公开(公告)号：US5138647A

公开(公告)日：1992-08-11

申请号：US562184

申请日：1990-08-03

申请人： John Nguyen ,  Cedric X. Yu

发明人： John Nguyen ,  Cedric X. Yu

IPC分类号： A61B6/00 ,  A61B6/02 ,  A61N5/10 ,  G03B42/02

CPC分类号： A61B6/4441 ,  A61B6/4225 ,  A61B6/4233 ,  A61N5/1049 ,  G03B42/023 ,  A61N2005/1054

摘要： A radiation treatment apparatus is provided which has an extendable imaging device. The radiation treatment apparatus comprises a stand which supports a gantry in a rotable manner. The gantry has a treatment head for emitting a radiation beam towards an object. The extendable imaging device is coupled to the gantry opposite to the treatment head in the trajectory of the radiation beam at a point past the object. The imaging device includes an holding means which is extendable from the gantry one end of which is arranged at the gantry and at the other end of which a detector head is coupled. The detector head comprises an image converting means which in its operating position is essentially perpendicular to the radiation beam and which converts an image represented by the radiation beam into a visible image. It also comprises a reflector coupled with the image converting means for reflecting the visible image into a light channel formed by the holding means and to a video camera. In a preferred embodiment of the invention the image converting means is collapsible and the reflector is formed as a mirror and is foldable towards the image converting means.

摘要翻译： 提供一种具有可延伸的成像装置的放射治疗装置。 辐射处理装置包括以可旋转的方式支撑台架的支架。 台架具有用于朝向物体发射辐射束的处理头。 可延伸成像装置在穿过物体的点处在辐射束的轨迹中耦合到与治疗头相对的台架。 成像装置包括保持装置，该保持装置可从机架延伸，其一端设置在机架上，另一端连接有检测器头。 检测器头包括图像转换装置，其在其操作位置基本上垂直于辐射束并且将由辐射束表示的图像转换成可见图像。 它还包括与图像转换装置耦合的反射器，用于将可见图像反射成由保持装置形成的光通道和摄像机。 在本发明的优选实施例中，图像转换装置是可折叠的并且反射器形成为反射镜并且可朝向图像转换装置折叠。

公开(公告)号：US5010562A

公开(公告)日：1991-04-23

申请号：US401355

申请日：1989-08-31

申请人： Francisco Hernandez ,  Jerry Chamberlain

发明人： Francisco Hernandez ,  Jerry Chamberlain

IPC分类号： G21K5/00 ,  A61N5/10 ,  G21K5/02 ,  G21K5/04 ,  G21K5/08 ,  H05G1/00 ,  H05H7/00

CPC分类号： H05H7/00

摘要： The generation of excessive electron radiation or X-ray radiation is prevented in an apparatus which comprises an accelerator means for generating and accelerating electrons. These electrons form an electron beam which has a predetermined low intensity level for the generation of electron radiation or a predetermined high intensity level for the generation of X-ray radiation. In case of generating electron radiation a scattering foil or a target, respectively are arranged in the trajectory of the electron beam. The foil and the target are movably arranged on a support means. Detecting means operable by this support means sense the position of the foil and the target relative to the trajectory of said electron beam and inhibiting means prevent the generation of an electron beam having an intensity level which exceeds the predetermined low intensity level if the target is not positioned and/or which exceeds the predetermined high intensity level if the target is positioned in the trajectory of the electron beam.

摘要翻译： 在包括用于产生和加速电子的加速器装置的装置中，防止产生过多的电子辐射或X射线辐射。 这些电子形成电子束，其具有用于产生电子辐射的预定低强度水平或用于产生X射线辐射的预定高强度水平。 在产生电子辐射的情况下，散射箔或靶分别布置在电子束的轨迹中。 箔和靶可移动地布置在支撑装置上。 通过该支撑装置可操作的检测装置可以检测箔和靶相对于所述电子束的轨迹的位置，并且如果目标不是，抑制装置防止产生具有超过预定的低强度水平的强度水平的电子束 定位和/或超过预定的高强度水平，如果目标位于电子束的轨迹中。

公开(公告)号：US4845371A

公开(公告)日：1989-07-04

申请号：US174575

申请日：1988-03-29

申请人： Volker Stieber

发明人： Volker Stieber

IPC分类号： A61N5/10 ,  G21K1/02 ,  G21K1/10

CPC分类号： G21K1/02 ,  G21K1/10

摘要： An apparatus for generating and transporting a charged particle beam. The apparatus has a source which generates the charged particle beam at two current levels, and a magnet system for bending the beam. Particles of different energies are bent along different paths, whereby at a specific height within the magnet system the radial displacement from the beam axis is a monotone function of the difference between the energy and the nominal energy. At this height there is provided an energy selection filter having at least one bimetallic element. This element projects into the beam and, thus, intercepts beam particles; it is designed such that its interception distance decreases with increasing beam current. As a result, the energy range of particles passing the filter is broader at the higher current level broader than at the lower current level.

