Design and manufacturing of three permanent magnet dipoles for FASER experiment

Thursday 25 Mar 2021, 10:30 → 12:00 Europe/Zurich

ZOOM

Pierre Alexandre Thonet (CERN)

Abstract:

Please note that the we kindly ask you when connecting to this seminar to mute your microphones and cameras in order to have a good connection.

FASER, the ForwArd Search ExpeRiment, is designed to search for new, yet undiscovered, light and weakly-interacting particles and study the interactions of high-energy neutrinos. Three dipoles are required to achieve sufficient separation of pairs of oppositely charged, high-energy Standard Model particles originating from decays of new physics particles. The longest, a 1.5 m long magnet surrounds a decay volume in the upstream part of the detector, which is followed by two 1 m long magnets.

The dipoles have an aperture diameter of 200 mm with a minimum required magnetic field at the centre of 0.55 T. Due to tight space constraints, a design based on permanent magnets was proposed. This presentation will describe our experience for the design, manufacturing, assembly, measurement and installation in LHC of these large Halbach array dipoles.

Faser magnet seminar final version.pdf