Some peculiarities in the behavior of Be surfaces under bombardment by ions from a deuterium plasma

Modification of optical properties of Be mirrors under bombardment by deuterium ions

“…1 and 2 as well as those published earlier [2,3] agreed with the concept that the drop of Be mirror reflectance under short exposure times to high energy deuterium ions is a result of partial chemical transformation occurring inside the BeO film. The results supporting this concept are:…”

“…As for the low ion fluence effects, it has been shown earlier [3] that the result of ion bombardment on modification of optical properties of Be mirrors increases with increasing ion energy. In [3] to obtain the ion energy dependence of reflectance drop five Be mirror samples with almost similar initial optical properties were bombarded for similar exposure time (2 min) by ions of different energies (50, 100, 200, 650, and 1350 Fig.…”

“…In [3] to obtain the ion energy dependence of reflectance drop five Be mirror samples with almost similar initial optical properties were bombarded for similar exposure time (2 min) by ions of different energies (50, 100, 200, 650, and 1350 Fig. 1.…”

“…Some results of experiments on Be mirrors with ECH discharge plasmas were discussed in papers [2,3] for one kind of beryllium. In contrast, the results of experiments in a reflex discharge were not analyzed yet.…”

“…Modelling experiments were begun in Kharkov three years ago and some results were previously presented [2,3]. The most important result was observation of the sharp drop of reflectance in the wavelength 220-650 nm after beryllium mirrors were subjected to bombardment by keV ions of deuterium plasma.…”