Secondary electron emission and charging characteristics of ionirradiated sapphireстатья
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Дата последнего поиска статьи во внешних источниках: 6 апреля 2016 г.
Аннотация:Kinetic characteristics of sapphire (a-Al2O3) single crystal irradiated by keV electrons are studied. We compare untreated sapphire with surfaces bombarded with Arþ ions and/or coated with a thin Al film. The electron emission yield and the charging characteristics for the untreated sapphire surface and for that bombarded by Arþ ions differ significantly. This difference is less when the sapphire sample is coated with a thin film of Al. We propose an explanation for the observed effects.