Abstract
The paper presents data on the behavior of TGP-56 beryllium after exposure to an electron beam and hydrogen plasma. The experiments were conducted with different numbers of pulses at surface temperatures of ∼ 360 °C, ∼800 °C, and ∼ 1200 °C. The temperature mode is determined by the operating conditions of the first wall coating at a standard thermal load. To assess the changes in beryllium after testing, microanalysis, X-ray diffraction analysis, and microhardness measurements were performed. It has been found that the beryllium coating is resistant to normal International Thermonuclear Experimental Reactor (ITER) operation modes, but at temperatures above 800 °C, critical damage to the material is possible over the time of operation of the thermonuclear facility.
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