X-ray absorption spectroscopy study of energy transport in foil targets heated by petawatt laser pulses

被引：17

作者：

Skobelev, I. Y. ^{[1
,2
]}

Ryazantsev, S. N. ^{[1
,3
]}

Arich, D. D. ^{[1
,2
]}

Bratchenko, P. S. ^{[1
,2
]}

Faenov, A. Y. ^{[1
,4
]}

Pikuz, T. A. ^{[1
,5
]}

Durey, P. ^{[6
]}

Doehl, L. ^{[6
]}

Farley, D. ^{[6
]}

Baird, C. D. ^{[6
]}

Lancaster, K. L. ^{[6
]}

Murphy, C. D. ^{[6
]}

Booth, N. ^{[7
]}

Spindloe, C. ^{[7
]}

McKenna, P. ^{[8
]}

Hansen, S. B. ^{[9
]}

Colgan, J. ^{[10
]}

Kodama, R. ^{[4
,5
]}

Woolsey, N. ^{[6
]}

Pikuz, S. A. ^{[1
,2
]}

机构：

[1] RAS, Joint Inst High Temp, Moscow 125412, Russia

[2] Natl Res Nucl Univ MEPhI, Moscow 115409, Russia

[3] Moscow MV Lomonosov State Univ, Moscow 119991, Russia

[4] Osaka Univ, Open & Transdisciplinary Res Initiat, Osaka 5650871, Japan

[5] Osaka Univ, Grad Sch Engn, Osaka 5650871, Japan

[6] Univ York, York Plasma Inst, Dept Phys, York YO10 5DD, N Yorkshire, England

[7] STFC Rutherford Appleton Lab, Cent Laser Facility, Didcot OX11 0QX, Oxon, England

[8] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

[9] Sandia Natl Labs, Albuquerque, NM 87123 USA

[10] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA

来源：

PHOTONICS RESEARCH | 2018年 / 6卷 / 04期

基金：

俄罗斯科学基金会; 英国科学技术设施理事会; 英国工程与自然科学研究理事会;

关键词：

IGNITION; ALUMINUM; FUSION; PLASMA;

D O I：

10.1364/PRJ.6.000234

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

X-ray absorption spectroscopy is proposed as a method for studying the heating of solid-density matter excited by secondary X-ray radiation from a relativistic laser-produced plasma. The method was developed and applied to experiments involving thin silicon foils irradiated by 0.5-1.5 ps duration ultrahigh contrast laser pulses at intensities between 0.5 x 10(20) and 2.5 x 10(20) W/cm(2). The electron temperature of the material at the rear side of the target is estimated to be in the range of 140-300 eV. The diagnostic approach enables the study of warm dense matter states with low self-emissivity.

引用

页码：234 / 237

页数：4

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