One of the important signatures of non-thermal high-atomic-number multiply ionized plasmas is polarization of hard x-ray line emission. Atomic processes in laboratory and astrophysical plasmas with anisotropic electron distribution that can lead to such polarization include dielectronic recombination. All previous research on x-ray line polarization of dielectronic satellite lines was mostly focused on K-shell radiation. Here we present one of the first studies of polarization of L-shell dielectronic satellite lines using the hard x-ray spectra of Na-like W produced by dielectronic recombination. Polarization of dielectronic satellites is calculated using two approaches: density matrix formalism and the FAC code. The most intense dielectronic satellite lines of Na-like W appeared to be positively polarized with the maximum degree of polarization between 0.4545 and 0.6. Polarization-dependent dielectronic satellite spectra of Na-like W are calculated with a gaussian electron distribution function centered at the beam energies from 2400 eV to 4100 eV. Such spectra cover the spectral range from 1.19 Å to 1.38 Å with each spectrum including two traces of line intensities associated with the parallel polarization and perpendicular polarization state. The polarization-dependent spectra were found to be strongly dependent on the energy of the electron beam which can be used for the development of x-ray plasma polarization spectroscopy to study non-thermal multiply ionized W plasmas. Radiative and polarization properties of W radiation studied in this paper are important for fusion research.

非热高原子数多重电离等离子体的重要特征之一是硬 X 射线线发射的极化。具有各向异性电子分布的实验室和天体物理等离子体中的原子过程可导致这种极化，包括双电子复合。以前所有关于双电子卫星线的 X 射线线极化的研究主要集中在 K 壳辐射上。在这里，我们使用双电子复合产生的类钠 W 的硬 X 射线光谱展示了 L 壳双电子卫星线极化的首批研究之一。双电子卫星的极化使用两种方法计算：密度矩阵形式主义和 FAC 码。Na-like W 最强烈的双电子卫星线似乎是正极化的，最大极化度在 0.4545 和 0.6 之间。Na-like W 的极化相关双电子卫星光谱是用高斯电子分布函数计算的，该函数以 2400 eV 到 4100 eV 的束能量为中心。此类光谱涵盖了从 1.19 Å 到 1.38 Å 的光谱范围，每个光谱包括与平行偏振和垂直偏振状态相关的两条线强度轨迹。发现偏振相关光谱强烈依赖于电子束的能量，电子束的能量可用于开发 x 射线等离子体偏振光谱，以研究非热多电离 W 等离子体。