Fast global orbit feedback system in PLS-II. (15th December 2016)

• Record Type: Journal Article
• Authors: Lee, J.; Kim, C.; Kim, J.M.; Kim, K.R.; Lee, E.H.; Lee, J.W.; Lee, T.Y.; Park, C.D.; Shin, S.; Yoon, J.C.; Cho, W.S.; Park, G.S.; Kim, S.C.
• Is Part Of: Journal of instrumentation. Volume 11:Number 12(2016:Dec.)
• Page Start: T12003
• Page End: T12003
• Publication Date: 2016-12-15
• Subjects: Instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons) -- Instrumentation for synchrotron radiation accelerators -- Accelerator Subsystems and Technologies; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/11/12/T12003
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: The transverse position of the electron beam in the Pohang Light Source-II is stabilized by the global orbit feedback system. A slow orbit feedback system has been operating at 2 Hz, and a fast orbit feedback (FOFB) system at 813 Hz was installed recently. This FOFB system consists of 96 electron-beam-position monitors, 48 horizontal fast correctors, 48 vertical fast correctors and Versa Module Europa bus control system. We present the design and implementation of the FOFB system and its test result. Simulation analysis is presented and future improvements are suggested.