Suprathermal electron diagnostics, based on X-ray line radiation polarization measurements

Summary form only given. Suprathermal electrons play an important role in energy transfer and in the formation of emission spectra in a plasma. An electron beam energy estimation on the basis of polarization measurements of X-ray lines is presented in this paper. Experiments were carried out on the PF Mather type facility. The investigation of spectra of He-like Ar in the range of 3.5-5 /spl Aring/ was made by two focusing crystal spectrographs, oriented perpendicular; one with respect to another and to discharge axis. Such an arrangement makes it possible to measure the dependence of relative intensities of X-ray lines on crystal orientation.