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| MOPOPT009 |
New Bunch-by-Bunch Filling Pattern Measuring System at ELSA |
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- A.K. Wald, K. Desch, D. Elsner, D. Proft
ELSA, Bonn, Germany
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The electron accelerator facility ELSA at the University of Bonn, Germany, can accelerate and store electrons with a final energy from 0.8GeV up to 3.2GeV. To routinely determine the filling pattern in the storage ring, a new measuring system has been developed. For hadron physics experiments the filling pattern, which is influenced by the injection from the pre-accelerating synchrotron, should be as homogeneous as possible. The new measurement system should provide a real-time measurement of the filling pattern, so that the injection can be continuously optimized. Moreover, a position measurement for each individual bunch is provided, from which the two transverse and the longitudinal tunes can be deduced. To measure the bunch-by-bunch intensity and position, the signals of the existing button-type BPMs will be digitized by fast 12-bit ADCs synchronized to the 500MHz ELSA radio frequency. The fast pre-processing and intermediate storage of the data is realized with a 500MHz clocked FPGA and transfers the data to a PC for further processing. First results of measurement system developed in-house will be presented.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOPT009
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| About • |
Received ※ 08 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 28 June 2022 |
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