Página principal > A Mechanism for Emittance Growth Based on Non-Linear Islands in LHC |
Article | |
Title | A Mechanism for Emittance Growth Based on Non-Linear Islands in LHC |
Related title | A MECHANISM FOR EMITTANCE GROWTH BASED ON NON-LINEAR ISLANDS IN THE LHC |
Author(s) | Maclean, Ewen H (CERN) ; Giovannozzi, Massimo (CERN) ; Persson, Tobias H B (CERN) ; Tomás García, Rogelio (CERN) |
Publication | Geneva : JACoW, 2021 |
Number of pages | 4 |
In: | JACoW IPAC 2021 (2021) 4082-4085 |
In: | 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.4082-4085 |
DOI | 10.18429/JACoW-IPAC2021-THPAB169 (publication) |
Subject category | Accelerators and Storage Rings |
Abstract | Landau octupoles are used in the LHC to prevent coherent instabilities of the circulating beam. The reduction of their strength occurring during the energy ramp can transport particles in nonlinear islands to larger amplitude. This has the potential to lead to emittance growth and to beam-losses. Beam-based studies and simulations of emittance growth during Landau octupole ramps performed in the LHC are presented to explore this mechanism in more detail. |
Copyright/License | publication: © 2021 (License: CC-BY-3.0) |