NEW TEXTOR LINER AS A SUPPORTING STRUCTURE FOR THE TOROIDAL PUMP LIMITER ALT-II
The Advanced Limiter Test-II (ALT-II) is a toroidal pump limiter experiment designed to be installed into the TEXTOR-Tokamak of the Institute of Plasmaphysics, KFA Julich. ALT-II will have a moderate heat load and the particle removal rates are aiming at a design objective of 5%. The belt limiter consists of 8 blades of Inconel covered by graphite armor tiles and is located in TEXTOR at a poloidal angle of 45 degrees below the plasma midplane and on the outboard side. This location offers the least interference with diagnostic ports at top and bottom of the vacuum vessel, the neutral beam injector ports located at the vessel midplane and the new ICRH-antennae positioned in the upper half of the liner. The new liner serves as a supporting structure for the eight limiter blades. Each blade is resting at its ends on two drive mechanisms located in flanges which are welded to the liner and permit a radial adjustment of the blades by 50 mm under vacuum. The pumping ducts for the limiter blades are penetrating the liner wall at 8 positions. Numerous ports are located at the whole circumference for the access of diagnostics, ICRH antennae and neutral beam injectors. The liner can be heated up to temperature of 500 degrees C by a direct current of about 10 kA.
Bibliographic Reference: 14TH SOFT CONFERENCE, AVIGNON (FRANCE), SEPT. 8-12, 1986 VOL. 1, PP. 601-606 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: 1989126045401 / Last updated on: 1989-01-01
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