| 摘要 |
<p>An industrial CT system is provided for three-dimensional imaging which includes a three-dimensional cone beam of hard radiation fixed with respect to a two-dimensional scintillation detector array (29). The object (25) is positioned on a turntable (24) interposed between the radiation source (12) and detector array (29). Data from two-dimensional views are stored as the object is rotated on the turntable (24) about a fixed axis. The data is sufficient upon completion of one revolution to construct a transparent three-dimensional image of the object. A positioning encoding arrangement (50) adjusts for variations in the object's mass density to optimize scan-compute times while enhancing image resolution.</p> |
