RICH/AliRICHParam.cxx

   1 #include "AliRICHParam.h"
   2 #include "AliRICHConst.h"  //for units ????
   3
   4 ClassImp(AliRICHParam)
   5
   6 //______________________________________________________________________________
   7 // RICH main parameters manipulator
   8 AliRICHParam::AliRICHParam()
   9 {//defines the default parameters
  10   Segmentation         (144,160);               //nx,ny
  11   DeadZone             (3*cm);                  //spacer between PC planes
  12   PadSize              (8.4*mm,8.0*mm);
  13   Size                 (80*cm,7*cm,60*cm);      //full length, not GEANT half notation
  14   AngleRot             (0*deg);                 //rotation of the whole RICH around Z
  15   AnglesDeg            (20,19.5);               //XY angle, YZ angle  deg
  16   Offset               (490*cm+1.267*cm);       //1.267???????cm distance from IP to the center of module
  17   GapThickness         (8*cm);               //Gap Thickness
  18   ProximityGapThickness(0.4*cm);             //Proximity Gap Thickness
  19   QuartzLength         (133*cm);             //Quartz Length
  20   QuartzWidth          (127.9*cm);           //Quartz Width
  21   QuartzThickness      (0.5*cm);             //Quartz Thickness
  22   OuterFreonLength     (133*cm);             //Outer Freon Length
  23   OuterFreonWidth      (41.3*cm);            //Outer Freon Width
  24   InnerFreonLength     (133*cm);             //Inner Freon Length
  25   InnerFreonWidth      (41.3*cm);            //Inner Freon Width
  26   FreonThickness       (1.5*cm);             //Freon Thickness
  27   RadiatorToPads       (0);               //Distance from radiator to pads
  28
  29   SigmaIntegration(5.);
  30   ChargeSlope(27.);
  31   ChargeSpreadX(0.18);ChargeSpreadY(0.18);
  32   MaxAdc(4096);
  33   AlphaFeedback(0.036);
  34   EIonisation(26.e-9);
  35   SqrtKx3(0.77459667);
  36   Kx2(0.962);
  37   Kx4(0.379);
  38   SqrtKy3(0.77459667);
  39   Ky2(0.962);
  40   Ky4(0.379);
  41   Pitch(0.25);
  42   WireSag(1);                 // 1->On, 0->Off
  43   Voltage(2150);              // Should only be 2000, 2050, 2100 or 2150
  44
  45   Recalc();
  46 }//AliRICHParam::named ctor
  47 //______________________________________________________________________________
  48 void AliRICHParam::Recalc()
  49 {//recalculate
  50   Float_t csi_length=fNy*fPadY+fDeadZone;
  51   Float_t csi_width =fNx*fPadX+2*fDeadZone;
  52   fPadPlaneWidth = (csi_width - 2*fDeadZone)/3;
  53   fPadPlaneLength = (csi_length - fDeadZone)/2;
  54 }//void AliRICHParam::Recalc()
  55 //______________________________________________________________________________