[2]=zSi/2;
 187       gMC->Gsvolu(nameSi,"TUBE", idtmed[4], par, 3);
 188       zInside=ppcon[3]+par[2];
 189        gMC->Gspos(nameSi,ifmd+1,nameFMD,0,0,zInside,0, "ONLY");
 190       //PCB 1
 191       zInside += par[2]+zPCB/2;
 192       par[2]=zPCB/2;
 193       gMC->Gsposp(namePCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 194       zInside += zPCB;
 195       gMC->Gsposp(namePCB,2,nameFMD,0,0,zInside,0, "ONLY",par,3);
 196       Float_t NulonTubeBegin=zInside+2.5*zPCB;
 197       par[2]=zPCB/2-0.02;
 198       Float_t zInPCB = -zPCB/2+par[2];
 199       gMC->Gsposp(nameG10,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 200       zInPCB+=par[2]+zCooper/2 ;
 201       par[2]=zCooper/2;
 202       gMC->Gsposp(nameCopper,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 203       zInPCB += zCooper/2 + zChips/2;
 204       par[2]=zChips/2;
 205       gMC->Gsposp(nameChips,1,namePCB,0,0,zInPCB,0, "ONLY",par,3);
 206       //HoneyComb
 207       zHoneyComb=0.8;
 208       par[0] = RinHoneyComb[ifmd];
 209       par[1] = RoutHoneyComb[ifmd];
 210       par[2] = zHoneyComb/2;
 211       zInside += 2*NylonTube[2]+par[2];
 212       gMC->Gsposp(nameHoney,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 213       par[2]=0.1/2;
 214       Float_t zHoney=-zHoneyComb/2+par[2];
 215       gMC->Gsposp(nameHoneyOut,1,nameHoney,0,0,zHoney,0,
 216                   "ONLY",par,3); //shkurki
 217       zHoney=zHoneyComb/2-par[2];
 218       gMC->Gsposp(nameHoneyOut,2,nameHoney,0,0,zHoney,0, "ONLY",par,3);
 219       par[2]=(zHoneyComb-2.*0.1)/2; //soty vnutri
 220       gMC->Gsposp(nameHoneyIn,1,nameHoney,0,0,0,0, "ONLY",par,3);
 221
 222       gMC->Gspos("GNYL",1,nameFMD,0,yNylonTube[ifmd],
 223                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
 224       gMC->Gspos("GNYL",2,nameFMD,0,-yNylonTube[ifmd],
 225                  NulonTubeBegin+NylonTube[2]/2.,0, "ONLY");
 226
 227       //last PCB
 228       par[0]=RoutHoneyComb[ifmd]-9;
 229       par[1]=RoutHoneyComb[ifmd];
 230       par[2]=zPCB/2;
 231       zInside += zHoneyComb/2+par[2];
 232       gMC->Gsposp(nameLPCB,1,nameFMD,0,0,zInside,0, "ONLY",par,3);
 233
 234        par[2]=zPCB/2-0.02;
 235        zInPCB = -zPCB/2+par[2];
 236        gMC->Gsposp(nameGL10,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 237        zInPCB+=par[2]+zCooper/2 ;
 238        par[2]=zCooper/2;
 239        gMC->Gsposp(nameLCopper,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 240        zInPCB += zCooper/2 + zChips/2;
 241        par[2]=zChips/2;
 242        gMC->Gsposp(nameLChips,1,nameLPCB,0,0,zInPCB,0, "ONLY",par,3);
 243
 244
 245      //Granularity
 246        fSectorsSi1=20;
 247        fRingsSi1=256*2;
 248     // fRingsSi1=3; // for drawing only
 249        fSectorsSi2=40;
 250        fRingsSi2=128*2;
 251      //  fRingsSi2=3; //for  drawing onl
 252     if(ifmd==1||ifmd==3)
 253       {
 254         gMC->Gsdvn(nameSector, nameSi , fSectorsSi2, 2);
 255         gMC->Gsdvn(nameRing, nameSector, fRingsSi2, 1);
 256       }
 257     else
 258       {
 259         gMC->Gsdvn(nameSector, nameSi , fSectorsSi1, 2);
 260         gMC->Gsdvn(nameRing, nameSector , fRingsSi1, 1);
 261       }
 262
 263     }
 264 }
 265
 266
 267 //------------------------------------------------------------------------
 268 void AliFMDv0::CreateMaterials()
 269 {
 270  Int_t isxfld   = gAlice->Field()->Integ();
 271  Float_t sxmgmx = gAlice->Field()->Max();
