| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide radiographic equipment capable of surely preventing interference fringes. <P>SOLUTION: When radiographing a subject by reciprocatingly moving an X-ray grid 4 in the longitudinal direction H<SB>H</SB>of a top board 1, this radiographic equipment is so formed as to reciprocatingly move the X-ray grid 4 in the short-side direction H<SB>V</SB>of the top board by rotating the X-ray grid 4 by a driving part 5. That is to say, when radiographing the subject by reciprocatingly moving the X-ray grid 4 in the longitudinal direction H<SB>H</SB>in a state where the X-ray grid 4 is disposed in such a manner as disposing the streaks of a metal piece 4a along the longitudinal direction H<SB>H</SB>, this equipment can prevent the interference fringes in the image. On the other hand, when the X-ray grid 4 is rotated from the longitudinal direction H<SB>H</SB>to the short side direction H<SB>V</SB>for disposing the streaks of the metal piece 4a along the short-side direction H<SB>V</SB>and reciprocatingly moved in the short-side direction H<SB>V</SB>, this equipment can surely prevent the interference fringes. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
