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24 April 2024

» arxiv » 1301.5561

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Cavity beam position monitor system for the Accelerator Test Facility 2
Y. I. Kim ; R. Ainsworth ; A. Aryshev ; S. T. Boogert ; G. Boorman ; J. Frisch ; A. Heo ; Y. Honda ; W. H. Hwang ; J. Y. Huang ; E.-S. Kim ; S. H. Kim ; A. Lyapin ; T. Naito ; J. May ; D. McCormick ; R. E. Mellor ; S. Molloy ; J. Nelson ; S. J. Park ; Y. J. Park ; M. Ross ; S. Shin ; C. Swinson ; T. Smith ; N. Terunuma ; T. Tauchi ; J. Urakawa ; G.R. White ;
Date:	23 Jan 2013
Abstract:	The Accelerator Test Facility 2 (ATF2) is a scaled demonstrator system for final focus beam lines of linear high energy colliders. This paper describes the high resolution cavity beam position monitor (BPM) system, which is a part of the ATF2 diagnostics. Two types of cavity BPMs are used, C-band operating at 6.423 GHz, and S-band at 2.888 GHz with an increased beam aperture. The cavities, electronics, and digital processing are described. The resolution of the C-band system with attenuators was determined to be approximately 250 nm and 1 m for the S-band system. Without attenuation the best recorded C-band cavity resolution was 27 nm.
Source:	arXiv, 1301.5561
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