| 摘要 |
<p>A whole-body radiotherapy device with radioactive sources (103) comprises a rotary fixing frame (801), a source body (101) and a collimator body (101) the rotating axis (6) being parallel to the longitudinal axis of a treatment couch (4). A plurality of radioactive sources and their beam channels are distributed in said source body, and the beams from said radioactive sources focus on the common focus point. Collimators (203) are located in the collimator body (201), and have the same distribution pattern as the radioactive sources. In the radial sectional planes, the radioactive sources (103) and their beam channels are located within a fan shaped area, the included angle of which is less than 90 DEG . In an axial sectional plane, the corresponding angle is preferably less than 60 DEG . <IMAGE></p> |