 272
 273  // Plastic CH
 274  Float_t aPlastic[2]={1.01,12.01};
 275  Float_t zPlastic[2]={1,6};
 276  Float_t wPlastic[2]={1,1};
 277  Float_t denPlastic=1.03;
 278    //
 279   //     60% SiO2 , 40% G10FR4
 280  // PC board
 281  Float_t apcb[3]  = { 28.0855,15.9994,17.749 };
 282  Float_t zpcb[3]  = { 14.,8.,8.875 };
 283  Float_t wpcb[3]  = { .28,.32,.4 };
 284  Float_t denspcb  = 1.8;
 285    //
 286  //*** Definition Of avaible FMD materials ***
 287  AliMaterial(0, "FMD Air$", 14.61, 7.3, .001205, 30423.,999);
 288  AliMixture(1, "Plastic$",aPlastic,zPlastic,denPlastic,-2,wPlastic);
 289  AliMixture(2, "SSD PCB$",   apcb, zpcb, denspcb, 3, wpcb);
 290  AliMaterial(3, "SSD Copper$", 63.546, 29., 8.96, 1.43, 999.);
 291  AliMaterial(4, "SSD Si$",      28.0855, 14., 2.33, 9.36, 999.);
 292  AliMaterial(5, "SSD Si chip$", 28.0855, 14., 2.33, 9.36, 999.);
 293  AliMaterial(6, "SSD C$",       12.011,   6., 2.265,18.8, 999.);
 294  AliMaterial(7, "SSD Kapton$", 12.011, 6., 0.01, 31.27, 999.);//honeycomb
 295   AliMaterial(8, "SSD G10FR4$", 17.749, 8.875, 1.8, 21.822, 999.);
 296
 297
 298 //**
 299  AliMedium(0, "FMD air$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 300  AliMedium(1, "Plastic$", 1, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 301  AliMedium(2, "SSD PCB$", 2, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 302  AliMedium(3, "SSD Copper$", 3, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 303  AliMedium(4, "SSD Si$", 4, 1, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 304  AliMedium(5, "SSD Si chip$", 5, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 305  AliMedium(6, "SSD C$", 6, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 306  AliMedium(7, "SSD Kapton$", 7, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
 307  AliMedium(8, "SSD G10FR4$", 8, 0,isxfld, sxmgmx,  10., .01, 1., .003, .003);
 308
 309
 310
 311 }
 312 //---------------------------------------------------------------------
 313 void AliFMDv0::DrawDetector()
 314 {
 315 //
 316 // Draw a shaded view of the Forward multiplicity detector version 0
 317 //
 318
 319
 320 //Set ALIC mother transparent
 321 gMC->Gsatt("ALIC","SEEN",0);
 322 //
 323 //Set volumes visible
 324 gMC->Gsatt("FMD0","SEEN",1);
 325 gMC->Gsatt("FMD1","SEEN",1);
 326 gMC->Gsatt("FMD2","SEEN",1);
 327 gMC->Gsatt("FMD3","SEEN",1);
 328 gMC->Gsatt("FMD4","SEEN",1);
 329 gMC->Gsatt("FMD5","SEEN",1);
 330
 331 //
 332 gMC->Gdopt("hide","on");
 333 gMC->Gdopt("shad","on");
 334 gMC->SetClipBox(".");
 335 gMC->SetClipBox("*",0,1000,-1000,1000,-1000,1000);
 336 gMC->DefaultRange();
 337 gMC->Gdraw("alic",40,30,0,12,9.5,.2,0.2);
 338 gMC->Gdhead(1111,"Forward multiplicity detector");
 339 gMC->Gdopt("hide","off");
 340 }
 341 //-------------------------------------------------------------------
 342 void AliFMDv0::Init()
 343 {
 344 // Initialises version 0 of the Forward Multiplicity Detector
 345 //
 346 AliFMD::Init();
 347 fIdSens1=gMC->VolId("GRN1");
 348 fIdSens2=gMC->VolId("GRN2");
 349 fIdSens3=gMC->VolId("GRN3");
 350 fIdSens4=gMC->VolId("GRN4");
 351 fIdSens5=gMC->VolId("GRN5");
 352 if (fDebug) printf("*** FMD version 0 initialized ***\n");
 353 }
 354
 355 //-------------------------------------------------------------------
 356
 357 void AliFMDv0::StepManager()
 358 {
 359   //
 360   // Called for every step in the Forward Multiplicity Detector
 361   //
 362 }
 363