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

页码：1227 / 1230

页数：4

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