Publications by Douglas Bett

Latest performance results from the font 5 intra train beam position feedback system at ATF

IPAC 2013: Proceedings of the 4th International Particle Accelerator Conference (2013) 3049-3051

PN Burrows, DR Bett, NB Kraljevic, GB Christian, MR Davis, YI Kim, C Perry, RJ Apsimon, B Constance, A Gerbershagen

A prototype ultra-fast beam-based feedback system for deployment in single-pass beamlines, such as a future lepton collider (ILC or CLIC) or a free-electron laser, has been fabricated and is being tested in the extraction and final focus lines of the Accelerator Test Facility (ATF) at KEK. FONT5 is an intra-train feedback system for stabilising the beam orbit via different methods: A position and angle feedback correction in the extraction line or a vertical feedforward correction applied at the interaction point (IP). Two systems comprise three stripline beam position monitors (BPMs) and two stripline kickers in the extraction line, two cavity BPMs and a stripline kicker at the IP, a custom FPGA-based digital processing board, custom kicker-drive amplifiers and low-latency analogue front-end BPM processors. Latest results from the experiment are presented. These include beam position correction in the extraction line, as well as preliminary results of beam correction at the IP. Copyright © 2013 by JACoW- cc Creative Commons Attribution 3.0 (CC-BY-3.0).

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