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Experiments on excitation of Alfvén eigenmodes by alpha-particles with bump-on-tail distribution in JET DTE2 plasmas

Sharapov, S.E.; Oliver, H.J.C.; Garcia, J.; Keeling, D.L.; Dreval, M.; e.a. (IOP, 2023-10)

Dedicated experiments were performed in JET DTE2 plasmas for obtaining an α-particle bump-on-tail (BOT) distribution aiming at exciting Alfvén Eigenmodes (AEs). NBI-only heating with modulated power was used so that ...
Inference of Main Ion Particle Transport Coefficients with Experimentally Constrained Neutral Ionization during Edge Localized Mode Recovery on DIII-D

Rosenthal, Aaron M.; Hughes, Jerry W.; Laggner, Florian M.; Odstrcil, Tomas; Bortolon, Alessandro; e.a. (IOP, 2022-11)

The plasma and neutral density dynamics after an Edge Localized Mode (ELM) are investigated and utilized to infer the plasma transport coefficients for the density pedestal. The LLAMA diagnostic provides sub-millisecond ...
Examination of stiff ion temperature gradient mode physics in simulations of DIII-D H-mode transport

Holland, C.; Luce, T.; Grierson, B.A.; Smith, S.P.; Marinoni, Alessandro; e.a. (IOP, 2021-05)

A systematic evaluation of gyrokinetic and gyrofluid model predictions of ion temperature gradient (ITG) stability and transport using parameters from DIII-D high confinement mode (H-mode) plasmas has been performed. The ...

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