CERN Accelerating science

Article
Title	Chapter 28: Non-linear Optics Measurements and Corrections
Author(s)	Maclean, E H (CERN) ; Carlier, F (CERN) ; Dilly, J W (CERN) ; Giovannozzi, M (CERN) ; Karastathis, N ; Persson, T H B (CERN) ; Tomás, R (CERN)
Publication	2024
Number of pages	14
In:	Adv. Ser. Direct. High Energy Phys. 31 (2024) 579-592
In:	The High Luminosity Large Hadron Collider, pp.579-592
DOI	10.1142/9789811278952_0028
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CERN LHC
Project	CERN HL-LHC
Abstract	Nonlinear optics errors in low-βべーた* insertions pose a serious challenge to successful operation of the HL-LHC. LHC experience however has demonstrated that the previously assumed correction strategy, based upon ideal compensation of selected nonlinear resonances, as determined from magnetic measurements, suffers from several limitations. A beam-based correction approach yielded a positive operational impact in the LHC, and dedicated machine studies have helped establish new methods for nonlinear optics corrections in HL-LHC.
Copyright/License	© 2024 The Editor(s) (License: CC-BY-NC-4.0)

Corresponding record in: Inspire