Two-dimensional weak radiation detector with a detection means based on orthogonal modulation
    41.
    发明授权
    Two-dimensional weak radiation detector with a detection means based on orthogonal modulation 有权
    具有基于正交调制的检测手段的二维弱辐射检测器

    公开(公告)号:US07326900B2

    公开(公告)日:2008-02-05

    申请号:US10533469

    申请日:2002-11-18

    Abstract: A weak light detector (40) which can detect two-dimensional weak radiation at a high speed with high precision. The fluorescence from the DNA chip (46) is incident on a detection part (56) of a detection unit (52). The detection unit (56) has a detection module with a number of detection transistors being placed to correspond to cells of the DNA chip (46). The detection part (56) performs photoelectric conversion of the incident fluorescence (photon) to emit electrons, and amplifies the electrons to make them incident on the detection module. The detection transistors are switched based the Hadamard matrix to operate. A data processing unit (54) reads an output signal of the detection part (56), then performs Hadamard inversion, and determines the detection transistor which outputs the signal.

    Abstract translation: 弱光检测器(40)可高精度检测二维弱辐射。 来自DNA芯片(46)的荧光入射到检测单元(52)的检测部分(56)上。 检测单元(56)具有检测模块,多个检测晶体管被放置成对应于DNA芯片(46)的单元。 检测部(56)进行入射荧光(光子)的光电转换,发射电子,放大电子,使其入射到检测模块上。 检测晶体管基于Hadamard矩阵进行切换操作。 数据处理单元(54)读取检测部分(56)的输出信号,然后执行哈达玛反转,并确定输出该信号的检测晶体管。

    Photodetector using photomultiplier and gain control method
    42.
    发明授权
    Photodetector using photomultiplier and gain control method 有权
    光电检测器采用光电倍增管和增益控制方式

    公开(公告)号:US07323674B2

    公开(公告)日:2008-01-29

    申请号:US11506204

    申请日:2006-08-18

    CPC classification number: H01J43/22 H01J40/14 H01J43/045

    Abstract: The present invention relates to a photodetector that has a structure capable of realizing a wide range gain adjustment for each of electron multiplier channels respectively assigned to a plurality of light incidence regions of a multi-anode multiplier. The photodetector comprises a multi-anode photomultiplier, and a bleeder circuit unit. The multi-anode multiplier has a dynode unit constituted by N (an integer or no less than 3) dynode plates, and n-th (an integer of no less then 2) dynode plate is constituted by a plurality of control plates respectively corresponding to the multiplier channels. The bleeder circuit unit has a primary section setting each potential of a first to (n−1)-th and (n+1)-th to N-th dynode plates, and a secondary section for individually setting a potential of each control plate at any potential within the range wider than a potential difference between the (n−1)-th and (n+1) dynode plates. By expanding the potential setting range for the control plates rather than the potential difference between the dynode plates adjacent to the n-th dynode plate, the gain of each electron multiplier channel can be controlled by two digits or more.

    Abstract translation: 本发明涉及一种具有能够实现对分别分配给多阳极倍增器的多个入射区域的每个电子倍增器通道的宽范围增益调整的结构的光电检测器。 光电检测器包括多阳极光电倍增管和泄放电路单元。 多阳极倍增器具有由N(整数或不小于3)倍增极板构成的倍增电极单元,并且第n(不小于2的整数)倍增极板由分别对应于 乘数通道。 泄放电路单元具有设定第一至第(n-1)和第(n + 1)至第N倍增电极板的每个电位的主要部分,以及用于单独设置每个控制板的电位的次级部分 在比第(n-1)和(n + 1)倍增极板之间的电位差宽的范围内的任何电位。 通过扩大控制板的电位设置范围,而不是与第n倍增极板相邻的倍增极板之间的电位差,每个电子倍增器通道的增益可以被控制在两位以上。

    Two-dimensional weak radiation detector
    43.
    发明申请
    Two-dimensional weak radiation detector 有权
    二维弱辐射探测器

    公开(公告)号:US20060043307A1

    公开(公告)日:2006-03-02

    申请号:US10533469

    申请日:2002-11-18

    Abstract: A weak light detector (40) which can detect two-dimensional weak radiation at a high speed with high precision. The fluorescence from the DNA chip (46) is incident on a detection part (56) of a detection unit (52). The detection unit (56) has a detection module with a number of detection transistors being placed to correspond to cells of the DNA chip (46). The detection part (56) performs photoelectric conversion of the incident fluorescence (photon) to emit electrons, and amplifies the electrons to make them incident on the detection module. The detection transistors are switched based the Hadamard matrix to operate. A data processing unit (54) reads an output signal of the detection part (56), then performs Hadamard inversion, and determines the detection transistor which outputs the signal.

