Περίληψη:
During the ongoing pre-concept phase (2014 - 2020) for a possible future
European DEMOnstration Fusion Power Plant (DEMO) the activities within
EUROfusion WP HCD EC Gyrotron R&D and Advanced Developments are
focusing on options for near-term solutions, and, at the same time, on
long-term even more advanced options. The near-term target for DEMO is
to realize pulsed operation. According to the current baseline it will
probably use an EC system operating at 170 GHz and 204 GHz is being
assessed, whereas the long-term target aims for steady-state operation
and frequencies for current drive up to 240 GHz. Common targets for both
are an RF output power per unit of significantly above 1 MW (target: 2
MW) and a total gyrotron efficiency of significantly higher than 60 %.
Frequency step-tunability and multi-purpose/multi-frequency operation
have to be considered. Those targets shall be achieved by considering
the coaxial-cavity gyrotron technology and advanced technologies for key
components (e.g. CVD diamond-disk Brewster angle window). Advanced
simulation and test tools are complementing the research and
developments. Gyrotron development is additionally supported by a
significant investment into a new multi-megawatt long-pulse gyrotron
test stand which is under final installation at KIT currently.
Συγγραφείς:
Jelonnek, John
Aiello, Gaetano
Alberti, Stefano
Avramidis,
Konstantinos
Bruschi, Alex
Chelis, Ioannis
Franke, Thomas
and Gantenbein, Gerd
Garavaglia, Saul
Granucci, Gustavo and
Grossetti, Giovanni
Illy, Stefan
Ioannidis, Zisis
Jin,
Jianbo
Kalaria, Parth
Latsas, George
Pagonakis, Ioannis and
Peponis, Dimitrios
Rzesnicki, Tomasz
Ruess, Sebastian
Ruess,
Tobias
Scherer, Theo
Schmid, Martin
Strauss, Dirk
Wu,
Chuanren
Thumm, Manfred
Tigelis, Ioannis
Minh Quang Tran and
Wilde, Fabian
Zein, Andy
