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  • Letter
  • Open Access

Pulse magnetized superconducting bulk array undulator concept

Dian Weerakonda1,*, Anthony Dennis1, Marco Calvi2, and John Durrell1

  • *dw620@cam.ac.uk
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Phys. Rev. Research 6, L022060 – Published 11 June, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L022060

Abstract

A number of benefits result from reducing the period length of an undulator without sacrificing magnetic field strength, such as an increased photon flux and higher energy synchrotron radiation. Replacing permanent magnets with bulk high-temperature superconductors (HTSs) has proved to be an effective path towards this goal. We present a concept for a bulk HTS undulator that is magnetized via pulsed field magnetization, which is a much more compact and economical form of magnetizing HTS bulks compared to the field-cooling or zero-field cooling methods that are typically employed. The results from an experiment tailored to demonstrate the feasibility of this concept are also presented. With these results, we estimate that an undulator field of 2.3 T could be generated using this design with a magnetic gap of 4 mm and a 16 mm period length, operating at 40 K.

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Corrections

11 September, 2025

Correction: The omission of a word in the second sentence of the caption to Figure 1 has been fixed.

Article Text

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Phys. Rev. Research 6, L022060– Published 11 June, 2024
  • Received 29 November 2023
  • Accepted 18 May 2024
  • Corrected 11 September 2025
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