公开(公告)号：US09775574B2

公开(公告)日：2017-10-03

申请号：US14615134

申请日：2015-02-05

申请人： Moxtek, Inc.

发明人： Vincent Floyd Jones ,  Daniel N. Paas

IPC分类号： H01J35/16 ,  H01J37/16 ,  H05G1/04 ,  H05G1/02 ,  G01N23/223 ,  G21F5/02 ,  G21F5/04 ,  G21F5/06 ,  A61B6/00 ,  A61B6/10 ,  G21F1/10 ,  H05G1/06 ,  G21F5/015 ,  H01J5/50 ,  H01J5/04 ,  H01J9/36 ,  H01J35/02

CPC分类号： H05G1/06 ,  A61B6/107 ,  A61B6/4405 ,  A61B6/4429 ,  A61B6/485 ,  A61B2560/0406 ,  A61B2560/0425 ,  A61B2560/0431 ,  A61B2560/0462 ,  G01N23/223 ,  G01N2223/076 ,  G01N2223/301 ,  G21F1/106 ,  G21F5/015 ,  G21F5/02 ,  G21F5/04 ,  G21F5/06 ,  H01J5/04 ,  H01J5/50 ,  H01J9/36 ,  H01J35/025 ,  H01J35/16 ,  H01J37/165 ,  H01J2235/16 ,  H01J2235/163 ,  H01J2235/165 ,  H01J2235/166 ,  H01J2237/0266 ,  H01J2237/16 ,  H05G1/04

摘要： A portable XRF analyzer includes a hand shield to substantially block x-rays from impinging on a hand of a user. The portable XRF analyzer includes a heat sink over an x-ray source and a heat sink over an x-ray detector. The heat sinks are separated from each other by a thermally insulative material.

公开(公告)号：US08586955B2

公开(公告)日：2013-11-19

申请号：US12888046

申请日：2010-09-22

申请人： Ko Khee Tay

发明人： Ko Khee Tay

IPC分类号： G21F5/00 ,  G21F5/02 ,  G21F5/04

CPC分类号： G21F3/00 ,  G01V5/0016

摘要： An apparatus for attenuating high energy radiation including an attenuation member for attenuating high energy radiation in a high energy radiation field emitted from a high energy radiation source towards a subject. A control unit is provided for selectively activating the attenuation member. A method for attenuating high energy radiation is also disclosed.

摘要翻译： 一种用于衰减高能量辐射的装置，包括用于衰减从高能量辐射源向被摄体发射的高能量辐射场中的高能量辐射的衰减构件。 提供控制单元以选择性地启动衰减构件。 还公开了一种用于衰减高能辐射的方法。

公开(公告)号：US5591983A

公开(公告)日：1997-01-07

申请号：US491322

申请日：1995-06-30

申请人： Jonathan Y. Yao

发明人： Jonathan Y. Yao

IPC分类号： G21K1/02 ,  A61B6/00 ,  A61N5/10 ,  G21F5/04 ,  G21K1/04 ,  G21K5/02 ,  G02B5/00 ,  H01J1/52

CPC分类号： G21K1/046 ,  A61N5/1045 ,  G21F5/04 ,  G21K1/04

摘要： A multiple layer multileaf collimator for shaping a radiation beam. The collimator comprises first and second layers of a plurality of elongated radiation blocking leaves. The leaves of each layer are arranged adjacent one another so as to form two opposed rows of adjacently positioned leaves and are movable in a longitudinal direction (Y) which is generally traverse to the direction of the beam so as to define a radiation beam shaping field between the opposed ends of the leaves. The layers are arranged one above another in the beam direction and offset in a lateral direction (X) generally transverse to the beam direction and orthogonal to the longitudinal direction (Y) so that spaces between adjacent leaves of the first and second layers are positioned over and under, respectively, leaves of the second and first layers, respectively.

摘要翻译： 一种用于成形辐射束的多层多叶准直器。 准直器包括多个细长的辐射阻挡叶片的第一和第二层。 每个层的叶片彼此相邻布置，以便形成两个相邻的相邻排的叶片，并且可沿纵向方向（Y）移动，该纵向方向（Y）通常横过波束的方向，以便限定辐射束成形场 在叶子的相对的两端之间。 这些层在波束方向上一个地布置在另一个上方，并且在横向方向（X）上偏移，并且垂直于纵向方向（Y），使得第一和第二层的相邻叶片之间的空间位于上方 分别为第二层和第一层的叶片。

公开(公告)号：US5422492A

公开(公告)日：1995-06-06

申请号：US202315

申请日：1994-02-28

申请人： Barry S. Lecik ,  Darryl L. Gordon

发明人： Barry S. Lecik ,  Darryl L. Gordon

IPC分类号： G21C17/104 ,  G21F5/04

CPC分类号： G21C17/104 ,  G21Y2002/501

摘要： A device for calibrating a criticality detector for a nuclear fuel manufacturing plant having a radiation source comprises a radiation protective holder for containing the radiation source. The holder is aligned with the criticality detector along an axis; and a measuring rod having a plurality of calibrations is connected to the criticality detector and positioned near the holder parallel with the axis. A nylon guide is connected to the holder and movably connected to the measuring rod for moving the holder and the radiation source along the axis for detection purposes while providing a calibration measurement.

