Potential damage to dc superconducting magnets due to high frequency electromagnetic wavesStudies of a d.c. superconducting magnet coil indicate that the large coil behaves as a straight waveguide structure. Voltages between layers within the coil sometimes exceeded those recorded at terminals where protective resistors are located. Protection of magnet coils against these excessive voltages could be accomplished by impedance matching throughout the coil system. The wave phenomenon associated with superconducting magnetic coils may create an instability capable of converting the energy of a quiescent d.c. superconducting coil into dissipative a.c. energy, even in cases when dielectric breakdown does not take place.
Gabriel, G. J. (Notre Dame, University Notre Dame, Ind., United States)
Burkhart, J. A. (NASA Lewis Research Center Cleveland, Ohio, United States)
August 9, 2013
January 1, 1977
Electronics And Electrical Engineering
Meeting: Symposium on Engineering Problems of Fusion Research