Experimental study of polarization of lines, emitted by the plasma of Z-pinch devices

Summary form only given. Polarization of X-ray lines is a well known fact in solar plasma. An experimental study of polarization of X-ray line emission from laboratory plasmas (plasma focus device, vacuum spark device) are given in this paper. The Investigation of spectra of He-like Ar in the range of 3.5-5 A, emitted from the plasma of Mather type focus device and spectra of He-like Fe in the range of 1.7-2 A from vacuum spark device were carried out by two focusing spectrographs with quartz crystals (2d=8.5 A; 2d=6, 67 A). The dispersion planes of devices were oriented perpendicular one with respect to another. The main feature of the spectra obtained is the difference between the relative intensities of resonance and intercombination lines, registered in the same experiment with different spectrographs.