| 摘要 |
PURPOSE:To prevent photographing narrower than an irradiation field or overlapping of photographs by corresponding the adjustment of a stop changing the X-ray irradiation field and the feed rate of a film correctly. CONSTITUTION:When an X-ray generator 1 is driven, the transmitted image of a specimen 4 is formed on the input surface 5a of a fluorescent image multiplier 5. Further, the transmitted image amplified of luminance is formed on an output surface 5b. The image of the surface 5b is formed on the image receiving surface 9a of a camera 9 with lenses 6, 7, and is projected on an image receiver 10. When the observer of the image receiver 10 operates a release, a detector 13 detects the width L of the irradiation field and inputs the signal corresponding to the size of the photographing field to a film winding mechanism, which winds the roll film further. Thence, the image of the surface 5b is formed on a film 17 by the lenses 6, 11, whereby photographing is accomplished. |
