Study of the ion-distribution dynamics of an aluminum laser-produced plasma with picosecond resolution

被引：26

作者：

Fajardo, M ^{[1
]}

Audebert, P

Renaudin, P

Yashiro, H

Shepherd, R

Gauthier, JC

Chenais-Popovics, C

机构：

[1] Univ Paris 06, Ecole Polytech, Lab Utilisat Lasers Intenses, CEA,CNRS,UMR7605, F-91128 Palaiseau, France

[2] CEA, F-91680 Bruyeres Le Chatel, France

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

[4] Inst Super Tecn, GOLP, Lisbon, Portugal

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.86.1231

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ion-distribution dynamics of an expanding aluminum plasma produced by a nanosecond laser pulse at moderate intensity (10(13) W cm(-2)) is studied by point-projection x-ray absorption spectroscopy with unprecedented, picosecond, time resolution. We show that the ionic populations measured as a function of distance to the target and ac different probing times differ markedly from those predicted by widely accepted collisional radiative models coupled to hydrodynamic simulations. We discuss the effects of radiation, conduction, and expansion cooling on the spatiotemporal ionic distribution evolution.

引用

页码：1231 / 1234

页数：4

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