Response of a close to final prototype for the (P)over-barANDA Electromagnetic Calorimeter to photons at energies below 1 GeV

The response of two generations of prototypes of the (P) over bar ANDA Electromagnetic Calorimeter (EMC), PROT060 and PROT120, to photons in the energy range between 50 MeV and 800 MeV was obtained. Furthermore, the performance of the pre-amplifier ASIC (APFEL) under real experimental conditions, the position dependence of the energy resolution within the crystal and the implementation of higher order energy correction algorithms with a 15 GeV/c positron beam were studied. (C) 2015 Elsevier B.V. All rights reserved.