| 摘要 |
<p>A radiographic apparatus includes an X-ray generator (1) for radiating X-rays, two slit members (3, 4) sequentially arranged to oppose the X-ray generator, a subject (8) being arranged between the slit members (3, 4), and each of the slit members having at least one linear slit for narrowing down X-rays to obtain a slit-like X-ray beam, a slit member moving unit (5, 6) for moving the slit members in such a manner that an X-ray tube focal point and the slits of the slit members are always aligned with each other, and a cassette film (9) for two-dimensionally recording a slit-like X-ray beam obtained by causing X-rays to pass through the object and the linear slits of the slit members.</p> |
