Patent ID: 6278766
Filing Date: 2001-08-21
Classification: G21K

Abstract:
A collimator system for a treatment planning machine which delivers a beam comprising:a. a collimator which defines an aperture for a beam, said aperture being positionally fixed with respect to said beam;b. at least one collimator jaw that can be moved into the projection of said aperture with respect to said beam so as to eclipse a portion of said beam before it enters said aperture;whereby the combined beam aperture of said collimator and said collimator jaw deviates from said aperture by the degree that said at least one collimator jaw intersects said projection of said aperture with respect to said beam; andc. a conformed treatment planning system in cooperation with said collimator and said at least one collimator jaw to configure said collimator and said at least one collimator jaw with respect to a target volume based on input data.