Author/Authors :
Razdobarin، نويسنده , , A.G. and Mukhin، نويسنده , , E.E. and Semenov، نويسنده , , V.V. and Tolstyakov، نويسنده , , S.Yu. and Kochergin، نويسنده , , M.M. and Kurskiev، نويسنده , , G.S. and Podushnikova، نويسنده , , K.A. and Kirilenko، نويسنده , , D.A. and Sitnikova، نويسنده , , A.A. and Konovalov، نويسنده , , V.G. and Solodovchenko، نويسنده , , S.I. and Nekhaieva، نويسنده , , O.M. and Skorik، نويسنده , , O.A، نويسنده ,
Abstract :
Fast degradation of in-vessel optics is one of the most serious problems for all optical diagnostics in ITER. To provide the resistance to mechanical and thermal stresses along with a high stability of optical characteristics under deposition-dominated conditions we suggest using high-reflective metallic (Ag or Al) film mirrors coated on silicon substrate and protected with thin oxide film in the divertor Thomson Scattering (TS) diagnostics. The mirrors coated with Al2O3 and ZrO2 films were tested under irradiation by deuterium ions. The experimental results on the oxide films sputtering are discussed in the context of their applicability for the first mirror protection in ITER.
Keywords :
Al2O3 , First mirror , ITER , TEM , High-reflective mirrors , sputtering yield , ZrO2
