The electronics system of the ALFA forward detector for luminosity measurements in ATLAS

The ATLAS Forward Detectors for Measurement of Elastic Scattering and Luminosity (ALFA) have been fully installed during the 2010–2011 winter LHC shutdown. ALFA consists of 8 mini tracking detectors made of 20 planes of scintillating fibers placed in Roman Pot units near the beam and 240 m away on both sides of the interaction point. The front-end electronics sit directly on top of the PMTs and has been designed to facilitate the connectivity to the ATLAS counting room. The full system consisting of the detectors units, the control electronics and the connections to the ATLAS TTC, TDAQ and DCS systems has been successfully tested.