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HTS Undulator Design Study and First Results: Two promising magnet concepts

Krasch, B. ORCID iD icon 1; Abusaif, F. 1; Arndt, T. ORCID iD icon 2; Glamann, N. 1; Grau, A. 1; Nast, R. 2; de Jauregui, D. Saez 1
1 Institut für Beschleunigerphysik und Technologie (IBPT), Karlsruher Institut für Technologie (KIT)
2 Institut für Technische Physik (ITEP), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Undulators are X-ray sources that are widely utilised
in advanced synchrotron radiation sources and free-electron laser
facilities. Due to sustainability and energy efficiency, the devel-
opment focuses on small-scale, high-field, and especially compact
undulators with short period lengths (≤ 10 mm) and narrow
magnetic gaps (≤ 4 mm). Therefore, high-temperature supercon-
ducting (HTS) tapes, which can provide a high critical current
density and high critical magnetic fields at higher temperatures,
are extensively used and investigated at the Karlsruhe Institute of
Technology. A new concept of superconducting undulators (SCUs)
was introduced and further developed by laser-scribing a meander
pattern into the superconducting layer to achieve a quasi-sinusoidal
current path through the HTS tape. Here we present the complete
and final design of such a compact SCU, in particular our latest
results regarding the design of the liner with its tapering in the
warm region, as well as the cryogenic cooling concept.


Postprint §
DOI: 10.5445/IR/1000178834
Veröffentlicht am 29.04.2026
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Institut für Technische Physik (ITEP)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 08.2025
Sprache Englisch
Identifikator ISSN: 1051-8223, 1558-2515, 2378-7074
KITopen-ID: 1000178834
HGF-Programm 38.05.03 (POF IV, LK 01) High Temperature Superconductivity
Weitere HGF-Programme 54.11.11 (POF IV, LK 01) Accelerator Operation, Research and Development
Erschienen in IEEE Transactions on Applied Superconductivity
Verlag Institute of Electrical and Electronics Engineers (IEEE)
Band 35
Heft 5
Seiten 1–6
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Globale Ziele für nachhaltige Entwicklung Ziel 7 – Bezahlbare und saubere Energie
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