Development of a Physically Bent Cylindroid Mirror for Grazing-Incidence Small-Angle Scattering with a Focused Neutron Beam

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To realize a grazing-incidence small-angle scattering measurement on a neutron reflectometer with relatively short camera length, focusing devices using a cylindrically bent supermirror coated on a flat float glass substrate were developed. They have been characterized with pulsed neutrons, and the neutron beam was successfully focused into about 1mm width in either vertical or horizontal direction using the bent mirror with the focal distance of about 4 m.