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

• Main Authors: Donné A.J.H., Amerongen F.J., de Baar M.R., Meo F., van den Brand H., van den Braber R., Doelman N., Kasparek W., Bongers W.A., Elzendoorn B.S.Q., Erckmann V., Goede A.P.H., Giannone L., Grünwald G., Hollman F., Kaas G., Krijger B., Michel G., Lubyako L., Monaco F., Noke F., Petelin M., Plaum B., Purps F., ten Pierik J.G.W, Schüller C., Slob J.W., Stober J.K., Schütz H., Wagner D., Westerhof E., Ronden D.M.S.
• Format: Article
• Language: English
• Published: EDP Sciences 2012-09-01
• Series: EPJ Web of Conferences
• Online Access: http://dx.doi.org/10.1051/epjconf/20123203006
• ISSN: 2100-014X

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.