Open AccessExperimental generation of 58 MeV quasi-monoenergetic electron beam by ultra-intense femto-second laser wakefield
Author(s) -
Dong Kegong,
Yuqiu Gu,
Bin Zhu,
Wu Yuchi,
Leifeng Cao,
He Ying-Ling,
Hongjie Liu,
Wei Hong,
Weimin Zhou,
Zili Zhao,
Chen Jiao,
Wen Xian-Lun,
Baohan Zhang,
Xiaofang Wang
Publication year - 2010
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.8733
Subject(s) - atomic physics , femtosecond , physics , laser , cathode ray , electron , beam (structure) , plasma , optics , nuclear physics
Monoenergetic electron bunches can be generated by the interaction between the ultra-intense laser and underdense plasma on the mm scale. In the experiment conducted on the SILEX-Ⅰ, by the interaction between an ultra-intense femtosecond laser pulse and 2.7 mm supersonic He gas jet, a 58 MeV quasi-monoenergetic electron beam with 15.5% energy spread and 15 mrad beam divergence is produced. The total charge of the electron beam is about 15.4 nC when the laser power is 70 TW. In this paper the experimental conditions, the method and main results are presented.