Laboratory x-ray fluorescence holography equipment was developed. A single-bent graphite monochromator with a large curvature and a high-count-rate x-ray detection system were applied in this equipment. To evaluate the performance of this equipment, a hologram pattern of a gold single crystal was measured. It took two days, which was about one-third the time required for the previous measurements using the conventional x-ray source and several times that using the synchrotron source. The quality of the hologram pattern is as good as that obtained using the synchrotrons. Clear atomic images on (002) are reconstructed.
High-temperature heat treatment of polyimide (Kapton) film yielded a highly oriented graphite film, composed of nearly ideal thin graphite layers with 6 ~ 7nm in thickness. The graphite films assumed various characteristic forms in appearance depending on heat-treatment. The graphite films containing minute vesicles within the film were obtained starting from a thick polyimide film, which yielded a flexible graphite sheet with excellent physical and mechanical properties compared with commercialized, expanded graphite sheets.
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