  In the PHENIX experiment at RHIC, the electro-magnetic calorimeter plays an
important role in both the heavy-ion and spin physics programs for which it was
designed. In order to measure its performance in the energy range up to 80GeV,
a beam test was performed at the CERN-SPS H6 beam line. We describe the beam
test and present results on calorimeter performance with pion and electron
beams.
