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Abstract: An introduction and the status of RandD activities for a high-resolution,-cold- beam position monitor BPM and the related read-out electronics arediscussed. Two different BPM detector concepts, to be attached to the SCquadrupole and located inside the ILC cryomodule, are currently underinvestigation: A resonant dipole-mode cavity-style BPM pickup, developed atFermilab, and a re-entrant resonant coaxial waveguide BPM, designed byCEA-Saclay. While the 1.5 GHz dipole-mode cavity BPM is still in the RandD phase,the re-entrant BPM has already passed first beam tests, including its read-outsystem. Furthermore, the LAPP group is developing radiation tolerant digitalread-out systems, which are tested at the CLIC test facility CTF.



Author: M. Wendt, T. Lefevre, C. Simon, S. Vilalte

Source: https://arxiv.org/







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