PHOS/AliPHOSv3.cxx

   1 /////////////////////////////////////////////////////////
   2 //  Manager and hits classes for set:PHOS version 3    //
   3 /////////////////////////////////////////////////////////
   4
   5 // --- ROOT system ---
   6 #include "TH1.h"
   7 #include "TRandom.h"
   8 #include "TFile.h"
   9 #include "TTree.h"
  10 #include "TBRIK.h"
  11 #include "TNode.h"
  12
  13 // --- galice header files ---
  14 #include "AliPHOSv3.h"
  15 #include "AliRun.h"
  16 #include "AliMC.h"
  17
  18 ClassImp(AliPHOSv3)
  19
  20 //______________________________________________________________________________
  21
  22
  23 AliPHOSv3::AliPHOSv3()
  24 {
  25 }
  26
  27 //______________________________________________________________________________
  28
  29 AliPHOSv3::AliPHOSv3(const char *name, const char *title)
  30           : AliPHOS(name, title)
  31 {
  32 }
  33
  34 //___________________________________________
  35 void AliPHOSv3::CreateGeometry()
  36 {
  37
  38   cout << "AliPHOSv3::CreateGeometry() PHOS creation\n";
  39
  40   AliPHOS *PHOS_tmp = (AliPHOS*)gAlice->GetModule("PHOS");
  41   if( NULL==PHOS_tmp )
  42   {
  43     printf("There isn't PHOS detector!\n");
  44     return;
  45   }
  46 //  AliPHOS &PHOS = *PHOS_tmp;
  47
  48   //////////////////////////////////////////////////////////////////////////////
  49
  50   Int_t                 rotation_matrix_number=0;
  51   Float_t               par[11],
  52                         x,y,z;
  53
  54   const float           cell_length             = GetCrystalLength()+GetAirThickness()+GetWrapThickness()+GetPIN_Length(),
  55                         cell_side_size          = GetCrystalSideSize()+2*GetAirThickness()+2*GetWrapThickness(),
  56 //                        cell_angle              = 180/kPI * 2 * atan(cell_side_size/2 / GetRadius()),        // radians
  57                         cradle_thikness         = cell_length + GetCPV_Thickness() + GetCPV_PHOS_Distance(),
  58                         distance_to_CPV         = GetRadius() - GetCPV_Thickness() - GetCPV_PHOS_Distance();
  59
  60   //////////////////////////////////////////////////////////////////////////////
  61   // CELL volume and subvolumes creation
  62   //////////////////////////////////////////////////////////////////////////////
  63
  64   par[0] = GetCrystalSideSize()/2 + GetWrapThickness();
  65   par[1] = GetCrystalSideSize()/2 + GetWrapThickness();
  66   par[2] = GetCrystalLength()  /2 + GetWrapThickness()/2;
  67   gMC->Gsvolu("WRAP","BOX ",GetPHOS_IDTMED_Tyvek(),par,3);
  68
  69   par[0] = GetCrystalSideSize()/2;
  70   par[1] = GetCrystalSideSize()/2;
  71   par[2] = GetCrystalLength()/2;
  72   gMC->Gsvolu("CRST","BOX ",GetPHOS_IDTMED_PbWO4(),par,3);
  73
  74   // PIN
  75   par[0] = GetPIN_SideSize()/2;
  76   par[1] = GetPIN_SideSize()/2;
  77   par[2] = GetPIN_Length()/2;
  78   gMC->Gsvolu("PIN ","BOX ",GetPHOS_IDTMED_PIN(),par,3);
  79
  80   //////////////////////////////////////////////////////////////////////////////
  81   // CRADLE,CPV creation.
