High Quantum Efficiency, Low Emittance Electron Beam From Multifilamentary Cathodes.

Fernando Ardana,Frederic Le Pimpec,Alexander Anghel,Christoph P. Hauri

2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)（2012）

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摘要

We present a new type of metallic cathode, reaching quantum efficiency of 10(3). This value together with the estimated emittance, gives a brilliance of 2.8x10(13) A/m(2), making this cathode an excellent candidate for an ultrashort electron source. (C) 2011 Optical Society of America

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quantum efficiency,metals,cathodes

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