The characteristic lines K-α, Ly-α and He-α X-ray
source for diagnostics of the compressed state of laser plasma was
proposed, and its optimal parameters were calculated under the
conditions required for nuclear fusion [1]. Such a source operating
in a pulsed regime can be used for determining the spatial
distribution of laser- plasma density with high temporal resolution
by means of multi-frame backlight imaging of the main target by
X-ray pulses obtained by picosecond laser pulses irradiation of a
secondary target. In the present report, we analyze the scheme
with Ly-α/He-α line emission, found quantitative parameters of a
multi-frame X-ray source for radiography of compressed state
nuclear-fusion target, and describe images of the target in the case
of spherically (elliptically) symmetric compression.