Simulation of radiation effects on reflectors using heavy ion beams

• Published in: Journal of nuclear materials Vol. 212-1; no. pt B; pp. 1640 - 1644
• Main Authors: Vojtsenya, V S, Borisenko, YuN, Bryk, V V, Gann, V V, Grigorenko, B V, Gritsyna, V T, Khorenko, V K, Konovalov, V G, Koval, I F, Lubinetsky, I V, Orlinskij, D V, Pyatnitsky, MYu, Shapoval, AN, Voevodin, V N, Volobuev, A V
• Format: Journal Article
• Language: English
• Published: 01.01.1994
• Subjects: Dielectric materials; Dosimetry; Fusion reactors; Ion beams; Materials testing; Neutron emission; Optical variables measurement; Radiation effects
• ISSN: 0022-3115

The results on modelling the behaviour of metal mirrors under neutron irradiation in a fusion reactor are presented. Mirror-like specimens were irradiated with beams of ions: Cr super(+) (stainless steel), Cu super(+) (copper) and Ne super(+) and/or He super(+) (beryllium). The energy of ions was in the range of a few keV (He super(+)) to 3 MeV (Cr super(+) and Cu super(+)). The reflectivity as a function of irradiation dose was measured in the interval of spectrum 0.2-1.0 mu m. There was no strong degradation of the mirror reflectivity up to doses approx. 10 dpa in a near surface layer. In contrast, all used methods showed definite change of surface characteristics.