Control and RF-transmission in the ECW system on TEXTOR-94

• Published in: Fusion engineering and design Vol. 56; pp. 599 - 604
• Main Authors: Dobbe, N.J, Sterk, A.B, Kruisbergen, R.P.J.J.M, Kruyt, O.G, Bestebreurtje, M.E, Prins, P.R, Hoekzema, J.A, van der Grift, A.F, Elzendoorn, B.S.Q
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2001; New York, NY Elsevier Science
• Subjects: Applied sciences; Beam plasma interactions; Client server computer systems; Controled nuclear fusion plants; Cyclotron radiation; Electron cyclotron wave (ECW) system; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Installations for energy generation and conversion: thermal and electrical energy; Light transmission; Multitasking; Natural frequencies; Remote control; TEXTOR-94 tokamak; TEXTOR-94 tokamak; Electron cyclotron wave (ECW) system; Tokamak; Nuclear fusion reactor; Transmission line; Electron cyclotron wave; Control system; Client server architecture; Radiofrequency; TEXTOR tokamak; Nuclear reactor
• ISSN: 0920-3796; 1873-7196
• DOI: 10.1016/S0920-3796(01)00266-6

A real-time and multitasking control system has been developed for the new ECW system on the TEXTOR tokamak. It allows the system to be remotely controlled by client/server application. A quasi-optical transmission line has been installed which uses confocal mirrors and can be used for different frequencies (>100 GHz). It is suitable for transmission of up to two RF beams from different sources to the plasma. The launcher is mounted in a main horizontal port and injects a focused beam with a spot size of 2 cm (at 110 GHz) near the plasma axis. The launcher is steerable independently in the toroidal and poloidal directions.