Rapid bifurcations in the plasma response to slowly varying n= 2 magnetic fields are
observed as the plasma transitions into and out of edge-localized mode (ELM) suppression …

Density pumpout and edge-localized mode (ELM) suppression by applied n= 2 magnetic
fields in low-collisionality DIII-D plasmas are shown to be correlated with the magnitude of …

Realization of a high-current (approaching 1 MA) post-disruption runaway electron (RE)
beam in DIII-D yields controlled access to very low edge safety factor (qa) conditions. This …

Two-fluid nonlinear MHD simulations using the TM1 code demonstrate that the formation of
magnetic islands at the top and bottom of the H-mode pedestal, together with the strong …

A database has been developed to study the evolution, the nonlinear effects on equilibria,
and the disruptivity of locked and quasi-stationary modes with poloidal and toroidal mode …

Locked modes are known to be one of the major causes of disruptions, but the physical
mechanisms by which locking leads to disruptions are not well understood. Here we analyze …

Systematic variation of the pre-disruption core electron temperature (T e) from 1 to 12 keV
using an internal transport barrier scenario reveals a dramatic increase in the production …

Kinetic equilibrium reconstructions make use of profile information such as particle density
and temperature measurements in addition to magnetics data to compute a self-consistent …

This paper presents a multi-machine, multi-parameter scaling law for the n= 2 core resonant
error field threshold that leads to field penetration, locked modes, and disruptions. Here, n is …

Abstract A Machine-Learning (ML) based detection scheme that automatically detects Alfvén
Eigenmodes (AE) in a labelled DIII-D database is presented here. Controlling AEs is …