摘要翻译： 一种用于产生和传送带电粒子束的装置。 该装置具有产生两个电流水平的带电粒子束的源和用于弯曲束的磁体系统。 不同能量的颗粒沿着不同的路径弯曲，由此在磁体系统内的特定高度处，来自梁轴的径向位移是能量和标称能量之间的差异的单调函数。 在该高度处，提供了具有至少一个双金属元件的能量选择滤光器。 该元件投射到光束中，因此拦截光束粒子; 它被设计成使得其截取距离随着束电流的增加而减小。 结果，通过过滤器的颗粒的能量范围在比当前水平较低的较高电流水平下更宽。

公开(公告)号：US4427890A

公开(公告)日：1984-01-24

申请号：US289137

申请日：1981-08-03

申请人： Leonhard Taumann

发明人： Leonhard Taumann

IPC分类号： H01J47/02

CPC分类号： H01J47/02

摘要： The chamber contains a first and a second measuring electrode and a third electrode. The first measuring electrode is essentially a first flat ring portion. The second measuring electrode comprises an inner circular area to the periphery of which a second flat ring portion adjoins in an electrically conducting manner. The first and the second measuring electrodes are arranged in a first plane. The first and the second ring portion are combined approximately 360.degree.. The third electrode is arranged in a second plane parallel to and spaced from the first plane. When ionizing radiation (X-rays, electrons) enters the space between the first and second measuring electrodes on the one side and the third electrode on the other side, electrical signals will be derived from said respective first and second electrode.

摘要翻译： 该室包含第一和第二测量电极和第三电极。 第一测量电极基本上是第一平环部分。 第二测量电极包括其周边的内圆形区域，其中第二平环部分以导电方式邻接。 第一和第二测量电极被布置在第一平面中。 第一和第二环部分约合360度。 第三电极布置在与第一平面平行并与第一平面间隔开的第二平面中。 当电离辐射（X射线，电子）进入第一和第二测量电极之间的另一侧的第一和第二测量电极之间的空间时，将从所述相应的第一和第二电极导出电信号。

公开(公告)号：US4324980A

公开(公告)日：1982-04-13

申请号：US170607

申请日：1980-07-21

申请人： Edgar B. Symmons

发明人： Edgar B. Symmons

IPC分类号： H01J33/04 ,  H05H7/22 ,  G02B5/00 ,  H01J7/26

CPC分类号： H05H7/22 ,  H01J33/04

摘要： The electron exit window assembly contains a metal cover plate, a titanium insert piece and a titanium exit window. The cover plate covers the interior of the last cavity of the accelerator. It contains an insert opening into which is inserted the insert piece in a vacuum tight manner. The insert piece in turn contains a hole which is covered by the exit window. The cover plate preferably is made of stainless steel, and the insert piece is preferably brazed into the insert opening of the cover plate.

摘要翻译： 电子出射窗组件包括金属盖板，钛插件和钛出口窗。 盖板覆盖加速器的最后一个腔的内部。 它包含一个插入孔，插入片以真空密封的方式插入其中。 插入件又包含被出口窗口覆盖的孔。 盖板优选地由不锈钢制成，并且插入件优选地钎焊到盖板的插入开口中。

公开(公告)号：US4314158A

公开(公告)日：1982-02-02

申请号：US136359

申请日：1980-04-01

申请人： Donald R. Lucido

发明人： Donald R. Lucido

IPC分类号： A61N5/10 ,  G01Q70/10 ,  G01Q70/18 ,  G21K1/00 ,  H05H7/22 ,  G02B5/00 ,  H01J29/46

CPC分类号： A61N5/10 ,  G21K1/00 ,  H05H7/22 ,  A61N2005/1089 ,  Y10S285/921

摘要： The electron applicator incorporates a stationary support tube and an insert tube. The support tube and the insert tube each have a first end portion and a second end portion. The first end portion of the insert tube slideably extends into the second end portion of the support tube. Electrons of high energy are transmitted through the assembly of both tubes. The surface of the insert tube is tapered inwardly toward the end thereof in the travelling direction of the high energy electrons. A device is provided for preventing the insert tube from sliding out of the support tube. A first engaging device engages the insert tube in a first working position. This device is such that upon a predetermined axial force which may inadvertently be exercised by a patient under treatment, the insert tube will slide into the support tube.An adapter for small field or cavetory treatment may be connected to the output end of the insert tube. To compensate for the additional length of the tube assembly associated with such an adapter, the insert tube is moved into the support tube by a distance equal to the effective length increase and held in this second position by a second engaging device which can be similar to the first engaging device.

摘要翻译： 电子施加器包括固定支撑管和插入管。 支撑管和插入管各自具有第一端部和第二端部。 插入管的第一端部可滑动地延伸到支撑管的第二端部。 高能量的电子通过两个管的组件传输。 插入管的表面在高能电子的行进方向上朝向其端部向内逐渐变细。 提供一种用于防止插入管从支撑管滑出的装置。 第一接合装置在第一工作位置接合插入管。 该装置使得在预定的轴向力可能无意中被被治疗的患者行使时，插入管将滑入支撑管中。 用于小场或牙科治疗的适配器可以连接到插管的输出端。 为了补偿与这种适配器相关联的管组件的附加长度，插入管被移动到支撑管中等于有效长度增加的距离，并且通过第二接合装置保持在该第二位置，该第二接合装置可以类似于 第一接合装置。

公开(公告)号：US4300055A

公开(公告)日：1981-11-10

申请号：US152349

申请日：1980-05-22

申请人： Leonhard Taumann

发明人： Leonhard Taumann

IPC分类号： H01J35/00 ,  G21K1/10 ,  G21K3/00 ,  G21K5/02 ,  G21K5/04 ,  G21K5/08 ,  H01J35/08 ,  H05H7/00 ,  H01J35/02 ,  H05H7/12

CPC分类号： H01J35/00 ,  G21K1/10

摘要： The invention relates to an electron accelerator including an evacuated acceleration tube, a target exposed to the electron beam, an electron absorber following the target in beam direction, a collimator and a compensation body arranged therein centered on the axis of symmetry thereof. In such electron accelerators, used in radiotherapy, the soft radiation component is to be suppressed as much as possible. To this end the invention provides a filter plate made of heavy metal beyond the electron absorber, while the compensation body is made of a material of comparatively low atomic number. The filter plate may be inserted between the electron absorber and the compensation body. The target may be provided on the side of the electron absorber facing the acceleration tube.

摘要翻译： 本发明涉及一种电子加速器，其包括抽真空的加速管，暴露于电子束的靶，沿射束方向的靶之后的电子吸收体，准直器和以其对称轴为中心的补偿体。 在放射治疗中使用的这种电子加速器中，尽可能地抑制软辐射成分。 为此，本发明提供了一种由超过电子吸收体的重金属制成的过滤板，而补偿体由原子序数较低的材料制成。 滤板可插入电子吸收体和补偿体之间。 靶可以设置在面对加速管的电子吸收体侧。

公开(公告)号：US2667370A

公开(公告)日：1954-01-26

申请号：US13635949

申请日：1949-12-31

申请人： STANDARD OIL DEV CO

发明人： CLARKE JAMES S

IPC分类号： F16L51/03

CPC分类号： F16L51/03

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：US5148032A

公开(公告)日：1992-09-15

申请号：US723000

申请日：1991-06-28

申请人： Fancisco Hernandez

发明人： Fancisco Hernandez

IPC分类号： A61N5/10 ,  G21K1/04 ,  H05G1/36

CPC分类号： G21K1/04 ,  A61N5/10 ,  H05G1/36 ,  A61N2005/1095

摘要： In a radiation emitting device, particularly in a radiation therapy device, isodose curves are adjusted both by a moveable plate that is controlled during irradiation and by varying the dose rate of the radiation beam during irradiation. By superimposing the effects of moving the plate and varying the dose rate of the radiation beam, it is possible to vary the isodose curve in the object of irradiation, so that a wide range of variation in the possible isodose curves is obtained. If the plate is moved at a constant speed, e.g. various wedge-shaped isodose curves can be easily achieved.

摘要翻译： 在辐射发射装置中，特别是在放射治疗装置中，等剂量曲线通过在照射期间受控制的可移动板和通过改变照射期间辐射束的剂量率来调节。 通过叠加移动板和改变辐射束的剂量率的效果，可以改变照射对象中的等剂量曲线，从而获得可能的等剂量曲线的宽范围的变化。 如果板以恒定的速度移动，例如 可以容易地实现各种楔形等剂量曲线。