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The bunch current measurement using high-speed photodetector at HLS II
- Publication Year :
- 2017
-
Abstract
- This contribution presents a novel bunch current measurement system based on an ultra-fast photodetector and a high-speed digitizer at Hefei Light Source II (HLS II). In order to achieve bunch-by-bunch resolution, the sampling rate of the system is nearly 225 GS/s via a dedicated equivalent sampling algorithm. According to preliminary tests of daily operation mode and single-bunch mode, the root-mean-square (rms) of current relative error distribution is 1.03%, which illustrates the new system satisfies requirements for high-precision bunch current measurement. In addition, experiment results of "HLS" Morse code fill pattern mode demonstrate this system also could be a convenient and robust tool for beam top-up mode in the future.<br />Comment: This paper has been withdrawn by the author due to a crucial sign error in equation 1
- Subjects :
- Physics - Accelerator Physics
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1701.01790
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1109/TNS.2017.2713699