| 等离子体X射线吸收谱及发射谱研究 |
| |
| 引用本文： | 彭永伦, 杨莉, 王民盛, 等. 等离子体X射线吸收谱及发射谱研究[J]. 强激光与粒子束, 2002, 14(03). |
| |
| 作者姓名： | 彭永伦 杨莉 王民盛 李家明 |
| |
| 作者单位： | 1.清华大学 物理系及原子分子纳米科学中心, 北京 1 00084;;;2.中国科学院 物理研究所 北京 1 00080 |
| |
| 摘 要： | 报道计算高温高密等离子体吸收谱和发射谱（光学薄）的理论方法；该方法基于相对论原子理论，可以计算任何单元素以及多元素等离子体的谱分辨X射线吸收谱和发射谱（光学薄）；应用了量子亏损理论，可以减少计算量。利用该方法计算金等离子体LTE吸收谱，计算结果与实验符合良好。本文还对金等离子体LTE的光学薄发射谱进行了研究, 这将有利于对实验进行进一步的诊断分析。该理论计算方法还可提供等离子体内各电离度能级布居等重要物理参数。因此经“标准实验”检验的该理论计算方法将是提供ICF“精密”物理辐射参数的重要基础。
|
| 关 键 词： | X射线 等离子体 吸收谱 发射谱 |
X-ray absorption spectra and emission spectra of plasmas |
| |
| peng yong-lun, yang li, wang min-sheng, et al. X-ray absorption spectra and emission spectra of plasmas[J]. High Power Laser and Particle Beams, 2002, 14. |
| |
| Authors: | peng yong-lun yang li wang min-sheng li jia-ming |
| |
| Affiliation: | 1. Department of Physics,Center of Atomic and Molecular Nanosciences Tsinghua University,Beijing 100080,China;;;2. Institute of Physics,the Chinese Academy of Scinces,Beijing 100080,China |
| |
| Abstract: | This paper reports a theoretical method to calculate the resolved absorption spectra and emission spectra (optically thin) of hot dense plasmas. Due to its fully relativistic treatment incorporated with the quantum defect theory, it calculates the absorption spectra dn emission spectra for single element or multi-element plasmas with little computational efforts. The calculated absoption spectra of LTE gold plasmas agree well with the experimental ones. It also calculated the opticaliy thin emission spectra of LTE gold plasmas, which is helpful to diagnose the plasmas of relevant ICF plasmas. It can also provide the relevant paramenters such as populatin density of various ionic stages, precise radiative propties for ICF studies. |
| |
| Keywords: | x-ray plasma absorption spectra emission spectra |
|
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载全文 |
|
