| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray radiographic device capable of obtaining an image having no reflection of marks. SOLUTION: In this device, an area sensor 12 is housed in a casing 11, and a face on the X-ray tube side irradiated with X-rays is installed with a surface plate 13. The marks 14a, 14b, 14c, 15a, 15b, 15c with a projection part of the housed area sensor 12 shown in a dotted line to the surface plate 13 as start points are displayed on a surface of the surface plate 13 toward the outside, and end points of the respective marks 14a, 14b, 14c, 15a, 15b, 15c reach a side face of the casing 11. By displaying the marks 14, 15 out of a detection range of the area sensor 12, a correction error of gain correction before actual photography is eliminated to always execute the actual photography by use of a normal correction value.
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