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- W2002587943 abstract "Characteristics of electron beams emitted from an electron gun employing [100], [110], and [111] axial orientation LaB6 cathodes were investigated over a long period of time. Although the [100] cathode has high initial brightness, emission characteristics are unstable. This instability is caused by vaporization of the (100) plane, which has a low work function, on the cathode top. However, the [110] and [111] cathodes are stable, because the {100} surfaces are formed on the sloping surface of the cathode with time. Therefore, the [110] and [111] cathodes may be more suitable for many applications in spite of a lower initial brightness." @default.
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- W2002587943 date "1982-08-01" @default.
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- W2002587943 title "Emission characteristics of single-crystal LaB6 electron gun" @default.
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- W2002587943 doi "https://doi.org/10.1063/1.331430" @default.
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