| 摘要 |
PROBLEM TO BE SOLVED: To provide a radiographic apparatus in which shadows of an absorption foil can be sufficiently removed by securely making an arrangement pitch of shadows is an integral multiple of an arrangement pitch of detection elements by adjusting a clearance between an FPD and an X-ray grid. SOLUTION: According to the construction, the radiographic apparatus includes a shim 26 for adjusting the clearance between a case 3c of the FPD and an X-ray grid 5. According to the construction, because the clearance between the case 3c of the FPD and the X-ray grid 5 can be adjusted, the shadow of an absorbing body projected on a radiation detecting plane has a suitable size. Further, the adjustment of the clearance between the case 3c of FPD and the X-ray grid 5 is carried out based on the radiation detecting plane and the absorbing body. Accordingly, even if the position of the case 3c of the FPD relative to the radiation detecting plane is not strict, it is secured that the position of the absorbing body relative to the radiation detecting plane is precisely adjusted all the time. COPYRIGHT: (C)2011,JPO&INPIT |
