Speaker
Description
The current bunch-by-bunch beam position measurement system at electron storage ring mainly based on high-sampling-rate oscilloscopes and transverse feedback electronics. The oscilloscope cannot achieve real-time bunch-by-bunch beam position measurement or large-scale online applications. The TFB electronics can only perform simple relative position measurements of single bunch at a time. The turn-by-turn BPM processor has matured over 20 years. With the advancement of high sampling rate direct RF sampling ADCs and related electronics technologies, now is the time to initiate the development of a bunch-by-bunch BPM processor. A bunch-by-bunch BPM electronics using direct RF sampling technology has been developed at SSRF. The processor performs 2 GSPS direct sampling and real-time processing of four-channel BPM signals, enabling real-time measurement of all bunch-by-bunch positions and providing BPM data from turn-by-turn rate to closed orbit. This bunch-by-bunch processor eliminates the need for complex delay adjustments RF front-end for peak sampling, providing a solid foundation for future large-scale online engineering applications.
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