The determination of parameters of recombining laser-produced plasmas by means of X-ray spectroscopy

Abstract
The investigation of expanding laser-produced plasmas has been carried out. X-ray spectra of multicharged F VIII and F IX ions were observed in the wavelength range lambda approximately 11-17 AA for the regions of expanding plasma, remote from the target surface by up to 10 mm. The calculations of resonance and intercombination line relative intensities were made, taking into account recombination of the population of ion levels in the case of sharply non-equilibrium plasma ionisation states. The results of the calculation are utilised for an investigation of expanding laser-produced fluorine plasmas.