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Runaway electron deconfinement in SPARC and DIII-D by a passive 3D coil

Izzo, V.A.; Pusztai, I.; Särkimäki, K.; Sundström, A.; Garnier, D.; e.a. (IOP, 2022-07)

The operation of a 3D coil (passively driven by the current quench loop voltage) for the deconfinement of runaway electrons is modeled for disruption scenarios in the SPARC and DIII-D tokamaks. Nonlinear MHD modeling is ...
Simultaneous measurements of unstable and stable Alfven Eigenmodes in JET

Tinguely, R. Alex; Gonzalez-Martin, J.; Puglia, P.G.; Fil, N.; Dowson, S.; e.a. (IOP, 2022-08)

In this paper, we report the novel experimental observation of both unstable and stable Toroidicity-induced Alfven Eigenmodes (TAEs) measured simultaneously in a JET tokamak plasma. The three-ion-heating scheme (D-DNBI-3He) ...
Diverted negative triangularity plasmas on DIII-D: The benefit of high confinement without the liability of an edge pedestal

Marinoni, Alessandro; Austin, M.E.; Hyatt, A.W.; Saarelma, S.; Scotti, F.; e.a. (IOP, 2021-08)

Diverted discharges at negative triangularity on the DIII-D tokamak sustain normalized confinement and pressure levels typical of standard H-mode scenarios (H98y2~1, βN~3) without developing an edge pressure pedestal, ...

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