LHC Longitudinal Beam Dynamics during Run 2

During the LHC Run 2, many advances have been made on the beam dynamics in the longitudinal plane. The controlled longitudinal emittance blow-up used in the acceleration ramp was improved and bunch flattening was implemented for bunch length control during collisions. In order to minimise RF power c...

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Detalles Bibliográficos
Autores principales: Timko, H, Argyropoulos, T, Baudrenghien, P, Calaga, R, Długosz, D, Müller, J F Esteban, Karpov, I, Medrano, L E Medina, Palm, M, Salvachua, B, Shaposhnikova, E, Wenninger, J
Lenguaje:eng
Publicado: 2019
Acceso en línea:http://cds.cern.ch/record/2750299
Descripción
Sumario:During the LHC Run 2, many advances have been made on the beam dynamics in the longitudinal plane. The controlled longitudinal emittance blow-up used in the acceleration ramp was improved and bunch flattening was implemented for bunch length control during collisions. In order to minimise RF power consumption, the capture voltage was optimised and the full-detuning beam-loading compensation scheme was made operational for the ramp and at top energy. Various experimental and simulation studies have helped to improve operation and prepare for the future runs at increased intensities.

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