Konturenkollimator für die Strahlentherapie

摘要

A contour collimator (1) has a plurality of plate-shaped diaphragm elements (101, 102, 103, ...) movably arranged with respect to each other in a guiding block (10) to form a contour diaphragm for a radiation beam (13) emitted by a radiation source (12) towards the collimator, and at least one drive for moving the diaphragm elements. A drive (111, 112, 113, ...) is associated with each diaphragm element (101, 102, 103, ...). The drives of a group of diaphragm elements are substantially adjacent. A driving transmission is arranged between each drive (111, 112, 113, ...) and the associated diaphragm element (101, 102, 103, ...).