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https://doi.org/10.18429/JACoW-SRF2019-MOP078
Title Adjustable Power Coupler for NICA HWR Cavities
Authors
  • S.V. Matsievskiy, M.V. Lalayan
    MEPhI, Moscow, Russia
  • D. Bychanokpresenter
    INP BSU, Minsk, Belarus
  • M. Gusarova
    JINR, Dubna, Moscow Region, Russia
Abstract Current results on input power coupler development for Half-Wave superconducting accelerating cavity proposed for Nuclotron-based Ion Collider fAcility (NICA) collider injector upgrade are discussed. Two coupler designs are considered, first one is a low-power coupler for cavity tests and the second one is a high-power operational coupler. Both devices are of coaxial type with capacitive coupling; high-power coupler utilizes single ceramic vacuum window. NICA is designed to accelerate different types of ions. Due to the variable intensity of ion sources, beam current will vary in wide range. In order to ensure efficient acceleration, power coupler must be highly adjustable in terms of coupling coefficient. This introduces excessive mechanical stress in the ceramic RF window due to the bellows deformation. In order to mitigate this effect bellows were substituted with sliding contacts. This paper discusses new coupler design and its electrical, mechanical and thermal properties.
Paper download MOP078.PDF [1.893 MB / 3 pages]
Poster download MOP078_POSTER.PDF [1.296 MB]
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Conference SRF2019
Series International Conference on RF Superconductivity (19th)
Location Dresden, Germany
Date 30 June-05 July 2019
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Peter Michel (HZDR, Dresden, Germany); André Arnold (HZDR, Dresden, Germany); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-211-0
Online ISSN ""
Received 23 June 2019
Accepted 30 June 2019
Issue Date 14 August 2019
DOI doi:10.18429/JACoW-SRF2019-MOP078
Pages 260-262
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.