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Title: Validation of off-momentum cleaning performance of the LHC collimation system
Authors: Salvachua, Belen
Baudrenghien, Philippe
Bruce, Roderik
Garcia, Hector
Hermes, Pascal Dominik
Jackson, Stephen
Jaussi, M.
Mereghetti, Alessio
Mirarchi, Daniele
Redaelli, Stefano
Timko, Helga
Valentino, Gianluca
Valloni, Alessandra
Kwee-Hinzmann, Regina
Keywords: Large Hadron Collider (France and Switzerland)
Colliders (Nuclear physics)
Collimators (Optical instrument)
Issue Date: 2016
Publisher: Joint Accelerator Conferences Website (JACoW)
Citation: Salvachua, B., Baudrenghien, P., Bruce, R., Garcia, H., Hermes, P. D., Jackson, S.,... Kwee-Hinzmann, R. (2016). Validation of off-momentum cleaning performance of the LHC collimation system. 7th International Particle Accelerator Conference, Busan. 2427-2429.
Abstract: The LHC collimation system is designed to provide effective cleaning against losses coming from off-momentum particles, either due to un-captured beam or to an unexpected RF frequency change. For this reason the LHC is equipped with a hierarchy of collimators in IR3: primary, secondary and absorber collimators. After every collimator alignment or change of machine configuration, the off-momentum cleaning efficiency is validated with loss maps at low intensity. We describe here the improved technique used in 2015 to generate such loss maps without completely dumping the beam into the collimators. The achieved performance of the collimation system for momentum cleaning is reviewed.
ISBN: 9783954501472
Appears in Collections:Scholarly Works - FacICTCCE

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