Impact of the plasma operation on the technical requirements in EU-DEMO

• DOI: 10.1016/j.fusengdes.2022.113123
• Publication Date: 2022-04-05T15:24:17Z
• Authors: M. Siccinio; W. Biel; E. Fable; T. Franke; F. Janky; P.T. Lang; M. Mattei; F. Maviglia; F. Palermo; O. Sauter; M.Q. Tran; S. Van Mulders; H. Zohm
• Keywords: eu-demo; h&cd; Current ramps; EU-DEMO; H&CD; Pellet; Plasma control; Plasma control; 01 natural sciences; 7. Clean energy; ddc:; EU-DEMO; Pellet; pellet; plasma control; 0103 physical sciences; current ramps; Current ramps; H&CD; info:eu-repo/classification/ddc/530

The plasma design point during stationary phase operation of EU-DEMO has been described extensively in the past, and assumptions employed for its definition have supported by various investigations. However, a snapshot is far not sufficient to ensure actual operability scenario. On contrary, both normal off-normal transients strong impact on machine design, providing most challenging requirements actuators. This be accounted from early phases on. In this paper, main originating operation, studied Pre-Concept Design Phase, are briefly reviewed. These encompass so-called planned transients, e.g. current ramps, access termination burn or fueling with pellets, but also mitigation events which may lead disruption, divertor reattachment an uncontrolled increase radiation after sudden W influx wall.