Plasma characterization using ultraviolet Thomson scattering from ion-acoustic and electron plasma waves

被引：47

作者：

Follett, R. K. ^{[1
]}

Delettrez, J. A. ^{[1
]}

Edgell, D. H. ^{[1
]}

Henchen, R. J. ^{[1
]}

Katz, J. ^{[1
]}

Myatt, J. F. ^{[1
]}

Froula, D. H. ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, 250 East River Rd, Rochester, NY 14623 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2016年 / 87卷 / 11期

关键词：

SATURATION;

D O I：

10.1063/1.4959160

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Collective Thomson scattering is a technique for measuring the plasma conditions in laser-plasma experiments. Simultaneous measurements of ion-acoustic and electron plasma-wave spectra were obtained using a 263.25-nm Thomson-scattering probe beam. A fully reflective collection system was used to record light scattered from electron plasma waves at electron densities greater than 10(21) cm(-3), which produced scattering peaks near 200 nm. An accurate analysis of the experimental Thomson-scattering spectra required accounting for plasma gradients, instrument sensitivity, optical effects, and background radiation. Practical techniques for including these effects when fitting Thomson-scattering spectra are presented and applied to the measured spectra to show the improvements in plasma characterization. Published by AIP Publishing.

引用

页数：6

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