| 摘要 |
<p>A universal radiographic apparatus that allows an operator to select between conventional radiographic mode and linear tomographic mode. In conventional radiographic mode of operation, several automatic modes are provided. An x-ray tube (106) mounted to a tube crane (104) positioned above an elevating table (107) can be accurately controlled in longitudinal and vertical movement, as well as in x-ray tube angulation. In linear tomographic mode, a table bucky (108) is moved laterally in opposition to movement of the tube crane (104), with angulation keeping the tube aimed at the bucky (108). In conventional radiographic mode, the system supports an auto bucky mode, where the table bucky automatically tracks tubecrane motion (104), or an auto table mode, where the tube crane (104) tracks table vertical motion (107) to maintain a fixed SID. In an auto wall mode, the tube crane (104) tracks vertical movement of an associated wall bucky (109).</p> |
