Investigation of a laser-produced cerium plasma by the analysis of the high-resolution X-ray spectrum

The X-ray spectrum emitted from a highly stripped laser-produced cerium plasma was investigated. The spectrum was recorded using a high-resolution curved mica crystal spectrometer in the limited range 9.0-9.3 angstroms and with a flat RAP crystal spectrometer in a wider spectral range. In the case of high-resolution spectrum, a level-by-level collisional-radiative model was used. The high-resolution experimental spectrum and synthetic spectra were compared and the results showed an average electron temperature of about 230 eV.