6 papers · 1 filter
Applications of a novel model-based real-time observer for electron density profile control experiments in TCV
F. Pastore, O. Sauter, F. Felici +12
Real-time control of tokamak plasmas encompasses sustaining a high-performance stationary state, avoiding disruptions, and managing ramp-up and ramp-down phases. Real-time estimati…
On the interplay between plasma triangularity and micro-tearing turbulence
Alessandro Balestri, Justin Ball, Stefano Coda
In this work, we study the interplay between triangularity and micro-tearing turbulence using linear and nonlinear flux tube GENE simulations. We consider scenarios with negative a…
Edge Radial Electric Field in Positive and Negative Triangularity Plasmas in the TCV Tokamak
S. Rienäcker, P. Hennequin, L. Vermare +10
We present the first edge measurements in negative triangularity (NT) TCV plasmas. The Doppler backscattering measurements of reveal a significant imp…
On the feasibility of Ohmically heated negative triangularity tokamak power plants
Alessandro Balestri, Justin Ball, Stefano Coda
Negative triangularity tokamak plasmas feature naturally enhanced confinement in the so-called L-mode regime, irrespective of the power of external heating. This is in contrast to…
Physics of the low momentum diffusivity regime in tokamaks and its experimental applicability
Haomin Sun, Justin Ball, Stephan Brunner +9
Strong plasma flow shear is beneficial for reducing turbulent transport. However, traditional methods of driving flow shear do not scale well to large devices such as f…
Physical insights from the aspect ratio dependence of turbulence in negative triangularity plasmas
Alessandro Balestri, Justin Ball, Stefano Coda +3
In this work, we study the impact of aspect ratio A = R0 /r (the ratio of major radius R0 to minor radius r) on the confinement benefits of Negative Triangularity (NT) plasma shapi…