• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental and Theoretical Physics >Calculation of Spectral and Rosseland Paths in a Plasma with Multiply Charged Ions Based on a Statistical Approach
【24h】

Calculation of Spectral and Rosseland Paths in a Plasma with Multiply Charged Ions Based on a Statistical Approach

机译：基于统计方法的带多重电荷离子的等离子体光谱和Rosseland路径的计算

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The semiclassical approach to determine the Fourier components of the electron dipole moment disregarding polarization (noninteracting electron model) is used for analyzing ion oscillator strengths and determining the radiation properties of plasmas consisting of multiply charged ions of heavy elements. The oscillator strength distribution df/dω (proportional to the photoabsorption cross section) is calculated as a function of the degree of ionization and self-similar frequency Ω = ω/Z. It is found that for low degrees of ionization, function df/dω for an ion is close to function df/dω for a neutral atom; upon an increase in the degree of ionization, regions are formed in which df/dω = 0 (transparency windows) and the photoabsorption cross section for high degrees of ionization differs from zero only in small frequency ranges. The resultant distribution of the ion oscillator strengths is used for calculating the polarizability of ions as a function of frequency and the cross section of radiation scattering on ions. For a gold plasma, the absorbance and opacity (both spectral and averaged according to Rosseland and Planck) are calculated. The results of computing the paths and absorption coefficients coincide in order of magnitude with the available data. The effect of scattering on the Rosseland path is estimated.
机译：使用半经典方法确定不考虑极化的电子偶极矩的傅立叶分量（非相互作用电子模型），用于分析离子振荡器的强度并确定由重元素的多电荷离子组成的等离子体的辐射特性。根据电离度和自相似频率Ω=ω/ Z计算振荡器强度分布df /dω（与光吸收横截面成比例）。发现对于低电离度而言，离子的函数df /dω接近于中性原子的函数df /dω。随着电离度的增加，形成的区域中df /dω= 0（透明度窗口），并且高电离度的光吸收截面仅在较小的频率范围内不同于零。离子振荡器强度的最终分布用于计算离子的极化率，该极化率是频率和离子上辐射散射截面的函数。对于金等离子，将计算吸光度和不透明度（光谱和根据Rosseland和Planck求平均值）。计算路径和吸收系数的结果在数量级上与可用数据一致。估计了散射对Rosseland路径的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号