Title :
Status of the rf BPM upgrade at the Advanced Photon Source
Author :
Pietryla, A. ; Bui, H. ; Decker, G. ; Laird, R. ; Lill, R. ; Norum, E.
Author_Institution :
ANL, Argonne
Abstract :
The Advanced Photon Source (APS),a third-generation synchrotron light source, has been in operation for eleven years. The monopulse radio frequency (rf) beam position monitor (BPM) is one of three BPM types now employed in the storage ring at the APS. It is a broadband (10 MHz) system designed to measure single-turn and multi-turn beam positions, but it suffers from an aging data acquisition system. The replacement BPM system retains the existing monopulse receivers and replaces the data acquisition system with high-speed analog-to-digital converters (ADCs) and a field-programmable gate array (FPGA) that performs the signal processing. A first-article system has been constructed and is currently being evaluated. This paper presents the results of testing of the first-article system as well as the progress made in other areas of this upgrade effort.
Keywords :
accelerator RF systems; data acquisition; electron accelerators; particle beam diagnostics; storage rings; APS; FPGA; RF BPM; advanced photon source; analog-to-digital converters; data acquisition system; field-programmable gate array; first-article system; monopulse radio frequency beam position monitor; monopulse receivers; multiturn beam positions; signal processing; single-turn beam positions; storage ring; third-generation synchrotron light source; upgrade effort; Aging; Analog-digital conversion; Data acquisition; Field programmable gate arrays; Light sources; Monitoring; Position measurement; Radio frequency; Storage rings; Synchrotrons;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440015
