Vibration and luminosity frequency analysis of the SuperKEKB collider

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...

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Bibliographic Details
Published inNuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 1025; p. 166123
Main Authors Serluca, Maurizio, Balik, Gael, Brunetti, Laurent, Aimard, Benjamin, Dominjon, Agnes, Bambade, Philip, Wallon, Sandry, Di Carlo, Salvatore, Masuzawa, Mika, Uehara, Sadaharu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 11.02.2022
Subjects
Ground motion
Lumibelle2
Mechanical vibrations
SuperKEKB
99-00
SuperKEKB
Lumibelle2
Ground motion
00-01
Mechanical vibrations
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Summary: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.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2021.166123