title: First results of the ITER-relevant negative ion beam test facility ELISE (invited).
abstract: An important step in the European R&D roadmap towards the neutral beam heating systems of ITER is the new test facility ELISE (Extraction from a Large Ion Source Experiment) for large-scale extraction from a half-size ITER RF source. The test facility was constructed in the last years at Max-Planck-Institut für Plasmaphysik Garching and is now operational. ELISE is gaining early experience of the performance and operation of large RF-driven negative hydrogen ion sources with plasma illumination of a source area of 1 × 0.9 m(2) and an extraction area of 0.1 m(2) using 640 apertures. First results in volume operation, i.e., without caesium seeding, are presented.
authors.affiliation: Max-Planck-Institut für Plasmaphysik (IPP), EURATOM Association, Boltzmannstraße 2, 85748 Garching, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Fantz
authors.affiliation: Max-Planck-Institut für Plasmaphysik (IPP), EURATOM Association, Boltzmannstraße 2, 85748 Garching, Germany.
authors.forename: P
authors.initials: P
authors.lastname: Franzen
authors.affiliation: Max-Planck-Institut für Plasmaphysik (IPP), EURATOM Association, Boltzmannstraße 2, 85748 Garching, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Heinemann
authors.affiliation: Max-Planck-Institut für Plasmaphysik (IPP), EURATOM Association, Boltzmannstraße 2, 85748 Garching, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Wünderlich