Neutral-Beam Current-Driven High-Poloidal-Beta Operation of the DIII-D Tokamak

198853 citationsJournal Article

Authors

T.C. Simonen · General Atomics (United States)

M. Matsuoka · General Atomics (United States)

D. K. Bhadra · General Atomics (United States)

K.H. Burrell · General Atomics (United States)

R.W. Callis · General Atomics (United States)

M. S. Chance · General Atomics (United States)

M. S. Chu

Abstract

Neutral-beam current-drive experiments in the DIII-D tokamak with a single null poloidal divertor are described. A plasma current of 0.34 MA has been sustained by neutral beams alone, and the energy confinement is of $H$-mode quality. Poloidal $\ensuremath{\beta}$ values reach 3.5 without disruption or coherent magnetic activity suggesting that these plasmas may be entering the second stability regime.

Topics & Keywords

Magnetic confinement fusion research Superconducting Materials and Applications Fusion materials and technologies

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Physical Review Letters

Volume 61, Issue 15, pp. 1720-1723

DOI: 10.1103/physrevlett.61.1720

Field-Weighted Citation Impact: 7.67