The field ionimage of tungsten with resolution of atomic level has been obtained and the surface structure of tungsten has been analysed.
取得具有原子级分辨的场离子像，并对钨场离子像反映的晶体表面结构进行了分析。
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The ion barrier film at the input of the microchannel plate (MCP) plays an important role in improving the lifetime of the third generation image tube.
Seen here on June 13th from southern New Mexico, this Comet McNaught's long ion tail sweeps across the telescopic field of view (a negative image is inset).