Electron dynamics for high-intensity hollow electron beams

Abstract Hollow Electron Lenses (HEL) will be installed at the High Luminosity Large Hadron Collider to provide a continuous and controlled depletion of beam halo particles by interaction with superimposed hollow electron beam, intensity as high 5 A, radii 1.1–2.2 mm for 7 TeV LHC operations. In this paper, issues related propagation beams are discussed simulations dynamics feedback HEL design presented. The main results rise accelerating voltage from 10 kV, in initial proposal, 15 kV validation T magnetic field solenoids being sufficient guarantee stable beam.