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RIS citation export for THBP37: Refining the LHC Longitudinal Impedance Model

TY  - CONF
AU  - Zampetakis, M.
AU  - Argyropoulos, T.
AU  - Brischetto, Y.
AU  - Calaga, R.
AU  - Giacomel, L.
AU  - Karlsen-Bæck, B.E.
AU  - Karpov, I.
AU  - Mounet, N.
AU  - Salvant, B.
AU  - Timko, H.
ED  - Cai, Yunhai
ED  - Nagaitsev, Sergei
ED  - Kim, Dong Eon
ED  - Marx, Michaela
ED  - Schaa, Volker R. W.
TI  - Refining the LHC Longitudinal Impedance Model
J2  - Proc. of HB2023, Geneva, Switzerland, 09-13 October 2023
CY  - Geneva, Switzerland
T2  - ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams
T3  - 68
LA  - english
AB  - Modelling 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.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 559
EP  - 562
KW  - impedance
KW  - cavity
KW  - simulation
KW  - injection
KW  - damping
DA  - 2024/04
PY  - 2024
SN  - 2673-5571
SN  - 978-3-95450-253-0
DO  - doi:10.18429/JACoW-HB2023-THBP37
UR  - https://jacow.org/hb2023/papers/thbp37.pdf
ER  -