Fast timing position sensitive detector
    41.
    发明授权
    Fast timing position sensitive detector 失效
    快速定时灵敏度检​​测器

    公开(公告)号:US5644128A

    公开(公告)日:1997-07-01

    申请号:US296312

    申请日:1994-08-25

    CPC classification number: H01J49/025 H01J37/244 H01J2237/24435

    Abstract: A position sensitive fast timing detector for determining time-of-flight mass analysis and position of atomic particles includes a channel plate assembly for detecting the impact of one or more atomic particles a transforming them into one or more electron clouds. The electron cloud then passes through an electron detector which includes a meandric delay line located in front of a back plate. A second meandric delay line may also be utilized, wherein the second delay line is orthogonal with the first delay line. A grid may be placed between the first and second meandric delay lines to reduce cross-talk.

    Abstract translation: 用于确定飞行时间质量分析和原子粒子的位置的位置敏感快速定时检测器包括通道板组件,用于检测一个或多个原子粒子的影响,将其转变成一个或多个电子云。 然后,电子云通过电子检测器,其包括位于背板前面的蜿蜒延迟线。 还可以利用第二个奇数延迟线,其中第二延迟线与第一延迟线正交。 网格可以放置在第一和第二奇数延迟线之间以减少串扰。

    Device for forming images of ionizing particles by means of a multi-wire
proportional chamber
    42.
    发明授权
    Device for forming images of ionizing particles by means of a multi-wire proportional chamber 失效
    用于通过多线比例室形成电离粒子的图像的装置

    公开(公告)号:US5596201A

    公开(公告)日:1997-01-21

    申请号:US208148

    申请日:1994-03-10

    Inventor: Georges Charpak

    CPC classification number: H01J47/062 G01T1/2935

    Abstract: A device for forming images of ionizing particles through single-dimensional electrophoresis provided with a multi-wire proportional chamber. The chamber filled with a gas is of asymmetric structure and is formed successively by an entry window for the particles, taken to a negative potential, a multi-wire anode electrode, taken to a potential positive with respect to a reference potential, and a cathode electrode which is placed in the vicinity of the anode electrode. The cathode electrode, which is taken to the reference potential, is formed by a network of parallel electrically conducting strips. Detection of the position of impact of the ionizing particle along the pitch of the network is performed by induction of a delayed electric pulse caused by an avalanche of the ionization electrons issuing from the ionizing particle in the region of the strip situated in line with the impact by the particle in the chamber, the reference time being that of the ionization electrons close to the wires.

    Abstract translation: 一种通过具有多线比例室的单维电泳形成电离粒子图像的装置。 填充有气体的室具有不对称结构,并且通过用于负电位的颗粒的入口窗口,相对于参考电位被取为电位的多线阳极电极和阴极 放置在阳极电极附近的电极。 取到参考电位的阴极由平行导电条的网络形成。 沿着网络的间距检测电离粒子的冲击位置是通过感应由电离粒子发出的离子化电子的雪崩引起的延迟电脉冲,该电离电子位于与受影响的条带对应的条带区域 通过室中的颗粒,参考时间是电离电子靠近导线的时间。

    Electrostatic deflector with generally cylindrical configuration
    43.
    发明授权
    Electrostatic deflector with generally cylindrical configuration 失效
    静电导流板,通常为圆柱形

    公开(公告)号:US5357107A

    公开(公告)日:1994-10-18

    申请号:US12537

    申请日:1993-02-02

    CPC classification number: H01J49/482

    Abstract: An electrostatic deflector for energy selection of a beam of charged particles has a plurality of main deflector plates arrayed in a generally cylindrical basic shape and to which electrostatic potentials are applied. The main deflector plates are shaped and the potentials are applied to generate a path of said beam from an input side of said deflector to an output side thereof by virtue of a deflecting field which is increasingly weakened to both sides of a central portion of the beam toward the main deflector plates relative to a field of ideal cylindrical shape, thereby causing second order angular aberration of the beam to substantially vanish. A pair of end deflector plates at opposite ends of the cylindrical basic shape have a repulsive potential with respect to the beam to effect focussing of the beam perpendicular to a dispersion plane of the deflector.

    Abstract translation: 用于对带电粒子束进行能量选择的静电偏转器具有排列成大致圆柱形的基本形状的多个主偏转板,并且施加静电电位。 主偏转板成形,并且施加电位以通过偏转场产生从所述偏转器的输入侧到其输出侧的所述光束的路径,该偏转场逐渐变弱到光束的中心部分的两侧 相对于理想的圆柱形状的场,朝向主偏转板,从而导致光束的二次角像差基本上消失。 在圆柱形基本形状的相对端处的一对末端偏转板相对于梁具有排斥势,以使垂直于偏转器的色散平面的光束聚焦。

    Ionization chamber dosimeter
    44.
    发明授权
    Ionization chamber dosimeter 失效
    电离室剂量计

    公开(公告)号:US5061216A

    公开(公告)日:1991-10-29

    申请号:US509121

    申请日:1990-04-16

    CPC classification number: H01J47/001

    Abstract: A method for fabricating an ion chamber dosimeter collecting array of the type utilizing plural discrete elements formed on a uniform collecting surface which includes forming a thin insulating layer over an aperture in a frame having surfaces, forming a predetermined pattern of through holes in the layer, plating both surfaces of the layer and simultaneously tilting and rotating the frame for uniform plate-through of the holes between surfaces. Aligned masking and patterned etching of the surfaces provides interconnects between the through holes and copper leads provided to external circuitry.

