Elettra 2.0: First delivery of 190 quadrupoles completed

At the end of May, all 190 quadrupole magnets of the first batch of iron-dominated multipole electromagnets for the new Elettra 2.0 light source were delivered. These magnets, easily recognizable by their red or purple color, have four poles and are used to focus the beam—transversely confining the electron bunches circulating in the storage ring. They are built to meet very strict magnetic and mechanical specifications, including high field quality and extremely precise machining of the pole profiles, with tolerances below 20 µm.

The design of the Elettra 2.0 quadrupoles was the first to be developed. Work began in 2014 and included several phases, such as the construction of a prototype by CERN (Geneva) in 2018. This prototype demonstrated the feasibility of a new coil winding technique that allows the magnetic length of the magnet to match or exceed its physical end-to-end length.