| 摘要 |
A positioner useful in stereotactic radiation treatment of a patient by radiation from a radiation source from which a radiation beam is emitted along a beam axis, the positioner including a source adapter arm arranged to be attached to the radiation source such that the position of the source adapter arm is determined by the position of the radiation source, and a frame adapter arm pivotably attached to the source adapter arm about a pivot axis, the frame adapter arm defining a frame axis intersecting the pivot axis, the pivot axis and the frame axis being selected such that when the source adapter arm is attached to the radiation source, the pivot axis and the frame axis both intersect the beam axis. <IMAGE> |
