公开(公告)号：US5166531A

公开(公告)日：1992-11-24

申请号：US740164

申请日：1991-08-05

Applicant: Calvin J. Huntzinger

Inventor： Calvin J. Huntzinger

IPC: A61N5/10 ,  G21K1/04

CPC classification number: A61N5/1042 ,  A61N5/1036 ,  A61N5/1045 ,  G21K1/04 ,  G21K1/046

Abstract: A multileaf collimator for use in therapeutic radiology treatment systems for producing irregular shaped radiation fields in order to shield normal tissue or critical organs. A multileaf collimator following the present invention includes leaves designed such that the collimator exhibits penumbra which is minimized and generally uniform for positions that are equidistant from the central axis of the radiation field. The shape of each leaf end includes an asymmetric central portion and a flat portion on either side of the central portion. The central portion is designed such that geometric penumbra and transmission penumbra are equalized. The flat portions on either side of the central portion are coincident with a tangent drawn from the edge of the radiation source to a reference plane when the leaf is in the fully retracted or fully extended positions.

Abstract translation: 一种用于治疗性放射治疗系统的多叶准直器，用于产生不规则形状的辐射场，以屏蔽正常组织或关键器官。 根据本发明的多叶准直器包括被设计成使得准直器表现出最小化并且对于与辐射场的中心轴线等距的位置大致均匀的半影的叶。 每个叶片端部的形状包括不对称的中心部分和位于中心部分两侧的平坦部分。 中心部分被设计成使得几何半影和透射半暗带相等。 当叶片处于完全缩回或完全伸出的位置时，中心部分两侧的平坦部分与从辐射源的边缘到参考平面的切线重合。

公开(公告)号：US08890100B2

公开(公告)日：2014-11-18

申请号：US13585838

申请日：2012-08-15

Applicant: Calvin J. Huntzinger ,  David K. Jensen ,  William A. Strachan

Inventor： Calvin J. Huntzinger ,  David K. Jensen ,  William A. Strachan

IPC: A61N5/10 ,  G21K1/02

CPC classification number: G21K1/02 ,  A61N2005/1095 ,  G21K1/10

Abstract: A beam filter positioning device includes a first and a second axes operable to move a body supporting one or more collimators, one or more photon flattening filters, one or more electron foils, and field light mirror etc. The collimators may be configured to collimate radiation to define a treatment beam suitable for radiosurgery. A controller is programmed to control the servo motor of the first and second axes to accurately position the beam filters. Radiation apparatuses and systems incorporating the beam filter positioning device or assembly are also provided.

Abstract translation: 束过滤器定位装置包括第一和第二轴，其可操作以移动支撑一个或多个准直器的主体，一个或多个光子平坦化滤光器，一个或多个电子箔和场光镜等。准直器可以被配置成准直辐射 以定义适合放射外科的治疗束。 控制器被编程为控制第一和第二轴的伺服电动机以精确地定位束过滤器。 还提供了包括光束过滤器定位装置或组件的辐射装置和系统。

公开(公告)号：US20140048727A1

公开(公告)日：2014-02-20

申请号：US13585838

申请日：2012-08-15

Applicant: Calvin J. Huntzinger ,  David K. Jensen ,  William A. Strachan

Inventor： Calvin J. Huntzinger ,  David K. Jensen ,  William A. Strachan

IPC: G21K5/00 ,  G21K1/02

CPC classification number: G21K1/02 ,  A61N2005/1095 ,  G21K1/10

Abstract: A beam filter positioning device includes a first and a second axes operable to move a body supporting one or more collimators, one or more photon flattening filters, one or more electron foils, and field light mirror etc. The collimators may be configured to collimate radiation to define a treatment beam suitable for radiosurgery. A controller is programmed to control the servo motor of the first and second axes to accurately position the beam filters. Radiation apparatuses and systems incorporating the beam filter positioning device or assembly are also provided.

Abstract translation: 束过滤器定位装置包括第一和第二轴，其可操作以移动支撑一个或多个准直器的主体，一个或多个光子平坦化滤光器，一个或多个电子箔和场光镜等。准直器可以被配置成准直辐射 以定义适合放射外科的治疗束。 控制器被编程为控制第一和第二轴的伺服电动机以精确地定位束过滤器。 还提供了包括光束过滤器定位装置或组件的辐射装置和系统。

公开(公告)号：US4952814A

公开(公告)日：1990-08-28

申请号：US366000

申请日：1989-06-14

Applicant: Calvin J. Huntzinger

Inventor： Calvin J. Huntzinger

IPC: G21K1/10 ,  H01J33/04 ,  H05H9/00

CPC classification number: H05H9/00 ,  G21K1/10 ,  H01J33/04

Abstract: A microwave electron accelerator has a very limited range over which pulse beam current can be adjusted without destabilizing the operation of the machine. Therefore, means must be devised to reduce current without seriously reducing energy, or producing unwanted x-rays. One means includes spreading the beam in a scattering foil and subsequently absorbing the outer portion with a blocking wall. In order to make the means adjustable the foil thickness, the size of a passing aperture in the blocking wall or the position of the blocking wall can be adjusted.

Abstract translation: 微波电子加速器具有非常有限的范围，通过该范围可以调节脉冲束电流，而不会使机器的操作不稳定。 因此，必须设计出减少电流的手段，而不会严重地减少能量或产生不需要的X射线。 一种手段包括将光束分散在散射箔中，随后用阻挡壁吸收外部部分。 为了使装置可调整箔厚度，可以调节阻挡壁中的通过孔的尺寸或阻挡壁的位置。