Design improvements, assembly and testing of the ICRH antenna for W7-X

• DOI: 10.1016/j.fusengdes.2020.112205
• Publication Date: 2021-04-09T04:56:25Z
• Authors: D.A. Castaño Bard...; B. Schweer; J. Ongena; W. Behr; K. Crombé; G. Czymek; X. Han; D. Hartmann; K.P. Hollfeld; J.P. Kallmeyer; A. Krämer-Flecken; Ch. Linsmeier; O. Neubauer; D. Nicolai; G. Offermanns; G. Satheeswaran; I. Stepanov; M. Van Schoor; M. Vervier; R. Wolf
• Keywords: Physics and Astronomy; Antenna; 3-ion; Matching; RF; info:eu-repo/classification/ddc/530; ICRH; 7. Clean energy; SYSTEM; Confinement

The newly developed ICRH antenna system for the stellarator W7-X will be available Operational Phase 2.1. design and application of various components in was validated using a prototype box with straps. Electromagnetic characteristics were measured optimized while reconsidering thermal mechanical aspects. As result, several improved introduced to final design. layout new matching allows operation at 25 MHz 37.5 without use additional line stretchers. refurbished two radio frequency (RF) generators formerly used TEXTOR comply EU safety standards.