Impedance modelling and single-bunch collective instability simulations for the SuperKEKB main rings

The SuperKEKB is an electron-positron collider consisting of two storage rings: the 4 GeV-positron low-energy ring and the 7 GeV-electron high-energy ring. The impedance of the rings has been modeled using electromagnetic simulation codes and used to study the single-bunch collective instabilities....

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Bibliographic Details
Published in:Journal of instrumentation 2024-02, Vol.19 (2), p.P02013
Main Authors: Ishibashi, T., Migliorati, M., Zhou, D., Shibata, K., Abe, T., Tobiyama, M., Suetsugu, Y., Terui, S.
Format: Article
Language:English
Subjects:
Accelerator modelling and simulations (multi-particle dynamics, single-particle dynamics)
Beam dynamics
Coherent instabilities
Electron-positron accelerators
Impedance
Simulation
Storage rings (particle accelerators)
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Summary:The SuperKEKB is an electron-positron collider consisting of two storage rings: the 4 GeV-positron low-energy ring and the 7 GeV-electron high-energy ring. The impedance of the rings has been modeled using electromagnetic simulation codes and used to study the single-bunch collective instabilities. The wake potentials are exported from the impedance model and included in a particle tracking simulation code, PyHEADTAIL. In this paper, we review the impedance modeling and the results of the collective instability simulations.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/19/02/P02013