The LHCb Calorimeter Performance and its Expected Radiation-Induced Degradation

The calorimeter for the LHCb experiment at the Large Hadron Collider (LHC) is fully installed, integrated in the experiment, and precalibrated, its commissioning being completed. Calorimeter performance from the test beam studies, radioactive source and cosmic ray measurements, and the first experience with the LHC particles are reported. The extensive radiation resistance studies are translated in the expected calorimeter degradation in view of the LHCb experiment operation and its foreseen upgrade.