LIMITS OF OPERATION OF CONVENTIONAL RF WINDOWS FOR ELECTRON CYCLOTRON WAVES LAUNCHERS IN A REACTOR
The main thermomechanical problems of conventional ceramic RF windows for electron cyclotron wave launchers at 140GHz, in a reactor, and a design approach based on a simplified analytical procedure and more detailed finite element analyses are presented. The RF power which can be transmitted per disk window depends among others on the assumed power flux distribution, the cooling conditions, the geometry and the disk support conditions. A limit of about 250 KW has been evaluated on the basis of material integrity considerations in terms of maximum bending tensile, compressive and buckling stresses. These preliminary estimates do not account for irradiation effects nor for probabilistic fracture mechanics behaviour of the ceramic disks. Improvements (use of high strength materials and advanced window concepts) are suggested.
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 821-827 1895 P., 1986, VOL. 1 AND VOL. 2, ISBN 0 08 034935 8 WRITE TO PERGAMON PRESS, HEADINGTON HILL HALL, OXFORD, OX3 0BW (UK), PRICE: UKL 220 (FOR BOTH VOLS.)
Record Number: 1989126049501 / Last updated on: 1989-01-01
Available languages: en