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A new kind of cathode, LaC2-Mo cathode was prepared through spark plasma sintering method by using the mixed powder of LaC2 which was prepared by vacuum melting method and molybdenum. It was found that the emission properties of LaC2-Mo cathode increases with the LaC2 content increasing. The emission current density of LaC2-Mo cathode which contains 3.5wt.% LaC2 could reach 0.90A/cm2 at 1400b whereas...
Emission properties of nanosized scandia doped dispenser (SDD) cathodes tested at pulse mode with different pulse widths and duty cycles as well as at DC mode are reported and discussed in this paper.
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