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@INPROCEEDINGS{Prebibaj:358327,
author = {Prebibaj, Tirsi and Antoniou, Fanouria and Asvesta, Foteini
and Bartosik, Hannes and Franchetti, Giuliano},
title = {{E}xperimental {I}nvestigations on the {H}igh-{I}ntensity
{E}ffects {N}ear the {H}alf-{I}nteger {R}esonance in the
{PSB}},
address = {Geneva, Switzerland},
publisher = {JACoW Publishing},
reportid = {GSI-2025-00511},
pages = {499 - 502},
year = {2024},
note = {Published by JACoW Publishing under the terms of the
Creative Commons Attribution 4.0 license.},
abstract = {Space charge effects are the main limitation for the
brightness performance of the Proton Synchrotron Booster
(PSB) at CERN. Following the upgrades of the LHC Injectors
Upgrade (LIU) project, the PSB delivered unprecedented
brightness even exceeding the projected target parameters. A
possibility for further increasing the brightness is to
operate above the half-integer resonance $2Q_{y}=9$ in order
to avoid emittance blow-up from resonances at $Q_{x,y}=4$
due to the strong space charge detuning. The half-integer
resonance can be compensated to a great extent using the
available quadrupole correctors in the PSB, and also
deliberately excited in a controlled way. The control of the
half-integer resonance and the flexibility of the PSB to
create a variety of different beam and machine conditions
allowed the experimental characterization of space charge
effects near this resonance. This contribution reports the
experimental observations of the particle trapping during
the dynamic crossing of the half-integer, as well as
systematic studies of the beam degradation from space charge
induced resonance crossing.},
month = {Oct},
date = {2023-10-09},
organization = {68th Adv. Beam Dyn. Workshop
High-Intensity High-Brightness Hadron
Beams, Geneva (Switzerland), 9 Oct 2023
- 13 Oct 2023},
keywords = {Accelerator Physics (Other) / Beam Dynamics in Rings
(Other)},
cin = {STR},
cid = {I:(DE-Ds200)STR-20121002OR239},
pnm = {899 - ohne Topic (POF4-899)},
pid = {G:(DE-HGF)POF4-899},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)8},
doi = {10.18429/JACOW-HB2023-THBP19},
url = {https://repository.gsi.de/record/358327},
}