    Abstract translation: 弱光检测器(40)可高精度检测二维弱辐射。 来自DNA芯片(46)的荧光入射到检测单元(52)的检测部分(56)上。 检测单元(56)具有检测模块,多个检测晶体管被放置成对应于DNA芯片(46)的单元。 检测部(56)进行入射荧光(光子)的光电转换,发射电子,放大电子,使其入射到检测模块上。 检测晶体管基于Hadamard矩阵进行切换操作。 数据处理单元(54)读取检测部分(56)的输出信号,然后执行哈达玛反转,并确定输出该信号的检测晶体管。

    Electron-multiplier and photo-multiplier having dynodes with partitioning parts
    44.
    发明授权
    Electron-multiplier and photo-multiplier having dynodes with partitioning parts 有权
    具有倍增极的电子倍增器和光电倍增器具有分隔部分

    公开(公告)号:US06998778B2

    公开(公告)日:2006-02-14

    申请号:US11007243

    申请日:2004-12-09

    CPC classification number: H01J31/507 H01J43/045 H01J43/22

    Abstract: A dynode (8) constituting an electron multiplier or a photomultiplier is provided with eight rows of channels (15) each defined by an outer frame (16) and a partitioning part (17) of the dynode (8). In each channel (15), a plurality of electron multiplying holes (14) are arranged. In specified positions of the outer frame (16) and the partitioning part (17) of the dynode (8), glass receiving parts (21) wider than the outer frame (16) and the partitioning part (17) are provided integrally with the dynode (8). Glass parts (22) are bonded to all the glass receiving parts (21). The glass parts (22) are bonded by applying glass to the glass receiving parts (21) and hardening the glass and each have a generally dome-like convex shape. Each dynode (8) is formed after the dome-like glass part (22) is bonded to the glass receiving part (21).

    Abstract translation: 构成电子倍增器或光电倍增管的倍增电极(8)设置有由排列(8)的外框架(16)和分隔部分(17)限定的8行通道(15)。 在每个通道(15)中,布置有多个电子倍增孔(14)。 在倍增极(8)的外框架(16)和分隔部分(17)的指定位置,与外框架(16)和分隔部分(17)相比较宽的玻璃容纳部件(21)与 倍增极(8)。 玻璃部件(22)与所有玻璃接收部件(21)接合。 玻璃部分(22)通过将玻璃施加到玻璃接收部分(21)并使玻璃硬化并且各自具有大致圆顶状的凸起形状而接合。 在圆顶状玻璃部件22接合到玻璃接收部件21之后形成多个倍增极8。

    Electron-multiplier and photo-multiplier having dynodes with partitioning parts
    45.
    发明申请
    Electron-multiplier and photo-multiplier having dynodes with partitioning parts 有权
    具有倍增极的电子倍增器和光电倍增器具有分隔部分

    公开(公告)号:US20050110379A1

    公开(公告)日:2005-05-26

    申请号:US11007243

    申请日:2004-12-09

    CPC classification number: H01J31/507 H01J43/045 H01J43/22

    Abstract: A dynode (8) constituting an electron multiplier or a photomultiplier is provided with eight rows of channels (15) each defined by an outer frame (16) and a partitioning part (17) of the dynode (8). In each channel (15), a plurality of electron multiplying holes (14) are arranged. In specified positions of the outer frame (16) and the partitioning part (17) of the dynode (8), glass receiving parts (21) wider than the outer frame (16) and the partitioning part (17) are provided integrally with the dynode (8). Glass parts (22) are bonded to all the glass receiving parts (21). The glass parts (22) are bonded by applying glass to the glass receiving parts (21) and hardening the glass and each have a generally dome-like convex shape. Each dynode (8) is formed after the dome-like glass part (22) is bonded to the glass receiving part (21).

