Modelling of ICRF heating in DEMO with special emphasis on bulk ion heating
Document typeConference report
Rights accessOpen Access
European Commission's projectEUROfusion - Implementation of activities described in the Roadmap to Fusion during Horizon 2020 through a Joint programme of the members of the EUROfusion consortium (EC-H2020-633053)
Ion cyclotron resonance frequency (ICRF) heating is one of the auxiliary heating schemes presently envisaged for ITER and DEMO. In this paper we analyse the potential of ICRF waves to heat the fuel ions in DEMO. Our analysis is carried out for the DEMO1 Reference Scenario from October 2013 (B = 6.8 T, I = 18.6 MA, R = 9.25 m, a = 2.64 m) optimized for a maximum pulse length of 2.3 hrs using the ICRF modelling codes PION and TORIC. We focus on second harmonic heating of tritium and fundamental minority heating of 3He ions (with a few percent of 3He) in a 50%:50% D-T plasma. The dependence of the ICRF characteristics and the ICRF-accelerated ions on the ICRF and plasma parameters is investigated, giving special attention to the DEMO design point at a core plasma temperature of 30 keV and an electron density of 1.2·1020 m−3.
CitationGallart, Daniel; Mantsinen, Mervi; Kazakov, Yevgen. Modelling of ICRF heating in DEMO with special emphasis on bulk ion heating. A: "Radio frequency power in plasmas: Proceedings of the 21st Topical Conference". AIP, 2015.