Paper | Title | Page |
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WEPAF010 | Fast Glitch Detection of Coupled Bunch Instabilities and Orbit Motions | 1829 |
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Funding: Work supported by DOE contract No: DE-SC0012704 During high current operation at NSLS-II storage ring, vertical beam size spikes have been noticed. The spikes are believed due to ion instability associates with vacuum activities localized in the ring. A new tool has been developed using gated BPM turn-by-turn (TBT) data to detect beam centroid glitches. When one turn orbit deviates outside the predefined window, a global event will be generated. This allows synchronized data acquisition of TBT beam positions around the ring. Bunch by bunch data is acquired at the same time to analyze the possible coupled bunch instabilities (CBI). Besides CBI mainly due to ion bursts, fast orbit glitches have been captured with the new tool. Sources of the glitches can be identified. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-WEPAF010 | |
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WEPAF013 | Database for the Management of NSLS-II Active Interlock System | 1841 |
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Funding: DOE Contract No. DE-SC0012704 NSLS-II is operating the active interlock (AI) system to protect the machine components from the synchrotron radiation from the accidentally mis-steered electron beam. For the systematic management, a relational database is dedicated to the AI system and working as the data provider as well as the archiver. The paper shows how the database is structured and used for the AI system. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-WEPAF013 | |
Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |