First tests with the new ECRH System for ASDEX Upgrade

 

D. Wagner, G. Grünwald, F. Leuterer, A. Manini, F. Monaco, M. Münich, F. Ryter, H. Schütz,

H. Zohm, T. Franke

Max-Planck-Institut für Plasmaphysik, D-85748 Garching, Germany

2) R. Heidinger, 1) K. Koppenburg, 1)M. Thumm

Forschungszentrum Karlsruhe, 1) Institut für Hochleistungsimpuls- und Mikrowellentechnik, 2) Institut für Materialforschung, D-76021 Karlsruhe, Germany

W. Kasparek, G. Gantenbein

Institut  für Plasmaforschung, Universität Stuttgart, D-70569 Stuttgart, Germany

G.G. Denisov,  A. Litvak, V. Zapevalov

Institute of Applied Physics, RAS, 603600 Nizhny Novgorod, Russia

 

 

 

Abstract

 

The first two-frequency gyrotron of the new ASDEX Upgrade has been installed and is currently put into operation. In its final stage the system will have 4 step-tunable gyrotrons working in the frequency range 105-140 GHz with a total power of 4 MW and a pulse duration of 10s. Particular features of the system are broadband transmission components and a tunable double disk vacuum window at the torus. It also contains fast moveable mirrors for a feedback controlled localized power deposition.