|WEPP003||A new button-type beam position monitor for BESSY II and BESSY VSR||500|
Funding: This work was supported by the German Bundesministerium für Bildung und Forschung, Land Berlin and grants of Helmholtz Association.
The future BESSY VSR system involves more than one order-of-magnitude differences in the total charge of adjacent short and long bunches within the bunch train. Thus, any signal ringing beyond a nanosecond in time will cause a misreading of beam position and current, specifically for low bunch charges. This calls for improved performance for the bunch-selective operation of the beam-position-monitor (BPM) system. We report on the corresponding design and fabrication of a new button BPM with advanced features, such as impedance matching inside the button as well as optimization of insulator material, button size, and position, for reduced crosstalk between buttons.
|DOI •||reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2019-WEPP003|
|About •||paper received ※ 04 September 2019 paper accepted ※ 10 September 2019 issue date ※ 10 November 2019|
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