Observation of a hot high-current electron beam from a self-modulated laser wakefield accelerator

被引：107
|
作者：
Santala, MIK
Najmudin, Z
Clark, EL
Tatarakis, M
Krushelnick, K
Dangor, AE
Malka, V
Faure, J
Allott, R
Clarke, RJ
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Plasma Phys Grp, London SW7 2BZ, England
[2] Univ Paris 06, Ecole Polytech, LULI, CEA,CNRS, F-91128 Palaiseau, France
[3] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England
[4] Helsinki Univ Technol, Dept Engn Math & Phys, Helsinki 02015, Finland
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.86.1227
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A highly relativistic electron beam produced by a 50 TW laser-plasma accelerator has been characterized by photonuclear techniques. The beam has large divergence that increases with plasma density. The electron yield also increases with plasma density and reaches up to 4 X 10(11) electrons (>10 MeV), with beam current approaching the Alfven limit. Effective electron temperatures exceeding 8 MeV are found, leading to an order of magnitude higher photonuclear activation yield than in solid target experiments with the same laser system.
引用
收藏
页码：1227 / 1230
页数：4
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