Some important modern stellarator experiments are Wendelstein 7-X, in Germany, the Helically Symmetric Experiment (HSX) in USA and the Large Helical Device, in Japan.
He was the author of a series of works with John Johnson and Katherine Weimer on equilibria and instabilities in Tokamak and Stellarator plasmas in magnetohydrodynamics.
Research centered on three plasma confinement designs; the stellarator headed by Lyman Spitzer at the Princeton Plasma Physics Laboratory, the toroidal pinch or Perhapsatron led by James Tuck at the Oak Ridge National Laboratory and the magnetic mirror devices at the Livermore National Laboratory led by Richard F. Post.