• Open Access

Magnesium diboride on inner wall of copper tube: A test case for superconducting radio frequency cavities

Wenura K. Withanage, N. H. Lee, Sashank V. Penmatsa, M. A. Wolak, A. Nassiri, and X. X. Xi
Phys. Rev. Accel. Beams 20, 102002 – Published 31 October 2017
An article within the collection: SRF2017 Conference Edition

Abstract

Superconductor magnesium diboride is considered one of the viable materials to substitute bulk niobium for superconducting radio frequency cavities. Utilizing a MgB2 coating on the inner wall of a copper cavity will allow operation at higher temperatures (20–25 K) than Nb cavities due to the high transition temperature of MgB2 (39 K) and the high thermal conductivity of Cu. In this paper, we present results of MgB2 coating on Cu tubes with similar dimensions to a 3 GHz cavity, as the first step towards coating the actual cavity, using the hybrid physical chemical vapor deposition technique. The results show successful coating of a uniform MgB2 layer on the inner wall of the Cu tubes with Tc as high as 37 K.

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  • Received 18 August 2017

DOI:https://doi.org/10.1103/PhysRevAccelBeams.20.102002

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Published by the American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
Accelerators & Beams

Collections

This article appears in the following collection:

SRF2017 Conference Edition

A collection of articles that expand upon original research presented at the 18th International Conference on RF Superconductivity (SRF 2017) (17-21 July 2017, Lanzhou, China).

Authors & Affiliations

Wenura K. Withanage1,*, N. H. Lee1, Sashank V. Penmatsa1, M. A. Wolak1,†, A. Nassiri2,3, and X. X. Xi1

  • 1Department of Physics, Temple University, Philadelphia, Pennsylvania 19122, USA
  • 2Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 3College of Engineering, Michigan State University, East Lansing, Michigan 48824, USA

  • *tue76590@temple.edu
  • Present address: Sandia National Laboratories, Albuquerque, NM 87185, USA.

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Vol. 20, Iss. 10 — October 2017

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