First High-Intensity Beam Tests with Telescopic Flat Optics at the LHC

The paper reports on the first high-intensity beam tests obtained with flat optics in 2018 (MD2148). This new machine configuration is described in terms of hypercycle, optics transitions, and dedicated beam gymnastics. The various commissioning steps which were needed to obtain the green light for an...

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Detalles Bibliográficos
Autores principales: Fartoukh, Stephane, Azzopardi, Gabriella, Bruce, Roderik, Buffat, Xavier, Coello De Portugal - Martinez Vazquez, Jaime Maria, Dilly, Joschua Werner, Fol, Elena, Fuster Martinez, Nuria, Garcia-Tabares Valdivieso, Ana, Hofer, Michael, Karastathis, Nikos, Maclean, Ewen Hamish, Malina, Lukas, Mereghetti, Alessio, Mirarchi, Daniele, Persson, Tobias Hakan Bjorn, Pojer, Mirko, Poyet, Axel, Schaumann, Michaela, Solfaroli Camillocci, Matteo, Sterbini, Guido, Tomas Garcia, Rogelio, Valuch, Daniel, Wegscheider, Andreas, Wenninger, Jorg
Lenguaje:eng
Publicado: 2019
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2687343
Descripción
Sumario:The paper reports on the first high-intensity beam tests obtained with flat optics in 2018 (MD2148). This new machine configuration is described in terms of hypercycle, optics transitions, and dedicated beam gymnastics. The various commissioning steps which were needed to obtain the green light for an intensity ramp up are highlighted, in particular the optics measurements and corrections, the triplet aperture measurements, and the collimation-related activities. First collision of trains took place in the second 2018 LHC MD block. The main results are given in terms of luminosity, long-range beam-beam mitigation with lattice octupoles, and corresponding crossing angle reach.

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