Preliminary Mechanical Design Study of the Hollow Electron Lens for HL-LHC

8th International Particle Accelerator Conference

Zanoni, Carlo^1 ; Gobbi, Giorgia^1 ; Perini, Diego^1 ; Stancari, Giulio^2

CERN, Engineering Department, Geneva, Switzerland^1

Fermi National Accelerator Laboratory, PO Box 500, Batavia

IL

60510, United States^2

关键词: Electrical parameter;    Electron trajectories;    Feasibility studies;    Improve performance;    Integration design;    Large Hadron Collider;    Mechanical design;    Strong magnetic fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/874/1/012102/pdf
DOI  :  10.1088/1742-6596/874/1/012102

来源: IOP

【 摘 要 】

A Hollow Electron Lens (HEL) has been proposed in order to improve performance of halo control and collimation in the Large Hadron Collider in view of its High Luminosity upgrade (HL-LHC). The concept is based on a hollow beam of electrons that travels around the protons for a few meters. The electron beam is produced by a cathode and then guided by a strong magnetic field. The first step of the design is the definition of the magnetic field that drives the electron trajectories. The estimation of such trajectories by means of a dedicated MATLAB tool is presented. The influence of the main geometrical and electrical parameters is analyzed and discussed. Then, the main mechanical design choices for the solenoids, cryostats gun and collector are described. The aim of this paper is to provide an overview of the feasibility study of the Electron Lens for LHC. The methods used in this study also serve as examples for future mechanical and integration designs of similar devices.