Performance of a fine-sampling electromagnetic calorimeter prototype in the energy range from 1 to 19Â GeV

A fine-sampling electromagnetic calorimeter prototype has been tested experimentally with 1-19GeV/c tagged beams of negatively charged particles at the U70 accelerator at IHEP, Protvino. The energy resolution measured with electrons is ΔE/E=2.8%/E⊕1.3%. The position resolution for electrons is Δx=3.1⊕15.4/Emm in the center of the cell. The lateral non-uniformity of the energy response to electrons and MIPs has turned out to be negligible. Obtained experimental results are in a good agreement with Monte Carlo simulations.