Hannover 2020 – scientific programme
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P: Fachverband Plasmaphysik
P 9: Helmholtz Graduate School 2 and Magnetic confinement 2
P 9.5: Talk
Tuesday, March 10, 2020, 15:45–16:10, b305
Assessment of plasma edge transport in Neon seeded plasmas in disconnected double null configuration in EAST — •Dieter Boeyaert1,3, Sven Wiesen1, Marco Wischmeier2, Wouter Dekeyser3, Stefano Carli3, Liang Wang4, Fang Ding4, Kedong Li4, Yunfeng Liang1,4, Martine Baelmans3, and EAST -team5 — 1Forschungszentrum Jülich GmbH, Institut für Energie- und Klimaforschung - Plasmaphysik, 52425 Jülich, Germany — 2Max-Planck-Institut für Plasmaphysik, Boltzmannstraße 2, 85748 Garching, Germany — 3KU Leuven, Department of Mechanical Engineering, Celestijnenlaan 300, 3001 Leuven, Belgium — 4Institute of Plasma Physics, Hefei 230031, China — 5see appendix of Wan B.N. et al., Nucl. Fusion 2019
Power and particle exhaust are key for future nuclear fusion reactors [1]. Dissipation is determined by the amount of power, particle and momentum losses inside the Scrape-Off Layer (SOL). Under high power conditions in future all-metal fusion devices like ITER or DEMO, extrinsic impurity seeding is required to induce divertor detachment through impurity radiation [1].
This contribution analyzes Ne seeded and unseeded DDN deuterium discharges at EAST with decreasing separation between the separatrices, both with experimental data from EAST and SOLPS-ITER simulations [2]. Ne seeded discharges in H-mode from the 2019 EAST campaign are studied (heating power P_heat = 2.5 MW, plasma current I_p = 0.4MA, and toroidal field B_p = 2.4T). [1] M. Wischmeier et al., Nucl. Mater. 2015 [2] S. Wiesen et al., Nucl. Mat. 2015