A PROOF OF PRINCIPLE OF IMPOSED DYNAMO CURRENT DRIVE: DEMONSTRATION OF SUFFICIENT CONFINEMENT

作者：Jarboe T R^*; Hansen C J; Hossack A C; Marklin G J; Morgan K D; Nelson B A; Sutherland D A; Victor B S

来源：Fusion Science and Technology, 2014, 66(3): 369-384.

DOI：10.13182/fst14-782

• spheromak
• imposed dynamo current drive
• confinement

The conceptual design of an experiment for demonstrating and developing the efficient sustainment of a spheromak with sufficient confinement is presented. "Sufficient" means that the current drive power can heat the plasma to its stability beta limit. Previous transient experiments showing sufficient confinement in the kilo-electron-volt temperature range with no external toroidal field coil, recent results on Helicity Injected Torus with Steady Inductive (HIT-SI) showing sustainment with sufficient confinement, the potential of imposed dynamo current drive (IDCD) of solving other fusion issues, and a very attractive reactor concept justify a proof-of-principle experiment for a high-beta spheromak sustained by IDCD. A machine with 1-m minor radius with the required density control, wall loading, and neutral shielding for a 10-s pulse is described. Peak temperatures of 3 keV and toroidal currents of 3.2 MA and 16% wall-normalized plasma beta are envisioned.

• 出版日期2014-11