{"title":"使用比较法对高温激光产生的钨等离子体进行光谱诊断","authors":"A. P. Shevelko","doi":"10.3103/S1068335624601134","DOIUrl":null,"url":null,"abstract":"<p>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 <i>T</i><sub><i>e</i></sub> = 500–750 eV is estimated using the comparison method.</p>","PeriodicalId":503,"journal":{"name":"Bulletin of the Lebedev Physics Institute","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Spectroscopic Diagnostics of High-Temperature Laser-Produced Tungsten Plasmas Using the Comparison Method\",\"authors\":\"A. P. Shevelko\",\"doi\":\"10.3103/S1068335624601134\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 <i>T</i><sub><i>e</i></sub> = 500–750 eV is estimated using the comparison method.</p>\",\"PeriodicalId\":503,\"journal\":{\"name\":\"Bulletin of the Lebedev Physics Institute\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-10-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Lebedev Physics Institute\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1068335624601134\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Lebedev Physics Institute","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1068335624601134","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
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。
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 Te = 500–750 eV is estimated using the comparison method.
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.
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