Author: Perera, L.P.
Paper Title Page
THPPD020 Test of a 1.8 Tesla, 400 Hz Dipole for a Muon Synchrotron 3542
  • D.J. Summers, L.M. Cremaldi, T.L. Hart, L.P. Perera, M. Reep
    UMiss, University, Mississippi, USA
  • S.U. Hansen, M.L. Lopes
    Fermilab, Batavia, USA
  • J. Reidy
    Oxford High School, Mississippi, USA
  • H. Witte
    BNL, Upton, Long Island, New York, USA
  Funding: Supported by DE-FG05-91ER40622.
A 1.8 Tesla dipole magnet using 0.011" AK Steel TRAN-COR H-1 grain oriented silicon steel laminations has been constructed as a prototype for a muon synchrotron ramping at 400 Hz. Following the practice in large 3 phase transformers and our own OPERA-2D simulations, joints are mitered to take advantage of the magnetic properties of the steel which are most effective in the direction in which the steel was rolled. Measurements with a Hysteresigraph 5500 and Epstein Frame show a high magnetic permeability which minimizes stored energy in the yoke so the magnet can ramp quickly with modest voltage. A power supply with a fast IGBT switch and a polypropylene capacitor was constructed. Coils are wound with 12 gauge copper wire which will eventually be cooled with with water flowing in stainless steel tubes. The magnetic field was measured with an F. W. Bell 5180 peak sensing Hall Probe connected to a Tektronics TDS3054B oscilloscope.