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DOI: 10.1016/S0920-3796(03)00189-3
Zitationen: 2

A double disk window for the JET EP ECRH system

Yang, X.; Piosczyk, B.; Heidinger, R.; Thumm, Manfred

The work of double disk window design for JET EP ECRH project has been done at FZK Karlsruhe. The window unit has to provide a reliable barrier between the torus and the outer system for tritium containment. An additional requirement is that the microwave transmission of the double disk arrangement has to be suitable for two frequencies: 113.3 GHz and 170.0 GHz. Based on a new development of the brazing technique the design of the window unit has been modified. Detailed calculations of the microwave transmission characteristic of a double disk window have been performed. In particular the influence of mechanical tolerances on the transmission characteristic have been investigated in order to be able to specify the mechanical dimensions of the CVD-disks and the window unit. The calculations have been performed for several distances dgap between the disks. The first result was that an uncertainty of ± 10 micron in the thickness of each disk of the pair used in a window unit cannot be tolerated since it may cause an unacceptable reduction of the transmission characteristic (power reflection > 1%). In order to obtain a sufficient tr ... mehr

Zugehörige Institution(en) am KIT Institut für Materialforschung (IMF)
Institut für Höchstfrequenztechnik und Elektronik (IHE)
Institut für Hochleistungsimpuls- und Mikrowellentechnik (IHM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2003
Sprache Englisch
Identifikator ISSN: 0920-3796, 1873-7196
KITopen ID: 1000001323
HGF-Programm 31.04.04; LK 01
Erschienen in Fusion engineering and design
Band 66-68
Seiten 633-637
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