https://doi.org/10.1051/epjconf/201715703054
Modelling RF-plasma interaction in ECR ion sources
1 Laboratori Nazionali Del Sud, INFN, via S. Sofia 62, Catania, 95123, Italy
2 Laboratori Nazionali di Legnaro, INFN, Viale dell’Università 2, 35020 Legnaro (Padova), Italy
3 Università degli studi di Catania, Viale Andrea Doria 6, Catania, 95125, Italy
4 Dipartimento di Fisica e Astronomia, Università of Catania,Via S. Sofia, 64 I-95123 Catania
* Corresponding author: giuseppe.torrisi@lns.infn.it
Published online: 23 October 2017
This paper describes three-dimensional self-consistent numerical simulations of wave propagation in magnetoplasmas of Electron cyclotron resonance ion sources (ECRIS). Numerical results can give useful information on the distribution of the absorbed RF power and/or efficiency of RF heating, especially in the case of alternative schemes such as mode-conversion based heating scenarios. Ray-tracing approximation is allowed only for small wavelength compared to the system scale lengths: as a consequence, full-wave solutions of Maxwell-Vlasov equation must be taken into account in compact and strongly inhomogeneous ECRIS plasmas. This contribution presents a multi-scale temporal domains approach for simultaneously including RF dynamics and plasma kinetics in a “cold-plasma”, and some perspectives for “hot-plasma” implementation. The presented results rely with the attempt to establish a modal-conversion scenario of OXB-type in double frequency heating inside an ECRIS testbench.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
