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  • Letter
  • Open Access

GdBCO bulk superconducting helical undulator for x-ray free-electron lasers

Marco Calvi*, Sebastian Hellmann, Eduard Prat, Thomas Schmidt, and Kai Zhang†

Anthony R. Dennis and John H. Durrell

Mark D. Ainslie

  • Paul Scherrer Institute, Villigen PSI, Switzerland

  • Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, United Kingdom

  • Department of Engineering, King's College London, Strand, London WC2R 2LS, United Kingdom

  • *marco.calvi@psi.ch.
  • †Also at Zhangjiang Laboratory, Shanghai, 201210, China.
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Phys. Rev. Research 5, L032020 – Published 10 August, 2023

DOI: https://doi.org/10.1103/PhysRevResearch.5.L032020

Abstract

We report on the performance of a new type of helical undulator based on bulk single-grain GdBa2Cu3O7−δ high-temperature superconductors. The 104-mm-long prototype with a period length of 16 mm and a magnetic aperture of 4 mm achieves an on-axis field above 2.5 T at a temperature of 10 K. This undulator technology has the potential to change the design parameters of future x-ray free-electron lasers, making them more compact and powerful.

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Corrections

18 September, 2023

Correction: The omission of a statement of thanks in the Acknowledgment section has been remedied.

Article Text

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Phys. Rev. Research 5, L032020– Published 10 August, 2023
  • Received 11 April 2023
  • Accepted 22 July 2023
  • Corrected 18 September 2023
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