    Abstract translation: 构成电子倍增器或光电倍增管的倍增电极(8)设置有由排列(8)的外框架(16)和分隔部分(17)限定的8行通道(15)。 在每个通道(15)中,布置有多个电子倍增孔(14)。 在倍增极(8)的外框架(16)和分隔部分(17)的指定位置,与外框架(16)和分隔部分(17)相比较宽的玻璃容纳部件(21)与 倍增极(8)。 玻璃部件(22)与所有玻璃接收部件(21)接合。 玻璃部分(22)通过将玻璃施加到玻璃接收部分(21)并使玻璃硬化并且各自具有大致圆顶状的凸起形状而接合。 在圆顶状玻璃部件22接合到玻璃接收部件21之后形成多个倍增极8。

    Photomultiplier tube with dynode array having venetian-blind structure
    46.
    发明授权
    Photomultiplier tube with dynode array having venetian-blind structure 失效
    带有DENNODE ARRAY VENETIAN-BLIND结构的光电管

    公开(公告)号:US5180943A

    公开(公告)日:1993-01-19

    申请号:US610657

    申请日:1990-11-08

    CPC classification number: H01J43/045 H01J43/22

    Abstract: A venetian-blind type of photomultiplier tube comprising a photocathode for converting an incident light into photoelectrons, a venetian-blind type of dynode array comprising plural dynode rows arranged in a first direction, each of which comprises plural dynode elements arranged at a constant pitch in a second direction, each dynode element having a plate inclined to the first direction for emitting the secondary electrons, an anode array comprising plural anodes arranged in the second direction for collecting the secondary electrons emitted from the dynode array and outputting an amplified electrical signal corresponding to the light, and one or more electron converging electrodes for converging at least one stream of the photoelectrons and the secondary electrons and concentrically directing the converged stream to a predetermined portion of each of the dynode elements. The electron-flight control member may have various patterns such as a grid, strip, mesh and multi-aperture structures.

    Digital anode to determine the location of electrons on a given surface
    47.
    发明授权
    Digital anode to determine the location of electrons on a given surface 失效
    数字阳极确定给定表面上电子的位置

    公开(公告)号:US5111035A

    公开(公告)日:1992-05-05

    申请号:US483915

    申请日:1990-02-22

    Inventor: Adriano de Luca

    CPC classification number: G01T1/28 H01J43/045 H01J43/246 H01J43/30

    Abstract: The present invention refers to a digital anode that permits capturing electrons and digitalizing their location on a given surface, so that it can be stored in a memory to be later processed and either interpreted, printed, filtered or transferred.

    Abstract translation: 本发明涉及一种数字阳极,其允许捕获电子并在给定的表面上对其位置进行数字化,使得其可以存储在存储器中以进行后续处理和解释,打印,过滤或转移。

    Multiple section photomultiplier tube
    48.
    发明授权
    Multiple section photomultiplier tube 失效
    多段光电倍增管

    公开(公告)号:US5077504A

    公开(公告)日:1991-12-31

    申请号:US615292

    申请日:1990-11-19

    Applicant: Fred A. Helvy

    Inventor: Fred A. Helvy

    CPC classification number: H01J43/045

    Abstract: A multiple section photomultiplier tube constructed as a matrix of several independent tubes in one envelope. The photocathode to dynode spacings are isolated by a separator configuration built with walls which interlock in cooperating slots, and each photocathode operates with its own independent dynode cage. One dynode in each cage is maintained electrically independent, and its connection is brought out of the envelope independently. This permits independent adjustment of the gain for each of the tube's multiple sections, so they can be adjusted to the same response for a standard radiation signal. The entire tube can then be used to monitor a large area for radiation, and will yield the same response over its entire cathode area.

    Photomultiplier tube using means of preventing divergence of electrons
    50.
    发明授权
    Photomultiplier tube using means of preventing divergence of electrons 失效
    使用防止电子发散的手段的光电倍增管

    公开(公告)号:US4937506A

    公开(公告)日:1990-06-26

    申请号:US228200

    申请日:1988-08-04

    CPC classification number: H01J43/045

    Abstract: A photomultiplier tube comprising a photocathode, a plurality of mesh dynodes arranged parallel to the photocathode, an anode that is disposed in a face-to-face relationship with the photocathode in such a manner that the mesh dynodes are interposed between the anode and the photocathode, the anode being divided into segments larger than the openings of each dynode, and at least one layer of focusing electrode for focusing an electron beam by the lens action which is disposed between the photocathode and the anode.

    Abstract translation: 一种光电倍增管,包括光电阴极,平行于光电阴极排列的多个网格倍增电极,以与阳极和光电阴极之间插入的网络倍增电极的方式与光电阴极以面对面关系设置的阳极 阳极被分成比每个倍增电极的开口大的段,以及至少一层用于通过设置在光电阴极和阳极之间的透镜作用聚焦电子束的聚焦电极。

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