CERN Accelerating science

Article
Title	Vibration and luminosity frequency analysis of the SuperKEKB collider
Author(s)	Serluca, Maurizio (Annecy, LAPP) ; Balik, Gael (Annecy, LAPP) ; Brunetti, Laurent (Annecy, LAPP) ; Aimard, Benjamin (Annecy, LAPP) ; Dominjon, Agnes (Annecy, LAPP) ; Bambade, Philip (IJCLab, Orsay) ; Wallon, Sandry (IJCLab, Orsay) ; Di Carlo, Salvatore (CERN) ; Masuzawa, Mika (KEK, Tsukuba) ; Uehara, Sadaharu (KEK, Tsukuba)
Publication	2022
Number of pages	9
In:	Nucl. Instrum. Methods Phys. Res., A 1025 (2022) 166123
DOI	10.1016/j.nima.2021.166123 (publication)
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	SuperKEKB
Abstract	The SuperKEKB collider has entered the physics production phase with the aim to reach its target luminosity of 6×1035 cm−2s−1. Vibrations of the accelerator elements, especially around the Interaction Point (IP), could limit the performance of the collider. Since 2018, a 24-hour monitoring system of vibrations has been put in place on both sides of the Belle II detector. Measurements and analyses of the spectral components of these vibrations and of the transfer function of the mechanical supports are presented, along with measurements of luminosity spectra from the LumiBelle2 detectors, showing good agreement in spectral peak frequencies for several of the vibration sources.
Copyright/License	publication: © 2021-2024 Elsevier B.V.

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