Hollow Electron Beam Collimation For HL-LHC - Effect On The Beam Core

Collimation with hollow electron beams or lenses (HEL) is currently one of the most promising concepts for active halo control in HL-LHC. In previous studies it has been shown that the halo can be efficiently removed with a hollow electron lens. Equally important as an efficient removal of the halo,...

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Detalles Bibliográficos
Autores principales: Fitterer, M, Stancari, G, Valishev, A, Bruce, R, Papadopoulou, S, Papotti, G, Pellegrini, D, Redaelli, S, Valuch, D, Wagner, J F
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.18429/JACoW-NAPAC2016-WEA1CO04
http://cds.cern.ch/record/2314321
Descripción
Sumario:Collimation with hollow electron beams or lenses (HEL) is currently one of the most promising concepts for active halo control in HL-LHC. In previous studies it has been shown that the halo can be efficiently removed with a hollow electron lens. Equally important as an efficient removal of the halo, is also to demonstrate that the core stays unperturbed. In this paper, we present a summary of the experiment at the LHC and simulations in view of the effect of the HEL on the beam core in case of a pulsed operation.

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