High-Brightness Electron Sources for a Next Generation Light Source by an Energy Recovery Linac

A high-brightness electron source of ultra-small emittance and high-average current is one of the most important components for next-generation light sources based on an energy-recovery linac (ERL). Such a high-brightness electron source can be realized by a DC photo-cathode gun driven by laser puls...

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Veröffentlicht in:	Denki Gakkai ronbunshi. C, Erekutoronikusu, joho kogaku, shisutemu Information and Systems, 2009/02/01, Vol.129(2), pp.253-258
Hauptverfasser:	Iijima, Hokuto, Nagai, Ryoji, Nishimori, Nobuyuki, Hajima, Ryoichi
Format:	Artikel
Sprache:	eng
Schlagworte:	coherent X-ray electron source energy-recovery linac femtosecond X-ray next generation light source photocathode
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Zusammenfassung:	A high-brightness electron source of ultra-small emittance and high-average current is one of the most important components for next-generation light sources based on an energy-recovery linac (ERL). Such a high-brightness electron source can be realized by a DC photo-cathode gun driven by laser pulses tailored in temporal and spatial dimensions. We propose a novel photocathode based on a quantum cascade laser (QCL). Since ultrafast response of photo-electron emission from the QCL is compatible with tailored laser pulses, it is a candidate for the electron source for ERLs.
ISSN:	0385-4221 1348-8155
DOI:	10.1541/ieejeiss.129.253