摘要翻译： 用于校准具有辐射源的核燃料制造厂的临界检测器的装置包括用于容纳辐射源的辐射保护支架。 支架沿着轴线与临界检测器对准; 并且具有多个校准的测量杆连接到临界检测器并且定位在与轴平行的保持器附近。 尼龙引导件连接到保持器并且可移动地连接到测量杆，用于沿着轴线移动保持器和辐射源以进行检测，同时提供校准测量。

公开(公告)号：US4511801A

公开(公告)日：1985-04-16

申请号：US399501

申请日：1982-07-19

申请人： Edward J. Tatham ,  Richard Kravits ,  John C. Clymer ,  Carvel D. Hoffman

发明人： Edward J. Tatham ,  Richard Kravits ,  John C. Clymer ,  Carvel D. Hoffman

IPC分类号： G01N23/04 ,  A61B6/03 ,  G01N23/16 ,  G21F5/04 ,  G21K1/04 ,  G21K5/10 ,  G01T1/29

CPC分类号： G21F5/04 ,  G01N23/16 ,  G21K1/04 ,  G21K5/10

摘要： A scanning device for examining an object with gamma rays with shielding for protection from radiation and protection of the mechanism from heat by a cooling jacket formed by spaced plates around the object. The shielding is formed by a pair of shutter-halves forming a lead shutter with mechanism to move the shutter-halves toward and away from each other and one of the shutter-halves mounted on a rotating drum which also carries three gamma ray sources. Gamma ray detectors are mounted in a circle concentric and outside the circle of the sources.

摘要翻译： 一种扫描装置，用于利用具有屏蔽的伽马射线检查物体，以防止辐射，并通过由物体周围的间隔开的板形成的冷却护套来保护机构免受热。 屏蔽由一对形成具有机构的快门半部形成的快门半形成，以将快门半部彼此朝向和远离彼此移动，并且一个快门半部安装在也携带三个伽马射线源的旋转鼓上。 伽马射线探测器安装在圆周同心圆的外围。

公开(公告)号：US4419763A

公开(公告)日：1983-12-06

申请号：US269423

申请日：1981-06-01

申请人： Eric G. Hawman

发明人： Eric G. Hawman

IPC分类号： A61B6/02 ,  G01T1/164 ,  G21F5/04 ,  G21K1/02

CPC分类号： A61B6/483 ,  A61B6/4258 ,  G01T1/1642 ,  G21F5/04 ,  G21K1/025

摘要： A collimator is disclosed which has a stack of radiation opaque plates that is tilted to vary the angle of view of the scintillation crystal of a radiation detector with respect to a radiation source. The plates have hexagonal apertures that are aligned with corresponding apertures on adjacent plates to provide radiation transmitting channels. As the stack is tilted, the plates slide laterally over one another to change the slant of the channels.

摘要翻译： 公开了一种准直器，其具有一叠辐射不透明板，其倾斜以相对于辐射源改变辐射检测器的闪烁晶体的视角。 板具有与相邻板上的相应孔对准的六边形孔，以提供辐射透射通道。 当堆叠倾斜时，板彼此横向滑动以改变通道的倾斜。

公开(公告)号：US4277685A

公开(公告)日：1981-07-07

申请号：US914361

申请日：1978-06-12

申请人： John Covic ,  Glen Leininger ,  Roland W. Carlson

发明人： John Covic ,  Glen Leininger ,  Roland W. Carlson

IPC分类号： G03B42/02 ,  G03B41/16 ,  G21F5/04

CPC分类号： G03B42/02

摘要： In a rotating fan beam tomographic scanner there is included an adjustable collimator and shutter assembly. The assembly includes a fan angle collimation cylinder having a plurality of different length slots through which the beam may pass for adjusting the fan angle of the beam. It also includes a beam thickness cylinder having a plurality of slots of different widths for adjusting the thickness of the beam. Further, some of the slots have filter materials mounted therein so that the operator may select from a plurality of filters. Also disclosed is a servo motor system which allows the operator to select the desired fan angle, beam thickness and filter from a remote location. An additional feature is a failsafe shutter assembly which includes a spring biased shutter cylinder mounted in the collimation cylinders. The servo motor control circuit checks several system conditions before the shutter is rendered openable. Further, the circuit cuts off the radiation if the shutter fails to open or close properly. A still further feature is a reference radiation intensity monitor which includes a tuning-fork shaped light conducting element having a scintillation crystal mounted on each tine. The monitor is placed adjacent the collimator between it and the source with the pair of crystals to either side of the fan beam.