    Abstract translation: 一种利用形成在均匀收集表面上的多个分立元件来制造离子室剂量计收集阵列的方法,该方法包括在具有表面的框架中的孔上形成薄的绝缘层,在该层中形成预定图案的通孔, 对层的两个表面进行电镀,同时使框架倾斜和旋转,以使表面之间的孔均匀地穿透。 表面的对准掩模和图案蚀刻提供通孔和提供给外部电路的铜导线之间的互连。

    Mixed media for kinestatic charge detectors
    45.
    发明授权
    Mixed media for kinestatic charge detectors 失效
    用于运动电荷检测器的混合介质

    公开(公告)号:US4879469A

    公开(公告)日:1989-11-07

    申请号:US193527

    申请日:1988-05-13

    CPC classification number: G01T1/185 H01J47/005

    Abstract: A detection medium for a kinestatic charge detector is a mixture of gases, typically including at least one noble gas such as zenon or krypton. The medium can be pressurized to improve resolution and temperature can also be applied to the medium for improving resolution. Various additive or dopant gases can also be introduced to improve resolution.

    Abstract translation: 用于活性电荷检测器的检测介质是气体的混合物,通常包括至少一种惰性气体,例如天on或氪。 介质可以被加压以提高分辨率,也可以将温度应用于介质以提高分辨率。 还可以引入各种添加剂或掺杂气体以改善分辨率。

    Electric electron energy analyzer
    46.
    发明授权
    Electric electron energy analyzer 失效
    电子能量分析仪

    公开(公告)号:US4764673A

    公开(公告)日:1988-08-16

    申请号:US44227

    申请日:1987-04-30

    CPC classification number: H01J37/05 H01J49/48

    Abstract: In an electron spectrometer, electrons emanating from a source are collected and focused to a collimated stream by an electrostatic lens free of spherical aberration. The lens includes a pair of axially spaced concave grids approximating sections of concentric ellipsoids having a common focii and coaxial semi-major axes. The collimated electron stream is inducted into an electric radial cylindrical analyzer for focusing the electrons into radially dispersed lines on a position-sensitive detector with the radial dispersion being a function of their energies. The cylindrical analyzer section subtends an angle of approximately 63.5.degree.. The grid openings in the grids of the electrostatic collimating lens are elongated in a direction transverse to the stream of the electrons passing therethrough and parallel to the radial electric field lines at the entrance to the electric analyzer to reduce the dispersive effect of the grids.

    Abstract translation: 在电子光谱仪中,从源发出的电子被收集并通过没有球面像差的静电透镜聚焦到准直流。 透镜包括一对轴向间隔的凹形网格,近似具有共同焦点和同轴半长轴的同心椭圆体的部分。 准直电子流被引入电子径向圆柱形分析器中,用于将电子聚焦在位置敏感检测器上的径向分散线中,其中径向扩散是其能量的函数。 圆柱形分析器对角度约为63.5°。 静电准直透镜的栅格中的栅格开口在横穿电子流的方向上延伸,并且平行于电分析器入口处的径向电场线,以减小栅格的色散效应。

    Ionization-type smoke detector
    47.
    发明授权
    Ionization-type smoke detector 失效
    电离式烟雾探测器

    公开(公告)号:US4761557A

    公开(公告)日:1988-08-02

    申请号:US897617

    申请日:1986-08-18

    CPC classification number: G08B17/113

    Abstract: In order to provide an ionization-type smoke detector, wherein the radiation from a radioactive source mounted on the inner electrode disposed within the inner ionization chamber also reaches into the outer ionization chamber through a through-hole formed in the intermediate electrode, which is easy to assemble and which has a constitution to prevent scattering of the radioactive source even though inner and outer ionization chambers are provided with the insulation base board for supporting the inner and intermediate electrodes at a predetermined spacing is connected to the printed circuit board by a mounting rod, and the outer electrode surrounding the intermediate electrode and the insulation base board with smoke inlet openings is connected at its end periphery to the printed circuit board, the printed circuit board being connected to the base of the detector by connecting pins.

