Contour collimator for radiotherapy
A radiotherapy, collimator technology, applied in radiotherapy, using diaphragm/collimator, treatment, etc., can solve the problems of low dynamic characteristics and movement speed, deviation from target position, inaccurate adjustment, etc., to simplify the mechanical Assembly, simplified control loop algorithm, effect of dead time reduction
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[0067] figure 1 is a perspective view of a profile collimator 10 according to the invention, the core of which is constituted by a guide module 12 . The guide module 12 includes a lower guide plate 14 , an upper guide plate 16 and two side walls 18 and 20 . Side walls 18, 20 connect the lower guide plate 14 and the upper guide plate 16 to each other. Thus, the guide module 12 generally comprises the shape of a rectangular frame. It goes without saying that the collimator 10 may comprise more guide modules 12 or the guide modules 12 may be divided into a plurality of rectangular frame elements. The guide module 12 may be covered at upper and lower sides by cover plates respectively including openings, which may be rectangular and provided at the center of the cover plates. The top surface of the lower guide plate 16 is provided with a plurality of lower guide grooves extending longitudinally of the guide module 12 and formed parallel to each other at equal transverse distanc...
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