Resolution study of higher-order-mode-based beam position diagnostics using custom-built electronics in strongly coupled 3.9-GHz multi-cavity accelerating module

Journal Article · Thu Nov 01 00:00:00 EDT 2012 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/7/11/P11016· OSTI ID:1155828

Zhang, P.; Baboi, N.; Jones, R. M.; Eddy, N.

Beam-excited higher order modes (HOMs) can provide remote diagnostics information of the beam position and cavity misalignment. In this paper we report on recent studies on the resolution with specially selected series of modes with custom-built electronics. This constitutes the first report of measurements of these cavities in which we obtained a resolution of 20 micron in beam offset. Details of the setup of the electronics and HOM measurements are provided.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1155828
• Report Number(s): FERMILAB-PUB-12-802-AD
• Journal Information: Journal of Instrumentation, Vol. 7, Issue 11; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)
• Country of Publication: United States
• Language: English

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43 PARTICLE ACCELERATORS