| 摘要 |
PROBLEM TO BE SOLVED: To easily grasp the beam irradiation range corresponding to the distance from a focus in an X-ray photographing apparatus for photographing a fluoroscopic image by a beam having an expanse toward a detector from the focus. SOLUTION: A support frame 24 is provided for supporting a tray 14, on which a specimen is placed, at a plurality of positions separated by predetermined distances from the focus 30 of the beam. The support frame has a receiving part 22 for receiving the tray at every position in order to support the tray at the positions. A mark for showing the irradiation range of the beam when the tray is supported by the receiving part is applied to the tray corresponding to the receiving part. COPYRIGHT: (C)2009,JPO&INPIT
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