Title :
Status of development of the 2MW, 170GHz coaxial-cavity gyrotron for ITER
Author :
Alberti, S. ; Albajar, F. ; Avramides, K.A. ; Benin, P. ; Bonicelli, T. ; Cirant, S. ; Droz, E. ; Dumbrajs, O. ; Fasel, D. ; Goodman, T. ; Hogge, J.-P. ; Illy, S. ; Jawla, S. ; Jin, J. ; Kern, S. ; Lievin, C. ; Marlétaz, B. ; Marmillod, Ph ; Pagonakis, I.
Author_Institution :
Centre de Rech. en Phys. des Plasmas, Ecole Polytech. Fed. de Lausanne, Lausanne
Abstract :
A collaborative effort between European research associations and Thales Electron Devices (TED) has been launched by the European Fusion Development Agreement (EFDA) in 2003, aiming at the development of an industrial 170GHz/2MW/CW coaxial cavity gyrotron. The first prototype, although designed to be CW compatible is expected to reach 2MW/ls and is presently being tested in Lausanne on a specially dedicated test facility. The test facility has been designed to be flexible enough, allowing the possible commissioning of tubes with different characteristics, as well the tests of the launcher antenna at full performances. The test facility has been fully tested during the first test phases on the gyrotron which include: high voltage stand-off, coaxial insert alignment and cathode conditioning without depressed collector power supply at an electron beam power of 85kV/78A/lms. The status of the short pulse (< 100ms) experimental results will be reported.
Keywords :
gyrotrons; microwave antennas; ITER; cathode conditioning; coaxial insert alignment; coaxial-cavity gyrotron; electron beam power; frequency 170 GHz; launcher antenna; power 2 MW; voltage stand-off; Cathodes; Coaxial components; Collaboration; Electron devices; Gyrotrons; Performance evaluation; Prototypes; Test facilities; Testing; Voltage;
Conference_Titel :
Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4244-1929-6
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2008.4590755
