Clinton C. Petty

TL;DR: In this paper, the edge turbulence was modified to achieve stationary, high confinement operation without edge localized mode (ELM) instabilities and with no net external torque input, which achieved an additional confinement challenge that is usually difficult at low torque.

TL;DR: In this paper, the design of a relatively compact ignition tokamak satisfies reasonable engineering constraints on the superconducting toroidal field coils and central solenoid, and allows for a sufficiently long burn time for the plasma current to relax to its final state.

TL;DR: In this article, a range of on-axis and off-axis beam injection scenarios are employed to vary relevant parameters such as the character of the background microturbulence and the value of Eb/Te, where Eb is the energetic ion energy and Te the electron temperature.

TL;DR: In this article, a range of on-axis and off-axis beam injection scenarios are employed to vary relevant parameters such as the character of the background microturbulence and the value of Eb/Te, where Eb is the energetic ion energy and Te the electron temperature.

TL;DR: In this article, the authors show that changing from an ion temperature gradient (ITG) to a trapped electron mode (TEM) dominant turbulence regime (based on linear gyrokinetic simulations) results experimentally in a strong density pump-out (defined as a reduction in line-averaged density) in low collisionality, low power H-mode plasmas.