SMuK 2023 – wissenschaftliches Programm
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P: Fachverband Plasmaphysik
P 8: Plasma Wall Interaction I/HEPP IV
P 8.1: Hauptvortrag
Dienstag, 21. März 2023, 17:00–17:30, CHE/0091
Fuel retention and removal in the JET tokamak — •Dmitry Matveev1, David Douai2, Tom Wauters3, Sebastijan Brezinsek1, and JET Contributors4 — 1Forschungszentrum Juelich GmbH, EURATOM Association, 52425 Jülich, Germany — 2CEA Cadarache, IRFM, F-13108 Saint Paul Lez Durance, France — 3ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, F-13067 St Paul Lez Durance Cedex, France — 4See the author list of J. Mailloux et al, Nucl. Fusion 62, 042026 (2022)
The control of fuel retention remains a critical issue for future fusion reactors due to tritium fuel self-sufficiency and related radiation safety requirements. This talk will cover fuel retention studies in the JET tokamak over the past decades, from the carbon wall configuration and the first deuterium-tritium experiment (DTE1) to the beryllium-tungsten ITER-Like Wall (ILW) configuration and the recent second deuterium-tritium campaign (DTE2). Fuel retention mechanisms, the aspects of long-term and short-term fuel retention, and post-discharge outgassing of hydrogen isotopes from tokamak wall materials, as well as wall cleaning techniques and respective fuel removal experiments will be addressed.