Progress in development and qualification of beryllium for ITER blanket first wall application in Russian Federation

Abstract Progress of R&D activities on the development and improvement of manufacturing technology of the billets and tiles made of TGP-56FW beryllium is traced and also some actions aimed on the preparation of mass production is reported. Additionally, the results of comparative study are presented on influence of transient plasma heat loads with the energy density of 0.3–1.0 MJ/m 2 at 250–500 °C (performed in QSPA-Be plasma gun facility), on the erosion and surface damage of beryllium tiles made of TGP-56FW grade (RF) and S-65C grade (USA).