The ICRH system for the stellarator Wendelstein 7-X status and prospects.

The ICRH antenna for the stellarator Wendelstein 7-X (W7-X) foreseen for heating, fast particle production, plasma start-up and wall conditioning in W7-X, is designed to handle powers up to 1.5MW in pulses lasting a maximum of 10 seconds for the frequency range 25-38 MHz. Construction and testing of the ICRH antenna took place at the Institute for Energy and Climate Research/Plasmaphysics (IEK-4) and the Central Institute for Engineering, Electronics and Analytics (ZEA-1) of the Research Centre Jülich, in an intense collaboration with the Laboratory for Plasma Physics of the Royal Military Academy in Brussels (LPP-ERM/KMS). Following the successful construction and testing phase, the ICRH antenna has been installed in W7-X and is currently in its commissioning phase. The purpose of this paper is to provide an overview of the design, construction, and installation process of the antenna, as well as the plans for experiments with the ICRH system in the upcoming months. [ABSTRACT FROM AUTHOR]