Author: Jochen, G.
Paper Title Page
THPPD044 Fabrication and Testing of Curved Test Coil for FRIB Fragment Separator Dipole 3611
  • S.A. Kahn
    Muons, Inc, Batavia, USA
  • J. Escallier, R.C. Gupta, G. Jochen, Y. Shiroyanagi
    BNL, Upton, Long Island, New York, USA
  Funding: Supported in part by SBIR Grant 4746 · 11SC06273
A critical element of the fragment separator region of the Facility for Rare Isotope Beams (FRIB) is the 30° dipole bend magnet. Because this magnet will be subjected to extremely high radiation and heat loads, operation at 4.5 K would not be possible. High temperature superconductors which have been shown to be radiation resistant and can operated in the 30-50 K temperature range which is more effective for heat removal. An efficient design for this magnet would make use of coils that follow the curvature of the magnet. Winding curved coils with negative curvature are difficult as the coil tends to unwind during the process. As part of an R&D effort for this magnet we are winding a ¼ scale test coil for this magnet with YBCO conductor and are testing it at 77 K. This paper will discuss the winding process and the test results of this study.