使用比较法对高温激光产生的钨等离子体进行光谱诊断

IF 0.6 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY

Bulletin of the Lebedev Physics Institute Pub Date : 2024-10-17 DOI:10.3103/S1068335624601134

A. P. Shevelko

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引用次数: 0

摘要

我们报告了对激光产生的钨等离子体的 X 射线光谱中的结构和线的绝对强度的详细研究。等离子体是通过将激光脉冲（0.53 μm，5 J，2 ns）聚焦到大质量固体靶上产生的。光谱由两个聚焦晶体光谱仪测量，波长范围为 λ = 4-8 Å，光谱分辨率为 λ/δλ = 600-1500。利用类似[He]离子的轻元素光谱对等离子体进行诊断。测量了光源的绝对光谱亮度，并使用比较法估算了 Te = 500-750 eV 范围内钨等离子体电子的温度。

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Spectroscopic Diagnostics of High-Temperature Laser-Produced Tungsten Plasmas Using the Comparison Method

We report a detailed study of the structure and absolute intensities of lines in the X-ray spectra of laser-produced tungsten plasmas. Plasmas are generated by focusing a laser pulse (0.53 μm, 5 J, 2 ns) onto massive solid targets. The spectra are measured by two focusing crystal spectrometers in the wavelength range of λ = 4–8 Å with a spectral resolution of λ/δλ = 600–1500. Plasmas are diagnosed using spectra of [He]-like ions of light elements. Absolute spectral brightness of the source is measured, and the temperature of tungsten plasma electrons in the range of T_e = 500–750 eV is estimated using the comparison method.

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来源期刊

Bulletin of the Lebedev Physics Institute PHYSICS, MULTIDISCIPLINARY-

CiteScore

0.70

自引率

25.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.