Effect of the plasma density scale length on the direction of fast electrons in relativistic laser-solid interactions

被引：209

作者：

Santala, MIK

Zepf, M

Watts, I

Beg, FN

Clark, E

Tatarakis, M

Krushelnick, K

Dangor, AE

McCanny, T

Spencer, I

Singhal, RP

Ledingham, KWD

Wilks, SC

Machacek, AC

Wark, JS

Allott, R

Clarke, RJ

Norreys, PA

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Plasma Phys Grp, London SW7 2BZ, England

[2] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

[3] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[4] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England

[5] Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.84.1459

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The angular distribution of bremsstrahlung gamma rays produced by fast electrons accelerated in relativistic laser-solid interaction has been studied by photoneutron activation in copper. We show that the gamma-ray beam moves from the target normal to the direction of the k(laser) vector as the scale length is increased. Similar behavior is found also in 2D particle-in-cell simulations.

引用

页码：1459 / 1462

页数：4

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