ISSN:
1432-0649
Keywords:
52.50.Jm
;
52.40.Nk
;
52.25.Nr
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The effect of a short prepulse (0.5 ps) on soft X-ray spectra from a plasma generated by a high intensity KrF* laser pulse (main pulse: 0.5 ps, intensity I main=5.3×1015 W/cm2) on flat targets of Al and Cu has been studied in detail. The spectra have been measured as a function of the pulse separation Δt between the two pulses and the prepulse intensity I pre. It was found that both the overall emission and the line emission increased with Δt (at constant I pre) and with I pre (at constant Δt). In particular, lines in the shorter wavelength region had higher intensity. The influence of the prepulse on the line emission of specific transitions in the Al spectra was investigated systematicly. An explanation for the observed effects is given.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00325515
