J. Phys. IV France
Volume 133, June 2006
Page(s) 1001 - 1004
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1001-1004

DOI: 10.1051/jp4:2006133202

X-ray spectroscopic study of nonequilibrium laser produced plasma in porous targets of low average density

I.N. Burdonskiy1, V.V. Dimitrenko1, A.Ya. Faenov2, I.K. Fasakhov1, V.V. Gavrilov1, A.Yu. Goltsov1, N.G. Kovalskii1, A.I. Magunov2, B.N. Mironov1, T.A. Pikuz2 and I.Yu. Skobelev2

1  Science Research Center of Russian Federation Troitsk Institute for Innovation and Fusion Research, Troitsk, Moscow Reg. 142190, Russia
2  Multicharged Ions Spectra Data Center, VNIIFTRI, Mendeleevo 141570, Russia

New experimental results on laser irradiation (I$\,{\le}\,$1014 W/cm2, $\lambda $ = 1.053 $\mu $m) of low-density fibrous agar are presented. X-ray spectrometers with spherically bent mica crystals were used for measuring with high spectral resolution the line spectra of multicharge ions. Detailed analysis of the measured spectra made it possible to determine the temperature of electrons and ions in hot plasma created in laser irradiated low-density samples in dependence on average material density and average intensity within a focal spot. Significant difference between ion and electron temperatures is found for the whole range of experimental conditions.

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