Status of the WEST travelling wave array antenna design and results from the high power mock-up

R. Ragona (1) , F. Durodié (1) , A. Messiaen (1) , J. Ongena (1) , M. van Schoor (1) , S. Agzaf (2) , T. Batal (2) , Julien Hillairet (2) , J.-M. Bernard (2) , X. Courtois (2) , J.-M. Delaplanche (2) , R. Dumont (2) , F. Durand (2) , F. Faisse (2) , M. Firdaouss (2) , L. Gargiulo (2) , P. Garibaldi (2) , T. Hoang (2) , G. Lombard (2) , P. Mollard (2) , Z. Chen (3) , Y. Song (3) , H. Xu (3) , Q. Yang (3) , C. Yu (3)

1 ERM KMS - Ecole Royale Militaire / Koninklijke Militaire School
2 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique
3 ASIPP - Institute of Plasma Physics, Chinese Academy of Sciences

This paper presents the current status of the WEST TWA antenna, its mock-up and a possible extrapolation to DEMO. The updated WEST TWA design has a reduced antenna length and features feeding and mechanical support from a single vessel port. A mock-up of the WEST TWA antenna was designed in 2019, manufactured during 2020 and installed in the TITAN test facility at the beginning of 2021. The results of the mock-up at low and high power, its diagnostic system and the prospects are explained. Extensions towards a TWA antenna for WEST and a possible TWA system for the future DEMO tokamak reactor are briefly discussed.

Domains: Plasmas; Electromagnetism; Plasma Physics [physics.plasm-ph]

R. Ragona, F. Durodié, A. Messiaen, J. Ongena, M. van Schoor, et al.. Status of the WEST travelling wave array antenna design and results from the high power mock-up. Nuclear Fusion, 2022, 62 (2), pp.026046. ⟨10.1088/1741-4326/ac4467⟩. ⟨cea-03533314⟩