Investigation of X-ray Emission from Plasmas Created by NIXE 6-nsec Nd: Glass Laser System |
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Authors: | E Frster K Goetz D Zimmer P Glas A Goetsch R Koch M Naumann P V Nickles M Schnürer I Will |
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Institution: | E. Förster,K. Goetz,D. Zimmer,P. Glas,A. Goetsch,R. Koch,M. Naumann,P. V. Nickles,M. Schnürer,I. Will |
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Abstract: | This paper reports details on the design of the Nd: glass laser facility NIXE at the Central Institute of Optics and Spectroscopy, including the target chamber and the x-ray diagnostics, spatial and temporal behaviour of the 1.06 μm radiation generated are given. Plane, massive targets of aluminium and silicon have been irradiated with 6-nsec FWHM laser pulses. Investigations of laser produced Al- and Si-plasmas have been performed with spectral and spatial high resolution diagnostics, consisting of a 3 channel crystal-spectrometer, 2 crystal-microscopes, and 2 pinhole cameras and the results are presented. Line spectra have been interpreted within the hypothesis of a steady state coronal equilibrium. He-like lines of the Al-plasma indicate temperatures up to 400 eV and densities up to 2 · 1020 cm?3. Total x-ray photon flux in the He-like resonance line has been calculated giving 1013 phot/ster. |
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