  82   //////////////////////////////////////////////////////////////////////////////
  83
  84   par[0] = cell_side_size/2 * GetNz();
  85   par[1] = cell_side_size/2 * GetNphi();
  86   par[2] = cradle_thikness/2;
  87   gMC->Gsvolu("PHOS","BOX ",GetPHOS_IDTMED_AIR(),par,3);
  88
  89 //par[0] : the same as above
  90 //par[1] : the same as above
  91   par[2] = GetCPV_Thickness()/2;
  92   gMC->Gsvolu("CPV ","BOX ",GetPHOS_IDTMED_CPV(),par,3);
  93
  94   x = 0;
  95   y = 0;
  96   z = (cell_length+GetCPV_PHOS_Distance())/2;
  97   gMC->Gspos("CPV ",1,"PHOS",x,y,z,0,"ONLY");
  98
  99   par[0] = cell_side_size/2 * GetNz();
 100   par[1] = cell_side_size/2 * GetNphi();
 101   par[2] = cell_length/2;
 102   gMC->Gsvolu("CRS0","BOX ",GetPHOS_IDTMED_AIR(),par,3);
 103
 104   x = 0;
 105   y = 0;
 106   z = -(cradle_thikness-cell_length)/2;
 107   gMC->Gspos("CRS0",1,"PHOS",x,y,z,0,"ONLY");
 108
 109   gMC->Gsdvn("CRS1","CRS0",GetNphi(),2);
 110   gMC->Gsdvn("CELL","CRS1",GetNz()  ,1);
 111
 112   //////////////////////////////////////////////////////////////////////////////
 113   // CELL creation
 114   //////////////////////////////////////////////////////////////////////////////
 115
 116   x = 0;
 117   y = 0;
 118   z = -GetWrapThickness()/2;
 119   gMC->Gspos("CRST",1,"WRAP",x,y,z,0,"ONLY");
 120
 121   x = 0;
 122   y = 0;
 123   z = GetPIN_Length()/2;
 124   gMC->Gspos("WRAP",1,"CELL",x,y,z,0,"ONLY");
 125
 126   x = 0;
 127   y = 0;
 128   z = -GetCrystalLength()/2-GetWrapThickness()/2;
 129   gMC->Gspos("PIN ",1,"CELL",x,y,z,0,"ONLY");
 130
 131   //////////////////////////////////////////////////////////////////////////////
 132   // CELL has been created.
 133   //////////////////////////////////////////////////////////////////////////////
 134
 135 //   int n=0;
 136 //   z = -(GetCPV_Thickness()+GetCPV_PHOS_Distance())/2;
 137 //
 138 //   for( int iy=0; iy<GetNphi(); iy++ )
 139 //   {
 140 //     y = (iy-(GetNphi()-1)/2.)*cell_side_size;
 141 //     for( int ix=0; ix<GetNz(); ix++ )
 142 //     {
 143 //       x = (ix-(GetNz()-1)/2.)*cell_side_size;
 144 //       gMC->Gspos("CELL",++n,"PHOS",x,y,z,0,"ONLY");
 145 //     }
 146 //   }
 147
 148   //////////////////////////////////////////////////////////////////////////////
 149   // End of CRADLE creation.
 150   //////////////////////////////////////////////////////////////////////////////
 151
 152
 153   //////////////////////////////////////////////////////////////////////////////
 154   // PHOS creation
 155   //////////////////////////////////////////////////////////////////////////////
 156
 157   for( int i=0; i<GetCradlesAmount(); i++ )
 158   {
 159     float c                = distance_to_CPV,           // Distance to CPV
 160           l                = cell_side_size*GetNphi()/2,      // Cradle half size around beam (for rect. geom.)
 161           cradle_angle     = 360/kPI*atan(l/c),
 162           cradle_angle_pos = -90+(i-(GetCradlesAmount()-1)/2.) * (cradle_angle+GetAngleBetweenCradles());
 163     // Cradles are numerated in clock reversed order. (general way of angle increment)
 164
 165     float   r       = GetRadius() + cradle_thikness/2;
 166     x = r*cos(cradle_angle_pos*kPI/180);
 167     y = r*sin(cradle_angle_pos*kPI/180);
 168     z = 0;
 169     AliMatrix(rotation_matrix_number, 0,0 , 90,90+cradle_angle_pos , 90,180+cradle_angle_pos);
 170     gMC->Gspos("PHOS",i+1,"ALIC",x,y,z,rotation_matrix_number,"ONLY");
 171
 172     GetCradleAngle(i) = cradle_angle_pos;
 173 //
 174 //    int n = PHOS.fCradles->GetEntries();
 175 //    PHOS.fCradles->Add(new AliPHOSCradle( 1,            // geometry.
 176 //                                          GetCrystalSideSize    (),
 177 //                                          GetCrystalLength      (),
 178 //                                          GetWrapThickness      (),
 179 //                                          GetAirThickness       (),
 180 //                                          GetPIN_SideSize       (),
 181 //                                          GetPIN_Length         (),
 182 //                                          GetRadius             (),
 183 //                                          GetCPV_Thickness      (),
 184 //                                          GetCPV_PHOS_Distance  (),
 185 //                                          GetNz                 (),
 186 //                                          GetNphi               (),
 187 //                                          cradle_angle_pos      ));
 188 //
 189 //    if( n+1 != PHOS.fCradles->GetEntries() ||
 190 //        NULL == PHOS.fCradles->At(n) )
 191 //    {
 192 //      cout << "  Can not create or add AliPHOSCradle.\n";
 193 //      exit(1);
 194 //    }
 195   }
 196   AddPHOSCradles();
 197
 198   //////////////////////////////////////////////////////////////////////////////
 199   // All is done.
