Author: Kesgin, I.
Paper Title Page
THOYSP3
Progress on the Nb3Sn Superconducting Undulator Development at the Advanced Photon Source  
 
  • I. Kesgin, E. Gluskin, Q.B. Hasse, Y. Ivanyushenkov, M. Kasa, S.W.T. MacDonald, Y. Shiroyanagi
    ANL, Lemont, Illinois, USA
  • D. Arbelaez, S. Prestemon
    LBNL, Berkeley, California, USA
  • E.Z. Barzi, D. Turrioni, A.V. Zlobin
    Fermilab, Batavia, Illinois, USA
 
  Funding: This work was supported by the U.S. Department of Energy, Office of Science, under Contract No. DE-ACO2-O6CH11357.
The Nb3Sn-based superconducting undulator (SCU) is a strong candidate to outperform its well-establish counterparts, such as the NbTi-based SCU and cryogenically cooled permanent magnet undulators, over a wide range of undulator period lengths: 10 mm or larger. Thus, the Advanced Photon Source (APS) at Argonne National Laboratory has initiated a project, in collaboration with Fermilab and Berkeley Lab, aiming to establish a robust technology for the fabrication of a Nb3Sn SCU and validate its operational and radiation performance on the APS storage ring. To accomplish this, first, modeling-driven optimizations were employed to address the magnetic and mechanical design of the undulator magnets, and a series of 4.5-period prototypes subsequently confirmed the design specifications. Then, these short prototypes were successfully scaled to 0.5-m-long magnets, confirming the maximum design field of 1.2 T that is at least 20% higher than a NbTi version with the same gap and period length (9.5 mm and 18 mm, respectively). Fabrication of the final 1.1-m-long magnets is currently underway. Further details will be presented.
 
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