Abstract
X-ray spectroscopy provides a variety of means for studying the interaction of lasers with plasmas, in particular the interaction with imploding targets in inertial confinement fusion. A typical fusion target is composed of materials other than the thermonuclear fuel which play a variety of roles (tamping, shielding, thermal isolation, etc.). These structural elements emit characteristic X-ray lines and continua, and through their spectral and spatial distributions can yield very valuable information on the interaction and implosion dynamics. Examples are the study of heat conductivity, the mixing of different target layers, and the determination of temperature and density at the compressed target core. Results will be shown for electron densities
N
e
= 10
24
cm
-3
and temperatures
T
= 1 keV measured during compression of argon-filled targets with a six-beam laser of peak power 2 TW.
Cited by
15 articles.
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