Speaker
Description
The Hefei Advanced Light Facility (HALF) is designed to generate and operate with a beam current of up to 350 mA while maintaining the beam emittance at the diffraction-limited level. The bunch-by-bunch feedback system serves as a critical tool for suppressing beam instabilities, requiring feedback control targeting the position oscillations of each bunch. To meet this demand, the engineering team has independently developed a bunch-by-bunch feedback system, fabricated a prototype, and conducted relevant tests. Through high-precision phase alignment, the analog front-end conditions the original signals into high-precision and wide-dynamic-range sum-and-difference signals. Utilizing the phase-splitting and time-delaying method, the processor can measure the high-precision three-dimensional (3D) position of each bunch and implement feedback control accordingly. This paper presents the design of the system as well as the details of the prototype development and testing.
| In which format do you inted to submit your paper? | Word |
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