Observation on spatial character of plasmas electron temperature for Mg/Al dotted targets by isoelectronic line ratios

The experiments were performed to determine the profile of electron temperature in Mg/Al doted target irradiated by laser beams at wavelength of 0.35 μm from the 'Xingguang II' laser facility. X-ray spectra from the target were measured by a spatially resolved crystal spectrometer. The technique of multi-configuration Dirac-Fock was used to calculate relevant atomic parameters. Variations of relative intensity of isoelectronic lines from the double tracing materials in laser-produced plasmas with electron temperature were derived according to local-thermodynamic-equilibrium model. And, the spatial character of electron temperature in plasmas was determined via isoelectronic spectral line intensity ratios