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

fYear

2008

fDate

15-19 June 2008

Firstpage

1

Lastpage

1

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Conference_Location

Karlsruhe

ISSN

0730-9244

Print_ISBN

978-1-4244-1929-6

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2008.4590755

Filename

4590755