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It was demonstrated that all thermo-emission materials possess considerable emission heterogeneity; therefore the current take-off shall be described accordingly. An original current take-off equation was suggested with account of emission heterogeneity. The equation structurally represents a linear first kind Fredholm integral equation. It was demonstrated that the inverse problem — emission heterogeneity...
It was demonstrated numerical method optimizing the design of butt-end cathode-heating units with multy — layer the contact filament by methods of the theory thin layer.
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