Concept
Matrice triangulaire
Publications associées (122)
Experiments and gyrokinetic simulations of TCV plasmas with negative triangularity in view of DTT operations
Olivier Sauter, Stefano Coda, Justin Richard Ball, Alberto Mariani, Matteo Vallar, Filippo Bagnato
Negative triangularity (NT) scenarios in TCV have been compared to positive triangularity (PT) scenarios using the same plasma shapes foreseen for divertor tokamak test tokamak operations. The experiments provided a NT/PT L-mode pair and a PT H-mode with d ...
Iop Publishing Ltd2024Physical insights from the aspect ratio dependence of turbulence in negative triangularity plasmas
Stefano Coda, Justin Richard Ball
In this work, we study the impact of aspect ratio A = R 0 / r (the ratio of major radius R 0 to minor radius r) on the confinement benefits of negative triangularity (NT) plasma shaping. We use high-fidelity flux tube gyrokinetic GENE simulations and consi ...
Iop Publishing Ltd2024First-principle based predictions of the effects of negative triangularity on DTT scenarios
Olivier Sauter, Gabriele Merlo, Alberto Mariani
Plasmas with negative triangularity (NT) shape have been recently shown to be able to achieve H-mode levels of confinement in L-mode, avoiding detrimental edge localised modes. Therefore, this plasma geometry is now studied as a possible viable option for ...
Bristol2024Study of impurity C transport and plasma rotation in negative triangularity on the TCV tokamak
Olivier Sauter, Basil Duval, Stefano Coda, Benoît Labit, Alessandro Pau, Laurie Porte, Alexander Karpushov, Antoine Pierre Emmanuel Alexis Merle, Justin Richard Ball, Dmytry Mykytchuk, Filippo Bagnato
Carbon impurity transport is studied in the TCV tokamak using a charge exchange recombination diagnostic. TCVs flexible shaping capabilities were exploited to extend previous impurity transport studies to negative triangularity (delta < 0). A practical way ...
Iop Publishing Ltd2024