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Femtosecond Pulse Radiolysis
Author(s) -
KONDOH TAKAFUMI,
YANG JINFENG,
KAN KOICHI,
GOHDO MASAO,
SHIBATA HIROMI,
YOSHIDA YOICHI
Publication year - 2016
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11787
Subject(s) - radiolysis , femtosecond , photocathode , femtosecond pulse shaping , electron , femtochemistry , pulse (music) , ultrashort pulse , materials science , laser , optics , ultrafast laser spectroscopy , atomic physics , irradiation , physics , nuclear physics , detector
SUMMARY Femtosecond pulse radiolysis has been developed in order to study reactions induced in materials by an electron beam. The femtosecond electron pulse is generated by optimizing the laser photocathode FR electron gun accelerator. A time resolution of 240 fs was achieved by using a femtosecond electron pulse, and the formation of hydrated electrons was observed under femtosecond pulse radiolysis. In order to improve the time resolution of the pulse radiolysis, the equivalent velocity spectroscopy (EVS) method is essential for avoiding degradation in the time resolution caused by velocity differences between the electrons and light in a sample.