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

Iijima Hokuto | Zendy; Nagai Ryoji | Zendy; Nishimori Nobuyuki | Zendy; Hajima Ryoichi | Zendy

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

Author(s) -

Iijima Hokuto,

Nagai Ryoji,

Nishimori Nobuyuki,

Hajima Ryoichi

Publication year - 2011

Publication title -

electrical engineering in japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.136

H-Index - 28

eISSN - 1520-6416

pISSN - 0424-7760

DOI - 10.1002/eej.21154

Subject(s) - photocathode , thermal emittance , brightness , linear particle accelerator , laser , physics , optics , electron gun , electron , ultrashort pulse , optoelectronics , cathode ray , beam (structure) , nuclear physics

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. © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 177(3): 46–53, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.21154

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