Femtosecond pulse radiolysis and femtosecond electron diffraction

A femtosecond pulse radiolysis with a time resolution of 210 fs has been developed by using a femtosecond electron beam and a femtosecond laser light. It has successfully opened the study of ultra-fast reactions or phenomena in materials—the first observation of the femtosecond formation process of...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-05, Vol.637 (1), p.S24-S29
Main Authors: Yang, Jinfeng, Kan, Koichi, Kondoh, Takafumi, Yoshida, Yoichi, Tanimura, Katsumi, Urakawa, Junji
Format: Article
Language:English
Subjects:
Accelerators
Electron beams
Electron diffraction
Femtosecond
Femtosecond electron beam
Femtosecond electron diffraction
Femtosecond pulse radiolysis
Femtosecond pulses
Lasers
Photocathode rf gun
Photocathodes
Radiolysis
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Summary:A femtosecond pulse radiolysis with a time resolution of 210 fs has been developed by using a femtosecond electron beam and a femtosecond laser light. It has successfully opened the study of ultra-fast reactions or phenomena in materials—the first observation of the femtosecond formation process of the hydrated electron in water pulse radiolysis. The use of a photocathode femtosecond electron gun, which produces a near-relativistic 100 fs electron beam, has been approached to construct femtosecond megavolt electron diffraction. The dependencies of the emittance, bunch length, and energy spread on the radio-frequency (rf) and space-charge effects in the rf gun have been investigated.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2010.02.014