QH-mode in Low Rotation, ITER-Similar Plasmas Using Static Non-axisymmetric Magnetic Fields

POSTER

Abstract

\mbox{DIII-D} experiments have shown that static 3D magnetic fields can be used to maintain the edge rotation shear required for ELM-stable operation in QH-mode even with zero-net torque from neutral beam injection (NBI). These results have been obtained in ITER-similar shape plasmas with ITER-level collisionality, normalized beta, and confinement quality. New experiments are planned to extend the previous results to conditions closer yet to those of ITER: 3D field application using coils external to the vessel, small co-$I_p$ NBI torque, and low $q_{95}\sim 3$. Results will be discussed.

*Work supported by US DOE under DE-FC02-04ER54698, DE-AC02-09CH11466, and DE-AC52-07NA27344.

Authors

  • A.M. Garofalo

    • General Atomics
  • K.H. Burrell

    • General Atomics
  • J.-K. Park

  • W.M. Solomon

    • PPPL
  • M.E. Fenstermacher

    • LLNL
    • Lawrence Livermore National Laboratory
  • M.J. Lanctot

    • LLNL