Apparatus and method for x-ray imaging

摘要

A X-ray image forming method, comprising steps of: conducting a magnifying radiography by irradiating an object with divergent X-ray emitted from a X-ray tube; and forming a X-ray image by detecting X-ray passing through the object by a X-ray detector; wherein the magnifying radiography is conducted to satisfy the following formula: 9E≥B, where B is a width ( mu m) of a blurred portion of the X-ray image caused by penumbra and E is a width ( mu m) of an edge portion enhanced by X-ray refraction contrast.