Observations of Two-beam Instabilities during the 2012 LHC Physics Run

During the 2012 run transverse coherent beam instabilities have been observed in the LHC at 4 TeV, during the betatron squeeze and in collision for special filling patterns. Several studies to characterize these instabilities have been carried out during operation and in special dedicated experiment...

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Detalles Bibliográficos
Autores principales: Pieloni, T, Arduini, G, Giachino, R, Herr, W, Lamont, M, Metral, E, Mounet, N, Papotti, G, Salvant, B, Wenninger, J, Buffat, X, White, S M
Lenguaje:eng
Publicado: 2013
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/1581728
Descripción
Sumario:During the 2012 run transverse coherent beam instabilities have been observed in the LHC at 4 TeV, during the betatron squeeze and in collision for special filling patterns. Several studies to characterize these instabilities have been carried out during operation and in special dedicated experiments. In this paper we summarize the observations collected for different machine parameters and the present understanding of the origin of these instabilities.

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