  The NA48 experiments aims at a precise measurement of direct CP violation in
the neutral Kaon system. This puts stringent requirements on the
electromagnetic calorimeter used to detect photons of average energy 25 GeV.
The choice of NA48 is a quasi homogeneous Liquid Krypton calorimeter with fast
readout. The operation of this device and the performances achieved are
described.

High Energy Physics - Experiment;Instrumentation and Detectors