STUDY OF X-RAY-SPECTRA OF HIGHLY STRIPPED IONS FROM LASER-INDUCED PLASMAS

The soft x-ray spectra of highly ionized titanium, iron, nickel, coppe r, zinc and germanium from laser-produced plasmas have been observed. The spectra in the range of 5-300 angstrom were recorded by using four flat crystal spectrographs with different 2d spacings and a 1-m grazi ng incidence (2-degrees) grating spectrometer. Several hundred lines w ere identified and classifed. The x-ray spectroscopic study of high-Z elements is carried out. In addition to the identification of the tran sitions, the continuous and quasi-continuous spectral character is als o analysed.