CERN Accelerating science

EuCARD Journal Publication
Report number EuCARD-PUB-2012-011
Date(s), location
Imprint 2012
Title Resolution study of higher-order-mode-based beam position diagnostics using custom-built electronics in strongly coupled 3.9 GHz multi-cavity accelerating module
Author(s) Zhang, P (Manchester U. ; DESY ; Cockcroft Inst. Accel. Sci. Tech.) ; Baboi, N (DESY) ; Jones, R M (The University of Manchester / The Cockcroft Institute) ; Eddy, N (FNAL)
DOI 10.1088/1748-0221/7/11/P11016
WP 10: SC RF technology for higher intensity proton accelerators and higher energy electron linacs
Task 10.5: HOM Distribution
Abstract 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.
Published in JINST 7 (2012) P11016

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