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- W2031075125 abstract "Emission currents have been measured at elevated temperatures for a periodic copper knife-edge cathode. To model the emission process of the cathode, we have combined thermionic and field emission processes. Electron tunneling is calculated using a transfer matrix method. Using this model, we accurately reproduced the experimental deviation and minimum in the ln(J∕Eg2) vs 1∕Eg plot, where Eg is the gap electric field and J is the emitted current density. This phenomenon has been widely observed but no comprehensive explanation has been put forth. Unambiguous and realistic estimates of the cathode effective field enhancement factor beta averaged (βeff=Esurface∕Egap) and effective work function Φ are obtained from experimental measurements using this model." @default.
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- W2031075125 date "2007-09-01" @default.
- W2031075125 modified "2023-10-16" @default.
- W2031075125 title "Modeling of cold emission cathode by inclusion of combined field and thermionic emission processes" @default.
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- W2031075125 doi "https://doi.org/10.1063/1.2778287" @default.
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