Title :
Advanced Photon Source low-energy undulator test line bunch compressor beam position monitor system
Author_Institution :
Adv. Photon Source, Argonne Nat. Lab., IL, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper describes the design and development of a new beam position monitor (BPM) system designed specifically for the Advanced Photon Source Low-Energy Undulator Test Line (LEUTL) bunch compressor. The photocathode gun used for LEUTL presents new challenges for BPM systems. These challenges warranted the development of a new BPM system with a novel surface acoustic wave filter front-end and low-cost monopulse receiver. The system is designed to simultaneously measure single-shot position in both x and y planes using amplitude-to-phase signal processing topology. A logarithmic amplifier channel measures the beam intensity, which can be used as an indicator of shot-to-shot charge fluctuations. The latest experimental results using these BPMs are presented
Keywords :
electron accelerators; particle beam bunching; particle beam diagnostics; storage rings; wigglers; Advanced Photon Source low-energy undulator test line bunch compressor beam position monitor system; LEUTL bunch compressor; amplitude-to-phase signal processing topology; logarithmic amplifier channel; low-cost monopulse receiver; photocathode gun; shot-to-shot charge fluctuations; single-shot position; surface acoustic wave filter front-end; Acoustic beams; Acoustic measurements; Acoustic testing; Acoustic waves; Cathodes; Filters; Monitoring; Surface acoustic waves; System testing; Undulators;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.986677
