2 papers
physics.plasm-ph2025
Disentangling Core and Edge Mechanisms of the Density Limit in DIII-D Negative Triangularity Plasmas
R. Hong, P. H. Diamond, O. Sauter +14
The density limit is investigated in the DIII-D negative triangularity (NT) plasmas which lack a standard H-mode edge. We find the limit may not be a singular disruptive boundary b…
physics.plasm-ph2024
Real-time steerable frequency-stepped Doppler Backscattering (DBS) System for local helicon wave electric field measurements on the DIII-D tokamak
S. Chowdhury, N. A. Crocker, W. A. Peebles +11
A new frequency-stepped Doppler backscattering (DBS) system has been integrated with a real-time steerable electron cyclotron heating launcher to probe local background turbulence…