Vs. Voitsenya et al., ON THE POSSIBILITY OF USING CARBON-GRAPHITE MATERIALS FOR THE INNER ELEMENTS OF MILLIMETER AND SUBMILLIMETER DIAGNOSTICS OF A FUSION PLASMA, Fusion engineering and design, 34-5, 1997, pp. 491-494
The paper presents data on radiotechnical characteristics of antennae
and reflectors for mm and sub-mm wavelength ranges, made of carbon-gra
phite materials (CGM). It is shown that the reflectivity value of plan
e reflectors made of different kinds of CGM depends mostly on the surf
ace roughness being close to that of metallic reflectors, and does not
change significantly under neutron irradiation. Characteristics of CG
M-made antennae are not much different from those for antennae made of
metal. Pyramidal antennae made of CGM maintains its properties under
imitated plasma disruption much better than a similar metallic one wou
ld. (C) 1997 Elsevier Science S.A.