Performance of the forward electromagnetic calorimeter (FEMC) for the end caps of the DELPHI detector

Abstract We present the performance of the DELPHI lead glass calorimeter with vacuum phototriode readout. The behaviour of the counters in magnetic fields up to 1.1 T is discussed. Experimental results, obtained with an electron beam from 7 to 50 GeV/ c , on noise, linearity, energy and position resolution are presented.