| 摘要 |
A phase-contrast X-ray imaging system according to the present invention comprises an X-ray interferometer, wherein X-ray interfering beams thicker than 2 cmx2 cm are formed enabling observation of comparatively large objects. The X-ray interferometer is constituted by two crystal blocks which each are monolithically cut out from ingots of crystal and have two wafers which function as X-ray half mirrors. An optical equipment, a chamber, and a feedback system are incorporated to adjust and stabilize the crystal blocks. A device is also incorporated to obtain an image showing the distribution of the X-ray phase shift with which diagnosis become easier and reliable.
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