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- W2000837557 abstract "A surface plasma source for long-time dc operation with efficient production of negative ions and high emission current density has been designed and tested. Several modifications of the discharge system, beam extraction, cesium supply, and source design have been tested for long-time operation. The emission current density of H− ions has been increased to j=1 A/cm2 in the dc mode of operation with a discharge voltage, Ud=80 V; a discharge current, Id=0.9 A and a discharge power, P=70 W. Corresponding efficiency of the current density production S=j/P=15 A/cm2 kW is much higher than in modern positive ion sources. Source features determining an operational lifetime will be discussed." @default.
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- W2000837557 date "2002-02-01" @default.
- W2000837557 modified "2023-09-26" @default.
- W2000837557 title "Direct current surface plasma source with high emission current density" @default.
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- W2000837557 doi "https://doi.org/10.1063/1.1431410" @default.
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