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| TUP002 |
Development of Bunch Position Monitors to Observe Sudden Beam Loss of SuperKEKB Rings |
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- M. Tobiyama, H. Ikeda, G. Mitsuka
KEK, Ibaraki, Japan
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In the SuperKEKB rings, we have encountered extremely-fast beam losses occurring primarily within one to two turns in some parts of the bunch train. Such ¿sudden beam loss¿ induced severe failure in the vertical collimator heads, quenches on the superconducting final quadrupoles, and damage on the Belle II detector in some cases. Thus it is essential to investigate the cause and take countermeasures. This paper presents the phenomena clarified by the bunch current and position monitor of the bunch feedback system. The upgrade plan for the existing monitor, and recently developed simple monitors installed in the suspected area is also introduced.
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Poster TUP002 [0.727 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-IBIC2023-TUP002
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| About • |
Received ※ 06 September 2023 — Revised ※ 08 September 2023 — Accepted ※ 13 September 2023 — Issue date ※ 27 September 2023 |
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