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Inui, M.; Sato, K.; Mifune, K.; Matsuda, K.; Ishikawa, D.; Tamura, K.
Journal of non-crystalline solids, 10/2007, Letnik: 353, Številka: 32-40Journal Article, Conference Proceeding
Wide and small angle X-ray scattering measurements for supercritical fluid Se in the wide density region from liquid to dense vapor have been carried out using synchrotron radiation at SPring-8. The large background for the small angle spectra with the previous high-pressure vessel was much suppressed using a new vessel with a large diamond window. We carefully measured wide angle X-ray scattering near the critical density and obtained the structure factor, S(k), and the pair distribution functions, g(r). By small angle X-ray scattering measurements, we succeeded in observing a medium-range fluctuation in the semiconductor–metal transition in expanded fluid Se.
