| 摘要 |
PURPOSE:To detect with high accuracy a foreign matter, etc., in an object to be inspected, by forming an electrophotographic latent image of the object to be inspected, on an X-ray electrophotographic recording body, converting this latent image to a powder image and converting it to an electric signal, thereafter, displaying it as an X-ray tomographic image on a monitor. CONSTITUTION:An object to be inspected 6 is stored in a containing case 4, thereafter, an X-ray electrophotographic recording body 11 is moved in the direction as indicated with an arrow A, electrified by a corona electrifier 12, and stopped at the lower part of the containing case 3. Subsequently, by driving an X-ray generating device 1, X-rays are radiated to the object to be inspected 6, and by its transmission X-rays, an electrophotographic latent image is formed on the recording body 11. Next, this recording body 11 is moved to the position of a developing device 16 and brought to a development processing, and converted to a visible powder image. Thereafter, this developed recording body 11 is moved to the position of an image read part 18, said visible powder image is converted to an electric signal by a photoelectric converting means 54, and its converting signal is inputted to a CRT display device 55. An inspector decides whether the object to be inspected is acceptable or not, by observing visually an image displayed on this display.
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