Some Unsolved Challenges in RF Heating and Current Drive
Authors: Nathaniel J. Fisch
Abstract:
Several unsolved challenges in rf heating and current drive are highlighted. These include current drive in magnetic geometries in which the toroidal magnetic fi eld cannot be assumed to be
dominant, current start-up with hyper-resistivity, current drive with oscillating parameters, and
synergistic effects between current drive and alpha channeling. These challenges are not necessarily
straightforward to address, and it is possible that the challenges cannot even be met, but were they
met, at least in some cases, there is the potential of signifi cant consequence.
__________________________________________________
Submitted to: Fusion Science and Technology (April 2013)
__________________________________________________
Download PPPL-4939 (pdf 274 KB 24 pp)
__________________________________________________