公开(公告)号：US5332908A

公开(公告)日：1994-07-26

申请号：US17459

申请日：1993-02-11

申请人： Georg A. Weidlich

发明人： Georg A. Weidlich

IPC分类号： A61N5/10 ,  G21K1/04 ,  G21K5/04

CPC分类号： G21K5/04 ,  A61N5/1042 ,  G21K1/04

摘要： A method for applying a radiation treatment with an arbitrary isodose profile is disclosed. The treatment apparatus has a radiation source which generates a radiation beam with an axis. The apparatus also includes a collimator having a plurality of independently movable plates disposed in the path of the radiation beam and oriented in a direction perpendicular to said beam axis. Each set has two movable plates. Control signals are generated. Two plates within a set of plates are actuated independently in orthogonal directions during the treatment, in response to the control signals, causing the beam to change in width. The intensity of the beam is changed as a function of the position of the plates to generate an arbitrary beam profile. Exemplary profiles which may be generated included rotationally symmetric parabolic profiles and flat profiles.

摘要翻译： 公开了一种用任意等剂量曲线进行放射治疗的方法。 处理装置具有产生具有轴的辐射束的辐射源。 该装置还包括准直器，该准直器具有设置在辐射束的路径中并沿垂直于所述光束轴线的方向定向的多个可独立移动的板。 每组有两个可动板。 产生控制信号。 响应于控制信号，使得光束在宽度上变化，在一组板内的两个板在处理期间在正交方向上独立地致动。 光束的强度根据板的位置而变化，以产生任意的光束轮廓。 可以产生的示例性轮廓包括旋转对称的抛物线轮廓和平坦轮廓。

公开(公告)号：US5216255A

公开(公告)日：1993-06-01

申请号：US860959

申请日：1992-03-31

申请人： Georg A. Weidlich

发明人： Georg A. Weidlich

IPC分类号： A61N5/10 ,  G21K1/04

CPC分类号： A61N5/1042 ,  G21K1/04

摘要： A system for applying radiation treatment under computer control is disclosed. The system has a radiation source, which generates a variable intensity radiation beam, and a collimator. The collimator has a plurality of movable plates disposed in the path of the radiation beam and is oriented in a direction perpendicular to the beam axis. The apparatus is capable of actuating the plates independently during the radiation treatment, in response to a first control signal. The beam changes in width when the plates are so actuated. The collimator is rotated in response to a second control signal. The intensity of the radiation beam may be varied as a function of the plate position. A total radiation dosage is applied during two intervals. The first interval precedes the collimator rotation, and the second interval follows the rotation.

摘要翻译： 公开了一种在计算机控制下进行辐射处理的系统。 该系统具有产生可变强度辐射束的辐射源和准直器。 准直器具有设置在辐射束的路径中的多个可动板，并且在垂直于光束轴线的方向上定向。 该装置能够响应于第一控制信号在辐射处理期间独立地致动板。 当板被致动时，光束的宽度变化。 准直仪响应于第二控制信号旋转。 辐射束的强度可以作为板位置的函数而变化。 在两个间隔期间施用总辐射剂量。 第一个间隔在准直器旋转之前，第二个间隔在旋转之后。