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23 April 2024

» arxiv » physics/0009025

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Design, fabrication and measurement of the first rounded damped detuned accelerator structure (RDDS1)
J.W. Wang ; C. Adolphsen ; G.B. Bowden ; D.L. Burke ; J. Cornuelle ; V.A. Dolgashev ; W.B. Fowkes ; R.K. Jobe ; R.M. Jones ; K. Ko ; N. Kroll ; Z.Li ; R.J. Loewen ; D. McCormick ; R.H. Miller ; C.K. Ng ; C. Pearson ; T.O. Raubenhemer ; R. Reed ; M. Ross ; R.D. Ruth ; T. Smith ; G. Stupakov ; T. Higo ; Y. Funahashi ; Y. Higashi ; T. Higo ; N. Hitomi ; T. Suzuki ; K. Takata ; T. Takatomi ; N. Toge ; Y. Watanabe ;
Date:	6 Sep 2000
Journal:	eConf C000821 (2000) TUA03
Subject:	Accelerator Physics \| physics.acc-ph
Abstract:	As a joint effort in the JLC/NLC research program, we have developed a new type of damped detuned accelerator structure with optimized round-shaped cavities (RDDS). This paper discusses some important R&D aspects of the first structure in this series (RDDS1). The design aspects covered are the cell design with sub-MHz precision, HOM detuning, coupling and damping technique and wakefield simulation. The fabrication issues covered are ultra-precision cell machining with micron accuracy, assembly and diffusion bonding technologies to satisfactorily meet bookshelf, straightness and cell rotational alignment requirements. The measurements described are the RF properties of single cavities and complete accelerator section, as well as wakefields from the ASSET tests at SLAC. Finally, future improvements are also discussed.
Source:	arXiv, physics/0009025
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