IPAC'25 - the 16th International Particle Accelerator Conference

Proton-electron scattering at injection and extraction of the hollow electron lens at the HL-LHC

TUPB054

3 Jun 2025, 16:00

2h

Exhibiton Hall A _Bear (TWTC)

Poster Presentation MC8.U08 Radiation Effects Tuesday Poster Session

Speaker

Volodymyr Rodin (European Organization for Nuclear Research)

Description

The Hollow Electron Lens (HEL), initially planned for the High-Luminosity project of the LHC (HL-LHC), consists of an electron current in the shape of a cylindrical shell coaxial to the circulating hadron beam for typical distances of a few meters. At injection and extraction of the HEL, the electron beam intercepts the circulating hadron beam, leading to possible losses of the latter (e.g. via intensity burn-off) and to local radiation losses. In this note, we examine the rate at which such losses may occur due to elastic and inelastic proton-electron scattering, as well as the phase-space of the electron-proton collision.

Funding Agency

This work has been sponsored by the Wolfgang Gentner Programme of the German Federal Ministry of Education and Research (grant no. 13E18CHA)