High-brightness electron sources for a next-generation light source based on an energy recovery linac

Hokuto Iijima, Ryoji Nagai, Nobuyuki Nishimori, Ryoichi Hajima

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A high-brightness electron source of ultrasmall 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 photocathode gun driven by laser pulses tailored in the temporal and spatial dimensions. We propose a novel photocathode based on a quantum cascade laser (QCL). Since the ultrafast response of photoelectron emission from QCL is compatible with the tailored laser pulses, it is a candidate electron source for ERLs.

    Original languageEnglish
    Pages (from-to)46-53
    Number of pages8
    JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
    Volume177
    Issue number3
    DOIs
    Publication statusPublished - 2011 Nov 30

    Keywords

    • coherent X-ray
    • electron source
    • energy-recovery linac
    • femtosecond X-ray
    • next-generation light source
    • photocathode

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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