TY - CONF
TI - Towards Advanced Fusion Gyrotrons: 2018 Update on Activities within
EUROfusion
AU - Jelonnek, John
AU - Aiello, Gaetano
AU - Alberti, Stefano
AU - Avramidis,
AU - Konstantinos
AU - Bruschi, Alex
AU - Chelis, Ioannis
AU - Franke, Thomas
AU - and Gantenbein, Gerd
AU - Garavaglia, Saul
AU - Granucci, Gustavo and
AU - Grossetti, Giovanni
AU - Illy, Stefan
AU - Ioannidis, Zisis
AU - Jin,
AU - Jianbo
AU - Kalaria, Parth
AU - Latsas, George
AU - Pagonakis, Ioannis and
AU - Peponis, Dimitrios
AU - Rzesnicki, Tomasz
AU - Ruess, Sebastian
AU - Ruess,
AU - Tobias
AU - Scherer, Theo
AU - Schmid, Martin
AU - Strauss, Dirk
AU - Wu,
AU - Chuanren
AU - Thumm, Manfred
AU - Tigelis, Ioannis
AU - Minh Quang Tran and
AU - Wilde, Fabian
AU - Zein, Andy
PY - 2019
SP - null
PB - E D P SCIENCES
T2 - 20TH JOINT WORKSHOP ON ELECTRON CYCLOTRON EMISSION AND ELECTRON
CYCLOTRON RESONANCE HEATING (EC20)
TODO - 10.1051/epjconf/201920304007
TODO - null
TODO - 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.
ER -