A measurement system for fast-pulsed magnets: a case study on Linac4 at CERN

A new magnetic measurement system for validating and characterizing permanent and fast-pulsed iron-dominated magnets is presented. This system is going to be used on the magnet series tests of the new linear particle accelerator Linac 4 of the Large Handron Collider at the European Organization for Nuclear Research (CERN) to perform a complete field analysis of the entire acceleration line. Measurement results will be useful to tune better the beam brightness during the first acceleration step. In this paper, the requirements, the architecture, and the most critical parts of the design are highlighted. Then, the preliminary experimental results obtained over the first Linac 4 magnet prototypes are discussed.