Speaker
Makoto Tobiyama
(High Energy Accelerator Research Organization)
Description
At the SuperKEKB collider, many challenging phenomena arise from the high current and narrow bunch spacing. In particular, there are urgent issues that require clarification and resolution, such as the sudden beam loss (SBL) phenomenon, in which the beam suffers significant loss within the first one or two circuits, and the betatron tune shift along the bunch train due to wake fields. Using the digital bunch feedback system, we have employed several monitors to measure beam characteristics without disrupting the bunch feedback function. This paper presents the subsystems with several examples of measured results.
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Author
Makoto Tobiyama
(High Energy Accelerator Research Organization)