	The ZEUS Calorimeter was a uranium scintillator based sampling calorimeter and divided into 3 main sections: the BCAL (Barrel CALorimeter), FCAL (Forward CALorimeter), and RCAL (Rear CALorimeter). Each section was subdivided transversely into towers, and longitudinally into EMC (Electro-Magnetic Calorimeter) or HAC (HAdronic Calorimeter). The smallest subdivision in the calorimeter was called a cell. Each cell was read-out by two photomultiplier tubes (PMT), which helped ensure that there were no holes in the coverage if one of the two PMTs failed.