摘要翻译： 在旋转风扇光束断层扫描仪中，包括可调整的准直仪和快门组件。 组件包括具有多个不同长度的狭槽的扇形角准直圆柱体，光束可以通过该狭槽来调节光束的扇角。 它还包括具有不同宽度的多个狭槽的光束厚度圆柱体，用于调节光束的厚度。 此外，一些槽具有安装在其中的过滤材料，使得操作者可以从多个过滤器中进行选择。 还公开了一种伺服电动机系统，其允许操作者从远程位置选择所需的风扇角度，梁厚度和过滤器。 一个附加的特征是故障保护快门组件，其包括安装在准直气缸中的弹簧偏压快门柱。 伺服电机控制电路在快门可打开之前检查几个系统状况。 此外，如果快门未正确打开或关闭，则电路切断辐射。 另外的特征是参考辐射强度监视器，其包括具有安装在每个齿上的闪烁晶体的音叉形光导元件。 将监视器放置在其与源之间的准直器附近，并且将一对晶体放置在风扇光束的任一侧。

公开(公告)号：US4253029A

公开(公告)日：1981-02-24

申请号：US41730

申请日：1979-05-23

申请人： Martin P. Lepselter ,  Hyman J. Levinstein ,  Dan Maydan

发明人： Martin P. Lepselter ,  Hyman J. Levinstein ,  Dan Maydan

IPC分类号： G03F1/22 ,  H01L21/30 ,  B01J17/00 ,  G02B5/00 ,  G21F5/04

CPC分类号： G03F1/22 ,  Y10S430/167

摘要： A mask substrate for use in an x-ray lithographic system comprises a boron nitride member (32, FIG. 2) coated with a polyimide layer (20) whose thickness is approximately the same as that of the boron nitride member. The substrate is mechanically strong and both optically and x-ray transparent. Mask patterns formed on the substrate are characterized by low distortion and a low defect density.

摘要翻译： 用于x射线光刻系统的掩模基板包括涂覆有厚度与氮化硼构件的厚度大致相同的聚酰亚胺层（20）的氮化硼构件（32，图2）。 基材机械性强，光学和X射线透明。 形成在基板上的掩模图案的特征在于低失真和低缺陷密度。

公开(公告)号：US4099063A

公开(公告)日：1978-07-04

申请号：US740572

申请日：1976-11-10

申请人： Thomas Pury ,  Marvin L. Sivertsen

发明人： Thomas Pury ,  Marvin L. Sivertsen

IPC分类号： G03B42/02 ,  G21K1/02 ,  G21F5/04

CPC分类号： G21K1/02 ,  G03B42/025

摘要： In a spot film device, the inner and main carriages for a film cassette are positioned with reversible servo motors. An x-ray grid is mounted on the bottom of the main carriage and a cross grid is mounted on tracks beneath the carriage such that the cross grid may be used or not used for fluoroscopy and both grids may be used for radiography. Field defining masks are also mounted for translating selectively with the carriage. Individual reversible servo motor drives are used to advance and retract the masks and cross grid. Means are provided for absorbing shock or negating drive system momentum when the masks or grid are stopped abruptly. Reduced power is applied to the mask and grid drive motors when the masks and grid reach their stops for holding them against their stops. A motor driven palpator cone, having unique driving and locking means is provided. Means are provided for loading and unloading cassettes from either the front or rear of the spot film device.

公开(公告)号：US4034228A

公开(公告)日：1977-07-05

申请号：US617579

申请日：1975-09-29

申请人： Alfred Arauner

发明人： Alfred Arauner

IPC分类号： A61N5/10 ,  G21K1/04 ,  G21F5/04

CPC分类号： A61N5/10 ,  G21K1/04

摘要： A tubus for defining the boundary of a beam of penetrating rays, which is preferably adapted for use in the radiation therapy. In a tubus of the above-mentioned type, the tube wall is thereby constructed of a plurality of over-lapping wall elements directed in parallel with the edge radiation of the radiation cone encompassed by the tubus, and suspended on the tubus housing so as to be displaceable to the direction of the edge radiation. That type of construction of the tubus facilitates the cross-section and also the surface of the focused radiation cone to be varied. Thereby it becomes possible to correlate the radiation field in a stepless manner by means of one and the same tubus over a wide range to almost every form and size of the illness spread.

摘要翻译： 一种用于限定穿透射线束的边界的小管，其优选适于在放射治疗中使用。 在上述类型的管子中，管壁由多个与由管子包围的辐射锥的边缘辐射平行定向的叠层壁元件构成，并且悬挂在管状壳体上，以便 可沿着边缘辐射的方向移动。 这种类型的管状结构有助于横截面以及聚焦辐射锥体的表面变化。 因此，可以通过在大范围内的同一个管道以无级方式将辐射场相关联，几乎每种形式和大小的疾病蔓延。