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25 September 1995 High-luminosity monochromatic x-ray backlighting using an incoherent plasma source to study extremely dense plasmas
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The results are presented of investigations of extremely dense plasmas generated from exploding wires using a new method, monochromatic x-ray backlighting. In this method, shadow images of a bright, dense plasma can be obtained with high spatial resolution using monochromatic radiation from a separate plasma, permitting a major reduction in the required backlighting source power. The object plasma is imaged utilizing x-ray optical elements with spherically bent mica crystals. In particular, shadow images of exploding Al wire plasmas in the 1s2-1s3p line radiation of He-like Al XII were obtained. The images confirm the existence of a low density 'corona' around the wire at an early stage of the wire explosion process, with a dense core at the original wire position. Test experiments were also done with laser produced backlighter plasmas. Spatial resolution of 10 microns was demonstrated. The scheme described here is useful for backlighting extended high density plasmas, and could be a less costly alternative to using x-ray lasers for such purposes.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergey A. Pikuz, Tatyana A. Shelkovenko, Vera M. Romanova, David A. Hammer, Anatoly Ya. Faenov, Vladimir M. Dyakin, and Tatiana A. Pikuz "High-luminosity monochromatic x-ray backlighting using an incoherent plasma source to study extremely dense plasmas", Proc. SPIE 2520, Soft X-Ray Lasers and Applications, (25 September 1995);


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