Temperature and Kα-yield radial distributions in laser-produced solid-density plasmas imaged with ultrahigh-resolution x-ray spectroscopy

被引：30

作者：

Zastrau, U. ^{[1
]}

Audebert, P. ^{[2
]}

Bernshtam, V. ^{[3
]}

Brambrink, E. ^{[2
]}

Kaempfer, T. ^{[1
]}

Kroupp, E. ^{[3
]}

Loetzsch, R. ^{[1
]}

Maron, Y. ^{[3
]}

Ralchenko, Yu. ^{[4
]}

Reinholz, H. ^{[5
]}

Roepke, G. ^{[5
]}

Sengebusch, A. ^{[5
]}

Stambulchik, E. ^{[3
]}

Uschmann, I. ^{[1
]}

Weingarten, L. ^{[3
]}

Foerster, E. ^{[1
]}

机构：

[1] Univ Jena, Inst Opt & Quantenelekt, D-07743 Jena, Germany

[2] Ecole Polytech, CNRS, CEA UMR 7605, Lab Utilisat Laser Intenses, F-91128 Palaiseau, France

[3] Weizmann Inst Sci, Fac Phys, IL-76100 Rehovot, Israel

[4] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[5] Univ Rostock, Inst Phys, D-18051 Rostock, Germany

来源：

PHYSICAL REVIEW E | 2010年 / 81卷 / 02期

关键词：

IGNITION; PULSES;

D O I：

10.1103/PhysRevE.81.026406

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We study warm dense matter formed by subpicosecond laser irradiation at several 10(19) W/cm(2) of thin Ti foils using x-ray spectroscopy with high spectral (E/Delta E similar to 15,000) and one-dimensional spatial (Delta x=13.5 mu m) resolutions. Ti K alpha doublets modeled by line-shape calculations are compared with Abel-inverted single-pulse experimental spectra and provide radial distributions of the bulk-electron temperature and the absolute-photon number K alpha yield in the target interiors. A core with similar to 40 eV extends homogeneously up to ten times the laser-focus size. The spatial distributions of the bulk-electron temperature and K alpha yield are strongly correlated.

引用

页数：4

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