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IPAC'23 - 14th International Particle Accelerator Conference

7–12 May 2023
Venice, Italy
Europe/Zurich timezone

IPAC'23

Characterization of transverse profiles along the LHC injector chain at CERN

WEPL158
10 May 2023, 16:30
2h
Sala Laguna

Sala Laguna
Poster Presentation MC5.D07: High Intensity Circular Machines Space Charge, Halos Wednesday Poster Session

Speaker

Carlo Zannini (European Organization for Nuclear Research)

Description

Following the successful implementation of the LHC Injectors Upgrade (LIU) project, the CERN injectors were re-commissioned in 2021 and have been delivering beam to the LHC since 2022. The operationally delivered beam is well within the specifications regarding its brightness. However, heavy population of non-Gaussian tails of the transverse beam profiles were observed.
These tails lead to high losses at LHC injection and degrade the luminosity reach of the LHC.
This paper follows the studies to characterize the transverse
profiles along the accelerator chain: the Proton Synchrotron Booster (PSB), the Proton Synchrotron (PS) and the Super Proton Synchrotron (SPS). The methodology to measure the emittance and the tail population as the studies aimed at reducing this population will also be discussed.

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Primary author

Foteini Asvesta (European Organization for Nuclear Research)

Co-authors

Alexander Huschauer (European Organization for Nuclear Research) Alexandre Lasheen (European Organization for Nuclear Research) Benoit Salvant (European Organization for Nuclear Research) Bettina Mikulec (European Organization for Nuclear Research) Carlo Zannini (European Organization for Nuclear Research) Denis Cotte (European Organization for Nuclear Research) Elena de la Fuente (European Organization for Nuclear Research) Gian Piero Di Giovanni (European Organization for Nuclear Research) Giovanni Rumolo (European Organization for Nuclear Research) Hannes Bartosik (European Organization for Nuclear Research) Ingrid Mases (European Organization for Nuclear Research) Sébastien Joly (European Organization for Nuclear Research) Tirsi Prebibaj (European Organization for Nuclear Research)

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