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- W1969430278 abstract "It has proved that the superior emission capability of a new type impregnated dispenser cathode through impregnates the BaO/SrO/Sc <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> O <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> active substances and covers a mixture W+BaO/SrO/Sc <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sub> O <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> coating by the pulse laser deposition. However, the thermionic emission of this impregnated dispenser cathode at low temperature is not clear. Our results illustrate that the Current-voltage characteristics of this new impregnated dispenser cathode preserve unsaturated behavior. The maximum of the current density is 2.1 Acm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>-2</sup> occurring at 650°C for the applied voltage from 0 to 3000 V. These results provide hope to further investigate the emission mechanism and make this cathode also applicable for vacuum electron tubes." @default.
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- W1969430278 date "2013-05-01" @default.
- W1969430278 modified "2023-10-16" @default.
- W1969430278 title "Thermionic emission of impregnated dispenser cathodes at low temperature" @default.
- W1969430278 cites W1991521991 @default.
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- W1969430278 doi "https://doi.org/10.1109/ivec.2013.6571066" @default.
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