WEST actively cooled load resilient ion Cyclotron Resonance Heating system results

Julien Hillairet (1) , P Mollard (1) , L Colas (1) , J.-M Bernard (1) , J.-M Delaplanche (1) , F Durand (1) , N Faure (1) , P Garibaldi (1) , G Lombard (1) , C Bourdelle (1) , C Desgranges (1) , E Delmas (1) , R Dumont (1) , A Ekedahl (1) , F Ferlay (1) , M Goniche (1) , C Guillemaut (1) , G T Hoang (1) , P Maget (1) , R Volpe (1) , West Team (1) , W Helou (2) , G Urbanczyk (3) , Y Song (4) , Q Yang (4) , Z Chen (4) , Y Wang (4) , H Xu (4) , S Yuan (4) , Y Zhao (4) , F Durodie (5) , E Lerche (5) , R Ragona (5) , N Bertelli (6) , M Ono (6) , S Shiraiwa (6) , V Bobkov (7) , C Klepper (8) , C Lau (8) , E Martin (8) , B Lu (9) , R Maggiora (10) , D Milanesio (10) , K Vulliez (11) , G Wallace (12)

1 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique
2 ITER - ITER organization
3 College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen
4 ASIPP - Institute of Plasma Physics, Chinese Academy of Sciences
5 ERM KMS - Ecole Royale Militaire / Koninklijke Militaire School
6 PPPL - Princeton Plasma Physics Laboratory
7 IPP - Max-Planck-Institut für Plasmaphysik [Garching]
8 ORNL - Oak Ridge National Laboratory [Oak Ridge]
9 SWIP - Southwestern Institute of Physics
10 Polito - Politecnico di Torino = Polytechnic of Turin
11 LITEN - Laboratoire d'Innovation pour les Technologies des Energies Nouvelles et les nanomatériaux
12 PSFC - MIT Plasma Science and Fusion Center

Three identical new WEST Ion Cyclotron Resonance Heating (ICRH) antennas have been designed, assembled then commissioned on plasma from 2013 to 2019. The WEST ICRH system is both load-resilient and compatible with long-pulse operations. The three antennas have been successfully operated together on plasma in 2019 and 2020. The load resilience capability has been demonstrated and the antenna feedback controls for phase and matching have been developed. The breakdown detection systems have been validated and successfully protected the antennas. The use of ICRH in combination with Lower Hybrid has triggered the first high confinement mode transitions identified on WEST.

Mots clés: ICRH; ICRF; WEST

Domaines: Plasmas; Electromagnétisme; Physique des plasmas [physics.plasm-ph]

Julien Hillairet, P Mollard, L Colas, J.-M Bernard, J.-M Delaplanche, et al.. WEST actively cooled load resilient ion Cyclotron Resonance Heating system results. Nuclear Fusion, 2021, ⟨10.1088/1741-4326/ac1759⟩. ⟨cea-03295388⟩