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First results of the ITER-relevant negative ion beam test facility ELISE (invited)

2013; American Institute of Physics; Volume: 85; Issue: 2 Linguagem: Inglês

10.1063/1.4825386

1527-2400

U. Fantz, P. Franzen, B. Heinemann, D. Wünderlich,

Magnetic confinement fusion research

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.