TRD/AliTRDgeometry.h

   1 #ifndef ALITRDGEOMETRY_H
   2 #define ALITRDGEOMETRY_H
   3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   4  * See cxx source for full Copyright notice                               */
   5
   6 /* $Id$ */
   7
   8 ///////////////////////////////////////////////////////////////////////////////
   9 //                                                                           //
  10 //  TRD geometry class                                                       //
  11 //                                                                           //
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #include "TObjArray.h"
  15
  16 #include "AliGeometry.h"
  17
  18 class TGeoHMatrix;
  19
  20 class AliTRDpadPlane;
  21
  22 class AliTRDgeometry : public AliGeometry {
  23
  24  public:
  25
  26   enum { kNlayer  =   6
  27        , kNstack  =   5
  28        , kNsector =  18
  29        , kNdet    = 540
  30        , kNdets   =  30 };
  31
  32   AliTRDgeometry();
  33   AliTRDgeometry(const AliTRDgeometry &g);
  34   virtual ~AliTRDgeometry();
  35   AliTRDgeometry &operator=(const AliTRDgeometry &g);
  36
  37   virtual void     Init();
  38   virtual void     CreateGeometry(Int_t *idtmed);
  39   virtual Int_t    IsVersion()                                            { return 1;               }
  40   virtual Bool_t   Impact(const TParticle* ) const                        { return kTRUE;           }
  41   virtual Bool_t   IsHole(Int_t la, Int_t st, Int_t se) const;
  42
  43   virtual Bool_t   RotateBack(Int_t det, Double_t *loc, Double_t *glb) const;
  44
  45           Bool_t   ChamberInGeometry(Int_t det);
  46
  47           void     GroupChamber(Int_t ilayer, Int_t istack, Int_t *idtmed);
  48           void     CreateFrame(Int_t *idtmed);
  49           void     CreateServices(Int_t *idtmed);
  50
  51           Bool_t   CreateClusterMatrixArray();
  52   TGeoHMatrix     *GetClusterMatrix(Int_t det)                           { return (TGeoHMatrix *)
  53                                                                              fClusterMatrixArray->At(det); }
  54
  55           void     SetSMstatus(Int_t sm, Char_t status)                  { fSMstatus[sm] = status;         }
  56
  57   static  Int_t    GetDetectorSec(Int_t layer, Int_t stack);
  58   static  Int_t    GetDetector(Int_t layer, Int_t stack, Int_t sector);
  59   static  Int_t    GetLayer(Int_t det);
  60   static  Int_t    GetStack(Int_t det);
  61           Int_t    GetStack(Double_t z, Int_t layer);
  62   static  Int_t    GetSector(Int_t det);
  63
  64           void     CreatePadPlaneArray();
  65   AliTRDpadPlane  *CreatePadPlane(Int_t layer, Int_t stack);
  66   AliTRDpadPlane  *GetPadPlane(Int_t layer, Int_t stack);
  67   AliTRDpadPlane  *GetPadPlane(Int_t det)                                { return GetPadPlane(GetLayer(det)
  68                                                                                              ,GetStack(det)); }
  69           Int_t    GetRowMax(Int_t layer, Int_t stack, Int_t /*sector*/);
  70           Int_t    GetColMax(Int_t layer);
  71           Double_t GetRow0(Int_t layer, Int_t stack, Int_t /*sector*/);
  72           Double_t GetCol0(Int_t layer);
  73
  74   static  Float_t  GetTime0(Int_t layer)                                 { return fgkTime0[layer];        }
  75
  76           Char_t   GetSMstatus(Int_t sm) const                           { return fSMstatus[sm];          }
  77           Float_t  GetChamberWidth(Int_t layer) const                    { return fCwidth[layer]      ;   }
  78           Float_t  GetChamberLength(Int_t layer, Int_t stack) const      { return fClength[layer][stack]; }
  79
  80   virtual void     GetGlobal(const AliRecPoint*, TVector3&, TMatrixF& ) const { };
  81   virtual void     GetGlobal(const AliRecPoint*, TVector3& ) const            { };
  82
  83   static  Double_t GetAlpha()                                            { return 2.0
  84                                                                              * 3.14159265358979324
  85                                                                              / fgkNsector;          }
  86
  87   static  Int_t    Nsector()                                             { return fgkNsector;       }
  88   static  Int_t    Nlayer()                                              { return fgkNlayer;        }
  89   static  Int_t    Nstack()                                              { return fgkNstack;        }
  90   static  Int_t    Ndet()                                                { return fgkNdet;          }
  91
  92   static  Float_t  Cheight()                                             { return fgkCH;            }
  93   static  Float_t  Cspace()                                              { return fgkVspace;        }
  94   static  Float_t  CraHght()                                             { return fgkCraH;          }
  95   static  Float_t  CdrHght()                                             { return fgkCdrH;          }
  96   static  Float_t  CamHght()                                             { return fgkCamH;          }
  97   static  Float_t  CroHght()                                             { return fgkCroH;          }
  98   static  Float_t  CroWid()                                              { return fgkCroW;          }
  99   static  Float_t  MyThick()                                             { return fgkMyThick;       }
 100   static  Float_t  DrThick()                                             { return fgkDrThick;       }
 101   static  Float_t  AmThick()                                             { return fgkAmThick;       }
 102   static  Float_t  DrZpos()                                              { return fgkDrZpos;        }
 103   static  Float_t  RpadW()                                               { return fgkRpadW;         }
 104   static  Float_t  CpadW()                                               { return fgkCpadW;         }
