Design, Construction, and Testing of 0.5-m, 18-mm Period Nb₃Sn Superconducting Undulator Magnets

Journal Article · Thu Feb 24 00:00:00 EST 2022 · IEEE Transactions on Applied Superconductivity

DOI:https://doi.org/10.1109/tasc.2022.3152712· OSTI ID:1885029

Kesgin, Ibrahim ^[1]; Kasa, Matthew ^[1]; MacDonald, Stephen ^[1]; Turrioni, Daniele ^[2]; Barzi, Emanuela ^[2]; Shiroyanagi, Yuko ^[1]; Hasse, Quentin ^[1]; Ivanyushenkov, Yury ^[1]; Zlobin, Alexander ^[2]; Gluskin, Efim ^[1]

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1. Argonne National Lab. (ANL), Lemont, IL (United States)
2. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

We report design and fabrication of a new Nb₃Sn-based superconducting undulator (SCU) are underway at the Advanced Photon Source (APS) of Argonne National Laboratory in collaboration with Fermilab and Lawrence Berkeley National Laboratory. To develop a robust and reliable fabrication process, the magnet development consists of several steps. First, magnetic and mechanical simulations were performed to optimize the magnet design; then, the design matured further by fabricating and testing a series of very short prototypes, ~8 cm long with a period length of 18 mm. These short prototype studies were previously reported. Second, the design was scaled to an intermediate length of ~0.5 m. These two steps led to the final design of ~1.1–m-long magnets, which are currently being fabricated. The quench behavior of each 0.5-m-long undulator magnet, as well as undulator assemblies from these magnets, was studied. The first SCU magnet assembly did not meet the design specifications due to the breakdown of the insulation. With an improved design and fabrication process based on lessons learned, the second SCU assembly achieved the design undulator field of 1.2 T. The design was further optimized, and the third set of magnets was fabricated and successfully tested.

• Research Organization: Argonne National Laboratory (ANL), Lemont, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES)
• Grant/Contract Number: AC02-06CH11357; AC02-07CH11359
• OSTI ID: 1885029
• Report Number(s): FERMILAB-PUB-22-259-TD; TUE-OR1-102-04; oai:inspirehep.net:2059962
• Journal Information: IEEE Transactions on Applied Superconductivity, Journal Name: IEEE Transactions on Applied Superconductivity Journal Issue: 6 Vol. 32; ISSN 1051-8223
• Publisher: IEEE
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
Nb3Sn
SCU
magnet design
quench
stability
superconducting undulator
training.