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Conferences > CLEO_AT > 2012 > JW2A > JW2A.11

High quantum efficiency, low emittance electron beam from multifilamentary cathodes

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

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Abstract

We present a new type of metallic cathode, reaching quantum efficiency of 103. This value together with the estimated emittance, gives a brilliance of 2.8×1013Am2, making this cathode an excellent candidate for an ultrashort electron source.

© 2012 Optical Society of America

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