IMITATION OF INFLUENCE OF PLASMA AND NEUTRON FLUXES ON GRAPHITE MADE PLASMA-FACING COMPONENTS OF PLASMA DIAGNOSTICS IN MM AND SUB-MM WAVELENGTH RANGE

Carbon-graphite materials are proposed for manufacturing inner element s of mm and submm diagnostics in a fusion reactor (i.e., reflectors an d antennae of different kinds). The investigations of influence of pul sed power plasma streams with a power density greater than or equal to 1 kJ/cm(2) on radiotechnical characteristics of these elements at fre quencies 37.5, 75, 105, 694, 890 and 2520 GHz and neutron irradiation with a fluence similar to 10(22) n/cm(2) on plane reflectors at a freq uency 890 GHz were carried out. Results of our tests point out the pro spect to use these materials for making the mentioned elements, especi ally in the case if similar materials will be used as the first wall p rotection.