Figure 6
(a) Schematic of polystyrene latex beads of diameter 2.8 µm in a specimen holder. The polystyrene latex solution and a Cu mesh of pitch 25.4 µm were sandwiched with two sheets of quartz. (b) X-ray phase-contrast image at 8.97 keV. A nuclear emulsion plate was used. The exposure time was 90 s. |