Title :
High quantum efficiency, low emittance electron beam from multifilamentary cathodes
Author :
Ardana, Fernando ; Le Pimpec, Frederic ; Anghel, Alexander ; Hauri, Christoph P.
Author_Institution :
Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland
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 2.8×1013 A/m2, making this cathode an excellent candidate for an ultrashort electron source.
Keywords :
cathodes; electron beams; electron sources; emittance emission; low emittance electron beam; metallic cathode; multifilamentary cathode; quantum efficiency; ultrashort electron source; Cathodes; Electron beams; Free electron lasers; Laser excitation; Metals; Surface emitting lasers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
