New focusing multilayer structures for X-ray and VUV plasma spectroscopy |
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| Authors: | A Ya Lopatin V I Luchin N N Salashchenko N I Chkhalo A P Shevelko and O F Yakushev |
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| Institution: | (1) Department of Chemistry and Chemical Physics Institute, University of Oregon, 97403-1253 Eugene, OR, USA |
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| Abstract: | We investigate the spectral characteristics of new focusing multilayer structures used as dispersive elements in a high-transmission X-ray spectrometer with cylindrical geometry (Hamos scheme): W/B4C structures in a wavelength range of λ = 8.0?9.5 Å and Cr/Sc structures in a range of λ = 30?40 Å (the range is not accessible for natural crystals). The results of demonstration experiments on laser-produced plasma spectra recording are considered. It is shown that the luminosity of a Hamos spectrometer with multilayer dispersive elements is an order of magnitude higher than the luminosity of grazing-incidence grating spectrographs with a comparable spectral resolution. |
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