CaloEvent/CaloSampling.h
   enum CaloSample {
      PreSamplerB=0, EMB1, EMB2, EMB3,       // LAr barrel
      PreSamplerE, EME1, EME2, EME3,       // LAr EM endcap 
      HEC0, HEC1, HEC2, HEC3,            // Hadronic end cap cal.
      TileBar0, TileBar1, TileBar2,      // Tile barrel
      TileGap1, TileGap2, TileGap3,      // Tile gap (ITC & scint)
      TileExt0, TileExt1, TileExt2,      // Tile extended barrel
      FCAL0, FCAL1, FCAL2,               // Forward EM endcap
      Unknown
   };