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URLhttps://doi.org/10.18429/JACoW-IPAC2025-WEAD2
TitleHigh power RF testing of high temperature superconductors
Authors
  • A. Dhar, E. Nanni, G. Le Sage
    SLAC National Accelerator Laboratory
  • J. Golm
    Helmholtz Institute Jena
  • J. Gutierrez
    Institut de Ciència de Materials - CSIC
  • P. Krkotic, S. Calatroni, W. Wuensch
    European Organization for Nuclear Research
AbstractSuperconducting materials such as niobium have been extremely useful for accelerator technology but require low temperature operation ~2 K. The development of high temperature superconductors (HTS) is promising due to their operating temperatures being closer to that of liquid nitrogen ~77 K. This work aims to determine the high-power RF performance of these materials at X-band (11.424 GHz). We have tested several types of rare earth barium copper oxide (REBCO) materials, such as films deposited by electron-beam physical vapor deposition, coated conductors soldered to a copper substrate, and solid pucks formed from powder. RF testing was done via a hemispherical TE mode cavity that maximizes the magnetic field and minimizes the electric field on a 2-inch sample region. We will report on surface resistance vs temperature measurements at low and high power,as well as RF testing of a pulse compression cavity lined with REBCO coated conductors.
Paperdownload: WEAD2.pdf
CiteBibTeX, LaTeX, Text/Word, RIS, EndNote
Conference16th International Particle Accelerator Conference
Series
LocationTaipei, Taiwan
Date01-06 Jun 2025
PublisherJACoW Publishing, Geneva, Switzerland
Editorial Board* Ming-Chyuan Lin - National Synchrotron Radiation Research Center * Yoichi Sato - KEK * Jui-Che Huang - National Synchrotron Radiation Research Center * David Button - Australian Nuclear Science and Technology Organisation * Ping-Shun Chuang - National Synchrotron Radiation Research Center
Online ISBN978-3-95450-248-6
Online ISSN2673-5490
Received28 May 2025
Revised02 June 2025
Accepted03 June 2025
Issued05 November 2025
DOI10.18429/JACoW-IPAC2025-WEAD2
Pages1662-1665