The Electromagentic Barrel Calorimeter for the GlueX Experiment
  The electromagnetic barrel calorimeter is one of the main components of the planned GlueX experiment. It will consist of 48 modules made of consecutive layers of 4 m long lead sheet and fast green scintillator fibers for an overall number of approximately 3000 readout channels with silicon photomultiplier-based photo-sensors for light collection. The calorimeter is expected to achieve energy and time resolution better than 5%/sqrt(E)+2% and 200 ps, respectively.   In this contribution we present an overview of the calorimeter design and some preliminary studies of its performance using Monte Carlo simulations and beam test measurements. 
M. Barbi