 105
 106   static  Float_t  Cwidcha()                                             { return (fgkSwidth2 - fgkSwidth1)
 107                                                                                   / fgkSheight
 108                                                                                   * (fgkCH + fgkVspace);      }
 109
 110   static  Int_t    MCMmax()                                              { return fgkMCMmax;        }
 111   static  Int_t    MCMrow()                                              { return fgkMCMrow;        }
 112   static  Int_t    ROBmaxC0()                                            { return fgkROBmaxC0;      }
 113   static  Int_t    ROBmaxC1()                                            { return fgkROBmaxC1;      }
 114   static  Int_t    ADCmax()                                              { return fgkADCmax;        }
 115   static  Int_t    TBmax()                                               { return fgkTBmax;         }
 116   static  Int_t    Padmax()                                              { return fgkPadmax;        }
 117   static  Int_t    Colmax()                                              { return fgkColmax;        }
 118   static  Int_t    RowmaxC0()                                            { return fgkRowmaxC0;      }
 119   static  Int_t    RowmaxC1()                                            { return fgkRowmaxC1;      }
 120
 121  protected:
 122
 123   static const Int_t    fgkNsector;                          //  Number of sectors in the full detector (18)
 124   static const Int_t    fgkNlayer;                           //  Number of layers of the TRD (6)
 125   static const Int_t    fgkNstack;                           //  Number of stacks in z-direction (5)
 126   static const Int_t    fgkNdet;                             //  Total number of detectors (18 * 6 * 5 = 540)
 127
 128   static const Float_t  fgkTlength;                          //  Length of the TRD-volume in spaceframe (BTRD)
 129
 130   static const Float_t  fgkSheight;                          //  Height of the supermodule
 131   static const Float_t  fgkSwidth1;                          //  Lower width of the supermodule
 132   static const Float_t  fgkSwidth2;                          //  Upper width of the supermodule
 133   static const Float_t  fgkSlength;                          //  Length of the supermodule
 134
 135   static const Float_t  fgkFlength;                          //  Length of the service space in front of a supermodule
 136
 137   static const Float_t  fgkSMpltT;                           //  Thickness of the super module side plates
 138
 139   static const Float_t  fgkCraH;                             //  Height of the radiator part of the chambers
 140   static const Float_t  fgkCdrH;                             //  Height of the drift region of the chambers
 141   static const Float_t  fgkCamH;                             //  Height of the amplification region of the chambers
 142   static const Float_t  fgkCroH;                             //  Height of the readout of the chambers
 143   static const Float_t  fgkCH;                               //  Total height of the chambers
 144
 145   static const Float_t  fgkVspace;                           //  Vertical spacing of the chambers
 146   static const Float_t  fgkHspace;                           //  Horizontal spacing of the chambers
 147   static const Float_t  fgkVrocsm;                           //  Radial distance of the first ROC to the outer SM plates
 148   static const Float_t  fgkCalT;                             //  Thickness of the lower aluminum frame
 149   static const Float_t  fgkCalW;                             //  Width of additional aluminum on lower frame
 150   static const Float_t  fgkCclsT;                            //  Thickness of the lower Wacosit frame sides
 151   static const Float_t  fgkCclfT;                            //  Thickness of the lower Wacosit frame front
 152   static const Float_t  fgkCglT;                             //  Thichness of the glue around the radiator
 153   static const Float_t  fgkCcuT;                             //  Thickness of the upper Wacosit frame
 154   static const Float_t  fgkCauT;                             //  Thickness of the aluminum frame of the back panel
 155
 156   static const Float_t  fgkCroW;                             //  Additional width of the readout chamber frames
 157
 158   static const Float_t  fgkCpadW;                            //  Difference of outer chamber width and pad plane width
 159   static const Float_t  fgkRpadW;                            //  Difference of outer chamber width and pad plane width
 160
 161   static const Float_t  fgkMyThick;                          //  Thickness of the mylar-layer
 162   static const Float_t  fgkRaThick;                          //  Thickness of the radiator
 163   static const Float_t  fgkXeThick;                          //  Thickness of the gas volume
 164   static const Float_t  fgkDrThick;                          //  Thickness of the drift region
 165   static const Float_t  fgkAmThick;                          //  Thickness of the amplification region
 166   static const Float_t  fgkWrThick;                          //  Thickness of the wire planes
 167   static const Float_t  fgkCuThick;                          //  Thickness of the pad plane
 168   static const Float_t  fgkGlThick;                          //  Thickness of the glue layer
 169   static const Float_t  fgkSuThick;                          //  Thickness of the NOMEX support structure
 170   static const Float_t  fgkRpThick;                          //  Thickness of the PCB readout boards
 171   static const Float_t  fgkRcThick;                          //  Thickness of the PCB copper layers
 172   static const Float_t  fgkRoThick;                          //  Thickness of all other ROB componentes (caps, etc.)
