Acquisition chain for CTF3 pick-ups read-out

Since 2005, LAPP got involved in the development of new electronics system of intensity and deviations acquisition for the CTF3 (CLIC Test Facility 3) collaboration. The aim of this system is to perform the analog to digital conversion of inductive pickups signals the closer as possible to the beam in order to reduce the cost of the expensive existing acquisition (analog signals cables and digitizers in VME crates). The system includes the full chain from preamplification to data processing: analog preamplification module, analog transmission, digitalization board, network and data process/display software. From 2006 to 2009, 50 chains have been installed in several beam lines of the accelerator. This document describes the chosen technical solutions