| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9572312 | Applied Surface Science | 2005 | 4 Pages |
Abstract
This paper describes the surface analyses of “in situ” prepared Mo cathodes with a La coating. It was found that the electron emission depends strongly on the atomic La/O ratio at the surface: the higher this ratio, the better the emission. The emission current density increases sharply when the La/O ratio starts to deviate from the stoichiometric ratio of La2O3. A model, which describes the emission of La coated Mo cathodes qualitatively, is presented.
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Authors
Shiming Hao, Zuoren Nie, Jiancan Yang, Xiaoli Xi,