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

We report on the performance of a new type of helical undulator based on bulk single-grain GdBa_{2}Cu_{3}O_{7−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. T...

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Bibliographic Details
Published in:Physical review research 2023-08, Vol.5 (3), p.L032020, Article L032020
Main Authors: Calvi, Marco, Hellmann, Sebastian, Prat, Eduard, Schmidt, Thomas, Zhang, Kai, Dennis, Anthony R., Durrell, John H., Ainslie, Mark D.
Format: Article
Language:English
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Summary:We report on the performance of a new type of helical undulator based on bulk single-grain GdBa_{2}Cu_{3}O_{7−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.
ISSN:2643-1564
2643-1564
DOI:10.1103/PhysRevResearch.5.L032020