Losses on SPS flat bottom and beam loading with LHC beams

Losses at SPS flat bottom with the LHC proton beams hadbeen studied since the earliest days the LHC beams becameavailable in the SPS. Some of the loss mechanisms involvedcould be identified and over the years of operation with thenominal 25ns LHC beam, the losses could be gradually re-duced. Neverth...

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Detalles Bibliográficos
Autores principales: Bartosik, H, Bohl, T, Cettour Cave, S, Cornelis, K, Damerau, H, Goddard, B, Kain, V, Lasheen, A, Rumolo, G, Shaposhnikova, E, Timko, H
Lenguaje:eng
Publicado: 2017
Materias:
Accelerators and Storage Rings
Acceso en línea:https://dx.doi.org/10.23727/CERN-Proceedings-2017-002.63
http://cds.cern.ch/record/2301803
Descripción
Sumario:Losses at SPS flat bottom with the LHC proton beams hadbeen studied since the earliest days the LHC beams becameavailable in the SPS. Some of the loss mechanisms involvedcould be identified and over the years of operation with thenominal 25ns LHC beam, the losses could be gradually re-duced. Nevertheless, in machine studies with high intensity25ns LHC beams it is still observed that the transmissiondegrades with intensity. As summarised in this paper, a se-ries of studies have been performed in 2016 with the aim offurther characterising the loss mechanisms and eventuallyfinding mitigation measures in view of the LHC injectorupgrade project (LIU)

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