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Status of RADI - a RF source size-scaling experiment towards the ITER source
P. Franzen, H. Falter, B. Heinemann, Ch. Martens, U. Fantz, M. Berger,
S. Christ, A. Encheva, M. Fröschle, D. Holtum, W. Kraus, P. McNeely,
R. Riedl, R. Süss, S. Obermayer, E. Speth, A. Tanga, D. Wünderlich
Max-Planck-Institut für Plasmaphysik, EURATOM Association, Postfach
1533, D-85740 Garching, Germany
Abstract: IPP Garching is currently developing a RF source for the ITER neutral beam system.
The principle suitability concerning current density (> 20 mA/cm2 D−), pressure (0.3 Pa) and
electron content (je/jD− ~ 1) has been demonstrated with the test facility BATMAN, but with only small extraction area (~ 70 cm2) and limited pulse length (< 6 s). The further
development concentrates now on long pulse operation (at the test facility MANITU, operational
this spring) and source size extension.
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Synopsis (pdf)