X-ray spectroscopy on Double Eagle and DM-2

Summary form only given. The radial distribution of the ion density and electron temperature in a Z-pinch has been inferred by comparing the measured values of the X-ray power and the ratio of optically thick spectral line intensities with calculated ones for a range of assumed radial distributions. This procedure provided evidence for an on-axis dip in the ion density. A complementary procedure is described to analyze spectra obtained on the DM-2 and Double Eagle accelerators at Maxwell Physics International. In this case, the radially resolved intensities of optically thin dopants added to the pinch were measured using a high resolution Johann spectrometer, the line intensities were Abel inverted and the radial distribution of two line ratios [L/sub /spl alpha//(He/sub /spl alpha//+IC) and IC/He/sub /spl alpha//] were obtained from which the localized electron temperature and density were inferred.