| 摘要 |
A support unit (200), a support device (100), and an emission tomography device using the support device (100). The support unit (200) comprises: a support main body (210), in which an accommodation space (220) that penetrates through the support main body is provided, comprising multiple support positions (230A, 230B) that are distributed along a circumferential direction of the accommodation space (220); and multiple fastening devices (240A, 240B), connected to at least some of the multiple support positions. At least some of the multiple fastening devices (240A, 240B) can move between a contraction position and an extension position along a radial direction of the accommodation space (220). The fastening devices (240A, 240B) are used to fasten a detector of the emission tomography device. When the fastening devices (240A, 240B) are located at the contraction position, a first detector fastening ring of a first diameter is formed, and when the fastening devices (240A, 240B) are located at extension position, a second detector fastening ring of a second diameter that is smaller than the first diameter is formed. The emission tomography device using the support unit (200) can adjust at least a radial length of a detection cavity, so that a relatively large tree-dimensional space angle can be obtained, thereby improving detection sensitivity. |
