CNR ExploRA

Contributo in atti di convegno, 2023, ENG, 10.1063/5.0162609

Progress and verification of DTT ICRF antenna simulation using COMSOL

Torrisi G.; Mascali D.; Mauro G.S.; Pidatella A.; Ceccuzzi S.; Baiocchi B.; Cardinali A.; Milanesio D.; Mirizzi F.; Ponti C.; Ravera G.L.; Tuccillo A.; Vecchi G.

INFN-LNS, Catania, Italy; DTT S.C. a r.l., Frascati, Italy; ENEA, Frascati, Italy; CNR ISTP, Istituto per la Scienza e Tecnologia dei Plasmi, Milano, Italy; Politecnico di Torino, Italy; CREATE, Napoli, Italy; Università degli Studi Roma Tre, Roma, Italy.

In this paper we present the extension of a full-wave FEM model (COMSOL®+MATLAB®) - initially developed to compute the electromagnetic field in presence of the anisotropic inhomogeneous plasma of the Electron Cyclotron Resonance Ion Sources (ECRISs) [1] - to the Ion Cyclotron Range of Frequency (ICRF). The model - based on the full non-uniform dielectric tensor in "cold plasma" approximation - has been employed to study antenna geometries of increasing complexity. Various antenna types have been analyzed, starting from single flat strap up to the two straps of an antenna option considered for the Divertor Tokamak Test facility (DTT) [2]. The results have been compared, cross-checked and validated with a simpler COMSOL-based tool [3] and with the TOPICA code [4].

24th Topical Conference on Radio-frequency Power in Plasmas, pp. 060005-1–06005-5, Annapolis, Maryland, USA, 26-28 September 2022