Abstract

Two electron lenses (e -lenses) have been in operation during the 2015 RHIC physics run as part of a head-on beam-beam compensation scheme. While the RHIC lattice was chosen to reduce the beam-beam-induced resonance-driving terms, the electron lenses reduced the beam-beam-induced tune spread. This has been demonstrated for the first time. The beam-beam compensation scheme allows for higher beam-beam parameters and therefore higher intensities and luminosity. In this paper, we detail the design considerations and verification of the electron beam parameters of the RHIC e -lenses. Longitudinal and transverse alignments with ion beams and the transverse beam transfer function measurement with head-on electron-proton beam are presented.

Details

Title
Electron lenses for head-on beam-beam compensation in RHIC
Author
X. Gu
Section
ARTICLES
Publication year
2017
Publication date
Feb 2017
Publisher
American Physical Society
e-ISSN
24699888
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2551286311
Copyright
© 2017. This work is licensed under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.