Commissioning of inline ECE system within waveguide based ECRH transmission systems on ASDEX upgrade

W.A. Bongers; W. Kasparek; N. Doelman; R. van den Braber; H. van den Brand; F. Meo; M.R. de Baar; F.J. Amerongen; A.J.H. Donné; B.S.Q. Elzendoorn; V. Erckmann; A.P.H. Goede; L. Giannone; G. Grünwald; F. Hollman; G. Kaas; B. Krijger; G. Michel; L. Lubyako; F. Monaco; F. Noke; M. Petelin; B. Plaum; F. Purps; J.G.W ten Pierik; C. Schüller; J.W. Slob; J.K. Stober; H. Schütz; D. Wagner; E. Westerhof; D.M.S. Ronden

doi:10.1051/epjconf/20123203006

EPJ

Commissioning of inline ECE system within waveguide based ECRH transmission systems on ASDEX upgrade

W.A. Bongers¹, W. Kasparek², N. Doelman³, R. van den Braber³, H. van den Brand¹^,4, F. Meo⁵, M.R. de Baar¹^,4, F.J. Amerongen¹, A.J.H. Donné¹^,4, B.S.Q. Elzendoorn¹, V. Erckmann⁶, A.P.H. Goede¹, L. Giannone², G. Grünwald⁶, F. Hollman⁶, G. Kaas¹, B. Krijger¹, G. Michel⁶, L. Lubyako⁷, F. Monaco⁶, F. Noke⁶, M. Petelin⁷, B. Plaum², F. Purps⁶, J.G.W ten Pierik¹, C. Schüller¹, J.W. Slob¹, J.K. Stober⁶, H. Schütz⁶, D. Wagner⁶, E. Westerhof¹, D.M.S. Ronden¹, teams at the contributing institutes¹^,2^,3^,5^,6^,7 and the ASDEX Upgrade Team⁶

¹ Dutch Institute For Fundamental Energy Research, NL-3439 BE Nieuwegein, The Netherlands
² Institut für Plasmaforschung, Universität Stuttgart, D-70569 Stuttgart, Germany
³ Department of OptoMechatronics, TNO Technical Sciences, NL-2600 AD, Delft, The Netherlands
⁴ Eindhoven University of Technology, NL-5600 MB, Eindhoven, The Netherlands
⁵ Risø DTU National Laboratory for Sustainable Energy, DK-4000 Roskilde, Denmark
⁶ Max-Planck-Institut für Plasmaphysik, EURATOM Association D-17491 Greifswald, and D-85748 Garching, Germany
⁷ Inst. of Applied Physics, Russian Academy of Science, 603950 Nizhny Novgorod, Russia

Abstract

A CW capable inline electron cyclotron emission (ECE) separation system for feedback control, featuring oversized corrugated waveguides, is commissioned on ASDEX upgrade (AUG). The system is based on a combination of a polarization independent, non-resonant, Mach-Zehnder diplexer equipped with dielectric plate beam splitters [2, 3] employed as corrugated oversized waveguide filter, and a resonant Fast Directional Switch, FADIS [4, 5, 6, 7] as ECE/ECCD separation system. This paper presents an overview of the system, the low power characterisation tests and first high power commissioning on AUG.

15th European Conference on Atoms Molecules and Photons (ECAMP)
June 30 to July 4, 2025
Innsbruck, Austria

EPJ

Commissioning of inline ECE system within waveguide based ECRH transmission systems on ASDEX upgrade

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