002900891 001__ 2900891
002900891 003__ SzGeCERN
002900891 005__ 20240615214932.0
002900891 0247_ $$2DOI$$9JACOW$$a10.18429/JACoW-HB2023-THBP37
002900891 0248_ $$aoai:cds.cern.ch:2900891$$pcerncds:FULLTEXT$$pcerncds:CERN:FULLTEXT$$pcerncds:CERN
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002900891 035__ $$9Inspire$$a2775999
002900891 041__ $$aeng
002900891 100__ $$aZampetakis, Michail$$jJACoW-00117332$$uCERN
002900891 245__ $$9JACOW$$aRefining the LHC Longitudinal Impedance Model
002900891 260__ $$c2024
002900891 300__ $$a4 p
002900891 520__ $$9JACOW$$aModelling the longitudinal impedance for the Large Hadron Collider (LHC) has been a long-standing effort, especially in view of its High-Luminosity (HL) upgrade. The resulting impedance model is an essential input for beam dynamics studies. Increased beam intensities in the HL-LHC era will pose new challenges like RF power limitations, beam losses at injection and coupled-bunch instabilities throughout the acceleration cycle. Starting from the existing longitudinal impedance model, effort has been made to identify the main contributing devices and improve their modelling. Loss of Landau damping (LLD) simulations are performed to investigate the dependence of the stability threshold on the completeness of the impedance model and its broad-band cut-off frequency. Plans to perform beam measurements to estimate the cut-off frequency, by investigating the LLD threshold in operation, are also discussed.
002900891 540__ $$aCC-BY-3.0$$bJACOW$$uhttps://creativecommons.org/licenses/by/3.0
002900891 542__ $$dthe author(s)$$g2024
002900891 65017 $$2SzGeCERN$$aAccelerators and Storage Rings
002900891 6531_ $$9author$$aimpedance
002900891 6531_ $$9author$$acavity
002900891 6531_ $$9author$$asimulation
002900891 6531_ $$9author$$ainjection
002900891 6531_ $$9author$$adamping
002900891 690C_ $$aARTICLE
002900891 690C_ $$aCERN
002900891 700__ $$aArgyropoulos, Theodoros$$jJACoW-00047351$$uCERN
002900891 700__ $$aBrischetto, Ylenia$$jJACoW-00084392$$uCERN
002900891 700__ $$aCalaga, Rama$$jJACoW-00003654$$uCERN
002900891 700__ $$aGiacomel, Lorenzo$$jJACoW-00127032$$uCERN
002900891 700__ $$aKarlsen-Bæck, Birk Emil$$jJACoW-00144874$$uRome U.$$uCERN$$uINFN, Rome$$vCERN, Meyrin, Switzerland
002900891 700__ $$aKarpov, Ivan$$jJACoW-00060424$$uCERN
002900891 700__ $$aMounet, Nicolas$$jJACoW-00042877$$uCERN
002900891 700__ $$aSalvant, Benoit$$jJACoW-00028406$$uCERN
002900891 700__ $$aTimko, Helga$$jJACoW-00046591$$uCERN
002900891 773__ $$c559-562$$pJACoW HB$$qHB2023$$v2023$$wC23-10-09.3$$y2024
002900891 8564_ $$82537771$$s3538003$$uhttps://cds.cern.ch/record/2900891/files/document.pdf$$yFulltext
002900891 960__ $$a13
002900891 962__ $$b2895374$$k559-562$$ncern20231009
002900891 980__ $$aARTICLE
002900891 980__ $$aConferencePaper