    Abstract translation: 为了提供一种电离式烟雾探测器,其中安装在设置在内部电离室内部的内部电极上的放射源的辐射也通过形成在中间电极中的通孔进入外部电离室,这是容易的 即使内外电离室设置有用于以预定间隔支撑内电极和中间电极的绝缘基板,通过安装杆将印刷电路板连接到组装并具有防止放射源散射的结构 ,并且包围中间电极的外部电极和具有烟雾入口的绝缘基板在其端部周边连接到印刷电路板,印刷电路板通过连接销连接到检测器的基座。

    Proportional counter for detecting surface contaminations
    48.
    发明授权
    Proportional counter for detecting surface contaminations 失效
    用于检测表面污染物的比例计数器

    公开(公告)号:US4707606A

    公开(公告)日:1987-11-17

    申请号:US658114

    申请日:1984-10-05

    Applicant: Manfred Keller

    Inventor: Manfred Keller

    CPC classification number: H01J47/06 H01J47/002

    Abstract: Proportional counters for the detection and measurement of radioactive surface contaminations are provided with at least two flat window faces enclosing an angle and being formed by a thin foil spread or stretched by a framework including thin rods arranged along the inner edges of contacting window faces, to which rods the foil may be adhered. A perforated lattice or grid cage serves in particular to protect the thin window against any contact, the cage provides for a spacing of about double rod thickness between the framework and the controlled surface. Preferred is a polygonal and in particular hexagonal lattice whose grid wires or strips do not lie in the main scanning direction. Particularly convenient for checking pipelines are, for example, cylindrical measuring probes comprising window foils extending over and perhaps adhered to a circularly arranged frame of thin rods.

    Abstract translation: 用于检测和测量放射性表面污染物的比例计数器设置有至少两个平坦的窗口面,其包围一角度,并且由薄片展开形成,薄的薄片由包括沿着接触窗面的内边缘布置的细棒的框架延伸或拉伸, 哪个棒可以粘附。 穿孔格栅或格栅笼特别用于保护薄窗不受任何接触,保持架在框架和受控表面之间提供约双重杆厚度的间隔。 优选的是多边形,特别是其网格线或条不位于主扫描方向的六边形格子。 检查管道特别方便的是例如圆柱形测量探针,其包括延伸并可能粘附到圆形的细棒框架上的窗口箔。

    Ionization chamber
    49.
    发明授权
    Ionization chamber 失效
    电离室

    公开(公告)号:US4695731A

    公开(公告)日:1987-09-22

    申请号:US762008

    申请日:1985-08-02

    Inventor: Keith J. Larkin

    CPC classification number: H01J47/02 H01J47/005

    Abstract: To enable an ionization chamber used for measuring the intensity of a beam of ionizing radiation, for example an electron beam produced by a linear accelerator and used for radiotherapy, both to give an output signal which is independent of ambient pressure and temperature and to present a low weight of scattering material per unit area to the beam, the chamber is of flexible construction so that the volume of gas in it adapts to ambient pressure and temperature, and such that the weight of gas in the active region between the electrodes per unit area remains substantially constant. Suitably, the electrodes are conductive layers on flexible plastics sheets, an outer annular portion of one sheet providing a flexible connection between two opposed chamber wall portions which remain substantially planar and parallel; the proportional change (.DELTA.V.sub.1 /V.sub.1) in a volume bounded by the opposed wall portions and including the active region equals the proportional change (.DELTA.V.sub.2 /V.sub.2) in the remainder (V.sub.2) of the internal volume.

    Abstract translation: 为了实现用于测量电离辐射束的强度的电离室,例如由线性加速器产生并用于放射治疗的电子束,可以给出独立于环境压力和温度的输出信号,并呈现 每单位面积的散射材料重量与梁的重量相差,室内结构柔软,使得其中的气体体积适应环境压力和温度,并使每单位面积电极之间的有源区气体重量 保持基本恒定。 适当地,电极是柔性塑料片上的导电层,一片的外环形部分提供两个相对的室壁部分之间的柔性连接,其保持基本平坦和平行; 由相对的壁部分限定并包括有源区域的体积中的比例变化(DELTA V1 / V1)等于内部体积的余数(V2)中的比例变化(DELTA V2 / V2)。

    Pressure vessel of an X-ray detector
    50.
    发明授权
    Pressure vessel of an X-ray detector 失效
    X射线探测器的压力容器

    公开(公告)号:US4622466A

    公开(公告)日:1986-11-11

    申请号:US649597

    申请日:1984-09-12

    Applicant: Hisaaki Tamura

    Inventor: Hisaaki Tamura

    CPC classification number: H01J47/002

    Abstract: A pressure vessel of an X-ray detector, in which the contamination and leakage of xenon gas contained in the detector is prevented. The pressure vessel of the invention comprises a container of a curved pillar shape with a window through which the X-ray passes. The container is made of a metal, and the window faces inward of the curvature of the container. A carbon fiber-reinforced plastic sheet is fixed to the inner wall of the periphery of the window to cover the window. An elastic insulation sheet is attached to the inside of the carbon fiber-reinforced plastic sheet so as to cover the window. A metal foil is attached to the inside of the elastic insulation sheet so as to cover the window.

    Abstract translation: X射线检测器的压力容器,其中防止了包含在检测器中的氙气体的污染和泄漏。 本发明的压力容器包括具有X射线通过的窗口的弯曲柱状容器。 容器由金属制成,窗口面向容器的曲率内侧。 碳纤维增强塑料片固定在窗户周边的内壁上以覆盖窗户。 在碳纤维增强塑料片的内部附着弹性绝缘片以覆盖窗户。 金属箔附着在弹性绝缘片的内部以覆盖窗户。

Patent Agency Ranking