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- W2024763554 abstract "An ion gun for producing beams of Li+ ions has been constructed and its basic characteristics have been investigated. The operation of the ion source is based on the effect of the thermoionic emission of Li+ ions from beta-eucryptite (Li2O·Al2O3·2SiO2) which spontaneously emits an intense flux of Li+ ions when heated above T > 1000°C. The following results of the experimental investigations were obtained: 1) Maximum ion current of the gun is about 10μA, at beam energies of 500–2000 eV. 2) Beyond the exit of the gun a convergent axially-symmetrical beam is obtained. The minimum beam diameter is about 1 mm and occurs just at the exit of the gun. 3) Mass-spectrometer studies showed that the main impurities in the beam are ions of Na and K and they decrease with time and temperature. 4) The energy spread of the beam is very small: ≈0.15 eV. 5) The lifetime of the charge of the emissive material is about 50 h, and this is also the lifetime of the tungsten filament. The constructed ion gun can be used for production of ion beams of all alkali ions, depending on the aluminosilicate used as emissive material." @default.
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- W2024763554 date "1973-08-01" @default.
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- W2024763554 title "Experimental investigations of Li+ ion gun characteristics" @default.
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- W2024763554 doi "https://doi.org/10.1016/0029-554x(73)90102-x" @default.
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