 200   // Print some information.
 201   //////////////////////////////////////////////////////////////////////////////
 202 }
 203
 204 void AliPHOSv3::StepManager()
 205 {
 206   static Bool_t inwold=0;   // Status of previous ctrak->inwvol
 207   Int_t copy;
 208
 209 //   if( gMC->TrackEntering() ) {
 210 //     Int_t Volume_ID = gMC->CurrentVol(Volume_name, copy);
 211 //     cout << "AliPHOSv3::StepManager() entered to PHOS to the volume " << Volume_name << "!\n";
 212 //   }
 213
 214   int cradle_number, cell_Z, cell_Phi;  // Variables that describe cell position.
 215
 216   if( gMC->GetMedium()==GetPHOS_IDTMED_PIN() && gMC->IsTrackEntering() && gMC->TrackCharge()!=0 )
 217   {
 218     // GEANT particle just have entered into PIN diode.
 219
 220     AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
 221
 222     gMC->CurrentVolOffID(4,copy);
 223     cradle_number  = copy-1;
 224     gMC->CurrentVolOffID(1,copy);
 225     cell_Z         = copy-1;
 226     gMC->CurrentVolOffID(2,copy);
 227     cell_Phi       = copy-1;
 228
 229     TH2S &h = PHOS.GetCradle(cradle_number).fChargedTracksInPIN;
 230     h.AddBinContent(h.GetBin(cell_Z,cell_Phi));
 231
 232 //     cout << "AliPHOSv3::StepManager() entered to PHOS pin diode\n";
 233 //     cout << "   cradle_nimber = " << cradle_number << endl;
 234 //     cout << "   cell_z        = " << cell_Z << endl;
 235 //     cout << "   cell_Phi      = " << cell_Phi << endl;
 236   }
 237
 238   //////////////////////////////////////////////////////////////////////////////
 239
 240   if( gMC->GetMedium() == GetPHOS_IDTMED_PbWO4() )
 241   {
 242     // GEANT particle into crystal.
 243
 244     AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
 245
 246     gMC->CurrentVolOffID(5,copy);
 247     cradle_number  = copy-1;
 248     gMC->CurrentVolOffID(2,copy);
 249     cell_Z         = copy-1;
 250     gMC->CurrentVolOffID(3,copy);
 251     cell_Phi       = copy-1;
 252
 253     TH2F &h = PHOS.GetCradle(cradle_number).fCellEnergy;
 254     h.AddBinContent(h.GetBin(cell_Z,cell_Phi),gMC->Edep());
 255   }
 256
 257   //////////////////////////////////////////////////////////////////////////////
 258
 259   if( gMC->GetMedium()==GetPHOS_IDTMED_CPV() && gMC->IsTrackEntering() )
 260   {
 261     // GEANT particle just have entered into CPV detector.
 262
 263     AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
 264
 265     gMC->CurrentVolOffID(1,cradle_number);
 266     cradle_number--;
 267
 268     // Save CPV x,y hits position of charged particles.
 269
 270     AliPHOSCradle  &cradle = PHOS.GetCradle(cradle_number);
 271
 272     TLorentzVector p;
 273     gMC->TrackPosition(p);
 274     TVector3          v;
 275
 276     float x,y,l;
 277     float R = cradle.GetRadius() - cradle.GetCPV_PHOS_Distance() - cradle.GetCPV_Thikness();
 278     cradle.GetXY(p.Vect(),v,R,x,y,l);
 279     if( PHOS.fDebugLevel>0 )
 280       if( l<0 )
 281         printf("PHOS_STEP:  warning: negative distance to CPV!! %f\n", l);
 282
 283     // Store current particle in the list of Cradle particles.
 284     TLorentzVector  pmom;
 285     gMC->TrackMomentum(pmom);
 286     Float_t Px    = pmom[0],
 287             Py    = pmom[1],
 288             Pz    = pmom[2];
 289     Float_t Getot = pmom[3];
 290     Int_t   Ipart = gMC->TrackPid();
 291
 292     cradle.GetParticles().Add(new AliPHOSgamma(x,y,Getot,Px,Py,Pz,Ipart));
 293
 294     //    printf ("Cradle %i, x,y = %8.3f, %8.3f cm, E,Px,Py,Pz = %8.3f, %8.3f, %8.3f GeV, %8.3f, Ipart = %i\n",
 295     //       cradle_number,x,y,Getot,Px,Py,Pz,Ipart);
 296
 297   }
 298
 299   inwold=gMC->IsTrackEntering();         // Save current status of GEANT variable.
 300 }