A. Macchi et al., EXPERIMENTAL-STUDY OF X-RAY GENERATION IN LASER-PRODUCED PLASMAS BASED ON K-SHELL TIME-RESOLVED SPECTROSCOPY, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 18(6), 1996, pp. 727-738
Soft-X-ray generation in aluminium plasmas produced by Nd nanosecond l
aser pulses is investigated analysing time-resolved spectra of K-shell
line emission. Time histories of line emission and electron temperatu
re as well as the time-integrated X-ray yield were studied as a functi
on of laser pulse duration and target position along the laser beam pr
opagation ads. The experimental results suggest that X-ray emission is
influenced by self-focusing of laser light in the plasma.