Publications by Douglas Bett

Development of a turn-by-turn beam position monitoring system for multiple bunch operation of the atf damping ring

IPAC 2012 - International Particle Accelerator Conference 2012 (2012) 930-932

PN Burrows, DR Bett, N Blaskovic Kraljevic, GB Christian, MR Davis, C Perry, RJ Apsimon, B Constance, A Gerbershagen, J Resta-Ĺopez

An FPGA-based monitoring system has been developed to study multi-bunch beam instabilities in the damping ring (DR) of the KEK Accelerator Test Facility (ATF). The system utilises a stripline beam position monitor (BPM) and single-stage down-mixing BPM processor. The system is designed to record the horizontal and/or vertical positions of up to three bunches in the DR with c. 150ns bunch spacing, or the head bunch of up to three trains in a multi-bunch mode with a bunch spacing of 5.6 ns. The FPGA firmware and data acquisition software allow the recording of turnby- turn data. An overview of the system and performance results will be presented. Copyright © 2012 by IEEE.

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