| 摘要 |
<p>A support column 3 holds an X-ray tube 1 having a collimator and is held by a linear guide on a side of a main frame 4 and moved in the longitudinal direction of a table top board by a motor via a gear and a rack. An image receiving system 5 to hold an image intensifier 6 is supported by a linear guide on a side of the main frame and moved in the longitudinal direction of the table top board 7 by a drive mechanism independently from the support column. The table top board can be moved to a position close to the support column on an upper portion of the main frame. When the support column is moved in the longitudinal direction, it is possible for an operator to approach a subject person from an back side portion of the table top board while the operator is being kept in an easy body orientation. <IMAGE></p> |
