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'Journal of Accelerator Conferences Website' (JACoW) is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.


https://doi.org/10.18429/JACoW-LINAC2022-THPOGE19
Title Field Shielding of NbTiN Based Multilayer Structure for Accelerating Cavities
Authors
  • I.H. Senevirathne, J.R. Delayen, A.V. Gurevich
    ODU, Norfolk, Virginia, USA
  • D.R. Beverstock
    The College of William and Mary, Williamsburg, Virginia, USA
  • D.R. Beverstock, J.R. Delayen, A-M. Valente-Feliciano
    JLab, Newport News, Virginia, USA
Abstract Over the past few decades, bulk niobium (Nb) has been the material of choice for superconducting radio frequen-cy (SRF) cavities used in particle accelerators to achieve higher accelerating gradients and lower RF losses. Multi-layer (SIS) structures consisting of alternating thin layers of superconductor(S) and insulator(I) deposited on a bulk Nb have been proposed to enhance the peak surface magnetic field and sustain a higher accelerating gradient. In this study, multilayers based NbTiN and AlN deposited on bulk Nb are used to test the proposed enhancement using the DC magnetic Hall probe technique. The tech-nique detects a penetrating magnetic field through the multilayer sample as it is placed under an external mag-netic field produced by a magnetic coil. This work re-ports the characterization and measurements of the mag-netic field of full flux penetration through single layers of NbTiN and bilayers of NbTiN/AlN on bulk Nb.
Funding NSF Grants PHY-1734075 and PHY-1416051, and DOE Awards DE-SC0010081 and DE-SC0019399
Paper download THPOGE19.PDF [1.421 MB / 4 pages]
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Conference LINAC2022
Series International Linear Accelerator Conference (31st)
Location Liverpool, UK
Date 28 August-02 September 2022
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Peter McIntosh (STFC DL, Daresbury, UK); Graeme Burt (Lancaster Univ., Lancaster, UK); Robert Apsimon (Lancaster Univ., Lancaster, UK); Volker R.W. Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-215-8
Online ISSN 2226-0366
Received 24 August 2022
Revised 01 September 2022
Accepted 08 September 2022
Issue Date 15 September 2022
DOI doi:10.18429/JACoW-LINAC2022-THPOGE19
Pages 836-839
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.