 173
 174   static const Float_t  fgkRaZpos;                           //  Position of the radiator
 175   static const Float_t  fgkDrZpos;                           //  Position of the drift region
 176   static const Float_t  fgkAmZpos;                           //  Position of the amplification region
 177   static const Float_t  fgkWrZpos;                           //  Position of the wire planes
 178   static const Float_t  fgkCuZpos;                           //  Position of the pad plane
 179   static const Float_t  fgkGlZpos;                           //  Position of the glue layer
 180   static const Float_t  fgkSuZpos;                           //  Position of the HEXCEL+G10 support structure
 181   static const Float_t  fgkRpZpos;                           //  Position of the PCB readout boards
 182   static const Float_t  fgkRcZpos;                           //  Position of the PCB copper layers
 183   static const Float_t  fgkRoZpos;                           //  Position of all other ROB componentes (caps, etc.)
 184
 185   static const Int_t    fgkMCMmax;                           //  Maximum number of MCMs per ROB
 186   static const Int_t    fgkMCMrow;                           //  Maximum number of MCMs per ROB Row
 187   static const Int_t    fgkROBmaxC0;                         //  Maximum number of ROBs per C0 chamber
 188   static const Int_t    fgkROBmaxC1;                         //  Maximum number of ROBs per C1 chamber
 189   static const Int_t    fgkADCmax;                           //  Maximum number of ADC channels per MCM
 190   static const Int_t    fgkTBmax;                            //  Maximum number of Time bins
 191   static const Int_t    fgkPadmax;                           //  Maximum number of pads per MCM
 192   static const Int_t    fgkColmax;                           //  Maximum number of pads per padplane row
 193   static const Int_t    fgkRowmaxC0;                         //  Maximum number of Rows per C0 chamber
 194   static const Int_t    fgkRowmaxC1;                         //  Maximum number of Rows per C1 chamber
 195
 196   Float_t               fCwidth[kNlayer];                    //  Outer widths of the chambers
 197   Float_t               fClength[kNlayer][kNstack];          //  Outer lengths of the chambers
 198
 199   Float_t               fRotB11[kNsector];                   //  Matrix elements for the backward rotation
 200   Float_t               fRotB12[kNsector];                   //  Matrix elements for the backward rotation
 201   Float_t               fRotB21[kNsector];                   //  Matrix elements for the backward rotation
 202   Float_t               fRotB22[kNsector];                   //  Matrix elements for the backward rotation
 203
 204   static const Double_t fgkTime0Base;                        //  Base value for calculation of Time-position of pad 0
 205   static const Float_t  fgkTime0[kNlayer];                   //  Time-position of pad 0
 206
 207   Float_t               fChamberUAorig[3*kNdets][3];         //  Volumes origin in
 208   Float_t               fChamberUDorig[3*kNdets][3];         //  the chamber
 209   Float_t               fChamberUForig[3*kNdets][3];         //  [3] = x, y, z
 210   Float_t               fChamberUUorig[3*kNdets][3];         //
 211
 212   Float_t               fChamberUAboxd[3*kNdets][3];         //  Volumes box
 213   Float_t               fChamberUDboxd[3*kNdets][3];         //  dimensions (half)
 214   Float_t               fChamberUFboxd[3*kNdets][3];         //  [3] = x, y, z
 215   Float_t               fChamberUUboxd[3*kNdets][3];         //
 216
 217   TObjArray            *fClusterMatrixArray;                 //! Transformation matrices loc. cluster to tracking cs
 218   TObjArray            *fPadPlaneArray;                      //! Array of pad plane objects
 219
 220   Char_t                fSMstatus[kNsector];                 //  Super module status byte
 221
 222   ClassDef(AliTRDgeometry,20)                                //  TRD geometry class
 223
 224 };
 225 #endif