| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray optically transmissive grating which can easily be manufactured. SOLUTION: This focal point-detector device (F<SB>1</SB>and D<SB>1</SB>) for an X-ray device (1) has a large number of grating projecting sections (S) which are cyclically arranged at least on one surface of at least one wafer, and a grating gap (L) in order to form a phase contrast image by projection or tomographing of examination objects (7 and P). In this X-ray optically transmissive grating (G<SB>x</SB>) of the focal point-detector device (1), the X-ray optically transmissive grating (G<SB>x</SB>) is constituted of at least two partial gratings (G<SB>x1</SB>and G<SB>x2</SB>) which are directly longitudinally arranged in the beam direction. COPYRIGHT: (C)2007,JPO&INPIT
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